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Comparing libeio/eio.h (file contents):
Revision 1.12 by root, Sat May 17 12:17:25 2008 UTC vs.
Revision 1.45 by root, Thu Sep 15 13:20:54 2011 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 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 *
… …
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/* for readdir */
94
95/* eio_readdir flags */
58enum { 96enum
97{
98 EIO_READDIR_DENTS = 0x01, /* ptr2 contains eio_dirents, not just the (unsorted) names */
99 EIO_READDIR_DIRS_FIRST = 0x02, /* dirents gets sorted into a good stat() ing order to find directories first */
100 EIO_READDIR_STAT_ORDER = 0x04, /* dirents gets sorted into a good stat() ing order to quickly stat all files */
101 EIO_READDIR_FOUND_UNKNOWN = 0x80, /* set by eio_readdir when *_ARRAY was set and any TYPE=UNKNOWN's were found */
102
103 EIO_READDIR_CUSTOM1 = 0x100, /* for use by apps */
104 EIO_READDIR_CUSTOM2 = 0x200 /* for use by apps */
105};
106
107/* using "typical" values in the hope that the compiler will do something sensible */
108enum eio_dtype
109{
110 EIO_DT_UNKNOWN = 0,
111 EIO_DT_FIFO = 1,
112 EIO_DT_CHR = 2,
113 EIO_DT_MPC = 3, /* multiplexed char device (v7+coherent) */
114 EIO_DT_DIR = 4,
115 EIO_DT_NAM = 5, /* xenix special named file */
116 EIO_DT_BLK = 6,
117 EIO_DT_MPB = 7, /* multiplexed block device (v7+coherent) */
118 EIO_DT_REG = 8,
119 EIO_DT_NWK = 9, /* HP-UX network special */
120 EIO_DT_CMP = 9, /* VxFS compressed */
121 EIO_DT_LNK = 10,
122 /* DT_SHAD = 11,*/
123 EIO_DT_SOCK = 12,
124 EIO_DT_DOOR = 13, /* solaris door */
125 EIO_DT_WHT = 14,
126 EIO_DT_MAX = 15 /* highest DT_VALUE ever, hopefully */
127};
128
129struct eio_dirent
130{
131 int nameofs; /* offset of null-terminated name string in (char *)req->ptr2 */
132 unsigned short namelen; /* size of filename without trailing 0 */
133 unsigned char type; /* one of EIO_DT_* */
134 signed char score; /* internal use */
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
150};
151
152/* eio_sync_file_range flags */
153enum
154{
155 EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1,
156 EIO_SYNC_FILE_RANGE_WRITE = 2,
157 EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4
158};
159
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;
168
169/* the eio request structure */
170enum
171{
172 EIO_CUSTOM,
59 EIO_OPEN, EIO_CLOSE, EIO_DUP2, 173 EIO_OPEN, EIO_CLOSE, EIO_DUP2,
60 EIO_READ, EIO_WRITE, 174 EIO_READ, EIO_WRITE,
61 EIO_READAHEAD, EIO_SENDFILE, 175 EIO_READAHEAD, EIO_SENDFILE,
62 EIO_STAT, EIO_LSTAT, EIO_FSTAT, 176 EIO_STAT, EIO_LSTAT, EIO_FSTAT,
177 EIO_STATVFS, EIO_FSTATVFS,
63 EIO_TRUNCATE, EIO_FTRUNCATE, 178 EIO_TRUNCATE, EIO_FTRUNCATE,
64 EIO_UTIME, EIO_FUTIME, 179 EIO_UTIME, EIO_FUTIME,
65 EIO_CHMOD, EIO_FCHMOD, 180 EIO_CHMOD, EIO_FCHMOD,
66 EIO_CHOWN, EIO_FCHOWN, 181 EIO_CHOWN, EIO_FCHOWN,
67 EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, 182 EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, EIO_SYNCFS,
183 EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE, EIO_FALLOCATE,
184 EIO_MLOCK, EIO_MLOCKALL,
68 EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME, 185 EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME,
69 EIO_MKNOD, EIO_READDIR, 186 EIO_MKNOD, EIO_READDIR,
70 EIO_LINK, EIO_SYMLINK, EIO_READLINK, 187 EIO_LINK, EIO_SYMLINK, EIO_READLINK, EIO_REALPATH,
71 EIO_GROUP, EIO_NOP, 188 EIO_GROUP, EIO_NOP,
72 EIO_BUSY, 189 EIO_BUSY
73}; 190};
74 191
75typedef double eio_tstamp; /* feel free to use double in your code directly */ 192/* mlockall constants */
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};
109
110enum { 193enum
111 EIO_FLAG_CANCELLED = 0x01, /* request was cancelled */ 194{
112 EIO_FLAG_PTR1_FREE = 0x02, /* need to free(ptr1) */ 195 EIO_MCL_CURRENT = 1,
113 EIO_FLAG_PTR2_FREE = 0x04 /* need to free(ptr2) */ 196 EIO_MCL_FUTURE = 2,
114}; 197};
198
199/* request priorities */
115 200
116enum { 201enum {
117 EIO_PRI_MIN = -4, 202 EIO_PRI_MIN = -4,
118 EIO_PRI_MAX = 4, 203 EIO_PRI_MAX = 4,
119
120 EIO_PRI_DEFAULT = 0, 204 EIO_PRI_DEFAULT = 0,
121}; 205};
206
207/* eio request structure */
208/* this structure is mostly read-only */
209/* when initialising it, all members must be zero-initialised */
210struct eio_req
211{
212 eio_req volatile *next; /* private ETP */
213
214 eio_ssize_t result; /* result of syscall, e.g. result = read (... */
215 off_t offs; /* read, write, truncate, readahead, sync_file_range, fallocate: file offset, mknod: dev_t */
216 size_t size; /* read, write, readahead, sendfile, msync, mlock, sync_file_range, fallocate: length */
217 void *ptr1; /* all applicable requests: pathname, old name; readdir: optional eio_dirents */
218 void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */
219 eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */
220 eio_tstamp nv2; /* utime, futime: mtime */
221
222 int type; /* EIO_xxx constant ETP */
223 int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, mlockall, readdir: flags */
224 long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, sync_file_range, fallocate: flags */
225 long int3; /* chown, fchown: gid */
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
233
234 unsigned char flags; /* private */
235 signed char pri; /* the priority */
236
237 void *data;
238 eio_cb finish;
239 void (*destroy)(eio_req *req); /* called when request no longer needed */
240 void (*feed)(eio_req *req); /* only used for group requests */
241
242 EIO_REQ_MEMBERS
243
244 eio_req *grp, *grp_prev, *grp_next, *grp_first; /* private */
245};
246
247/* _private_ request flags */
248enum {
249 EIO_FLAG_PTR1_FREE = 0x01, /* need to free(ptr1) */
250 EIO_FLAG_PTR2_FREE = 0x02, /* need to free(ptr2) */
251 EIO_FLAG_GROUPADD = 0x04 /* some request was added to the group */
252};
253
254/* undocumented/unsupported/private helper */
255/*void eio_page_align (void **addr, size_t *length);*/
122 256
123/* returns < 0 on error, errno set 257/* returns < 0 on error, errno set
124 * 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
125 * 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).
126 * done_poll is called when the need to poll is gone. 260 * done_poll is called when the need to poll is gone.
… …
140 * maximum wanted number 274 * maximum wanted number
141 * or maximum idle number of threads */ 275 * or maximum idle number of threads */
142void eio_set_min_parallel (unsigned int nthreads); 276void eio_set_min_parallel (unsigned int nthreads);
143void eio_set_max_parallel (unsigned int nthreads); 277void eio_set_max_parallel (unsigned int nthreads);
144void eio_set_max_idle (unsigned int nthreads); 278void eio_set_max_idle (unsigned int nthreads);
279void eio_set_idle_timeout (unsigned int seconds);
145 280
146unsigned int eio_nreqs (void); /* number of requests in-flight */ 281unsigned int eio_nreqs (void); /* number of requests in-flight */
147unsigned int eio_nready (void); /* number of not-yet handled requests */ 282unsigned int eio_nready (void); /* number of not-yet handled requests */
148unsigned int eio_npending (void); /* numbe rof finished but unhandled requests */ 283unsigned int eio_npending (void); /* number of finished but unhandled requests */
149unsigned int eio_nthreads (void); /* number of worker threads in use currently */ 284unsigned int eio_nthreads (void); /* number of worker threads in use currently */
150 285
151/*****************************************************************************/ 286/*****************************************************************************/
152/* convinience wrappers */ 287/* convenience wrappers */
153 288
154#ifndef EIO_NO_WRAPPERS 289#ifndef EIO_NO_WRAPPERS
155eio_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 */
156eio_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 */
157eio_req *eio_sync (int pri, eio_cb cb, void *data); 292eio_req *eio_sync (int pri, eio_cb cb, void *data);
158eio_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);
159eio_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);
296eio_req *eio_msync (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);
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);
160eio_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);
161eio_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);
162eio_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);
163eio_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);
164eio_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 */
165eio_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);
166eio_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);
167eio_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);
168eio_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);
169eio_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);
170eio_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);
171eio_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);
172eio_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);
173eio_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);
174eio_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);
175eio_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);
176eio_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);
177eio_req *eio_readdir (const char *path, 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 */
178eio_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);
179eio_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);
180eio_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 */
181eio_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 */
182eio_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 */
183eio_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);
184eio_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);
185eio_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);
186eio_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);
332eio_req *eio_custom (void (*execute)(eio_req *), int pri, eio_cb cb, void *data);
187#endif 333#endif
188 334
189/*****************************************************************************/ 335/*****************************************************************************/
190/* groups */ 336/* groups */
191 337
… …
197 343
198/*****************************************************************************/ 344/*****************************************************************************/
199/* request api */ 345/* request api */
200 346
201/* true if the request was cancelled, useful in the invoke callback */ 347/* true if the request was cancelled, useful in the invoke callback */
202#define EIO_CANCELLED(req) ((req)->flags & EIO_FLAG_CANCELLED) 348#define EIO_CANCELLED(req) ((req)->cancelled)
203 349
204#define EIO_RESULT(req) ((req)->result) 350#define EIO_RESULT(req) ((req)->result)
205/* returns a pointer to the result buffer allocated by eio */ 351/* returns a pointer to the result buffer allocated by eio */
206#define EIO_BUF(req) ((req)->ptr2) 352#define EIO_BUF(req) ((req)->ptr2)
207#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))
208#define EIO_PATH(req) ((char *)(req)->ptr1) 355#define EIO_PATH(req) ((char *)(req)->ptr1)
209 356
210/* submit a request for execution */ 357/* submit a request for execution */
211void eio_submit (eio_req *req); 358void eio_submit (eio_req *req);
212/* cancel a request as soon fast as possible, if possible */ 359/* cancel a request as soon fast as possible, if possible */
213void eio_cancel (eio_req *req); 360void eio_cancel (eio_req *req);
214/* destroy a request that has never been submitted */
215void eio_destroy (eio_req *req);
216 361
217/*****************************************************************************/ 362/*****************************************************************************/
218/* convinience functions */ 363/* convenience functions */
219 364
220ssize_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);
221 366
367#ifdef __cplusplus
368}
222#endif 369#endif
223 370
371#endif
372

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