annotate ezBAMQC/src/htslib/cram/files.c @ 20:9de3bbec2479 draft default tip

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author youngkim
date Thu, 31 Mar 2016 10:10:37 -0400
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1 /*
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2 Copyright (c) 1994, 1996-1997, 2000, 2003 MEDICAL RESEARCH COUNCIL
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3 All rights reserved
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4
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5 Redistribution and use in source and binary forms, with or without
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6 modification, are permitted provided that the following conditions are met:
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7
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8 1 Redistributions of source code must retain the above copyright notice,
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9 this list of conditions and the following disclaimer.
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10
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11 2 Redistributions in binary form must reproduce the above copyright notice,
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12 this list of conditions and the following disclaimer in the documentation
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13 and/or other materials provided with the distribution.
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14
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15 3 Neither the name of the MEDICAL RESEARCH COUNCIL, THE LABORATORY OF
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16 MOLECULAR BIOLOGY nor the names of its contributors may be used to endorse or
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17 promote products derived from this software without specific prior written
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18 permission.
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19
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20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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21 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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22 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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23 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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24 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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25 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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26 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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27 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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28 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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29 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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30 */
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31
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32 #ifdef HAVE_CONFIG_H
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33 #include "io_lib_config.h"
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34 #endif
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35
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36 #include "cram/misc.h"
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37
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38 #include <sys/types.h>
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39 #include <sys/stat.h>
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40 /* Alliant's Concentrix <sys/stat.h> is hugely deficient */
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41 /* Define things we require in this program */
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42 /* Methinks S_IFMT and S_IFDIR aren't defined in POSIX */
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43 #ifndef S_ISDIR
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44 #define S_ISDIR(m) (((m)&S_IFMT) == S_IFDIR)
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45 #endif /*!S_ISDIR*/
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46 #ifndef S_ISREG
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47 #define S_ISREG(m) (((m)&S_IFMT) == S_IFREG)
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48 #endif /*!S_ISREG*/
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49
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50 int is_directory(char * fn)
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51 {
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52 struct stat buf;
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53 if ( stat(fn,&buf) ) return 0;
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54 return S_ISDIR(buf.st_mode);
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55 }
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56
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57 int is_file(char * fn)
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58 {
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59 struct stat buf;
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60 if ( stat(fn,&buf) ) return 0;
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61 return S_ISREG(buf.st_mode);
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62 }
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63
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64 int file_exists(char * fn)
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65 {
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66 struct stat buf;
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67 return ( stat(fn,&buf) == 0);
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68 }
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69
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70 int file_size(char * fn)
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71 {
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72 struct stat buf;
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73 if ( stat(fn,&buf) != 0) return 0;
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74 return buf.st_size;
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75 }
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76