1 | /* |
1 | /* |
2 | * libeio API header |
2 | * libeio API header |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009 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 | |
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113 | /* eio_msync flags */ |
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114 | enum |
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115 | { |
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116 | EIO_MS_ASYNC = 1, |
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117 | EIO_MS_INVALIDATE = 2, |
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118 | EIO_MS_SYNC = 4 |
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119 | }; |
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120 | |
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121 | /* eio_mtouch flags */ |
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122 | enum |
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123 | { |
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124 | EIO_MT_MODIFY = 1 |
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125 | }; |
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126 | |
105 | /* eio_sync_file_range flags */ |
127 | /* eio_sync_file_range flags */ |
106 | |
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107 | enum { |
128 | enum |
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129 | { |
108 | EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1, |
130 | EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1, |
109 | EIO_SYNC_FILE_RANGE_WRITE = 2, |
131 | EIO_SYNC_FILE_RANGE_WRITE = 2, |
110 | EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4 |
132 | EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4 |
111 | }; |
133 | }; |
112 | |
134 | |
113 | typedef double eio_tstamp; /* feel free to use double in your code directly */ |
135 | /* eio_fallocate flags */ |
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136 | enum |
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137 | { |
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138 | EIO_FALLOC_FL_KEEP_SIZE = 1 /* MUST match the value in linux/falloc.h */ |
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139 | }; |
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140 | |
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141 | /* timestamps and differences - feel free to use double in your code directly */ |
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142 | typedef double eio_tstamp; |
114 | |
143 | |
115 | /* the eio request structure */ |
144 | /* the eio request structure */ |
116 | |
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117 | enum { |
145 | enum |
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146 | { |
118 | EIO_CUSTOM, |
147 | EIO_CUSTOM, |
119 | EIO_OPEN, EIO_CLOSE, EIO_DUP2, |
148 | EIO_OPEN, EIO_CLOSE, EIO_DUP2, |
120 | EIO_READ, EIO_WRITE, |
149 | EIO_READ, EIO_WRITE, |
121 | EIO_READAHEAD, EIO_SENDFILE, |
150 | EIO_READAHEAD, EIO_SENDFILE, |
122 | EIO_STAT, EIO_LSTAT, EIO_FSTAT, |
151 | EIO_STAT, EIO_LSTAT, EIO_FSTAT, |
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152 | EIO_STATVFS, EIO_FSTATVFS, |
123 | EIO_TRUNCATE, EIO_FTRUNCATE, |
153 | EIO_TRUNCATE, EIO_FTRUNCATE, |
124 | EIO_UTIME, EIO_FUTIME, |
154 | EIO_UTIME, EIO_FUTIME, |
125 | EIO_CHMOD, EIO_FCHMOD, |
155 | EIO_CHMOD, EIO_FCHMOD, |
126 | EIO_CHOWN, EIO_FCHOWN, |
156 | EIO_CHOWN, EIO_FCHOWN, |
127 | EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, |
157 | EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, |
128 | EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE, |
158 | EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE, EIO_FALLOCATE, |
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159 | EIO_MLOCK, EIO_MLOCKALL, |
129 | EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME, |
160 | EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME, |
130 | EIO_MKNOD, EIO_READDIR, |
161 | EIO_MKNOD, EIO_READDIR, |
131 | EIO_LINK, EIO_SYMLINK, EIO_READLINK, |
162 | EIO_LINK, EIO_SYMLINK, EIO_READLINK, EIO_REALPATH, |
132 | EIO_GROUP, EIO_NOP, |
163 | EIO_GROUP, EIO_NOP, |
133 | EIO_BUSY |
164 | EIO_BUSY |
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165 | }; |
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166 | |
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167 | /* mlockall constants */ |
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168 | enum |
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169 | { |
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170 | EIO_MCL_CURRENT = 1, |
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171 | EIO_MCL_FUTURE = 2, |
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172 | }; |
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173 | |
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174 | /* request priorities */ |
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175 | |
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176 | enum { |
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177 | EIO_PRI_MIN = -4, |
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178 | EIO_PRI_MAX = 4, |
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179 | EIO_PRI_DEFAULT = 0, |
134 | }; |
180 | }; |
135 | |
181 | |
136 | /* eio request structure */ |
182 | /* eio request structure */ |
137 | /* this structure is mostly read-only */ |
183 | /* this structure is mostly read-only */ |
138 | /* when initialising it, all members must be zero-initialised */ |
184 | /* when initialising it, all members must be zero-initialised */ |
139 | struct eio_req |
185 | struct eio_req |
140 | { |
186 | { |
141 | eio_req volatile *next; /* private ETP */ |
187 | eio_req volatile *next; /* private ETP */ |
142 | |
188 | |
143 | ssize_t result; /* result of syscall, e.g. result = read (... */ |
189 | ssize_t result; /* result of syscall, e.g. result = read (... */ |
144 | off_t offs; /* read, write, truncate, readahead, sync_file_range: file offset */ |
190 | off_t offs; /* read, write, truncate, readahead, sync_file_range, fallocate: file offset, mknod: dev_t */ |
145 | size_t size; /* read, write, readahead, sendfile, msync, sync_file_range: length */ |
191 | size_t size; /* read, write, readahead, sendfile, msync, mlock, sync_file_range, fallocate: length */ |
146 | void *ptr1; /* all applicable requests: pathname, old name; readdir: optional eio_dirents */ |
192 | void *ptr1; /* all applicable requests: pathname, old name; readdir: optional eio_dirents */ |
147 | void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */ |
193 | void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */ |
148 | eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */ |
194 | eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */ |
149 | eio_tstamp nv2; /* utime, futime: mtime */ |
195 | eio_tstamp nv2; /* utime, futime: mtime */ |
150 | |
196 | |
151 | int type; /* EIO_xxx constant ETP */ |
197 | int type; /* EIO_xxx constant ETP */ |
152 | int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, readdir: flags */ |
198 | int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, mlockall, readdir: flags */ |
153 | long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, sync_file_range: flags */ |
199 | long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, sync_file_range, fallocate: flags */ |
154 | long int3; /* chown, fchown: gid; mknod: dev_t */ |
200 | long int3; /* chown, fchown: gid */ |
155 | int errorno; /* errno value on syscall return */ |
201 | int errorno; /* errno value on syscall return */ |
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202 | |
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203 | #if __i386 || __amd64 |
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204 | unsigned char cancelled; |
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205 | #else |
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206 | sig_atomic_t cancelled; |
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207 | #endif |
156 | |
208 | |
157 | unsigned char flags; /* private */ |
209 | unsigned char flags; /* private */ |
158 | signed char pri; /* the priority */ |
210 | signed char pri; /* the priority */ |
159 | |
211 | |
160 | void *data; |
212 | void *data; |
161 | eio_cb finish; |
213 | eio_cb finish; |
162 | void (*destroy)(eio_req *req); /* called when requets no longer needed */ |
214 | void (*destroy)(eio_req *req); /* called when request no longer needed */ |
163 | void (*feed)(eio_req *req); /* only used for group requests */ |
215 | void (*feed)(eio_req *req); /* only used for group requests */ |
164 | |
216 | |
165 | EIO_REQ_MEMBERS |
217 | EIO_REQ_MEMBERS |
166 | |
218 | |
167 | eio_req *grp, *grp_prev, *grp_next, *grp_first; /* private */ |
219 | eio_req *grp, *grp_prev, *grp_next, *grp_first; /* private */ |
168 | }; |
220 | }; |
169 | |
221 | |
170 | /* _private_ flags */ |
222 | /* _private_ request flags */ |
171 | enum { |
223 | enum { |
172 | EIO_FLAG_CANCELLED = 0x01, /* request was cancelled */ |
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173 | EIO_FLAG_PTR1_FREE = 0x02, /* need to free(ptr1) */ |
224 | EIO_FLAG_PTR1_FREE = 0x01, /* need to free(ptr1) */ |
174 | EIO_FLAG_PTR2_FREE = 0x04, /* need to free(ptr2) */ |
225 | EIO_FLAG_PTR2_FREE = 0x02, /* need to free(ptr2) */ |
175 | EIO_FLAG_GROUPADD = 0x08 /* some request was added to the group */ |
226 | EIO_FLAG_GROUPADD = 0x04 /* some request was added to the group */ |
176 | }; |
227 | }; |
177 | |
228 | |
178 | enum { |
229 | /* undocumented/unsupported/private helper */ |
179 | EIO_PRI_MIN = -4, |
230 | /*void eio_page_align (void **addr, size_t *length);*/ |
180 | EIO_PRI_MAX = 4, |
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181 | EIO_PRI_DEFAULT = 0, |
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182 | }; |
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183 | |
231 | |
184 | /* returns < 0 on error, errno set |
232 | /* returns < 0 on error, errno set |
185 | * need_poll, if non-zero, will be called when results are available |
233 | * need_poll, if non-zero, will be called when results are available |
186 | * and eio_poll_cb needs to be invoked (it MUST NOT call eio_poll_cb itself). |
234 | * and eio_poll_cb needs to be invoked (it MUST NOT call eio_poll_cb itself). |
187 | * done_poll is called when the need to poll is gone. |
235 | * done_poll is called when the need to poll is gone. |
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201 | * maximum wanted number |
249 | * maximum wanted number |
202 | * or maximum idle number of threads */ |
250 | * or maximum idle number of threads */ |
203 | void eio_set_min_parallel (unsigned int nthreads); |
251 | void eio_set_min_parallel (unsigned int nthreads); |
204 | void eio_set_max_parallel (unsigned int nthreads); |
252 | void eio_set_max_parallel (unsigned int nthreads); |
205 | void eio_set_max_idle (unsigned int nthreads); |
253 | void eio_set_max_idle (unsigned int nthreads); |
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254 | void eio_set_idle_timeout (unsigned int seconds); |
206 | |
255 | |
207 | unsigned int eio_nreqs (void); /* number of requests in-flight */ |
256 | unsigned int eio_nreqs (void); /* number of requests in-flight */ |
208 | unsigned int eio_nready (void); /* number of not-yet handled requests */ |
257 | unsigned int eio_nready (void); /* number of not-yet handled requests */ |
209 | unsigned int eio_npending (void); /* numbe rof finished but unhandled requests */ |
258 | unsigned int eio_npending (void); /* number of finished but unhandled requests */ |
210 | unsigned int eio_nthreads (void); /* number of worker threads in use currently */ |
259 | unsigned int eio_nthreads (void); /* number of worker threads in use currently */ |
211 | |
260 | |
212 | /*****************************************************************************/ |
261 | /*****************************************************************************/ |
213 | /* convinience wrappers */ |
262 | /* convenience wrappers */ |
214 | |
263 | |
215 | #ifndef EIO_NO_WRAPPERS |
264 | #ifndef EIO_NO_WRAPPERS |
216 | eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */ |
265 | eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */ |
217 | eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */ |
266 | eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */ |
218 | eio_req *eio_sync (int pri, eio_cb cb, void *data); |
267 | eio_req *eio_sync (int pri, eio_cb cb, void *data); |
219 | eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data); |
268 | eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data); |
220 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data); |
269 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data); |
221 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
270 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
222 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
271 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
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272 | eio_req *eio_mlock (void *addr, size_t length, int pri, eio_cb cb, void *data); |
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273 | eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data); |
223 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data); |
274 | 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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275 | eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data); |
224 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data); |
276 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data); |
225 | eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data); |
277 | eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data); |
226 | eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
278 | eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
227 | eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
279 | eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
228 | eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
280 | eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
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281 | eio_req *eio_fstatvfs (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
229 | eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); |
282 | eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); |
230 | eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data); |
283 | eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data); |
231 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data); |
284 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data); |
232 | eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data); |
285 | eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data); |
233 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data); |
286 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data); |
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240 | eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data); |
293 | eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data); |
241 | eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
294 | eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
242 | eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data); |
295 | eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data); |
243 | eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data); |
296 | eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data); |
244 | eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
297 | eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
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298 | eio_req *eio_realpath (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
245 | eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
299 | eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
246 | eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
300 | eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
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301 | eio_req *eio_statvfs (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
247 | eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data); |
302 | eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data); |
248 | eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
303 | eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
249 | eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
304 | eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
250 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
305 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
251 | eio_req *eio_custom (eio_cb execute, int pri, eio_cb cb, void *data); |
306 | eio_req *eio_custom (void (*execute)(eio_req *), int pri, eio_cb cb, void *data); |
252 | #endif |
307 | #endif |
253 | |
308 | |
254 | /*****************************************************************************/ |
309 | /*****************************************************************************/ |
255 | /* groups */ |
310 | /* groups */ |
256 | |
311 | |
… | |
… | |
262 | |
317 | |
263 | /*****************************************************************************/ |
318 | /*****************************************************************************/ |
264 | /* request api */ |
319 | /* request api */ |
265 | |
320 | |
266 | /* true if the request was cancelled, useful in the invoke callback */ |
321 | /* true if the request was cancelled, useful in the invoke callback */ |
267 | #define EIO_CANCELLED(req) ((req)->flags & EIO_FLAG_CANCELLED) |
322 | #define EIO_CANCELLED(req) ((req)->cancelled) |
268 | |
323 | |
269 | #define EIO_RESULT(req) ((req)->result) |
324 | #define EIO_RESULT(req) ((req)->result) |
270 | /* returns a pointer to the result buffer allocated by eio */ |
325 | /* returns a pointer to the result buffer allocated by eio */ |
271 | #define EIO_BUF(req) ((req)->ptr2) |
326 | #define EIO_BUF(req) ((req)->ptr2) |
272 | #define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req)) |
327 | #define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req)) |
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328 | #define EIO_STATVFS_BUF(req) ((EIO_STRUCT_STATVFS *)EIO_BUF(req)) |
273 | #define EIO_PATH(req) ((char *)(req)->ptr1) |
329 | #define EIO_PATH(req) ((char *)(req)->ptr1) |
274 | |
330 | |
275 | /* submit a request for execution */ |
331 | /* submit a request for execution */ |
276 | void eio_submit (eio_req *req); |
332 | void eio_submit (eio_req *req); |
277 | /* cancel a request as soon fast as possible, if possible */ |
333 | /* cancel a request as soon fast as possible, if possible */ |
278 | void eio_cancel (eio_req *req); |
334 | void eio_cancel (eio_req *req); |
279 | /* destroy a request that has never been submitted */ |
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280 | void eio_destroy (eio_req *req); |
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281 | |
335 | |
282 | /*****************************************************************************/ |
336 | /*****************************************************************************/ |
283 | /* convinience functions */ |
337 | /* convenience functions */ |
284 | |
338 | |
285 | ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count); |
339 | ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count); |
286 | |
340 | |
287 | #ifdef __cplusplus |
341 | #ifdef __cplusplus |
288 | } |
342 | } |