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annotate planemo/lib/python3.7/site-packages/psutil/__init__.py @ 1:56ad4e20f292 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
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1
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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
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4 # Use of this source code is governed by a BSD-style license that can be
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5 # found in the LICENSE file.
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6
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7 """psutil is a cross-platform library for retrieving information on
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8 running processes and system utilization (CPU, memory, disks, network,
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9 sensors) in Python. Supported platforms:
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10
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11 - Linux
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12 - Windows
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13 - macOS
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14 - FreeBSD
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15 - OpenBSD
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16 - NetBSD
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17 - Sun Solaris
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18 - AIX
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19
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20 Works with Python versions from 2.6 to 3.4+.
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21 """
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22
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23 from __future__ import division
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24 import collections
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25 import contextlib
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26 import datetime
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27 import functools
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28 import os
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29 import signal
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30 import subprocess
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31 import sys
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32 import threading
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33 import time
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34 try:
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35 import pwd
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36 except ImportError:
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37 pwd = None
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38
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39 from . import _common
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40 from ._common import AccessDenied
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41 from ._common import Error
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42 from ._common import memoize_when_activated
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43 from ._common import NoSuchProcess
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44 from ._common import TimeoutExpired
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45 from ._common import wrap_numbers as _wrap_numbers
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46 from ._common import ZombieProcess
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47 from ._compat import long
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48 from ._compat import PermissionError
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49 from ._compat import ProcessLookupError
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50 from ._compat import PY3 as _PY3
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51
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52 from ._common import CONN_CLOSE
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53 from ._common import CONN_CLOSE_WAIT
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54 from ._common import CONN_CLOSING
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55 from ._common import CONN_ESTABLISHED
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56 from ._common import CONN_FIN_WAIT1
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57 from ._common import CONN_FIN_WAIT2
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58 from ._common import CONN_LAST_ACK
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59 from ._common import CONN_LISTEN
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60 from ._common import CONN_NONE
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61 from ._common import CONN_SYN_RECV
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62 from ._common import CONN_SYN_SENT
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63 from ._common import CONN_TIME_WAIT
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64 from ._common import NIC_DUPLEX_FULL
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65 from ._common import NIC_DUPLEX_HALF
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66 from ._common import NIC_DUPLEX_UNKNOWN
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67 from ._common import POWER_TIME_UNKNOWN
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68 from ._common import POWER_TIME_UNLIMITED
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69 from ._common import STATUS_DEAD
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70 from ._common import STATUS_DISK_SLEEP
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71 from ._common import STATUS_IDLE
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72 from ._common import STATUS_LOCKED
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73 from ._common import STATUS_PARKED
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74 from ._common import STATUS_RUNNING
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75 from ._common import STATUS_SLEEPING
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76 from ._common import STATUS_STOPPED
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77 from ._common import STATUS_TRACING_STOP
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78 from ._common import STATUS_WAITING
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79 from ._common import STATUS_WAKING
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80 from ._common import STATUS_ZOMBIE
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81
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82 from ._common import AIX
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83 from ._common import BSD
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84 from ._common import FREEBSD # NOQA
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85 from ._common import LINUX
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86 from ._common import MACOS
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87 from ._common import NETBSD # NOQA
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88 from ._common import OPENBSD # NOQA
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89 from ._common import OSX # deprecated alias
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90 from ._common import POSIX # NOQA
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91 from ._common import SUNOS
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92 from ._common import WINDOWS
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93
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94 if LINUX:
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95 # This is public API and it will be retrieved from _pslinux.py
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96 # via sys.modules.
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97 PROCFS_PATH = "/proc"
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98
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99 from . import _pslinux as _psplatform
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100
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101 from ._pslinux import IOPRIO_CLASS_BE # NOQA
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102 from ._pslinux import IOPRIO_CLASS_IDLE # NOQA
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103 from ._pslinux import IOPRIO_CLASS_NONE # NOQA
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104 from ._pslinux import IOPRIO_CLASS_RT # NOQA
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105 # Linux >= 2.6.36
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106 if _psplatform.HAS_PRLIMIT:
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107 from ._psutil_linux import RLIM_INFINITY # NOQA
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108 from ._psutil_linux import RLIMIT_AS # NOQA
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109 from ._psutil_linux import RLIMIT_CORE # NOQA
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110 from ._psutil_linux import RLIMIT_CPU # NOQA
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111 from ._psutil_linux import RLIMIT_DATA # NOQA
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112 from ._psutil_linux import RLIMIT_FSIZE # NOQA
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113 from ._psutil_linux import RLIMIT_LOCKS # NOQA
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114 from ._psutil_linux import RLIMIT_MEMLOCK # NOQA
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115 from ._psutil_linux import RLIMIT_NOFILE # NOQA
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116 from ._psutil_linux import RLIMIT_NPROC # NOQA
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117 from ._psutil_linux import RLIMIT_RSS # NOQA
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118 from ._psutil_linux import RLIMIT_STACK # NOQA
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119 # Kinda ugly but considerably faster than using hasattr() and
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120 # setattr() against the module object (we are at import time:
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121 # speed matters).
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122 from . import _psutil_linux
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123 try:
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124 RLIMIT_MSGQUEUE = _psutil_linux.RLIMIT_MSGQUEUE
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125 except AttributeError:
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126 pass
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127 try:
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128 RLIMIT_NICE = _psutil_linux.RLIMIT_NICE
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129 except AttributeError:
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130 pass
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131 try:
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132 RLIMIT_RTPRIO = _psutil_linux.RLIMIT_RTPRIO
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133 except AttributeError:
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134 pass
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135 try:
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136 RLIMIT_RTTIME = _psutil_linux.RLIMIT_RTTIME
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137 except AttributeError:
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138 pass
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139 try:
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140 RLIMIT_SIGPENDING = _psutil_linux.RLIMIT_SIGPENDING
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141 except AttributeError:
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142 pass
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143
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144 elif WINDOWS:
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145 from . import _pswindows as _psplatform
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146 from ._psutil_windows import ABOVE_NORMAL_PRIORITY_CLASS # NOQA
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147 from ._psutil_windows import BELOW_NORMAL_PRIORITY_CLASS # NOQA
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148 from ._psutil_windows import HIGH_PRIORITY_CLASS # NOQA
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149 from ._psutil_windows import IDLE_PRIORITY_CLASS # NOQA
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150 from ._psutil_windows import NORMAL_PRIORITY_CLASS # NOQA
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151 from ._psutil_windows import REALTIME_PRIORITY_CLASS # NOQA
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152 from ._pswindows import CONN_DELETE_TCB # NOQA
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153 from ._pswindows import IOPRIO_VERYLOW # NOQA
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154 from ._pswindows import IOPRIO_LOW # NOQA
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155 from ._pswindows import IOPRIO_NORMAL # NOQA
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156 from ._pswindows import IOPRIO_HIGH # NOQA
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157
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158 elif MACOS:
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159 from . import _psosx as _psplatform
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160
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161 elif BSD:
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162 from . import _psbsd as _psplatform
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163
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164 elif SUNOS:
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165 from . import _pssunos as _psplatform
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166 from ._pssunos import CONN_BOUND # NOQA
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167 from ._pssunos import CONN_IDLE # NOQA
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168
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169 # This is public writable API which is read from _pslinux.py and
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170 # _pssunos.py via sys.modules.
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171 PROCFS_PATH = "/proc"
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172
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173 elif AIX:
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174 from . import _psaix as _psplatform
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175
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176 # This is public API and it will be retrieved from _pslinux.py
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177 # via sys.modules.
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178 PROCFS_PATH = "/proc"
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179
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180 else: # pragma: no cover
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181 raise NotImplementedError('platform %s is not supported' % sys.platform)
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182
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183
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184 __all__ = [
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185 # exceptions
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186 "Error", "NoSuchProcess", "ZombieProcess", "AccessDenied",
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187 "TimeoutExpired",
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188
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189 # constants
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190 "version_info", "__version__",
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191
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192 "STATUS_RUNNING", "STATUS_IDLE", "STATUS_SLEEPING", "STATUS_DISK_SLEEP",
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193 "STATUS_STOPPED", "STATUS_TRACING_STOP", "STATUS_ZOMBIE", "STATUS_DEAD",
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194 "STATUS_WAKING", "STATUS_LOCKED", "STATUS_WAITING", "STATUS_LOCKED",
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195 "STATUS_PARKED",
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196
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197 "CONN_ESTABLISHED", "CONN_SYN_SENT", "CONN_SYN_RECV", "CONN_FIN_WAIT1",
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198 "CONN_FIN_WAIT2", "CONN_TIME_WAIT", "CONN_CLOSE", "CONN_CLOSE_WAIT",
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199 "CONN_LAST_ACK", "CONN_LISTEN", "CONN_CLOSING", "CONN_NONE",
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200
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201 "AF_LINK",
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202
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203 "NIC_DUPLEX_FULL", "NIC_DUPLEX_HALF", "NIC_DUPLEX_UNKNOWN",
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204
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205 "POWER_TIME_UNKNOWN", "POWER_TIME_UNLIMITED",
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206
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207 "BSD", "FREEBSD", "LINUX", "NETBSD", "OPENBSD", "MACOS", "OSX", "POSIX",
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208 "SUNOS", "WINDOWS", "AIX",
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209
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210 # classes
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211 "Process", "Popen",
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212
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213 # functions
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214 "pid_exists", "pids", "process_iter", "wait_procs", # proc
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215 "virtual_memory", "swap_memory", # memory
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216 "cpu_times", "cpu_percent", "cpu_times_percent", "cpu_count", # cpu
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217 "cpu_stats", # "cpu_freq", "getloadavg"
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218 "net_io_counters", "net_connections", "net_if_addrs", # network
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219 "net_if_stats",
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220 "disk_io_counters", "disk_partitions", "disk_usage", # disk
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221 # "sensors_temperatures", "sensors_battery", "sensors_fans" # sensors
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222 "users", "boot_time", # others
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223 ]
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224
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225 AF_LINK = _psplatform.AF_LINK
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226
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227 __all__.extend(_psplatform.__extra__all__)
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228 __author__ = "Giampaolo Rodola'"
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229 __version__ = "5.7.2"
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230 version_info = tuple([int(num) for num in __version__.split('.')])
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231
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232 _timer = getattr(time, 'monotonic', time.time)
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233 _TOTAL_PHYMEM = None
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234 _LOWEST_PID = None
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235 _SENTINEL = object()
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236
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237 # Sanity check in case the user messed up with psutil installation
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238 # or did something weird with sys.path. In this case we might end
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239 # up importing a python module using a C extension module which
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240 # was compiled for a different version of psutil.
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241 # We want to prevent that by failing sooner rather than later.
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242 # See: https://github.com/giampaolo/psutil/issues/564
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243 if (int(__version__.replace('.', '')) !=
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244 getattr(_psplatform.cext, 'version', None)):
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245 msg = "version conflict: %r C extension module was built for another " \
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246 "version of psutil" % getattr(_psplatform.cext, "__file__")
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247 if hasattr(_psplatform.cext, 'version'):
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248 msg += " (%s instead of %s)" % (
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249 '.'.join([x for x in str(_psplatform.cext.version)]), __version__)
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250 else:
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251 msg += " (different than %s)" % __version__
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252 msg += "; you may try to 'pip uninstall psutil', manually remove %s" % (
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253 getattr(_psplatform.cext, "__file__",
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254 "the existing psutil install directory"))
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255 msg += " or clean the virtual env somehow, then reinstall"
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256 raise ImportError(msg)
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257
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258
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259 # =====================================================================
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260 # --- Utils
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261 # =====================================================================
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262
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263
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264 if hasattr(_psplatform, 'ppid_map'):
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265 # Faster version (Windows and Linux).
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266 _ppid_map = _psplatform.ppid_map
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267 else:
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268 def _ppid_map():
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269 """Return a {pid: ppid, ...} dict for all running processes in
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270 one shot. Used to speed up Process.children().
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271 """
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272 ret = {}
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273 for pid in pids():
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274 try:
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275 ret[pid] = _psplatform.Process(pid).ppid()
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276 except (NoSuchProcess, ZombieProcess):
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277 pass
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278 return ret
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279
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280
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281 def _assert_pid_not_reused(fun):
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282 """Decorator which raises NoSuchProcess in case a process is no
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283 longer running or its PID has been reused.
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284 """
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285 @functools.wraps(fun)
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286 def wrapper(self, *args, **kwargs):
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287 if not self.is_running():
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288 raise NoSuchProcess(self.pid, self._name)
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289 return fun(self, *args, **kwargs)
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290 return wrapper
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291
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292
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293 def _pprint_secs(secs):
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294 """Format seconds in a human readable form."""
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295 now = time.time()
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296 secs_ago = int(now - secs)
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297 if secs_ago < 60 * 60 * 24:
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298 fmt = "%H:%M:%S"
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299 else:
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300 fmt = "%Y-%m-%d %H:%M:%S"
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301 return datetime.datetime.fromtimestamp(secs).strftime(fmt)
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302
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303
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304 # =====================================================================
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305 # --- Process class
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306 # =====================================================================
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307
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308
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309 class Process(object):
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310 """Represents an OS process with the given PID.
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311 If PID is omitted current process PID (os.getpid()) is used.
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312 Raise NoSuchProcess if PID does not exist.
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313
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314 Note that most of the methods of this class do not make sure
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315 the PID of the process being queried has been reused over time.
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316 That means you might end up retrieving an information referring
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317 to another process in case the original one this instance
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318 refers to is gone in the meantime.
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319
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320 The only exceptions for which process identity is pre-emptively
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321 checked and guaranteed are:
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322
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323 - parent()
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324 - children()
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325 - nice() (set)
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326 - ionice() (set)
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327 - rlimit() (set)
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328 - cpu_affinity (set)
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329 - suspend()
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330 - resume()
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331 - send_signal()
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332 - terminate()
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333 - kill()
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334
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335 To prevent this problem for all other methods you can:
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336 - use is_running() before querying the process
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337 - if you're continuously iterating over a set of Process
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338 instances use process_iter() which pre-emptively checks
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339 process identity for every yielded instance
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340 """
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341
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342 def __init__(self, pid=None):
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343 self._init(pid)
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344
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345 def _init(self, pid, _ignore_nsp=False):
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346 if pid is None:
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347 pid = os.getpid()
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348 else:
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349 if not _PY3 and not isinstance(pid, (int, long)):
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350 raise TypeError('pid must be an integer (got %r)' % pid)
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351 if pid < 0:
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352 raise ValueError('pid must be a positive integer (got %s)'
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353 % pid)
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354 self._pid = pid
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355 self._name = None
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356 self._exe = None
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357 self._create_time = None
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358 self._gone = False
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359 self._hash = None
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360 self._lock = threading.RLock()
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361 # used for caching on Windows only (on POSIX ppid may change)
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362 self._ppid = None
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363 # platform-specific modules define an _psplatform.Process
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364 # implementation class
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365 self._proc = _psplatform.Process(pid)
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366 self._last_sys_cpu_times = None
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367 self._last_proc_cpu_times = None
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368 self._exitcode = _SENTINEL
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369 # cache creation time for later use in is_running() method
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370 try:
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371 self.create_time()
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372 except AccessDenied:
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373 # We should never get here as AFAIK we're able to get
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374 # process creation time on all platforms even as a
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375 # limited user.
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376 pass
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377 except ZombieProcess:
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378 # Zombies can still be queried by this class (although
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379 # not always) and pids() return them so just go on.
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380 pass
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381 except NoSuchProcess:
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382 if not _ignore_nsp:
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parents:
diff changeset
383 msg = 'no process found with pid %s' % pid
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parents:
diff changeset
384 raise NoSuchProcess(pid, None, msg)
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parents:
diff changeset
385 else:
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parents:
diff changeset
386 self._gone = True
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guerler
parents:
diff changeset
387 # This pair is supposed to indentify a Process instance
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parents:
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388 # univocally over time (the PID alone is not enough as
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guerler
parents:
diff changeset
389 # it might refer to a process whose PID has been reused).
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parents:
diff changeset
390 # This will be used later in __eq__() and is_running().
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391 self._ident = (self.pid, self._create_time)
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parents:
diff changeset
392
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393 def __str__(self):
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parents:
diff changeset
394 try:
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395 info = collections.OrderedDict()
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parents:
diff changeset
396 except AttributeError:
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397 info = {} # Python 2.6
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398 info["pid"] = self.pid
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parents:
diff changeset
399 if self._name:
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400 info['name'] = self._name
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parents:
diff changeset
401 with self.oneshot():
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parents:
diff changeset
402 try:
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parents:
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403 info["name"] = self.name()
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parents:
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404 info["status"] = self.status()
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405 except ZombieProcess:
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406 info["status"] = "zombie"
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parents:
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407 except NoSuchProcess:
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408 info["status"] = "terminated"
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409 except AccessDenied:
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guerler
parents:
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410 pass
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411 if self._exitcode not in (_SENTINEL, None):
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412 info["exitcode"] = self._exitcode
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parents:
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413 if self._create_time:
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414 info['started'] = _pprint_secs(self._create_time)
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415 return "%s.%s(%s)" % (
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416 self.__class__.__module__,
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417 self.__class__.__name__,
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418 ", ".join(["%s=%r" % (k, v) for k, v in info.items()]))
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419
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420 __repr__ = __str__
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diff changeset
421
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parents:
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422 def __eq__(self, other):
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423 # Test for equality with another Process object based
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
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424 # on PID and creation time.
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parents:
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425 if not isinstance(other, Process):
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426 return NotImplemented
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
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427 return self._ident == other._ident
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428
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429 def __ne__(self, other):
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diff changeset
430 return not self == other
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431
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432 def __hash__(self):
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433 if self._hash is None:
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434 self._hash = hash(self._ident)
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435 return self._hash
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436
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437 @property
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438 def pid(self):
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diff changeset
439 """The process PID."""
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440 return self._pid
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441
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442 # --- utility methods
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443
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444 @contextlib.contextmanager
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445 def oneshot(self):
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446 """Utility context manager which considerably speeds up the
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parents:
diff changeset
447 retrieval of multiple process information at the same time.
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guerler
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448
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449 Internally different process info (e.g. name, ppid, uids,
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parents:
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450 gids, ...) may be fetched by using the same routine, but
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parents:
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451 only one information is returned and the others are discarded.
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452 When using this context manager the internal routine is
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diff changeset
453 executed once (in the example below on name()) and the
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parents:
diff changeset
454 other info are cached.
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diff changeset
455
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parents:
diff changeset
456 The cache is cleared when exiting the context manager block.
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diff changeset
457 The advice is to use this every time you retrieve more than
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diff changeset
458 one information about the process. If you're lucky, you'll
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guerler
parents:
diff changeset
459 get a hell of a speedup.
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parents:
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460
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
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461 >>> import psutil
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
462 >>> p = psutil.Process()
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parents:
diff changeset
463 >>> with p.oneshot():
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parents:
diff changeset
464 ... p.name() # collect multiple info
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parents:
diff changeset
465 ... p.cpu_times() # return cached value
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diff changeset
466 ... p.cpu_percent() # return cached value
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diff changeset
467 ... p.create_time() # return cached value
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guerler
parents:
diff changeset
468 ...
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
469 >>>
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
470 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
471 with self._lock:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
472 if hasattr(self, "_cache"):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
473 # NOOP: this covers the use case where the user enters the
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
474 # context twice:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
475 #
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
476 # >>> with p.oneshot():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
477 # ... with p.oneshot():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
478 # ...
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
479 #
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
480 # Also, since as_dict() internally uses oneshot()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
481 # I expect that the code below will be a pretty common
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
482 # "mistake" that the user will make, so let's guard
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
483 # against that:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
484 #
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
485 # >>> with p.oneshot():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
486 # ... p.as_dict()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
487 # ...
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
488 yield
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
489 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
490 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
491 # cached in case cpu_percent() is used
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
492 self.cpu_times.cache_activate(self)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
493 # cached in case memory_percent() is used
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guerler
parents:
diff changeset
494 self.memory_info.cache_activate(self)
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guerler
parents:
diff changeset
495 # cached in case parent() is used
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parents:
diff changeset
496 self.ppid.cache_activate(self)
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guerler
parents:
diff changeset
497 # cached in case username() is used
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guerler
parents:
diff changeset
498 if POSIX:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
499 self.uids.cache_activate(self)
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guerler
parents:
diff changeset
500 # specific implementation cache
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
501 self._proc.oneshot_enter()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
502 yield
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
503 finally:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
504 self.cpu_times.cache_deactivate(self)
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guerler
parents:
diff changeset
505 self.memory_info.cache_deactivate(self)
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guerler
parents:
diff changeset
506 self.ppid.cache_deactivate(self)
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guerler
parents:
diff changeset
507 if POSIX:
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diff changeset
508 self.uids.cache_deactivate(self)
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guerler
parents:
diff changeset
509 self._proc.oneshot_exit()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
510
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
511 def as_dict(self, attrs=None, ad_value=None):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
512 """Utility method returning process information as a
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
513 hashable dictionary.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
514 If *attrs* is specified it must be a list of strings
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
515 reflecting available Process class' attribute names
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
516 (e.g. ['cpu_times', 'name']) else all public (read
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
517 only) attributes are assumed.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
518 *ad_value* is the value which gets assigned in case
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
519 AccessDenied or ZombieProcess exception is raised when
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
520 retrieving that particular process information.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
521 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
522 valid_names = _as_dict_attrnames
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
523 if attrs is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
524 if not isinstance(attrs, (list, tuple, set, frozenset)):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
525 raise TypeError("invalid attrs type %s" % type(attrs))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
526 attrs = set(attrs)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
527 invalid_names = attrs - valid_names
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
528 if invalid_names:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
529 raise ValueError("invalid attr name%s %s" % (
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
530 "s" if len(invalid_names) > 1 else "",
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
531 ", ".join(map(repr, invalid_names))))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
532
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
533 retdict = dict()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
534 ls = attrs or valid_names
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
535 with self.oneshot():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
536 for name in ls:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
537 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
538 if name == 'pid':
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
539 ret = self.pid
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
540 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
541 meth = getattr(self, name)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
542 ret = meth()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
543 except (AccessDenied, ZombieProcess):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
544 ret = ad_value
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
545 except NotImplementedError:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
546 # in case of not implemented functionality (may happen
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
547 # on old or exotic systems) we want to crash only if
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
548 # the user explicitly asked for that particular attr
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
549 if attrs:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
550 raise
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
551 continue
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
552 retdict[name] = ret
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
553 return retdict
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
554
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
555 def parent(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
556 """Return the parent process as a Process object pre-emptively
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
557 checking whether PID has been reused.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
558 If no parent is known return None.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
559 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
560 lowest_pid = _LOWEST_PID if _LOWEST_PID is not None else pids()[0]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
561 if self.pid == lowest_pid:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
562 return None
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
563 ppid = self.ppid()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
564 if ppid is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
565 ctime = self.create_time()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
566 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
567 parent = Process(ppid)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
568 if parent.create_time() <= ctime:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
569 return parent
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
570 # ...else ppid has been reused by another process
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
571 except NoSuchProcess:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
572 pass
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
573
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
574 def parents(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
575 """Return the parents of this process as a list of Process
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
576 instances. If no parents are known return an empty list.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
577 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
578 parents = []
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
579 proc = self.parent()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
580 while proc is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
581 parents.append(proc)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
582 proc = proc.parent()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
583 return parents
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
584
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
585 def is_running(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
586 """Return whether this process is running.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
587 It also checks if PID has been reused by another process in
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
588 which case return False.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
589 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
590 if self._gone:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
591 return False
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
592 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
593 # Checking if PID is alive is not enough as the PID might
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
594 # have been reused by another process: we also want to
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
595 # verify process identity.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
596 # Process identity / uniqueness over time is guaranteed by
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
597 # (PID + creation time) and that is verified in __eq__.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
598 return self == Process(self.pid)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
599 except ZombieProcess:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
600 # We should never get here as it's already handled in
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
601 # Process.__init__; here just for extra safety.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
602 return True
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
603 except NoSuchProcess:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
604 self._gone = True
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
605 return False
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
606
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
607 # --- actual API
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
608
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
609 @memoize_when_activated
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
610 def ppid(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
611 """The process parent PID.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
612 On Windows the return value is cached after first call.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
613 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
614 # On POSIX we don't want to cache the ppid as it may unexpectedly
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
615 # change to 1 (init) in case this process turns into a zombie:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
616 # https://github.com/giampaolo/psutil/issues/321
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
617 # http://stackoverflow.com/questions/356722/
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
618
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
619 # XXX should we check creation time here rather than in
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
620 # Process.parent()?
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
621 if POSIX:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
622 return self._proc.ppid()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
623 else: # pragma: no cover
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
624 self._ppid = self._ppid or self._proc.ppid()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
625 return self._ppid
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
626
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
627 def name(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
628 """The process name. The return value is cached after first call."""
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
629 # Process name is only cached on Windows as on POSIX it may
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
630 # change, see:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
631 # https://github.com/giampaolo/psutil/issues/692
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
632 if WINDOWS and self._name is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
633 return self._name
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
634 name = self._proc.name()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
635 if POSIX and len(name) >= 15:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
636 # On UNIX the name gets truncated to the first 15 characters.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
637 # If it matches the first part of the cmdline we return that
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
638 # one instead because it's usually more explicative.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
639 # Examples are "gnome-keyring-d" vs. "gnome-keyring-daemon".
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
640 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
641 cmdline = self.cmdline()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
642 except AccessDenied:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
643 pass
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
644 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
645 if cmdline:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
646 extended_name = os.path.basename(cmdline[0])
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
647 if extended_name.startswith(name):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
648 name = extended_name
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
649 self._name = name
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
650 self._proc._name = name
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
651 return name
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
652
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
653 def exe(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
654 """The process executable as an absolute path.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
655 May also be an empty string.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
656 The return value is cached after first call.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
657 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
658 def guess_it(fallback):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
659 # try to guess exe from cmdline[0] in absence of a native
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
660 # exe representation
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
661 cmdline = self.cmdline()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
662 if cmdline and hasattr(os, 'access') and hasattr(os, 'X_OK'):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
663 exe = cmdline[0] # the possible exe
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
664 # Attempt to guess only in case of an absolute path.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
665 # It is not safe otherwise as the process might have
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
666 # changed cwd.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
667 if (os.path.isabs(exe) and
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
668 os.path.isfile(exe) and
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
669 os.access(exe, os.X_OK)):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
670 return exe
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
671 if isinstance(fallback, AccessDenied):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
672 raise fallback
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
673 return fallback
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
674
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
675 if self._exe is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
676 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
677 exe = self._proc.exe()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
678 except AccessDenied as err:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
679 return guess_it(fallback=err)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
680 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
681 if not exe:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
682 # underlying implementation can legitimately return an
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
683 # empty string; if that's the case we don't want to
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
684 # raise AD while guessing from the cmdline
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
685 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
686 exe = guess_it(fallback=exe)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
687 except AccessDenied:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
688 pass
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
689 self._exe = exe
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
690 return self._exe
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
691
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
692 def cmdline(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
693 """The command line this process has been called with."""
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
694 return self._proc.cmdline()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
695
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
696 def status(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
697 """The process current status as a STATUS_* constant."""
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
698 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
699 return self._proc.status()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
700 except ZombieProcess:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
701 return STATUS_ZOMBIE
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
702
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
703 def username(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
704 """The name of the user that owns the process.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
705 On UNIX this is calculated by using *real* process uid.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
706 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
707 if POSIX:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
708 if pwd is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
709 # might happen if python was installed from sources
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
710 raise ImportError(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
711 "requires pwd module shipped with standard python")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
712 real_uid = self.uids().real
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
713 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
714 return pwd.getpwuid(real_uid).pw_name
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
715 except KeyError:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
716 # the uid can't be resolved by the system
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
717 return str(real_uid)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
718 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
719 return self._proc.username()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
720
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
721 def create_time(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
722 """The process creation time as a floating point number
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
723 expressed in seconds since the epoch, in UTC.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
724 The return value is cached after first call.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
725 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
726 if self._create_time is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
727 self._create_time = self._proc.create_time()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
728 return self._create_time
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
729
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
730 def cwd(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
731 """Process current working directory as an absolute path."""
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
732 return self._proc.cwd()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
733
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
734 def nice(self, value=None):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
735 """Get or set process niceness (priority)."""
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
736 if value is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
737 return self._proc.nice_get()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
738 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
739 if not self.is_running():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
740 raise NoSuchProcess(self.pid, self._name)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
741 self._proc.nice_set(value)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
742
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
743 if POSIX:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
744
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
745 @memoize_when_activated
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
746 def uids(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
747 """Return process UIDs as a (real, effective, saved)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
748 namedtuple.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
749 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
750 return self._proc.uids()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
751
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
752 def gids(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
753 """Return process GIDs as a (real, effective, saved)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
754 namedtuple.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
755 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
756 return self._proc.gids()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
757
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
758 def terminal(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
759 """The terminal associated with this process, if any,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
760 else None.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
761 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
762 return self._proc.terminal()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
763
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
764 def num_fds(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
765 """Return the number of file descriptors opened by this
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
766 process (POSIX only).
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
767 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
768 return self._proc.num_fds()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
769
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
770 # Linux, BSD, AIX and Windows only
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
771 if hasattr(_psplatform.Process, "io_counters"):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
772
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
773 def io_counters(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
774 """Return process I/O statistics as a
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
775 (read_count, write_count, read_bytes, write_bytes)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
776 namedtuple.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
777 Those are the number of read/write calls performed and the
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
778 amount of bytes read and written by the process.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
779 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
780 return self._proc.io_counters()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
781
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
782 # Linux and Windows
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
783 if hasattr(_psplatform.Process, "ionice_get"):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
784
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parents:
diff changeset
785 def ionice(self, ioclass=None, value=None):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
786 """Get or set process I/O niceness (priority).
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guerler
parents:
diff changeset
787
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guerler
parents:
diff changeset
788 On Linux *ioclass* is one of the IOPRIO_CLASS_* constants.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
789 *value* is a number which goes from 0 to 7. The higher the
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
790 value, the lower the I/O priority of the process.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
791
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
792 On Windows only *ioclass* is used and it can be set to 2
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
793 (normal), 1 (low) or 0 (very low).
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
794
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
795 Available on Linux and Windows > Vista only.
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parents:
diff changeset
796 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
797 if ioclass is None:
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parents:
diff changeset
798 if value is not None:
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parents:
diff changeset
799 raise ValueError("'ioclass' argument must be specified")
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parents:
diff changeset
800 return self._proc.ionice_get()
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parents:
diff changeset
801 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
802 return self._proc.ionice_set(ioclass, value)
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parents:
diff changeset
803
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guerler
parents:
diff changeset
804 # Linux only
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parents:
diff changeset
805 if hasattr(_psplatform.Process, "rlimit"):
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parents:
diff changeset
806
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parents:
diff changeset
807 def rlimit(self, resource, limits=None):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
808 """Get or set process resource limits as a (soft, hard)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
809 tuple.
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parents:
diff changeset
810
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
811 *resource* is one of the RLIMIT_* constants.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
812 *limits* is supposed to be a (soft, hard) tuple.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
813
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
814 See "man prlimit" for further info.
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parents:
diff changeset
815 Available on Linux only.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
816 """
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parents:
diff changeset
817 if limits is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
818 return self._proc.rlimit(resource)
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parents:
diff changeset
819 else:
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diff changeset
820 return self._proc.rlimit(resource, limits)
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parents:
diff changeset
821
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
822 # Windows, Linux and FreeBSD only
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parents:
diff changeset
823 if hasattr(_psplatform.Process, "cpu_affinity_get"):
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guerler
parents:
diff changeset
824
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parents:
diff changeset
825 def cpu_affinity(self, cpus=None):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
826 """Get or set process CPU affinity.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
827 If specified, *cpus* must be a list of CPUs for which you
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
828 want to set the affinity (e.g. [0, 1]).
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
829 If an empty list is passed, all egible CPUs are assumed
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
830 (and set).
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
831 (Windows, Linux and BSD only).
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
832 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
833 if cpus is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
834 return list(set(self._proc.cpu_affinity_get()))
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diff changeset
835 else:
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parents:
diff changeset
836 if not cpus:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
837 if hasattr(self._proc, "_get_eligible_cpus"):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
838 cpus = self._proc._get_eligible_cpus()
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parents:
diff changeset
839 else:
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guerler
parents:
diff changeset
840 cpus = tuple(range(len(cpu_times(percpu=True))))
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guerler
parents:
diff changeset
841 self._proc.cpu_affinity_set(list(set(cpus)))
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guerler
parents:
diff changeset
842
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parents:
diff changeset
843 # Linux, FreeBSD, SunOS
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parents:
diff changeset
844 if hasattr(_psplatform.Process, "cpu_num"):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
845
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parents:
diff changeset
846 def cpu_num(self):
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parents:
diff changeset
847 """Return what CPU this process is currently running on.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
848 The returned number should be <= psutil.cpu_count()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
849 and <= len(psutil.cpu_percent(percpu=True)).
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guerler
parents:
diff changeset
850 It may be used in conjunction with
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
851 psutil.cpu_percent(percpu=True) to observe the system
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
852 workload distributed across CPUs.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
853 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
854 return self._proc.cpu_num()
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guerler
parents:
diff changeset
855
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guerler
parents:
diff changeset
856 # Linux, macOS, Windows, Solaris, AIX
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
857 if hasattr(_psplatform.Process, "environ"):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
858
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
859 def environ(self):
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parents:
diff changeset
860 """The environment variables of the process as a dict. Note: this
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
861 might not reflect changes made after the process started. """
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parents:
diff changeset
862 return self._proc.environ()
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parents:
diff changeset
863
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parents:
diff changeset
864 if WINDOWS:
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parents:
diff changeset
865
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diff changeset
866 def num_handles(self):
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parents:
diff changeset
867 """Return the number of handles opened by this process
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
868 (Windows only).
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parents:
diff changeset
869 """
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guerler
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diff changeset
870 return self._proc.num_handles()
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guerler
parents:
diff changeset
871
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diff changeset
872 def num_ctx_switches(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
873 """Return the number of voluntary and involuntary context
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
874 switches performed by this process.
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parents:
diff changeset
875 """
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guerler
parents:
diff changeset
876 return self._proc.num_ctx_switches()
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parents:
diff changeset
877
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parents:
diff changeset
878 def num_threads(self):
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guerler
parents:
diff changeset
879 """Return the number of threads used by this process."""
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parents:
diff changeset
880 return self._proc.num_threads()
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parents:
diff changeset
881
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parents:
diff changeset
882 if hasattr(_psplatform.Process, "threads"):
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guerler
parents:
diff changeset
883
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parents:
diff changeset
884 def threads(self):
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guerler
parents:
diff changeset
885 """Return threads opened by process as a list of
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
886 (id, user_time, system_time) namedtuples representing
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
887 thread id and thread CPU times (user/system).
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guerler
parents:
diff changeset
888 On OpenBSD this method requires root access.
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parents:
diff changeset
889 """
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guerler
parents:
diff changeset
890 return self._proc.threads()
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guerler
parents:
diff changeset
891
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guerler
parents:
diff changeset
892 @_assert_pid_not_reused
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
893 def children(self, recursive=False):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
894 """Return the children of this process as a list of Process
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
895 instances, pre-emptively checking whether PID has been reused.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
896 If *recursive* is True return all the parent descendants.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
897
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
898 Example (A == this process):
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parents:
diff changeset
899
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parents:
diff changeset
900 A ─┐
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guerler
parents:
diff changeset
901 │
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guerler
parents:
diff changeset
902 ├─ B (child) ─┐
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guerler
parents:
diff changeset
903 │ └─ X (grandchild) ─┐
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guerler
parents:
diff changeset
904 │ └─ Y (great grandchild)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
905 ├─ C (child)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
906 └─ D (child)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
907
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
908 >>> import psutil
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
909 >>> p = psutil.Process()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
910 >>> p.children()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
911 B, C, D
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
912 >>> p.children(recursive=True)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
913 B, X, Y, C, D
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
914
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
915 Note that in the example above if process X disappears
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
916 process Y won't be listed as the reference to process A
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
917 is lost.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
918 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
919 ppid_map = _ppid_map()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
920 ret = []
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
921 if not recursive:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
922 for pid, ppid in ppid_map.items():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
923 if ppid == self.pid:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
924 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
925 child = Process(pid)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
926 # if child happens to be older than its parent
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
927 # (self) it means child's PID has been reused
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
928 if self.create_time() <= child.create_time():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
929 ret.append(child)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
930 except (NoSuchProcess, ZombieProcess):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
931 pass
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
932 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
933 # Construct a {pid: [child pids]} dict
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
934 reverse_ppid_map = collections.defaultdict(list)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
935 for pid, ppid in ppid_map.items():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
936 reverse_ppid_map[ppid].append(pid)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
937 # Recursively traverse that dict, starting from self.pid,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
938 # such that we only call Process() on actual children
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
939 seen = set()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
940 stack = [self.pid]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
941 while stack:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
942 pid = stack.pop()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
943 if pid in seen:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
944 # Since pids can be reused while the ppid_map is
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
945 # constructed, there may be rare instances where
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
946 # there's a cycle in the recorded process "tree".
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
947 continue
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
948 seen.add(pid)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
949 for child_pid in reverse_ppid_map[pid]:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
950 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
951 child = Process(child_pid)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
952 # if child happens to be older than its parent
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
953 # (self) it means child's PID has been reused
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
954 intime = self.create_time() <= child.create_time()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
955 if intime:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
956 ret.append(child)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
957 stack.append(child_pid)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
958 except (NoSuchProcess, ZombieProcess):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
959 pass
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
960 return ret
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
961
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
962 def cpu_percent(self, interval=None):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
963 """Return a float representing the current process CPU
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
964 utilization as a percentage.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
965
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
966 When *interval* is 0.0 or None (default) compares process times
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
967 to system CPU times elapsed since last call, returning
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
968 immediately (non-blocking). That means that the first time
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
969 this is called it will return a meaningful 0.0 value.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
970
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
971 When *interval* is > 0.0 compares process times to system CPU
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
972 times elapsed before and after the interval (blocking).
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
973
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
974 In this case is recommended for accuracy that this function
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
975 be called with at least 0.1 seconds between calls.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
976
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
977 A value > 100.0 can be returned in case of processes running
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
978 multiple threads on different CPU cores.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
979
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
980 The returned value is explicitly NOT split evenly between
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
981 all available logical CPUs. This means that a busy loop process
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
982 running on a system with 2 logical CPUs will be reported as
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
983 having 100% CPU utilization instead of 50%.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
984
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
985 Examples:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
986
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
987 >>> import psutil
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
988 >>> p = psutil.Process(os.getpid())
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guerler
parents:
diff changeset
989 >>> # blocking
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
990 >>> p.cpu_percent(interval=1)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
991 2.0
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
992 >>> # non-blocking (percentage since last call)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
993 >>> p.cpu_percent(interval=None)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
994 2.9
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
995 >>>
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
996 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
997 blocking = interval is not None and interval > 0.0
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
998 if interval is not None and interval < 0:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
999 raise ValueError("interval is not positive (got %r)" % interval)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1000 num_cpus = cpu_count() or 1
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1001
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1002 def timer():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1003 return _timer() * num_cpus
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1004
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1005 if blocking:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1006 st1 = timer()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1007 pt1 = self._proc.cpu_times()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1008 time.sleep(interval)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1009 st2 = timer()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1010 pt2 = self._proc.cpu_times()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1011 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1012 st1 = self._last_sys_cpu_times
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1013 pt1 = self._last_proc_cpu_times
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1014 st2 = timer()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1015 pt2 = self._proc.cpu_times()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1016 if st1 is None or pt1 is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1017 self._last_sys_cpu_times = st2
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1018 self._last_proc_cpu_times = pt2
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1019 return 0.0
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1020
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1021 delta_proc = (pt2.user - pt1.user) + (pt2.system - pt1.system)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1022 delta_time = st2 - st1
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1023 # reset values for next call in case of interval == None
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1024 self._last_sys_cpu_times = st2
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1025 self._last_proc_cpu_times = pt2
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1026
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1027 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1028 # This is the utilization split evenly between all CPUs.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1029 # E.g. a busy loop process on a 2-CPU-cores system at this
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1030 # point is reported as 50% instead of 100%.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1031 overall_cpus_percent = ((delta_proc / delta_time) * 100)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1032 except ZeroDivisionError:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1033 # interval was too low
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diff changeset
1034 return 0.0
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diff changeset
1035 else:
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diff changeset
1036 # Note 1:
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diff changeset
1037 # in order to emulate "top" we multiply the value for the num
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diff changeset
1038 # of CPU cores. This way the busy process will be reported as
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diff changeset
1039 # having 100% (or more) usage.
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parents:
diff changeset
1040 #
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diff changeset
1041 # Note 2:
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parents:
diff changeset
1042 # taskmgr.exe on Windows differs in that it will show 50%
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parents:
diff changeset
1043 # instead.
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diff changeset
1044 #
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diff changeset
1045 # Note 3:
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diff changeset
1046 # a percentage > 100 is legitimate as it can result from a
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diff changeset
1047 # process with multiple threads running on different CPU
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diff changeset
1048 # cores (top does the same), see:
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parents:
diff changeset
1049 # http://stackoverflow.com/questions/1032357
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parents:
diff changeset
1050 # https://github.com/giampaolo/psutil/issues/474
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diff changeset
1051 single_cpu_percent = overall_cpus_percent * num_cpus
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diff changeset
1052 return round(single_cpu_percent, 1)
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diff changeset
1053
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diff changeset
1054 @memoize_when_activated
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diff changeset
1055 def cpu_times(self):
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diff changeset
1056 """Return a (user, system, children_user, children_system)
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diff changeset
1057 namedtuple representing the accumulated process time, in
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diff changeset
1058 seconds.
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diff changeset
1059 This is similar to os.times() but per-process.
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diff changeset
1060 On macOS and Windows children_user and children_system are
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1061 always set to 0.
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1062 """
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1063 return self._proc.cpu_times()
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diff changeset
1064
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diff changeset
1065 @memoize_when_activated
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diff changeset
1066 def memory_info(self):
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1067 """Return a namedtuple with variable fields depending on the
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diff changeset
1068 platform, representing memory information about the process.
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diff changeset
1069
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diff changeset
1070 The "portable" fields available on all plaforms are `rss` and `vms`.
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1071
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diff changeset
1072 All numbers are expressed in bytes.
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1073 """
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1074 return self._proc.memory_info()
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diff changeset
1075
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diff changeset
1076 @_common.deprecated_method(replacement="memory_info")
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1077 def memory_info_ex(self):
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diff changeset
1078 return self.memory_info()
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diff changeset
1079
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1080 def memory_full_info(self):
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diff changeset
1081 """This method returns the same information as memory_info(),
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1082 plus, on some platform (Linux, macOS, Windows), also provides
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diff changeset
1083 additional metrics (USS, PSS and swap).
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1084 The additional metrics provide a better representation of actual
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diff changeset
1085 process memory usage.
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1086
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1087 Namely USS is the memory which is unique to a process and which
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1088 would be freed if the process was terminated right now.
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1089
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1090 It does so by passing through the whole process address.
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1091 As such it usually requires higher user privileges than
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1092 memory_info() and is considerably slower.
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1093 """
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1094 return self._proc.memory_full_info()
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diff changeset
1095
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1096 def memory_percent(self, memtype="rss"):
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1097 """Compare process memory to total physical system memory and
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diff changeset
1098 calculate process memory utilization as a percentage.
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diff changeset
1099 *memtype* argument is a string that dictates what type of
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1100 process memory you want to compare against (defaults to "rss").
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diff changeset
1101 The list of available strings can be obtained like this:
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1102
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1103 >>> psutil.Process().memory_info()._fields
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1104 ('rss', 'vms', 'shared', 'text', 'lib', 'data', 'dirty', 'uss', 'pss')
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1105 """
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1106 valid_types = list(_psplatform.pfullmem._fields)
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diff changeset
1107 if memtype not in valid_types:
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diff changeset
1108 raise ValueError("invalid memtype %r; valid types are %r" % (
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1109 memtype, tuple(valid_types)))
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diff changeset
1110 fun = self.memory_info if memtype in _psplatform.pmem._fields else \
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1111 self.memory_full_info
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diff changeset
1112 metrics = fun()
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1113 value = getattr(metrics, memtype)
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diff changeset
1114
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diff changeset
1115 # use cached value if available
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1116 total_phymem = _TOTAL_PHYMEM or virtual_memory().total
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diff changeset
1117 if not total_phymem > 0:
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diff changeset
1118 # we should never get here
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diff changeset
1119 raise ValueError(
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1120 "can't calculate process memory percent because "
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diff changeset
1121 "total physical system memory is not positive (%r)"
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diff changeset
1122 % total_phymem)
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diff changeset
1123 return (value / float(total_phymem)) * 100
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diff changeset
1124
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1125 if hasattr(_psplatform.Process, "memory_maps"):
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diff changeset
1126 def memory_maps(self, grouped=True):
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1127 """Return process' mapped memory regions as a list of namedtuples
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diff changeset
1128 whose fields are variable depending on the platform.
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diff changeset
1129
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1130 If *grouped* is True the mapped regions with the same 'path'
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diff changeset
1131 are grouped together and the different memory fields are summed.
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diff changeset
1132
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1133 If *grouped* is False every mapped region is shown as a single
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1134 entity and the namedtuple will also include the mapped region's
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diff changeset
1135 address space ('addr') and permission set ('perms').
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1136 """
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1137 it = self._proc.memory_maps()
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1138 if grouped:
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1139 d = {}
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1140 for tupl in it:
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1141 path = tupl[2]
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1142 nums = tupl[3:]
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1143 try:
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1144 d[path] = map(lambda x, y: x + y, d[path], nums)
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1145 except KeyError:
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1146 d[path] = nums
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diff changeset
1147 nt = _psplatform.pmmap_grouped
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diff changeset
1148 return [nt(path, *d[path]) for path in d] # NOQA
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diff changeset
1149 else:
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diff changeset
1150 nt = _psplatform.pmmap_ext
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diff changeset
1151 return [nt(*x) for x in it]
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diff changeset
1152
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1153 def open_files(self):
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1154 """Return files opened by process as a list of
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diff changeset
1155 (path, fd) namedtuples including the absolute file name
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diff changeset
1156 and file descriptor number.
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1157 """
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1158 return self._proc.open_files()
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diff changeset
1159
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diff changeset
1160 def connections(self, kind='inet'):
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diff changeset
1161 """Return socket connections opened by process as a list of
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diff changeset
1162 (fd, family, type, laddr, raddr, status) namedtuples.
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diff changeset
1163 The *kind* parameter filters for connections that match the
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parents:
diff changeset
1164 following criteria:
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diff changeset
1165
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diff changeset
1166 +------------+----------------------------------------------------+
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diff changeset
1167 | Kind Value | Connections using |
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parents:
diff changeset
1168 +------------+----------------------------------------------------+
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diff changeset
1169 | inet | IPv4 and IPv6 |
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diff changeset
1170 | inet4 | IPv4 |
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diff changeset
1171 | inet6 | IPv6 |
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diff changeset
1172 | tcp | TCP |
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diff changeset
1173 | tcp4 | TCP over IPv4 |
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diff changeset
1174 | tcp6 | TCP over IPv6 |
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diff changeset
1175 | udp | UDP |
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diff changeset
1176 | udp4 | UDP over IPv4 |
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diff changeset
1177 | udp6 | UDP over IPv6 |
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diff changeset
1178 | unix | UNIX socket (both UDP and TCP protocols) |
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diff changeset
1179 | all | the sum of all the possible families and protocols |
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diff changeset
1180 +------------+----------------------------------------------------+
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diff changeset
1181 """
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1182 return self._proc.connections(kind)
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diff changeset
1183
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1184 # --- signals
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diff changeset
1185
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diff changeset
1186 if POSIX:
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1187 def _send_signal(self, sig):
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diff changeset
1188 assert not self.pid < 0, self.pid
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diff changeset
1189 if self.pid == 0:
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diff changeset
1190 # see "man 2 kill"
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diff changeset
1191 raise ValueError(
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1192 "preventing sending signal to process with PID 0 as it "
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diff changeset
1193 "would affect every process in the process group of the "
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diff changeset
1194 "calling process (os.getpid()) instead of PID 0")
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diff changeset
1195 try:
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1196 os.kill(self.pid, sig)
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diff changeset
1197 except ProcessLookupError:
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diff changeset
1198 if OPENBSD and pid_exists(self.pid):
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diff changeset
1199 # We do this because os.kill() lies in case of
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diff changeset
1200 # zombie processes.
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diff changeset
1201 raise ZombieProcess(self.pid, self._name, self._ppid)
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diff changeset
1202 else:
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diff changeset
1203 self._gone = True
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diff changeset
1204 raise NoSuchProcess(self.pid, self._name)
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diff changeset
1205 except PermissionError:
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diff changeset
1206 raise AccessDenied(self.pid, self._name)
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diff changeset
1207
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diff changeset
1208 @_assert_pid_not_reused
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diff changeset
1209 def send_signal(self, sig):
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diff changeset
1210 """Send a signal *sig* to process pre-emptively checking
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diff changeset
1211 whether PID has been reused (see signal module constants) .
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diff changeset
1212 On Windows only SIGTERM is valid and is treated as an alias
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diff changeset
1213 for kill().
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diff changeset
1214 """
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diff changeset
1215 if POSIX:
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diff changeset
1216 self._send_signal(sig)
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diff changeset
1217 else: # pragma: no cover
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diff changeset
1218 self._proc.send_signal(sig)
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diff changeset
1219
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diff changeset
1220 @_assert_pid_not_reused
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diff changeset
1221 def suspend(self):
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diff changeset
1222 """Suspend process execution with SIGSTOP pre-emptively checking
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diff changeset
1223 whether PID has been reused.
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diff changeset
1224 On Windows this has the effect ot suspending all process threads.
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diff changeset
1225 """
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diff changeset
1226 if POSIX:
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diff changeset
1227 self._send_signal(signal.SIGSTOP)
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diff changeset
1228 else: # pragma: no cover
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diff changeset
1229 self._proc.suspend()
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diff changeset
1230
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diff changeset
1231 @_assert_pid_not_reused
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diff changeset
1232 def resume(self):
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diff changeset
1233 """Resume process execution with SIGCONT pre-emptively checking
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diff changeset
1234 whether PID has been reused.
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diff changeset
1235 On Windows this has the effect of resuming all process threads.
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diff changeset
1236 """
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diff changeset
1237 if POSIX:
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diff changeset
1238 self._send_signal(signal.SIGCONT)
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diff changeset
1239 else: # pragma: no cover
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diff changeset
1240 self._proc.resume()
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diff changeset
1241
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diff changeset
1242 @_assert_pid_not_reused
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diff changeset
1243 def terminate(self):
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diff changeset
1244 """Terminate the process with SIGTERM pre-emptively checking
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diff changeset
1245 whether PID has been reused.
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parents:
diff changeset
1246 On Windows this is an alias for kill().
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diff changeset
1247 """
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parents:
diff changeset
1248 if POSIX:
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diff changeset
1249 self._send_signal(signal.SIGTERM)
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diff changeset
1250 else: # pragma: no cover
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diff changeset
1251 self._proc.kill()
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diff changeset
1252
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diff changeset
1253 @_assert_pid_not_reused
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diff changeset
1254 def kill(self):
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parents:
diff changeset
1255 """Kill the current process with SIGKILL pre-emptively checking
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parents:
diff changeset
1256 whether PID has been reused.
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parents:
diff changeset
1257 """
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parents:
diff changeset
1258 if POSIX:
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diff changeset
1259 self._send_signal(signal.SIGKILL)
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diff changeset
1260 else: # pragma: no cover
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diff changeset
1261 self._proc.kill()
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diff changeset
1262
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diff changeset
1263 def wait(self, timeout=None):
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parents:
diff changeset
1264 """Wait for process to terminate and, if process is a children
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parents:
diff changeset
1265 of os.getpid(), also return its exit code, else None.
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diff changeset
1266 On Windows there's no such limitation (exit code is always
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parents:
diff changeset
1267 returned).
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diff changeset
1268
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diff changeset
1269 If the process is already terminated immediately return None
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parents:
diff changeset
1270 instead of raising NoSuchProcess.
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parents:
diff changeset
1271
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parents:
diff changeset
1272 If *timeout* (in seconds) is specified and process is still
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parents:
diff changeset
1273 alive raise TimeoutExpired.
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parents:
diff changeset
1274
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diff changeset
1275 To wait for multiple Process(es) use psutil.wait_procs().
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diff changeset
1276 """
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diff changeset
1277 if timeout is not None and not timeout >= 0:
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guerler
parents:
diff changeset
1278 raise ValueError("timeout must be a positive integer")
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parents:
diff changeset
1279 if self._exitcode is not _SENTINEL:
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guerler
parents:
diff changeset
1280 return self._exitcode
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parents:
diff changeset
1281 self._exitcode = self._proc.wait(timeout)
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parents:
diff changeset
1282 return self._exitcode
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parents:
diff changeset
1283
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parents:
diff changeset
1284
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parents:
diff changeset
1285 # The valid attr names which can be processed by Process.as_dict().
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guerler
parents:
diff changeset
1286 _as_dict_attrnames = set(
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parents:
diff changeset
1287 [x for x in dir(Process) if not x.startswith('_') and x not in
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guerler
parents:
diff changeset
1288 ['send_signal', 'suspend', 'resume', 'terminate', 'kill', 'wait',
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diff changeset
1289 'is_running', 'as_dict', 'parent', 'parents', 'children', 'rlimit',
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diff changeset
1290 'memory_info_ex', 'oneshot']])
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diff changeset
1291
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diff changeset
1292
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diff changeset
1293 # =====================================================================
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diff changeset
1294 # --- Popen class
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diff changeset
1295 # =====================================================================
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diff changeset
1296
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diff changeset
1297
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diff changeset
1298 class Popen(Process):
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diff changeset
1299 """Same as subprocess.Popen, but in addition it provides all
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diff changeset
1300 psutil.Process methods in a single class.
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diff changeset
1301 For the following methods which are common to both classes, psutil
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1302 implementation takes precedence:
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1303
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1304 * send_signal()
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diff changeset
1305 * terminate()
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diff changeset
1306 * kill()
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1307
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diff changeset
1308 This is done in order to avoid killing another process in case its
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parents:
diff changeset
1309 PID has been reused, fixing BPO-6973.
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1310
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1311 >>> import psutil
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1312 >>> from subprocess import PIPE
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diff changeset
1313 >>> p = psutil.Popen(["python", "-c", "print 'hi'"], stdout=PIPE)
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diff changeset
1314 >>> p.name()
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1315 'python'
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1316 >>> p.uids()
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1317 user(real=1000, effective=1000, saved=1000)
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diff changeset
1318 >>> p.username()
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1319 'giampaolo'
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diff changeset
1320 >>> p.communicate()
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diff changeset
1321 ('hi\n', None)
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diff changeset
1322 >>> p.terminate()
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diff changeset
1323 >>> p.wait(timeout=2)
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1324 0
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1325 >>>
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1326 """
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diff changeset
1327
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diff changeset
1328 def __init__(self, *args, **kwargs):
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1329 # Explicitly avoid to raise NoSuchProcess in case the process
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diff changeset
1330 # spawned by subprocess.Popen terminates too quickly, see:
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diff changeset
1331 # https://github.com/giampaolo/psutil/issues/193
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diff changeset
1332 self.__subproc = subprocess.Popen(*args, **kwargs)
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diff changeset
1333 self._init(self.__subproc.pid, _ignore_nsp=True)
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diff changeset
1334
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1335 def __dir__(self):
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diff changeset
1336 return sorted(set(dir(Popen) + dir(subprocess.Popen)))
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1337
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1338 def __enter__(self):
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1339 if hasattr(self.__subproc, '__enter__'):
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diff changeset
1340 self.__subproc.__enter__()
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1341 return self
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1342
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1343 def __exit__(self, *args, **kwargs):
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diff changeset
1344 if hasattr(self.__subproc, '__exit__'):
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diff changeset
1345 return self.__subproc.__exit__(*args, **kwargs)
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1346 else:
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1347 if self.stdout:
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diff changeset
1348 self.stdout.close()
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1349 if self.stderr:
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1350 self.stderr.close()
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1351 try:
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1352 # Flushing a BufferedWriter may raise an error.
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diff changeset
1353 if self.stdin:
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diff changeset
1354 self.stdin.close()
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1355 finally:
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diff changeset
1356 # Wait for the process to terminate, to avoid zombies.
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diff changeset
1357 self.wait()
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1358
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diff changeset
1359 def __getattribute__(self, name):
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diff changeset
1360 try:
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diff changeset
1361 return object.__getattribute__(self, name)
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diff changeset
1362 except AttributeError:
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1363 try:
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diff changeset
1364 return object.__getattribute__(self.__subproc, name)
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diff changeset
1365 except AttributeError:
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diff changeset
1366 raise AttributeError("%s instance has no attribute '%s'"
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diff changeset
1367 % (self.__class__.__name__, name))
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1368
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1369 def wait(self, timeout=None):
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1370 if self.__subproc.returncode is not None:
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1371 return self.__subproc.returncode
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diff changeset
1372 ret = super(Popen, self).wait(timeout)
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diff changeset
1373 self.__subproc.returncode = ret
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diff changeset
1374 return ret
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diff changeset
1375
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1376
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1377 # =====================================================================
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diff changeset
1378 # --- system processes related functions
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diff changeset
1379 # =====================================================================
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diff changeset
1380
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diff changeset
1381
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diff changeset
1382 def pids():
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diff changeset
1383 """Return a list of current running PIDs."""
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diff changeset
1384 global _LOWEST_PID
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diff changeset
1385 ret = sorted(_psplatform.pids())
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diff changeset
1386 _LOWEST_PID = ret[0]
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diff changeset
1387 return ret
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diff changeset
1388
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diff changeset
1389
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1390 def pid_exists(pid):
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diff changeset
1391 """Return True if given PID exists in the current process list.
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diff changeset
1392 This is faster than doing "pid in psutil.pids()" and
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parents:
diff changeset
1393 should be preferred.
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diff changeset
1394 """
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diff changeset
1395 if pid < 0:
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diff changeset
1396 return False
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diff changeset
1397 elif pid == 0 and POSIX:
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diff changeset
1398 # On POSIX we use os.kill() to determine PID existence.
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diff changeset
1399 # According to "man 2 kill" PID 0 has a special meaning
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diff changeset
1400 # though: it refers to <<every process in the process
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diff changeset
1401 # group of the calling process>> and that is not we want
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diff changeset
1402 # to do here.
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1403 return pid in pids()
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1404 else:
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diff changeset
1405 return _psplatform.pid_exists(pid)
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diff changeset
1406
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diff changeset
1407
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1408 _pmap = {}
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diff changeset
1409 _lock = threading.Lock()
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diff changeset
1410
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diff changeset
1411
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1412 def process_iter(attrs=None, ad_value=None):
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diff changeset
1413 """Return a generator yielding a Process instance for all
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diff changeset
1414 running processes.
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diff changeset
1415
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diff changeset
1416 Every new Process instance is only created once and then cached
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diff changeset
1417 into an internal table which is updated every time this is used.
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diff changeset
1418
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1419 Cached Process instances are checked for identity so that you're
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1420 safe in case a PID has been reused by another process, in which
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1421 case the cached instance is updated.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1422
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1423 The sorting order in which processes are yielded is based on
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1424 their PIDs.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1425
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1426 *attrs* and *ad_value* have the same meaning as in
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1427 Process.as_dict(). If *attrs* is specified as_dict() is called
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1428 and the resulting dict is stored as a 'info' attribute attached
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1429 to returned Process instance.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1430 If *attrs* is an empty list it will retrieve all process info
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1431 (slow).
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1432 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1433 def add(pid):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1434 proc = Process(pid)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1435 if attrs is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1436 proc.info = proc.as_dict(attrs=attrs, ad_value=ad_value)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1437 with _lock:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1438 _pmap[proc.pid] = proc
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1439 return proc
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1440
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1441 def remove(pid):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1442 with _lock:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1443 _pmap.pop(pid, None)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1444
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1445 a = set(pids())
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1446 b = set(_pmap.keys())
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1447 new_pids = a - b
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1448 gone_pids = b - a
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1449 for pid in gone_pids:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1450 remove(pid)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1451
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1452 with _lock:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1453 ls = sorted(list(_pmap.items()) +
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1454 list(dict.fromkeys(new_pids).items()))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1455
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1456 for pid, proc in ls:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1457 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1458 if proc is None: # new process
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1459 yield add(pid)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1460 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1461 # use is_running() to check whether PID has been reused by
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1462 # another process in which case yield a new Process instance
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1463 if proc.is_running():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1464 if attrs is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1465 proc.info = proc.as_dict(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1466 attrs=attrs, ad_value=ad_value)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1467 yield proc
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1468 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1469 yield add(pid)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1470 except NoSuchProcess:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1471 remove(pid)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1472 except AccessDenied:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1473 # Process creation time can't be determined hence there's
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1474 # no way to tell whether the pid of the cached process
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1475 # has been reused. Just return the cached version.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1476 if proc is None and pid in _pmap:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1477 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1478 yield _pmap[pid]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1479 except KeyError:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1480 # If we get here it is likely that 2 threads were
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1481 # using process_iter().
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1482 pass
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1483 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1484 raise
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1485
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1486
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1487 def wait_procs(procs, timeout=None, callback=None):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1488 """Convenience function which waits for a list of processes to
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1489 terminate.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1490
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1491 Return a (gone, alive) tuple indicating which processes
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1492 are gone and which ones are still alive.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1493
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1494 The gone ones will have a new *returncode* attribute indicating
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1495 process exit status (may be None).
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1496
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1497 *callback* is a function which gets called every time a process
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1498 terminates (a Process instance is passed as callback argument).
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1499
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1500 Function will return as soon as all processes terminate or when
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1501 *timeout* occurs.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1502 Differently from Process.wait() it will not raise TimeoutExpired if
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1503 *timeout* occurs.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1504
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1505 Typical use case is:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1506
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1507 - send SIGTERM to a list of processes
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1508 - give them some time to terminate
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1509 - send SIGKILL to those ones which are still alive
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1510
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1511 Example:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1512
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1513 >>> def on_terminate(proc):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1514 ... print("process {} terminated".format(proc))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1515 ...
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1516 >>> for p in procs:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1517 ... p.terminate()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1518 ...
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1519 >>> gone, alive = wait_procs(procs, timeout=3, callback=on_terminate)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1520 >>> for p in alive:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1521 ... p.kill()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1522 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1523 def check_gone(proc, timeout):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1524 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1525 returncode = proc.wait(timeout=timeout)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1526 except TimeoutExpired:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1527 pass
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1528 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1529 if returncode is not None or not proc.is_running():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1530 # Set new Process instance attribute.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1531 proc.returncode = returncode
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1532 gone.add(proc)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1533 if callback is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1534 callback(proc)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1535
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1536 if timeout is not None and not timeout >= 0:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1537 msg = "timeout must be a positive integer, got %s" % timeout
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1538 raise ValueError(msg)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1539 gone = set()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1540 alive = set(procs)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1541 if callback is not None and not callable(callback):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1542 raise TypeError("callback %r is not a callable" % callable)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1543 if timeout is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1544 deadline = _timer() + timeout
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1545
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1546 while alive:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1547 if timeout is not None and timeout <= 0:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1548 break
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1549 for proc in alive:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1550 # Make sure that every complete iteration (all processes)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1551 # will last max 1 sec.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1552 # We do this because we don't want to wait too long on a
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1553 # single process: in case it terminates too late other
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1554 # processes may disappear in the meantime and their PID
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1555 # reused.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1556 max_timeout = 1.0 / len(alive)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1557 if timeout is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1558 timeout = min((deadline - _timer()), max_timeout)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1559 if timeout <= 0:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1560 break
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1561 check_gone(proc, timeout)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1562 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1563 check_gone(proc, max_timeout)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1564 alive = alive - gone
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1565
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1566 if alive:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1567 # Last attempt over processes survived so far.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1568 # timeout == 0 won't make this function wait any further.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1569 for proc in alive:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1570 check_gone(proc, 0)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1571 alive = alive - gone
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1572
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1573 return (list(gone), list(alive))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1574
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1575
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1576 # =====================================================================
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1577 # --- CPU related functions
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1578 # =====================================================================
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1579
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1580
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1581 def cpu_count(logical=True):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1582 """Return the number of logical CPUs in the system (same as
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1583 os.cpu_count() in Python 3.4).
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1584
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1585 If *logical* is False return the number of physical cores only
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1586 (e.g. hyper thread CPUs are excluded).
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1587
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1588 Return None if undetermined.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1589
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1590 The return value is cached after first call.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1591 If desired cache can be cleared like this:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1592
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1593 >>> psutil.cpu_count.cache_clear()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1594 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1595 if logical:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1596 ret = _psplatform.cpu_count_logical()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1597 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1598 ret = _psplatform.cpu_count_physical()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1599 if ret is not None and ret < 1:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1600 ret = None
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1601 return ret
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1602
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1603
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1604 def cpu_times(percpu=False):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1605 """Return system-wide CPU times as a namedtuple.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1606 Every CPU time represents the seconds the CPU has spent in the
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1607 given mode. The namedtuple's fields availability varies depending on the
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1608 platform:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1609
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1610 - user
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1611 - system
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1612 - idle
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1613 - nice (UNIX)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1614 - iowait (Linux)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1615 - irq (Linux, FreeBSD)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1616 - softirq (Linux)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1617 - steal (Linux >= 2.6.11)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1618 - guest (Linux >= 2.6.24)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1619 - guest_nice (Linux >= 3.2.0)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1620
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1621 When *percpu* is True return a list of namedtuples for each CPU.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1622 First element of the list refers to first CPU, second element
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1623 to second CPU and so on.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1624 The order of the list is consistent across calls.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1625 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1626 if not percpu:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1627 return _psplatform.cpu_times()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1628 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1629 return _psplatform.per_cpu_times()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1630
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1631
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1632 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1633 _last_cpu_times = cpu_times()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1634 except Exception:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1635 # Don't want to crash at import time.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1636 _last_cpu_times = None
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1637
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1638 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1639 _last_per_cpu_times = cpu_times(percpu=True)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1640 except Exception:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1641 # Don't want to crash at import time.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1642 _last_per_cpu_times = None
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1643
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1644
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1645 def _cpu_tot_time(times):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1646 """Given a cpu_time() ntuple calculates the total CPU time
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1647 (including idle time).
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1648 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1649 tot = sum(times)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1650 if LINUX:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1651 # On Linux guest times are already accounted in "user" or
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1652 # "nice" times, so we subtract them from total.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1653 # Htop does the same. References:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1654 # https://github.com/giampaolo/psutil/pull/940
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1655 # http://unix.stackexchange.com/questions/178045
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1656 # https://github.com/torvalds/linux/blob/
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1657 # 447976ef4fd09b1be88b316d1a81553f1aa7cd07/kernel/sched/
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1658 # cputime.c#L158
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1659 tot -= getattr(times, "guest", 0) # Linux 2.6.24+
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1660 tot -= getattr(times, "guest_nice", 0) # Linux 3.2.0+
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1661 return tot
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1662
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1663
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1664 def _cpu_busy_time(times):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1665 """Given a cpu_time() ntuple calculates the busy CPU time.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1666 We do so by subtracting all idle CPU times.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1667 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1668 busy = _cpu_tot_time(times)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1669 busy -= times.idle
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1670 # Linux: "iowait" is time during which the CPU does not do anything
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1671 # (waits for IO to complete). On Linux IO wait is *not* accounted
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1672 # in "idle" time so we subtract it. Htop does the same.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1673 # References:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1674 # https://github.com/torvalds/linux/blob/
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1675 # 447976ef4fd09b1be88b316d1a81553f1aa7cd07/kernel/sched/cputime.c#L244
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1676 busy -= getattr(times, "iowait", 0)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1677 return busy
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guerler
parents:
diff changeset
1678
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parents:
diff changeset
1679
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guerler
parents:
diff changeset
1680 def _cpu_times_deltas(t1, t2):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1681 assert t1._fields == t2._fields, (t1, t2)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1682 field_deltas = []
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1683 for field in _psplatform.scputimes._fields:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1684 field_delta = getattr(t2, field) - getattr(t1, field)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1685 # CPU times are always supposed to increase over time
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1686 # or at least remain the same and that's because time
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1687 # cannot go backwards.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1688 # Surprisingly sometimes this might not be the case (at
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1689 # least on Windows and Linux), see:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1690 # https://github.com/giampaolo/psutil/issues/392
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1691 # https://github.com/giampaolo/psutil/issues/645
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1692 # https://github.com/giampaolo/psutil/issues/1210
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1693 # Trim negative deltas to zero to ignore decreasing fields.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1694 # top does the same. Reference:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1695 # https://gitlab.com/procps-ng/procps/blob/v3.3.12/top/top.c#L5063
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1696 field_delta = max(0, field_delta)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1697 field_deltas.append(field_delta)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1698 return _psplatform.scputimes(*field_deltas)
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guerler
parents:
diff changeset
1699
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parents:
diff changeset
1700
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parents:
diff changeset
1701 def cpu_percent(interval=None, percpu=False):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1702 """Return a float representing the current system-wide CPU
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1703 utilization as a percentage.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
1704
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parents:
diff changeset
1705 When *interval* is > 0.0 compares system CPU times elapsed before
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1706 and after the interval (blocking).
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
1707
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
1708 When *interval* is 0.0 or None compares system CPU times elapsed
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1709 since last call or module import, returning immediately (non
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1710 blocking). That means the first time this is called it will
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1711 return a meaningless 0.0 value which you should ignore.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1712 In this case is recommended for accuracy that this function be
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1713 called with at least 0.1 seconds between calls.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
1714
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parents:
diff changeset
1715 When *percpu* is True returns a list of floats representing the
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1716 utilization as a percentage for each CPU.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1717 First element of the list refers to first CPU, second element
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1718 to second CPU and so on.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1719 The order of the list is consistent across calls.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1720
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
1721 Examples:
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guerler
parents:
diff changeset
1722
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parents:
diff changeset
1723 >>> # blocking, system-wide
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1724 >>> psutil.cpu_percent(interval=1)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1725 2.0
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guerler
parents:
diff changeset
1726 >>>
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guerler
parents:
diff changeset
1727 >>> # blocking, per-cpu
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1728 >>> psutil.cpu_percent(interval=1, percpu=True)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1729 [2.0, 1.0]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1730 >>>
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1731 >>> # non-blocking (percentage since last call)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1732 >>> psutil.cpu_percent(interval=None)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1733 2.9
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guerler
parents:
diff changeset
1734 >>>
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1735 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1736 global _last_cpu_times
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1737 global _last_per_cpu_times
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1738 blocking = interval is not None and interval > 0.0
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1739 if interval is not None and interval < 0:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1740 raise ValueError("interval is not positive (got %r)" % interval)
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guerler
parents:
diff changeset
1741
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parents:
diff changeset
1742 def calculate(t1, t2):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1743 times_delta = _cpu_times_deltas(t1, t2)
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guerler
parents:
diff changeset
1744
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guerler
parents:
diff changeset
1745 all_delta = _cpu_tot_time(times_delta)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1746 busy_delta = _cpu_busy_time(times_delta)
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guerler
parents:
diff changeset
1747
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guerler
parents:
diff changeset
1748 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1749 busy_perc = (busy_delta / all_delta) * 100
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guerler
parents:
diff changeset
1750 except ZeroDivisionError:
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guerler
parents:
diff changeset
1751 return 0.0
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parents:
diff changeset
1752 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1753 return round(busy_perc, 1)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1754
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guerler
parents:
diff changeset
1755 # system-wide usage
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guerler
parents:
diff changeset
1756 if not percpu:
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guerler
parents:
diff changeset
1757 if blocking:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1758 t1 = cpu_times()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1759 time.sleep(interval)
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guerler
parents:
diff changeset
1760 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1761 t1 = _last_cpu_times
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1762 if t1 is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1763 # Something bad happened at import time. We'll
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1764 # get a meaningful result on the next call. See:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1765 # https://github.com/giampaolo/psutil/pull/715
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1766 t1 = cpu_times()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1767 _last_cpu_times = cpu_times()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1768 return calculate(t1, _last_cpu_times)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1769 # per-cpu usage
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1770 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1771 ret = []
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1772 if blocking:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1773 tot1 = cpu_times(percpu=True)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1774 time.sleep(interval)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1775 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1776 tot1 = _last_per_cpu_times
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1777 if tot1 is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1778 # Something bad happened at import time. We'll
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1779 # get a meaningful result on the next call. See:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1780 # https://github.com/giampaolo/psutil/pull/715
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1781 tot1 = cpu_times(percpu=True)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1782 _last_per_cpu_times = cpu_times(percpu=True)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1783 for t1, t2 in zip(tot1, _last_per_cpu_times):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1784 ret.append(calculate(t1, t2))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1785 return ret
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1786
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1787
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1788 # Use separate global vars for cpu_times_percent() so that it's
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1789 # independent from cpu_percent() and they can both be used within
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1790 # the same program.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1791 _last_cpu_times_2 = _last_cpu_times
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1792 _last_per_cpu_times_2 = _last_per_cpu_times
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1793
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1794
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1795 def cpu_times_percent(interval=None, percpu=False):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1796 """Same as cpu_percent() but provides utilization percentages
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1797 for each specific CPU time as is returned by cpu_times().
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1798 For instance, on Linux we'll get:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1799
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1800 >>> cpu_times_percent()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1801 cpupercent(user=4.8, nice=0.0, system=4.8, idle=90.5, iowait=0.0,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1802 irq=0.0, softirq=0.0, steal=0.0, guest=0.0, guest_nice=0.0)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1803 >>>
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1804
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1805 *interval* and *percpu* arguments have the same meaning as in
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1806 cpu_percent().
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1807 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1808 global _last_cpu_times_2
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1809 global _last_per_cpu_times_2
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1810 blocking = interval is not None and interval > 0.0
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1811 if interval is not None and interval < 0:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1812 raise ValueError("interval is not positive (got %r)" % interval)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1813
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1814 def calculate(t1, t2):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1815 nums = []
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1816 times_delta = _cpu_times_deltas(t1, t2)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1817 all_delta = _cpu_tot_time(times_delta)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1818 # "scale" is the value to multiply each delta with to get percentages.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1819 # We use "max" to avoid division by zero (if all_delta is 0, then all
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1820 # fields are 0 so percentages will be 0 too. all_delta cannot be a
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1821 # fraction because cpu times are integers)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1822 scale = 100.0 / max(1, all_delta)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1823 for field_delta in times_delta:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1824 field_perc = field_delta * scale
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1825 field_perc = round(field_perc, 1)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1826 # make sure we don't return negative values or values over 100%
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1827 field_perc = min(max(0.0, field_perc), 100.0)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1828 nums.append(field_perc)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1829 return _psplatform.scputimes(*nums)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1830
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1831 # system-wide usage
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1832 if not percpu:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1833 if blocking:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1834 t1 = cpu_times()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1835 time.sleep(interval)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1836 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1837 t1 = _last_cpu_times_2
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1838 if t1 is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1839 # Something bad happened at import time. We'll
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1840 # get a meaningful result on the next call. See:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1841 # https://github.com/giampaolo/psutil/pull/715
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1842 t1 = cpu_times()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1843 _last_cpu_times_2 = cpu_times()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1844 return calculate(t1, _last_cpu_times_2)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1845 # per-cpu usage
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1846 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1847 ret = []
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1848 if blocking:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1849 tot1 = cpu_times(percpu=True)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1850 time.sleep(interval)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1851 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1852 tot1 = _last_per_cpu_times_2
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1853 if tot1 is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1854 # Something bad happened at import time. We'll
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1855 # get a meaningful result on the next call. See:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1856 # https://github.com/giampaolo/psutil/pull/715
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1857 tot1 = cpu_times(percpu=True)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1858 _last_per_cpu_times_2 = cpu_times(percpu=True)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1859 for t1, t2 in zip(tot1, _last_per_cpu_times_2):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1860 ret.append(calculate(t1, t2))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1861 return ret
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1862
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1863
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1864 def cpu_stats():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1865 """Return CPU statistics."""
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1866 return _psplatform.cpu_stats()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1867
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1868
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1869 if hasattr(_psplatform, "cpu_freq"):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1870
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1871 def cpu_freq(percpu=False):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1872 """Return CPU frequency as a nameduple including current,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1873 min and max frequency expressed in Mhz.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1874
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1875 If *percpu* is True and the system supports per-cpu frequency
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1876 retrieval (Linux only) a list of frequencies is returned for
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1877 each CPU. If not a list with one element is returned.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1878 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1879 ret = _psplatform.cpu_freq()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1880 if percpu:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1881 return ret
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1882 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1883 num_cpus = float(len(ret))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1884 if num_cpus == 0:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1885 return None
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1886 elif num_cpus == 1:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1887 return ret[0]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1888 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1889 currs, mins, maxs = 0.0, 0.0, 0.0
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1890 set_none = False
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1891 for cpu in ret:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1892 currs += cpu.current
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1893 # On Linux if /proc/cpuinfo is used min/max are set
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1894 # to None.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1895 if LINUX and cpu.min is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1896 set_none = True
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1897 continue
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1898 mins += cpu.min
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1899 maxs += cpu.max
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1900
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1901 current = currs / num_cpus
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1902
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1903 if set_none:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1904 min_ = max_ = None
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1905 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1906 min_ = mins / num_cpus
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1907 max_ = maxs / num_cpus
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1908
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1909 return _common.scpufreq(current, min_, max_)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1910
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1911 __all__.append("cpu_freq")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1912
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1913
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1914 if hasattr(os, "getloadavg") or hasattr(_psplatform, "getloadavg"):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1915 # Perform this hasattr check once on import time to either use the
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1916 # platform based code or proxy straight from the os module.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1917 if hasattr(os, "getloadavg"):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1918 getloadavg = os.getloadavg
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1919 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1920 getloadavg = _psplatform.getloadavg
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1921
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1922 __all__.append("getloadavg")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1923
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1924
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1925 # =====================================================================
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1926 # --- system memory related functions
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1927 # =====================================================================
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1928
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1929
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1930 def virtual_memory():
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1931 """Return statistics about system memory usage as a namedtuple
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1932 including the following fields, expressed in bytes:
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1933
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1934 - total:
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1935 total physical memory available.
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1936
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1937 - available:
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1938 the memory that can be given instantly to processes without the
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1939 system going into swap.
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1940 This is calculated by summing different memory values depending
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1941 on the platform and it is supposed to be used to monitor actual
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1942 memory usage in a cross platform fashion.
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1943
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1944 - percent:
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1945 the percentage usage calculated as (total - available) / total * 100
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1946
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1947 - used:
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1948 memory used, calculated differently depending on the platform and
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1949 designed for informational purposes only:
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1950 macOS: active + wired
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1951 BSD: active + wired + cached
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1952 Linux: total - free
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1953
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1954 - free:
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1955 memory not being used at all (zeroed) that is readily available;
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1956 note that this doesn't reflect the actual memory available
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1957 (use 'available' instead)
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1958
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1959 Platform-specific fields:
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1960
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1961 - active (UNIX):
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1962 memory currently in use or very recently used, and so it is in RAM.
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1963
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1964 - inactive (UNIX):
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1965 memory that is marked as not used.
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1966
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1967 - buffers (BSD, Linux):
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1968 cache for things like file system metadata.
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1969
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1970 - cached (BSD, macOS):
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1971 cache for various things.
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1972
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1973 - wired (macOS, BSD):
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1974 memory that is marked to always stay in RAM. It is never moved to disk.
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1975
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1976 - shared (BSD):
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1977 memory that may be simultaneously accessed by multiple processes.
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1978
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1979 The sum of 'used' and 'available' does not necessarily equal total.
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1980 On Windows 'available' and 'free' are the same.
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1981 """
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1982 global _TOTAL_PHYMEM
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1983 ret = _psplatform.virtual_memory()
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1984 # cached for later use in Process.memory_percent()
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1985 _TOTAL_PHYMEM = ret.total
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1986 return ret
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1987
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1988
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1989 def swap_memory():
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1990 """Return system swap memory statistics as a namedtuple including
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1991 the following fields:
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1992
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1993 - total: total swap memory in bytes
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1994 - used: used swap memory in bytes
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1995 - free: free swap memory in bytes
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1996 - percent: the percentage usage
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1997 - sin: no. of bytes the system has swapped in from disk (cumulative)
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1998 - sout: no. of bytes the system has swapped out from disk (cumulative)
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1999
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2000 'sin' and 'sout' on Windows are meaningless and always set to 0.
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2001 """
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2002 return _psplatform.swap_memory()
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2003
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2004
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2005 # =====================================================================
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2006 # --- disks/paritions related functions
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2007 # =====================================================================
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2008
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2009
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2010 def disk_usage(path):
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2011 """Return disk usage statistics about the given *path* as a
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2012 namedtuple including total, used and free space expressed in bytes
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2013 plus the percentage usage.
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2014 """
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2015 return _psplatform.disk_usage(path)
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2016
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2017
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2018 def disk_partitions(all=False):
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2019 """Return mounted partitions as a list of
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2020 (device, mountpoint, fstype, opts) namedtuple.
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2021 'opts' field is a raw string separated by commas indicating mount
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2022 options which may vary depending on the platform.
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2023
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2024 If *all* parameter is False return physical devices only and ignore
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2025 all others.
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2026 """
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2027 return _psplatform.disk_partitions(all)
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2028
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2029
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2030 def disk_io_counters(perdisk=False, nowrap=True):
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2031 """Return system disk I/O statistics as a namedtuple including
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diff changeset
2032 the following fields:
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2033
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2034 - read_count: number of reads
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2035 - write_count: number of writes
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2036 - read_bytes: number of bytes read
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2037 - write_bytes: number of bytes written
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2038 - read_time: time spent reading from disk (in ms)
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2039 - write_time: time spent writing to disk (in ms)
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2040
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2041 Platform specific:
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2042
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2043 - busy_time: (Linux, FreeBSD) time spent doing actual I/Os (in ms)
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2044 - read_merged_count (Linux): number of merged reads
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2045 - write_merged_count (Linux): number of merged writes
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2046
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2047 If *perdisk* is True return the same information for every
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2048 physical disk installed on the system as a dictionary
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2049 with partition names as the keys and the namedtuple
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2050 described above as the values.
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2051
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2052 If *nowrap* is True it detects and adjust the numbers which overflow
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2053 and wrap (restart from 0) and add "old value" to "new value" so that
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2054 the returned numbers will always be increasing or remain the same,
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2055 but never decrease.
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2056 "disk_io_counters.cache_clear()" can be used to invalidate the
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2057 cache.
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2058
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2059 On recent Windows versions 'diskperf -y' command may need to be
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2060 executed first otherwise this function won't find any disk.
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guerler
parents:
diff changeset
2061 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2062 kwargs = dict(perdisk=perdisk) if LINUX else {}
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2063 rawdict = _psplatform.disk_io_counters(**kwargs)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2064 if not rawdict:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2065 return {} if perdisk else None
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2066 if nowrap:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2067 rawdict = _wrap_numbers(rawdict, 'psutil.disk_io_counters')
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2068 nt = getattr(_psplatform, "sdiskio", _common.sdiskio)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2069 if perdisk:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2070 for disk, fields in rawdict.items():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2071 rawdict[disk] = nt(*fields)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2072 return rawdict
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2073 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2074 return nt(*[sum(x) for x in zip(*rawdict.values())])
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2075
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2076
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2077 disk_io_counters.cache_clear = functools.partial(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2078 _wrap_numbers.cache_clear, 'psutil.disk_io_counters')
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2079 disk_io_counters.cache_clear.__doc__ = "Clears nowrap argument cache"
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2080
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2081
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2082 # =====================================================================
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2083 # --- network related functions
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2084 # =====================================================================
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2085
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2086
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2087 def net_io_counters(pernic=False, nowrap=True):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2088 """Return network I/O statistics as a namedtuple including
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2089 the following fields:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2090
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2091 - bytes_sent: number of bytes sent
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2092 - bytes_recv: number of bytes received
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2093 - packets_sent: number of packets sent
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2094 - packets_recv: number of packets received
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2095 - errin: total number of errors while receiving
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2096 - errout: total number of errors while sending
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2097 - dropin: total number of incoming packets which were dropped
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2098 - dropout: total number of outgoing packets which were dropped
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2099 (always 0 on macOS and BSD)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2100
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2101 If *pernic* is True return the same information for every
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2102 network interface installed on the system as a dictionary
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2103 with network interface names as the keys and the namedtuple
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2104 described above as the values.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2105
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2106 If *nowrap* is True it detects and adjust the numbers which overflow
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2107 and wrap (restart from 0) and add "old value" to "new value" so that
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2108 the returned numbers will always be increasing or remain the same,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2109 but never decrease.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2110 "disk_io_counters.cache_clear()" can be used to invalidate the
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2111 cache.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2112 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2113 rawdict = _psplatform.net_io_counters()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2114 if not rawdict:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2115 return {} if pernic else None
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2116 if nowrap:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2117 rawdict = _wrap_numbers(rawdict, 'psutil.net_io_counters')
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2118 if pernic:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2119 for nic, fields in rawdict.items():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2120 rawdict[nic] = _common.snetio(*fields)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2121 return rawdict
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2122 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2123 return _common.snetio(*[sum(x) for x in zip(*rawdict.values())])
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2124
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2125
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2126 net_io_counters.cache_clear = functools.partial(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2127 _wrap_numbers.cache_clear, 'psutil.net_io_counters')
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2128 net_io_counters.cache_clear.__doc__ = "Clears nowrap argument cache"
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2129
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2130
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2131 def net_connections(kind='inet'):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2132 """Return system-wide socket connections as a list of
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2133 (fd, family, type, laddr, raddr, status, pid) namedtuples.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2134 In case of limited privileges 'fd' and 'pid' may be set to -1
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2135 and None respectively.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2136 The *kind* parameter filters for connections that fit the
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2137 following criteria:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2138
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2139 +------------+----------------------------------------------------+
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2140 | Kind Value | Connections using |
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2141 +------------+----------------------------------------------------+
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2142 | inet | IPv4 and IPv6 |
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2143 | inet4 | IPv4 |
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2144 | inet6 | IPv6 |
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2145 | tcp | TCP |
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2146 | tcp4 | TCP over IPv4 |
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2147 | tcp6 | TCP over IPv6 |
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2148 | udp | UDP |
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2149 | udp4 | UDP over IPv4 |
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2150 | udp6 | UDP over IPv6 |
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2151 | unix | UNIX socket (both UDP and TCP protocols) |
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2152 | all | the sum of all the possible families and protocols |
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2153 +------------+----------------------------------------------------+
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2154
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2155 On macOS this function requires root privileges.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2156 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2157 return _psplatform.net_connections(kind)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2158
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2159
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2160 def net_if_addrs():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2161 """Return the addresses associated to each NIC (network interface
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2162 card) installed on the system as a dictionary whose keys are the
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2163 NIC names and value is a list of namedtuples for each address
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2164 assigned to the NIC. Each namedtuple includes 5 fields:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2165
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2166 - family: can be either socket.AF_INET, socket.AF_INET6 or
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2167 psutil.AF_LINK, which refers to a MAC address.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2168 - address: is the primary address and it is always set.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2169 - netmask: and 'broadcast' and 'ptp' may be None.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2170 - ptp: stands for "point to point" and references the
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2171 destination address on a point to point interface
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2172 (typically a VPN).
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2173 - broadcast: and *ptp* are mutually exclusive.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2174
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2175 Note: you can have more than one address of the same family
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2176 associated with each interface.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2177 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2178 has_enums = sys.version_info >= (3, 4)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2179 if has_enums:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2180 import socket
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2181 rawlist = _psplatform.net_if_addrs()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2182 rawlist.sort(key=lambda x: x[1]) # sort by family
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2183 ret = collections.defaultdict(list)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2184 for name, fam, addr, mask, broadcast, ptp in rawlist:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2185 if has_enums:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2186 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2187 fam = socket.AddressFamily(fam)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2188 except ValueError:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2189 if WINDOWS and fam == -1:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2190 fam = _psplatform.AF_LINK
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2191 elif (hasattr(_psplatform, "AF_LINK") and
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2192 _psplatform.AF_LINK == fam):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2193 # Linux defines AF_LINK as an alias for AF_PACKET.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2194 # We re-set the family here so that repr(family)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2195 # will show AF_LINK rather than AF_PACKET
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2196 fam = _psplatform.AF_LINK
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2197 if fam == _psplatform.AF_LINK:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2198 # The underlying C function may return an incomplete MAC
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2199 # address in which case we fill it with null bytes, see:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2200 # https://github.com/giampaolo/psutil/issues/786
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2201 separator = ":" if POSIX else "-"
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2202 while addr.count(separator) < 5:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2203 addr += "%s00" % separator
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2204 ret[name].append(_common.snicaddr(fam, addr, mask, broadcast, ptp))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2205 return dict(ret)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2206
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guerler
parents:
diff changeset
2207
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2208 def net_if_stats():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2209 """Return information about each NIC (network interface card)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2210 installed on the system as a dictionary whose keys are the
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2211 NIC names and value is a namedtuple with the following fields:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2212
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guerler
parents:
diff changeset
2213 - isup: whether the interface is up (bool)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2214 - duplex: can be either NIC_DUPLEX_FULL, NIC_DUPLEX_HALF or
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2215 NIC_DUPLEX_UNKNOWN
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2216 - speed: the NIC speed expressed in mega bits (MB); if it can't
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2217 be determined (e.g. 'localhost') it will be set to 0.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2218 - mtu: the maximum transmission unit expressed in bytes.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2219 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2220 return _psplatform.net_if_stats()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2221
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2222
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2223 # =====================================================================
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guerler
parents:
diff changeset
2224 # --- sensors
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2225 # =====================================================================
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2226
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guerler
parents:
diff changeset
2227
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2228 # Linux, macOS
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2229 if hasattr(_psplatform, "sensors_temperatures"):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2230
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2231 def sensors_temperatures(fahrenheit=False):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2232 """Return hardware temperatures. Each entry is a namedtuple
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2233 representing a certain hardware sensor (it may be a CPU, an
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2234 hard disk or something else, depending on the OS and its
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2235 configuration).
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2236 All temperatures are expressed in celsius unless *fahrenheit*
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2237 is set to True.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2238 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2239 def convert(n):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2240 if n is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2241 return (float(n) * 9 / 5) + 32 if fahrenheit else n
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2242
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2243 ret = collections.defaultdict(list)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2244 rawdict = _psplatform.sensors_temperatures()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2245
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2246 for name, values in rawdict.items():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2247 while values:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2248 label, current, high, critical = values.pop(0)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2249 current = convert(current)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2250 high = convert(high)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2251 critical = convert(critical)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2252
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2253 if high and not critical:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2254 critical = high
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2255 elif critical and not high:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2256 high = critical
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2257
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2258 ret[name].append(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2259 _common.shwtemp(label, current, high, critical))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2260
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2261 return dict(ret)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2262
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2263 __all__.append("sensors_temperatures")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2264
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2265
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2266 # Linux
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2267 if hasattr(_psplatform, "sensors_fans"):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2268
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2269 def sensors_fans():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2270 """Return fans speed. Each entry is a namedtuple
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2271 representing a certain hardware sensor.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2272 All speed are expressed in RPM (rounds per minute).
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2273 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2274 return _psplatform.sensors_fans()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2275
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2276 __all__.append("sensors_fans")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2277
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2278
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2279 # Linux, Windows, FreeBSD, macOS
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2280 if hasattr(_psplatform, "sensors_battery"):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2281
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2282 def sensors_battery():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2283 """Return battery information. If no battery is installed
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2284 returns None.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2285
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2286 - percent: battery power left as a percentage.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2287 - secsleft: a rough approximation of how many seconds are left
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2288 before the battery runs out of power. May be
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2289 POWER_TIME_UNLIMITED or POWER_TIME_UNLIMITED.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2290 - power_plugged: True if the AC power cable is connected.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2291 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2292 return _psplatform.sensors_battery()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2293
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2294 __all__.append("sensors_battery")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2295
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2296
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2297 # =====================================================================
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2298 # --- other system related functions
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2299 # =====================================================================
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2300
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2301
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2302 def boot_time():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2303 """Return the system boot time expressed in seconds since the epoch."""
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2304 # Note: we are not caching this because it is subject to
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2305 # system clock updates.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2306 return _psplatform.boot_time()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2307
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2308
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2309 def users():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2310 """Return users currently connected on the system as a list of
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2311 namedtuples including the following fields.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2312
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2313 - user: the name of the user
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2314 - terminal: the tty or pseudo-tty associated with the user, if any.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2315 - host: the host name associated with the entry, if any.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
2316 - started: the creation time as a floating point number expressed in
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
2317 seconds since the epoch.
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diff changeset
2318 """
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parents:
diff changeset
2319 return _psplatform.users()
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parents:
diff changeset
2320
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diff changeset
2321
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diff changeset
2322 # =====================================================================
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
2323 # --- Windows services
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
2324 # =====================================================================
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diff changeset
2325
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diff changeset
2326
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diff changeset
2327 if WINDOWS:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
2328
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2329 def win_service_iter():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
2330 """Return a generator yielding a WindowsService instance for all
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
2331 Windows services installed.
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diff changeset
2332 """
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diff changeset
2333 return _psplatform.win_service_iter()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
2334
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diff changeset
2335 def win_service_get(name):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
2336 """Get a Windows service by *name*.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
2337 Raise NoSuchProcess if no service with such name exists.
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diff changeset
2338 """
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diff changeset
2339 return _psplatform.win_service_get(name)
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diff changeset
2340
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2341
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2342 # =====================================================================
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diff changeset
2343
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2344
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2345 def test(): # pragma: no cover
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
2346 from ._common import bytes2human
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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2347 from ._compat import get_terminal_size
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diff changeset
2348
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2349 today_day = datetime.date.today()
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parents:
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2350 templ = "%-10s %5s %5s %7s %7s %5s %6s %6s %6s %s"
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2351 attrs = ['pid', 'memory_percent', 'name', 'cmdline', 'cpu_times',
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diff changeset
2352 'create_time', 'memory_info', 'status', 'nice', 'username']
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parents:
diff changeset
2353 print(templ % ("USER", "PID", "%MEM", "VSZ", "RSS", "NICE", # NOQA
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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2354 "STATUS", "START", "TIME", "CMDLINE"))
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parents:
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2355 for p in process_iter(attrs, ad_value=None):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
2356 if p.info['create_time']:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
2357 ctime = datetime.datetime.fromtimestamp(p.info['create_time'])
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parents:
diff changeset
2358 if ctime.date() == today_day:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
2359 ctime = ctime.strftime("%H:%M")
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diff changeset
2360 else:
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diff changeset
2361 ctime = ctime.strftime("%b%d")
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2362 else:
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diff changeset
2363 ctime = ''
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diff changeset
2364 if p.info['cpu_times']:
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parents:
diff changeset
2365 cputime = time.strftime("%M:%S",
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parents:
diff changeset
2366 time.localtime(sum(p.info['cpu_times'])))
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diff changeset
2367 else:
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diff changeset
2368 cputime = ''
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diff changeset
2369
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2370 user = p.info['username'] or ''
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diff changeset
2371 if not user and POSIX:
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2372 try:
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2373 user = p.uids()[0]
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2374 except Error:
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diff changeset
2375 pass
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diff changeset
2376 if user and WINDOWS and '\\' in user:
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diff changeset
2377 user = user.split('\\')[1]
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diff changeset
2378 user = user[:9]
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diff changeset
2379 vms = bytes2human(p.info['memory_info'].vms) if \
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diff changeset
2380 p.info['memory_info'] is not None else ''
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diff changeset
2381 rss = bytes2human(p.info['memory_info'].rss) if \
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diff changeset
2382 p.info['memory_info'] is not None else ''
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parents:
diff changeset
2383 memp = round(p.info['memory_percent'], 1) if \
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parents:
diff changeset
2384 p.info['memory_percent'] is not None else ''
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parents:
diff changeset
2385 nice = int(p.info['nice']) if p.info['nice'] else ''
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diff changeset
2386 if p.info['cmdline']:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
2387 cmdline = ' '.join(p.info['cmdline'])
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diff changeset
2388 else:
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diff changeset
2389 cmdline = p.info['name']
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parents:
diff changeset
2390 status = p.info['status'][:5] if p.info['status'] else ''
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diff changeset
2391
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2392 line = templ % (
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diff changeset
2393 user[:10],
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2394 p.info['pid'],
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diff changeset
2395 memp,
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diff changeset
2396 vms,
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diff changeset
2397 rss,
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diff changeset
2398 nice,
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diff changeset
2399 status,
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diff changeset
2400 ctime,
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diff changeset
2401 cputime,
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diff changeset
2402 cmdline)
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diff changeset
2403 print(line[:get_terminal_size()[0]]) # NOQA
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diff changeset
2404
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diff changeset
2405
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diff changeset
2406 del memoize_when_activated, division
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parents:
diff changeset
2407 if sys.version_info[0] < 3:
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parents:
diff changeset
2408 del num, x
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diff changeset
2409
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diff changeset
2410 if __name__ == "__main__":
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parents:
diff changeset
2411 test()