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 | * |
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… | |
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> |
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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 | |
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58 | |
59 | |
59 | #ifndef EIO_STRUCT_STAT |
60 | #ifndef EIO_STRUCT_STAT |
60 | # define EIO_STRUCT_STAT struct stat |
61 | # define EIO_STRUCT_STAT struct stat |
61 | #endif |
62 | #endif |
62 | |
63 | |
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64 | #ifndef EIO_STRUCT_STATVFS |
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65 | # define EIO_STRUCT_STATVFS struct statvfs |
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66 | #endif |
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67 | |
63 | /* for readdir */ |
68 | /* for readdir */ |
64 | |
69 | |
65 | /* eio_readdir flags */ |
70 | /* eio_readdir flags */ |
66 | enum { |
71 | enum |
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72 | { |
67 | EIO_READDIR_DENTS = 0x01, /* ptr2 contains eio_dirents, not just the (unsorted) names */ |
73 | 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 */ |
74 | 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 */ |
75 | 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 */ |
76 | EIO_READDIR_FOUND_UNKNOWN = 0x80, /* set by eio_readdir when *_ARRAY was set and any TYPE=UNKNOWN's were found */ |
71 | |
77 | |
72 | EIO_READDIR_CUSTOM1 = 0x100, /* for use by apps */ |
78 | EIO_READDIR_CUSTOM1 = 0x100, /* for use by apps */ |
73 | EIO_READDIR_CUSTOM2 = 0x200 /* for use by apps */ |
79 | EIO_READDIR_CUSTOM2 = 0x200 /* for use by apps */ |
74 | }; |
80 | }; |
75 | |
81 | |
76 | /* using "typical" values in the hope that the compiler will do something sensible */ |
82 | /* using "typical" values in the hope that the compiler will do something sensible */ |
77 | enum eio_dtype { |
83 | enum eio_dtype |
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84 | { |
78 | EIO_DT_UNKNOWN = 0, |
85 | EIO_DT_UNKNOWN = 0, |
79 | EIO_DT_FIFO = 1, |
86 | EIO_DT_FIFO = 1, |
80 | EIO_DT_CHR = 2, |
87 | EIO_DT_CHR = 2, |
81 | EIO_DT_MPC = 3, /* multiplexed char device (v7+coherent) */ |
88 | EIO_DT_MPC = 3, /* multiplexed char device (v7+coherent) */ |
82 | EIO_DT_DIR = 4, |
89 | EIO_DT_DIR = 4, |
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92 | EIO_DT_DOOR = 13, /* solaris door */ |
99 | EIO_DT_DOOR = 13, /* solaris door */ |
93 | EIO_DT_WHT = 14, |
100 | EIO_DT_WHT = 14, |
94 | EIO_DT_MAX = 15 /* highest DT_VALUE ever, hopefully */ |
101 | EIO_DT_MAX = 15 /* highest DT_VALUE ever, hopefully */ |
95 | }; |
102 | }; |
96 | |
103 | |
97 | struct eio_dirent { |
104 | struct eio_dirent |
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105 | { |
98 | int nameofs; /* offset of null-terminated name string in (char *)req->ptr2 */ |
106 | int nameofs; /* offset of null-terminated name string in (char *)req->ptr2 */ |
99 | unsigned short namelen; /* size of filename without trailing 0 */ |
107 | unsigned short namelen; /* size of filename without trailing 0 */ |
100 | unsigned char type; /* one of EIO_DT_* */ |
108 | unsigned char type; /* one of EIO_DT_* */ |
101 | signed char score; /* internal use */ |
109 | signed char score; /* internal use */ |
102 | ino_t inode; /* the inode number, if available, otherwise unspecified */ |
110 | ino_t inode; /* the inode number, if available, otherwise unspecified */ |
103 | }; |
111 | }; |
104 | |
112 | |
105 | /* eio_msync flags */ |
113 | /* eio_msync flags */ |
106 | enum { |
114 | enum |
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115 | { |
107 | EIO_MS_ASYNC = 1, |
116 | EIO_MS_ASYNC = 1, |
108 | EIO_MS_INVALIDATE = 2, |
117 | EIO_MS_INVALIDATE = 2, |
109 | EIO_MS_SYNC = 4 |
118 | EIO_MS_SYNC = 4 |
110 | }; |
119 | }; |
111 | |
120 | |
112 | /* eio_mtouch flags */ |
121 | /* eio_mtouch flags */ |
113 | |
122 | |
114 | enum { |
123 | enum |
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124 | { |
115 | EIO_MT_MODIFY = 1 |
125 | EIO_MT_MODIFY = 1 |
116 | }; |
126 | }; |
117 | |
127 | |
118 | /* eio_sync_file_range flags */ |
128 | /* eio_sync_file_range flags */ |
119 | |
129 | |
120 | enum { |
130 | enum |
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131 | { |
121 | EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1, |
132 | EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1, |
122 | EIO_SYNC_FILE_RANGE_WRITE = 2, |
133 | EIO_SYNC_FILE_RANGE_WRITE = 2, |
123 | EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4 |
134 | EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4 |
124 | }; |
135 | }; |
125 | |
136 | |
126 | typedef double eio_tstamp; /* feel free to use double in your code directly */ |
137 | typedef double eio_tstamp; /* feel free to use double in your code directly */ |
127 | |
138 | |
128 | /* the eio request structure */ |
139 | /* the eio request structure */ |
129 | |
140 | |
130 | enum { |
141 | enum |
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142 | { |
131 | EIO_CUSTOM, |
143 | EIO_CUSTOM, |
132 | EIO_OPEN, EIO_CLOSE, EIO_DUP2, |
144 | EIO_OPEN, EIO_CLOSE, EIO_DUP2, |
133 | EIO_READ, EIO_WRITE, |
145 | EIO_READ, EIO_WRITE, |
134 | EIO_READAHEAD, EIO_SENDFILE, |
146 | EIO_READAHEAD, EIO_SENDFILE, |
135 | EIO_STAT, EIO_LSTAT, EIO_FSTAT, |
147 | EIO_STAT, EIO_LSTAT, EIO_FSTAT, |
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148 | EIO_STATVFS, EIO_FSTATVFS, |
136 | EIO_TRUNCATE, EIO_FTRUNCATE, |
149 | EIO_TRUNCATE, EIO_FTRUNCATE, |
137 | EIO_UTIME, EIO_FUTIME, |
150 | EIO_UTIME, EIO_FUTIME, |
138 | EIO_CHMOD, EIO_FCHMOD, |
151 | EIO_CHMOD, EIO_FCHMOD, |
139 | EIO_CHOWN, EIO_FCHOWN, |
152 | EIO_CHOWN, EIO_FCHOWN, |
140 | EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, |
153 | EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, |
141 | EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE, |
154 | EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE, |
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155 | EIO_MLOCK, EIO_MLOCKALL, |
142 | EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME, |
156 | EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME, |
143 | EIO_MKNOD, EIO_READDIR, |
157 | EIO_MKNOD, EIO_READDIR, |
144 | EIO_LINK, EIO_SYMLINK, EIO_READLINK, |
158 | EIO_LINK, EIO_SYMLINK, EIO_READLINK, EIO_REALPATH, |
145 | EIO_GROUP, EIO_NOP, |
159 | EIO_GROUP, EIO_NOP, |
146 | EIO_BUSY |
160 | EIO_BUSY |
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161 | }; |
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162 | |
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163 | /* mlockall constants */ |
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164 | enum |
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165 | { |
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166 | EIO_MCL_CURRENT = 1, |
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167 | EIO_MCL_FUTURE = 2, |
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168 | }; |
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169 | |
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170 | /* request priorities */ |
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171 | |
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172 | enum { |
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173 | EIO_PRI_MIN = -4, |
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174 | EIO_PRI_MAX = 4, |
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175 | EIO_PRI_DEFAULT = 0, |
147 | }; |
176 | }; |
148 | |
177 | |
149 | /* eio request structure */ |
178 | /* eio request structure */ |
150 | /* this structure is mostly read-only */ |
179 | /* this structure is mostly read-only */ |
151 | /* when initialising it, all members must be zero-initialised */ |
180 | /* when initialising it, all members must be zero-initialised */ |
152 | struct eio_req |
181 | struct eio_req |
153 | { |
182 | { |
154 | eio_req volatile *next; /* private ETP */ |
183 | eio_req volatile *next; /* private ETP */ |
155 | |
184 | |
156 | ssize_t result; /* result of syscall, e.g. result = read (... */ |
185 | ssize_t result; /* result of syscall, e.g. result = read (... */ |
157 | off_t offs; /* read, write, truncate, readahead, sync_file_range: file offset */ |
186 | off_t offs; /* read, write, truncate, readahead, sync_file_range: file offset, mknod: dev_t */ |
158 | size_t size; /* read, write, readahead, sendfile, msync, sync_file_range: length */ |
187 | size_t size; /* read, write, readahead, sendfile, msync, mlock, sync_file_range: length */ |
159 | void *ptr1; /* all applicable requests: pathname, old name; readdir: optional eio_dirents */ |
188 | void *ptr1; /* all applicable requests: pathname, old name; readdir: optional eio_dirents */ |
160 | void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */ |
189 | void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */ |
161 | eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */ |
190 | eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */ |
162 | eio_tstamp nv2; /* utime, futime: mtime */ |
191 | eio_tstamp nv2; /* utime, futime: mtime */ |
163 | |
192 | |
164 | int type; /* EIO_xxx constant ETP */ |
193 | int type; /* EIO_xxx constant ETP */ |
165 | int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, readdir: flags */ |
194 | int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, mlockall, readdir: flags */ |
166 | long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, sync_file_range: flags */ |
195 | long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, sync_file_range: flags */ |
167 | long int3; /* chown, fchown: gid; mknod: dev_t */ |
196 | long int3; /* chown, fchown: gid */ |
168 | int errorno; /* errno value on syscall return */ |
197 | int errorno; /* errno value on syscall return */ |
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198 | |
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199 | #if __i386 || __amd64 |
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200 | unsigned char cancelled; |
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201 | #else |
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202 | sig_atomic_t cancelled; |
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203 | #endif |
169 | |
204 | |
170 | unsigned char flags; /* private */ |
205 | unsigned char flags; /* private */ |
171 | signed char pri; /* the priority */ |
206 | signed char pri; /* the priority */ |
172 | |
207 | |
173 | void *data; |
208 | void *data; |
174 | eio_cb finish; |
209 | eio_cb finish; |
175 | void (*destroy)(eio_req *req); /* called when requets no longer needed */ |
210 | void (*destroy)(eio_req *req); /* called when request no longer needed */ |
176 | void (*feed)(eio_req *req); /* only used for group requests */ |
211 | void (*feed)(eio_req *req); /* only used for group requests */ |
177 | |
212 | |
178 | EIO_REQ_MEMBERS |
213 | EIO_REQ_MEMBERS |
179 | |
214 | |
180 | eio_req *grp, *grp_prev, *grp_next, *grp_first; /* private */ |
215 | eio_req *grp, *grp_prev, *grp_next, *grp_first; /* private */ |
181 | }; |
216 | }; |
182 | |
217 | |
183 | /* _private_ flags */ |
218 | /* _private_ request flags */ |
184 | enum { |
219 | enum { |
185 | EIO_FLAG_CANCELLED = 0x01, /* request was cancelled */ |
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186 | EIO_FLAG_PTR1_FREE = 0x02, /* need to free(ptr1) */ |
220 | EIO_FLAG_PTR1_FREE = 0x01, /* need to free(ptr1) */ |
187 | EIO_FLAG_PTR2_FREE = 0x04, /* need to free(ptr2) */ |
221 | EIO_FLAG_PTR2_FREE = 0x02, /* need to free(ptr2) */ |
188 | EIO_FLAG_GROUPADD = 0x08 /* some request was added to the group */ |
222 | EIO_FLAG_GROUPADD = 0x04 /* some request was added to the group */ |
189 | }; |
223 | }; |
190 | |
224 | |
191 | enum { |
225 | /* undocumented/unsupported/private helper */ |
192 | EIO_PRI_MIN = -4, |
226 | /*void eio_page_align (void **addr, size_t *length);*/ |
193 | EIO_PRI_MAX = 4, |
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194 | EIO_PRI_DEFAULT = 0, |
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195 | }; |
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196 | |
227 | |
197 | /* returns < 0 on error, errno set |
228 | /* returns < 0 on error, errno set |
198 | * need_poll, if non-zero, will be called when results are available |
229 | * need_poll, if non-zero, will be called when results are available |
199 | * and eio_poll_cb needs to be invoked (it MUST NOT call eio_poll_cb itself). |
230 | * and eio_poll_cb needs to be invoked (it MUST NOT call eio_poll_cb itself). |
200 | * done_poll is called when the need to poll is gone. |
231 | * done_poll is called when the need to poll is gone. |
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214 | * maximum wanted number |
245 | * maximum wanted number |
215 | * or maximum idle number of threads */ |
246 | * or maximum idle number of threads */ |
216 | void eio_set_min_parallel (unsigned int nthreads); |
247 | void eio_set_min_parallel (unsigned int nthreads); |
217 | void eio_set_max_parallel (unsigned int nthreads); |
248 | void eio_set_max_parallel (unsigned int nthreads); |
218 | void eio_set_max_idle (unsigned int nthreads); |
249 | void eio_set_max_idle (unsigned int nthreads); |
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250 | void eio_set_idle_timeout (unsigned int seconds); |
219 | |
251 | |
220 | unsigned int eio_nreqs (void); /* number of requests in-flight */ |
252 | unsigned int eio_nreqs (void); /* number of requests in-flight */ |
221 | unsigned int eio_nready (void); /* number of not-yet handled requests */ |
253 | unsigned int eio_nready (void); /* number of not-yet handled requests */ |
222 | unsigned int eio_npending (void); /* numbe rof finished but unhandled requests */ |
254 | unsigned int eio_npending (void); /* number of finished but unhandled requests */ |
223 | unsigned int eio_nthreads (void); /* number of worker threads in use currently */ |
255 | unsigned int eio_nthreads (void); /* number of worker threads in use currently */ |
224 | |
256 | |
225 | /*****************************************************************************/ |
257 | /*****************************************************************************/ |
226 | /* convinience wrappers */ |
258 | /* convenience wrappers */ |
227 | |
259 | |
228 | #ifndef EIO_NO_WRAPPERS |
260 | #ifndef EIO_NO_WRAPPERS |
229 | eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */ |
261 | eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */ |
230 | eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */ |
262 | eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */ |
231 | eio_req *eio_sync (int pri, eio_cb cb, void *data); |
263 | eio_req *eio_sync (int pri, eio_cb cb, void *data); |
232 | eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data); |
264 | eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data); |
233 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data); |
265 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data); |
234 | eio_req *eio_msync (void *addr, size_t length, int flags, 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); |
235 | eio_req *eio_mtouch (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); |
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268 | eio_req *eio_mlock (void *addr, size_t length, int pri, eio_cb cb, void *data); |
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269 | eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data); |
236 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned 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); |
237 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data); |
271 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data); |
238 | eio_req *eio_readahead (int fd, off_t offset, size_t length, 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); |
239 | eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, 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); |
240 | eio_req *eio_write (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); |
241 | eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
275 | eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
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276 | eio_req *eio_fstatvfs (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
242 | eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); |
277 | eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); |
243 | eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data); |
278 | eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data); |
244 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data); |
279 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data); |
245 | eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, 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); |
246 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data); |
281 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data); |
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253 | eio_req *eio_mkdir (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); |
254 | eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
289 | eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
255 | eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data); |
290 | eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data); |
256 | eio_req *eio_unlink (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); |
257 | eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
292 | eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
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293 | eio_req *eio_realpath (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
258 | eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
294 | eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
259 | eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
295 | eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
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296 | eio_req *eio_statvfs (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
260 | eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data); |
297 | eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data); |
261 | eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
298 | eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
262 | eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
299 | eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
263 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
300 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
264 | eio_req *eio_custom (eio_cb execute, int pri, eio_cb cb, void *data); |
301 | eio_req *eio_custom (void (*execute)(eio_req *), int pri, eio_cb cb, void *data); |
265 | #endif |
302 | #endif |
266 | |
303 | |
267 | /*****************************************************************************/ |
304 | /*****************************************************************************/ |
268 | /* groups */ |
305 | /* groups */ |
269 | |
306 | |
… | |
… | |
275 | |
312 | |
276 | /*****************************************************************************/ |
313 | /*****************************************************************************/ |
277 | /* request api */ |
314 | /* request api */ |
278 | |
315 | |
279 | /* true if the request was cancelled, useful in the invoke callback */ |
316 | /* true if the request was cancelled, useful in the invoke callback */ |
280 | #define EIO_CANCELLED(req) ((req)->flags & EIO_FLAG_CANCELLED) |
317 | #define EIO_CANCELLED(req) ((req)->cancelled) |
281 | |
318 | |
282 | #define EIO_RESULT(req) ((req)->result) |
319 | #define EIO_RESULT(req) ((req)->result) |
283 | /* returns a pointer to the result buffer allocated by eio */ |
320 | /* returns a pointer to the result buffer allocated by eio */ |
284 | #define EIO_BUF(req) ((req)->ptr2) |
321 | #define EIO_BUF(req) ((req)->ptr2) |
285 | #define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req)) |
322 | #define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req)) |
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323 | #define EIO_STATVFS_BUF(req) ((EIO_STRUCT_STATVFS *)EIO_BUF(req)) |
286 | #define EIO_PATH(req) ((char *)(req)->ptr1) |
324 | #define EIO_PATH(req) ((char *)(req)->ptr1) |
287 | |
325 | |
288 | /* submit a request for execution */ |
326 | /* submit a request for execution */ |
289 | void eio_submit (eio_req *req); |
327 | void eio_submit (eio_req *req); |
290 | /* cancel a request as soon fast as possible, if possible */ |
328 | /* cancel a request as soon fast as possible, if possible */ |
291 | void eio_cancel (eio_req *req); |
329 | void eio_cancel (eio_req *req); |
292 | /* destroy a request that has never been submitted */ |
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293 | void eio_destroy (eio_req *req); |
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294 | |
330 | |
295 | /*****************************************************************************/ |
331 | /*****************************************************************************/ |
296 | /* convinience functions */ |
332 | /* convenience functions */ |
297 | |
333 | |
298 | ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count); |
334 | ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count); |
299 | |
335 | |
300 | #ifdef __cplusplus |
336 | #ifdef __cplusplus |
301 | } |
337 | } |