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Comparing libeio/eio.h (file contents):
Revision 1.13 by root, Sat May 17 12:26:57 2008 UTC vs.
Revision 1.57 by root, Tue Feb 23 19:42:44 2016 UTC

1/* 1/*
2 * libeio API header 2 * libeio API header
3 * 3 *
4 * Copyright (c) 2007,2008 Marc Alexander Lehmann <libeio@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2015,2016 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 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
38 */ 38 */
39 39
40#ifndef EIO_H_ 40#ifndef EIO_H_
41#define EIO_H_ 41#define EIO_H_
42 42
43#ifdef __cplusplus
44extern "C" {
45#endif
46
43#include <stddef.h> 47#include <stddef.h>
48#include <signal.h>
44#include <sys/types.h> 49#include <sys/types.h>
45 50
46typedef struct eio_req eio_req; 51typedef struct eio_req eio_req;
52typedef struct eio_dirent eio_dirent;
47 53
48typedef int (*eio_cb)(eio_req *req); 54typedef int (*eio_cb)(eio_req *req);
49 55
50#ifndef EIO_REQ_MEMBERS 56#ifndef EIO_REQ_MEMBERS
51# define EIO_REQ_MEMBERS 57# define EIO_REQ_MEMBERS
52#endif 58#endif
53 59
54#ifndef EIO_STRUCT_STAT 60#ifndef EIO_STRUCT_STAT
61# ifdef _WIN32
62# define EIO_STRUCT_STAT struct _stati64
63# define EIO_STRUCT_STATI64
64# else
55# define EIO_STRUCT_STAT struct stat 65# define EIO_STRUCT_STAT struct stat
56#endif 66# endif
67#endif
57 68
69#ifdef _WIN32
70 typedef int eio_uid_t;
71 typedef int eio_gid_t;
72 #ifdef __MINGW32__ /* no intptr_t */
73 typedef ssize_t eio_ssize_t;
74 #else
75 typedef intptr_t eio_ssize_t; /* or SSIZE_T */
76 #endif
77 #if __GNUC__
78 typedef long long eio_ino_t; /* signed for compatibility to msvc */
79 #else
80 typedef __int64 eio_ino_t; /* unsigned not supported by msvc */
81 #endif
82#else
83 typedef uid_t eio_uid_t;
84 typedef gid_t eio_gid_t;
85 typedef ssize_t eio_ssize_t;
86 typedef ino_t eio_ino_t;
87#endif
88
89#ifndef EIO_STRUCT_STATVFS
90# define EIO_STRUCT_STATVFS struct statvfs
91#endif
92
93/* managing working directories */
94
95typedef struct eio_pwd *eio_wd;
96
97#define EIO_CWD 0 /* the current working directory of the process, guaranteed to be a null pointer */
98#define EIO_INVALID_WD ((eio_wd)(int)-1) /* failure return for eio_wd_open */
99
100eio_wd eio_wd_open_sync (eio_wd wd, const char *path);
101void eio_wd_close_sync (eio_wd wd);
102
103/* for readdir */
104
105/* eio_readdir flags */
58enum { 106enum
107{
108 EIO_READDIR_DENTS = 0x01, /* ptr2 contains eio_dirents, not just the (unsorted) names */
109 EIO_READDIR_DIRS_FIRST = 0x02, /* dirents gets sorted into a good stat() ing order to find directories first */
110 EIO_READDIR_STAT_ORDER = 0x04, /* dirents gets sorted into a good stat() ing order to quickly stat all files */
111 EIO_READDIR_FOUND_UNKNOWN = 0x80, /* set by eio_readdir when *_ARRAY was set and any TYPE=UNKNOWN's were found */
112
113 EIO_READDIR_CUSTOM1 = 0x100, /* for use by apps */
114 EIO_READDIR_CUSTOM2 = 0x200 /* for use by apps */
115};
116
117/* using "typical" values in the hope that the compiler will do something sensible */
118enum eio_dtype
119{
120 EIO_DT_UNKNOWN = 0,
121 EIO_DT_FIFO = 1,
122 EIO_DT_CHR = 2,
123 EIO_DT_MPC = 3, /* multiplexed char device (v7+coherent) */
124 EIO_DT_DIR = 4,
125 EIO_DT_NAM = 5, /* xenix special named file */
126 EIO_DT_BLK = 6,
127 EIO_DT_MPB = 7, /* multiplexed block device (v7+coherent) */
128 EIO_DT_REG = 8,
129 EIO_DT_NWK = 9, /* HP-UX network special */
130 EIO_DT_CMP = 9, /* VxFS compressed */
131 EIO_DT_LNK = 10,
132 /* DT_SHAD = 11,*/
133 EIO_DT_SOCK = 12,
134 EIO_DT_DOOR = 13, /* solaris door */
135 EIO_DT_WHT = 14,
136 EIO_DT_MAX = 15 /* highest DT_VALUE ever, hopefully */
137};
138
139struct eio_dirent
140{
141 int nameofs; /* offset of null-terminated name string in (char *)req->ptr2 */
142 unsigned short namelen; /* size of filename without trailing 0 */
143 unsigned char type; /* one of EIO_DT_* */
144 signed char score; /* internal use */
145 eio_ino_t inode; /* the inode number, if available, otherwise unspecified */
146};
147
148/* eio_msync flags */
149enum
150{
151 EIO_MS_ASYNC = 1,
152 EIO_MS_INVALIDATE = 2,
153 EIO_MS_SYNC = 4
154};
155
156/* eio_mtouch flags */
157enum
158{
159 EIO_MT_MODIFY = 1
160};
161
162/* eio_sync_file_range flags */
163enum
164{
165 EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1,
166 EIO_SYNC_FILE_RANGE_WRITE = 2,
167 EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4
168};
169
170/* eio_fallocate flags */
171enum
172{
173 /* these MUST match the value in linux/falloc.h */
174 EIO_FALLOC_FL_KEEP_SIZE = 0x01,
175 EIO_FALLOC_FL_PUNCH_HOLE = 0x02,
176 EIO_FALLOC_FL_COLLAPSE_RANGE = 0x08,
177 EIO_FALLOC_FL_ZERO_RANGE = 0x10
178};
179
180/* timestamps and differences - feel free to use double in your code directly */
181typedef double eio_tstamp;
182
183/* the eio request structure */
184enum
185{
186 EIO_CUSTOM,
187 EIO_WD_OPEN, EIO_WD_CLOSE,
188
59 EIO_OPEN, EIO_CLOSE, EIO_DUP2, 189 EIO_CLOSE, EIO_DUP2,
60 EIO_READ, EIO_WRITE, 190 EIO_SEEK, EIO_READ, EIO_WRITE, EIO_FCNTL, EIO_IOCTL,
61 EIO_READAHEAD, EIO_SENDFILE, 191 EIO_READAHEAD, EIO_SENDFILE,
192 EIO_FSTAT, EIO_FSTATVFS,
193 EIO_FTRUNCATE, EIO_FUTIME, EIO_FCHMOD, EIO_FCHOWN,
194 EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, EIO_SYNCFS,
195 EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE, EIO_FALLOCATE,
196 EIO_MLOCK, EIO_MLOCKALL,
197 EIO_GROUP, EIO_NOP,
198 EIO_BUSY,
199
200 /* these use wd + ptr1, but are emulated */
201 EIO_REALPATH,
202 EIO_READDIR,
203
204 /* all the following requests use wd + ptr1 as path in xxxat functions */
205 EIO_OPEN,
62 EIO_STAT, EIO_LSTAT, EIO_FSTAT, 206 EIO_STAT, EIO_LSTAT, EIO_STATVFS,
63 EIO_TRUNCATE, EIO_FTRUNCATE, 207 EIO_TRUNCATE,
64 EIO_UTIME, EIO_FUTIME, 208 EIO_UTIME,
65 EIO_CHMOD, EIO_FCHMOD, 209 EIO_CHMOD,
66 EIO_CHOWN, EIO_FCHOWN, 210 EIO_CHOWN,
67 EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC,
68 EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME, 211 EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME,
69 EIO_MKNOD, EIO_READDIR, 212 EIO_MKNOD,
70 EIO_LINK, EIO_SYMLINK, EIO_READLINK, 213 EIO_LINK, EIO_SYMLINK, EIO_READLINK,
71 EIO_GROUP, EIO_NOP,
72 EIO_BUSY, EIO_CUSTOM
73};
74 214
75typedef double eio_tstamp; /* feel free to use double in your code directly */ 215 EIO_REQ_TYPE_NUM
76
77/* eio request structure */
78/* this structure is mostly read-only */
79struct eio_req
80{
81 eio_req volatile *next; /* private ETP */
82
83 ssize_t result; /* result of syscall, e.g. result = read (... */
84 off_t offs; /* read, write, truncate, readahead: file offset; mknod: dev_t */
85 size_t size; /* read, write, readahead, sendfile: length */
86 void *ptr1; /* all applicable requests: pathname, old name */
87 void *ptr2; /* all applicable requests: new name or memory buffer */
88 eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */
89 eio_tstamp nv2; /* utime, futime: mtime */
90
91 int type; /* EIO_xxx constant ETP */
92 int int1; /* all applicable requests: file descriptor; sendfile: output fd; open: flags */
93 long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode */
94 long int3; /* chown, fchown: gid */
95 int errorno; /* errno value on syscall return */
96
97 unsigned char flags; /* private */
98 signed char pri; /* the priority */
99
100 void *data;
101 eio_cb finish;
102 void (*destroy)(eio_req *req); /* called when requets no longer needed */
103 void (*feed)(eio_req *req); /* only used for group requests */
104
105 EIO_REQ_MEMBERS
106
107 eio_req *grp, *grp_prev, *grp_next, *grp_first; /* private */
108}; 216};
109 217
218/* seek whence modes */
219/* these are guaranteed to hasve the traditional 0, 1, 2 values, */
220/* so you might as wlel use those */
110enum { 221enum
111 EIO_FLAG_CANCELLED = 0x01, /* request was cancelled */ 222{
112 EIO_FLAG_PTR1_FREE = 0x02, /* need to free(ptr1) */ 223 EIO_SEEK_SET = 0,
113 EIO_FLAG_PTR2_FREE = 0x04 /* need to free(ptr2) */ 224 EIO_SEEK_CUR = 1,
225 EIO_SEEK_END = 2
114}; 226};
227
228
229/* mlockall constants */
230enum
231{
232 EIO_MCL_CURRENT = 1,
233 EIO_MCL_FUTURE = 2
234};
235
236/* request priorities */
115 237
116enum { 238enum {
117 EIO_PRI_MIN = -4, 239 EIO_PRI_MIN = -4,
118 EIO_PRI_MAX = 4, 240 EIO_PRI_MAX = 4,
119 EIO_PRI_DEFAULT = 0, 241 EIO_PRI_DEFAULT = 0
120}; 242};
243
244/* eio request structure */
245/* this structure is mostly read-only */
246/* when initialising it, all members must be zero-initialised */
247struct eio_req
248{
249 eio_req volatile *next; /* private ETP */
250
251 eio_wd wd; /* all applicable requests: working directory of pathname, old name; wd_open: return wd */
252
253 eio_ssize_t result; /* result of syscall, e.g. result = read (... */
254 off_t offs; /* read, write, truncate, readahead, sync_file_range, fallocate: file offset, mknod: dev_t */
255 size_t size; /* read, write, readahead, sendfile, msync, mlock, sync_file_range, fallocate: length */
256 void *ptr1; /* all applicable requests: pathname, old name, readdir: optional eio_dirents */
257 void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */
258 eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */
259 eio_tstamp nv2; /* utime, futime: mtime */
260
261 int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, mlockall, readdir: flags */
262 long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, seek: whence, fcntl, ioctl: request, sync_file_range, fallocate: flags */
263 long int3; /* chown, fchown: gid; rename, link: working directory of new name */
264 int errorno; /* errno value on syscall return */
265
266 unsigned char flags; /* private */
267
268 signed char type;/* EIO_xxx constant ETP */
269 signed char pri; /* the priority ETP */
270#if __i386 || __amd64
271 unsigned char cancelled; /* ETP */
272#else
273 sig_atomic_t cancelled; /* ETP */
274#endif
275
276 void *data;
277 eio_cb finish;
278 void (*destroy)(eio_req *req); /* called when request no longer needed */
279 void (*feed)(eio_req *req); /* only used for group requests */
280
281 EIO_REQ_MEMBERS
282
283 eio_req *grp, *grp_prev, *grp_next, *grp_first; /* private ETP */
284};
285
286/* _private_ request flags */
287enum {
288 EIO_FLAG_PTR1_FREE = 0x01, /* need to free(ptr1) */
289 EIO_FLAG_PTR2_FREE = 0x02, /* need to free(ptr2) */
290};
291
292/* undocumented/unsupported/private helper */
293/*void eio_page_align (void **addr, size_t *length);*/
121 294
122/* returns < 0 on error, errno set 295/* returns < 0 on error, errno set
123 * need_poll, if non-zero, will be called when results are available 296 * need_poll, if non-zero, will be called when results are available
124 * and eio_poll_cb needs to be invoked (it MUST NOT call eio_poll_cb itself). 297 * and eio_poll_cb needs to be invoked (it MUST NOT call eio_poll_cb itself).
125 * done_poll is called when the need to poll is gone. 298 * done_poll is called when the need to poll is gone.
… …
139 * maximum wanted number 312 * maximum wanted number
140 * or maximum idle number of threads */ 313 * or maximum idle number of threads */
141void eio_set_min_parallel (unsigned int nthreads); 314void eio_set_min_parallel (unsigned int nthreads);
142void eio_set_max_parallel (unsigned int nthreads); 315void eio_set_max_parallel (unsigned int nthreads);
143void eio_set_max_idle (unsigned int nthreads); 316void eio_set_max_idle (unsigned int nthreads);
317void eio_set_idle_timeout (unsigned int seconds);
144 318
145unsigned int eio_nreqs (void); /* number of requests in-flight */ 319unsigned int eio_nreqs (void); /* number of requests in-flight */
146unsigned int eio_nready (void); /* number of not-yet handled requests */ 320unsigned int eio_nready (void); /* number of not-yet handled requests */
147unsigned int eio_npending (void); /* numbe rof finished but unhandled requests */ 321unsigned int eio_npending (void); /* number of finished but unhandled requests */
148unsigned int eio_nthreads (void); /* number of worker threads in use currently */ 322unsigned int eio_nthreads (void); /* number of worker threads in use currently */
149 323
150/*****************************************************************************/ 324/*****************************************************************************/
151/* convinience wrappers */ 325/* convenience wrappers */
152 326
153#ifndef EIO_NO_WRAPPERS 327#ifndef EIO_NO_WRAPPERS
328eio_req *eio_wd_open (const char *path, int pri, eio_cb cb, void *data); /* result=wd */
329eio_req *eio_wd_close (eio_wd wd, int pri, eio_cb cb, void *data);
154eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */ 330eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */
155eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */ 331eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */
156eio_req *eio_sync (int pri, eio_cb cb, void *data); 332eio_req *eio_sync (int pri, eio_cb cb, void *data);
157eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data); 333eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data);
158eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data); 334eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data);
335eio_req *eio_syncfs (int fd, int pri, eio_cb cb, void *data);
336eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data);
337eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data);
338eio_req *eio_mlock (void *addr, size_t length, int pri, eio_cb cb, void *data);
339eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data);
340eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data);
341eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data);
159eio_req *eio_close (int fd, int pri, eio_cb cb, void *data); 342eio_req *eio_close (int fd, int pri, eio_cb cb, void *data);
160eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data); 343eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data);
344eio_req *eio_seek (int fd, off_t offset, int whence, int pri, eio_cb cb, void *data);
161eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); 345eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data);
162eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); 346eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data);
347eio_req *eio_fcntl (int fd, int cmd, void *arg, int pri, eio_cb cb, void *data);
348eio_req *eio_ioctl (int fd, unsigned long request, void *buf, int pri, eio_cb cb, void *data);
163eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ 349eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
350eio_req *eio_fstatvfs (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
164eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); 351eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data);
165eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data); 352eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data);
166eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data); 353eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data);
167eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data); 354eio_req *eio_fchown (int fd, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data);
168eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data); 355eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data);
169eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data); 356eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data);
170eio_req *eio_open (const char *path, int flags, mode_t mode, int pri, eio_cb cb, void *data); 357eio_req *eio_open (const char *path, int flags, mode_t mode, int pri, eio_cb cb, void *data);
171eio_req *eio_utime (const char *path, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); 358eio_req *eio_utime (const char *path, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data);
172eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data); 359eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data);
173eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data); 360eio_req *eio_chown (const char *path, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data);
174eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data); 361eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data);
175eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data); 362eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data);
176eio_req *eio_readdir (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ 363eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */
177eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data); 364eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data);
178eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data); 365eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data);
179eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ 366eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */
367eio_req *eio_realpath (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */
180eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ 368eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
181eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ 369eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
370eio_req *eio_statvfs (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
182eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data); 371eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data);
183eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data); 372eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data);
184eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data); 373eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data);
185eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data); 374eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data);
186eio_req *eio_custom (eio_cb execute, int pri, eio_cb cb, void *data); 375eio_req *eio_custom (void (*execute)(eio_req *), int pri, eio_cb cb, void *data);
187#endif 376#endif
188 377
189/*****************************************************************************/ 378/*****************************************************************************/
190/* groups */ 379/* groups */
191 380
… …
197 386
198/*****************************************************************************/ 387/*****************************************************************************/
199/* request api */ 388/* request api */
200 389
201/* true if the request was cancelled, useful in the invoke callback */ 390/* true if the request was cancelled, useful in the invoke callback */
202#define EIO_CANCELLED(req) ((req)->flags & EIO_FLAG_CANCELLED) 391#define EIO_CANCELLED(req) ((req)->cancelled)
203 392
204#define EIO_RESULT(req) ((req)->result) 393#define EIO_RESULT(req) ((req)->result)
205/* returns a pointer to the result buffer allocated by eio */ 394/* returns a pointer to the result buffer allocated by eio */
206#define EIO_BUF(req) ((req)->ptr2) 395#define EIO_BUF(req) ((req)->ptr2)
207#define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req)) 396#define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req))
397#define EIO_STATVFS_BUF(req) ((EIO_STRUCT_STATVFS *)EIO_BUF(req))
208#define EIO_PATH(req) ((char *)(req)->ptr1) 398#define EIO_PATH(req) ((char *)(req)->ptr1)
209 399
210/* submit a request for execution */ 400/* submit a request for execution */
211void eio_submit (eio_req *req); 401void eio_submit (eio_req *req);
212/* cancel a request as soon fast as possible, if possible */ 402/* cancel a request as soon fast as possible, if possible */
213void eio_cancel (eio_req *req); 403void eio_cancel (eio_req *req);
214/* destroy a request that has never been submitted */
215void eio_destroy (eio_req *req);
216 404
217/*****************************************************************************/ 405/*****************************************************************************/
218/* convinience functions */ 406/* convenience functions */
219 407
220ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count); 408eio_ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count);
221 409
410#ifdef __cplusplus
411}
222#endif 412#endif
223 413
414#endif
415

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