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 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 |
44 | extern "C" { |
44 | extern "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 | |
50 | typedef struct eio_req eio_req; |
51 | typedef struct eio_req eio_req; |
51 | typedef struct eio_dirent eio_dirent; |
52 | typedef 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 | typedef intptr_t eio_ssize_t; /* or SSIZE_T */ |
|
|
73 | #else |
|
|
74 | typedef uid_t eio_uid_t; |
|
|
75 | typedef gid_t eio_gid_t; |
|
|
76 | typedef ssize_t eio_ssize_t; |
61 | #endif |
77 | #endif |
62 | |
78 | |
63 | #ifndef EIO_STRUCT_STATVFS |
79 | #ifndef EIO_STRUCT_STATVFS |
64 | # define EIO_STRUCT_STATVFS struct statvfs |
80 | # define EIO_STRUCT_STATVFS struct statvfs |
65 | #endif |
81 | #endif |
66 | |
82 | |
67 | /* for readdir */ |
83 | /* for readdir */ |
68 | |
84 | |
69 | /* eio_readdir flags */ |
85 | /* eio_readdir flags */ |
70 | enum { |
86 | enum |
|
|
87 | { |
71 | EIO_READDIR_DENTS = 0x01, /* ptr2 contains eio_dirents, not just the (unsorted) names */ |
88 | EIO_READDIR_DENTS = 0x01, /* ptr2 contains eio_dirents, not just the (unsorted) names */ |
72 | EIO_READDIR_DIRS_FIRST = 0x02, /* dirents gets sorted into a good stat() ing order to find directories first */ |
89 | EIO_READDIR_DIRS_FIRST = 0x02, /* dirents gets sorted into a good stat() ing order to find directories first */ |
73 | EIO_READDIR_STAT_ORDER = 0x04, /* dirents gets sorted into a good stat() ing order to quickly stat all files */ |
90 | EIO_READDIR_STAT_ORDER = 0x04, /* dirents gets sorted into a good stat() ing order to quickly stat all files */ |
74 | EIO_READDIR_FOUND_UNKNOWN = 0x80, /* set by eio_readdir when *_ARRAY was set and any TYPE=UNKNOWN's were found */ |
91 | EIO_READDIR_FOUND_UNKNOWN = 0x80, /* set by eio_readdir when *_ARRAY was set and any TYPE=UNKNOWN's were found */ |
75 | |
92 | |
76 | EIO_READDIR_CUSTOM1 = 0x100, /* for use by apps */ |
93 | EIO_READDIR_CUSTOM1 = 0x100, /* for use by apps */ |
77 | EIO_READDIR_CUSTOM2 = 0x200 /* for use by apps */ |
94 | EIO_READDIR_CUSTOM2 = 0x200 /* for use by apps */ |
78 | }; |
95 | }; |
79 | |
96 | |
80 | /* using "typical" values in the hope that the compiler will do something sensible */ |
97 | /* using "typical" values in the hope that the compiler will do something sensible */ |
81 | enum eio_dtype { |
98 | enum eio_dtype |
|
|
99 | { |
82 | EIO_DT_UNKNOWN = 0, |
100 | EIO_DT_UNKNOWN = 0, |
83 | EIO_DT_FIFO = 1, |
101 | EIO_DT_FIFO = 1, |
84 | EIO_DT_CHR = 2, |
102 | EIO_DT_CHR = 2, |
85 | EIO_DT_MPC = 3, /* multiplexed char device (v7+coherent) */ |
103 | EIO_DT_MPC = 3, /* multiplexed char device (v7+coherent) */ |
86 | EIO_DT_DIR = 4, |
104 | EIO_DT_DIR = 4, |
… | |
… | |
96 | EIO_DT_DOOR = 13, /* solaris door */ |
114 | EIO_DT_DOOR = 13, /* solaris door */ |
97 | EIO_DT_WHT = 14, |
115 | EIO_DT_WHT = 14, |
98 | EIO_DT_MAX = 15 /* highest DT_VALUE ever, hopefully */ |
116 | EIO_DT_MAX = 15 /* highest DT_VALUE ever, hopefully */ |
99 | }; |
117 | }; |
100 | |
118 | |
101 | struct eio_dirent { |
119 | struct eio_dirent |
|
|
120 | { |
102 | int nameofs; /* offset of null-terminated name string in (char *)req->ptr2 */ |
121 | int nameofs; /* offset of null-terminated name string in (char *)req->ptr2 */ |
103 | unsigned short namelen; /* size of filename without trailing 0 */ |
122 | unsigned short namelen; /* size of filename without trailing 0 */ |
104 | unsigned char type; /* one of EIO_DT_* */ |
123 | unsigned char type; /* one of EIO_DT_* */ |
105 | signed char score; /* internal use */ |
124 | signed char score; /* internal use */ |
106 | ino_t inode; /* the inode number, if available, otherwise unspecified */ |
125 | ino_t inode; /* the inode number, if available, otherwise unspecified */ |
107 | }; |
126 | }; |
108 | |
127 | |
109 | /* eio_msync flags */ |
128 | /* eio_msync flags */ |
110 | enum { |
129 | enum |
|
|
130 | { |
111 | EIO_MS_ASYNC = 1, |
131 | EIO_MS_ASYNC = 1, |
112 | EIO_MS_INVALIDATE = 2, |
132 | EIO_MS_INVALIDATE = 2, |
113 | EIO_MS_SYNC = 4 |
133 | EIO_MS_SYNC = 4 |
114 | }; |
134 | }; |
115 | |
135 | |
116 | /* eio_mtouch flags */ |
136 | /* eio_mtouch flags */ |
117 | |
|
|
118 | enum { |
137 | enum |
|
|
138 | { |
119 | EIO_MT_MODIFY = 1 |
139 | EIO_MT_MODIFY = 1 |
120 | }; |
140 | }; |
121 | |
141 | |
122 | /* eio_sync_file_range flags */ |
142 | /* eio_sync_file_range flags */ |
123 | |
|
|
124 | enum { |
143 | enum |
|
|
144 | { |
125 | EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1, |
145 | EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1, |
126 | EIO_SYNC_FILE_RANGE_WRITE = 2, |
146 | EIO_SYNC_FILE_RANGE_WRITE = 2, |
127 | EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4 |
147 | EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4 |
128 | }; |
148 | }; |
129 | |
149 | |
130 | typedef double eio_tstamp; /* feel free to use double in your code directly */ |
150 | /* eio_fallocate flags */ |
|
|
151 | enum |
|
|
152 | { |
|
|
153 | EIO_FALLOC_FL_KEEP_SIZE = 1 /* MUST match the value in linux/falloc.h */ |
|
|
154 | }; |
|
|
155 | |
|
|
156 | /* timestamps and differences - feel free to use double in your code directly */ |
|
|
157 | typedef double eio_tstamp; |
131 | |
158 | |
132 | /* the eio request structure */ |
159 | /* the eio request structure */ |
133 | |
|
|
134 | enum { |
160 | enum |
|
|
161 | { |
135 | EIO_CUSTOM, |
162 | EIO_CUSTOM, |
136 | EIO_OPEN, EIO_CLOSE, EIO_DUP2, |
163 | EIO_OPEN, EIO_CLOSE, EIO_DUP2, |
137 | EIO_READ, EIO_WRITE, |
164 | EIO_READ, EIO_WRITE, |
138 | EIO_READAHEAD, EIO_SENDFILE, |
165 | EIO_READAHEAD, EIO_SENDFILE, |
139 | EIO_STAT, EIO_LSTAT, EIO_FSTAT, |
166 | EIO_STAT, EIO_LSTAT, EIO_FSTAT, |
… | |
… | |
141 | EIO_TRUNCATE, EIO_FTRUNCATE, |
168 | EIO_TRUNCATE, EIO_FTRUNCATE, |
142 | EIO_UTIME, EIO_FUTIME, |
169 | EIO_UTIME, EIO_FUTIME, |
143 | EIO_CHMOD, EIO_FCHMOD, |
170 | EIO_CHMOD, EIO_FCHMOD, |
144 | EIO_CHOWN, EIO_FCHOWN, |
171 | EIO_CHOWN, EIO_FCHOWN, |
145 | EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, |
172 | EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, |
146 | EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE, |
173 | EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE, EIO_FALLOCATE, |
|
|
174 | EIO_MLOCK, EIO_MLOCKALL, |
147 | EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME, |
175 | EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME, |
148 | EIO_MKNOD, EIO_READDIR, |
176 | EIO_MKNOD, EIO_READDIR, |
149 | EIO_LINK, EIO_SYMLINK, EIO_READLINK, |
177 | EIO_LINK, EIO_SYMLINK, EIO_READLINK, EIO_REALPATH, |
150 | EIO_GROUP, EIO_NOP, |
178 | EIO_GROUP, EIO_NOP, |
151 | EIO_BUSY |
179 | EIO_BUSY |
|
|
180 | }; |
|
|
181 | |
|
|
182 | /* mlockall constants */ |
|
|
183 | enum |
|
|
184 | { |
|
|
185 | EIO_MCL_CURRENT = 1, |
|
|
186 | EIO_MCL_FUTURE = 2, |
|
|
187 | }; |
|
|
188 | |
|
|
189 | /* request priorities */ |
|
|
190 | |
|
|
191 | enum { |
|
|
192 | EIO_PRI_MIN = -4, |
|
|
193 | EIO_PRI_MAX = 4, |
|
|
194 | EIO_PRI_DEFAULT = 0, |
152 | }; |
195 | }; |
153 | |
196 | |
154 | /* eio request structure */ |
197 | /* eio request structure */ |
155 | /* this structure is mostly read-only */ |
198 | /* this structure is mostly read-only */ |
156 | /* when initialising it, all members must be zero-initialised */ |
199 | /* when initialising it, all members must be zero-initialised */ |
157 | struct eio_req |
200 | struct eio_req |
158 | { |
201 | { |
159 | eio_req volatile *next; /* private ETP */ |
202 | eio_req volatile *next; /* private ETP */ |
160 | |
203 | |
161 | ssize_t result; /* result of syscall, e.g. result = read (... */ |
204 | eio_ssize_t result; /* result of syscall, e.g. result = read (... */ |
162 | off_t offs; /* read, write, truncate, readahead, sync_file_range: file offset */ |
205 | off_t offs; /* read, write, truncate, readahead, sync_file_range, fallocate: file offset, mknod: dev_t */ |
163 | size_t size; /* read, write, readahead, sendfile, msync, sync_file_range: length */ |
206 | size_t size; /* read, write, readahead, sendfile, msync, mlock, sync_file_range, fallocate: length */ |
164 | void *ptr1; /* all applicable requests: pathname, old name; readdir: optional eio_dirents */ |
207 | void *ptr1; /* all applicable requests: pathname, old name; readdir: optional eio_dirents */ |
165 | void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */ |
208 | void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */ |
166 | eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */ |
209 | eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */ |
167 | eio_tstamp nv2; /* utime, futime: mtime */ |
210 | eio_tstamp nv2; /* utime, futime: mtime */ |
168 | |
211 | |
169 | int type; /* EIO_xxx constant ETP */ |
212 | int type; /* EIO_xxx constant ETP */ |
170 | int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, readdir: flags */ |
213 | int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, mlockall, readdir: flags */ |
171 | long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, sync_file_range: flags */ |
214 | long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, sync_file_range, fallocate: flags */ |
172 | long int3; /* chown, fchown: gid; mknod: dev_t */ |
215 | long int3; /* chown, fchown: gid */ |
173 | int errorno; /* errno value on syscall return */ |
216 | int errorno; /* errno value on syscall return */ |
|
|
217 | |
|
|
218 | #if __i386 || __amd64 |
|
|
219 | unsigned char cancelled; |
|
|
220 | #else |
|
|
221 | sig_atomic_t cancelled; |
|
|
222 | #endif |
174 | |
223 | |
175 | unsigned char flags; /* private */ |
224 | unsigned char flags; /* private */ |
176 | signed char pri; /* the priority */ |
225 | signed char pri; /* the priority */ |
177 | |
226 | |
178 | void *data; |
227 | void *data; |
179 | eio_cb finish; |
228 | eio_cb finish; |
180 | void (*destroy)(eio_req *req); /* called when requets no longer needed */ |
229 | void (*destroy)(eio_req *req); /* called when request no longer needed */ |
181 | void (*feed)(eio_req *req); /* only used for group requests */ |
230 | void (*feed)(eio_req *req); /* only used for group requests */ |
182 | |
231 | |
183 | EIO_REQ_MEMBERS |
232 | EIO_REQ_MEMBERS |
184 | |
233 | |
185 | eio_req *grp, *grp_prev, *grp_next, *grp_first; /* private */ |
234 | eio_req *grp, *grp_prev, *grp_next, *grp_first; /* private */ |
186 | }; |
235 | }; |
187 | |
236 | |
188 | /* _private_ flags */ |
237 | /* _private_ request flags */ |
189 | enum { |
238 | enum { |
190 | EIO_FLAG_CANCELLED = 0x01, /* request was cancelled */ |
|
|
191 | EIO_FLAG_PTR1_FREE = 0x02, /* need to free(ptr1) */ |
239 | EIO_FLAG_PTR1_FREE = 0x01, /* need to free(ptr1) */ |
192 | EIO_FLAG_PTR2_FREE = 0x04, /* need to free(ptr2) */ |
240 | EIO_FLAG_PTR2_FREE = 0x02, /* need to free(ptr2) */ |
193 | EIO_FLAG_GROUPADD = 0x08 /* some request was added to the group */ |
241 | EIO_FLAG_GROUPADD = 0x04 /* some request was added to the group */ |
194 | }; |
242 | }; |
195 | |
243 | |
196 | enum { |
244 | /* undocumented/unsupported/private helper */ |
197 | EIO_PRI_MIN = -4, |
245 | /*void eio_page_align (void **addr, size_t *length);*/ |
198 | EIO_PRI_MAX = 4, |
|
|
199 | EIO_PRI_DEFAULT = 0, |
|
|
200 | }; |
|
|
201 | |
246 | |
202 | /* returns < 0 on error, errno set |
247 | /* returns < 0 on error, errno set |
203 | * need_poll, if non-zero, will be called when results are available |
248 | * need_poll, if non-zero, will be called when results are available |
204 | * and eio_poll_cb needs to be invoked (it MUST NOT call eio_poll_cb itself). |
249 | * and eio_poll_cb needs to be invoked (it MUST NOT call eio_poll_cb itself). |
205 | * done_poll is called when the need to poll is gone. |
250 | * done_poll is called when the need to poll is gone. |
… | |
… | |
219 | * maximum wanted number |
264 | * maximum wanted number |
220 | * or maximum idle number of threads */ |
265 | * or maximum idle number of threads */ |
221 | void eio_set_min_parallel (unsigned int nthreads); |
266 | void eio_set_min_parallel (unsigned int nthreads); |
222 | void eio_set_max_parallel (unsigned int nthreads); |
267 | void eio_set_max_parallel (unsigned int nthreads); |
223 | void eio_set_max_idle (unsigned int nthreads); |
268 | void eio_set_max_idle (unsigned int nthreads); |
|
|
269 | void eio_set_idle_timeout (unsigned int seconds); |
224 | |
270 | |
225 | unsigned int eio_nreqs (void); /* number of requests in-flight */ |
271 | unsigned int eio_nreqs (void); /* number of requests in-flight */ |
226 | unsigned int eio_nready (void); /* number of not-yet handled requests */ |
272 | unsigned int eio_nready (void); /* number of not-yet handled requests */ |
227 | unsigned int eio_npending (void); /* numbe rof finished but unhandled requests */ |
273 | unsigned int eio_npending (void); /* number of finished but unhandled requests */ |
228 | unsigned int eio_nthreads (void); /* number of worker threads in use currently */ |
274 | unsigned int eio_nthreads (void); /* number of worker threads in use currently */ |
229 | |
275 | |
230 | /*****************************************************************************/ |
276 | /*****************************************************************************/ |
231 | /* convinience wrappers */ |
277 | /* convenience wrappers */ |
232 | |
278 | |
233 | #ifndef EIO_NO_WRAPPERS |
279 | #ifndef EIO_NO_WRAPPERS |
234 | eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */ |
280 | eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */ |
235 | eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */ |
281 | eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */ |
236 | eio_req *eio_sync (int pri, eio_cb cb, void *data); |
282 | eio_req *eio_sync (int pri, eio_cb cb, void *data); |
237 | eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data); |
283 | eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data); |
238 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data); |
284 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data); |
239 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
285 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
240 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
286 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
|
|
287 | eio_req *eio_mlock (void *addr, size_t length, int pri, eio_cb cb, void *data); |
|
|
288 | eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data); |
241 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data); |
289 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data); |
|
|
290 | eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data); |
242 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data); |
291 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data); |
243 | eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data); |
292 | eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data); |
244 | eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
293 | eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
245 | eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
294 | eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
246 | eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
295 | eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
… | |
… | |
259 | eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data); |
308 | eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data); |
260 | eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
309 | eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
261 | eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data); |
310 | eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data); |
262 | eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data); |
311 | eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data); |
263 | eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
312 | eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
|
|
313 | eio_req *eio_realpath (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
264 | eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
314 | eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
265 | eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
315 | eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
266 | eio_req *eio_statvfs (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
316 | eio_req *eio_statvfs (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
267 | eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data); |
317 | eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data); |
268 | eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
318 | eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
269 | eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
319 | eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
270 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
320 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
271 | eio_req *eio_custom (eio_cb execute, int pri, eio_cb cb, void *data); |
321 | eio_req *eio_custom (void (*execute)(eio_req *), int pri, eio_cb cb, void *data); |
272 | #endif |
322 | #endif |
273 | |
323 | |
274 | /*****************************************************************************/ |
324 | /*****************************************************************************/ |
275 | /* groups */ |
325 | /* groups */ |
276 | |
326 | |
… | |
… | |
282 | |
332 | |
283 | /*****************************************************************************/ |
333 | /*****************************************************************************/ |
284 | /* request api */ |
334 | /* request api */ |
285 | |
335 | |
286 | /* true if the request was cancelled, useful in the invoke callback */ |
336 | /* true if the request was cancelled, useful in the invoke callback */ |
287 | #define EIO_CANCELLED(req) ((req)->flags & EIO_FLAG_CANCELLED) |
337 | #define EIO_CANCELLED(req) ((req)->cancelled) |
288 | |
338 | |
289 | #define EIO_RESULT(req) ((req)->result) |
339 | #define EIO_RESULT(req) ((req)->result) |
290 | /* returns a pointer to the result buffer allocated by eio */ |
340 | /* returns a pointer to the result buffer allocated by eio */ |
291 | #define EIO_BUF(req) ((req)->ptr2) |
341 | #define EIO_BUF(req) ((req)->ptr2) |
292 | #define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req)) |
342 | #define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req)) |
… | |
… | |
295 | |
345 | |
296 | /* submit a request for execution */ |
346 | /* submit a request for execution */ |
297 | void eio_submit (eio_req *req); |
347 | void eio_submit (eio_req *req); |
298 | /* cancel a request as soon fast as possible, if possible */ |
348 | /* cancel a request as soon fast as possible, if possible */ |
299 | void eio_cancel (eio_req *req); |
349 | void eio_cancel (eio_req *req); |
300 | /* destroy a request that has never been submitted */ |
|
|
301 | void eio_destroy (eio_req *req); |
|
|
302 | |
350 | |
303 | /*****************************************************************************/ |
351 | /*****************************************************************************/ |
304 | /* convinience functions */ |
352 | /* convenience functions */ |
305 | |
353 | |
306 | ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count); |
354 | eio_ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count); |
307 | |
355 | |
308 | #ifdef __cplusplus |
356 | #ifdef __cplusplus |
309 | } |
357 | } |
310 | #endif |
358 | #endif |
311 | |
359 | |