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Comparing libeio/eio.h (file contents):
Revision 1.23 by root, Fri Jun 12 16:48:08 2009 UTC vs.
Revision 1.26 by root, Thu Jan 7 18:08:21 2010 UTC

1/* 1/*
2 * libeio API header 2 * libeio API header
3 * 3 *
4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libeio@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libeio@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
58 58
59#ifndef EIO_STRUCT_STAT 59#ifndef EIO_STRUCT_STAT
60# define EIO_STRUCT_STAT struct stat 60# define EIO_STRUCT_STAT struct stat
61#endif 61#endif
62 62
63#ifndef EIO_STRUCT_STATVFS
64# define EIO_STRUCT_STATVFS struct statvfs
65#endif
66
63/* for readdir */ 67/* for readdir */
64 68
65/* eio_readdir flags */ 69/* eio_readdir flags */
66enum { 70enum {
67 EIO_READDIR_DENTS = 0x01, /* ptr2 contains eio_dirents, not just the (unsorted) names */ 71 EIO_READDIR_DENTS = 0x01, /* ptr2 contains eio_dirents, not just the (unsorted) names */
… …
93 EIO_DT_WHT = 14, 97 EIO_DT_WHT = 14,
94 EIO_DT_MAX = 15 /* highest DT_VALUE ever, hopefully */ 98 EIO_DT_MAX = 15 /* highest DT_VALUE ever, hopefully */
95}; 99};
96 100
97struct eio_dirent { 101struct eio_dirent {
98 char *name; 102 int nameofs; /* offset of null-terminated name string in (char *)req->ptr2 */
99 ino_t inode; 103 unsigned short namelen; /* size of filename without trailing 0 */
100 unsigned short namelen; 104 unsigned char type; /* one of EIO_DT_* */
101 unsigned char type;
102 signed char score; /* internal use */ 105 signed char score; /* internal use */
103 /* 0-4 bytes padding */ 106 ino_t inode; /* the inode number, if available, otherwise unspecified */
107};
108
109/* eio_msync flags */
110enum {
111 EIO_MS_ASYNC = 1,
112 EIO_MS_INVALIDATE = 2,
113 EIO_MS_SYNC = 4
114};
115
116/* eio_mtouch flags */
117
118enum {
119 EIO_MT_MODIFY = 1
104}; 120};
105 121
106/* eio_sync_file_range flags */ 122/* eio_sync_file_range flags */
107 123
108enum { 124enum {
… …
119 EIO_CUSTOM, 135 EIO_CUSTOM,
120 EIO_OPEN, EIO_CLOSE, EIO_DUP2, 136 EIO_OPEN, EIO_CLOSE, EIO_DUP2,
121 EIO_READ, EIO_WRITE, 137 EIO_READ, EIO_WRITE,
122 EIO_READAHEAD, EIO_SENDFILE, 138 EIO_READAHEAD, EIO_SENDFILE,
123 EIO_STAT, EIO_LSTAT, EIO_FSTAT, 139 EIO_STAT, EIO_LSTAT, EIO_FSTAT,
140 EIO_STATVFS, EIO_FSTATVFS,
124 EIO_TRUNCATE, EIO_FTRUNCATE, 141 EIO_TRUNCATE, EIO_FTRUNCATE,
125 EIO_UTIME, EIO_FUTIME, 142 EIO_UTIME, EIO_FUTIME,
126 EIO_CHMOD, EIO_FCHMOD, 143 EIO_CHMOD, EIO_FCHMOD,
127 EIO_CHOWN, EIO_FCHOWN, 144 EIO_CHOWN, EIO_FCHOWN,
128 EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, 145 EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC,
… …
142 eio_req volatile *next; /* private ETP */ 159 eio_req volatile *next; /* private ETP */
143 160
144 ssize_t result; /* result of syscall, e.g. result = read (... */ 161 ssize_t result; /* result of syscall, e.g. result = read (... */
145 off_t offs; /* read, write, truncate, readahead, sync_file_range: file offset */ 162 off_t offs; /* read, write, truncate, readahead, sync_file_range: file offset */
146 size_t size; /* read, write, readahead, sendfile, msync, sync_file_range: length */ 163 size_t size; /* read, write, readahead, sendfile, msync, sync_file_range: length */
147 void *ptr1; /* all applicable requests: pathname, old name; readdir: possible output memory buffer */ 164 void *ptr1; /* all applicable requests: pathname, old name; readdir: optional eio_dirents */
148 void *ptr2; /* all applicable requests: new name or memory buffer */ 165 void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */
149 eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */ 166 eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */
150 eio_tstamp nv2; /* utime, futime: mtime */ 167 eio_tstamp nv2; /* utime, futime: mtime */
151 168
152 int type; /* EIO_xxx constant ETP */ 169 int type; /* EIO_xxx constant ETP */
153 int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, readdir: flags */ 170 int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, readdir: flags */
… …
225eio_req *eio_close (int fd, int pri, eio_cb cb, void *data); 242eio_req *eio_close (int fd, int pri, eio_cb cb, void *data);
226eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data); 243eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data);
227eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); 244eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data);
228eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); 245eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data);
229eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ 246eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
247eio_req *eio_fstatvfs (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
230eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); 248eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data);
231eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data); 249eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data);
232eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data); 250eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data);
233eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data); 251eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data);
234eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data); 252eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data);
… …
243eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data); 261eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data);
244eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data); 262eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data);
245eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ 263eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */
246eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ 264eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
247eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ 265eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
266eio_req *eio_statvfs (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
248eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data); 267eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data);
249eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data); 268eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data);
250eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data); 269eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data);
251eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data); 270eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data);
252eio_req *eio_custom (eio_cb execute, int pri, eio_cb cb, void *data); 271eio_req *eio_custom (eio_cb execute, int pri, eio_cb cb, void *data);
… …
263 282
264/*****************************************************************************/ 283/*****************************************************************************/
265/* request api */ 284/* request api */
266 285
267/* true if the request was cancelled, useful in the invoke callback */ 286/* true if the request was cancelled, useful in the invoke callback */
268#define EIO_CANCELLED(req) ((req)->flags & EIO_FLAG_CANCELLED) 287#define EIO_CANCELLED(req) ((req)->flags & EIO_FLAG_CANCELLED)
269 288
270#define EIO_RESULT(req) ((req)->result) 289#define EIO_RESULT(req) ((req)->result)
271/* returns a pointer to the result buffer allocated by eio */ 290/* returns a pointer to the result buffer allocated by eio */
272#define EIO_BUF(req) ((req)->ptr2) 291#define EIO_BUF(req) ((req)->ptr2)
273#define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req)) 292#define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req))
293#define EIO_STATVFS_BUF(req) ((EIO_STRUCT_STATVFS *)EIO_BUF(req))
274#define EIO_PATH(req) ((char *)(req)->ptr1) 294#define EIO_PATH(req) ((char *)(req)->ptr1)
275 295
276/* submit a request for execution */ 296/* submit a request for execution */
277void eio_submit (eio_req *req); 297void eio_submit (eio_req *req);
278/* cancel a request as soon fast as possible, if possible */ 298/* cancel a request as soon fast as possible, if possible */
279void eio_cancel (eio_req *req); 299void eio_cancel (eio_req *req);

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