ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libeio/eio.h
(Generate patch)

Comparing libeio/eio.h (file contents):
Revision 1.35 by root, Tue Jul 5 20:34:42 2011 UTC vs.
Revision 1.41 by root, Tue Jul 19 05:10:46 2011 UTC

56#ifndef EIO_REQ_MEMBERS 56#ifndef EIO_REQ_MEMBERS
57# define EIO_REQ_MEMBERS 57# define EIO_REQ_MEMBERS
58#endif 58#endif
59 59
60#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
61# 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 typedef intptr_t eio_ssize_t; /* or SSIZE_T */
73 #if __GNUC__
74 typedef long long eio_ino_t;
75 #else
76 typedef __int64 eio_ino_t; /* unsigned not supported by msvc */
77 #endif
78#else
79 typedef uid_t eio_uid_t;
80 typedef gid_t eio_gid_t;
81 typedef ssize_t eio_ssize_t;
82 typedef ino_t eio_ino_t;
62#endif 83#endif
63 84
64#ifndef EIO_STRUCT_STATVFS 85#ifndef EIO_STRUCT_STATVFS
65# define EIO_STRUCT_STATVFS struct statvfs 86# define EIO_STRUCT_STATVFS struct statvfs
66#endif 87#endif
105{ 126{
106 int nameofs; /* offset of null-terminated name string in (char *)req->ptr2 */ 127 int nameofs; /* offset of null-terminated name string in (char *)req->ptr2 */
107 unsigned short namelen; /* size of filename without trailing 0 */ 128 unsigned short namelen; /* size of filename without trailing 0 */
108 unsigned char type; /* one of EIO_DT_* */ 129 unsigned char type; /* one of EIO_DT_* */
109 signed char score; /* internal use */ 130 signed char score; /* internal use */
110 ino_t inode; /* the inode number, if available, otherwise unspecified */ 131 eio_ino_t inode; /* the inode number, if available, otherwise unspecified */
111}; 132};
112 133
113/* eio_msync flags */ 134/* eio_msync flags */
114enum 135enum
115{ 136{
117 EIO_MS_INVALIDATE = 2, 138 EIO_MS_INVALIDATE = 2,
118 EIO_MS_SYNC = 4 139 EIO_MS_SYNC = 4
119}; 140};
120 141
121/* eio_mtouch flags */ 142/* eio_mtouch flags */
122
123enum 143enum
124{ 144{
125 EIO_MT_MODIFY = 1 145 EIO_MT_MODIFY = 1
126}; 146};
127 147
128/* eio_sync_file_range flags */ 148/* eio_sync_file_range flags */
129
130enum 149enum
131{ 150{
132 EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1, 151 EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1,
133 EIO_SYNC_FILE_RANGE_WRITE = 2, 152 EIO_SYNC_FILE_RANGE_WRITE = 2,
134 EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4 153 EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4
135}; 154};
136 155
137typedef double eio_tstamp; /* feel free to use double in your code directly */ 156/* eio_fallocate flags */
157enum
158{
159 EIO_FALLOC_FL_KEEP_SIZE = 1 /* MUST match the value in linux/falloc.h */
160};
161
162/* timestamps and differences - feel free to use double in your code directly */
163typedef double eio_tstamp;
138 164
139/* the eio request structure */ 165/* the eio request structure */
140
141enum 166enum
142{ 167{
143 EIO_CUSTOM, 168 EIO_CUSTOM,
144 EIO_OPEN, EIO_CLOSE, EIO_DUP2, 169 EIO_OPEN, EIO_CLOSE, EIO_DUP2,
145 EIO_READ, EIO_WRITE, 170 EIO_READ, EIO_WRITE,
149 EIO_TRUNCATE, EIO_FTRUNCATE, 174 EIO_TRUNCATE, EIO_FTRUNCATE,
150 EIO_UTIME, EIO_FUTIME, 175 EIO_UTIME, EIO_FUTIME,
151 EIO_CHMOD, EIO_FCHMOD, 176 EIO_CHMOD, EIO_FCHMOD,
152 EIO_CHOWN, EIO_FCHOWN, 177 EIO_CHOWN, EIO_FCHOWN,
153 EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, 178 EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC,
154 EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE, 179 EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE, EIO_FALLOCATE,
155 EIO_MLOCK, EIO_MLOCKALL, 180 EIO_MLOCK, EIO_MLOCKALL,
156 EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME, 181 EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME,
157 EIO_MKNOD, EIO_READDIR, 182 EIO_MKNOD, EIO_READDIR,
158 EIO_LINK, EIO_SYMLINK, EIO_READLINK, EIO_REALPATH, 183 EIO_LINK, EIO_SYMLINK, EIO_READLINK, EIO_REALPATH,
159 EIO_GROUP, EIO_NOP, 184 EIO_GROUP, EIO_NOP,
180/* when initialising it, all members must be zero-initialised */ 205/* when initialising it, all members must be zero-initialised */
181struct eio_req 206struct eio_req
182{ 207{
183 eio_req volatile *next; /* private ETP */ 208 eio_req volatile *next; /* private ETP */
184 209
185 ssize_t result; /* result of syscall, e.g. result = read (... */ 210 eio_ssize_t result; /* result of syscall, e.g. result = read (... */
186 off_t offs; /* read, write, truncate, readahead, sync_file_range: file offset, mknod: dev_t */ 211 off_t offs; /* read, write, truncate, readahead, sync_file_range, fallocate: file offset, mknod: dev_t */
187 size_t size; /* read, write, readahead, sendfile, msync, mlock, sync_file_range: length */ 212 size_t size; /* read, write, readahead, sendfile, msync, mlock, sync_file_range, fallocate: length */
188 void *ptr1; /* all applicable requests: pathname, old name; readdir: optional eio_dirents */ 213 void *ptr1; /* all applicable requests: pathname, old name; readdir: optional eio_dirents */
189 void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */ 214 void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */
190 eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */ 215 eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */
191 eio_tstamp nv2; /* utime, futime: mtime */ 216 eio_tstamp nv2; /* utime, futime: mtime */
192 217
193 int type; /* EIO_xxx constant ETP */ 218 int type; /* EIO_xxx constant ETP */
194 int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, mlockall, readdir: flags */ 219 int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, mlockall, readdir: flags */
195 long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, sync_file_range: flags */ 220 long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, sync_file_range, fallocate: flags */
196 long int3; /* chown, fchown: gid */ 221 long int3; /* chown, fchown: gid */
197 int errorno; /* errno value on syscall return */ 222 int errorno; /* errno value on syscall return */
198 223
199#if __i386 || __amd64 224#if __i386 || __amd64
200 unsigned char cancelled; 225 unsigned char cancelled;
249void eio_set_max_idle (unsigned int nthreads); 274void eio_set_max_idle (unsigned int nthreads);
250void eio_set_idle_timeout (unsigned int seconds); 275void eio_set_idle_timeout (unsigned int seconds);
251 276
252unsigned int eio_nreqs (void); /* number of requests in-flight */ 277unsigned int eio_nreqs (void); /* number of requests in-flight */
253unsigned int eio_nready (void); /* number of not-yet handled requests */ 278unsigned int eio_nready (void); /* number of not-yet handled requests */
254unsigned int eio_npending (void); /* numbe rof finished but unhandled requests */ 279unsigned int eio_npending (void); /* number of finished but unhandled requests */
255unsigned int eio_nthreads (void); /* number of worker threads in use currently */ 280unsigned int eio_nthreads (void); /* number of worker threads in use currently */
256 281
257/*****************************************************************************/ 282/*****************************************************************************/
258/* convenience wrappers */ 283/* convenience wrappers */
259 284
266eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); 291eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data);
267eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); 292eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data);
268eio_req *eio_mlock (void *addr, size_t length, int pri, eio_cb cb, void *data); 293eio_req *eio_mlock (void *addr, size_t length, int pri, eio_cb cb, void *data);
269eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data); 294eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data);
270eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data); 295eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data);
296eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data);
271eio_req *eio_close (int fd, int pri, eio_cb cb, void *data); 297eio_req *eio_close (int fd, int pri, eio_cb cb, void *data);
272eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data); 298eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data);
273eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); 299eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data);
274eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); 300eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data);
275eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ 301eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
276eio_req *eio_fstatvfs (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ 302eio_req *eio_fstatvfs (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
277eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); 303eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data);
278eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data); 304eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data);
279eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data); 305eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data);
280eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data); 306eio_req *eio_fchown (int fd, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data);
281eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data); 307eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data);
282eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data); 308eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data);
283eio_req *eio_open (const char *path, int flags, mode_t mode, int pri, eio_cb cb, void *data); 309eio_req *eio_open (const char *path, int flags, mode_t mode, int pri, eio_cb cb, void *data);
284eio_req *eio_utime (const char *path, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); 310eio_req *eio_utime (const char *path, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data);
285eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data); 311eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data);
286eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data); 312eio_req *eio_chown (const char *path, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data);
287eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data); 313eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data);
288eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data); 314eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data);
289eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ 315eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */
290eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data); 316eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data);
291eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data); 317eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data);
329void eio_cancel (eio_req *req); 355void eio_cancel (eio_req *req);
330 356
331/*****************************************************************************/ 357/*****************************************************************************/
332/* convenience functions */ 358/* convenience functions */
333 359
334ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count); 360eio_ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count);
335 361
336#ifdef __cplusplus 362#ifdef __cplusplus
337} 363}
338#endif 364#endif
339 365

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines