… | |
… | |
54 | #include <stdlib.h> |
54 | #include <stdlib.h> |
55 | #include <string.h> |
55 | #include <string.h> |
56 | #include <errno.h> |
56 | #include <errno.h> |
57 | #include <sys/types.h> |
57 | #include <sys/types.h> |
58 | #include <sys/stat.h> |
58 | #include <sys/stat.h> |
59 | #include <sys/statvfs.h> |
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60 | #include <limits.h> |
59 | #include <limits.h> |
61 | #include <fcntl.h> |
60 | #include <fcntl.h> |
62 | #include <assert.h> |
61 | #include <assert.h> |
63 | |
62 | |
64 | /* intptr_t comes from unistd.h, says POSIX/UNIX/tradition */ |
63 | /* intptr_t comes from unistd.h, says POSIX/UNIX/tradition */ |
65 | /* intptr_t only comes form stdint.h, says idiot openbsd coder */ |
64 | /* intptr_t only comes from stdint.h, says idiot openbsd coder */ |
66 | #if HAVE_STDINT_H |
65 | #if HAVE_STDINT_H |
67 | # include <stdint.h> |
66 | # include <stdint.h> |
68 | #endif |
67 | #endif |
69 | |
68 | |
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69 | #ifndef ECANCELED |
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70 | # define ECANCELED EDOM |
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71 | #endif |
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72 | #ifndef ELOOP |
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73 | # define ELOOP EDOM |
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74 | #endif |
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75 | |
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76 | static void eio_destroy (eio_req *req); |
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77 | |
70 | #ifndef EIO_FINISH |
78 | #ifndef EIO_FINISH |
71 | # define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0 |
79 | # define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0 |
72 | #endif |
80 | #endif |
73 | |
81 | |
74 | #ifndef EIO_DESTROY |
82 | #ifndef EIO_DESTROY |
… | |
… | |
77 | |
85 | |
78 | #ifndef EIO_FEED |
86 | #ifndef EIO_FEED |
79 | # define EIO_FEED(req) do { if ((req)->feed ) (req)->feed (req); } while (0) |
87 | # define EIO_FEED(req) do { if ((req)->feed ) (req)->feed (req); } while (0) |
80 | #endif |
88 | #endif |
81 | |
89 | |
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90 | #ifndef EIO_FD_TO_WIN32_HANDLE |
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91 | # define EIO_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
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92 | #endif |
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93 | #ifndef EIO_WIN32_HANDLE_TO_FD |
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94 | # define EIO_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
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95 | #endif |
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96 | |
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97 | #define EIO_ERRNO(errval,retval) ((errno = errval), retval) |
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98 | |
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99 | #define EIO_ENOSYS() EIO_ERRNO (ENOSYS, -1) |
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100 | |
82 | #ifdef _WIN32 |
101 | #ifdef _WIN32 |
83 | |
102 | |
84 | /*doh*/ |
103 | #undef PAGESIZE |
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104 | #define PAGESIZE 4096 /* GetSystemInfo? */ |
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105 | |
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106 | #ifdef EIO_STRUCT_STATI64 |
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107 | #define stat(path,buf) _stati64 (path,buf) |
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108 | #define fstat(fd,buf) _fstati64 (path,buf) |
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109 | #endif |
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110 | #define lstat(path,buf) stat (path,buf) |
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111 | #define fsync(fd) (FlushFileBuffers ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd)) ? 0 : EIO_ERRNO (EBADF, -1)) |
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112 | #define mkdir(path,mode) _mkdir (path) |
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113 | #define link(old,neu) (CreateHardLink (neu, old, 0) ? 0 : EIO_ERRNO (ENOENT, -1)) |
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114 | |
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115 | #define chmod(path,mode) _chmod (path, mode) |
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116 | #define dup(fd) _dup (fd) |
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117 | #define dup2(fd1,fd2) _dup2 (fd1, fd2) |
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118 | |
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119 | #define fchmod(fd,mode) EIO_ENOSYS () |
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120 | #define chown(path,uid,gid) EIO_ENOSYS () |
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121 | #define fchown(fd,uid,gid) EIO_ENOSYS () |
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122 | #define truncate(path,offs) EIO_ENOSYS () /* far-miss: SetEndOfFile */ |
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123 | #define ftruncate(fd,offs) EIO_ENOSYS () /* near-miss: SetEndOfFile */ |
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124 | #define mknod(path,mode,dev) EIO_ENOSYS () |
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125 | #define sync() EIO_ENOSYS () |
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126 | #define readlink(path,buf,s) EIO_ENOSYS () |
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127 | #define statvfs(path,buf) EIO_ENOSYS () |
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128 | #define fstatvfs(fd,buf) EIO_ENOSYS () |
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129 | |
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130 | /* we could even stat and see if it exists */ |
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131 | static int |
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132 | symlink (const char *old, const char *neu) |
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133 | { |
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134 | #if WINVER >= 0x0600 |
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135 | if (CreateSymbolicLink (neu, old, 1)) |
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136 | return 0; |
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137 | |
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138 | if (CreateSymbolicLink (neu, old, 0)) |
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139 | return 0; |
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140 | #endif |
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141 | |
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142 | return EIO_ERRNO (ENOENT, -1); |
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143 | } |
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144 | |
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145 | /* POSIX API only */ |
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146 | #define CreateHardLink(neu,old,flags) 0 |
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147 | #define CreateSymbolicLink(neu,old,flags) 0 |
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148 | |
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149 | struct statvfs |
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150 | { |
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151 | int dummy; |
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152 | }; |
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153 | |
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154 | #define DT_DIR EIO_DT_DIR |
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155 | #define DT_REG EIO_DT_REG |
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156 | #define D_NAME(entp) entp.cFileName |
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157 | #define D_TYPE(entp) (entp.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ? DT_DIR : DT_REG) |
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158 | |
85 | #else |
159 | #else |
86 | |
160 | |
87 | # include <sys/time.h> |
161 | #include <sys/time.h> |
88 | # include <sys/select.h> |
162 | #include <sys/select.h> |
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163 | #include <sys/statvfs.h> |
89 | # include <unistd.h> |
164 | #include <unistd.h> |
90 | # include <utime.h> |
165 | #include <utime.h> |
91 | # include <signal.h> |
166 | #include <signal.h> |
92 | # include <dirent.h> |
167 | #include <dirent.h> |
93 | |
168 | |
94 | #if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES |
169 | #if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES |
95 | # include <sys/mman.h> |
170 | #include <sys/mman.h> |
96 | #endif |
171 | #endif |
97 | |
172 | |
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173 | #define D_NAME(entp) entp->d_name |
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174 | |
98 | /* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */ |
175 | /* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */ |
99 | # if __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__ |
176 | #if __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__ |
100 | # define _DIRENT_HAVE_D_TYPE /* sigh */ |
177 | #define _DIRENT_HAVE_D_TYPE /* sigh */ |
101 | # define D_INO(de) (de)->d_fileno |
178 | #define D_INO(de) (de)->d_fileno |
102 | # define D_NAMLEN(de) (de)->d_namlen |
179 | #define D_NAMLEN(de) (de)->d_namlen |
103 | # elif __linux || defined d_ino || _XOPEN_SOURCE >= 600 |
180 | #elif __linux || defined d_ino || _XOPEN_SOURCE >= 600 |
104 | # define D_INO(de) (de)->d_ino |
181 | #define D_INO(de) (de)->d_ino |
105 | # endif |
182 | #endif |
106 | |
183 | |
107 | #ifdef _D_EXACT_NAMLEN |
184 | #ifdef _D_EXACT_NAMLEN |
108 | # undef D_NAMLEN |
185 | #undef D_NAMLEN |
109 | # define D_NAMLEN(de) _D_EXACT_NAMLEN (de) |
186 | #define D_NAMLEN(de) _D_EXACT_NAMLEN (de) |
110 | #endif |
187 | #endif |
111 | |
188 | |
112 | # ifdef _DIRENT_HAVE_D_TYPE |
189 | #ifdef _DIRENT_HAVE_D_TYPE |
113 | # define D_TYPE(de) (de)->d_type |
190 | #define D_TYPE(de) (de)->d_type |
114 | # endif |
191 | #endif |
115 | |
192 | |
116 | # ifndef EIO_STRUCT_DIRENT |
193 | #ifndef EIO_STRUCT_DIRENT |
117 | # define EIO_STRUCT_DIRENT struct dirent |
194 | #define EIO_STRUCT_DIRENT struct dirent |
118 | # endif |
195 | #endif |
119 | |
196 | |
120 | #endif |
197 | #endif |
121 | |
198 | |
122 | #if HAVE_SENDFILE |
199 | #if HAVE_SENDFILE |
123 | # if __linux |
200 | # if __linux |
… | |
… | |
139 | #endif |
216 | #endif |
140 | #ifndef D_INO |
217 | #ifndef D_INO |
141 | # define D_INO(de) 0 |
218 | # define D_INO(de) 0 |
142 | #endif |
219 | #endif |
143 | #ifndef D_NAMLEN |
220 | #ifndef D_NAMLEN |
144 | # define D_NAMLEN(de) strlen ((de)->d_name) |
221 | # define D_NAMLEN(entp) strlen (D_NAME (entp)) |
145 | #endif |
222 | #endif |
146 | |
223 | |
147 | /* used for struct dirent, AIX doesn't provide it */ |
224 | /* used for struct dirent, AIX doesn't provide it */ |
148 | #ifndef NAME_MAX |
225 | #ifndef NAME_MAX |
149 | # define NAME_MAX 4096 |
226 | # define NAME_MAX 4096 |
… | |
… | |
183 | #define ETP_WORKER_CLEAR(req) \ |
260 | #define ETP_WORKER_CLEAR(req) \ |
184 | if (wrk->dbuf) \ |
261 | if (wrk->dbuf) \ |
185 | { \ |
262 | { \ |
186 | free (wrk->dbuf); \ |
263 | free (wrk->dbuf); \ |
187 | wrk->dbuf = 0; \ |
264 | wrk->dbuf = 0; \ |
188 | } \ |
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189 | \ |
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190 | if (wrk->dirp) \ |
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191 | { \ |
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192 | closedir (wrk->dirp); \ |
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193 | wrk->dirp = 0; \ |
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194 | } |
265 | } |
195 | |
266 | |
196 | #define ETP_WORKER_COMMON \ |
267 | #define ETP_WORKER_COMMON \ |
197 | void *dbuf; \ |
268 | void *dbuf; |
198 | DIR *dirp; |
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199 | |
269 | |
200 | /*****************************************************************************/ |
270 | /*****************************************************************************/ |
201 | |
271 | |
202 | #define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1) |
272 | #define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1) |
203 | |
273 | |
… | |
… | |
232 | /* |
302 | /* |
233 | * make our pread/pwrite emulation safe against themselves, but not against |
303 | * make our pread/pwrite emulation safe against themselves, but not against |
234 | * normal read/write by using a mutex. slows down execution a lot, |
304 | * normal read/write by using a mutex. slows down execution a lot, |
235 | * but that's your problem, not mine. |
305 | * but that's your problem, not mine. |
236 | */ |
306 | */ |
237 | static xmutex_t preadwritelock = X_MUTEX_INIT; |
307 | static xmutex_t preadwritelock; |
238 | #endif |
308 | #endif |
239 | |
309 | |
240 | typedef struct etp_worker |
310 | typedef struct etp_worker |
241 | { |
311 | { |
242 | /* locked by wrklock */ |
312 | /* locked by wrklock */ |
… | |
… | |
248 | ETP_REQ *req; /* currently processed request */ |
318 | ETP_REQ *req; /* currently processed request */ |
249 | |
319 | |
250 | ETP_WORKER_COMMON |
320 | ETP_WORKER_COMMON |
251 | } etp_worker; |
321 | } etp_worker; |
252 | |
322 | |
253 | static etp_worker wrk_first = { &wrk_first, &wrk_first, 0 }; /* NOT etp */ |
323 | static etp_worker wrk_first; /* NOT etp */ |
254 | |
324 | |
255 | #define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock) |
325 | #define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock) |
256 | #define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock) |
326 | #define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock) |
257 | |
327 | |
258 | /* worker threads management */ |
328 | /* worker threads management */ |
… | |
… | |
329 | } etp_reqq; |
399 | } etp_reqq; |
330 | |
400 | |
331 | static etp_reqq req_queue; |
401 | static etp_reqq req_queue; |
332 | static etp_reqq res_queue; |
402 | static etp_reqq res_queue; |
333 | |
403 | |
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404 | static void ecb_noinline ecb_cold |
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405 | reqq_init (etp_reqq *q) |
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406 | { |
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407 | int pri; |
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408 | |
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409 | for (pri = 0; pri < ETP_NUM_PRI; ++pri) |
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410 | q->qs[pri] = q->qe[pri] = 0; |
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411 | |
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412 | q->size = 0; |
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413 | } |
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414 | |
334 | static int ecb_noinline |
415 | static int ecb_noinline |
335 | reqq_push (etp_reqq *q, ETP_REQ *req) |
416 | reqq_push (etp_reqq *q, ETP_REQ *req) |
336 | { |
417 | { |
337 | int pri = req->pri; |
418 | int pri = req->pri; |
338 | req->next = 0; |
419 | req->next = 0; |
… | |
… | |
372 | } |
453 | } |
373 | |
454 | |
374 | abort (); |
455 | abort (); |
375 | } |
456 | } |
376 | |
457 | |
377 | static void ecb_cold |
458 | static int ecb_cold |
378 | etp_thread_init (void) |
459 | etp_init (void (*want_poll)(void), void (*done_poll)(void)) |
379 | { |
460 | { |
380 | X_MUTEX_CREATE (wrklock); |
461 | X_MUTEX_CREATE (wrklock); |
381 | X_MUTEX_CREATE (reslock); |
462 | X_MUTEX_CREATE (reslock); |
382 | X_MUTEX_CREATE (reqlock); |
463 | X_MUTEX_CREATE (reqlock); |
383 | X_COND_CREATE (reqwait); |
464 | X_COND_CREATE (reqwait); |
384 | } |
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385 | |
465 | |
386 | static void ecb_cold |
466 | reqq_init (&req_queue); |
387 | etp_atfork_prepare (void) |
467 | reqq_init (&res_queue); |
388 | { |
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389 | X_LOCK (wrklock); |
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390 | X_LOCK (reqlock); |
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391 | X_LOCK (reslock); |
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392 | #if !HAVE_PREADWRITE |
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393 | X_LOCK (preadwritelock); |
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394 | #endif |
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395 | } |
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396 | |
468 | |
397 | static void ecb_cold |
469 | wrk_first.next = |
398 | etp_atfork_parent (void) |
470 | wrk_first.prev = &wrk_first; |
399 | { |
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400 | #if !HAVE_PREADWRITE |
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401 | X_UNLOCK (preadwritelock); |
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402 | #endif |
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403 | X_UNLOCK (reslock); |
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404 | X_UNLOCK (reqlock); |
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405 | X_UNLOCK (wrklock); |
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406 | } |
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407 | |
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408 | static void ecb_cold |
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409 | etp_atfork_child (void) |
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410 | { |
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411 | ETP_REQ *prv; |
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412 | |
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413 | while ((prv = reqq_shift (&req_queue))) |
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414 | ETP_DESTROY (prv); |
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415 | |
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416 | while ((prv = reqq_shift (&res_queue))) |
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417 | ETP_DESTROY (prv); |
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418 | |
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419 | while (wrk_first.next != &wrk_first) |
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420 | { |
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421 | etp_worker *wrk = wrk_first.next; |
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422 | |
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423 | if (wrk->req) |
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424 | ETP_DESTROY (wrk->req); |
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425 | |
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426 | etp_worker_clear (wrk); |
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427 | etp_worker_free (wrk); |
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428 | } |
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429 | |
471 | |
430 | started = 0; |
472 | started = 0; |
431 | idle = 0; |
473 | idle = 0; |
432 | nreqs = 0; |
474 | nreqs = 0; |
433 | nready = 0; |
475 | nready = 0; |
434 | npending = 0; |
476 | npending = 0; |
435 | |
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436 | etp_thread_init (); |
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437 | } |
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438 | |
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439 | static void ecb_cold |
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440 | etp_once_init (void) |
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441 | { |
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442 | etp_thread_init (); |
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443 | X_THREAD_ATFORK (etp_atfork_prepare, etp_atfork_parent, etp_atfork_child); |
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444 | } |
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445 | |
|
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446 | static int ecb_cold |
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447 | etp_init (void (*want_poll)(void), void (*done_poll)(void)) |
|
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448 | { |
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449 | static pthread_once_t doinit = PTHREAD_ONCE_INIT; |
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|
450 | |
|
|
451 | pthread_once (&doinit, etp_once_init); |
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452 | |
477 | |
453 | want_poll_cb = want_poll; |
478 | want_poll_cb = want_poll; |
454 | done_poll_cb = done_poll; |
479 | done_poll_cb = done_poll; |
455 | |
480 | |
456 | return 0; |
481 | return 0; |
… | |
… | |
583 | } |
608 | } |
584 | |
609 | |
585 | static void |
610 | static void |
586 | etp_cancel (ETP_REQ *req) |
611 | etp_cancel (ETP_REQ *req) |
587 | { |
612 | { |
588 | X_LOCK (wrklock); |
613 | req->cancelled = 1; |
589 | req->flags |= EIO_FLAG_CANCELLED; |
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590 | X_UNLOCK (wrklock); |
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591 | |
614 | |
592 | eio_grp_cancel (req); |
615 | eio_grp_cancel (req); |
593 | } |
616 | } |
594 | |
617 | |
595 | static void |
618 | static void |
… | |
… | |
711 | return eio_finish (grp); |
734 | return eio_finish (grp); |
712 | else |
735 | else |
713 | return 0; |
736 | return 0; |
714 | } |
737 | } |
715 | |
738 | |
716 | void |
739 | static void |
717 | eio_destroy (eio_req *req) |
740 | eio_destroy (eio_req *req) |
718 | { |
741 | { |
719 | if ((req)->flags & EIO_FLAG_PTR1_FREE) free (req->ptr1); |
742 | if ((req)->flags & EIO_FLAG_PTR1_FREE) free (req->ptr1); |
720 | if ((req)->flags & EIO_FLAG_PTR2_FREE) free (req->ptr2); |
743 | if ((req)->flags & EIO_FLAG_PTR2_FREE) free (req->ptr2); |
721 | |
744 | |
… | |
… | |
739 | if (grp->grp_first == req) |
762 | if (grp->grp_first == req) |
740 | grp->grp_first = req->grp_next; |
763 | grp->grp_first = req->grp_next; |
741 | |
764 | |
742 | res2 = grp_dec (grp); |
765 | res2 = grp_dec (grp); |
743 | |
766 | |
744 | if (!res && res2) |
767 | if (!res) |
745 | res = res2; |
768 | res = res2; |
746 | } |
769 | } |
747 | |
770 | |
748 | eio_destroy (req); |
771 | eio_destroy (req); |
749 | |
772 | |
… | |
… | |
841 | # undef pread |
864 | # undef pread |
842 | # undef pwrite |
865 | # undef pwrite |
843 | # define pread eio__pread |
866 | # define pread eio__pread |
844 | # define pwrite eio__pwrite |
867 | # define pwrite eio__pwrite |
845 | |
868 | |
846 | static ssize_t |
869 | static eio_ssize_t |
847 | eio__pread (int fd, void *buf, size_t count, off_t offset) |
870 | eio__pread (int fd, void *buf, size_t count, off_t offset) |
848 | { |
871 | { |
849 | ssize_t res; |
872 | eio_ssize_t res; |
850 | off_t ooffset; |
873 | off_t ooffset; |
851 | |
874 | |
852 | X_LOCK (preadwritelock); |
875 | X_LOCK (preadwritelock); |
853 | ooffset = lseek (fd, 0, SEEK_CUR); |
876 | ooffset = lseek (fd, 0, SEEK_CUR); |
854 | lseek (fd, offset, SEEK_SET); |
877 | lseek (fd, offset, SEEK_SET); |
… | |
… | |
857 | X_UNLOCK (preadwritelock); |
880 | X_UNLOCK (preadwritelock); |
858 | |
881 | |
859 | return res; |
882 | return res; |
860 | } |
883 | } |
861 | |
884 | |
862 | static ssize_t |
885 | static eio_ssize_t |
863 | eio__pwrite (int fd, void *buf, size_t count, off_t offset) |
886 | eio__pwrite (int fd, void *buf, size_t count, off_t offset) |
864 | { |
887 | { |
865 | ssize_t res; |
888 | eio_ssize_t res; |
866 | off_t ooffset; |
889 | off_t ooffset; |
867 | |
890 | |
868 | X_LOCK (preadwritelock); |
891 | X_LOCK (preadwritelock); |
869 | ooffset = lseek (fd, 0, SEEK_CUR); |
892 | ooffset = lseek (fd, 0, SEEK_CUR); |
870 | lseek (fd, offset, SEEK_SET); |
893 | lseek (fd, offset, SEEK_SET); |
… | |
… | |
944 | /* even though we could play tricks with the flags, it's better to always |
967 | /* even though we could play tricks with the flags, it's better to always |
945 | * call fdatasync, as that matches the expectation of its users best */ |
968 | * call fdatasync, as that matches the expectation of its users best */ |
946 | return fdatasync (fd); |
969 | return fdatasync (fd); |
947 | } |
970 | } |
948 | |
971 | |
|
|
972 | static int |
|
|
973 | eio__fallocate (int fd, int mode, off_t offset, size_t len) |
|
|
974 | { |
|
|
975 | #if HAVE_FALLOCATE |
|
|
976 | return fallocate (fd, mode, offset, len); |
|
|
977 | #else |
|
|
978 | errno = ENOSYS; |
|
|
979 | return -1; |
|
|
980 | #endif |
|
|
981 | } |
|
|
982 | |
949 | #if !HAVE_READAHEAD |
983 | #if !HAVE_READAHEAD |
950 | # undef readahead |
984 | # undef readahead |
951 | # define readahead(fd,offset,count) eio__readahead (fd, offset, count, self) |
985 | # define readahead(fd,offset,count) eio__readahead (fd, offset, count, self) |
952 | |
986 | |
953 | static ssize_t |
987 | static eio_ssize_t |
954 | eio__readahead (int fd, off_t offset, size_t count, etp_worker *self) |
988 | eio__readahead (int fd, off_t offset, size_t count, etp_worker *self) |
955 | { |
989 | { |
956 | size_t todo = count; |
990 | size_t todo = count; |
957 | dBUF; |
991 | dBUF; |
958 | |
992 | |
… | |
… | |
970 | } |
1004 | } |
971 | |
1005 | |
972 | #endif |
1006 | #endif |
973 | |
1007 | |
974 | /* sendfile always needs emulation */ |
1008 | /* sendfile always needs emulation */ |
975 | static ssize_t |
1009 | static eio_ssize_t |
976 | eio__sendfile (int ofd, int ifd, off_t offset, size_t count, etp_worker *self) |
1010 | eio__sendfile (int ofd, int ifd, off_t offset, size_t count, etp_worker *self) |
977 | { |
1011 | { |
978 | ssize_t written = 0; |
1012 | eio_ssize_t written = 0; |
979 | ssize_t res; |
1013 | eio_ssize_t res; |
980 | |
1014 | |
981 | if (!count) |
1015 | if (!count) |
982 | return 0; |
1016 | return 0; |
983 | |
1017 | |
984 | for (;;) |
1018 | for (;;) |
985 | { |
1019 | { |
|
|
1020 | #ifdef __APPLE__ |
|
|
1021 | # undef HAVE_SENDFILE /* broken, as everything on os x */ |
|
|
1022 | #endif |
986 | #if HAVE_SENDFILE |
1023 | #if HAVE_SENDFILE |
987 | # if __linux |
1024 | # if __linux |
988 | off_t soffset = offset; |
1025 | off_t soffset = offset; |
989 | res = sendfile (ofd, ifd, &soffset, count); |
1026 | res = sendfile (ofd, ifd, &soffset, count); |
990 | |
1027 | |
… | |
… | |
1006 | |
1043 | |
1007 | /* according to source inspection, this is correct, and useful behaviour */ |
1044 | /* according to source inspection, this is correct, and useful behaviour */ |
1008 | if (sbytes) |
1045 | if (sbytes) |
1009 | res = sbytes; |
1046 | res = sbytes; |
1010 | |
1047 | |
1011 | # elif defined (__APPLE__) && 0 /* broken, as everything on os x */ |
1048 | # elif defined (__APPLE__) |
1012 | off_t sbytes = count; |
1049 | off_t sbytes = count; |
1013 | res = sendfile (ifd, ofd, offset, &sbytes, 0, 0); |
1050 | res = sendfile (ifd, ofd, offset, &sbytes, 0, 0); |
1014 | |
1051 | |
1015 | /* according to the manpage, sbytes is always valid */ |
1052 | /* according to the manpage, sbytes is always valid */ |
1016 | if (sbytes) |
1053 | if (sbytes) |
… | |
… | |
1033 | if (res < 0 && sbytes) |
1070 | if (res < 0 && sbytes) |
1034 | res = sbytes; |
1071 | res = sbytes; |
1035 | |
1072 | |
1036 | # endif |
1073 | # endif |
1037 | |
1074 | |
1038 | #elif defined (_WIN32) |
1075 | #elif defined (_WIN32) && 0 |
1039 | /* does not work, just for documentation of what would need to be done */ |
1076 | /* does not work, just for documentation of what would need to be done */ |
1040 | /* actually, cannot be done like this, as TransmitFile changes the file offset, */ |
1077 | /* actually, cannot be done like this, as TransmitFile changes the file offset, */ |
1041 | /* libeio guarantees that the file offset does not change, and windows */ |
1078 | /* libeio guarantees that the file offset does not change, and windows */ |
1042 | /* has no way to get an independent handle to the same file description */ |
1079 | /* has no way to get an independent handle to the same file description */ |
1043 | HANDLE h = TO_SOCKET (ifd); |
1080 | HANDLE h = TO_SOCKET (ifd); |
… | |
… | |
1076 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
1113 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
1077 | /* BSDs */ |
1114 | /* BSDs */ |
1078 | #ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */ |
1115 | #ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */ |
1079 | || errno == ENOTSUP |
1116 | || errno == ENOTSUP |
1080 | #endif |
1117 | #endif |
|
|
1118 | #ifdef EOPNOTSUPP /* windows */ |
1081 | || errno == EOPNOTSUPP /* BSDs */ |
1119 | || errno == EOPNOTSUPP /* BSDs */ |
|
|
1120 | #endif |
1082 | #if __solaris |
1121 | #if __solaris |
1083 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
1122 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
1084 | #endif |
1123 | #endif |
1085 | ) |
1124 | ) |
1086 | ) |
1125 | ) |
… | |
… | |
1090 | |
1129 | |
1091 | res = 0; |
1130 | res = 0; |
1092 | |
1131 | |
1093 | while (count) |
1132 | while (count) |
1094 | { |
1133 | { |
1095 | ssize_t cnt; |
1134 | eio_ssize_t cnt; |
1096 | |
1135 | |
1097 | cnt = pread (ifd, eio_buf, count > EIO_BUFSIZE ? EIO_BUFSIZE : count, offset); |
1136 | cnt = pread (ifd, eio_buf, count > EIO_BUFSIZE ? EIO_BUFSIZE : count, offset); |
1098 | |
1137 | |
1099 | if (cnt <= 0) |
1138 | if (cnt <= 0) |
1100 | { |
1139 | { |
… | |
… | |
1148 | /* round up length */ |
1187 | /* round up length */ |
1149 | *length = (*length + mask) & ~mask; |
1188 | *length = (*length + mask) & ~mask; |
1150 | } |
1189 | } |
1151 | |
1190 | |
1152 | #if !_POSIX_MEMLOCK |
1191 | #if !_POSIX_MEMLOCK |
1153 | # define eio__mlockall(a) ((errno = ENOSYS), -1) |
1192 | # define eio__mlockall(a) EIO_ENOSYS () |
1154 | #else |
1193 | #else |
1155 | |
1194 | |
1156 | static int |
1195 | static int |
1157 | eio__mlockall (int flags) |
1196 | eio__mlockall (int flags) |
1158 | { |
1197 | { |
… | |
… | |
1172 | return mlockall (flags); |
1211 | return mlockall (flags); |
1173 | } |
1212 | } |
1174 | #endif |
1213 | #endif |
1175 | |
1214 | |
1176 | #if !_POSIX_MEMLOCK_RANGE |
1215 | #if !_POSIX_MEMLOCK_RANGE |
1177 | # define eio__mlock(a,b) ((errno = ENOSYS), -1) |
1216 | # define eio__mlock(a,b) EIO_ENOSYS () |
1178 | #else |
1217 | #else |
1179 | |
1218 | |
1180 | static int |
1219 | static int |
1181 | eio__mlock (void *addr, size_t length) |
1220 | eio__mlock (void *addr, size_t length) |
1182 | { |
1221 | { |
… | |
… | |
1186 | } |
1225 | } |
1187 | |
1226 | |
1188 | #endif |
1227 | #endif |
1189 | |
1228 | |
1190 | #if !(_POSIX_MAPPED_FILES && _POSIX_SYNCHRONIZED_IO) |
1229 | #if !(_POSIX_MAPPED_FILES && _POSIX_SYNCHRONIZED_IO) |
1191 | # define eio__msync(a,b,c) ((errno = ENOSYS), -1) |
1230 | # define eio__msync(a,b,c) EIO_ENOSYS () |
1192 | #else |
1231 | #else |
1193 | |
1232 | |
1194 | static int |
1233 | static int |
1195 | eio__msync (void *mem, size_t len, int flags) |
1234 | eio__msync (void *mem, size_t len, int flags) |
1196 | { |
1235 | { |
… | |
… | |
1243 | { |
1282 | { |
1244 | char *rel = req->ptr1; |
1283 | char *rel = req->ptr1; |
1245 | char *res; |
1284 | char *res; |
1246 | char *tmp1, *tmp2; |
1285 | char *tmp1, *tmp2; |
1247 | #if SYMLOOP_MAX > 32 |
1286 | #if SYMLOOP_MAX > 32 |
1248 | int links = SYMLOOP_MAX; |
1287 | int symlinks = SYMLOOP_MAX; |
1249 | #else |
1288 | #else |
1250 | int links = 32; |
1289 | int symlinks = 32; |
1251 | #endif |
1290 | #endif |
1252 | |
1291 | |
1253 | req->result = -1; |
1292 | req->result = -1; |
1254 | |
1293 | |
1255 | errno = EINVAL; |
1294 | errno = EINVAL; |
… | |
… | |
1274 | |
1313 | |
1275 | res = req->ptr2; |
1314 | res = req->ptr2; |
1276 | tmp1 = res + PATH_MAX; |
1315 | tmp1 = res + PATH_MAX; |
1277 | tmp2 = tmp1 + PATH_MAX; |
1316 | tmp2 = tmp1 + PATH_MAX; |
1278 | |
1317 | |
|
|
1318 | #if 0 /* disabled, the musl way to do things is just too racy */ |
|
|
1319 | #if __linux && defined(O_NONBLOCK) && defined(O_NOATIME) |
|
|
1320 | /* on linux we may be able to ask the kernel */ |
|
|
1321 | { |
|
|
1322 | int fd = open (rel, O_RDONLY | O_NONBLOCK | O_NOCTTY | O_NOATIME); |
|
|
1323 | |
|
|
1324 | if (fd >= 0) |
|
|
1325 | { |
|
|
1326 | sprintf (tmp1, "/proc/self/fd/%d", fd); |
|
|
1327 | req->result = readlink (tmp1, res, PATH_MAX); |
|
|
1328 | close (fd); |
|
|
1329 | |
|
|
1330 | /* here we should probably stat the open file and the disk file, to make sure they still match */ |
|
|
1331 | |
|
|
1332 | if (req->result > 0) |
|
|
1333 | goto done; |
|
|
1334 | } |
|
|
1335 | else if (errno == ELOOP || errno == ENAMETOOLONG || errno == ENOENT || errno == ENOTDIR || errno == EIO) |
|
|
1336 | return; |
|
|
1337 | } |
|
|
1338 | #endif |
|
|
1339 | #endif |
|
|
1340 | |
1279 | if (*rel != '/') |
1341 | if (*rel != '/') |
1280 | { |
1342 | { |
1281 | if (!getcwd (res, PATH_MAX)) |
1343 | if (!getcwd (res, PATH_MAX)) |
1282 | return; |
1344 | return; |
1283 | |
1345 | |
… | |
… | |
1285 | res += strlen (res); |
1347 | res += strlen (res); |
1286 | } |
1348 | } |
1287 | |
1349 | |
1288 | while (*rel) |
1350 | while (*rel) |
1289 | { |
1351 | { |
1290 | ssize_t len, linklen; |
1352 | eio_ssize_t len, linklen; |
1291 | char *beg = rel; |
1353 | char *beg = rel; |
1292 | |
1354 | |
1293 | while (*rel && *rel != '/') |
1355 | while (*rel && *rel != '/') |
1294 | ++rel; |
1356 | ++rel; |
1295 | |
1357 | |
… | |
… | |
1347 | |
1409 | |
1348 | errno = ENAMETOOLONG; |
1410 | errno = ENAMETOOLONG; |
1349 | if (linklen + 1 + rellen >= PATH_MAX) |
1411 | if (linklen + 1 + rellen >= PATH_MAX) |
1350 | return; |
1412 | return; |
1351 | |
1413 | |
|
|
1414 | errno = ELOOP; |
|
|
1415 | if (!--symlinks) |
|
|
1416 | return; |
|
|
1417 | |
1352 | if (*tmp1 == '/') |
1418 | if (*tmp1 == '/') |
1353 | res = req->ptr2; /* symlink resolves to an absolute path */ |
1419 | res = req->ptr2; /* symlink resolves to an absolute path */ |
1354 | |
1420 | |
1355 | /* we need to be careful, as rel might point into tmp2 already */ |
1421 | /* we need to be careful, as rel might point into tmp2 already */ |
1356 | memmove (tmp2 + linklen + 1, rel, rellen + 1); |
1422 | memmove (tmp2 + linklen + 1, rel, rellen + 1); |
… | |
… | |
1364 | /* special case for the lone root path */ |
1430 | /* special case for the lone root path */ |
1365 | if (res == req->ptr2) |
1431 | if (res == req->ptr2) |
1366 | *res++ = '/'; |
1432 | *res++ = '/'; |
1367 | |
1433 | |
1368 | req->result = res - (char *)req->ptr2; |
1434 | req->result = res - (char *)req->ptr2; |
|
|
1435 | |
|
|
1436 | done: |
1369 | req->ptr2 = realloc (req->ptr2, req->result); /* trade time for space savings */ |
1437 | req->ptr2 = realloc (req->ptr2, req->result); /* trade time for space savings */ |
1370 | } |
1438 | } |
1371 | |
1439 | |
1372 | static signed char |
1440 | static signed char |
1373 | eio_dent_cmp (const eio_dirent *a, const eio_dirent *b) |
1441 | eio_dent_cmp (const eio_dirent *a, const eio_dirent *b) |
… | |
… | |
1382 | |
1450 | |
1383 | #define EIO_SORT_CUTOFF 30 /* quite high, but performs well on many filesystems */ |
1451 | #define EIO_SORT_CUTOFF 30 /* quite high, but performs well on many filesystems */ |
1384 | #define EIO_SORT_FAST 60 /* when to only use insertion sort */ |
1452 | #define EIO_SORT_FAST 60 /* when to only use insertion sort */ |
1385 | |
1453 | |
1386 | static void |
1454 | static void |
1387 | eio_dent_radix_sort (eio_dirent *dents, int size, signed char score_bits, ino_t inode_bits) |
1455 | eio_dent_radix_sort (eio_dirent *dents, int size, signed char score_bits, eio_ino_t inode_bits) |
1388 | { |
1456 | { |
1389 | unsigned char bits [9 + sizeof (ino_t) * 8]; |
1457 | unsigned char bits [9 + sizeof (eio_ino_t) * 8]; |
1390 | unsigned char *bit = bits; |
1458 | unsigned char *bit = bits; |
1391 | |
1459 | |
1392 | assert (CHAR_BIT == 8); |
1460 | assert (CHAR_BIT == 8); |
1393 | assert (sizeof (eio_dirent) * 8 < 256); |
1461 | assert (sizeof (eio_dirent) * 8 < 256); |
1394 | assert (offsetof (eio_dirent, inode)); /* we use bit #0 as sentinel */ |
1462 | assert (offsetof (eio_dirent, inode)); /* we use bit #0 as sentinel */ |
… | |
… | |
1396 | |
1464 | |
1397 | if (size <= EIO_SORT_FAST) |
1465 | if (size <= EIO_SORT_FAST) |
1398 | return; |
1466 | return; |
1399 | |
1467 | |
1400 | /* first prepare an array of bits to test in our radix sort */ |
1468 | /* first prepare an array of bits to test in our radix sort */ |
1401 | /* try to take endianness into account, as well as differences in ino_t sizes */ |
1469 | /* try to take endianness into account, as well as differences in eio_ino_t sizes */ |
1402 | /* inode_bits must contain all inodes ORed together */ |
1470 | /* inode_bits must contain all inodes ORed together */ |
1403 | /* which is used to skip bits that are 0 everywhere, which is very common */ |
1471 | /* which is used to skip bits that are 0 everywhere, which is very common */ |
1404 | { |
1472 | { |
1405 | ino_t endianness; |
1473 | eio_ino_t endianness; |
1406 | int i, j; |
1474 | int i, j; |
1407 | |
1475 | |
1408 | /* we store the byte offset of byte n into byte n of "endianness" */ |
1476 | /* we store the byte offset of byte n into byte n of "endianness" */ |
1409 | for (i = 0; i < sizeof (ino_t); ++i) |
1477 | for (i = 0; i < sizeof (eio_ino_t); ++i) |
1410 | ((unsigned char *)&endianness)[i] = i; |
1478 | ((unsigned char *)&endianness)[i] = i; |
1411 | |
1479 | |
1412 | *bit++ = 0; |
1480 | *bit++ = 0; |
1413 | |
1481 | |
1414 | for (i = 0; i < sizeof (ino_t); ++i) |
1482 | for (i = 0; i < sizeof (eio_ino_t); ++i) |
1415 | { |
1483 | { |
1416 | /* shifting off the byte offsets out of "endianness" */ |
1484 | /* shifting off the byte offsets out of "endianness" */ |
1417 | int offs = (offsetof (eio_dirent, inode) + (endianness & 0xff)) * 8; |
1485 | int offs = (offsetof (eio_dirent, inode) + (endianness & 0xff)) * 8; |
1418 | endianness >>= 8; |
1486 | endianness >>= 8; |
1419 | |
1487 | |
1420 | for (j = 0; j < 8; ++j) |
1488 | for (j = 0; j < 8; ++j) |
1421 | if (inode_bits & (((ino_t)1) << (i * 8 + j))) |
1489 | if (inode_bits & (((eio_ino_t)1) << (i * 8 + j))) |
1422 | *bit++ = offs + j; |
1490 | *bit++ = offs + j; |
1423 | } |
1491 | } |
1424 | |
1492 | |
1425 | for (j = 0; j < 8; ++j) |
1493 | for (j = 0; j < 8; ++j) |
1426 | if (score_bits & (1 << j)) |
1494 | if (score_bits & (1 << j)) |
1427 | *bit++ = offsetof (eio_dirent, score) * 8 + j; |
1495 | *bit++ = offsetof (eio_dirent, score) * 8 + j; |
1428 | } |
1496 | } |
1429 | |
1497 | |
1430 | /* now actually do the sorting (a variant of MSD radix sort) */ |
1498 | /* now actually do the sorting (a variant of MSD radix sort) */ |
1431 | { |
1499 | { |
1432 | eio_dirent *base_stk [9 + sizeof (ino_t) * 8], *base; |
1500 | eio_dirent *base_stk [9 + sizeof (eio_ino_t) * 8], *base; |
1433 | eio_dirent *end_stk [9 + sizeof (ino_t) * 8], *end; |
1501 | eio_dirent *end_stk [9 + sizeof (eio_ino_t) * 8], *end; |
1434 | unsigned char *bit_stk [9 + sizeof (ino_t) * 8]; |
1502 | unsigned char *bit_stk [9 + sizeof (eio_ino_t) * 8]; |
1435 | int stk_idx = 0; |
1503 | int stk_idx = 0; |
1436 | |
1504 | |
1437 | base_stk [stk_idx] = dents; |
1505 | base_stk [stk_idx] = dents; |
1438 | end_stk [stk_idx] = dents + size; |
1506 | end_stk [stk_idx] = dents + size; |
1439 | bit_stk [stk_idx] = bit - 1; |
1507 | bit_stk [stk_idx] = bit - 1; |
… | |
… | |
1518 | } |
1586 | } |
1519 | } |
1587 | } |
1520 | } |
1588 | } |
1521 | |
1589 | |
1522 | static void |
1590 | static void |
1523 | eio_dent_sort (eio_dirent *dents, int size, signed char score_bits, ino_t inode_bits) |
1591 | eio_dent_sort (eio_dirent *dents, int size, signed char score_bits, eio_ino_t inode_bits) |
1524 | { |
1592 | { |
1525 | if (size <= 1) |
1593 | if (size <= 1) |
1526 | return; /* our insertion sort relies on size > 0 */ |
1594 | return; /* our insertion sort relies on size > 0 */ |
1527 | |
1595 | |
1528 | /* first we use a radix sort, but only for dirs >= EIO_SORT_FAST */ |
1596 | /* first we use a radix sort, but only for dirs >= EIO_SORT_FAST */ |
… | |
… | |
1536 | |
1604 | |
1537 | /* read a full directory */ |
1605 | /* read a full directory */ |
1538 | static void |
1606 | static void |
1539 | eio__scandir (eio_req *req, etp_worker *self) |
1607 | eio__scandir (eio_req *req, etp_worker *self) |
1540 | { |
1608 | { |
1541 | DIR *dirp; |
|
|
1542 | EIO_STRUCT_DIRENT *entp; |
|
|
1543 | char *name, *names; |
1609 | char *name, *names; |
1544 | int namesalloc = 4096; |
1610 | int namesalloc = 4096 - sizeof (void *) * 4; |
1545 | int namesoffs = 0; |
1611 | int namesoffs = 0; |
1546 | int flags = req->int1; |
1612 | int flags = req->int1; |
1547 | eio_dirent *dents = 0; |
1613 | eio_dirent *dents = 0; |
1548 | int dentalloc = 128; |
1614 | int dentalloc = 128; |
1549 | int dentoffs = 0; |
1615 | int dentoffs = 0; |
1550 | ino_t inode_bits = 0; |
1616 | eio_ino_t inode_bits = 0; |
|
|
1617 | #ifdef _WIN32 |
|
|
1618 | HANDLE dirp; |
|
|
1619 | WIN32_FIND_DATA entp; |
|
|
1620 | #else |
|
|
1621 | DIR *dirp; |
|
|
1622 | EIO_STRUCT_DIRENT *entp; |
|
|
1623 | #endif |
1551 | |
1624 | |
1552 | req->result = -1; |
1625 | req->result = -1; |
1553 | |
1626 | |
1554 | if (!(flags & EIO_READDIR_DENTS)) |
1627 | if (!(flags & EIO_READDIR_DENTS)) |
1555 | flags &= ~(EIO_READDIR_DIRS_FIRST | EIO_READDIR_STAT_ORDER); |
1628 | flags &= ~(EIO_READDIR_DIRS_FIRST | EIO_READDIR_STAT_ORDER); |
1556 | |
1629 | |
1557 | X_LOCK (wrklock); |
1630 | #ifdef _WIN32 |
1558 | /* the corresponding closedir is in ETP_WORKER_CLEAR */ |
1631 | { |
|
|
1632 | int len = strlen ((const char *)req->ptr1); |
|
|
1633 | char *path = malloc (MAX_PATH); |
|
|
1634 | const char *fmt; |
|
|
1635 | |
|
|
1636 | if (!len) |
|
|
1637 | fmt = "./*"; |
|
|
1638 | else if (((const char *)req->ptr1)[len - 1] == '/' || ((const char *)req->ptr1)[len - 1] == '\\') |
|
|
1639 | fmt = "%s*"; |
|
|
1640 | else |
|
|
1641 | fmt = "%s/*"; |
|
|
1642 | |
|
|
1643 | _snprintf (path, MAX_PATH, fmt, (const char *)req->ptr1); |
|
|
1644 | dirp = FindFirstFile (path, &entp); |
|
|
1645 | free (path); |
|
|
1646 | |
|
|
1647 | if (dirp == INVALID_HANDLE_VALUE) |
|
|
1648 | { |
|
|
1649 | dirp = 0; |
|
|
1650 | |
|
|
1651 | switch (GetLastError ()) |
|
|
1652 | { |
|
|
1653 | case ERROR_FILE_NOT_FOUND: |
|
|
1654 | req->result = 0; |
|
|
1655 | break; |
|
|
1656 | |
|
|
1657 | case ERROR_INVALID_NAME: |
|
|
1658 | case ERROR_PATH_NOT_FOUND: |
|
|
1659 | case ERROR_NO_MORE_FILES: |
|
|
1660 | errno = ENOENT; |
|
|
1661 | break; |
|
|
1662 | |
|
|
1663 | case ERROR_NOT_ENOUGH_MEMORY: |
|
|
1664 | errno = ENOMEM; |
|
|
1665 | break; |
|
|
1666 | |
|
|
1667 | default: |
|
|
1668 | errno = EINVAL; |
|
|
1669 | break; |
|
|
1670 | } |
|
|
1671 | } |
|
|
1672 | } |
|
|
1673 | #else |
1559 | self->dirp = dirp = opendir (req->ptr1); |
1674 | dirp = opendir (req->ptr1); |
|
|
1675 | #endif |
1560 | |
1676 | |
1561 | if (req->flags & EIO_FLAG_PTR1_FREE) |
1677 | if (req->flags & EIO_FLAG_PTR1_FREE) |
1562 | free (req->ptr1); |
1678 | free (req->ptr1); |
1563 | |
1679 | |
1564 | req->flags |= EIO_FLAG_PTR1_FREE | EIO_FLAG_PTR2_FREE; |
1680 | req->flags |= EIO_FLAG_PTR1_FREE | EIO_FLAG_PTR2_FREE; |
1565 | req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0; |
1681 | req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0; |
1566 | req->ptr2 = names = malloc (namesalloc); |
1682 | req->ptr2 = names = malloc (namesalloc); |
1567 | X_UNLOCK (wrklock); |
|
|
1568 | |
1683 | |
1569 | if (dirp && names && (!flags || dents)) |
1684 | if (dirp && names && (!flags || dents)) |
1570 | for (;;) |
1685 | for (;;) |
1571 | { |
1686 | { |
|
|
1687 | int done; |
|
|
1688 | |
|
|
1689 | #ifdef _WIN32 |
|
|
1690 | done = !dirp; |
|
|
1691 | #else |
1572 | errno = 0; |
1692 | errno = 0; |
1573 | entp = readdir (dirp); |
1693 | entp = readdir (dirp); |
|
|
1694 | done = !entp; |
|
|
1695 | #endif |
1574 | |
1696 | |
1575 | if (!entp) |
1697 | if (done) |
1576 | { |
1698 | { |
|
|
1699 | #ifndef _WIN32 |
|
|
1700 | int old_errno = errno; |
|
|
1701 | closedir (dirp); |
|
|
1702 | errno = old_errno; |
|
|
1703 | |
1577 | if (errno) |
1704 | if (errno) |
1578 | break; |
1705 | break; |
|
|
1706 | #endif |
1579 | |
1707 | |
1580 | /* sort etc. */ |
1708 | /* sort etc. */ |
1581 | req->int1 = flags; |
1709 | req->int1 = flags; |
1582 | req->result = dentoffs; |
1710 | req->result = dentoffs; |
1583 | |
1711 | |
… | |
… | |
1612 | |
1740 | |
1613 | break; |
1741 | break; |
1614 | } |
1742 | } |
1615 | |
1743 | |
1616 | /* now add the entry to our list(s) */ |
1744 | /* now add the entry to our list(s) */ |
1617 | name = entp->d_name; |
1745 | name = D_NAME (entp); |
1618 | |
1746 | |
1619 | /* skip . and .. entries */ |
1747 | /* skip . and .. entries */ |
1620 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
1748 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
1621 | { |
1749 | { |
1622 | int len = D_NAMLEN (entp) + 1; |
1750 | int len = D_NAMLEN (entp) + 1; |
1623 | |
1751 | |
1624 | while (ecb_expect_false (namesoffs + len > namesalloc)) |
1752 | while (ecb_expect_false (namesoffs + len > namesalloc)) |
1625 | { |
1753 | { |
1626 | namesalloc *= 2; |
1754 | namesalloc *= 2; |
1627 | X_LOCK (wrklock); |
|
|
1628 | req->ptr2 = names = realloc (names, namesalloc); |
1755 | req->ptr2 = names = realloc (names, namesalloc); |
1629 | X_UNLOCK (wrklock); |
|
|
1630 | |
1756 | |
1631 | if (!names) |
1757 | if (!names) |
1632 | break; |
1758 | break; |
1633 | } |
1759 | } |
1634 | |
1760 | |
… | |
… | |
1639 | struct eio_dirent *ent; |
1765 | struct eio_dirent *ent; |
1640 | |
1766 | |
1641 | if (ecb_expect_false (dentoffs == dentalloc)) |
1767 | if (ecb_expect_false (dentoffs == dentalloc)) |
1642 | { |
1768 | { |
1643 | dentalloc *= 2; |
1769 | dentalloc *= 2; |
1644 | X_LOCK (wrklock); |
|
|
1645 | req->ptr1 = dents = realloc (dents, dentalloc * sizeof (eio_dirent)); |
1770 | req->ptr1 = dents = realloc (dents, dentalloc * sizeof (eio_dirent)); |
1646 | X_UNLOCK (wrklock); |
|
|
1647 | |
1771 | |
1648 | if (!dents) |
1772 | if (!dents) |
1649 | break; |
1773 | break; |
1650 | } |
1774 | } |
1651 | |
1775 | |
… | |
… | |
1731 | if (EIO_CANCELLED (req)) |
1855 | if (EIO_CANCELLED (req)) |
1732 | { |
1856 | { |
1733 | errno = ECANCELED; |
1857 | errno = ECANCELED; |
1734 | break; |
1858 | break; |
1735 | } |
1859 | } |
|
|
1860 | |
|
|
1861 | #ifdef _WIN32 |
|
|
1862 | if (!FindNextFile (dirp, &entp)) |
|
|
1863 | { |
|
|
1864 | FindClose (dirp); |
|
|
1865 | dirp = 0; |
|
|
1866 | } |
|
|
1867 | #endif |
1736 | } |
1868 | } |
1737 | } |
1869 | } |
1738 | |
1870 | |
1739 | /*****************************************************************************/ |
1871 | /*****************************************************************************/ |
1740 | |
1872 | |
… | |
… | |
1757 | { |
1889 | { |
1758 | ETP_REQ *req; |
1890 | ETP_REQ *req; |
1759 | struct timespec ts; |
1891 | struct timespec ts; |
1760 | etp_worker *self = (etp_worker *)thr_arg; |
1892 | etp_worker *self = (etp_worker *)thr_arg; |
1761 | |
1893 | |
1762 | /* try to distribute timeouts somewhat randomly */ |
1894 | /* try to distribute timeouts somewhat evenly */ |
1763 | ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL); |
1895 | ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL); |
1764 | |
1896 | |
1765 | for (;;) |
1897 | for (;;) |
1766 | { |
1898 | { |
|
|
1899 | ts.tv_sec = 0; |
|
|
1900 | |
1767 | X_LOCK (reqlock); |
1901 | X_LOCK (reqlock); |
1768 | |
1902 | |
1769 | for (;;) |
1903 | for (;;) |
1770 | { |
1904 | { |
1771 | self->req = req = reqq_shift (&req_queue); |
1905 | self->req = req = reqq_shift (&req_queue); |
1772 | |
1906 | |
1773 | if (req) |
1907 | if (req) |
1774 | break; |
1908 | break; |
1775 | |
1909 | |
|
|
1910 | if (ts.tv_sec == 1) /* no request, but timeout detected, let's quit */ |
|
|
1911 | { |
|
|
1912 | X_UNLOCK (reqlock); |
|
|
1913 | X_LOCK (wrklock); |
|
|
1914 | --started; |
|
|
1915 | X_UNLOCK (wrklock); |
|
|
1916 | goto quit; |
|
|
1917 | } |
|
|
1918 | |
1776 | ++idle; |
1919 | ++idle; |
1777 | |
1920 | |
1778 | ts.tv_sec = time (0) + idle_timeout; |
1921 | if (idle <= max_idle) |
1779 | if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) == ETIMEDOUT) |
1922 | /* we are allowed to idle, so do so without any timeout */ |
|
|
1923 | X_COND_WAIT (reqwait, reqlock); |
|
|
1924 | else |
1780 | { |
1925 | { |
1781 | if (idle > max_idle) |
1926 | /* initialise timeout once */ |
1782 | { |
1927 | if (!ts.tv_sec) |
1783 | --idle; |
1928 | ts.tv_sec = time (0) + idle_timeout; |
1784 | X_UNLOCK (reqlock); |
|
|
1785 | X_LOCK (wrklock); |
|
|
1786 | --started; |
|
|
1787 | X_UNLOCK (wrklock); |
|
|
1788 | goto quit; |
|
|
1789 | } |
|
|
1790 | |
1929 | |
1791 | /* we are allowed to idle, so do so without any timeout */ |
|
|
1792 | X_COND_WAIT (reqwait, reqlock); |
1930 | if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) == ETIMEDOUT) |
|
|
1931 | ts.tv_sec = 1; /* assuming this is not a value computed above.,.. */ |
1793 | } |
1932 | } |
1794 | |
1933 | |
1795 | --idle; |
1934 | --idle; |
1796 | } |
1935 | } |
1797 | |
1936 | |
… | |
… | |
1800 | X_UNLOCK (reqlock); |
1939 | X_UNLOCK (reqlock); |
1801 | |
1940 | |
1802 | if (req->type < 0) |
1941 | if (req->type < 0) |
1803 | goto quit; |
1942 | goto quit; |
1804 | |
1943 | |
1805 | if (!EIO_CANCELLED (req)) |
|
|
1806 | ETP_EXECUTE (self, req); |
1944 | ETP_EXECUTE (self, req); |
1807 | |
1945 | |
1808 | X_LOCK (reslock); |
1946 | X_LOCK (reslock); |
1809 | |
1947 | |
1810 | ++npending; |
1948 | ++npending; |
1811 | |
1949 | |
… | |
… | |
1829 | /*****************************************************************************/ |
1967 | /*****************************************************************************/ |
1830 | |
1968 | |
1831 | int ecb_cold |
1969 | int ecb_cold |
1832 | eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
1970 | eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
1833 | { |
1971 | { |
|
|
1972 | #if !HAVE_PREADWRITE |
|
|
1973 | X_MUTEX_CREATE (preadwritelock); |
|
|
1974 | #endif |
|
|
1975 | |
1834 | return etp_init (want_poll, done_poll); |
1976 | return etp_init (want_poll, done_poll); |
1835 | } |
1977 | } |
1836 | |
1978 | |
1837 | ecb_inline void |
1979 | ecb_inline void |
1838 | eio_api_destroy (eio_req *req) |
1980 | eio_api_destroy (eio_req *req) |
… | |
… | |
1865 | } |
2007 | } |
1866 | |
2008 | |
1867 | static void |
2009 | static void |
1868 | eio_execute (etp_worker *self, eio_req *req) |
2010 | eio_execute (etp_worker *self, eio_req *req) |
1869 | { |
2011 | { |
|
|
2012 | if (ecb_expect_false (EIO_CANCELLED (req))) |
|
|
2013 | { |
|
|
2014 | req->result = -1; |
|
|
2015 | req->errorno = ECANCELED; |
|
|
2016 | return; |
|
|
2017 | } |
|
|
2018 | |
1870 | switch (req->type) |
2019 | switch (req->type) |
1871 | { |
2020 | { |
1872 | case EIO_READ: ALLOC (req->size); |
2021 | case EIO_READ: ALLOC (req->size); |
1873 | req->result = req->offs >= 0 |
2022 | req->result = req->offs >= 0 |
1874 | ? pread (req->int1, req->ptr2, req->size, req->offs) |
2023 | ? pread (req->int1, req->ptr2, req->size, req->offs) |
… | |
… | |
1921 | case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break; |
2070 | case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break; |
1922 | case EIO_MTOUCH: req->result = eio__mtouch (req); break; |
2071 | case EIO_MTOUCH: req->result = eio__mtouch (req); break; |
1923 | case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break; |
2072 | case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break; |
1924 | case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break; |
2073 | case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break; |
1925 | case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break; |
2074 | case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break; |
|
|
2075 | case EIO_FALLOCATE: req->result = eio__fallocate (req->int1, req->int2, req->offs, req->size); break; |
1926 | |
2076 | |
1927 | case EIO_READDIR: eio__scandir (req, self); break; |
2077 | case EIO_READDIR: eio__scandir (req, self); break; |
1928 | |
2078 | |
1929 | case EIO_BUSY: |
2079 | case EIO_BUSY: |
1930 | #ifdef _WIN32 |
2080 | #ifdef _WIN32 |
… | |
… | |
2030 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data) |
2180 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data) |
2031 | { |
2181 | { |
2032 | REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND; |
2182 | REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND; |
2033 | } |
2183 | } |
2034 | |
2184 | |
|
|
2185 | eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data) |
|
|
2186 | { |
|
|
2187 | REQ (EIO_FALLOCATE); req->int1 = fd; req->int2 = mode; req->offs = offset; req->size = len; SEND; |
|
|
2188 | } |
|
|
2189 | |
2035 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data) |
2190 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data) |
2036 | { |
2191 | { |
2037 | REQ (EIO_FDATASYNC); req->int1 = fd; SEND; |
2192 | REQ (EIO_FDATASYNC); req->int1 = fd; SEND; |
2038 | } |
2193 | } |
2039 | |
2194 | |
… | |
… | |
2080 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data) |
2235 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data) |
2081 | { |
2236 | { |
2082 | REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND; |
2237 | REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND; |
2083 | } |
2238 | } |
2084 | |
2239 | |
2085 | eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data) |
2240 | eio_req *eio_fchown (int fd, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data) |
2086 | { |
2241 | { |
2087 | REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
2242 | REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
2088 | } |
2243 | } |
2089 | |
2244 | |
2090 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data) |
2245 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data) |
… | |
… | |
2110 | eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data) |
2265 | eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data) |
2111 | { |
2266 | { |
2112 | REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND; |
2267 | REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND; |
2113 | } |
2268 | } |
2114 | |
2269 | |
2115 | eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data) |
2270 | eio_req *eio_chown (const char *path, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data) |
2116 | { |
2271 | { |
2117 | REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
2272 | REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
2118 | } |
2273 | } |
2119 | |
2274 | |
2120 | eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data) |
2275 | eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data) |
… | |
… | |
2267 | } |
2422 | } |
2268 | |
2423 | |
2269 | /*****************************************************************************/ |
2424 | /*****************************************************************************/ |
2270 | /* misc garbage */ |
2425 | /* misc garbage */ |
2271 | |
2426 | |
2272 | ssize_t |
2427 | eio_ssize_t |
2273 | eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count) |
2428 | eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count) |
2274 | { |
2429 | { |
2275 | etp_worker wrk; |
2430 | etp_worker wrk; |
2276 | ssize_t ret; |
2431 | eio_ssize_t ret; |
2277 | |
2432 | |
2278 | wrk.dbuf = 0; |
2433 | wrk.dbuf = 0; |
2279 | |
2434 | |
2280 | ret = eio__sendfile (ofd, ifd, offset, count, &wrk); |
2435 | ret = eio__sendfile (ofd, ifd, offset, count, &wrk); |
2281 | |
2436 | |