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Comparing libeio/eio.h (file contents):
Revision 1.19 by root, Sat Jun 6 17:25:13 2009 UTC vs.
Revision 1.44 by root, Sun Jul 24 03:32:54 2011 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) 2007,2008,2009,2010,2011 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 *
… …
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
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;
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
61#endif 91#endif
62 92
63/* for readdir */ 93/* for readdir */
64 94
65/* eio_readdir flags */ 95/* eio_readdir flags */
66enum { 96enum
97{
67 EIO_READDIR_DENTS = 0x01, /* ptr2 contains eio_dirents, not just the (unsorted) names */ 98 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 */ 99 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 */ 100 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 */ 101 EIO_READDIR_FOUND_UNKNOWN = 0x80, /* set by eio_readdir when *_ARRAY was set and any TYPE=UNKNOWN's were found */
71 102
72 EIO_READDIR_CUSTOM1 = 0x100, /* for use by apps */ 103 EIO_READDIR_CUSTOM1 = 0x100, /* for use by apps */
73 EIO_READDIR_CUSTOM2 = 0x200 /* for use by apps */ 104 EIO_READDIR_CUSTOM2 = 0x200 /* for use by apps */
74}; 105};
75 106
76/* using "typical" values in the hope that the compiler will do something sensible */ 107/* using "typical" values in the hope that the compiler will do something sensible */
77enum eio_dtype { 108enum eio_dtype
109{
78 EIO_DT_UNKNOWN = 0, 110 EIO_DT_UNKNOWN = 0,
79 EIO_DT_FIFO = 1, 111 EIO_DT_FIFO = 1,
80 EIO_DT_CHR = 2, 112 EIO_DT_CHR = 2,
113 EIO_DT_MPC = 3, /* multiplexed char device (v7+coherent) */
81 EIO_DT_DIR = 4, 114 EIO_DT_DIR = 4,
115 EIO_DT_NAM = 5, /* xenix special named file */
82 EIO_DT_BLK = 6, 116 EIO_DT_BLK = 6,
117 EIO_DT_MPB = 7, /* multiplexed block device (v7+coherent) */
83 EIO_DT_REG = 8, 118 EIO_DT_REG = 8,
119 EIO_DT_NWK = 9, /* HP-UX network special */
120 EIO_DT_CMP = 9, /* VxFS compressed */
84 EIO_DT_LNK = 10, 121 EIO_DT_LNK = 10,
122 /* DT_SHAD = 11,*/
85 EIO_DT_SOCK = 12, 123 EIO_DT_SOCK = 12,
124 EIO_DT_DOOR = 13, /* solaris door */
86 EIO_DT_WHT = 14, 125 EIO_DT_WHT = 14,
87 EIO_DT_MAX = 15 /* highest DT_VALUE ever, hopefully */ 126 EIO_DT_MAX = 15 /* highest DT_VALUE ever, hopefully */
88}; 127};
89 128
90struct eio_dirent { 129struct eio_dirent
91 char *name; 130{
92 ino_t inode; 131 int nameofs; /* offset of null-terminated name string in (char *)req->ptr2 */
93 unsigned short namelen; 132 unsigned short namelen; /* size of filename without trailing 0 */
94 unsigned char type; 133 unsigned char type; /* one of EIO_DT_* */
95 unsigned char score; /* internal use */ 134 signed char score; /* internal use */
96 /* 0-4 bytes padding */ 135 eio_ino_t inode; /* the inode number, if available, otherwise unspecified */
136};
137
138/* eio_msync flags */
139enum
140{
141 EIO_MS_ASYNC = 1,
142 EIO_MS_INVALIDATE = 2,
143 EIO_MS_SYNC = 4
144};
145
146/* eio_mtouch flags */
147enum
148{
149 EIO_MT_MODIFY = 1
97}; 150};
98 151
99/* eio_sync_file_range flags */ 152/* eio_sync_file_range flags */
100
101enum { 153enum
154{
102 EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1, 155 EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1,
103 EIO_SYNC_FILE_RANGE_WRITE = 2, 156 EIO_SYNC_FILE_RANGE_WRITE = 2,
104 EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4 157 EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4
105}; 158};
106 159
107typedef double eio_tstamp; /* feel free to use double in your code directly */ 160/* eio_fallocate flags */
161enum
162{
163 EIO_FALLOC_FL_KEEP_SIZE = 1 /* MUST match the value in linux/falloc.h */
164};
165
166/* timestamps and differences - feel free to use double in your code directly */
167typedef double eio_tstamp;
108 168
109/* the eio request structure */ 169/* the eio request structure */
110
111enum { 170enum
171{
112 EIO_CUSTOM, 172 EIO_CUSTOM,
113 EIO_OPEN, EIO_CLOSE, EIO_DUP2, 173 EIO_OPEN, EIO_CLOSE, EIO_DUP2,
114 EIO_READ, EIO_WRITE, 174 EIO_READ, EIO_WRITE,
115 EIO_READAHEAD, EIO_SENDFILE, 175 EIO_READAHEAD, EIO_SENDFILE,
116 EIO_STAT, EIO_LSTAT, EIO_FSTAT, 176 EIO_STAT, EIO_LSTAT, EIO_FSTAT,
177 EIO_STATVFS, EIO_FSTATVFS,
117 EIO_TRUNCATE, EIO_FTRUNCATE, 178 EIO_TRUNCATE, EIO_FTRUNCATE,
118 EIO_UTIME, EIO_FUTIME, 179 EIO_UTIME, EIO_FUTIME,
119 EIO_CHMOD, EIO_FCHMOD, 180 EIO_CHMOD, EIO_FCHMOD,
120 EIO_CHOWN, EIO_FCHOWN, 181 EIO_CHOWN, EIO_FCHOWN,
121 EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, 182 EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, EIO_SYNCFS,
122 EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE, 183 EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE, EIO_FALLOCATE,
184 EIO_MLOCK, EIO_MLOCKALL,
123 EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME, 185 EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME,
124 EIO_MKNOD, EIO_READDIR, 186 EIO_MKNOD, EIO_READDIR,
125 EIO_LINK, EIO_SYMLINK, EIO_READLINK, 187 EIO_LINK, EIO_SYMLINK, EIO_READLINK, EIO_REALPATH,
126 EIO_GROUP, EIO_NOP, 188 EIO_GROUP, EIO_NOP,
127 EIO_BUSY 189 EIO_BUSY
190};
191
192/* mlockall constants */
193enum
194{
195 EIO_MCL_CURRENT = 1,
196 EIO_MCL_FUTURE = 2,
197};
198
199/* request priorities */
200
201enum {
202 EIO_PRI_MIN = -4,
203 EIO_PRI_MAX = 4,
204 EIO_PRI_DEFAULT = 0,
128}; 205};
129 206
130/* eio request structure */ 207/* eio request structure */
131/* this structure is mostly read-only */ 208/* this structure is mostly read-only */
132/* when initialising it, all members must be zero-initialised */ 209/* when initialising it, all members must be zero-initialised */
133struct eio_req 210struct eio_req
134{ 211{
135 eio_req volatile *next; /* private ETP */ 212 eio_req volatile *next; /* private ETP */
136 213
137 ssize_t result; /* result of syscall, e.g. result = read (... */ 214 eio_ssize_t result; /* result of syscall, e.g. result = read (... */
138 off_t offs; /* read, write, truncate, readahead, sync_file_range: file offset */ 215 off_t offs; /* read, write, truncate, readahead, sync_file_range, fallocate: file offset, mknod: dev_t */
139 size_t size; /* read, write, readahead, sendfile, msync, sync_file_range: length */ 216 size_t size; /* read, write, readahead, sendfile, msync, mlock, sync_file_range, fallocate: length */
140 void *ptr1; /* all applicable requests: pathname, old name */ 217 void *ptr1; /* all applicable requests: pathname, old name; readdir: optional eio_dirents */
141 void *ptr2; /* all applicable requests: new name or memory buffer */ 218 void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */
142 eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */ 219 eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */
143 eio_tstamp nv2; /* utime, futime: mtime */ 220 eio_tstamp nv2; /* utime, futime: mtime */
144 221
145 int type; /* EIO_xxx constant ETP */ 222 int type; /* EIO_xxx constant ETP */
146 int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, readdir: flags */ 223 int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, mlockall, readdir: flags */
147 long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, sync_file_range: flags */ 224 long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, sync_file_range, fallocate: flags */
148 long int3; /* chown, fchown: gid; mknod: dev_t */ 225 long int3; /* chown, fchown: gid */
149 int errorno; /* errno value on syscall return */ 226 int errorno; /* errno value on syscall return */
227
228#if __i386 || __amd64
229 unsigned char cancelled;
230#else
231 sig_atomic_t cancelled;
232#endif
150 233
151 unsigned char flags; /* private */ 234 unsigned char flags; /* private */
152 signed char pri; /* the priority */ 235 signed char pri; /* the priority */
153 236
154 void *data; 237 void *data;
155 eio_cb finish; 238 eio_cb finish;
156 void (*destroy)(eio_req *req); /* called when requets no longer needed */ 239 void (*destroy)(eio_req *req); /* called when request no longer needed */
157 void (*feed)(eio_req *req); /* only used for group requests */ 240 void (*feed)(eio_req *req); /* only used for group requests */
158 241
159 EIO_REQ_MEMBERS 242 EIO_REQ_MEMBERS
160 243
161 eio_req *grp, *grp_prev, *grp_next, *grp_first; /* private */ 244 eio_req *grp, *grp_prev, *grp_next, *grp_first; /* private */
162}; 245};
163 246
164/* _private_ flags */ 247/* _private_ request flags */
165enum { 248enum {
166 EIO_FLAG_CANCELLED = 0x01, /* request was cancelled */
167 EIO_FLAG_PTR1_FREE = 0x02, /* need to free(ptr1) */ 249 EIO_FLAG_PTR1_FREE = 0x01, /* need to free(ptr1) */
168 EIO_FLAG_PTR2_FREE = 0x04, /* need to free(ptr2) */ 250 EIO_FLAG_PTR2_FREE = 0x02, /* need to free(ptr2) */
169 EIO_FLAG_GROUPADD = 0x08 /* some request was added to the group */ 251 EIO_FLAG_GROUPADD = 0x04 /* some request was added to the group */
170}; 252};
171 253
172enum { 254/* undocumented/unsupported/private helper */
173 EIO_PRI_MIN = -4, 255/*void eio_page_align (void **addr, size_t *length);*/
174 EIO_PRI_MAX = 4,
175 EIO_PRI_DEFAULT = 0,
176};
177 256
178/* returns < 0 on error, errno set 257/* returns < 0 on error, errno set
179 * need_poll, if non-zero, will be called when results are available 258 * need_poll, if non-zero, will be called when results are available
180 * and eio_poll_cb needs to be invoked (it MUST NOT call eio_poll_cb itself). 259 * and eio_poll_cb needs to be invoked (it MUST NOT call eio_poll_cb itself).
181 * done_poll is called when the need to poll is gone. 260 * done_poll is called when the need to poll is gone.
… …
195 * maximum wanted number 274 * maximum wanted number
196 * or maximum idle number of threads */ 275 * or maximum idle number of threads */
197void eio_set_min_parallel (unsigned int nthreads); 276void eio_set_min_parallel (unsigned int nthreads);
198void eio_set_max_parallel (unsigned int nthreads); 277void eio_set_max_parallel (unsigned int nthreads);
199void eio_set_max_idle (unsigned int nthreads); 278void eio_set_max_idle (unsigned int nthreads);
279void eio_set_idle_timeout (unsigned int seconds);
200 280
201unsigned int eio_nreqs (void); /* number of requests in-flight */ 281unsigned int eio_nreqs (void); /* number of requests in-flight */
202unsigned int eio_nready (void); /* number of not-yet handled requests */ 282unsigned int eio_nready (void); /* number of not-yet handled requests */
203unsigned int eio_npending (void); /* numbe rof finished but unhandled requests */ 283unsigned int eio_npending (void); /* number of finished but unhandled requests */
204unsigned int eio_nthreads (void); /* number of worker threads in use currently */ 284unsigned int eio_nthreads (void); /* number of worker threads in use currently */
205 285
206/*****************************************************************************/ 286/*****************************************************************************/
207/* convinience wrappers */ 287/* convenience wrappers */
208 288
209#ifndef EIO_NO_WRAPPERS 289#ifndef EIO_NO_WRAPPERS
210eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */ 290eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */
211eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */ 291eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */
212eio_req *eio_sync (int pri, eio_cb cb, void *data); 292eio_req *eio_sync (int pri, eio_cb cb, void *data);
213eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data); 293eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data);
214eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data); 294eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data);
295eio_req *eio_syncfs (int fd, int pri, eio_cb cb, void *data);
215eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); 296eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data);
216eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); 297eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data);
298eio_req *eio_mlock (void *addr, size_t length, int pri, eio_cb cb, void *data);
299eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data);
217eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data); 300eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data);
301eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data);
218eio_req *eio_close (int fd, int pri, eio_cb cb, void *data); 302eio_req *eio_close (int fd, int pri, eio_cb cb, void *data);
219eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data); 303eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data);
220eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); 304eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data);
221eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); 305eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data);
222eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ 306eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
307eio_req *eio_fstatvfs (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
223eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); 308eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data);
224eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data); 309eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data);
225eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data); 310eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data);
226eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data); 311eio_req *eio_fchown (int fd, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data);
227eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data); 312eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data);
228eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data); 313eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data);
229eio_req *eio_open (const char *path, int flags, mode_t mode, int pri, eio_cb cb, void *data); 314eio_req *eio_open (const char *path, int flags, mode_t mode, int pri, eio_cb cb, void *data);
230eio_req *eio_utime (const char *path, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); 315eio_req *eio_utime (const char *path, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data);
231eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data); 316eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data);
232eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data); 317eio_req *eio_chown (const char *path, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data);
233eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data); 318eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data);
234eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data); 319eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data);
235eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ 320eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */
236eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data); 321eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data);
237eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data); 322eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data);
238eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ 323eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */
324eio_req *eio_realpath (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */
239eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ 325eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
240eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ 326eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
327eio_req *eio_statvfs (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
241eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data); 328eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data);
242eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data); 329eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data);
243eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data); 330eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data);
244eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data); 331eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data);
245eio_req *eio_custom (eio_cb execute, int pri, eio_cb cb, void *data); 332eio_req *eio_custom (void (*execute)(eio_req *), int pri, eio_cb cb, void *data);
246#endif 333#endif
247 334
248/*****************************************************************************/ 335/*****************************************************************************/
249/* groups */ 336/* groups */
250 337
… …
256 343
257/*****************************************************************************/ 344/*****************************************************************************/
258/* request api */ 345/* request api */
259 346
260/* true if the request was cancelled, useful in the invoke callback */ 347/* true if the request was cancelled, useful in the invoke callback */
261#define EIO_CANCELLED(req) ((req)->flags & EIO_FLAG_CANCELLED) 348#define EIO_CANCELLED(req) ((req)->cancelled)
262 349
263#define EIO_RESULT(req) ((req)->result) 350#define EIO_RESULT(req) ((req)->result)
264/* returns a pointer to the result buffer allocated by eio */ 351/* returns a pointer to the result buffer allocated by eio */
265#define EIO_BUF(req) ((req)->ptr2) 352#define EIO_BUF(req) ((req)->ptr2)
266#define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req)) 353#define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req))
354#define EIO_STATVFS_BUF(req) ((EIO_STRUCT_STATVFS *)EIO_BUF(req))
267#define EIO_PATH(req) ((char *)(req)->ptr1) 355#define EIO_PATH(req) ((char *)(req)->ptr1)
268 356
269/* submit a request for execution */ 357/* submit a request for execution */
270void eio_submit (eio_req *req); 358void eio_submit (eio_req *req);
271/* cancel a request as soon fast as possible, if possible */ 359/* cancel a request as soon fast as possible, if possible */
272void eio_cancel (eio_req *req); 360void eio_cancel (eio_req *req);
273/* destroy a request that has never been submitted */
274void eio_destroy (eio_req *req);
275 361
276/*****************************************************************************/ 362/*****************************************************************************/
277/* convinience functions */ 363/* convenience functions */
278 364
279ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count); 365eio_ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count);
280 366
281#ifdef __cplusplus 367#ifdef __cplusplus
282} 368}
283#endif 369#endif
284 370

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