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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 |
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61 | # ifdef _WIN32 |
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62 | # define EIO_STRUCT_STAT struct _stati64 |
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63 | # define EIO_STRUCT_STATI64 |
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64 | # else |
61 | # define EIO_STRUCT_STAT struct stat |
65 | # define EIO_STRUCT_STAT struct stat |
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66 | # endif |
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67 | #endif |
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68 | |
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69 | #ifdef _WIN32 |
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70 | typedef int eio_uid_t; |
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71 | typedef int eio_gid_t; |
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72 | #ifdef __MINGW32__ /* no intptr_t */ |
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73 | typedef ssize_t eio_ssize_t; |
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74 | #else |
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75 | typedef intptr_t eio_ssize_t; /* or SSIZE_T */ |
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76 | #endif |
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77 | #if __GNUC__ |
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78 | typedef long long eio_ino_t; /* signed for compatibility to msvc */ |
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79 | #else |
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80 | typedef __int64 eio_ino_t; /* unsigned not supported by msvc */ |
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81 | #endif |
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82 | #else |
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83 | typedef uid_t eio_uid_t; |
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84 | typedef gid_t eio_gid_t; |
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85 | typedef ssize_t eio_ssize_t; |
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86 | typedef ino_t eio_ino_t; |
62 | #endif |
87 | #endif |
63 | |
88 | |
64 | #ifndef EIO_STRUCT_STATVFS |
89 | #ifndef EIO_STRUCT_STATVFS |
65 | # define EIO_STRUCT_STATVFS struct statvfs |
90 | # define EIO_STRUCT_STATVFS struct statvfs |
66 | #endif |
91 | #endif |
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92 | |
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93 | /* managing working directories */ |
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94 | |
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95 | typedef void *eio_wd; |
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96 | |
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97 | #define EIO_CWD 0 /* the current working directory of the process, guaranteed to be a null pointer */ |
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98 | #define EIO_INVALID_WD ((eio_wd)(int)-1) /* failure return for eio_wd_open */ |
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99 | |
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100 | eio_wd eio_wd_open_sync (eio_wd wd, const char *path); |
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101 | void eio_wd_close_sync (eio_wd wd); |
67 | |
102 | |
68 | /* for readdir */ |
103 | /* for readdir */ |
69 | |
104 | |
70 | /* eio_readdir flags */ |
105 | /* eio_readdir flags */ |
71 | enum |
106 | enum |
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105 | { |
140 | { |
106 | 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 */ |
107 | unsigned short namelen; /* size of filename without trailing 0 */ |
142 | unsigned short namelen; /* size of filename without trailing 0 */ |
108 | unsigned char type; /* one of EIO_DT_* */ |
143 | unsigned char type; /* one of EIO_DT_* */ |
109 | signed char score; /* internal use */ |
144 | signed char score; /* internal use */ |
110 | ino_t inode; /* the inode number, if available, otherwise unspecified */ |
145 | eio_ino_t inode; /* the inode number, if available, otherwise unspecified */ |
111 | }; |
146 | }; |
112 | |
147 | |
113 | /* eio_msync flags */ |
148 | /* eio_msync flags */ |
114 | enum |
149 | enum |
115 | { |
150 | { |
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117 | EIO_MS_INVALIDATE = 2, |
152 | EIO_MS_INVALIDATE = 2, |
118 | EIO_MS_SYNC = 4 |
153 | EIO_MS_SYNC = 4 |
119 | }; |
154 | }; |
120 | |
155 | |
121 | /* eio_mtouch flags */ |
156 | /* eio_mtouch flags */ |
122 | |
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123 | enum |
157 | enum |
124 | { |
158 | { |
125 | EIO_MT_MODIFY = 1 |
159 | EIO_MT_MODIFY = 1 |
126 | }; |
160 | }; |
127 | |
161 | |
128 | /* eio_sync_file_range flags */ |
162 | /* eio_sync_file_range flags */ |
129 | |
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130 | enum |
163 | enum |
131 | { |
164 | { |
132 | EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1, |
165 | EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1, |
133 | EIO_SYNC_FILE_RANGE_WRITE = 2, |
166 | EIO_SYNC_FILE_RANGE_WRITE = 2, |
134 | EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4 |
167 | EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4 |
135 | }; |
168 | }; |
136 | |
169 | |
137 | typedef double eio_tstamp; /* feel free to use double in your code directly */ |
170 | /* eio_fallocate flags */ |
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171 | enum |
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172 | { |
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173 | EIO_FALLOC_FL_KEEP_SIZE = 1 /* MUST match the value in linux/falloc.h */ |
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174 | }; |
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175 | |
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176 | /* timestamps and differences - feel free to use double in your code directly */ |
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177 | typedef double eio_tstamp; |
138 | |
178 | |
139 | /* the eio request structure */ |
179 | /* the eio request structure */ |
140 | |
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141 | enum |
180 | enum |
142 | { |
181 | { |
143 | EIO_CUSTOM, |
182 | EIO_CUSTOM, |
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183 | EIO_WD_OPEN, EIO_WD_CLOSE, |
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184 | |
144 | EIO_OPEN, EIO_CLOSE, EIO_DUP2, |
185 | EIO_CLOSE, EIO_DUP2, |
145 | EIO_READ, EIO_WRITE, |
186 | EIO_READ, EIO_WRITE, |
146 | EIO_READAHEAD, EIO_SENDFILE, |
187 | EIO_READAHEAD, EIO_SENDFILE, |
147 | EIO_STAT, EIO_LSTAT, EIO_FSTAT, |
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148 | EIO_STATVFS, EIO_FSTATVFS, |
188 | EIO_FSTAT, EIO_FSTATVFS, |
149 | EIO_TRUNCATE, EIO_FTRUNCATE, |
189 | EIO_FTRUNCATE, EIO_FUTIME, EIO_FCHMOD, EIO_FCHOWN, |
150 | EIO_UTIME, EIO_FUTIME, |
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151 | EIO_CHMOD, EIO_FCHMOD, |
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152 | EIO_CHOWN, EIO_FCHOWN, |
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153 | EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, |
190 | EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, EIO_SYNCFS, |
154 | EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE, |
191 | EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE, EIO_FALLOCATE, |
155 | EIO_MLOCK, EIO_MLOCKALL, |
192 | EIO_MLOCK, EIO_MLOCKALL, |
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193 | EIO_GROUP, EIO_NOP, |
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194 | EIO_BUSY, |
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195 | |
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196 | /* these use wd + ptr1, but are emulated */ |
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197 | EIO_REALPATH, |
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198 | EIO_STATVFS, |
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199 | EIO_READDIR, |
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200 | |
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201 | /* all the following requests use wd + ptr1 as path in xxxat functions */ |
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202 | EIO_OPEN, |
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203 | EIO_STAT, EIO_LSTAT, |
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204 | EIO_TRUNCATE, |
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205 | EIO_UTIME, |
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206 | EIO_CHMOD, |
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207 | EIO_CHOWN, |
156 | EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME, |
208 | EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME, |
157 | EIO_MKNOD, EIO_READDIR, |
209 | EIO_MKNOD, |
158 | EIO_LINK, EIO_SYMLINK, EIO_READLINK, EIO_REALPATH, |
210 | EIO_LINK, EIO_SYMLINK, EIO_READLINK, |
159 | EIO_GROUP, EIO_NOP, |
211 | |
160 | EIO_BUSY |
212 | EIO_REQ_TYPE_NUM |
161 | }; |
213 | }; |
162 | |
214 | |
163 | /* mlockall constants */ |
215 | /* mlockall constants */ |
164 | enum |
216 | enum |
165 | { |
217 | { |
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180 | /* when initialising it, all members must be zero-initialised */ |
232 | /* when initialising it, all members must be zero-initialised */ |
181 | struct eio_req |
233 | struct eio_req |
182 | { |
234 | { |
183 | eio_req volatile *next; /* private ETP */ |
235 | eio_req volatile *next; /* private ETP */ |
184 | |
236 | |
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237 | eio_wd wd; /* all applicable requests: working directory of pathname, old name; wd_open: return wd */ |
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238 | |
185 | ssize_t result; /* result of syscall, e.g. result = read (... */ |
239 | 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 */ |
240 | 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 */ |
241 | 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 */ |
242 | 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 */ |
243 | void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */ |
190 | eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */ |
244 | eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */ |
191 | eio_tstamp nv2; /* utime, futime: mtime */ |
245 | eio_tstamp nv2; /* utime, futime: mtime */ |
192 | |
246 | |
193 | int type; /* EIO_xxx constant ETP */ |
247 | int type; /* EIO_xxx constant ETP */ |
194 | int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, mlockall, readdir: flags */ |
248 | 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 */ |
249 | 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 */ |
250 | long int3; /* chown, fchown: gid; rename: working directory of new name */ |
197 | int errorno; /* errno value on syscall return */ |
251 | int errorno; /* errno value on syscall return */ |
198 | |
252 | |
199 | #if __i386 || __amd64 |
253 | #if __i386 || __amd64 |
200 | unsigned char cancelled; |
254 | unsigned char cancelled; |
201 | #else |
255 | #else |
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249 | void eio_set_max_idle (unsigned int nthreads); |
303 | void eio_set_max_idle (unsigned int nthreads); |
250 | void eio_set_idle_timeout (unsigned int seconds); |
304 | void eio_set_idle_timeout (unsigned int seconds); |
251 | |
305 | |
252 | unsigned int eio_nreqs (void); /* number of requests in-flight */ |
306 | unsigned int eio_nreqs (void); /* number of requests in-flight */ |
253 | unsigned int eio_nready (void); /* number of not-yet handled requests */ |
307 | unsigned int eio_nready (void); /* number of not-yet handled requests */ |
254 | unsigned int eio_npending (void); /* numbe rof finished but unhandled requests */ |
308 | unsigned int eio_npending (void); /* number of finished but unhandled requests */ |
255 | unsigned int eio_nthreads (void); /* number of worker threads in use currently */ |
309 | unsigned int eio_nthreads (void); /* number of worker threads in use currently */ |
256 | |
310 | |
257 | /*****************************************************************************/ |
311 | /*****************************************************************************/ |
258 | /* convenience wrappers */ |
312 | /* convenience wrappers */ |
259 | |
313 | |
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261 | eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */ |
315 | eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */ |
262 | eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */ |
316 | eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */ |
263 | eio_req *eio_sync (int pri, eio_cb cb, void *data); |
317 | eio_req *eio_sync (int pri, eio_cb cb, void *data); |
264 | eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data); |
318 | eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data); |
265 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data); |
319 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data); |
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320 | eio_req *eio_syncfs (int fd, int pri, eio_cb cb, void *data); |
266 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
321 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
267 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
322 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
268 | eio_req *eio_mlock (void *addr, size_t length, int pri, eio_cb cb, void *data); |
323 | eio_req *eio_mlock (void *addr, size_t length, int pri, eio_cb cb, void *data); |
269 | eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data); |
324 | eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data); |
270 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data); |
325 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data); |
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326 | eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data); |
271 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data); |
327 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data); |
272 | eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data); |
328 | eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data); |
273 | eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
329 | eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
274 | eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
330 | eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
275 | eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
331 | eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
276 | eio_req *eio_fstatvfs (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
332 | eio_req *eio_fstatvfs (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
277 | eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); |
333 | eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); |
278 | eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data); |
334 | eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data); |
279 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data); |
335 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data); |
280 | eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data); |
336 | eio_req *eio_fchown (int fd, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data); |
281 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data); |
337 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data); |
282 | eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data); |
338 | eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data); |
283 | eio_req *eio_open (const char *path, int flags, mode_t mode, int pri, eio_cb cb, void *data); |
339 | eio_req *eio_open (const char *path, int flags, mode_t mode, int pri, eio_cb cb, void *data); |
284 | eio_req *eio_utime (const char *path, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); |
340 | eio_req *eio_utime (const char *path, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); |
285 | eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data); |
341 | eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data); |
286 | eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data); |
342 | eio_req *eio_chown (const char *path, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data); |
287 | eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data); |
343 | eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data); |
288 | eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data); |
344 | eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data); |
289 | eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
345 | eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
290 | eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data); |
346 | eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data); |
291 | eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data); |
347 | eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data); |
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329 | void eio_cancel (eio_req *req); |
385 | void eio_cancel (eio_req *req); |
330 | |
386 | |
331 | /*****************************************************************************/ |
387 | /*****************************************************************************/ |
332 | /* convenience functions */ |
388 | /* convenience functions */ |
333 | |
389 | |
334 | ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count); |
390 | eio_ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count); |
335 | |
391 | |
336 | #ifdef __cplusplus |
392 | #ifdef __cplusplus |
337 | } |
393 | } |
338 | #endif |
394 | #endif |
339 | |
395 | |