1 | /* |
1 | /* |
2 | * libeio API header |
2 | * libeio API header |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libeio@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012,2015,2016 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 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
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 | |
… | |
… | |
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 |
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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 |
60 | # 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; |
61 | #endif |
87 | #endif |
62 | |
88 | |
63 | #ifndef EIO_STRUCT_STATVFS |
89 | #ifndef EIO_STRUCT_STATVFS |
64 | # define EIO_STRUCT_STATVFS struct statvfs |
90 | # define EIO_STRUCT_STATVFS struct statvfs |
65 | #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 struct eio_pwd *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); |
66 | |
102 | |
67 | /* for readdir */ |
103 | /* for readdir */ |
68 | |
104 | |
69 | /* eio_readdir flags */ |
105 | /* eio_readdir flags */ |
70 | enum |
106 | enum |
… | |
… | |
104 | { |
140 | { |
105 | 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 */ |
106 | unsigned short namelen; /* size of filename without trailing 0 */ |
142 | unsigned short namelen; /* size of filename without trailing 0 */ |
107 | unsigned char type; /* one of EIO_DT_* */ |
143 | unsigned char type; /* one of EIO_DT_* */ |
108 | signed char score; /* internal use */ |
144 | signed char score; /* internal use */ |
109 | ino_t inode; /* the inode number, if available, otherwise unspecified */ |
145 | eio_ino_t inode; /* the inode number, if available, otherwise unspecified */ |
110 | }; |
146 | }; |
111 | |
147 | |
112 | /* eio_msync flags */ |
148 | /* eio_msync flags */ |
113 | enum |
149 | enum |
114 | { |
150 | { |
… | |
… | |
116 | EIO_MS_INVALIDATE = 2, |
152 | EIO_MS_INVALIDATE = 2, |
117 | EIO_MS_SYNC = 4 |
153 | EIO_MS_SYNC = 4 |
118 | }; |
154 | }; |
119 | |
155 | |
120 | /* eio_mtouch flags */ |
156 | /* eio_mtouch flags */ |
121 | |
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122 | enum |
157 | enum |
123 | { |
158 | { |
124 | EIO_MT_MODIFY = 1 |
159 | EIO_MT_MODIFY = 1 |
125 | }; |
160 | }; |
126 | |
161 | |
127 | /* eio_sync_file_range flags */ |
162 | /* eio_sync_file_range flags */ |
128 | |
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129 | enum |
163 | enum |
130 | { |
164 | { |
131 | EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1, |
165 | EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1, |
132 | EIO_SYNC_FILE_RANGE_WRITE = 2, |
166 | EIO_SYNC_FILE_RANGE_WRITE = 2, |
133 | EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4 |
167 | EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4 |
134 | }; |
168 | }; |
135 | |
169 | |
136 | 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 | /* these MUST match the value in linux/falloc.h */ |
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174 | EIO_FALLOC_FL_KEEP_SIZE = 0x01, |
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175 | EIO_FALLOC_FL_PUNCH_HOLE = 0x02, |
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176 | EIO_FALLOC_FL_COLLAPSE_RANGE = 0x08, |
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177 | EIO_FALLOC_FL_ZERO_RANGE = 0x10 |
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178 | }; |
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179 | |
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180 | /* timestamps and differences - feel free to use double in your code directly */ |
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181 | typedef double eio_tstamp; |
137 | |
182 | |
138 | /* the eio request structure */ |
183 | /* the eio request structure */ |
139 | |
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140 | enum |
184 | enum |
141 | { |
185 | { |
142 | EIO_CUSTOM, |
186 | EIO_CUSTOM, |
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187 | EIO_WD_OPEN, EIO_WD_CLOSE, |
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188 | |
143 | EIO_OPEN, EIO_CLOSE, EIO_DUP2, |
189 | EIO_CLOSE, EIO_DUP2, |
144 | EIO_READ, EIO_WRITE, |
190 | EIO_SEEK, EIO_READ, EIO_WRITE, EIO_FCNTL, EIO_IOCTL, |
145 | EIO_READAHEAD, EIO_SENDFILE, |
191 | EIO_READAHEAD, EIO_SENDFILE, |
146 | EIO_STAT, EIO_LSTAT, EIO_FSTAT, |
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147 | EIO_STATVFS, EIO_FSTATVFS, |
192 | EIO_FSTAT, EIO_FSTATVFS, |
148 | EIO_TRUNCATE, EIO_FTRUNCATE, |
193 | EIO_FTRUNCATE, EIO_FUTIME, EIO_FCHMOD, EIO_FCHOWN, |
149 | EIO_UTIME, EIO_FUTIME, |
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150 | EIO_CHMOD, EIO_FCHMOD, |
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151 | EIO_CHOWN, EIO_FCHOWN, |
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152 | EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, |
194 | EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, EIO_SYNCFS, |
153 | EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE, |
195 | EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE, EIO_FALLOCATE, |
154 | EIO_MLOCK, EIO_MLOCKALL, |
196 | EIO_MLOCK, EIO_MLOCKALL, |
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197 | EIO_GROUP, EIO_NOP, |
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198 | EIO_BUSY, |
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199 | |
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200 | /* these use wd + ptr1, but are emulated */ |
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201 | EIO_REALPATH, |
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202 | EIO_READDIR, |
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203 | |
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204 | /* all the following requests use wd + ptr1 as path in xxxat functions */ |
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205 | EIO_OPEN, |
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206 | EIO_STAT, EIO_LSTAT, EIO_STATVFS, |
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207 | EIO_TRUNCATE, |
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208 | EIO_UTIME, |
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209 | EIO_CHMOD, |
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210 | EIO_CHOWN, |
155 | EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME, |
211 | EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME, |
156 | EIO_MKNOD, EIO_READDIR, |
212 | EIO_MKNOD, |
157 | EIO_LINK, EIO_SYMLINK, EIO_READLINK, |
213 | EIO_LINK, EIO_SYMLINK, EIO_READLINK, |
158 | EIO_GROUP, EIO_NOP, |
214 | |
159 | EIO_BUSY |
215 | EIO_REQ_TYPE_NUM |
160 | }; |
216 | }; |
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217 | |
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218 | /* seek whence modes */ |
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219 | /* these are guaranteed to hasve the traditional 0, 1, 2 values, */ |
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220 | /* so you might as wlel use those */ |
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221 | enum |
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222 | { |
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223 | EIO_SEEK_SET = 0, |
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224 | EIO_SEEK_CUR = 1, |
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225 | EIO_SEEK_END = 2 |
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226 | }; |
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227 | |
161 | |
228 | |
162 | /* mlockall constants */ |
229 | /* mlockall constants */ |
163 | enum |
230 | enum |
164 | { |
231 | { |
165 | EIO_MCL_CURRENT = 1, |
232 | EIO_MCL_CURRENT = 1, |
166 | EIO_MCL_FUTURE = 2, |
233 | EIO_MCL_FUTURE = 2 |
167 | }; |
234 | }; |
168 | |
235 | |
169 | /* request priorities */ |
236 | /* request priorities */ |
170 | |
237 | |
171 | enum { |
238 | enum { |
172 | EIO_PRI_MIN = -4, |
239 | EIO_PRI_MIN = -4, |
173 | EIO_PRI_MAX = 4, |
240 | EIO_PRI_MAX = 4, |
174 | EIO_PRI_DEFAULT = 0, |
241 | EIO_PRI_DEFAULT = 0 |
175 | }; |
242 | }; |
176 | |
243 | |
177 | /* eio request structure */ |
244 | /* eio request structure */ |
178 | /* this structure is mostly read-only */ |
245 | /* this structure is mostly read-only */ |
179 | /* when initialising it, all members must be zero-initialised */ |
246 | /* when initialising it, all members must be zero-initialised */ |
180 | struct eio_req |
247 | struct eio_req |
181 | { |
248 | { |
182 | eio_req volatile *next; /* private ETP */ |
249 | eio_req volatile *next; /* private ETP */ |
183 | |
250 | |
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251 | eio_wd wd; /* all applicable requests: working directory of pathname, old name; wd_open: return wd */ |
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252 | |
184 | ssize_t result; /* result of syscall, e.g. result = read (... */ |
253 | eio_ssize_t result; /* result of syscall, e.g. result = read (... */ |
185 | off_t offs; /* read, write, truncate, readahead, sync_file_range: file offset, mknod: dev_t */ |
254 | off_t offs; /* read, write, truncate, readahead, sync_file_range, fallocate: file offset, mknod: dev_t */ |
186 | size_t size; /* read, write, readahead, sendfile, msync, mlock, sync_file_range: length */ |
255 | size_t size; /* read, write, readahead, sendfile, msync, mlock, sync_file_range, fallocate: length */ |
187 | void *ptr1; /* all applicable requests: pathname, old name; readdir: optional eio_dirents */ |
256 | void *ptr1; /* all applicable requests: pathname, old name, readdir: optional eio_dirents */ |
188 | void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */ |
257 | void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */ |
189 | eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */ |
258 | eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */ |
190 | eio_tstamp nv2; /* utime, futime: mtime */ |
259 | eio_tstamp nv2; /* utime, futime: mtime */ |
191 | |
260 | |
192 | int type; /* EIO_xxx constant ETP */ |
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193 | int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, mlockall, readdir: flags */ |
261 | int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, mlockall, readdir: flags */ |
194 | long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, sync_file_range: flags */ |
262 | long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, seek: whence, fcntl, ioctl: request, sync_file_range, fallocate: flags */ |
195 | long int3; /* chown, fchown: gid */ |
263 | long int3; /* chown, fchown: gid; rename, link: working directory of new name */ |
196 | int errorno; /* errno value on syscall return */ |
264 | int errorno; /* errno value on syscall return */ |
197 | |
265 | |
198 | unsigned char flags; /* private */ |
266 | unsigned char flags; /* private */ |
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267 | |
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268 | signed char type;/* EIO_xxx constant ETP */ |
199 | signed char pri; /* the priority */ |
269 | signed char pri; /* the priority ETP */ |
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270 | #if __i386 || __amd64 |
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271 | unsigned char cancelled; /* ETP */ |
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272 | #else |
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273 | sig_atomic_t cancelled; /* ETP */ |
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274 | #endif |
200 | |
275 | |
201 | void *data; |
276 | void *data; |
202 | eio_cb finish; |
277 | eio_cb finish; |
203 | void (*destroy)(eio_req *req); /* called when requets no longer needed */ |
278 | void (*destroy)(eio_req *req); /* called when request no longer needed */ |
204 | void (*feed)(eio_req *req); /* only used for group requests */ |
279 | void (*feed)(eio_req *req); /* only used for group requests */ |
205 | |
280 | |
206 | EIO_REQ_MEMBERS |
281 | EIO_REQ_MEMBERS |
207 | |
282 | |
208 | eio_req *grp, *grp_prev, *grp_next, *grp_first; /* private */ |
283 | eio_req *grp, *grp_prev, *grp_next, *grp_first; /* private ETP */ |
209 | }; |
284 | }; |
210 | |
285 | |
211 | /* _private_ request flags */ |
286 | /* _private_ request flags */ |
212 | enum { |
287 | enum { |
213 | EIO_FLAG_CANCELLED = 0x01, /* request was cancelled */ |
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214 | EIO_FLAG_PTR1_FREE = 0x02, /* need to free(ptr1) */ |
288 | EIO_FLAG_PTR1_FREE = 0x01, /* need to free(ptr1) */ |
215 | EIO_FLAG_PTR2_FREE = 0x04, /* need to free(ptr2) */ |
289 | EIO_FLAG_PTR2_FREE = 0x02, /* need to free(ptr2) */ |
216 | EIO_FLAG_GROUPADD = 0x08 /* some request was added to the group */ |
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217 | }; |
290 | }; |
218 | |
291 | |
219 | /* undocumented/unsupported/private helper */ |
292 | /* undocumented/unsupported/private helper */ |
220 | /*void eio_page_align (void **addr, size_t *length);*/ |
293 | /*void eio_page_align (void **addr, size_t *length);*/ |
221 | |
294 | |
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239 | * maximum wanted number |
312 | * maximum wanted number |
240 | * or maximum idle number of threads */ |
313 | * or maximum idle number of threads */ |
241 | void eio_set_min_parallel (unsigned int nthreads); |
314 | void eio_set_min_parallel (unsigned int nthreads); |
242 | void eio_set_max_parallel (unsigned int nthreads); |
315 | void eio_set_max_parallel (unsigned int nthreads); |
243 | void eio_set_max_idle (unsigned int nthreads); |
316 | void eio_set_max_idle (unsigned int nthreads); |
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317 | void eio_set_idle_timeout (unsigned int seconds); |
244 | |
318 | |
245 | unsigned int eio_nreqs (void); /* number of requests in-flight */ |
319 | unsigned int eio_nreqs (void); /* number of requests in-flight */ |
246 | unsigned int eio_nready (void); /* number of not-yet handled requests */ |
320 | unsigned int eio_nready (void); /* number of not-yet handled requests */ |
247 | unsigned int eio_npending (void); /* numbe rof finished but unhandled requests */ |
321 | unsigned int eio_npending (void); /* number of finished but unhandled requests */ |
248 | unsigned int eio_nthreads (void); /* number of worker threads in use currently */ |
322 | unsigned int eio_nthreads (void); /* number of worker threads in use currently */ |
249 | |
323 | |
250 | /*****************************************************************************/ |
324 | /*****************************************************************************/ |
251 | /* convinience wrappers */ |
325 | /* convenience wrappers */ |
252 | |
326 | |
253 | #ifndef EIO_NO_WRAPPERS |
327 | #ifndef EIO_NO_WRAPPERS |
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328 | eio_req *eio_wd_open (const char *path, int pri, eio_cb cb, void *data); /* result=wd */ |
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329 | eio_req *eio_wd_close (eio_wd wd, int pri, eio_cb cb, void *data); |
254 | eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */ |
330 | eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */ |
255 | eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */ |
331 | eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */ |
256 | eio_req *eio_sync (int pri, eio_cb cb, void *data); |
332 | eio_req *eio_sync (int pri, eio_cb cb, void *data); |
257 | eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data); |
333 | eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data); |
258 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data); |
334 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data); |
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335 | eio_req *eio_syncfs (int fd, int pri, eio_cb cb, void *data); |
259 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
336 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
260 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
337 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
261 | eio_req *eio_mlock (void *addr, size_t length, int pri, eio_cb cb, void *data); |
338 | eio_req *eio_mlock (void *addr, size_t length, int pri, eio_cb cb, void *data); |
262 | eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data); |
339 | eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data); |
263 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data); |
340 | 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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341 | eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data); |
264 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data); |
342 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data); |
265 | eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data); |
343 | eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data); |
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344 | eio_req *eio_seek (int fd, off_t offset, int whence, int pri, eio_cb cb, void *data); |
266 | eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
345 | eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
267 | eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
346 | eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
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347 | eio_req *eio_fcntl (int fd, int cmd, void *arg, int pri, eio_cb cb, void *data); |
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348 | eio_req *eio_ioctl (int fd, unsigned long request, void *buf, int pri, eio_cb cb, void *data); |
268 | eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
349 | eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
269 | eio_req *eio_fstatvfs (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
350 | eio_req *eio_fstatvfs (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
270 | eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); |
351 | eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); |
271 | eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data); |
352 | eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data); |
272 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data); |
353 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data); |
273 | eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data); |
354 | eio_req *eio_fchown (int fd, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data); |
274 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data); |
355 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data); |
275 | eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data); |
356 | eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data); |
276 | eio_req *eio_open (const char *path, int flags, mode_t mode, int pri, eio_cb cb, void *data); |
357 | eio_req *eio_open (const char *path, int flags, mode_t mode, int pri, eio_cb cb, void *data); |
277 | eio_req *eio_utime (const char *path, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); |
358 | eio_req *eio_utime (const char *path, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); |
278 | eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data); |
359 | eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data); |
279 | eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data); |
360 | eio_req *eio_chown (const char *path, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data); |
280 | eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data); |
361 | eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data); |
281 | eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data); |
362 | eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data); |
282 | eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
363 | eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
283 | eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data); |
364 | eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data); |
284 | eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data); |
365 | eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data); |
285 | eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
366 | eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
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367 | eio_req *eio_realpath (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
286 | eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
368 | eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
287 | eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
369 | eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
288 | eio_req *eio_statvfs (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
370 | eio_req *eio_statvfs (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
289 | eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data); |
371 | eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data); |
290 | eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
372 | eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
291 | eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
373 | eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
292 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
374 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
293 | eio_req *eio_custom (eio_cb execute, int pri, eio_cb cb, void *data); |
375 | eio_req *eio_custom (void (*execute)(eio_req *), int pri, eio_cb cb, void *data); |
294 | #endif |
376 | #endif |
295 | |
377 | |
296 | /*****************************************************************************/ |
378 | /*****************************************************************************/ |
297 | /* groups */ |
379 | /* groups */ |
298 | |
380 | |
… | |
… | |
304 | |
386 | |
305 | /*****************************************************************************/ |
387 | /*****************************************************************************/ |
306 | /* request api */ |
388 | /* request api */ |
307 | |
389 | |
308 | /* true if the request was cancelled, useful in the invoke callback */ |
390 | /* true if the request was cancelled, useful in the invoke callback */ |
309 | #define EIO_CANCELLED(req) ((req)->flags & EIO_FLAG_CANCELLED) |
391 | #define EIO_CANCELLED(req) ((req)->cancelled) |
310 | |
392 | |
311 | #define EIO_RESULT(req) ((req)->result) |
393 | #define EIO_RESULT(req) ((req)->result) |
312 | /* returns a pointer to the result buffer allocated by eio */ |
394 | /* returns a pointer to the result buffer allocated by eio */ |
313 | #define EIO_BUF(req) ((req)->ptr2) |
395 | #define EIO_BUF(req) ((req)->ptr2) |
314 | #define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req)) |
396 | #define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req)) |
… | |
… | |
317 | |
399 | |
318 | /* submit a request for execution */ |
400 | /* submit a request for execution */ |
319 | void eio_submit (eio_req *req); |
401 | void eio_submit (eio_req *req); |
320 | /* cancel a request as soon fast as possible, if possible */ |
402 | /* cancel a request as soon fast as possible, if possible */ |
321 | void eio_cancel (eio_req *req); |
403 | void eio_cancel (eio_req *req); |
322 | /* destroy a request that has never been submitted */ |
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323 | void eio_destroy (eio_req *req); |
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324 | |
404 | |
325 | /*****************************************************************************/ |
405 | /*****************************************************************************/ |
326 | /* convinience functions */ |
406 | /* convenience functions */ |
327 | |
407 | |
328 | ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count); |
408 | eio_ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count); |
329 | |
409 | |
330 | #ifdef __cplusplus |
410 | #ifdef __cplusplus |
331 | } |
411 | } |
332 | #endif |
412 | #endif |
333 | |
413 | |