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comparison PsiCLASS-1.0.2/samtools-0.1.19/knetfile.h @ 0:903fc43d6227 draft default tip

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author lsong10
date Fri, 26 Mar 2021 16:52:45 +0000
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1 #ifndef KNETFILE_H
2 #define KNETFILE_H
3
4 #include <stdint.h>
5 #include <fcntl.h>
6
7 #ifndef _WIN32
8 #define netread(fd, ptr, len) read(fd, ptr, len)
9 #define netwrite(fd, ptr, len) write(fd, ptr, len)
10 #define netclose(fd) close(fd)
11 #else
12 #include <winsock2.h>
13 #define netread(fd, ptr, len) recv(fd, ptr, len, 0)
14 #define netwrite(fd, ptr, len) send(fd, ptr, len, 0)
15 #define netclose(fd) closesocket(fd)
16 #endif
17
18 // FIXME: currently I/O is unbuffered
19
20 #define KNF_TYPE_LOCAL 1
21 #define KNF_TYPE_FTP 2
22 #define KNF_TYPE_HTTP 3
23
24 typedef struct knetFile_s {
25 int type, fd;
26 int64_t offset;
27 char *host, *port;
28
29 // the following are for FTP only
30 int ctrl_fd, pasv_ip[4], pasv_port, max_response, no_reconnect, is_ready;
31 char *response, *retr, *size_cmd;
32 int64_t seek_offset; // for lazy seek
33 int64_t file_size;
34
35 // the following are for HTTP only
36 char *path, *http_host;
37 } knetFile;
38
39 #define knet_tell(fp) ((fp)->offset)
40 #define knet_fileno(fp) ((fp)->fd)
41
42 #ifdef __cplusplus
43 extern "C" {
44 #endif
45
46 #ifdef _WIN32
47 int knet_win32_init();
48 void knet_win32_destroy();
49 #endif
50
51 knetFile *knet_open(const char *fn, const char *mode);
52
53 /*
54 This only works with local files.
55 */
56 knetFile *knet_dopen(int fd, const char *mode);
57
58 /*
59 If ->is_ready==0, this routine updates ->fd; otherwise, it simply
60 reads from ->fd.
61 */
62 off_t knet_read(knetFile *fp, void *buf, off_t len);
63
64 /*
65 This routine only sets ->offset and ->is_ready=0. It does not
66 communicate with the FTP server.
67 */
68 off_t knet_seek(knetFile *fp, int64_t off, int whence);
69 int knet_close(knetFile *fp);
70
71 #ifdef __cplusplus
72 }
73 #endif
74
75 #endif