1 | /* |
1 | /* |
2 | * libeio API header |
2 | * libeio API header |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libeio@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libeio@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
43 | #ifdef __cplusplus |
43 | #ifdef __cplusplus |
44 | extern "C" { |
44 | extern "C" { |
45 | #endif |
45 | #endif |
46 | |
46 | |
47 | #include <stddef.h> |
47 | #include <stddef.h> |
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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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… | |
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; |
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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 |
66 | |
92 | |
67 | /* for readdir */ |
93 | /* for readdir */ |
68 | |
94 | |
69 | /* eio_readdir flags */ |
95 | /* eio_readdir flags */ |
70 | enum { |
96 | enum |
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97 | { |
71 | EIO_READDIR_DENTS = 0x01, /* ptr2 contains eio_dirents, not just the (unsorted) names */ |
98 | EIO_READDIR_DENTS = 0x01, /* ptr2 contains eio_dirents, not just the (unsorted) names */ |
72 | EIO_READDIR_DIRS_FIRST = 0x02, /* dirents gets sorted into a good stat() ing order to find directories first */ |
99 | EIO_READDIR_DIRS_FIRST = 0x02, /* dirents gets sorted into a good stat() ing order to find directories first */ |
73 | EIO_READDIR_STAT_ORDER = 0x04, /* dirents gets sorted into a good stat() ing order to quickly stat all files */ |
100 | EIO_READDIR_STAT_ORDER = 0x04, /* dirents gets sorted into a good stat() ing order to quickly stat all files */ |
74 | EIO_READDIR_FOUND_UNKNOWN = 0x80, /* set by eio_readdir when *_ARRAY was set and any TYPE=UNKNOWN's were found */ |
101 | EIO_READDIR_FOUND_UNKNOWN = 0x80, /* set by eio_readdir when *_ARRAY was set and any TYPE=UNKNOWN's were found */ |
75 | |
102 | |
76 | EIO_READDIR_CUSTOM1 = 0x100, /* for use by apps */ |
103 | EIO_READDIR_CUSTOM1 = 0x100, /* for use by apps */ |
77 | EIO_READDIR_CUSTOM2 = 0x200 /* for use by apps */ |
104 | EIO_READDIR_CUSTOM2 = 0x200 /* for use by apps */ |
78 | }; |
105 | }; |
79 | |
106 | |
80 | /* using "typical" values in the hope that the compiler will do something sensible */ |
107 | /* using "typical" values in the hope that the compiler will do something sensible */ |
81 | enum eio_dtype { |
108 | enum eio_dtype |
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109 | { |
82 | EIO_DT_UNKNOWN = 0, |
110 | EIO_DT_UNKNOWN = 0, |
83 | EIO_DT_FIFO = 1, |
111 | EIO_DT_FIFO = 1, |
84 | EIO_DT_CHR = 2, |
112 | EIO_DT_CHR = 2, |
85 | EIO_DT_MPC = 3, /* multiplexed char device (v7+coherent) */ |
113 | EIO_DT_MPC = 3, /* multiplexed char device (v7+coherent) */ |
86 | EIO_DT_DIR = 4, |
114 | EIO_DT_DIR = 4, |
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96 | EIO_DT_DOOR = 13, /* solaris door */ |
124 | EIO_DT_DOOR = 13, /* solaris door */ |
97 | EIO_DT_WHT = 14, |
125 | EIO_DT_WHT = 14, |
98 | EIO_DT_MAX = 15 /* highest DT_VALUE ever, hopefully */ |
126 | EIO_DT_MAX = 15 /* highest DT_VALUE ever, hopefully */ |
99 | }; |
127 | }; |
100 | |
128 | |
101 | struct eio_dirent { |
129 | struct eio_dirent |
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130 | { |
102 | int nameofs; /* offset of null-terminated name string in (char *)req->ptr2 */ |
131 | int nameofs; /* offset of null-terminated name string in (char *)req->ptr2 */ |
103 | unsigned short namelen; /* size of filename without trailing 0 */ |
132 | unsigned short namelen; /* size of filename without trailing 0 */ |
104 | unsigned char type; /* one of EIO_DT_* */ |
133 | unsigned char type; /* one of EIO_DT_* */ |
105 | signed char score; /* internal use */ |
134 | signed char score; /* internal use */ |
106 | ino_t inode; /* the inode number, if available, otherwise unspecified */ |
135 | eio_ino_t inode; /* the inode number, if available, otherwise unspecified */ |
107 | }; |
136 | }; |
108 | |
137 | |
109 | /* eio_msync flags */ |
138 | /* eio_msync flags */ |
110 | enum { |
139 | enum |
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140 | { |
111 | EIO_MS_ASYNC = 1, |
141 | EIO_MS_ASYNC = 1, |
112 | EIO_MS_INVALIDATE = 2, |
142 | EIO_MS_INVALIDATE = 2, |
113 | EIO_MS_SYNC = 4 |
143 | EIO_MS_SYNC = 4 |
114 | }; |
144 | }; |
115 | |
145 | |
116 | /* eio_mtouch flags */ |
146 | /* eio_mtouch flags */ |
117 | |
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118 | enum { |
147 | enum |
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148 | { |
119 | EIO_MT_MODIFY = 1 |
149 | EIO_MT_MODIFY = 1 |
120 | }; |
150 | }; |
121 | |
151 | |
122 | /* eio_sync_file_range flags */ |
152 | /* eio_sync_file_range flags */ |
123 | |
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124 | enum { |
153 | enum |
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154 | { |
125 | EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1, |
155 | EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1, |
126 | EIO_SYNC_FILE_RANGE_WRITE = 2, |
156 | EIO_SYNC_FILE_RANGE_WRITE = 2, |
127 | EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4 |
157 | EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4 |
128 | }; |
158 | }; |
129 | |
159 | |
130 | typedef double eio_tstamp; /* feel free to use double in your code directly */ |
160 | /* eio_fallocate flags */ |
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161 | enum |
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162 | { |
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163 | EIO_FALLOC_FL_KEEP_SIZE = 1 /* MUST match the value in linux/falloc.h */ |
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164 | }; |
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165 | |
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166 | /* timestamps and differences - feel free to use double in your code directly */ |
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167 | typedef double eio_tstamp; |
131 | |
168 | |
132 | /* the eio request structure */ |
169 | /* the eio request structure */ |
133 | |
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134 | enum { |
170 | enum |
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171 | { |
135 | EIO_CUSTOM, |
172 | EIO_CUSTOM, |
136 | EIO_OPEN, EIO_CLOSE, EIO_DUP2, |
173 | EIO_OPEN, EIO_CLOSE, EIO_DUP2, |
137 | EIO_READ, EIO_WRITE, |
174 | EIO_READ, EIO_WRITE, |
138 | EIO_READAHEAD, EIO_SENDFILE, |
175 | EIO_READAHEAD, EIO_SENDFILE, |
139 | EIO_STAT, EIO_LSTAT, EIO_FSTAT, |
176 | EIO_STAT, EIO_LSTAT, EIO_FSTAT, |
140 | EIO_STATVFS, EIO_FSTATVFS, |
177 | EIO_STATVFS, EIO_FSTATVFS, |
141 | EIO_TRUNCATE, EIO_FTRUNCATE, |
178 | EIO_TRUNCATE, EIO_FTRUNCATE, |
142 | EIO_UTIME, EIO_FUTIME, |
179 | EIO_UTIME, EIO_FUTIME, |
143 | EIO_CHMOD, EIO_FCHMOD, |
180 | EIO_CHMOD, EIO_FCHMOD, |
144 | EIO_CHOWN, EIO_FCHOWN, |
181 | EIO_CHOWN, EIO_FCHOWN, |
145 | EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, |
182 | EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC, EIO_SYNCFS, |
146 | EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE, |
183 | EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE, EIO_FALLOCATE, |
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184 | EIO_MLOCK, EIO_MLOCKALL, |
147 | EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME, |
185 | EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME, |
148 | EIO_MKNOD, EIO_READDIR, |
186 | EIO_MKNOD, EIO_READDIR, |
149 | EIO_LINK, EIO_SYMLINK, EIO_READLINK, |
187 | EIO_LINK, EIO_SYMLINK, EIO_READLINK, EIO_REALPATH, |
150 | EIO_GROUP, EIO_NOP, |
188 | EIO_GROUP, EIO_NOP, |
151 | EIO_BUSY |
189 | EIO_BUSY |
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190 | }; |
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191 | |
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192 | /* mlockall constants */ |
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193 | enum |
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194 | { |
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195 | EIO_MCL_CURRENT = 1, |
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196 | EIO_MCL_FUTURE = 2, |
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197 | }; |
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198 | |
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199 | /* request priorities */ |
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200 | |
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201 | enum { |
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202 | EIO_PRI_MIN = -4, |
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203 | EIO_PRI_MAX = 4, |
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204 | EIO_PRI_DEFAULT = 0, |
152 | }; |
205 | }; |
153 | |
206 | |
154 | /* eio request structure */ |
207 | /* eio request structure */ |
155 | /* this structure is mostly read-only */ |
208 | /* this structure is mostly read-only */ |
156 | /* when initialising it, all members must be zero-initialised */ |
209 | /* when initialising it, all members must be zero-initialised */ |
157 | struct eio_req |
210 | struct eio_req |
158 | { |
211 | { |
159 | eio_req volatile *next; /* private ETP */ |
212 | eio_req volatile *next; /* private ETP */ |
160 | |
213 | |
161 | ssize_t result; /* result of syscall, e.g. result = read (... */ |
214 | eio_ssize_t result; /* result of syscall, e.g. result = read (... */ |
162 | off_t offs; /* read, write, truncate, readahead, sync_file_range: file offset */ |
215 | off_t offs; /* read, write, truncate, readahead, sync_file_range, fallocate: file offset, mknod: dev_t */ |
163 | size_t size; /* read, write, readahead, sendfile, msync, sync_file_range: length */ |
216 | size_t size; /* read, write, readahead, sendfile, msync, mlock, sync_file_range, fallocate: length */ |
164 | void *ptr1; /* all applicable requests: pathname, old name; readdir: optional eio_dirents */ |
217 | void *ptr1; /* all applicable requests: pathname, old name; readdir: optional eio_dirents */ |
165 | void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */ |
218 | void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */ |
166 | eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */ |
219 | eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */ |
167 | eio_tstamp nv2; /* utime, futime: mtime */ |
220 | eio_tstamp nv2; /* utime, futime: mtime */ |
168 | |
221 | |
169 | int type; /* EIO_xxx constant ETP */ |
222 | int type; /* EIO_xxx constant ETP */ |
170 | int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, readdir: flags */ |
223 | int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, mlockall, readdir: flags */ |
171 | long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, sync_file_range: flags */ |
224 | long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, sync_file_range, fallocate: flags */ |
172 | long int3; /* chown, fchown: gid; mknod: dev_t */ |
225 | long int3; /* chown, fchown: gid */ |
173 | int errorno; /* errno value on syscall return */ |
226 | int errorno; /* errno value on syscall return */ |
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227 | |
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228 | #if __i386 || __amd64 |
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229 | unsigned char cancelled; |
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230 | #else |
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231 | sig_atomic_t cancelled; |
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232 | #endif |
174 | |
233 | |
175 | unsigned char flags; /* private */ |
234 | unsigned char flags; /* private */ |
176 | signed char pri; /* the priority */ |
235 | signed char pri; /* the priority */ |
177 | |
236 | |
178 | void *data; |
237 | void *data; |
179 | eio_cb finish; |
238 | eio_cb finish; |
180 | void (*destroy)(eio_req *req); /* called when requets no longer needed */ |
239 | void (*destroy)(eio_req *req); /* called when request no longer needed */ |
181 | void (*feed)(eio_req *req); /* only used for group requests */ |
240 | void (*feed)(eio_req *req); /* only used for group requests */ |
182 | |
241 | |
183 | EIO_REQ_MEMBERS |
242 | EIO_REQ_MEMBERS |
184 | |
243 | |
185 | eio_req *grp, *grp_prev, *grp_next, *grp_first; /* private */ |
244 | eio_req *grp, *grp_prev, *grp_next, *grp_first; /* private */ |
186 | }; |
245 | }; |
187 | |
246 | |
188 | /* _private_ flags */ |
247 | /* _private_ request flags */ |
189 | enum { |
248 | enum { |
190 | EIO_FLAG_CANCELLED = 0x01, /* request was cancelled */ |
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191 | EIO_FLAG_PTR1_FREE = 0x02, /* need to free(ptr1) */ |
249 | EIO_FLAG_PTR1_FREE = 0x01, /* need to free(ptr1) */ |
192 | EIO_FLAG_PTR2_FREE = 0x04, /* need to free(ptr2) */ |
250 | EIO_FLAG_PTR2_FREE = 0x02, /* need to free(ptr2) */ |
193 | EIO_FLAG_GROUPADD = 0x08 /* some request was added to the group */ |
251 | EIO_FLAG_GROUPADD = 0x04 /* some request was added to the group */ |
194 | }; |
252 | }; |
195 | |
253 | |
196 | enum { |
254 | /* undocumented/unsupported/private helper */ |
197 | EIO_PRI_MIN = -4, |
255 | /*void eio_page_align (void **addr, size_t *length);*/ |
198 | EIO_PRI_MAX = 4, |
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199 | EIO_PRI_DEFAULT = 0, |
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200 | }; |
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201 | |
256 | |
202 | /* returns < 0 on error, errno set |
257 | /* returns < 0 on error, errno set |
203 | * need_poll, if non-zero, will be called when results are available |
258 | * need_poll, if non-zero, will be called when results are available |
204 | * and eio_poll_cb needs to be invoked (it MUST NOT call eio_poll_cb itself). |
259 | * and eio_poll_cb needs to be invoked (it MUST NOT call eio_poll_cb itself). |
205 | * done_poll is called when the need to poll is gone. |
260 | * done_poll is called when the need to poll is gone. |
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219 | * maximum wanted number |
274 | * maximum wanted number |
220 | * or maximum idle number of threads */ |
275 | * or maximum idle number of threads */ |
221 | void eio_set_min_parallel (unsigned int nthreads); |
276 | void eio_set_min_parallel (unsigned int nthreads); |
222 | void eio_set_max_parallel (unsigned int nthreads); |
277 | void eio_set_max_parallel (unsigned int nthreads); |
223 | void eio_set_max_idle (unsigned int nthreads); |
278 | void eio_set_max_idle (unsigned int nthreads); |
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279 | void eio_set_idle_timeout (unsigned int seconds); |
224 | |
280 | |
225 | unsigned int eio_nreqs (void); /* number of requests in-flight */ |
281 | unsigned int eio_nreqs (void); /* number of requests in-flight */ |
226 | unsigned int eio_nready (void); /* number of not-yet handled requests */ |
282 | unsigned int eio_nready (void); /* number of not-yet handled requests */ |
227 | unsigned int eio_npending (void); /* numbe rof finished but unhandled requests */ |
283 | unsigned int eio_npending (void); /* number of finished but unhandled requests */ |
228 | unsigned int eio_nthreads (void); /* number of worker threads in use currently */ |
284 | unsigned int eio_nthreads (void); /* number of worker threads in use currently */ |
229 | |
285 | |
230 | /*****************************************************************************/ |
286 | /*****************************************************************************/ |
231 | /* convinience wrappers */ |
287 | /* convenience wrappers */ |
232 | |
288 | |
233 | #ifndef EIO_NO_WRAPPERS |
289 | #ifndef EIO_NO_WRAPPERS |
234 | eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */ |
290 | eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */ |
235 | eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */ |
291 | eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */ |
236 | eio_req *eio_sync (int pri, eio_cb cb, void *data); |
292 | eio_req *eio_sync (int pri, eio_cb cb, void *data); |
237 | eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data); |
293 | eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data); |
238 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data); |
294 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data); |
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295 | eio_req *eio_syncfs (int fd, int pri, eio_cb cb, void *data); |
239 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
296 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
240 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
297 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data); |
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298 | eio_req *eio_mlock (void *addr, size_t length, int pri, eio_cb cb, void *data); |
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299 | eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data); |
241 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data); |
300 | 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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301 | eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data); |
242 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data); |
302 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data); |
243 | eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data); |
303 | eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data); |
244 | eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
304 | eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
245 | eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
305 | eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data); |
246 | eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
306 | eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
247 | eio_req *eio_fstatvfs (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
307 | eio_req *eio_fstatvfs (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
248 | eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); |
308 | eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); |
249 | eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data); |
309 | eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data); |
250 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data); |
310 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data); |
251 | eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data); |
311 | eio_req *eio_fchown (int fd, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data); |
252 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data); |
312 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data); |
253 | eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data); |
313 | eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data); |
254 | eio_req *eio_open (const char *path, int flags, mode_t mode, int pri, eio_cb cb, void *data); |
314 | eio_req *eio_open (const char *path, int flags, mode_t mode, int pri, eio_cb cb, void *data); |
255 | eio_req *eio_utime (const char *path, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); |
315 | eio_req *eio_utime (const char *path, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data); |
256 | eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data); |
316 | eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data); |
257 | eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data); |
317 | eio_req *eio_chown (const char *path, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data); |
258 | eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data); |
318 | eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data); |
259 | eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data); |
319 | eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data); |
260 | eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
320 | eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
261 | eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data); |
321 | eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data); |
262 | eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data); |
322 | eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data); |
263 | eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
323 | eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
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324 | eio_req *eio_realpath (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */ |
264 | eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
325 | eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
265 | eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
326 | eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
266 | eio_req *eio_statvfs (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
327 | eio_req *eio_statvfs (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */ |
267 | eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data); |
328 | eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data); |
268 | eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
329 | eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
269 | eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
330 | eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
270 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
331 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data); |
271 | eio_req *eio_custom (eio_cb execute, int pri, eio_cb cb, void *data); |
332 | eio_req *eio_custom (void (*execute)(eio_req *), int pri, eio_cb cb, void *data); |
272 | #endif |
333 | #endif |
273 | |
334 | |
274 | /*****************************************************************************/ |
335 | /*****************************************************************************/ |
275 | /* groups */ |
336 | /* groups */ |
276 | |
337 | |
… | |
… | |
282 | |
343 | |
283 | /*****************************************************************************/ |
344 | /*****************************************************************************/ |
284 | /* request api */ |
345 | /* request api */ |
285 | |
346 | |
286 | /* true if the request was cancelled, useful in the invoke callback */ |
347 | /* true if the request was cancelled, useful in the invoke callback */ |
287 | #define EIO_CANCELLED(req) ((req)->flags & EIO_FLAG_CANCELLED) |
348 | #define EIO_CANCELLED(req) ((req)->cancelled) |
288 | |
349 | |
289 | #define EIO_RESULT(req) ((req)->result) |
350 | #define EIO_RESULT(req) ((req)->result) |
290 | /* returns a pointer to the result buffer allocated by eio */ |
351 | /* returns a pointer to the result buffer allocated by eio */ |
291 | #define EIO_BUF(req) ((req)->ptr2) |
352 | #define EIO_BUF(req) ((req)->ptr2) |
292 | #define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req)) |
353 | #define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req)) |
… | |
… | |
295 | |
356 | |
296 | /* submit a request for execution */ |
357 | /* submit a request for execution */ |
297 | void eio_submit (eio_req *req); |
358 | void eio_submit (eio_req *req); |
298 | /* cancel a request as soon fast as possible, if possible */ |
359 | /* cancel a request as soon fast as possible, if possible */ |
299 | void eio_cancel (eio_req *req); |
360 | void eio_cancel (eio_req *req); |
300 | /* destroy a request that has never been submitted */ |
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301 | void eio_destroy (eio_req *req); |
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302 | |
361 | |
303 | /*****************************************************************************/ |
362 | /*****************************************************************************/ |
304 | /* convinience functions */ |
363 | /* convenience functions */ |
305 | |
364 | |
306 | ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count); |
365 | eio_ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count); |
307 | |
366 | |
308 | #ifdef __cplusplus |
367 | #ifdef __cplusplus |
309 | } |
368 | } |
310 | #endif |
369 | #endif |
311 | |
370 | |