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Comparing libeio/eio.h (file contents):
Revision 1.25 by root, Sat Jan 2 14:11:32 2010 UTC vs.
Revision 1.56 by root, Thu Jun 25 17:05:07 2015 UTC

1/* 1/*
2 * libeio API header 2 * libeio API header
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libeio@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2015 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,
… …
43#ifdef __cplusplus 43#ifdef __cplusplus
44extern "C" { 44extern "C" {
45#endif 45#endif
46 46
47#include <stddef.h> 47#include <stddef.h>
48#include <signal.h>
48#include <sys/types.h> 49#include <sys/types.h>
49 50
50typedef struct eio_req eio_req; 51typedef struct eio_req eio_req;
51typedef struct eio_dirent eio_dirent; 52typedef struct eio_dirent eio_dirent;
52 53
… …
55#ifndef EIO_REQ_MEMBERS 56#ifndef EIO_REQ_MEMBERS
56# define EIO_REQ_MEMBERS 57# define EIO_REQ_MEMBERS
57#endif 58#endif
58 59
59#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
60# define EIO_STRUCT_STAT struct stat 65# define EIO_STRUCT_STAT struct stat
61#endif 66# endif
67#endif
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);
62 102
63/* for readdir */ 103/* for readdir */
64 104
65/* eio_readdir flags */ 105/* eio_readdir flags */
66enum { 106enum
107{
67 EIO_READDIR_DENTS = 0x01, /* ptr2 contains eio_dirents, not just the (unsorted) names */ 108 EIO_READDIR_DENTS = 0x01, /* ptr2 contains eio_dirents, not just the (unsorted) names */
68 EIO_READDIR_DIRS_FIRST = 0x02, /* dirents gets sorted into a good stat() ing order to find directories first */ 109 EIO_READDIR_DIRS_FIRST = 0x02, /* dirents gets sorted into a good stat() ing order to find directories first */
69 EIO_READDIR_STAT_ORDER = 0x04, /* dirents gets sorted into a good stat() ing order to quickly stat all files */ 110 EIO_READDIR_STAT_ORDER = 0x04, /* dirents gets sorted into a good stat() ing order to quickly stat all files */
70 EIO_READDIR_FOUND_UNKNOWN = 0x80, /* set by eio_readdir when *_ARRAY was set and any TYPE=UNKNOWN's were found */ 111 EIO_READDIR_FOUND_UNKNOWN = 0x80, /* set by eio_readdir when *_ARRAY was set and any TYPE=UNKNOWN's were found */
71 112
72 EIO_READDIR_CUSTOM1 = 0x100, /* for use by apps */ 113 EIO_READDIR_CUSTOM1 = 0x100, /* for use by apps */
73 EIO_READDIR_CUSTOM2 = 0x200 /* for use by apps */ 114 EIO_READDIR_CUSTOM2 = 0x200 /* for use by apps */
74}; 115};
75 116
76/* using "typical" values in the hope that the compiler will do something sensible */ 117/* using "typical" values in the hope that the compiler will do something sensible */
77enum eio_dtype { 118enum eio_dtype
119{
78 EIO_DT_UNKNOWN = 0, 120 EIO_DT_UNKNOWN = 0,
79 EIO_DT_FIFO = 1, 121 EIO_DT_FIFO = 1,
80 EIO_DT_CHR = 2, 122 EIO_DT_CHR = 2,
81 EIO_DT_MPC = 3, /* multiplexed char device (v7+coherent) */ 123 EIO_DT_MPC = 3, /* multiplexed char device (v7+coherent) */
82 EIO_DT_DIR = 4, 124 EIO_DT_DIR = 4,
… …
92 EIO_DT_DOOR = 13, /* solaris door */ 134 EIO_DT_DOOR = 13, /* solaris door */
93 EIO_DT_WHT = 14, 135 EIO_DT_WHT = 14,
94 EIO_DT_MAX = 15 /* highest DT_VALUE ever, hopefully */ 136 EIO_DT_MAX = 15 /* highest DT_VALUE ever, hopefully */
95}; 137};
96 138
97struct eio_dirent { 139struct eio_dirent
140{
98 int nameofs; /* offset of null-terminated name string in (char *)req->ptr2 */ 141 int nameofs; /* offset of null-terminated name string in (char *)req->ptr2 */
99 unsigned short namelen; /* size of filename without trailing 0 */ 142 unsigned short namelen; /* size of filename without trailing 0 */
100 unsigned char type; /* one of EIO_DT_* */ 143 unsigned char type; /* one of EIO_DT_* */
101 signed char score; /* internal use */ 144 signed char score; /* internal use */
102 ino_t inode; /* the inode number, if available, otherwise unspecified */ 145 eio_ino_t inode; /* the inode number, if available, otherwise unspecified */
103}; 146};
104 147
105/* eio_msync flags */ 148/* eio_msync flags */
106enum { 149enum
150{
107 EIO_MS_ASYNC = 1, 151 EIO_MS_ASYNC = 1,
108 EIO_MS_INVALIDATE = 2, 152 EIO_MS_INVALIDATE = 2,
109 EIO_MS_SYNC = 4 153 EIO_MS_SYNC = 4
110}; 154};
111 155
112/* eio_mtouch flags */ 156/* eio_mtouch flags */
113
114enum { 157enum
158{
115 EIO_MT_MODIFY = 1 159 EIO_MT_MODIFY = 1
116}; 160};
117 161
118/* eio_sync_file_range flags */ 162/* eio_sync_file_range flags */
119
120enum { 163enum
164{
121 EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1, 165 EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1,
122 EIO_SYNC_FILE_RANGE_WRITE = 2, 166 EIO_SYNC_FILE_RANGE_WRITE = 2,
123 EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4 167 EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4
124}; 168};
125 169
126typedef double eio_tstamp; /* feel free to use double in your code directly */ 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;
127 182
128/* the eio request structure */ 183/* the eio request structure */
184enum
185{
186 EIO_CUSTOM,
187 EIO_WD_OPEN, EIO_WD_CLOSE,
188
189 EIO_CLOSE, EIO_DUP2,
190 EIO_SEEK, EIO_READ, EIO_WRITE,
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,
206 EIO_STAT, EIO_LSTAT, EIO_STATVFS,
207 EIO_TRUNCATE,
208 EIO_UTIME,
209 EIO_CHMOD,
210 EIO_CHOWN,
211 EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME,
212 EIO_MKNOD,
213 EIO_LINK, EIO_SYMLINK, EIO_READLINK,
214
215 EIO_REQ_TYPE_NUM
216};
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 */
221enum
222{
223 EIO_SEEK_SET = 0,
224 EIO_SEEK_CUR = 1,
225 EIO_SEEK_END = 2
226};
227
228
229/* mlockall constants */
230enum
231{
232 EIO_MCL_CURRENT = 1,
233 EIO_MCL_FUTURE = 2
234};
235
236/* request priorities */
129 237
130enum { 238enum {
131 EIO_CUSTOM, 239 EIO_PRI_MIN = -4,
132 EIO_OPEN, EIO_CLOSE, EIO_DUP2, 240 EIO_PRI_MAX = 4,
133 EIO_READ, EIO_WRITE, 241 EIO_PRI_DEFAULT = 0
134 EIO_READAHEAD, EIO_SENDFILE,
135 EIO_STAT, EIO_LSTAT, EIO_FSTAT,
136 EIO_TRUNCATE, EIO_FTRUNCATE,
137 EIO_UTIME, EIO_FUTIME,
138 EIO_CHMOD, EIO_FCHMOD,
139 EIO_CHOWN, EIO_FCHOWN,
140 EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC,
141 EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE,
142 EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME,
143 EIO_MKNOD, EIO_READDIR,
144 EIO_LINK, EIO_SYMLINK, EIO_READLINK,
145 EIO_GROUP, EIO_NOP,
146 EIO_BUSY
147}; 242};
148 243
149/* eio request structure */ 244/* eio request structure */
150/* this structure is mostly read-only */ 245/* this structure is mostly read-only */
151/* when initialising it, all members must be zero-initialised */ 246/* when initialising it, all members must be zero-initialised */
152struct eio_req 247struct eio_req
153{ 248{
154 eio_req volatile *next; /* private ETP */ 249 eio_req volatile *next; /* private ETP */
155 250
251 eio_wd wd; /* all applicable requests: working directory of pathname, old name; wd_open: return wd */
252
156 ssize_t result; /* result of syscall, e.g. result = read (... */ 253 eio_ssize_t result; /* result of syscall, e.g. result = read (... */
157 off_t offs; /* read, write, truncate, readahead, sync_file_range: file offset */ 254 off_t offs; /* read, write, truncate, readahead, sync_file_range, fallocate: file offset, mknod: dev_t */
158 size_t size; /* read, write, readahead, sendfile, msync, sync_file_range: length */ 255 size_t size; /* read, write, readahead, sendfile, msync, mlock, sync_file_range, fallocate: length */
159 void *ptr1; /* all applicable requests: pathname, old name; readdir: optional eio_dirents */ 256 void *ptr1; /* all applicable requests: pathname, old name; readdir: optional eio_dirents */
160 void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */ 257 void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */
161 eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */ 258 eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */
162 eio_tstamp nv2; /* utime, futime: mtime */ 259 eio_tstamp nv2; /* utime, futime: mtime */
163 260
164 int type; /* EIO_xxx constant ETP */
165 int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, readdir: flags */ 261 int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, mlockall, readdir: flags */
166 long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, sync_file_range: flags */ 262 long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, seek: whence, sync_file_range, fallocate: flags */
167 long int3; /* chown, fchown: gid; mknod: dev_t */ 263 long int3; /* chown, fchown: gid; rename, link: working directory of new name */
168 int errorno; /* errno value on syscall return */ 264 int errorno; /* errno value on syscall return */
169 265
170 unsigned char flags; /* private */ 266 unsigned char flags; /* private */
267
268 signed char type;/* EIO_xxx constant ETP */
171 signed char pri; /* the priority */ 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
172 275
173 void *data; 276 void *data;
174 eio_cb finish; 277 eio_cb finish;
175 void (*destroy)(eio_req *req); /* called when requets no longer needed */ 278 void (*destroy)(eio_req *req); /* called when request no longer needed */
176 void (*feed)(eio_req *req); /* only used for group requests */ 279 void (*feed)(eio_req *req); /* only used for group requests */
177 280
178 EIO_REQ_MEMBERS 281 EIO_REQ_MEMBERS
179 282
180 eio_req *grp, *grp_prev, *grp_next, *grp_first; /* private */ 283 eio_req *grp, *grp_prev, *grp_next, *grp_first; /* private ETP */
181}; 284};
182 285
183/* _private_ flags */ 286/* _private_ request flags */
184enum { 287enum {
185 EIO_FLAG_CANCELLED = 0x01, /* request was cancelled */
186 EIO_FLAG_PTR1_FREE = 0x02, /* need to free(ptr1) */ 288 EIO_FLAG_PTR1_FREE = 0x01, /* need to free(ptr1) */
187 EIO_FLAG_PTR2_FREE = 0x04, /* need to free(ptr2) */ 289 EIO_FLAG_PTR2_FREE = 0x02, /* need to free(ptr2) */
188 EIO_FLAG_GROUPADD = 0x08 /* some request was added to the group */
189}; 290};
190 291
191enum { 292/* undocumented/unsupported/private helper */
192 EIO_PRI_MIN = -4, 293/*void eio_page_align (void **addr, size_t *length);*/
193 EIO_PRI_MAX = 4,
194 EIO_PRI_DEFAULT = 0,
195};
196 294
197/* returns < 0 on error, errno set 295/* returns < 0 on error, errno set
198 * 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
199 * 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).
200 * done_poll is called when the need to poll is gone. 298 * done_poll is called when the need to poll is gone.
… …
214 * maximum wanted number 312 * maximum wanted number
215 * or maximum idle number of threads */ 313 * or maximum idle number of threads */
216void eio_set_min_parallel (unsigned int nthreads); 314void eio_set_min_parallel (unsigned int nthreads);
217void eio_set_max_parallel (unsigned int nthreads); 315void eio_set_max_parallel (unsigned int nthreads);
218void eio_set_max_idle (unsigned int nthreads); 316void eio_set_max_idle (unsigned int nthreads);
317void eio_set_idle_timeout (unsigned int seconds);
219 318
220unsigned int eio_nreqs (void); /* number of requests in-flight */ 319unsigned int eio_nreqs (void); /* number of requests in-flight */
221unsigned int eio_nready (void); /* number of not-yet handled requests */ 320unsigned int eio_nready (void); /* number of not-yet handled requests */
222unsigned int eio_npending (void); /* numbe rof finished but unhandled requests */ 321unsigned int eio_npending (void); /* number of finished but unhandled requests */
223unsigned int eio_nthreads (void); /* number of worker threads in use currently */ 322unsigned int eio_nthreads (void); /* number of worker threads in use currently */
224 323
225/*****************************************************************************/ 324/*****************************************************************************/
226/* convinience wrappers */ 325/* convenience wrappers */
227 326
228#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);
229eio_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 */
230eio_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 */
231eio_req *eio_sync (int pri, eio_cb cb, void *data); 332eio_req *eio_sync (int pri, eio_cb cb, void *data);
232eio_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);
233eio_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);
234eio_req *eio_msync (void *addr, size_t length, int flags, 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);
235eio_req *eio_mtouch (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);
236eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned 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);
237eio_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);
238eio_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);
239eio_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);
240eio_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);
241eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ 347eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
348eio_req *eio_fstatvfs (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
242eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); 349eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data);
243eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data); 350eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data);
244eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data); 351eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data);
245eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data); 352eio_req *eio_fchown (int fd, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data);
246eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data); 353eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data);
247eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data); 354eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data);
248eio_req *eio_open (const char *path, int flags, mode_t mode, int pri, eio_cb cb, void *data); 355eio_req *eio_open (const char *path, int flags, mode_t mode, int pri, eio_cb cb, void *data);
249eio_req *eio_utime (const char *path, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); 356eio_req *eio_utime (const char *path, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data);
250eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data); 357eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data);
251eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data); 358eio_req *eio_chown (const char *path, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data);
252eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data); 359eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data);
253eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data); 360eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data);
254eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ 361eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */
255eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data); 362eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data);
256eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data); 363eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data);
257eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ 364eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */
365eio_req *eio_realpath (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */
258eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ 366eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
259eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ 367eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
368eio_req *eio_statvfs (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
260eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data); 369eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data);
261eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data); 370eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data);
262eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data); 371eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data);
263eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data); 372eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data);
264eio_req *eio_custom (eio_cb execute, int pri, eio_cb cb, void *data); 373eio_req *eio_custom (void (*execute)(eio_req *), int pri, eio_cb cb, void *data);
265#endif 374#endif
266 375
267/*****************************************************************************/ 376/*****************************************************************************/
268/* groups */ 377/* groups */
269 378
… …
275 384
276/*****************************************************************************/ 385/*****************************************************************************/
277/* request api */ 386/* request api */
278 387
279/* true if the request was cancelled, useful in the invoke callback */ 388/* true if the request was cancelled, useful in the invoke callback */
280#define EIO_CANCELLED(req) ((req)->flags & EIO_FLAG_CANCELLED) 389#define EIO_CANCELLED(req) ((req)->cancelled)
281 390
282#define EIO_RESULT(req) ((req)->result) 391#define EIO_RESULT(req) ((req)->result)
283/* returns a pointer to the result buffer allocated by eio */ 392/* returns a pointer to the result buffer allocated by eio */
284#define EIO_BUF(req) ((req)->ptr2) 393#define EIO_BUF(req) ((req)->ptr2)
285#define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req)) 394#define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req))
395#define EIO_STATVFS_BUF(req) ((EIO_STRUCT_STATVFS *)EIO_BUF(req))
286#define EIO_PATH(req) ((char *)(req)->ptr1) 396#define EIO_PATH(req) ((char *)(req)->ptr1)
287 397
288/* submit a request for execution */ 398/* submit a request for execution */
289void eio_submit (eio_req *req); 399void eio_submit (eio_req *req);
290/* cancel a request as soon fast as possible, if possible */ 400/* cancel a request as soon fast as possible, if possible */
291void eio_cancel (eio_req *req); 401void eio_cancel (eio_req *req);
292/* destroy a request that has never been submitted */
293void eio_destroy (eio_req *req);
294 402
295/*****************************************************************************/ 403/*****************************************************************************/
296/* convinience functions */ 404/* convenience functions */
297 405
298ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count); 406eio_ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count);
299 407
300#ifdef __cplusplus 408#ifdef __cplusplus
301} 409}
302#endif 410#endif
303 411

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