… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
|
|
40 | #ifndef _WIN32 |
|
|
41 | # include "config.h" |
|
|
42 | #endif |
|
|
43 | |
40 | #include "eio.h" |
44 | #include "eio.h" |
|
|
45 | #include "ecb.h" |
41 | |
46 | |
42 | #ifdef EIO_STACKSIZE |
47 | #ifdef EIO_STACKSIZE |
43 | # define XTHREAD_STACKSIZE EIO_STACKSIZE |
48 | # define X_STACKSIZE EIO_STACKSIZE |
44 | #endif |
49 | #endif |
45 | #include "xthread.h" |
50 | #include "xthread.h" |
46 | |
51 | |
47 | #include <errno.h> |
52 | #include <errno.h> |
48 | #include <stddef.h> |
53 | #include <stddef.h> |
49 | #include <stdlib.h> |
54 | #include <stdlib.h> |
50 | #include <string.h> |
55 | #include <string.h> |
51 | #include <errno.h> |
56 | #include <errno.h> |
52 | #include <sys/types.h> |
57 | #include <sys/types.h> |
53 | #include <sys/stat.h> |
58 | #include <sys/stat.h> |
54 | #include <sys/statvfs.h> |
|
|
55 | #include <limits.h> |
59 | #include <limits.h> |
56 | #include <fcntl.h> |
60 | #include <fcntl.h> |
57 | #include <assert.h> |
61 | #include <assert.h> |
58 | |
62 | |
|
|
63 | /* intptr_t comes from unistd.h, says POSIX/UNIX/tradition */ |
|
|
64 | /* intptr_t only comes from stdint.h, says idiot openbsd coder */ |
|
|
65 | #if HAVE_STDINT_H |
|
|
66 | # include <stdint.h> |
|
|
67 | #endif |
|
|
68 | |
|
|
69 | #ifndef ECANCELED |
|
|
70 | # define ECANCELED EDOM |
|
|
71 | #endif |
|
|
72 | #ifndef ELOOP |
|
|
73 | # define ELOOP EDOM |
|
|
74 | #endif |
|
|
75 | |
|
|
76 | #if !defined(ENOTSOCK) && defined(WSAENOTSOCK) |
|
|
77 | # define ENOTSOCK WSAENOTSOCK |
|
|
78 | #endif |
|
|
79 | |
|
|
80 | static void eio_destroy (eio_req *req); |
|
|
81 | |
59 | #ifndef EIO_FINISH |
82 | #ifndef EIO_FINISH |
60 | # define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0 |
83 | # define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0 |
61 | #endif |
84 | #endif |
62 | |
85 | |
63 | #ifndef EIO_DESTROY |
86 | #ifndef EIO_DESTROY |
… | |
… | |
66 | |
89 | |
67 | #ifndef EIO_FEED |
90 | #ifndef EIO_FEED |
68 | # define EIO_FEED(req) do { if ((req)->feed ) (req)->feed (req); } while (0) |
91 | # define EIO_FEED(req) do { if ((req)->feed ) (req)->feed (req); } while (0) |
69 | #endif |
92 | #endif |
70 | |
93 | |
|
|
94 | #ifndef EIO_FD_TO_WIN32_HANDLE |
|
|
95 | # define EIO_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
96 | #endif |
|
|
97 | #ifndef EIO_WIN32_HANDLE_TO_FD |
|
|
98 | # define EIO_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
99 | #endif |
|
|
100 | |
|
|
101 | #define EIO_ERRNO(errval,retval) ((errno = errval), retval) |
|
|
102 | |
|
|
103 | #define EIO_ENOSYS() EIO_ERRNO (ENOSYS, -1) |
|
|
104 | |
71 | #ifdef _WIN32 |
105 | #ifdef _WIN32 |
72 | |
106 | |
73 | /*doh*/ |
107 | #undef PAGESIZE |
|
|
108 | #define PAGESIZE 4096 /* GetSystemInfo? */ |
|
|
109 | |
|
|
110 | /* TODO: look at how perl does stat (non-sloppy), unlink (ro-files), utime, link */ |
|
|
111 | |
|
|
112 | #ifdef EIO_STRUCT_STATI64 |
|
|
113 | /* look at perl's non-sloppy stat */ |
|
|
114 | #define stat(path,buf) _stati64 (path,buf) |
|
|
115 | #define fstat(fd,buf) _fstati64 (fd,buf) |
|
|
116 | #endif |
|
|
117 | #define lstat(path,buf) stat (path,buf) |
|
|
118 | #define fsync(fd) (FlushFileBuffers ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd)) ? 0 : EIO_ERRNO (EBADF, -1)) |
|
|
119 | #define mkdir(path,mode) _mkdir (path) |
|
|
120 | #define link(old,neu) (CreateHardLink (neu, old, 0) ? 0 : EIO_ERRNO (ENOENT, -1)) |
|
|
121 | |
|
|
122 | #define chmod(path,mode) _chmod (path, mode) |
|
|
123 | #define dup(fd) _dup (fd) |
|
|
124 | #define dup2(fd1,fd2) _dup2 (fd1, fd2) |
|
|
125 | |
|
|
126 | #define fchmod(fd,mode) EIO_ENOSYS () |
|
|
127 | #define chown(path,uid,gid) EIO_ENOSYS () |
|
|
128 | #define fchown(fd,uid,gid) EIO_ENOSYS () |
|
|
129 | #define truncate(path,offs) EIO_ENOSYS () /* far-miss: SetEndOfFile */ |
|
|
130 | #define ftruncate(fd,offs) EIO_ENOSYS () /* near-miss: SetEndOfFile */ |
|
|
131 | #define mknod(path,mode,dev) EIO_ENOSYS () |
|
|
132 | #define sync() EIO_ENOSYS () |
|
|
133 | #define readlink(path,buf,s) EIO_ENOSYS () |
|
|
134 | #define statvfs(path,buf) EIO_ENOSYS () |
|
|
135 | #define fstatvfs(fd,buf) EIO_ENOSYS () |
|
|
136 | |
|
|
137 | /* rename() uses MoveFile, which fails to overwrite */ |
|
|
138 | #define rename(old,neu) eio__rename (old, neu) |
|
|
139 | |
|
|
140 | static int |
|
|
141 | eio__rename (const char *old, const char *neu) |
|
|
142 | { |
|
|
143 | if (MoveFileEx (old, neu, MOVEFILE_REPLACE_EXISTING)) |
|
|
144 | return 0; |
|
|
145 | |
|
|
146 | /* should steal _dosmaperr */ |
|
|
147 | switch (GetLastError ()) |
|
|
148 | { |
|
|
149 | case ERROR_FILE_NOT_FOUND: |
|
|
150 | case ERROR_PATH_NOT_FOUND: |
|
|
151 | case ERROR_INVALID_DRIVE: |
|
|
152 | case ERROR_NO_MORE_FILES: |
|
|
153 | case ERROR_BAD_NETPATH: |
|
|
154 | case ERROR_BAD_NET_NAME: |
|
|
155 | case ERROR_BAD_PATHNAME: |
|
|
156 | case ERROR_FILENAME_EXCED_RANGE: |
|
|
157 | errno = ENOENT; |
|
|
158 | break; |
|
|
159 | |
|
|
160 | default: |
|
|
161 | errno = EACCES; |
|
|
162 | break; |
|
|
163 | } |
|
|
164 | |
|
|
165 | return -1; |
|
|
166 | } |
|
|
167 | |
|
|
168 | /* we could even stat and see if it exists */ |
|
|
169 | static int |
|
|
170 | symlink (const char *old, const char *neu) |
|
|
171 | { |
|
|
172 | #if WINVER >= 0x0600 |
|
|
173 | if (CreateSymbolicLink (neu, old, 1)) |
|
|
174 | return 0; |
|
|
175 | |
|
|
176 | if (CreateSymbolicLink (neu, old, 0)) |
|
|
177 | return 0; |
|
|
178 | #endif |
|
|
179 | |
|
|
180 | return EIO_ERRNO (ENOENT, -1); |
|
|
181 | } |
|
|
182 | |
|
|
183 | /* POSIX API only */ |
|
|
184 | #define CreateHardLink(neu,old,flags) 0 |
|
|
185 | #define CreateSymbolicLink(neu,old,flags) 0 |
|
|
186 | |
|
|
187 | struct statvfs |
|
|
188 | { |
|
|
189 | int dummy; |
|
|
190 | }; |
|
|
191 | |
|
|
192 | #define DT_DIR EIO_DT_DIR |
|
|
193 | #define DT_REG EIO_DT_REG |
|
|
194 | #define D_NAME(entp) entp.cFileName |
|
|
195 | #define D_TYPE(entp) (entp.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ? DT_DIR : DT_REG) |
|
|
196 | |
74 | #else |
197 | #else |
75 | |
198 | |
76 | # include "config.h" |
|
|
77 | # include <sys/time.h> |
199 | #include <sys/time.h> |
78 | # include <sys/select.h> |
200 | #include <sys/select.h> |
|
|
201 | #include <sys/statvfs.h> |
79 | # include <unistd.h> |
202 | #include <unistd.h> |
|
|
203 | #include <signal.h> |
|
|
204 | #include <dirent.h> |
|
|
205 | |
|
|
206 | #if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES |
|
|
207 | #include <sys/mman.h> |
|
|
208 | #endif |
|
|
209 | |
|
|
210 | #define D_NAME(entp) entp->d_name |
|
|
211 | |
|
|
212 | /* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */ |
|
|
213 | #if __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__ |
|
|
214 | #define _DIRENT_HAVE_D_TYPE /* sigh */ |
|
|
215 | #define D_INO(de) (de)->d_fileno |
|
|
216 | #define D_NAMLEN(de) (de)->d_namlen |
|
|
217 | #elif __linux || defined d_ino || _XOPEN_SOURCE >= 600 |
|
|
218 | #define D_INO(de) (de)->d_ino |
|
|
219 | #endif |
|
|
220 | |
|
|
221 | #ifdef _D_EXACT_NAMLEN |
|
|
222 | #undef D_NAMLEN |
|
|
223 | #define D_NAMLEN(de) _D_EXACT_NAMLEN (de) |
|
|
224 | #endif |
|
|
225 | |
|
|
226 | #ifdef _DIRENT_HAVE_D_TYPE |
|
|
227 | #define D_TYPE(de) (de)->d_type |
|
|
228 | #endif |
|
|
229 | |
|
|
230 | #ifndef EIO_STRUCT_DIRENT |
|
|
231 | #define EIO_STRUCT_DIRENT struct dirent |
|
|
232 | #endif |
|
|
233 | |
|
|
234 | #endif |
|
|
235 | |
|
|
236 | #if HAVE_UTIMES |
80 | # include <utime.h> |
237 | # include <utime.h> |
81 | # include <signal.h> |
|
|
82 | # include <dirent.h> |
|
|
83 | |
|
|
84 | #if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES |
|
|
85 | # include <sys/mman.h> |
|
|
86 | #endif |
|
|
87 | |
|
|
88 | /* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */ |
|
|
89 | # if __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__ |
|
|
90 | # define _DIRENT_HAVE_D_TYPE /* sigh */ |
|
|
91 | # define D_INO(de) (de)->d_fileno |
|
|
92 | # define D_NAMLEN(de) (de)->d_namlen |
|
|
93 | # elif __linux || defined d_ino || _XOPEN_SOURCE >= 600 |
|
|
94 | # define D_INO(de) (de)->d_ino |
|
|
95 | # endif |
238 | #endif |
96 | |
239 | |
97 | #ifdef _D_EXACT_NAMLEN |
240 | #if HAVE_SYS_SYSCALL_H |
98 | # undef D_NAMLEN |
241 | # include <sys/syscall.h> |
99 | # define D_NAMLEN(de) _D_EXACT_NAMLEN (de) |
|
|
100 | #endif |
|
|
101 | |
|
|
102 | # ifdef _DIRENT_HAVE_D_TYPE |
|
|
103 | # define D_TYPE(de) (de)->d_type |
|
|
104 | # endif |
242 | #endif |
105 | |
243 | |
106 | # ifndef EIO_STRUCT_DIRENT |
244 | #if HAVE_SYS_PRCTL_H |
107 | # define EIO_STRUCT_DIRENT struct dirent |
245 | # include <sys/prctl.h> |
108 | # endif |
|
|
109 | |
|
|
110 | #endif |
246 | #endif |
111 | |
247 | |
112 | #if HAVE_SENDFILE |
248 | #if HAVE_SENDFILE |
113 | # if __linux |
249 | # if __linux |
114 | # include <sys/sendfile.h> |
250 | # include <sys/sendfile.h> |
… | |
… | |
129 | #endif |
265 | #endif |
130 | #ifndef D_INO |
266 | #ifndef D_INO |
131 | # define D_INO(de) 0 |
267 | # define D_INO(de) 0 |
132 | #endif |
268 | #endif |
133 | #ifndef D_NAMLEN |
269 | #ifndef D_NAMLEN |
134 | # define D_NAMLEN(de) strlen ((de)->d_name) |
270 | # define D_NAMLEN(entp) strlen (D_NAME (entp)) |
135 | #endif |
271 | #endif |
136 | |
272 | |
137 | /* used for struct dirent, AIX doesn't provide it */ |
273 | /* used for struct dirent, AIX doesn't provide it */ |
138 | #ifndef NAME_MAX |
274 | #ifndef NAME_MAX |
139 | # define NAME_MAX 4096 |
275 | # define NAME_MAX 4096 |
… | |
… | |
146 | |
282 | |
147 | /* buffer size for various temporary buffers */ |
283 | /* buffer size for various temporary buffers */ |
148 | #define EIO_BUFSIZE 65536 |
284 | #define EIO_BUFSIZE 65536 |
149 | |
285 | |
150 | #define dBUF \ |
286 | #define dBUF \ |
151 | char *eio_buf; \ |
|
|
152 | ETP_WORKER_LOCK (self); \ |
|
|
153 | self->dbuf = eio_buf = malloc (EIO_BUFSIZE); \ |
287 | char *eio_buf = malloc (EIO_BUFSIZE); \ |
154 | ETP_WORKER_UNLOCK (self); \ |
|
|
155 | errno = ENOMEM; \ |
288 | errno = ENOMEM; \ |
156 | if (!eio_buf) \ |
289 | if (!eio_buf) \ |
157 | return -1; |
290 | return -1 |
|
|
291 | |
|
|
292 | #define FUBd \ |
|
|
293 | free (eio_buf) |
158 | |
294 | |
159 | #define EIO_TICKS ((1000000 + 1023) >> 10) |
295 | #define EIO_TICKS ((1000000 + 1023) >> 10) |
160 | |
296 | |
161 | /*****************************************************************************/ |
297 | /*****************************************************************************/ |
162 | |
298 | |
163 | #if __GNUC__ >= 3 |
299 | struct tmpbuf |
164 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
300 | { |
|
|
301 | void *ptr; |
|
|
302 | int len; |
|
|
303 | }; |
|
|
304 | |
|
|
305 | static void * |
|
|
306 | tmpbuf_get (struct tmpbuf *buf, int len) |
|
|
307 | { |
|
|
308 | if (buf->len < len) |
|
|
309 | { |
|
|
310 | free (buf->ptr); |
|
|
311 | buf->ptr = malloc (buf->len = len); |
|
|
312 | } |
|
|
313 | |
|
|
314 | return buf->ptr; |
|
|
315 | } |
|
|
316 | |
|
|
317 | struct tmpbuf; |
|
|
318 | |
|
|
319 | #if _POSIX_VERSION >= 200809L |
|
|
320 | #define HAVE_AT 1 |
|
|
321 | #define WD2FD(wd) ((wd) ? (wd)->fd : AT_FDCWD) |
|
|
322 | #ifndef O_SEARCH |
|
|
323 | #define O_SEARCH O_RDONLY |
|
|
324 | #endif |
165 | #else |
325 | #else |
166 | # define expect(expr,value) (expr) |
326 | #define HAVE_AT 0 |
|
|
327 | static const char *wd_expand (struct tmpbuf *tmpbuf, eio_wd wd, const char *path); |
167 | #endif |
328 | #endif |
168 | |
329 | |
169 | #define expect_false(expr) expect ((expr) != 0, 0) |
330 | struct eio_pwd |
170 | #define expect_true(expr) expect ((expr) != 0, 1) |
331 | { |
|
|
332 | #if HAVE_AT |
|
|
333 | int fd; |
|
|
334 | #endif |
|
|
335 | int len; |
|
|
336 | char str[1]; /* actually, a 0-terminated canonical path */ |
|
|
337 | }; |
171 | |
338 | |
172 | /*****************************************************************************/ |
339 | /*****************************************************************************/ |
173 | |
340 | |
174 | #define ETP_PRI_MIN EIO_PRI_MIN |
341 | #define ETP_PRI_MIN EIO_PRI_MIN |
175 | #define ETP_PRI_MAX EIO_PRI_MAX |
342 | #define ETP_PRI_MAX EIO_PRI_MAX |
… | |
… | |
181 | static int eio_finish (eio_req *req); |
348 | static int eio_finish (eio_req *req); |
182 | #define ETP_FINISH(req) eio_finish (req) |
349 | #define ETP_FINISH(req) eio_finish (req) |
183 | static void eio_execute (struct etp_worker *self, eio_req *req); |
350 | static void eio_execute (struct etp_worker *self, eio_req *req); |
184 | #define ETP_EXECUTE(wrk,req) eio_execute (wrk,req) |
351 | #define ETP_EXECUTE(wrk,req) eio_execute (wrk,req) |
185 | |
352 | |
186 | #define ETP_WORKER_CLEAR(req) \ |
|
|
187 | if (wrk->dbuf) \ |
|
|
188 | { \ |
|
|
189 | free (wrk->dbuf); \ |
|
|
190 | wrk->dbuf = 0; \ |
|
|
191 | } \ |
|
|
192 | \ |
|
|
193 | if (wrk->dirp) \ |
|
|
194 | { \ |
|
|
195 | closedir (wrk->dirp); \ |
|
|
196 | wrk->dirp = 0; \ |
|
|
197 | } |
|
|
198 | |
|
|
199 | #define ETP_WORKER_COMMON \ |
|
|
200 | void *dbuf; \ |
|
|
201 | DIR *dirp; |
|
|
202 | |
|
|
203 | /*****************************************************************************/ |
353 | /*****************************************************************************/ |
204 | |
354 | |
205 | #define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1) |
355 | #define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1) |
206 | |
356 | |
207 | /* calculate time difference in ~1/EIO_TICKS of a second */ |
357 | /* calculate time difference in ~1/EIO_TICKS of a second */ |
|
|
358 | ecb_inline int |
208 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
359 | tvdiff (struct timeval *tv1, struct timeval *tv2) |
209 | { |
360 | { |
210 | return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS |
361 | return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS |
211 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
362 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
212 | } |
363 | } |
213 | |
364 | |
… | |
… | |
217 | static void (*done_poll_cb) (void); |
368 | static void (*done_poll_cb) (void); |
218 | |
369 | |
219 | static unsigned int max_poll_time; /* reslock */ |
370 | static unsigned int max_poll_time; /* reslock */ |
220 | static unsigned int max_poll_reqs; /* reslock */ |
371 | static unsigned int max_poll_reqs; /* reslock */ |
221 | |
372 | |
222 | static volatile unsigned int nreqs; /* reqlock */ |
373 | static unsigned int nreqs; /* reqlock */ |
223 | static volatile unsigned int nready; /* reqlock */ |
374 | static unsigned int nready; /* reqlock */ |
224 | static volatile unsigned int npending; /* reqlock */ |
375 | static unsigned int npending; /* reqlock */ |
225 | static volatile unsigned int max_idle = 4; /* maximum number of threads that can idle indefinitely */ |
376 | static unsigned int max_idle = 4; /* maximum number of threads that can idle indefinitely */ |
226 | static volatile unsigned int idle_timeout = 10; /* number of seconds after which an idle threads exit */ |
377 | static unsigned int idle_timeout = 10; /* number of seconds after which an idle threads exit */ |
227 | |
378 | |
228 | static xmutex_t wrklock; |
379 | static xmutex_t wrklock; |
229 | static xmutex_t reslock; |
380 | static xmutex_t reslock; |
230 | static xmutex_t reqlock; |
381 | static xmutex_t reqlock; |
231 | static xcond_t reqwait; |
382 | static xcond_t reqwait; |
… | |
… | |
234 | /* |
385 | /* |
235 | * make our pread/pwrite emulation safe against themselves, but not against |
386 | * make our pread/pwrite emulation safe against themselves, but not against |
236 | * normal read/write by using a mutex. slows down execution a lot, |
387 | * normal read/write by using a mutex. slows down execution a lot, |
237 | * but that's your problem, not mine. |
388 | * but that's your problem, not mine. |
238 | */ |
389 | */ |
239 | static xmutex_t preadwritelock = X_MUTEX_INIT; |
390 | static xmutex_t preadwritelock; |
240 | #endif |
391 | #endif |
241 | |
392 | |
242 | typedef struct etp_worker |
393 | typedef struct etp_worker |
243 | { |
394 | { |
|
|
395 | struct tmpbuf tmpbuf; |
|
|
396 | |
244 | /* locked by wrklock */ |
397 | /* locked by wrklock */ |
245 | struct etp_worker *prev, *next; |
398 | struct etp_worker *prev, *next; |
246 | |
399 | |
247 | xthread_t tid; |
400 | xthread_t tid; |
248 | |
401 | |
249 | /* locked by reslock, reqlock or wrklock */ |
402 | #ifdef ETP_WORKER_COMMON |
250 | ETP_REQ *req; /* currently processed request */ |
|
|
251 | |
|
|
252 | ETP_WORKER_COMMON |
403 | ETP_WORKER_COMMON |
|
|
404 | #endif |
253 | } etp_worker; |
405 | } etp_worker; |
254 | |
406 | |
255 | static etp_worker wrk_first = { &wrk_first, &wrk_first, 0 }; /* NOT etp */ |
407 | static etp_worker wrk_first; /* NOT etp */ |
256 | |
408 | |
257 | #define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock) |
409 | #define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock) |
258 | #define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock) |
410 | #define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock) |
259 | |
411 | |
260 | /* worker threads management */ |
412 | /* worker threads management */ |
261 | |
413 | |
|
|
414 | static void |
262 | static void etp_worker_clear (etp_worker *wrk) |
415 | etp_worker_clear (etp_worker *wrk) |
263 | { |
416 | { |
264 | ETP_WORKER_CLEAR (wrk); |
|
|
265 | } |
417 | } |
266 | |
418 | |
|
|
419 | static void ecb_cold |
267 | static void etp_worker_free (etp_worker *wrk) |
420 | etp_worker_free (etp_worker *wrk) |
268 | { |
421 | { |
|
|
422 | free (wrk->tmpbuf.ptr); |
|
|
423 | |
269 | wrk->next->prev = wrk->prev; |
424 | wrk->next->prev = wrk->prev; |
270 | wrk->prev->next = wrk->next; |
425 | wrk->prev->next = wrk->next; |
271 | |
426 | |
272 | free (wrk); |
427 | free (wrk); |
273 | } |
428 | } |
274 | |
429 | |
275 | static unsigned int etp_nreqs (void) |
430 | static unsigned int |
|
|
431 | etp_nreqs (void) |
276 | { |
432 | { |
277 | int retval; |
433 | int retval; |
278 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
434 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
279 | retval = nreqs; |
435 | retval = nreqs; |
280 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
436 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
281 | return retval; |
437 | return retval; |
282 | } |
438 | } |
283 | |
439 | |
284 | static unsigned int etp_nready (void) |
440 | static unsigned int |
|
|
441 | etp_nready (void) |
285 | { |
442 | { |
286 | unsigned int retval; |
443 | unsigned int retval; |
287 | |
444 | |
288 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
445 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
289 | retval = nready; |
446 | retval = nready; |
290 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
447 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
291 | |
448 | |
292 | return retval; |
449 | return retval; |
293 | } |
450 | } |
294 | |
451 | |
295 | static unsigned int etp_npending (void) |
452 | static unsigned int |
|
|
453 | etp_npending (void) |
296 | { |
454 | { |
297 | unsigned int retval; |
455 | unsigned int retval; |
298 | |
456 | |
299 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
457 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
300 | retval = npending; |
458 | retval = npending; |
301 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
459 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
302 | |
460 | |
303 | return retval; |
461 | return retval; |
304 | } |
462 | } |
305 | |
463 | |
306 | static unsigned int etp_nthreads (void) |
464 | static unsigned int |
|
|
465 | etp_nthreads (void) |
307 | { |
466 | { |
308 | unsigned int retval; |
467 | unsigned int retval; |
309 | |
468 | |
310 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
469 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
311 | retval = started; |
470 | retval = started; |
… | |
… | |
325 | } etp_reqq; |
484 | } etp_reqq; |
326 | |
485 | |
327 | static etp_reqq req_queue; |
486 | static etp_reqq req_queue; |
328 | static etp_reqq res_queue; |
487 | static etp_reqq res_queue; |
329 | |
488 | |
|
|
489 | static void ecb_noinline ecb_cold |
|
|
490 | reqq_init (etp_reqq *q) |
|
|
491 | { |
|
|
492 | int pri; |
|
|
493 | |
|
|
494 | for (pri = 0; pri < ETP_NUM_PRI; ++pri) |
|
|
495 | q->qs[pri] = q->qe[pri] = 0; |
|
|
496 | |
|
|
497 | q->size = 0; |
|
|
498 | } |
|
|
499 | |
|
|
500 | static int ecb_noinline |
330 | static int reqq_push (etp_reqq *q, ETP_REQ *req) |
501 | reqq_push (etp_reqq *q, ETP_REQ *req) |
331 | { |
502 | { |
332 | int pri = req->pri; |
503 | int pri = req->pri; |
333 | req->next = 0; |
504 | req->next = 0; |
334 | |
505 | |
335 | if (q->qe[pri]) |
506 | if (q->qe[pri]) |
… | |
… | |
341 | q->qe[pri] = q->qs[pri] = req; |
512 | q->qe[pri] = q->qs[pri] = req; |
342 | |
513 | |
343 | return q->size++; |
514 | return q->size++; |
344 | } |
515 | } |
345 | |
516 | |
|
|
517 | static ETP_REQ * ecb_noinline |
346 | static ETP_REQ *reqq_shift (etp_reqq *q) |
518 | reqq_shift (etp_reqq *q) |
347 | { |
519 | { |
348 | int pri; |
520 | int pri; |
349 | |
521 | |
350 | if (!q->size) |
522 | if (!q->size) |
351 | return 0; |
523 | return 0; |
… | |
… | |
366 | } |
538 | } |
367 | |
539 | |
368 | abort (); |
540 | abort (); |
369 | } |
541 | } |
370 | |
542 | |
371 | static void etp_thread_init (void) |
543 | static int ecb_cold |
|
|
544 | etp_init (void (*want_poll)(void), void (*done_poll)(void)) |
372 | { |
545 | { |
373 | X_MUTEX_CREATE (wrklock); |
546 | X_MUTEX_CREATE (wrklock); |
374 | X_MUTEX_CREATE (reslock); |
547 | X_MUTEX_CREATE (reslock); |
375 | X_MUTEX_CREATE (reqlock); |
548 | X_MUTEX_CREATE (reqlock); |
376 | X_COND_CREATE (reqwait); |
549 | X_COND_CREATE (reqwait); |
377 | } |
|
|
378 | |
550 | |
379 | static void etp_atfork_prepare (void) |
551 | reqq_init (&req_queue); |
380 | { |
552 | reqq_init (&res_queue); |
381 | X_LOCK (wrklock); |
|
|
382 | X_LOCK (reqlock); |
|
|
383 | X_LOCK (reslock); |
|
|
384 | #if !HAVE_PREADWRITE |
|
|
385 | X_LOCK (preadwritelock); |
|
|
386 | #endif |
|
|
387 | } |
|
|
388 | |
553 | |
389 | static void etp_atfork_parent (void) |
554 | wrk_first.next = |
390 | { |
555 | wrk_first.prev = &wrk_first; |
391 | #if !HAVE_PREADWRITE |
|
|
392 | X_UNLOCK (preadwritelock); |
|
|
393 | #endif |
|
|
394 | X_UNLOCK (reslock); |
|
|
395 | X_UNLOCK (reqlock); |
|
|
396 | X_UNLOCK (wrklock); |
|
|
397 | } |
|
|
398 | |
|
|
399 | static void etp_atfork_child (void) |
|
|
400 | { |
|
|
401 | ETP_REQ *prv; |
|
|
402 | |
|
|
403 | while ((prv = reqq_shift (&req_queue))) |
|
|
404 | ETP_DESTROY (prv); |
|
|
405 | |
|
|
406 | while ((prv = reqq_shift (&res_queue))) |
|
|
407 | ETP_DESTROY (prv); |
|
|
408 | |
|
|
409 | while (wrk_first.next != &wrk_first) |
|
|
410 | { |
|
|
411 | etp_worker *wrk = wrk_first.next; |
|
|
412 | |
|
|
413 | if (wrk->req) |
|
|
414 | ETP_DESTROY (wrk->req); |
|
|
415 | |
|
|
416 | etp_worker_clear (wrk); |
|
|
417 | etp_worker_free (wrk); |
|
|
418 | } |
|
|
419 | |
556 | |
420 | started = 0; |
557 | started = 0; |
421 | idle = 0; |
558 | idle = 0; |
422 | nreqs = 0; |
559 | nreqs = 0; |
423 | nready = 0; |
560 | nready = 0; |
424 | npending = 0; |
561 | npending = 0; |
425 | |
562 | |
426 | etp_thread_init (); |
|
|
427 | } |
|
|
428 | |
|
|
429 | static void |
|
|
430 | etp_once_init (void) |
|
|
431 | { |
|
|
432 | etp_thread_init (); |
|
|
433 | X_THREAD_ATFORK (etp_atfork_prepare, etp_atfork_parent, etp_atfork_child); |
|
|
434 | } |
|
|
435 | |
|
|
436 | static int |
|
|
437 | etp_init (void (*want_poll)(void), void (*done_poll)(void)) |
|
|
438 | { |
|
|
439 | static pthread_once_t doinit = PTHREAD_ONCE_INIT; |
|
|
440 | |
|
|
441 | pthread_once (&doinit, etp_once_init); |
|
|
442 | |
|
|
443 | want_poll_cb = want_poll; |
563 | want_poll_cb = want_poll; |
444 | done_poll_cb = done_poll; |
564 | done_poll_cb = done_poll; |
445 | |
565 | |
446 | return 0; |
566 | return 0; |
447 | } |
567 | } |
448 | |
568 | |
449 | X_THREAD_PROC (etp_proc); |
569 | X_THREAD_PROC (etp_proc); |
450 | |
570 | |
|
|
571 | static void ecb_cold |
451 | static void etp_start_thread (void) |
572 | etp_start_thread (void) |
452 | { |
573 | { |
453 | etp_worker *wrk = calloc (1, sizeof (etp_worker)); |
574 | etp_worker *wrk = calloc (1, sizeof (etp_worker)); |
454 | |
575 | |
455 | /*TODO*/ |
576 | /*TODO*/ |
456 | assert (("unable to allocate worker thread data", wrk)); |
577 | assert (("unable to allocate worker thread data", wrk)); |
… | |
… | |
469 | free (wrk); |
590 | free (wrk); |
470 | |
591 | |
471 | X_UNLOCK (wrklock); |
592 | X_UNLOCK (wrklock); |
472 | } |
593 | } |
473 | |
594 | |
|
|
595 | static void |
474 | static void etp_maybe_start_thread (void) |
596 | etp_maybe_start_thread (void) |
475 | { |
597 | { |
476 | if (expect_true (etp_nthreads () >= wanted)) |
598 | if (ecb_expect_true (etp_nthreads () >= wanted)) |
477 | return; |
599 | return; |
478 | |
600 | |
479 | /* todo: maybe use idle here, but might be less exact */ |
601 | /* todo: maybe use idle here, but might be less exact */ |
480 | if (expect_true (0 <= (int)etp_nthreads () + (int)etp_npending () - (int)etp_nreqs ())) |
602 | if (ecb_expect_true (0 <= (int)etp_nthreads () + (int)etp_npending () - (int)etp_nreqs ())) |
481 | return; |
603 | return; |
482 | |
604 | |
483 | etp_start_thread (); |
605 | etp_start_thread (); |
484 | } |
606 | } |
485 | |
607 | |
|
|
608 | static void ecb_cold |
486 | static void etp_end_thread (void) |
609 | etp_end_thread (void) |
487 | { |
610 | { |
488 | eio_req *req = calloc (1, sizeof (eio_req)); |
611 | eio_req *req = calloc (1, sizeof (eio_req)); /* will be freed by worker */ |
489 | |
612 | |
490 | req->type = -1; |
613 | req->type = -1; |
491 | req->pri = ETP_PRI_MAX - ETP_PRI_MIN; |
614 | req->pri = ETP_PRI_MAX - ETP_PRI_MIN; |
492 | |
615 | |
493 | X_LOCK (reqlock); |
616 | X_LOCK (reqlock); |
… | |
… | |
498 | X_LOCK (wrklock); |
621 | X_LOCK (wrklock); |
499 | --started; |
622 | --started; |
500 | X_UNLOCK (wrklock); |
623 | X_UNLOCK (wrklock); |
501 | } |
624 | } |
502 | |
625 | |
503 | static int etp_poll (void) |
626 | static int |
|
|
627 | etp_poll (void) |
504 | { |
628 | { |
505 | unsigned int maxreqs; |
629 | unsigned int maxreqs; |
506 | unsigned int maxtime; |
630 | unsigned int maxtime; |
507 | struct timeval tv_start, tv_now; |
631 | struct timeval tv_start, tv_now; |
508 | |
632 | |
… | |
… | |
538 | |
662 | |
539 | X_LOCK (reqlock); |
663 | X_LOCK (reqlock); |
540 | --nreqs; |
664 | --nreqs; |
541 | X_UNLOCK (reqlock); |
665 | X_UNLOCK (reqlock); |
542 | |
666 | |
543 | if (expect_false (req->type == EIO_GROUP && req->size)) |
667 | if (ecb_expect_false (req->type == EIO_GROUP && req->size)) |
544 | { |
668 | { |
545 | req->int1 = 1; /* mark request as delayed */ |
669 | req->int1 = 1; /* mark request as delayed */ |
546 | continue; |
670 | continue; |
547 | } |
671 | } |
548 | else |
672 | else |
549 | { |
673 | { |
550 | int res = ETP_FINISH (req); |
674 | int res = ETP_FINISH (req); |
551 | if (expect_false (res)) |
675 | if (ecb_expect_false (res)) |
552 | return res; |
676 | return res; |
553 | } |
677 | } |
554 | |
678 | |
555 | if (expect_false (maxreqs && !--maxreqs)) |
679 | if (ecb_expect_false (maxreqs && !--maxreqs)) |
556 | break; |
680 | break; |
557 | |
681 | |
558 | if (maxtime) |
682 | if (maxtime) |
559 | { |
683 | { |
560 | gettimeofday (&tv_now, 0); |
684 | gettimeofday (&tv_now, 0); |
… | |
… | |
566 | |
690 | |
567 | errno = EAGAIN; |
691 | errno = EAGAIN; |
568 | return -1; |
692 | return -1; |
569 | } |
693 | } |
570 | |
694 | |
|
|
695 | static void |
571 | static void etp_cancel (ETP_REQ *req) |
696 | etp_cancel (ETP_REQ *req) |
572 | { |
697 | { |
573 | X_LOCK (wrklock); |
698 | req->cancelled = 1; |
574 | req->flags |= EIO_FLAG_CANCELLED; |
|
|
575 | X_UNLOCK (wrklock); |
|
|
576 | |
699 | |
577 | eio_grp_cancel (req); |
700 | eio_grp_cancel (req); |
578 | } |
701 | } |
579 | |
702 | |
|
|
703 | static void |
580 | static void etp_submit (ETP_REQ *req) |
704 | etp_submit (ETP_REQ *req) |
581 | { |
705 | { |
582 | req->pri -= ETP_PRI_MIN; |
706 | req->pri -= ETP_PRI_MIN; |
583 | |
707 | |
584 | if (expect_false (req->pri < ETP_PRI_MIN - ETP_PRI_MIN)) req->pri = ETP_PRI_MIN - ETP_PRI_MIN; |
708 | if (ecb_expect_false (req->pri < ETP_PRI_MIN - ETP_PRI_MIN)) req->pri = ETP_PRI_MIN - ETP_PRI_MIN; |
585 | if (expect_false (req->pri > ETP_PRI_MAX - ETP_PRI_MIN)) req->pri = ETP_PRI_MAX - ETP_PRI_MIN; |
709 | if (ecb_expect_false (req->pri > ETP_PRI_MAX - ETP_PRI_MIN)) req->pri = ETP_PRI_MAX - ETP_PRI_MIN; |
586 | |
710 | |
587 | if (expect_false (req->type == EIO_GROUP)) |
711 | if (ecb_expect_false (req->type == EIO_GROUP)) |
588 | { |
712 | { |
589 | /* I hope this is worth it :/ */ |
713 | /* I hope this is worth it :/ */ |
590 | X_LOCK (reqlock); |
714 | X_LOCK (reqlock); |
591 | ++nreqs; |
715 | ++nreqs; |
592 | X_UNLOCK (reqlock); |
716 | X_UNLOCK (reqlock); |
… | |
… | |
611 | |
735 | |
612 | etp_maybe_start_thread (); |
736 | etp_maybe_start_thread (); |
613 | } |
737 | } |
614 | } |
738 | } |
615 | |
739 | |
|
|
740 | static void ecb_cold |
616 | static void etp_set_max_poll_time (double nseconds) |
741 | etp_set_max_poll_time (double nseconds) |
617 | { |
742 | { |
618 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
743 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
619 | max_poll_time = nseconds * EIO_TICKS; |
744 | max_poll_time = nseconds * EIO_TICKS; |
620 | if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); |
745 | if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); |
621 | } |
746 | } |
622 | |
747 | |
|
|
748 | static void ecb_cold |
623 | static void etp_set_max_poll_reqs (unsigned int maxreqs) |
749 | etp_set_max_poll_reqs (unsigned int maxreqs) |
624 | { |
750 | { |
625 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
751 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
626 | max_poll_reqs = maxreqs; |
752 | max_poll_reqs = maxreqs; |
627 | if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); |
753 | if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); |
628 | } |
754 | } |
629 | |
755 | |
|
|
756 | static void ecb_cold |
630 | static void etp_set_max_idle (unsigned int nthreads) |
757 | etp_set_max_idle (unsigned int nthreads) |
631 | { |
758 | { |
632 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
759 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
633 | max_idle = nthreads; |
760 | max_idle = nthreads; |
634 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
761 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
635 | } |
762 | } |
636 | |
763 | |
|
|
764 | static void ecb_cold |
637 | static void etp_set_idle_timeout (unsigned int seconds) |
765 | etp_set_idle_timeout (unsigned int seconds) |
638 | { |
766 | { |
639 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
767 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
640 | idle_timeout = seconds; |
768 | idle_timeout = seconds; |
641 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
769 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
642 | } |
770 | } |
643 | |
771 | |
|
|
772 | static void ecb_cold |
644 | static void etp_set_min_parallel (unsigned int nthreads) |
773 | etp_set_min_parallel (unsigned int nthreads) |
645 | { |
774 | { |
646 | if (wanted < nthreads) |
775 | if (wanted < nthreads) |
647 | wanted = nthreads; |
776 | wanted = nthreads; |
648 | } |
777 | } |
649 | |
778 | |
|
|
779 | static void ecb_cold |
650 | static void etp_set_max_parallel (unsigned int nthreads) |
780 | etp_set_max_parallel (unsigned int nthreads) |
651 | { |
781 | { |
652 | if (wanted > nthreads) |
782 | if (wanted > nthreads) |
653 | wanted = nthreads; |
783 | wanted = nthreads; |
654 | |
784 | |
655 | while (started > wanted) |
785 | while (started > wanted) |
656 | etp_end_thread (); |
786 | etp_end_thread (); |
657 | } |
787 | } |
658 | |
788 | |
659 | /*****************************************************************************/ |
789 | /*****************************************************************************/ |
660 | |
790 | |
|
|
791 | static void |
661 | static void grp_try_feed (eio_req *grp) |
792 | grp_try_feed (eio_req *grp) |
662 | { |
793 | { |
663 | while (grp->size < grp->int2 && !EIO_CANCELLED (grp)) |
794 | while (grp->size < grp->int2 && !EIO_CANCELLED (grp)) |
664 | { |
795 | { |
665 | grp->flags &= ~EIO_FLAG_GROUPADD; |
796 | grp->flags &= ~EIO_FLAG_GROUPADD; |
666 | |
797 | |
… | |
… | |
673 | break; |
804 | break; |
674 | } |
805 | } |
675 | } |
806 | } |
676 | } |
807 | } |
677 | |
808 | |
|
|
809 | static int |
678 | static int grp_dec (eio_req *grp) |
810 | grp_dec (eio_req *grp) |
679 | { |
811 | { |
680 | --grp->size; |
812 | --grp->size; |
681 | |
813 | |
682 | /* call feeder, if applicable */ |
814 | /* call feeder, if applicable */ |
683 | grp_try_feed (grp); |
815 | grp_try_feed (grp); |
… | |
… | |
687 | return eio_finish (grp); |
819 | return eio_finish (grp); |
688 | else |
820 | else |
689 | return 0; |
821 | return 0; |
690 | } |
822 | } |
691 | |
823 | |
|
|
824 | static void |
692 | void eio_destroy (eio_req *req) |
825 | eio_destroy (eio_req *req) |
693 | { |
826 | { |
694 | if ((req)->flags & EIO_FLAG_PTR1_FREE) free (req->ptr1); |
827 | if ((req)->flags & EIO_FLAG_PTR1_FREE) free (req->ptr1); |
695 | if ((req)->flags & EIO_FLAG_PTR2_FREE) free (req->ptr2); |
828 | if ((req)->flags & EIO_FLAG_PTR2_FREE) free (req->ptr2); |
696 | |
829 | |
697 | EIO_DESTROY (req); |
830 | EIO_DESTROY (req); |
698 | } |
831 | } |
699 | |
832 | |
|
|
833 | static int |
700 | static int eio_finish (eio_req *req) |
834 | eio_finish (eio_req *req) |
701 | { |
835 | { |
702 | int res = EIO_FINISH (req); |
836 | int res = EIO_FINISH (req); |
703 | |
837 | |
704 | if (req->grp) |
838 | if (req->grp) |
705 | { |
839 | { |
… | |
… | |
713 | if (grp->grp_first == req) |
847 | if (grp->grp_first == req) |
714 | grp->grp_first = req->grp_next; |
848 | grp->grp_first = req->grp_next; |
715 | |
849 | |
716 | res2 = grp_dec (grp); |
850 | res2 = grp_dec (grp); |
717 | |
851 | |
718 | if (!res && res2) |
852 | if (!res) |
719 | res = res2; |
853 | res = res2; |
720 | } |
854 | } |
721 | |
855 | |
722 | eio_destroy (req); |
856 | eio_destroy (req); |
723 | |
857 | |
724 | return res; |
858 | return res; |
725 | } |
859 | } |
726 | |
860 | |
|
|
861 | void |
727 | void eio_grp_cancel (eio_req *grp) |
862 | eio_grp_cancel (eio_req *grp) |
728 | { |
863 | { |
729 | for (grp = grp->grp_first; grp; grp = grp->grp_next) |
864 | for (grp = grp->grp_first; grp; grp = grp->grp_next) |
730 | eio_cancel (grp); |
865 | eio_cancel (grp); |
731 | } |
866 | } |
732 | |
867 | |
|
|
868 | void |
733 | void eio_cancel (eio_req *req) |
869 | eio_cancel (eio_req *req) |
734 | { |
870 | { |
735 | etp_cancel (req); |
871 | etp_cancel (req); |
736 | } |
872 | } |
737 | |
873 | |
|
|
874 | void |
738 | void eio_submit (eio_req *req) |
875 | eio_submit (eio_req *req) |
739 | { |
876 | { |
740 | etp_submit (req); |
877 | etp_submit (req); |
741 | } |
878 | } |
742 | |
879 | |
743 | unsigned int eio_nreqs (void) |
880 | unsigned int |
|
|
881 | eio_nreqs (void) |
744 | { |
882 | { |
745 | return etp_nreqs (); |
883 | return etp_nreqs (); |
746 | } |
884 | } |
747 | |
885 | |
748 | unsigned int eio_nready (void) |
886 | unsigned int |
|
|
887 | eio_nready (void) |
749 | { |
888 | { |
750 | return etp_nready (); |
889 | return etp_nready (); |
751 | } |
890 | } |
752 | |
891 | |
753 | unsigned int eio_npending (void) |
892 | unsigned int |
|
|
893 | eio_npending (void) |
754 | { |
894 | { |
755 | return etp_npending (); |
895 | return etp_npending (); |
756 | } |
896 | } |
757 | |
897 | |
758 | unsigned int eio_nthreads (void) |
898 | unsigned int ecb_cold |
|
|
899 | eio_nthreads (void) |
759 | { |
900 | { |
760 | return etp_nthreads (); |
901 | return etp_nthreads (); |
761 | } |
902 | } |
762 | |
903 | |
|
|
904 | void ecb_cold |
763 | void eio_set_max_poll_time (double nseconds) |
905 | eio_set_max_poll_time (double nseconds) |
764 | { |
906 | { |
765 | etp_set_max_poll_time (nseconds); |
907 | etp_set_max_poll_time (nseconds); |
766 | } |
908 | } |
767 | |
909 | |
|
|
910 | void ecb_cold |
768 | void eio_set_max_poll_reqs (unsigned int maxreqs) |
911 | eio_set_max_poll_reqs (unsigned int maxreqs) |
769 | { |
912 | { |
770 | etp_set_max_poll_reqs (maxreqs); |
913 | etp_set_max_poll_reqs (maxreqs); |
771 | } |
914 | } |
772 | |
915 | |
|
|
916 | void ecb_cold |
773 | void eio_set_max_idle (unsigned int nthreads) |
917 | eio_set_max_idle (unsigned int nthreads) |
774 | { |
918 | { |
775 | etp_set_max_idle (nthreads); |
919 | etp_set_max_idle (nthreads); |
776 | } |
920 | } |
777 | |
921 | |
|
|
922 | void ecb_cold |
778 | void eio_set_idle_timeout (unsigned int seconds) |
923 | eio_set_idle_timeout (unsigned int seconds) |
779 | { |
924 | { |
780 | etp_set_idle_timeout (seconds); |
925 | etp_set_idle_timeout (seconds); |
781 | } |
926 | } |
782 | |
927 | |
|
|
928 | void ecb_cold |
783 | void eio_set_min_parallel (unsigned int nthreads) |
929 | eio_set_min_parallel (unsigned int nthreads) |
784 | { |
930 | { |
785 | etp_set_min_parallel (nthreads); |
931 | etp_set_min_parallel (nthreads); |
786 | } |
932 | } |
787 | |
933 | |
|
|
934 | void ecb_cold |
788 | void eio_set_max_parallel (unsigned int nthreads) |
935 | eio_set_max_parallel (unsigned int nthreads) |
789 | { |
936 | { |
790 | etp_set_max_parallel (nthreads); |
937 | etp_set_max_parallel (nthreads); |
791 | } |
938 | } |
792 | |
939 | |
793 | int eio_poll (void) |
940 | int eio_poll (void) |
… | |
… | |
802 | # undef pread |
949 | # undef pread |
803 | # undef pwrite |
950 | # undef pwrite |
804 | # define pread eio__pread |
951 | # define pread eio__pread |
805 | # define pwrite eio__pwrite |
952 | # define pwrite eio__pwrite |
806 | |
953 | |
807 | static ssize_t |
954 | static eio_ssize_t |
808 | eio__pread (int fd, void *buf, size_t count, off_t offset) |
955 | eio__pread (int fd, void *buf, size_t count, off_t offset) |
809 | { |
956 | { |
810 | ssize_t res; |
957 | eio_ssize_t res; |
811 | off_t ooffset; |
958 | off_t ooffset; |
812 | |
959 | |
813 | X_LOCK (preadwritelock); |
960 | X_LOCK (preadwritelock); |
814 | ooffset = lseek (fd, 0, SEEK_CUR); |
961 | ooffset = lseek (fd, 0, SEEK_CUR); |
815 | lseek (fd, offset, SEEK_SET); |
962 | lseek (fd, offset, SEEK_SET); |
… | |
… | |
818 | X_UNLOCK (preadwritelock); |
965 | X_UNLOCK (preadwritelock); |
819 | |
966 | |
820 | return res; |
967 | return res; |
821 | } |
968 | } |
822 | |
969 | |
823 | static ssize_t |
970 | static eio_ssize_t |
824 | eio__pwrite (int fd, void *buf, size_t count, off_t offset) |
971 | eio__pwrite (int fd, void *buf, size_t count, off_t offset) |
825 | { |
972 | { |
826 | ssize_t res; |
973 | eio_ssize_t res; |
827 | off_t ooffset; |
974 | off_t ooffset; |
828 | |
975 | |
829 | X_LOCK (preadwritelock); |
976 | X_LOCK (preadwritelock); |
830 | ooffset = lseek (fd, 0, SEEK_CUR); |
977 | ooffset = lseek (fd, 0, SEEK_CUR); |
831 | lseek (fd, offset, SEEK_SET); |
978 | lseek (fd, offset, SEEK_SET); |
… | |
… | |
863 | #ifndef HAVE_FUTIMES |
1010 | #ifndef HAVE_FUTIMES |
864 | |
1011 | |
865 | # undef futimes |
1012 | # undef futimes |
866 | # define futimes(fd,times) eio__futimes (fd, times) |
1013 | # define futimes(fd,times) eio__futimes (fd, times) |
867 | |
1014 | |
|
|
1015 | static int |
868 | static int eio__futimes (int fd, const struct timeval tv[2]) |
1016 | eio__futimes (int fd, const struct timeval tv[2]) |
869 | { |
1017 | { |
870 | errno = ENOSYS; |
1018 | errno = ENOSYS; |
871 | return -1; |
1019 | return -1; |
872 | } |
1020 | } |
873 | |
1021 | |
… | |
… | |
876 | #if !HAVE_FDATASYNC |
1024 | #if !HAVE_FDATASYNC |
877 | # undef fdatasync |
1025 | # undef fdatasync |
878 | # define fdatasync(fd) fsync (fd) |
1026 | # define fdatasync(fd) fsync (fd) |
879 | #endif |
1027 | #endif |
880 | |
1028 | |
|
|
1029 | static int |
|
|
1030 | eio__syncfs (int fd) |
|
|
1031 | { |
|
|
1032 | int res; |
|
|
1033 | |
|
|
1034 | #if HAVE_SYS_SYNCFS |
|
|
1035 | res = (int)syscall (__NR_syncfs, (int)(fd)); |
|
|
1036 | #else |
|
|
1037 | res = -1; |
|
|
1038 | errno = ENOSYS; |
|
|
1039 | #endif |
|
|
1040 | |
|
|
1041 | if (res < 0 && errno == ENOSYS && fd >= 0) |
|
|
1042 | sync (); |
|
|
1043 | |
|
|
1044 | return res; |
|
|
1045 | } |
|
|
1046 | |
881 | /* sync_file_range always needs emulation */ |
1047 | /* sync_file_range always needs emulation */ |
882 | int |
1048 | static int |
883 | eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags) |
1049 | eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags) |
884 | { |
1050 | { |
885 | #if HAVE_SYNC_FILE_RANGE |
1051 | #if HAVE_SYNC_FILE_RANGE |
886 | int res; |
1052 | int res; |
887 | |
1053 | |
… | |
… | |
904 | /* even though we could play tricks with the flags, it's better to always |
1070 | /* even though we could play tricks with the flags, it's better to always |
905 | * call fdatasync, as that matches the expectation of its users best */ |
1071 | * call fdatasync, as that matches the expectation of its users best */ |
906 | return fdatasync (fd); |
1072 | return fdatasync (fd); |
907 | } |
1073 | } |
908 | |
1074 | |
|
|
1075 | static int |
|
|
1076 | eio__fallocate (int fd, int mode, off_t offset, size_t len) |
|
|
1077 | { |
|
|
1078 | #if HAVE_FALLOCATE |
|
|
1079 | return fallocate (fd, mode, offset, len); |
|
|
1080 | #else |
|
|
1081 | errno = ENOSYS; |
|
|
1082 | return -1; |
|
|
1083 | #endif |
|
|
1084 | } |
|
|
1085 | |
909 | #if !HAVE_READAHEAD |
1086 | #if !HAVE_READAHEAD |
910 | # undef readahead |
1087 | # undef readahead |
911 | # define readahead(fd,offset,count) eio__readahead (fd, offset, count, self) |
1088 | # define readahead(fd,offset,count) eio__readahead (fd, offset, count, self) |
912 | |
1089 | |
913 | static ssize_t |
1090 | static eio_ssize_t |
914 | eio__readahead (int fd, off_t offset, size_t count, etp_worker *self) |
1091 | eio__readahead (int fd, off_t offset, size_t count, etp_worker *self) |
915 | { |
1092 | { |
916 | size_t todo = count; |
1093 | size_t todo = count; |
917 | dBUF; |
1094 | dBUF; |
918 | |
1095 | |
… | |
… | |
923 | pread (fd, eio_buf, len, offset); |
1100 | pread (fd, eio_buf, len, offset); |
924 | offset += len; |
1101 | offset += len; |
925 | todo -= len; |
1102 | todo -= len; |
926 | } |
1103 | } |
927 | |
1104 | |
|
|
1105 | FUBd; |
|
|
1106 | |
928 | errno = 0; |
1107 | errno = 0; |
929 | return count; |
1108 | return count; |
930 | } |
1109 | } |
931 | |
1110 | |
932 | #endif |
1111 | #endif |
933 | |
1112 | |
934 | /* sendfile always needs emulation */ |
1113 | /* sendfile always needs emulation */ |
935 | static ssize_t |
1114 | static eio_ssize_t |
936 | eio__sendfile (int ofd, int ifd, off_t offset, size_t count, etp_worker *self) |
1115 | eio__sendfile (int ofd, int ifd, off_t offset, size_t count) |
937 | { |
1116 | { |
|
|
1117 | eio_ssize_t written = 0; |
938 | ssize_t res; |
1118 | eio_ssize_t res; |
939 | |
1119 | |
940 | if (!count) |
1120 | if (!count) |
941 | return 0; |
1121 | return 0; |
942 | |
1122 | |
|
|
1123 | for (;;) |
|
|
1124 | { |
|
|
1125 | #ifdef __APPLE__ |
|
|
1126 | # undef HAVE_SENDFILE /* broken, as everything on os x */ |
|
|
1127 | #endif |
943 | #if HAVE_SENDFILE |
1128 | #if HAVE_SENDFILE |
944 | # if __linux |
1129 | # if __linux |
|
|
1130 | off_t soffset = offset; |
945 | res = sendfile (ofd, ifd, &offset, count); |
1131 | res = sendfile (ofd, ifd, &soffset, count); |
946 | |
1132 | |
947 | # elif __FreeBSD__ |
1133 | # elif __FreeBSD__ |
948 | /* |
1134 | /* |
949 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
1135 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
950 | * wasted on making it similar to other I/O functions. |
1136 | * wasted on making it similar to other I/O functions. |
951 | */ |
1137 | */ |
952 | { |
|
|
953 | off_t sbytes; |
1138 | off_t sbytes; |
954 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
1139 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
955 | |
1140 | |
956 | #if 0 /* according to the manpage, this is correct, but broken behaviour */ |
1141 | #if 0 /* according to the manpage, this is correct, but broken behaviour */ |
957 | /* freebsd' sendfile will return 0 on success */ |
1142 | /* freebsd' sendfile will return 0 on success */ |
958 | /* freebsd 8 documents it as only setting *sbytes on EINTR and EAGAIN, but */ |
1143 | /* freebsd 8 documents it as only setting *sbytes on EINTR and EAGAIN, but */ |
959 | /* not on e.g. EIO or EPIPE - sounds broken */ |
1144 | /* not on e.g. EIO or EPIPE - sounds broken */ |
960 | if ((res < 0 && (errno == EAGAIN || errno == EINTR) && sbytes) || res == 0) |
1145 | if ((res < 0 && (errno == EAGAIN || errno == EINTR) && sbytes) || res == 0) |
961 | res = sbytes; |
1146 | res = sbytes; |
962 | #endif |
1147 | #endif |
963 | |
1148 | |
964 | /* according to source inspection, this is correct, and useful behaviour */ |
1149 | /* according to source inspection, this is correct, and useful behaviour */ |
965 | if (sbytes) |
1150 | if (sbytes) |
966 | res = sbytes; |
1151 | res = sbytes; |
967 | } |
|
|
968 | |
1152 | |
969 | # elif defined (__APPLE__) |
1153 | # elif defined (__APPLE__) |
970 | |
|
|
971 | { |
|
|
972 | off_t sbytes = count; |
1154 | off_t sbytes = count; |
973 | res = sendfile (ifd, ofd, offset, &sbytes, 0, 0); |
1155 | res = sendfile (ifd, ofd, offset, &sbytes, 0, 0); |
974 | |
1156 | |
975 | /* according to the manpage, sbytes is always valid */ |
1157 | /* according to the manpage, sbytes is always valid */ |
976 | if (sbytes) |
1158 | if (sbytes) |
977 | res = sbytes; |
1159 | res = sbytes; |
978 | } |
|
|
979 | |
1160 | |
980 | # elif __hpux |
1161 | # elif __hpux |
981 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
1162 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
982 | |
1163 | |
983 | # elif __solaris |
1164 | # elif __solaris |
984 | { |
|
|
985 | struct sendfilevec vec; |
1165 | struct sendfilevec vec; |
986 | size_t sbytes; |
1166 | size_t sbytes; |
987 | |
1167 | |
988 | vec.sfv_fd = ifd; |
1168 | vec.sfv_fd = ifd; |
989 | vec.sfv_flag = 0; |
1169 | vec.sfv_flag = 0; |
990 | vec.sfv_off = offset; |
1170 | vec.sfv_off = offset; |
991 | vec.sfv_len = count; |
1171 | vec.sfv_len = count; |
992 | |
1172 | |
993 | res = sendfilev (ofd, &vec, 1, &sbytes); |
1173 | res = sendfilev (ofd, &vec, 1, &sbytes); |
994 | |
1174 | |
995 | if (res < 0 && sbytes) |
1175 | if (res < 0 && sbytes) |
996 | res = sbytes; |
1176 | res = sbytes; |
997 | } |
|
|
998 | |
1177 | |
999 | # endif |
1178 | # endif |
1000 | |
1179 | |
1001 | #elif defined (_WIN32) |
1180 | #elif defined (_WIN32) && 0 |
1002 | |
|
|
1003 | /* does not work, just for documentation of what would need to be done */ |
1181 | /* does not work, just for documentation of what would need to be done */ |
1004 | { |
1182 | /* actually, cannot be done like this, as TransmitFile changes the file offset, */ |
|
|
1183 | /* libeio guarantees that the file offset does not change, and windows */ |
|
|
1184 | /* has no way to get an independent handle to the same file description */ |
1005 | HANDLE h = TO_SOCKET (ifd); |
1185 | HANDLE h = TO_SOCKET (ifd); |
1006 | SetFilePointer (h, offset, 0, FILE_BEGIN); |
1186 | SetFilePointer (h, offset, 0, FILE_BEGIN); |
1007 | res = TransmitFile (TO_SOCKET (ofd), h, count, 0, 0, 0, 0); |
1187 | res = TransmitFile (TO_SOCKET (ofd), h, count, 0, 0, 0, 0); |
1008 | } |
|
|
1009 | |
1188 | |
1010 | #else |
1189 | #else |
1011 | res = -1; |
1190 | res = -1; |
1012 | errno = ENOSYS; |
1191 | errno = ENOSYS; |
1013 | #endif |
1192 | #endif |
1014 | |
1193 | |
|
|
1194 | /* we assume sendfile can copy at least 128mb in one go */ |
|
|
1195 | if (res <= 128 * 1024 * 1024) |
|
|
1196 | { |
|
|
1197 | if (res > 0) |
|
|
1198 | written += res; |
|
|
1199 | |
|
|
1200 | if (written) |
|
|
1201 | return written; |
|
|
1202 | |
|
|
1203 | break; |
|
|
1204 | } |
|
|
1205 | else |
|
|
1206 | { |
|
|
1207 | /* if we requested more, then probably the kernel was lazy */ |
|
|
1208 | written += res; |
|
|
1209 | offset += res; |
|
|
1210 | count -= res; |
|
|
1211 | |
|
|
1212 | if (!count) |
|
|
1213 | return written; |
|
|
1214 | } |
|
|
1215 | } |
|
|
1216 | |
1015 | if (res < 0 |
1217 | if (res < 0 |
1016 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
1218 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
1017 | /* BSDs */ |
1219 | /* BSDs */ |
1018 | #ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */ |
1220 | #ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */ |
1019 | || errno == ENOTSUP |
1221 | || errno == ENOTSUP |
1020 | #endif |
1222 | #endif |
|
|
1223 | #ifdef EOPNOTSUPP /* windows */ |
1021 | || errno == EOPNOTSUPP /* BSDs */ |
1224 | || errno == EOPNOTSUPP /* BSDs */ |
|
|
1225 | #endif |
1022 | #if __solaris |
1226 | #if __solaris |
1023 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
1227 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
1024 | #endif |
1228 | #endif |
1025 | ) |
1229 | ) |
1026 | ) |
1230 | ) |
… | |
… | |
1030 | |
1234 | |
1031 | res = 0; |
1235 | res = 0; |
1032 | |
1236 | |
1033 | while (count) |
1237 | while (count) |
1034 | { |
1238 | { |
1035 | ssize_t cnt; |
1239 | eio_ssize_t cnt; |
1036 | |
1240 | |
1037 | cnt = pread (ifd, eio_buf, count > EIO_BUFSIZE ? EIO_BUFSIZE : count, offset); |
1241 | cnt = pread (ifd, eio_buf, count > EIO_BUFSIZE ? EIO_BUFSIZE : count, offset); |
1038 | |
1242 | |
1039 | if (cnt <= 0) |
1243 | if (cnt <= 0) |
1040 | { |
1244 | { |
… | |
… | |
1052 | |
1256 | |
1053 | offset += cnt; |
1257 | offset += cnt; |
1054 | res += cnt; |
1258 | res += cnt; |
1055 | count -= cnt; |
1259 | count -= cnt; |
1056 | } |
1260 | } |
|
|
1261 | |
|
|
1262 | FUBd; |
1057 | } |
1263 | } |
1058 | |
1264 | |
1059 | return res; |
1265 | return res; |
|
|
1266 | } |
|
|
1267 | |
|
|
1268 | #ifdef PAGESIZE |
|
|
1269 | # define eio_pagesize() PAGESIZE |
|
|
1270 | #else |
|
|
1271 | static intptr_t |
|
|
1272 | eio_pagesize (void) |
|
|
1273 | { |
|
|
1274 | static intptr_t page; |
|
|
1275 | |
|
|
1276 | if (!page) |
|
|
1277 | page = sysconf (_SC_PAGESIZE); |
|
|
1278 | |
|
|
1279 | return page; |
|
|
1280 | } |
|
|
1281 | #endif |
|
|
1282 | |
|
|
1283 | static void |
|
|
1284 | eio_page_align (void **addr, size_t *length) |
|
|
1285 | { |
|
|
1286 | intptr_t mask = eio_pagesize () - 1; |
|
|
1287 | |
|
|
1288 | /* round down addr */ |
|
|
1289 | intptr_t adj = mask & (intptr_t)*addr; |
|
|
1290 | |
|
|
1291 | *addr = (void *)((intptr_t)*addr - adj); |
|
|
1292 | *length += adj; |
|
|
1293 | |
|
|
1294 | /* round up length */ |
|
|
1295 | *length = (*length + mask) & ~mask; |
|
|
1296 | } |
|
|
1297 | |
|
|
1298 | #if !_POSIX_MEMLOCK |
|
|
1299 | # define eio__mlockall(a) EIO_ENOSYS () |
|
|
1300 | #else |
|
|
1301 | |
|
|
1302 | static int |
|
|
1303 | eio__mlockall (int flags) |
|
|
1304 | { |
|
|
1305 | #if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 |
|
|
1306 | extern int mallopt (int, int); |
|
|
1307 | mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */ |
|
|
1308 | #endif |
|
|
1309 | |
|
|
1310 | if (EIO_MCL_CURRENT != MCL_CURRENT |
|
|
1311 | || EIO_MCL_FUTURE != MCL_FUTURE) |
|
|
1312 | { |
|
|
1313 | flags = 0 |
|
|
1314 | | (flags & EIO_MCL_CURRENT ? MCL_CURRENT : 0) |
|
|
1315 | | (flags & EIO_MCL_FUTURE ? MCL_FUTURE : 0); |
|
|
1316 | } |
|
|
1317 | |
|
|
1318 | return mlockall (flags); |
|
|
1319 | } |
|
|
1320 | #endif |
|
|
1321 | |
|
|
1322 | #if !_POSIX_MEMLOCK_RANGE |
|
|
1323 | # define eio__mlock(a,b) EIO_ENOSYS () |
|
|
1324 | #else |
|
|
1325 | |
|
|
1326 | static int |
|
|
1327 | eio__mlock (void *addr, size_t length) |
|
|
1328 | { |
|
|
1329 | eio_page_align (&addr, &length); |
|
|
1330 | |
|
|
1331 | return mlock (addr, length); |
|
|
1332 | } |
|
|
1333 | |
|
|
1334 | #endif |
|
|
1335 | |
|
|
1336 | #if !(_POSIX_MAPPED_FILES && _POSIX_SYNCHRONIZED_IO) |
|
|
1337 | # define eio__msync(a,b,c) EIO_ENOSYS () |
|
|
1338 | #else |
|
|
1339 | |
|
|
1340 | static int |
|
|
1341 | eio__msync (void *mem, size_t len, int flags) |
|
|
1342 | { |
|
|
1343 | eio_page_align (&mem, &len); |
|
|
1344 | |
|
|
1345 | if (EIO_MS_ASYNC != MS_SYNC |
|
|
1346 | || EIO_MS_INVALIDATE != MS_INVALIDATE |
|
|
1347 | || EIO_MS_SYNC != MS_SYNC) |
|
|
1348 | { |
|
|
1349 | flags = 0 |
|
|
1350 | | (flags & EIO_MS_ASYNC ? MS_ASYNC : 0) |
|
|
1351 | | (flags & EIO_MS_INVALIDATE ? MS_INVALIDATE : 0) |
|
|
1352 | | (flags & EIO_MS_SYNC ? MS_SYNC : 0); |
|
|
1353 | } |
|
|
1354 | |
|
|
1355 | return msync (mem, len, flags); |
|
|
1356 | } |
|
|
1357 | |
|
|
1358 | #endif |
|
|
1359 | |
|
|
1360 | static int |
|
|
1361 | eio__mtouch (eio_req *req) |
|
|
1362 | { |
|
|
1363 | void *mem = req->ptr2; |
|
|
1364 | size_t len = req->size; |
|
|
1365 | int flags = req->int1; |
|
|
1366 | |
|
|
1367 | eio_page_align (&mem, &len); |
|
|
1368 | |
|
|
1369 | { |
|
|
1370 | intptr_t addr = (intptr_t)mem; |
|
|
1371 | intptr_t end = addr + len; |
|
|
1372 | intptr_t page = eio_pagesize (); |
|
|
1373 | |
|
|
1374 | if (addr < end) |
|
|
1375 | if (flags & EIO_MT_MODIFY) /* modify */ |
|
|
1376 | do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < len && !EIO_CANCELLED (req)); |
|
|
1377 | else |
|
|
1378 | do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < len && !EIO_CANCELLED (req)); |
|
|
1379 | } |
|
|
1380 | |
|
|
1381 | return 0; |
|
|
1382 | } |
|
|
1383 | |
|
|
1384 | /*****************************************************************************/ |
|
|
1385 | /* requests implemented outside eio_execute, because they are so large */ |
|
|
1386 | |
|
|
1387 | /* result will always end up in tmpbuf, there is always space for adding a 0-byte */ |
|
|
1388 | static int |
|
|
1389 | eio__realpath (struct tmpbuf *tmpbuf, eio_wd wd, const char *path) |
|
|
1390 | { |
|
|
1391 | const char *rel = path; |
|
|
1392 | char *res; |
|
|
1393 | char *tmp1, *tmp2; |
|
|
1394 | #if SYMLOOP_MAX > 32 |
|
|
1395 | int symlinks = SYMLOOP_MAX; |
|
|
1396 | #else |
|
|
1397 | int symlinks = 32; |
|
|
1398 | #endif |
|
|
1399 | |
|
|
1400 | errno = EINVAL; |
|
|
1401 | if (!rel) |
|
|
1402 | return -1; |
|
|
1403 | |
|
|
1404 | errno = ENOENT; |
|
|
1405 | if (!*rel) |
|
|
1406 | return -1; |
|
|
1407 | |
|
|
1408 | res = tmpbuf_get (tmpbuf, PATH_MAX * 3); |
|
|
1409 | tmp1 = res + PATH_MAX; |
|
|
1410 | tmp2 = tmp1 + PATH_MAX; |
|
|
1411 | |
|
|
1412 | #if 0 /* disabled, the musl way to do things is just too racy */ |
|
|
1413 | #if __linux && defined(O_NONBLOCK) && defined(O_NOATIME) |
|
|
1414 | /* on linux we may be able to ask the kernel */ |
|
|
1415 | { |
|
|
1416 | int fd = open (rel, O_RDONLY | O_NONBLOCK | O_NOCTTY | O_NOATIME); |
|
|
1417 | |
|
|
1418 | if (fd >= 0) |
|
|
1419 | { |
|
|
1420 | sprintf (tmp1, "/proc/self/fd/%d", fd); |
|
|
1421 | req->result = readlink (tmp1, res, PATH_MAX); |
|
|
1422 | close (fd); |
|
|
1423 | |
|
|
1424 | /* here we should probably stat the open file and the disk file, to make sure they still match */ |
|
|
1425 | |
|
|
1426 | if (req->result > 0) |
|
|
1427 | goto done; |
|
|
1428 | } |
|
|
1429 | else if (errno == ELOOP || errno == ENAMETOOLONG || errno == ENOENT || errno == ENOTDIR || errno == EIO) |
|
|
1430 | return; |
|
|
1431 | } |
|
|
1432 | #endif |
|
|
1433 | #endif |
|
|
1434 | |
|
|
1435 | if (*rel != '/') |
|
|
1436 | { |
|
|
1437 | int len; |
|
|
1438 | |
|
|
1439 | errno = ENOENT; |
|
|
1440 | if (wd == EIO_INVALID_WD) |
|
|
1441 | return -1; |
|
|
1442 | |
|
|
1443 | if (wd == EIO_CWD) |
|
|
1444 | { |
|
|
1445 | if (!getcwd (res, PATH_MAX)) |
|
|
1446 | return -1; |
|
|
1447 | |
|
|
1448 | len = strlen (res); |
|
|
1449 | } |
|
|
1450 | else |
|
|
1451 | memcpy (res, wd->str, len = wd->len); |
|
|
1452 | |
|
|
1453 | if (res [1]) /* only use if not / */ |
|
|
1454 | res += len; |
|
|
1455 | } |
|
|
1456 | |
|
|
1457 | while (*rel) |
|
|
1458 | { |
|
|
1459 | eio_ssize_t len, linklen; |
|
|
1460 | const char *beg = rel; |
|
|
1461 | |
|
|
1462 | while (*rel && *rel != '/') |
|
|
1463 | ++rel; |
|
|
1464 | |
|
|
1465 | len = rel - beg; |
|
|
1466 | |
|
|
1467 | if (!len) /* skip slashes */ |
|
|
1468 | { |
|
|
1469 | ++rel; |
|
|
1470 | continue; |
|
|
1471 | } |
|
|
1472 | |
|
|
1473 | if (beg [0] == '.') |
|
|
1474 | { |
|
|
1475 | if (len == 1) |
|
|
1476 | continue; /* . - nop */ |
|
|
1477 | |
|
|
1478 | if (beg [1] == '.' && len == 2) |
|
|
1479 | { |
|
|
1480 | /* .. - back up one component, if possible */ |
|
|
1481 | |
|
|
1482 | while (res != tmpbuf->ptr) |
|
|
1483 | if (*--res == '/') |
|
|
1484 | break; |
|
|
1485 | |
|
|
1486 | continue; |
|
|
1487 | } |
|
|
1488 | } |
|
|
1489 | |
|
|
1490 | errno = ENAMETOOLONG; |
|
|
1491 | if (res + 1 + len + 1 >= tmp1) |
|
|
1492 | return -1; |
|
|
1493 | |
|
|
1494 | /* copy one component */ |
|
|
1495 | *res = '/'; |
|
|
1496 | memcpy (res + 1, beg, len); |
|
|
1497 | |
|
|
1498 | /* zero-terminate, for readlink */ |
|
|
1499 | res [len + 1] = 0; |
|
|
1500 | |
|
|
1501 | /* now check if it's a symlink */ |
|
|
1502 | linklen = readlink (tmpbuf->ptr, tmp1, PATH_MAX); |
|
|
1503 | |
|
|
1504 | if (linklen < 0) |
|
|
1505 | { |
|
|
1506 | if (errno != EINVAL) |
|
|
1507 | return -1; |
|
|
1508 | |
|
|
1509 | /* it's a normal directory. hopefully */ |
|
|
1510 | res += len + 1; |
|
|
1511 | } |
|
|
1512 | else |
|
|
1513 | { |
|
|
1514 | /* yay, it was a symlink - build new path in tmp2 */ |
|
|
1515 | int rellen = strlen (rel); |
|
|
1516 | |
|
|
1517 | errno = ENAMETOOLONG; |
|
|
1518 | if (linklen + 1 + rellen >= PATH_MAX) |
|
|
1519 | return -1; |
|
|
1520 | |
|
|
1521 | errno = ELOOP; |
|
|
1522 | if (!--symlinks) |
|
|
1523 | return -1; |
|
|
1524 | |
|
|
1525 | if (*tmp1 == '/') |
|
|
1526 | res = tmpbuf->ptr; /* symlink resolves to an absolute path */ |
|
|
1527 | |
|
|
1528 | /* we need to be careful, as rel might point into tmp2 already */ |
|
|
1529 | memmove (tmp2 + linklen + 1, rel, rellen + 1); |
|
|
1530 | tmp2 [linklen] = '/'; |
|
|
1531 | memcpy (tmp2, tmp1, linklen); |
|
|
1532 | |
|
|
1533 | rel = tmp2; |
|
|
1534 | } |
|
|
1535 | } |
|
|
1536 | |
|
|
1537 | /* special case for the lone root path */ |
|
|
1538 | if (res == tmpbuf->ptr) |
|
|
1539 | *res++ = '/'; |
|
|
1540 | |
|
|
1541 | return res - (char *)tmpbuf->ptr; |
1060 | } |
1542 | } |
1061 | |
1543 | |
1062 | static signed char |
1544 | static signed char |
1063 | eio_dent_cmp (const eio_dirent *a, const eio_dirent *b) |
1545 | eio_dent_cmp (const eio_dirent *a, const eio_dirent *b) |
1064 | { |
1546 | { |
1065 | return a->score - b->score ? a->score - b->score /* works because our signed char is always 0..100 */ |
1547 | return a->score - b->score ? a->score - b->score /* works because our signed char is always 0..100 */ |
1066 | : a->inode < b->inode ? -1 : a->inode > b->inode ? 1 : 0; |
1548 | : a->inode < b->inode ? -1 |
|
|
1549 | : a->inode > b->inode ? 1 |
|
|
1550 | : 0; |
1067 | } |
1551 | } |
1068 | |
1552 | |
1069 | #define EIO_DENT_CMP(i,op,j) eio_dent_cmp (&i, &j) op 0 |
1553 | #define EIO_DENT_CMP(i,op,j) eio_dent_cmp (&i, &j) op 0 |
1070 | |
1554 | |
1071 | #define EIO_SORT_CUTOFF 30 /* quite high, but performs well on many filesystems */ |
1555 | #define EIO_SORT_CUTOFF 30 /* quite high, but performs well on many filesystems */ |
1072 | #define EIO_SORT_FAST 60 /* when to only use insertion sort */ |
1556 | #define EIO_SORT_FAST 60 /* when to only use insertion sort */ |
1073 | |
1557 | |
1074 | static void |
1558 | static void |
1075 | eio_dent_radix_sort (eio_dirent *dents, int size, signed char score_bits, ino_t inode_bits) |
1559 | eio_dent_radix_sort (eio_dirent *dents, int size, signed char score_bits, eio_ino_t inode_bits) |
1076 | { |
1560 | { |
1077 | unsigned char bits [9 + sizeof (ino_t) * 8]; |
1561 | unsigned char bits [9 + sizeof (eio_ino_t) * 8]; |
1078 | unsigned char *bit = bits; |
1562 | unsigned char *bit = bits; |
1079 | |
1563 | |
1080 | assert (CHAR_BIT == 8); |
1564 | assert (CHAR_BIT == 8); |
1081 | assert (sizeof (eio_dirent) * 8 < 256); |
1565 | assert (sizeof (eio_dirent) * 8 < 256); |
1082 | assert (offsetof (eio_dirent, inode)); /* we use 0 as sentinel */ |
1566 | assert (offsetof (eio_dirent, inode)); /* we use bit #0 as sentinel */ |
1083 | assert (offsetof (eio_dirent, score)); /* we use 0 as sentinel */ |
1567 | assert (offsetof (eio_dirent, score)); /* we use bit #0 as sentinel */ |
1084 | |
1568 | |
1085 | if (size <= EIO_SORT_FAST) |
1569 | if (size <= EIO_SORT_FAST) |
1086 | return; |
1570 | return; |
1087 | |
1571 | |
1088 | /* first prepare an array of bits to test in our radix sort */ |
1572 | /* first prepare an array of bits to test in our radix sort */ |
1089 | /* try to take endianness into account, as well as differences in ino_t sizes */ |
1573 | /* try to take endianness into account, as well as differences in eio_ino_t sizes */ |
1090 | /* inode_bits must contain all inodes ORed together */ |
1574 | /* inode_bits must contain all inodes ORed together */ |
1091 | /* which is used to skip bits that are 0 everywhere, which is very common */ |
1575 | /* which is used to skip bits that are 0 everywhere, which is very common */ |
1092 | { |
1576 | { |
1093 | ino_t endianness; |
1577 | eio_ino_t endianness; |
1094 | int i, j; |
1578 | int i, j; |
1095 | |
1579 | |
1096 | /* we store the byte offset of byte n into byte n of "endianness" */ |
1580 | /* we store the byte offset of byte n into byte n of "endianness" */ |
1097 | for (i = 0; i < sizeof (ino_t); ++i) |
1581 | for (i = 0; i < sizeof (eio_ino_t); ++i) |
1098 | ((unsigned char *)&endianness)[i] = i; |
1582 | ((unsigned char *)&endianness)[i] = i; |
1099 | |
1583 | |
1100 | *bit++ = 0; |
1584 | *bit++ = 0; |
1101 | |
1585 | |
1102 | for (i = 0; i < sizeof (ino_t); ++i) |
1586 | for (i = 0; i < sizeof (eio_ino_t); ++i) |
1103 | { |
1587 | { |
1104 | /* shifting off the byte offsets out of "endianness" */ |
1588 | /* shifting off the byte offsets out of "endianness" */ |
1105 | int offs = (offsetof (eio_dirent, inode) + (endianness & 0xff)) * 8; |
1589 | int offs = (offsetof (eio_dirent, inode) + (endianness & 0xff)) * 8; |
1106 | endianness >>= 8; |
1590 | endianness >>= 8; |
1107 | |
1591 | |
1108 | for (j = 0; j < 8; ++j) |
1592 | for (j = 0; j < 8; ++j) |
1109 | if (inode_bits & (((ino_t)1) << (i * 8 + j))) |
1593 | if (inode_bits & (((eio_ino_t)1) << (i * 8 + j))) |
1110 | *bit++ = offs + j; |
1594 | *bit++ = offs + j; |
1111 | } |
1595 | } |
1112 | |
1596 | |
1113 | for (j = 0; j < 8; ++j) |
1597 | for (j = 0; j < 8; ++j) |
1114 | if (score_bits & (1 << j)) |
1598 | if (score_bits & (1 << j)) |
1115 | *bit++ = offsetof (eio_dirent, score) * 8 + j; |
1599 | *bit++ = offsetof (eio_dirent, score) * 8 + j; |
1116 | } |
1600 | } |
1117 | |
1601 | |
1118 | /* now actually do the sorting (a variant of MSD radix sort) */ |
1602 | /* now actually do the sorting (a variant of MSD radix sort) */ |
1119 | { |
1603 | { |
1120 | eio_dirent *base_stk [9 + sizeof (ino_t) * 8], *base; |
1604 | eio_dirent *base_stk [9 + sizeof (eio_ino_t) * 8], *base; |
1121 | eio_dirent *end_stk [9 + sizeof (ino_t) * 8], *end; |
1605 | eio_dirent *end_stk [9 + sizeof (eio_ino_t) * 8], *end; |
1122 | unsigned char *bit_stk [9 + sizeof (ino_t) * 8]; |
1606 | unsigned char *bit_stk [9 + sizeof (eio_ino_t) * 8]; |
1123 | int stk_idx = 0; |
1607 | int stk_idx = 0; |
1124 | |
1608 | |
1125 | base_stk [stk_idx] = dents; |
1609 | base_stk [stk_idx] = dents; |
1126 | end_stk [stk_idx] = dents + size; |
1610 | end_stk [stk_idx] = dents + size; |
1127 | bit_stk [stk_idx] = bit - 1; |
1611 | bit_stk [stk_idx] = bit - 1; |
… | |
… | |
1206 | } |
1690 | } |
1207 | } |
1691 | } |
1208 | } |
1692 | } |
1209 | |
1693 | |
1210 | static void |
1694 | static void |
1211 | eio_dent_sort (eio_dirent *dents, int size, signed char score_bits, ino_t inode_bits) |
1695 | eio_dent_sort (eio_dirent *dents, int size, signed char score_bits, eio_ino_t inode_bits) |
1212 | { |
1696 | { |
1213 | if (size <= 1) |
1697 | if (size <= 1) |
1214 | return; /* our insertion sort relies on size > 0 */ |
1698 | return; /* our insertion sort relies on size > 0 */ |
1215 | |
1699 | |
1216 | /* first we use a radix sort, but only for dirs >= EIO_SORT_FAST */ |
1700 | /* first we use a radix sort, but only for dirs >= EIO_SORT_FAST */ |
… | |
… | |
1224 | |
1708 | |
1225 | /* read a full directory */ |
1709 | /* read a full directory */ |
1226 | static void |
1710 | static void |
1227 | eio__scandir (eio_req *req, etp_worker *self) |
1711 | eio__scandir (eio_req *req, etp_worker *self) |
1228 | { |
1712 | { |
1229 | DIR *dirp; |
|
|
1230 | EIO_STRUCT_DIRENT *entp; |
|
|
1231 | char *name, *names; |
1713 | char *name, *names; |
1232 | int namesalloc = 4096; |
1714 | int namesalloc = 4096 - sizeof (void *) * 4; |
1233 | int namesoffs = 0; |
1715 | int namesoffs = 0; |
1234 | int flags = req->int1; |
1716 | int flags = req->int1; |
1235 | eio_dirent *dents = 0; |
1717 | eio_dirent *dents = 0; |
1236 | int dentalloc = 128; |
1718 | int dentalloc = 128; |
1237 | int dentoffs = 0; |
1719 | int dentoffs = 0; |
1238 | ino_t inode_bits = 0; |
1720 | eio_ino_t inode_bits = 0; |
|
|
1721 | #ifdef _WIN32 |
|
|
1722 | HANDLE dirp; |
|
|
1723 | WIN32_FIND_DATA entp; |
|
|
1724 | #else |
|
|
1725 | DIR *dirp; |
|
|
1726 | EIO_STRUCT_DIRENT *entp; |
|
|
1727 | #endif |
1239 | |
1728 | |
1240 | req->result = -1; |
1729 | req->result = -1; |
1241 | |
1730 | |
1242 | if (!(flags & EIO_READDIR_DENTS)) |
1731 | if (!(flags & EIO_READDIR_DENTS)) |
1243 | flags &= ~(EIO_READDIR_DIRS_FIRST | EIO_READDIR_STAT_ORDER); |
1732 | flags &= ~(EIO_READDIR_DIRS_FIRST | EIO_READDIR_STAT_ORDER); |
1244 | |
1733 | |
1245 | X_LOCK (wrklock); |
1734 | #ifdef _WIN32 |
1246 | /* the corresponding closedir is in ETP_WORKER_CLEAR */ |
1735 | { |
|
|
1736 | int len = strlen ((const char *)req->ptr1); |
|
|
1737 | char *path = malloc (MAX_PATH); |
|
|
1738 | const char *fmt; |
|
|
1739 | const char *reqpath = wd_expand (&self->tmpbuf, req->wd, req->ptr1); |
|
|
1740 | |
|
|
1741 | if (!len) |
|
|
1742 | fmt = "./*"; |
|
|
1743 | else if (reqpath[len - 1] == '/' || reqpath[len - 1] == '\\') |
|
|
1744 | fmt = "%s*"; |
|
|
1745 | else |
|
|
1746 | fmt = "%s/*"; |
|
|
1747 | |
|
|
1748 | _snprintf (path, MAX_PATH, fmt, reqpath); |
|
|
1749 | dirp = FindFirstFile (path, &entp); |
|
|
1750 | free (path); |
|
|
1751 | |
|
|
1752 | if (dirp == INVALID_HANDLE_VALUE) |
|
|
1753 | { |
|
|
1754 | /* should steal _dosmaperr */ |
|
|
1755 | switch (GetLastError ()) |
|
|
1756 | { |
|
|
1757 | case ERROR_FILE_NOT_FOUND: |
|
|
1758 | req->result = 0; |
|
|
1759 | break; |
|
|
1760 | |
|
|
1761 | case ERROR_INVALID_NAME: |
|
|
1762 | case ERROR_PATH_NOT_FOUND: |
|
|
1763 | case ERROR_NO_MORE_FILES: |
|
|
1764 | errno = ENOENT; |
|
|
1765 | break; |
|
|
1766 | |
|
|
1767 | case ERROR_NOT_ENOUGH_MEMORY: |
|
|
1768 | errno = ENOMEM; |
|
|
1769 | break; |
|
|
1770 | |
|
|
1771 | default: |
|
|
1772 | errno = EINVAL; |
|
|
1773 | break; |
|
|
1774 | } |
|
|
1775 | |
|
|
1776 | return; |
|
|
1777 | } |
|
|
1778 | } |
|
|
1779 | #else |
|
|
1780 | #if HAVE_AT |
|
|
1781 | if (req->wd) |
|
|
1782 | { |
|
|
1783 | int fd = openat (WD2FD (req->wd), req->ptr1, O_CLOEXEC | O_SEARCH | O_DIRECTORY); |
|
|
1784 | |
|
|
1785 | if (fd < 0) |
|
|
1786 | return; |
|
|
1787 | |
|
|
1788 | dirp = fdopendir (fd); |
|
|
1789 | |
|
|
1790 | if (!dirp) |
|
|
1791 | close (fd); |
|
|
1792 | } |
|
|
1793 | else |
1247 | self->dirp = dirp = opendir (req->ptr1); |
1794 | dirp = opendir (req->ptr1); |
|
|
1795 | #else |
|
|
1796 | dirp = opendir (wd_expand (&self->tmpbuf, req->wd, req->ptr1)); |
|
|
1797 | #endif |
|
|
1798 | |
|
|
1799 | if (!dirp) |
|
|
1800 | return; |
|
|
1801 | #endif |
|
|
1802 | |
|
|
1803 | if (req->flags & EIO_FLAG_PTR1_FREE) |
|
|
1804 | free (req->ptr1); |
|
|
1805 | |
1248 | req->flags |= EIO_FLAG_PTR1_FREE | EIO_FLAG_PTR2_FREE; |
1806 | req->flags |= EIO_FLAG_PTR1_FREE | EIO_FLAG_PTR2_FREE; |
1249 | req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0; |
1807 | req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0; |
1250 | req->ptr2 = names = malloc (namesalloc); |
1808 | req->ptr2 = names = malloc (namesalloc); |
1251 | X_UNLOCK (wrklock); |
|
|
1252 | |
1809 | |
1253 | if (dirp && names && (!flags || dents)) |
1810 | if (!names || (flags && !dents)) |
|
|
1811 | return; |
|
|
1812 | |
1254 | for (;;) |
1813 | for (;;) |
1255 | { |
1814 | { |
|
|
1815 | int done; |
|
|
1816 | |
|
|
1817 | #ifdef _WIN32 |
|
|
1818 | done = !dirp; |
|
|
1819 | #else |
1256 | errno = 0; |
1820 | errno = 0; |
1257 | entp = readdir (dirp); |
1821 | entp = readdir (dirp); |
|
|
1822 | done = !entp; |
|
|
1823 | #endif |
1258 | |
1824 | |
1259 | if (!entp) |
1825 | if (done) |
1260 | { |
1826 | { |
|
|
1827 | #ifndef _WIN32 |
|
|
1828 | int old_errno = errno; |
|
|
1829 | closedir (dirp); |
|
|
1830 | errno = old_errno; |
|
|
1831 | |
1261 | if (errno) |
1832 | if (errno) |
1262 | break; |
1833 | break; |
|
|
1834 | #endif |
1263 | |
1835 | |
1264 | /* sort etc. */ |
1836 | /* sort etc. */ |
1265 | req->int1 = flags; |
1837 | req->int1 = flags; |
1266 | req->result = dentoffs; |
1838 | req->result = dentoffs; |
1267 | |
1839 | |
1268 | if (flags & EIO_READDIR_STAT_ORDER) |
1840 | if (flags & EIO_READDIR_STAT_ORDER) |
1269 | eio_dent_sort (dents, dentoffs, 0, inode_bits); /* sort by inode exclusively */ |
1841 | eio_dent_sort (dents, dentoffs, flags & EIO_READDIR_DIRS_FIRST ? 7 : 0, inode_bits); |
1270 | else if (flags & EIO_READDIR_DIRS_FIRST) |
1842 | else if (flags & EIO_READDIR_DIRS_FIRST) |
1271 | if (flags & EIO_READDIR_FOUND_UNKNOWN) |
1843 | if (flags & EIO_READDIR_FOUND_UNKNOWN) |
1272 | eio_dent_sort (dents, dentoffs, 7, inode_bits); /* sort by score and inode */ |
1844 | eio_dent_sort (dents, dentoffs, 7, inode_bits); /* sort by score and inode */ |
1273 | else |
1845 | else |
|
|
1846 | { |
|
|
1847 | /* in this case, all is known, and we just put dirs first and sort them */ |
|
|
1848 | eio_dirent *oth = dents + dentoffs; |
|
|
1849 | eio_dirent *dir = dents; |
|
|
1850 | |
|
|
1851 | /* now partition dirs to the front, and non-dirs to the back */ |
|
|
1852 | /* by walking from both sides and swapping if necessary */ |
|
|
1853 | while (oth > dir) |
|
|
1854 | { |
|
|
1855 | if (dir->type == EIO_DT_DIR) |
|
|
1856 | ++dir; |
|
|
1857 | else if ((--oth)->type == EIO_DT_DIR) |
|
|
1858 | { |
|
|
1859 | eio_dirent tmp = *dir; *dir = *oth; *oth = tmp; |
|
|
1860 | |
|
|
1861 | ++dir; |
|
|
1862 | } |
|
|
1863 | } |
|
|
1864 | |
|
|
1865 | /* now sort the dirs only (dirs all have the same score) */ |
|
|
1866 | eio_dent_sort (dents, dir - dents, 0, inode_bits); |
|
|
1867 | } |
|
|
1868 | |
|
|
1869 | break; |
|
|
1870 | } |
|
|
1871 | |
|
|
1872 | /* now add the entry to our list(s) */ |
|
|
1873 | name = D_NAME (entp); |
|
|
1874 | |
|
|
1875 | /* skip . and .. entries */ |
|
|
1876 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1877 | { |
|
|
1878 | int len = D_NAMLEN (entp) + 1; |
|
|
1879 | |
|
|
1880 | while (ecb_expect_false (namesoffs + len > namesalloc)) |
|
|
1881 | { |
|
|
1882 | namesalloc *= 2; |
|
|
1883 | req->ptr2 = names = realloc (names, namesalloc); |
|
|
1884 | |
|
|
1885 | if (!names) |
|
|
1886 | break; |
|
|
1887 | } |
|
|
1888 | |
|
|
1889 | memcpy (names + namesoffs, name, len); |
|
|
1890 | |
|
|
1891 | if (dents) |
|
|
1892 | { |
|
|
1893 | struct eio_dirent *ent; |
|
|
1894 | |
|
|
1895 | if (ecb_expect_false (dentoffs == dentalloc)) |
1274 | { |
1896 | { |
1275 | /* in this case, all is known, and we just put dirs first and sort them */ |
1897 | dentalloc *= 2; |
|
|
1898 | req->ptr1 = dents = realloc (dents, dentalloc * sizeof (eio_dirent)); |
|
|
1899 | |
|
|
1900 | if (!dents) |
|
|
1901 | break; |
|
|
1902 | } |
|
|
1903 | |
1276 | eio_dirent *oth = dents + dentoffs; |
1904 | ent = dents + dentoffs; |
1277 | eio_dirent *dir = dents; |
|
|
1278 | |
1905 | |
1279 | /* now partition dirs to the front, and non-dirs to the back */ |
1906 | ent->nameofs = namesoffs; /* rather dirtily we store the offset in the pointer */ |
1280 | /* by walking from both sides and swapping if necessary */ |
1907 | ent->namelen = len - 1; |
1281 | /* also clear score, so it doesn't influence sorting */ |
1908 | ent->inode = D_INO (entp); |
1282 | while (oth > dir) |
1909 | |
|
|
1910 | inode_bits |= ent->inode; |
|
|
1911 | |
|
|
1912 | switch (D_TYPE (entp)) |
|
|
1913 | { |
|
|
1914 | default: |
|
|
1915 | ent->type = EIO_DT_UNKNOWN; |
|
|
1916 | flags |= EIO_READDIR_FOUND_UNKNOWN; |
|
|
1917 | break; |
|
|
1918 | |
|
|
1919 | #ifdef DT_FIFO |
|
|
1920 | case DT_FIFO: ent->type = EIO_DT_FIFO; break; |
|
|
1921 | #endif |
|
|
1922 | #ifdef DT_CHR |
|
|
1923 | case DT_CHR: ent->type = EIO_DT_CHR; break; |
|
|
1924 | #endif |
|
|
1925 | #ifdef DT_MPC |
|
|
1926 | case DT_MPC: ent->type = EIO_DT_MPC; break; |
|
|
1927 | #endif |
|
|
1928 | #ifdef DT_DIR |
|
|
1929 | case DT_DIR: ent->type = EIO_DT_DIR; break; |
|
|
1930 | #endif |
|
|
1931 | #ifdef DT_NAM |
|
|
1932 | case DT_NAM: ent->type = EIO_DT_NAM; break; |
|
|
1933 | #endif |
|
|
1934 | #ifdef DT_BLK |
|
|
1935 | case DT_BLK: ent->type = EIO_DT_BLK; break; |
|
|
1936 | #endif |
|
|
1937 | #ifdef DT_MPB |
|
|
1938 | case DT_MPB: ent->type = EIO_DT_MPB; break; |
|
|
1939 | #endif |
|
|
1940 | #ifdef DT_REG |
|
|
1941 | case DT_REG: ent->type = EIO_DT_REG; break; |
|
|
1942 | #endif |
|
|
1943 | #ifdef DT_NWK |
|
|
1944 | case DT_NWK: ent->type = EIO_DT_NWK; break; |
|
|
1945 | #endif |
|
|
1946 | #ifdef DT_CMP |
|
|
1947 | case DT_CMP: ent->type = EIO_DT_CMP; break; |
|
|
1948 | #endif |
|
|
1949 | #ifdef DT_LNK |
|
|
1950 | case DT_LNK: ent->type = EIO_DT_LNK; break; |
|
|
1951 | #endif |
|
|
1952 | #ifdef DT_SOCK |
|
|
1953 | case DT_SOCK: ent->type = EIO_DT_SOCK; break; |
|
|
1954 | #endif |
|
|
1955 | #ifdef DT_DOOR |
|
|
1956 | case DT_DOOR: ent->type = EIO_DT_DOOR; break; |
|
|
1957 | #endif |
|
|
1958 | #ifdef DT_WHT |
|
|
1959 | case DT_WHT: ent->type = EIO_DT_WHT; break; |
|
|
1960 | #endif |
|
|
1961 | } |
|
|
1962 | |
|
|
1963 | ent->score = 7; |
|
|
1964 | |
|
|
1965 | if (flags & EIO_READDIR_DIRS_FIRST) |
|
|
1966 | { |
|
|
1967 | if (ent->type == EIO_DT_UNKNOWN) |
1283 | { |
1968 | { |
1284 | if (dir->type == EIO_DT_DIR) |
1969 | if (*name == '.') /* leading dots are likely directories, and, in any case, rare */ |
1285 | ++dir; |
1970 | ent->score = 1; |
1286 | else if ((--oth)->type == EIO_DT_DIR) |
1971 | else if (!strchr (name, '.')) /* absence of dots indicate likely dirs */ |
1287 | { |
1972 | ent->score = len <= 2 ? 4 - len : len <= 4 ? 4 : len <= 7 ? 5 : 6; /* shorter == more likely dir, but avoid too many classes */ |
1288 | eio_dirent tmp = *dir; *dir = *oth; *oth = tmp; |
|
|
1289 | |
|
|
1290 | ++dir; |
|
|
1291 | } |
|
|
1292 | } |
1973 | } |
1293 | |
1974 | else if (ent->type == EIO_DT_DIR) |
1294 | /* now sort the dirs only */ |
1975 | ent->score = 0; |
1295 | eio_dent_sort (dents, dir - dents, 0, inode_bits); |
|
|
1296 | } |
1976 | } |
1297 | |
|
|
1298 | break; |
|
|
1299 | } |
|
|
1300 | |
|
|
1301 | /* now add the entry to our list(s) */ |
|
|
1302 | name = entp->d_name; |
|
|
1303 | |
|
|
1304 | /* skip . and .. entries */ |
|
|
1305 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1306 | { |
|
|
1307 | int len = D_NAMLEN (entp) + 1; |
|
|
1308 | |
|
|
1309 | while (expect_false (namesoffs + len > namesalloc)) |
|
|
1310 | { |
|
|
1311 | namesalloc *= 2; |
|
|
1312 | X_LOCK (wrklock); |
|
|
1313 | req->ptr2 = names = realloc (names, namesalloc); |
|
|
1314 | X_UNLOCK (wrklock); |
|
|
1315 | |
|
|
1316 | if (!names) |
|
|
1317 | break; |
|
|
1318 | } |
1977 | } |
1319 | |
1978 | |
1320 | memcpy (names + namesoffs, name, len); |
|
|
1321 | |
|
|
1322 | if (dents) |
|
|
1323 | { |
|
|
1324 | struct eio_dirent *ent; |
|
|
1325 | |
|
|
1326 | if (expect_false (dentoffs == dentalloc)) |
|
|
1327 | { |
|
|
1328 | dentalloc *= 2; |
|
|
1329 | X_LOCK (wrklock); |
|
|
1330 | req->ptr1 = dents = realloc (dents, dentalloc * sizeof (eio_dirent)); |
|
|
1331 | X_UNLOCK (wrklock); |
|
|
1332 | |
|
|
1333 | if (!dents) |
|
|
1334 | break; |
|
|
1335 | } |
|
|
1336 | |
|
|
1337 | ent = dents + dentoffs; |
|
|
1338 | |
|
|
1339 | ent->nameofs = namesoffs; /* rather dirtily we store the offset in the pointer */ |
|
|
1340 | ent->namelen = len - 1; |
|
|
1341 | ent->inode = D_INO (entp); |
|
|
1342 | |
|
|
1343 | inode_bits |= ent->inode; |
|
|
1344 | |
|
|
1345 | switch (D_TYPE (entp)) |
|
|
1346 | { |
|
|
1347 | default: |
|
|
1348 | ent->type = EIO_DT_UNKNOWN; |
|
|
1349 | flags |= EIO_READDIR_FOUND_UNKNOWN; |
|
|
1350 | break; |
|
|
1351 | |
|
|
1352 | #ifdef DT_FIFO |
|
|
1353 | case DT_FIFO: ent->type = EIO_DT_FIFO; break; |
|
|
1354 | #endif |
|
|
1355 | #ifdef DT_CHR |
|
|
1356 | case DT_CHR: ent->type = EIO_DT_CHR; break; |
|
|
1357 | #endif |
|
|
1358 | #ifdef DT_MPC |
|
|
1359 | case DT_MPC: ent->type = EIO_DT_MPC; break; |
|
|
1360 | #endif |
|
|
1361 | #ifdef DT_DIR |
|
|
1362 | case DT_DIR: ent->type = EIO_DT_DIR; break; |
|
|
1363 | #endif |
|
|
1364 | #ifdef DT_NAM |
|
|
1365 | case DT_NAM: ent->type = EIO_DT_NAM; break; |
|
|
1366 | #endif |
|
|
1367 | #ifdef DT_BLK |
|
|
1368 | case DT_BLK: ent->type = EIO_DT_BLK; break; |
|
|
1369 | #endif |
|
|
1370 | #ifdef DT_MPB |
|
|
1371 | case DT_MPB: ent->type = EIO_DT_MPB; break; |
|
|
1372 | #endif |
|
|
1373 | #ifdef DT_REG |
|
|
1374 | case DT_REG: ent->type = EIO_DT_REG; break; |
|
|
1375 | #endif |
|
|
1376 | #ifdef DT_NWK |
|
|
1377 | case DT_NWK: ent->type = EIO_DT_NWK; break; |
|
|
1378 | #endif |
|
|
1379 | #ifdef DT_CMP |
|
|
1380 | case DT_CMP: ent->type = EIO_DT_CMP; break; |
|
|
1381 | #endif |
|
|
1382 | #ifdef DT_LNK |
|
|
1383 | case DT_LNK: ent->type = EIO_DT_LNK; break; |
|
|
1384 | #endif |
|
|
1385 | #ifdef DT_SOCK |
|
|
1386 | case DT_SOCK: ent->type = EIO_DT_SOCK; break; |
|
|
1387 | #endif |
|
|
1388 | #ifdef DT_DOOR |
|
|
1389 | case DT_DOOR: ent->type = EIO_DT_DOOR; break; |
|
|
1390 | #endif |
|
|
1391 | #ifdef DT_WHT |
|
|
1392 | case DT_WHT: ent->type = EIO_DT_WHT; break; |
|
|
1393 | #endif |
|
|
1394 | } |
|
|
1395 | |
|
|
1396 | ent->score = 7; |
|
|
1397 | |
|
|
1398 | if (flags & EIO_READDIR_DIRS_FIRST) |
|
|
1399 | { |
|
|
1400 | if (ent->type == EIO_DT_UNKNOWN) |
|
|
1401 | { |
|
|
1402 | if (*name == '.') /* leading dots are likely directories, and, in any case, rare */ |
|
|
1403 | ent->score = 1; |
|
|
1404 | else if (!strchr (name, '.')) /* absense of dots indicate likely dirs */ |
|
|
1405 | ent->score = len <= 2 ? 4 - len : len <= 4 ? 4 : len <= 7 ? 5 : 6; /* shorter == more likely dir, but avoid too many classes */ |
|
|
1406 | } |
|
|
1407 | else if (ent->type == EIO_DT_DIR) |
|
|
1408 | ent->score = 0; |
|
|
1409 | } |
|
|
1410 | } |
|
|
1411 | |
|
|
1412 | namesoffs += len; |
1979 | namesoffs += len; |
1413 | ++dentoffs; |
1980 | ++dentoffs; |
1414 | } |
1981 | } |
1415 | |
1982 | |
1416 | if (EIO_CANCELLED (req)) |
1983 | if (EIO_CANCELLED (req)) |
1417 | { |
1984 | { |
1418 | errno = ECANCELED; |
1985 | errno = ECANCELED; |
1419 | break; |
1986 | break; |
1420 | } |
1987 | } |
|
|
1988 | |
|
|
1989 | #ifdef _WIN32 |
|
|
1990 | if (!FindNextFile (dirp, &entp)) |
|
|
1991 | { |
|
|
1992 | FindClose (dirp); |
|
|
1993 | dirp = 0; |
1421 | } |
1994 | } |
|
|
1995 | #endif |
|
|
1996 | } |
1422 | } |
1997 | } |
1423 | |
1998 | |
1424 | #ifdef PAGESIZE |
1999 | /*****************************************************************************/ |
1425 | # define eio_pagesize() PAGESIZE |
2000 | /* working directory stuff */ |
1426 | #else |
2001 | /* various deficiencies in the posix 2008 api force us to */ |
1427 | static intptr_t |
2002 | /* keep the absolute path in string form at all times */ |
1428 | eio_pagesize (void) |
2003 | /* fuck yeah. */ |
1429 | { |
|
|
1430 | static intptr_t page; |
|
|
1431 | |
2004 | |
1432 | if (!page) |
2005 | #if !HAVE_AT |
1433 | page = sysconf (_SC_PAGESIZE); |
|
|
1434 | |
2006 | |
|
|
2007 | /* a bit like realpath, but usually faster because it doesn'T have to return */ |
|
|
2008 | /* an absolute or canonical path */ |
|
|
2009 | static const char * |
|
|
2010 | wd_expand (struct tmpbuf *tmpbuf, eio_wd wd, const char *path) |
|
|
2011 | { |
|
|
2012 | if (!wd || *path == '/') |
|
|
2013 | return path; |
|
|
2014 | |
|
|
2015 | if (path [0] == '.' && !path [1]) |
|
|
2016 | return wd->str; |
|
|
2017 | |
|
|
2018 | { |
|
|
2019 | int l1 = wd->len; |
|
|
2020 | int l2 = strlen (path); |
|
|
2021 | |
|
|
2022 | char *res = tmpbuf_get (tmpbuf, l1 + l2 + 2); |
|
|
2023 | |
|
|
2024 | memcpy (res, wd->str, l1); |
|
|
2025 | res [l1] = '/'; |
|
|
2026 | memcpy (res + l1 + 1, path, l2 + 1); |
|
|
2027 | |
|
|
2028 | return res; |
|
|
2029 | } |
|
|
2030 | } |
|
|
2031 | |
|
|
2032 | #endif |
|
|
2033 | |
|
|
2034 | static eio_wd |
|
|
2035 | eio__wd_open_sync (struct tmpbuf *tmpbuf, eio_wd wd, const char *path) |
|
|
2036 | { |
|
|
2037 | int fd; |
|
|
2038 | eio_wd res; |
|
|
2039 | int len = eio__realpath (tmpbuf, wd, path); |
|
|
2040 | |
|
|
2041 | if (len < 0) |
|
|
2042 | return EIO_INVALID_WD; |
|
|
2043 | |
|
|
2044 | #if HAVE_AT |
|
|
2045 | fd = openat (WD2FD (wd), path, O_CLOEXEC | O_SEARCH | O_DIRECTORY); |
|
|
2046 | |
|
|
2047 | if (fd < 0) |
|
|
2048 | return EIO_INVALID_WD; |
|
|
2049 | #endif |
|
|
2050 | |
|
|
2051 | res = malloc (sizeof (*res) + len); /* one extra 0-byte */ |
|
|
2052 | |
|
|
2053 | #if HAVE_AT |
|
|
2054 | res->fd = fd; |
|
|
2055 | #endif |
|
|
2056 | |
|
|
2057 | res->len = len; |
|
|
2058 | memcpy (res->str, tmpbuf->ptr, len); |
|
|
2059 | res->str [len] = 0; |
|
|
2060 | |
1435 | return page; |
2061 | return res; |
1436 | } |
2062 | } |
1437 | #endif |
|
|
1438 | |
2063 | |
1439 | static void |
2064 | eio_wd |
1440 | eio_page_align (void **addr, size_t *length) |
2065 | eio_wd_open_sync (eio_wd wd, const char *path) |
1441 | { |
2066 | { |
1442 | intptr_t mask = eio_pagesize () - 1; |
2067 | struct tmpbuf tmpbuf = { 0 }; |
|
|
2068 | wd = eio__wd_open_sync (&tmpbuf, wd, path); |
|
|
2069 | free (tmpbuf.ptr); |
1443 | |
2070 | |
1444 | /* round down addr */ |
2071 | return wd; |
1445 | intptr_t adj = mask & (intptr_t)*addr; |
|
|
1446 | |
|
|
1447 | *addr = (void *)((intptr_t)*addr - adj); |
|
|
1448 | *length += adj; |
|
|
1449 | |
|
|
1450 | /* round up length */ |
|
|
1451 | *length = (*length + mask) & ~mask; |
|
|
1452 | } |
2072 | } |
1453 | |
2073 | |
1454 | #if !_POSIX_MEMLOCK |
2074 | void |
1455 | # define eio__mlockall(a) ((errno = ENOSYS), -1) |
2075 | eio_wd_close_sync (eio_wd wd) |
1456 | #else |
2076 | { |
|
|
2077 | if (wd != EIO_INVALID_WD && wd != EIO_CWD) |
|
|
2078 | { |
|
|
2079 | #if HAVE_AT |
|
|
2080 | close (wd->fd); |
|
|
2081 | #endif |
|
|
2082 | free (wd); |
|
|
2083 | } |
|
|
2084 | } |
|
|
2085 | |
|
|
2086 | #if HAVE_AT |
|
|
2087 | |
|
|
2088 | /* they forgot these */ |
1457 | |
2089 | |
1458 | static int |
2090 | static int |
1459 | eio__mlockall (int flags) |
2091 | eio__truncateat (int dirfd, const char *path, off_t length) |
1460 | { |
2092 | { |
1461 | #if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 |
2093 | int fd = openat (dirfd, path, O_WRONLY | O_CLOEXEC); |
1462 | extern int mallopt (int, int); |
2094 | int res; |
1463 | mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */ |
|
|
1464 | #endif |
|
|
1465 | |
2095 | |
1466 | if (EIO_MCL_CURRENT != MCL_CURRENT |
2096 | if (fd < 0) |
1467 | || EIO_MCL_FUTURE != MCL_FUTURE) |
2097 | return fd; |
1468 | { |
|
|
1469 | flags = 0 |
|
|
1470 | | (flags & EIO_MCL_CURRENT ? MCL_CURRENT : 0) |
|
|
1471 | | (flags & EIO_MCL_FUTURE ? MCL_FUTURE : 0); |
|
|
1472 | } |
|
|
1473 | |
2098 | |
1474 | return mlockall (flags); |
2099 | res = ftruncate (fd, length); |
|
|
2100 | close (fd); |
|
|
2101 | return res; |
1475 | } |
2102 | } |
1476 | #endif |
|
|
1477 | |
|
|
1478 | #if !_POSIX_MEMLOCK_RANGE |
|
|
1479 | # define eio__mlock(a,b) ((errno = ENOSYS), -1) |
|
|
1480 | #else |
|
|
1481 | |
2103 | |
1482 | static int |
2104 | static int |
1483 | eio__mlock (void *addr, size_t length) |
2105 | eio__statvfsat (int dirfd, const char *path, struct statvfs *buf) |
1484 | { |
2106 | { |
1485 | eio_page_align (&addr, &length); |
2107 | int fd = openat (dirfd, path, O_SEARCH | O_CLOEXEC); |
|
|
2108 | int res; |
1486 | |
2109 | |
1487 | return mlock (addr, length); |
2110 | if (fd < 0) |
1488 | } |
2111 | return fd; |
1489 | |
2112 | |
1490 | #endif |
2113 | res = fstatvfs (fd, buf); |
1491 | |
2114 | close (fd); |
1492 | #if !(_POSIX_MAPPED_FILES && _POSIX_SYNCHRONIZED_IO) |
|
|
1493 | # define eio__msync(a,b,c) ((errno = ENOSYS), -1) |
|
|
1494 | #else |
|
|
1495 | |
|
|
1496 | int |
|
|
1497 | eio__msync (void *mem, size_t len, int flags) |
|
|
1498 | { |
|
|
1499 | eio_page_align (&mem, &len); |
|
|
1500 | |
|
|
1501 | if (EIO_MS_ASYNC != MS_SYNC |
|
|
1502 | || EIO_MS_INVALIDATE != MS_INVALIDATE |
|
|
1503 | || EIO_MS_SYNC != MS_SYNC) |
|
|
1504 | { |
|
|
1505 | flags = 0 |
|
|
1506 | | (flags & EIO_MS_ASYNC ? MS_ASYNC : 0) |
|
|
1507 | | (flags & EIO_MS_INVALIDATE ? MS_INVALIDATE : 0) |
|
|
1508 | | (flags & EIO_MS_SYNC ? MS_SYNC : 0); |
|
|
1509 | } |
|
|
1510 | |
|
|
1511 | return msync (mem, len, flags); |
|
|
1512 | } |
|
|
1513 | |
|
|
1514 | #endif |
|
|
1515 | |
|
|
1516 | int |
|
|
1517 | eio__mtouch (void *mem, size_t len, int flags) |
|
|
1518 | { |
|
|
1519 | eio_page_align (&mem, &len); |
|
|
1520 | |
|
|
1521 | { |
|
|
1522 | intptr_t addr = (intptr_t)mem; |
|
|
1523 | intptr_t end = addr + len; |
|
|
1524 | intptr_t page = eio_pagesize (); |
|
|
1525 | |
|
|
1526 | if (addr < end) |
|
|
1527 | if (flags & EIO_MT_MODIFY) /* modify */ |
|
|
1528 | do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < len); |
|
|
1529 | else |
|
|
1530 | do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < len); |
|
|
1531 | } |
|
|
1532 | |
|
|
1533 | return 0; |
2115 | return res; |
|
|
2116 | |
1534 | } |
2117 | } |
|
|
2118 | |
|
|
2119 | #endif |
1535 | |
2120 | |
1536 | /*****************************************************************************/ |
2121 | /*****************************************************************************/ |
1537 | |
2122 | |
1538 | #define ALLOC(len) \ |
2123 | #define ALLOC(len) \ |
1539 | if (!req->ptr2) \ |
2124 | if (!req->ptr2) \ |
… | |
… | |
1548 | req->result = -1; \ |
2133 | req->result = -1; \ |
1549 | break; \ |
2134 | break; \ |
1550 | } \ |
2135 | } \ |
1551 | } |
2136 | } |
1552 | |
2137 | |
|
|
2138 | static void ecb_noinline ecb_cold |
|
|
2139 | etp_proc_init (void) |
|
|
2140 | { |
|
|
2141 | #if HAVE_PRCTL_SET_NAME |
|
|
2142 | /* provide a more sensible "thread name" */ |
|
|
2143 | char name[16 + 1]; |
|
|
2144 | const int namelen = sizeof (name) - 1; |
|
|
2145 | int len; |
|
|
2146 | |
|
|
2147 | prctl (PR_GET_NAME, (unsigned long)name, 0, 0, 0); |
|
|
2148 | name [namelen] = 0; |
|
|
2149 | len = strlen (name); |
|
|
2150 | strcpy (name + (len <= namelen - 4 ? len : namelen - 4), "/eio"); |
|
|
2151 | prctl (PR_SET_NAME, (unsigned long)name, 0, 0, 0); |
|
|
2152 | #endif |
|
|
2153 | } |
|
|
2154 | |
1553 | X_THREAD_PROC (etp_proc) |
2155 | X_THREAD_PROC (etp_proc) |
1554 | { |
2156 | { |
1555 | ETP_REQ *req; |
2157 | ETP_REQ *req; |
1556 | struct timespec ts; |
2158 | struct timespec ts; |
1557 | etp_worker *self = (etp_worker *)thr_arg; |
2159 | etp_worker *self = (etp_worker *)thr_arg; |
1558 | |
2160 | |
|
|
2161 | etp_proc_init (); |
|
|
2162 | |
1559 | /* try to distribute timeouts somewhat randomly */ |
2163 | /* try to distribute timeouts somewhat evenly */ |
1560 | ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL); |
2164 | ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL); |
1561 | |
2165 | |
1562 | for (;;) |
2166 | for (;;) |
1563 | { |
2167 | { |
|
|
2168 | ts.tv_sec = 0; |
|
|
2169 | |
1564 | X_LOCK (reqlock); |
2170 | X_LOCK (reqlock); |
1565 | |
2171 | |
1566 | for (;;) |
2172 | for (;;) |
1567 | { |
2173 | { |
1568 | self->req = req = reqq_shift (&req_queue); |
2174 | req = reqq_shift (&req_queue); |
1569 | |
2175 | |
1570 | if (req) |
2176 | if (req) |
1571 | break; |
2177 | break; |
1572 | |
2178 | |
|
|
2179 | if (ts.tv_sec == 1) /* no request, but timeout detected, let's quit */ |
|
|
2180 | { |
|
|
2181 | X_UNLOCK (reqlock); |
|
|
2182 | X_LOCK (wrklock); |
|
|
2183 | --started; |
|
|
2184 | X_UNLOCK (wrklock); |
|
|
2185 | goto quit; |
|
|
2186 | } |
|
|
2187 | |
1573 | ++idle; |
2188 | ++idle; |
1574 | |
2189 | |
1575 | ts.tv_sec = time (0) + idle_timeout; |
2190 | if (idle <= max_idle) |
1576 | if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) == ETIMEDOUT) |
2191 | /* we are allowed to idle, so do so without any timeout */ |
|
|
2192 | X_COND_WAIT (reqwait, reqlock); |
|
|
2193 | else |
1577 | { |
2194 | { |
1578 | if (idle > max_idle) |
2195 | /* initialise timeout once */ |
1579 | { |
2196 | if (!ts.tv_sec) |
1580 | --idle; |
2197 | ts.tv_sec = time (0) + idle_timeout; |
1581 | X_UNLOCK (reqlock); |
|
|
1582 | X_LOCK (wrklock); |
|
|
1583 | --started; |
|
|
1584 | X_UNLOCK (wrklock); |
|
|
1585 | goto quit; |
|
|
1586 | } |
|
|
1587 | |
2198 | |
1588 | /* we are allowed to idle, so do so without any timeout */ |
|
|
1589 | X_COND_WAIT (reqwait, reqlock); |
2199 | if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) == ETIMEDOUT) |
|
|
2200 | ts.tv_sec = 1; /* assuming this is not a value computed above.,.. */ |
1590 | } |
2201 | } |
1591 | |
2202 | |
1592 | --idle; |
2203 | --idle; |
1593 | } |
2204 | } |
1594 | |
2205 | |
… | |
… | |
1597 | X_UNLOCK (reqlock); |
2208 | X_UNLOCK (reqlock); |
1598 | |
2209 | |
1599 | if (req->type < 0) |
2210 | if (req->type < 0) |
1600 | goto quit; |
2211 | goto quit; |
1601 | |
2212 | |
1602 | if (!EIO_CANCELLED (req)) |
|
|
1603 | ETP_EXECUTE (self, req); |
2213 | ETP_EXECUTE (self, req); |
1604 | |
2214 | |
1605 | X_LOCK (reslock); |
2215 | X_LOCK (reslock); |
1606 | |
2216 | |
1607 | ++npending; |
2217 | ++npending; |
1608 | |
2218 | |
1609 | if (!reqq_push (&res_queue, req) && want_poll_cb) |
2219 | if (!reqq_push (&res_queue, req) && want_poll_cb) |
1610 | want_poll_cb (); |
2220 | want_poll_cb (); |
1611 | |
2221 | |
1612 | self->req = 0; |
|
|
1613 | etp_worker_clear (self); |
2222 | etp_worker_clear (self); |
1614 | |
2223 | |
1615 | X_UNLOCK (reslock); |
2224 | X_UNLOCK (reslock); |
1616 | } |
2225 | } |
1617 | |
2226 | |
1618 | quit: |
2227 | quit: |
|
|
2228 | free (req); |
|
|
2229 | |
1619 | X_LOCK (wrklock); |
2230 | X_LOCK (wrklock); |
1620 | etp_worker_free (self); |
2231 | etp_worker_free (self); |
1621 | X_UNLOCK (wrklock); |
2232 | X_UNLOCK (wrklock); |
1622 | |
2233 | |
1623 | return 0; |
2234 | return 0; |
1624 | } |
2235 | } |
1625 | |
2236 | |
1626 | /*****************************************************************************/ |
2237 | /*****************************************************************************/ |
1627 | |
2238 | |
|
|
2239 | int ecb_cold |
1628 | int eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
2240 | eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
1629 | { |
2241 | { |
|
|
2242 | #if !HAVE_PREADWRITE |
|
|
2243 | X_MUTEX_CREATE (preadwritelock); |
|
|
2244 | #endif |
|
|
2245 | |
1630 | return etp_init (want_poll, done_poll); |
2246 | return etp_init (want_poll, done_poll); |
1631 | } |
2247 | } |
1632 | |
2248 | |
|
|
2249 | ecb_inline void |
1633 | static void eio_api_destroy (eio_req *req) |
2250 | eio_api_destroy (eio_req *req) |
1634 | { |
2251 | { |
1635 | free (req); |
2252 | free (req); |
1636 | } |
2253 | } |
1637 | |
2254 | |
1638 | #define REQ(rtype) \ |
2255 | #define REQ(rtype) \ |
… | |
… | |
1657 | { \ |
2274 | { \ |
1658 | eio_api_destroy (req); \ |
2275 | eio_api_destroy (req); \ |
1659 | return 0; \ |
2276 | return 0; \ |
1660 | } |
2277 | } |
1661 | |
2278 | |
|
|
2279 | static void |
1662 | static void eio_execute (etp_worker *self, eio_req *req) |
2280 | eio_execute (etp_worker *self, eio_req *req) |
1663 | { |
2281 | { |
|
|
2282 | #if HAVE_AT |
|
|
2283 | int dirfd; |
|
|
2284 | #else |
|
|
2285 | const char *path; |
|
|
2286 | #endif |
|
|
2287 | |
|
|
2288 | if (ecb_expect_false (EIO_CANCELLED (req))) |
|
|
2289 | { |
|
|
2290 | req->result = -1; |
|
|
2291 | req->errorno = ECANCELED; |
|
|
2292 | return; |
|
|
2293 | } |
|
|
2294 | |
|
|
2295 | if (ecb_expect_false (req->wd == EIO_INVALID_WD)) |
|
|
2296 | { |
|
|
2297 | req->result = -1; |
|
|
2298 | req->errorno = ENOENT; |
|
|
2299 | return; |
|
|
2300 | } |
|
|
2301 | |
|
|
2302 | if (req->type >= EIO_OPEN) |
|
|
2303 | { |
|
|
2304 | #if HAVE_AT |
|
|
2305 | dirfd = WD2FD (req->wd); |
|
|
2306 | #else |
|
|
2307 | path = wd_expand (&self->tmpbuf, req->wd, req->ptr1); |
|
|
2308 | #endif |
|
|
2309 | } |
|
|
2310 | |
1664 | switch (req->type) |
2311 | switch (req->type) |
1665 | { |
2312 | { |
|
|
2313 | case EIO_WD_OPEN: req->wd = eio__wd_open_sync (&self->tmpbuf, req->wd, req->ptr1); |
|
|
2314 | req->result = req->wd == EIO_INVALID_WD ? -1 : 0; |
|
|
2315 | break; |
|
|
2316 | case EIO_WD_CLOSE: req->result = 0; |
|
|
2317 | eio_wd_close_sync (req->wd); break; |
|
|
2318 | |
1666 | case EIO_READ: ALLOC (req->size); |
2319 | case EIO_READ: ALLOC (req->size); |
1667 | req->result = req->offs >= 0 |
2320 | req->result = req->offs >= 0 |
1668 | ? pread (req->int1, req->ptr2, req->size, req->offs) |
2321 | ? pread (req->int1, req->ptr2, req->size, req->offs) |
1669 | : read (req->int1, req->ptr2, req->size); break; |
2322 | : read (req->int1, req->ptr2, req->size); break; |
1670 | case EIO_WRITE: req->result = req->offs >= 0 |
2323 | case EIO_WRITE: req->result = req->offs >= 0 |
1671 | ? pwrite (req->int1, req->ptr2, req->size, req->offs) |
2324 | ? pwrite (req->int1, req->ptr2, req->size, req->offs) |
1672 | : write (req->int1, req->ptr2, req->size); break; |
2325 | : write (req->int1, req->ptr2, req->size); break; |
1673 | |
2326 | |
1674 | case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
2327 | case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
1675 | case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size, self); break; |
2328 | case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size); break; |
|
|
2329 | |
|
|
2330 | #if HAVE_AT |
1676 | |
2331 | |
1677 | case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
2332 | case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
1678 | req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; |
2333 | req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, 0); break; |
1679 | case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
2334 | case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
|
|
2335 | req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, AT_SYMLINK_NOFOLLOW); break; |
|
|
2336 | case EIO_CHOWN: req->result = fchownat (dirfd, req->ptr1, req->int2, req->int3, 0); break; |
|
|
2337 | case EIO_CHMOD: req->result = fchmodat (dirfd, req->ptr1, (mode_t)req->int2, 0); break; |
|
|
2338 | case EIO_TRUNCATE: req->result = eio__truncateat (dirfd, req->ptr1, req->offs); break; |
|
|
2339 | case EIO_OPEN: req->result = openat (dirfd, req->ptr1, req->int1, (mode_t)req->int2); break; |
|
|
2340 | |
|
|
2341 | case EIO_UNLINK: req->result = unlinkat (dirfd, req->ptr1, 0); break; |
|
|
2342 | case EIO_RMDIR: req->result = unlinkat (dirfd, req->ptr1, AT_REMOVEDIR); break; |
|
|
2343 | case EIO_MKDIR: req->result = mkdirat (dirfd, req->ptr1, (mode_t)req->int2); break; |
|
|
2344 | case EIO_RENAME: req->result = renameat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2); break; |
|
|
2345 | case EIO_LINK: req->result = linkat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2, 0); break; |
|
|
2346 | case EIO_SYMLINK: req->result = symlinkat (req->ptr1, dirfd, req->ptr2); break; |
|
|
2347 | case EIO_MKNOD: req->result = mknodat (dirfd, req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break; |
|
|
2348 | case EIO_READLINK: ALLOC (PATH_MAX); |
|
|
2349 | req->result = readlinkat (dirfd, req->ptr1, req->ptr2, PATH_MAX); break; |
|
|
2350 | case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
|
|
2351 | req->result = eio__statvfsat (dirfd, req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break; |
|
|
2352 | case EIO_UTIME: |
|
|
2353 | case EIO_FUTIME: |
|
|
2354 | { |
|
|
2355 | struct timespec ts[2]; |
|
|
2356 | struct timespec *times; |
|
|
2357 | |
|
|
2358 | if (req->nv1 != -1. || req->nv2 != -1.) |
|
|
2359 | { |
|
|
2360 | ts[0].tv_sec = req->nv1; |
|
|
2361 | ts[0].tv_nsec = (req->nv1 - ts[0].tv_sec) * 1e9; |
|
|
2362 | ts[1].tv_sec = req->nv2; |
|
|
2363 | ts[1].tv_nsec = (req->nv2 - ts[1].tv_sec) * 1e9; |
|
|
2364 | |
|
|
2365 | times = ts; |
|
|
2366 | } |
|
|
2367 | else |
|
|
2368 | times = 0; |
|
|
2369 | |
|
|
2370 | req->result = req->type == EIO_FUTIME |
|
|
2371 | ? futimens (req->int1, times) |
|
|
2372 | : utimensat (dirfd, req->ptr1, times, 0); |
|
|
2373 | } |
|
|
2374 | break; |
|
|
2375 | |
|
|
2376 | #else |
|
|
2377 | |
|
|
2378 | case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
|
|
2379 | req->result = stat (path , (EIO_STRUCT_STAT *)req->ptr2); break; |
|
|
2380 | case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
1680 | req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; |
2381 | req->result = lstat (path , (EIO_STRUCT_STAT *)req->ptr2); break; |
|
|
2382 | case EIO_CHOWN: req->result = chown (path , req->int2, req->int3); break; |
|
|
2383 | case EIO_CHMOD: req->result = chmod (path , (mode_t)req->int2); break; |
|
|
2384 | case EIO_TRUNCATE: req->result = truncate (path , req->offs); break; |
|
|
2385 | case EIO_OPEN: req->result = open (path , req->int1, (mode_t)req->int2); break; |
|
|
2386 | |
|
|
2387 | case EIO_UNLINK: req->result = unlink (path ); break; |
|
|
2388 | case EIO_RMDIR: req->result = rmdir (path ); break; |
|
|
2389 | case EIO_MKDIR: req->result = mkdir (path , (mode_t)req->int2); break; |
|
|
2390 | case EIO_RENAME: req->result = rename (path , req->ptr2); break; |
|
|
2391 | case EIO_LINK: req->result = link (path , req->ptr2); break; |
|
|
2392 | case EIO_SYMLINK: req->result = symlink (path , req->ptr2); break; |
|
|
2393 | case EIO_MKNOD: req->result = mknod (path , (mode_t)req->int2, (dev_t)req->offs); break; |
|
|
2394 | case EIO_READLINK: ALLOC (PATH_MAX); |
|
|
2395 | req->result = readlink (path, req->ptr2, PATH_MAX); break; |
|
|
2396 | case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
|
|
2397 | req->result = statvfs (path , (EIO_STRUCT_STATVFS *)req->ptr2); break; |
|
|
2398 | |
|
|
2399 | case EIO_UTIME: |
|
|
2400 | case EIO_FUTIME: |
|
|
2401 | { |
|
|
2402 | struct timeval tv[2]; |
|
|
2403 | struct timeval *times; |
|
|
2404 | |
|
|
2405 | if (req->nv1 != -1. || req->nv2 != -1.) |
|
|
2406 | { |
|
|
2407 | tv[0].tv_sec = req->nv1; |
|
|
2408 | tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1e6; |
|
|
2409 | tv[1].tv_sec = req->nv2; |
|
|
2410 | tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1e6; |
|
|
2411 | |
|
|
2412 | times = tv; |
|
|
2413 | } |
|
|
2414 | else |
|
|
2415 | times = 0; |
|
|
2416 | |
|
|
2417 | req->result = req->type == EIO_FUTIME |
|
|
2418 | ? futimes (req->int1, times) |
|
|
2419 | : utimes (req->ptr1, times); |
|
|
2420 | } |
|
|
2421 | break; |
|
|
2422 | |
|
|
2423 | #endif |
|
|
2424 | |
|
|
2425 | case EIO_REALPATH: if (0 <= (req->result = eio__realpath (&self->tmpbuf, req->wd, req->ptr1))) |
|
|
2426 | { |
|
|
2427 | ALLOC (req->result); |
|
|
2428 | memcpy (req->ptr2, self->tmpbuf.ptr, req->result); |
|
|
2429 | } |
|
|
2430 | break; |
|
|
2431 | |
1681 | case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
2432 | case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
1682 | req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break; |
2433 | req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break; |
1683 | |
2434 | |
1684 | case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
|
|
1685 | req->result = statvfs (req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break; |
|
|
1686 | case EIO_FSTATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
2435 | case EIO_FSTATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
1687 | req->result = fstatvfs (req->int1, (EIO_STRUCT_STATVFS *)req->ptr2); break; |
2436 | req->result = fstatvfs (req->int1, (EIO_STRUCT_STATVFS *)req->ptr2); break; |
1688 | |
2437 | |
1689 | case EIO_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break; |
|
|
1690 | case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
2438 | case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
1691 | case EIO_CHMOD: req->result = chmod (req->ptr1, (mode_t)req->int2); break; |
|
|
1692 | case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break; |
2439 | case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break; |
1693 | case EIO_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break; |
|
|
1694 | case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break; |
2440 | case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break; |
1695 | |
2441 | |
1696 | case EIO_OPEN: req->result = open (req->ptr1, req->int1, (mode_t)req->int2); break; |
|
|
1697 | case EIO_CLOSE: req->result = close (req->int1); break; |
2442 | case EIO_CLOSE: req->result = close (req->int1); break; |
1698 | case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break; |
2443 | case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break; |
1699 | case EIO_UNLINK: req->result = unlink (req->ptr1); break; |
|
|
1700 | case EIO_RMDIR: req->result = rmdir (req->ptr1); break; |
|
|
1701 | case EIO_MKDIR: req->result = mkdir (req->ptr1, (mode_t)req->int2); break; |
|
|
1702 | case EIO_RENAME: req->result = rename (req->ptr1, req->ptr2); break; |
|
|
1703 | case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break; |
|
|
1704 | case EIO_SYMLINK: req->result = symlink (req->ptr1, req->ptr2); break; |
|
|
1705 | case EIO_MKNOD: req->result = mknod (req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break; |
|
|
1706 | |
|
|
1707 | case EIO_READLINK: ALLOC (PATH_MAX); |
|
|
1708 | req->result = readlink (req->ptr1, req->ptr2, PATH_MAX); break; |
|
|
1709 | |
|
|
1710 | case EIO_SYNC: req->result = 0; sync (); break; |
2444 | case EIO_SYNC: req->result = 0; sync (); break; |
1711 | case EIO_FSYNC: req->result = fsync (req->int1); break; |
2445 | case EIO_FSYNC: req->result = fsync (req->int1); break; |
1712 | case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
2446 | case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
|
|
2447 | case EIO_SYNCFS: req->result = eio__syncfs (req->int1); break; |
|
|
2448 | case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break; |
1713 | case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break; |
2449 | case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break; |
1714 | case EIO_MTOUCH: req->result = eio__mtouch (req->ptr2, req->size, req->int1); break; |
2450 | case EIO_MTOUCH: req->result = eio__mtouch (req); break; |
1715 | case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break; |
2451 | case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break; |
1716 | case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break; |
2452 | case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break; |
1717 | case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break; |
2453 | case EIO_FALLOCATE: req->result = eio__fallocate (req->int1, req->int2, req->offs, req->size); break; |
1718 | |
2454 | |
1719 | case EIO_READDIR: eio__scandir (req, self); break; |
2455 | case EIO_READDIR: eio__scandir (req, self); break; |
1720 | |
2456 | |
1721 | case EIO_BUSY: |
2457 | case EIO_BUSY: |
1722 | #ifdef _WIN32 |
2458 | #ifdef _WIN32 |
… | |
… | |
1731 | req->result = select (0, 0, 0, 0, &tv); |
2467 | req->result = select (0, 0, 0, 0, &tv); |
1732 | } |
2468 | } |
1733 | #endif |
2469 | #endif |
1734 | break; |
2470 | break; |
1735 | |
2471 | |
1736 | case EIO_UTIME: |
|
|
1737 | case EIO_FUTIME: |
|
|
1738 | { |
|
|
1739 | struct timeval tv[2]; |
|
|
1740 | struct timeval *times; |
|
|
1741 | |
|
|
1742 | if (req->nv1 != -1. || req->nv2 != -1.) |
|
|
1743 | { |
|
|
1744 | tv[0].tv_sec = req->nv1; |
|
|
1745 | tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.; |
|
|
1746 | tv[1].tv_sec = req->nv2; |
|
|
1747 | tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.; |
|
|
1748 | |
|
|
1749 | times = tv; |
|
|
1750 | } |
|
|
1751 | else |
|
|
1752 | times = 0; |
|
|
1753 | |
|
|
1754 | req->result = req->type == EIO_FUTIME |
|
|
1755 | ? futimes (req->int1, times) |
|
|
1756 | : utimes (req->ptr1, times); |
|
|
1757 | } |
|
|
1758 | break; |
|
|
1759 | |
|
|
1760 | case EIO_GROUP: |
2472 | case EIO_GROUP: |
1761 | abort (); /* handled in eio_request */ |
2473 | abort (); /* handled in eio_request */ |
1762 | |
2474 | |
1763 | case EIO_NOP: |
2475 | case EIO_NOP: |
1764 | req->result = 0; |
2476 | req->result = 0; |
1765 | break; |
2477 | break; |
1766 | |
2478 | |
1767 | case EIO_CUSTOM: |
2479 | case EIO_CUSTOM: |
1768 | ((void (*)(eio_req *))req->feed) (req); |
2480 | req->feed (req); |
1769 | break; |
2481 | break; |
1770 | |
2482 | |
1771 | default: |
2483 | default: |
1772 | errno = ENOSYS; |
2484 | errno = ENOSYS; |
1773 | req->result = -1; |
2485 | req->result = -1; |
… | |
… | |
1777 | req->errorno = errno; |
2489 | req->errorno = errno; |
1778 | } |
2490 | } |
1779 | |
2491 | |
1780 | #ifndef EIO_NO_WRAPPERS |
2492 | #ifndef EIO_NO_WRAPPERS |
1781 | |
2493 | |
|
|
2494 | eio_req *eio_wd_open (const char *path, int pri, eio_cb cb, void *data) |
|
|
2495 | { |
|
|
2496 | REQ (EIO_WD_OPEN); PATH; SEND; |
|
|
2497 | } |
|
|
2498 | |
|
|
2499 | eio_req *eio_wd_close (eio_wd wd, int pri, eio_cb cb, void *data) |
|
|
2500 | { |
|
|
2501 | REQ (EIO_WD_CLOSE); req->wd = wd; SEND; |
|
|
2502 | } |
|
|
2503 | |
1782 | eio_req *eio_nop (int pri, eio_cb cb, void *data) |
2504 | eio_req *eio_nop (int pri, eio_cb cb, void *data) |
1783 | { |
2505 | { |
1784 | REQ (EIO_NOP); SEND; |
2506 | REQ (EIO_NOP); SEND; |
1785 | } |
2507 | } |
1786 | |
2508 | |
… | |
… | |
1802 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
2524 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
1803 | { |
2525 | { |
1804 | REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
2526 | REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
1805 | } |
2527 | } |
1806 | |
2528 | |
|
|
2529 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data) |
|
|
2530 | { |
|
|
2531 | REQ (EIO_FDATASYNC); req->int1 = fd; SEND; |
|
|
2532 | } |
|
|
2533 | |
|
|
2534 | eio_req *eio_syncfs (int fd, int pri, eio_cb cb, void *data) |
|
|
2535 | { |
|
|
2536 | REQ (EIO_SYNCFS); req->int1 = fd; SEND; |
|
|
2537 | } |
|
|
2538 | |
|
|
2539 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data) |
|
|
2540 | { |
|
|
2541 | REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND; |
|
|
2542 | } |
|
|
2543 | |
1807 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
2544 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
1808 | { |
2545 | { |
1809 | REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
2546 | REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
1810 | } |
2547 | } |
1811 | |
2548 | |
… | |
… | |
1817 | eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data) |
2554 | eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data) |
1818 | { |
2555 | { |
1819 | REQ (EIO_MLOCKALL); req->int1 = flags; SEND; |
2556 | REQ (EIO_MLOCKALL); req->int1 = flags; SEND; |
1820 | } |
2557 | } |
1821 | |
2558 | |
1822 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data) |
2559 | eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data) |
1823 | { |
2560 | { |
1824 | REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND; |
2561 | REQ (EIO_FALLOCATE); req->int1 = fd; req->int2 = mode; req->offs = offset; req->size = len; SEND; |
1825 | } |
|
|
1826 | |
|
|
1827 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data) |
|
|
1828 | { |
|
|
1829 | REQ (EIO_FDATASYNC); req->int1 = fd; SEND; |
|
|
1830 | } |
2562 | } |
1831 | |
2563 | |
1832 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data) |
2564 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data) |
1833 | { |
2565 | { |
1834 | REQ (EIO_CLOSE); req->int1 = fd; SEND; |
2566 | REQ (EIO_CLOSE); req->int1 = fd; SEND; |
… | |
… | |
1872 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data) |
2604 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data) |
1873 | { |
2605 | { |
1874 | REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND; |
2606 | REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND; |
1875 | } |
2607 | } |
1876 | |
2608 | |
1877 | eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data) |
2609 | eio_req *eio_fchown (int fd, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data) |
1878 | { |
2610 | { |
1879 | REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
2611 | REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
1880 | } |
2612 | } |
1881 | |
2613 | |
1882 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data) |
2614 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data) |
… | |
… | |
1902 | eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data) |
2634 | eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data) |
1903 | { |
2635 | { |
1904 | REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND; |
2636 | REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND; |
1905 | } |
2637 | } |
1906 | |
2638 | |
1907 | eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data) |
2639 | eio_req *eio_chown (const char *path, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data) |
1908 | { |
2640 | { |
1909 | REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
2641 | REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
1910 | } |
2642 | } |
1911 | |
2643 | |
1912 | eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data) |
2644 | eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data) |
… | |
… | |
1926 | } |
2658 | } |
1927 | |
2659 | |
1928 | eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data) |
2660 | eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data) |
1929 | { |
2661 | { |
1930 | return eio__1path (EIO_READLINK, path, pri, cb, data); |
2662 | return eio__1path (EIO_READLINK, path, pri, cb, data); |
|
|
2663 | } |
|
|
2664 | |
|
|
2665 | eio_req *eio_realpath (const char *path, int pri, eio_cb cb, void *data) |
|
|
2666 | { |
|
|
2667 | return eio__1path (EIO_REALPATH, path, pri, cb, data); |
1931 | } |
2668 | } |
1932 | |
2669 | |
1933 | eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data) |
2670 | eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data) |
1934 | { |
2671 | { |
1935 | return eio__1path (EIO_STAT, path, pri, cb, data); |
2672 | return eio__1path (EIO_STAT, path, pri, cb, data); |
… | |
… | |
1994 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
2731 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
1995 | { |
2732 | { |
1996 | return eio__2path (EIO_RENAME, path, new_path, pri, cb, data); |
2733 | return eio__2path (EIO_RENAME, path, new_path, pri, cb, data); |
1997 | } |
2734 | } |
1998 | |
2735 | |
1999 | eio_req *eio_custom (eio_cb execute, int pri, eio_cb cb, void *data) |
2736 | eio_req *eio_custom (void (*execute)(eio_req *), int pri, eio_cb cb, void *data) |
2000 | { |
2737 | { |
2001 | REQ (EIO_CUSTOM); req->feed = (void (*)(eio_req *))execute; SEND; |
2738 | REQ (EIO_CUSTOM); req->feed = execute; SEND; |
2002 | } |
2739 | } |
2003 | |
2740 | |
2004 | #endif |
2741 | #endif |
2005 | |
2742 | |
2006 | eio_req *eio_grp (eio_cb cb, void *data) |
2743 | eio_req *eio_grp (eio_cb cb, void *data) |
… | |
… | |
2015 | #undef SEND |
2752 | #undef SEND |
2016 | |
2753 | |
2017 | /*****************************************************************************/ |
2754 | /*****************************************************************************/ |
2018 | /* grp functions */ |
2755 | /* grp functions */ |
2019 | |
2756 | |
|
|
2757 | void |
2020 | void eio_grp_feed (eio_req *grp, void (*feed)(eio_req *req), int limit) |
2758 | eio_grp_feed (eio_req *grp, void (*feed)(eio_req *req), int limit) |
2021 | { |
2759 | { |
2022 | grp->int2 = limit; |
2760 | grp->int2 = limit; |
2023 | grp->feed = feed; |
2761 | grp->feed = feed; |
2024 | |
2762 | |
2025 | grp_try_feed (grp); |
2763 | grp_try_feed (grp); |
2026 | } |
2764 | } |
2027 | |
2765 | |
|
|
2766 | void |
2028 | void eio_grp_limit (eio_req *grp, int limit) |
2767 | eio_grp_limit (eio_req *grp, int limit) |
2029 | { |
2768 | { |
2030 | grp->int2 = limit; |
2769 | grp->int2 = limit; |
2031 | |
2770 | |
2032 | grp_try_feed (grp); |
2771 | grp_try_feed (grp); |
2033 | } |
2772 | } |
2034 | |
2773 | |
|
|
2774 | void |
2035 | void eio_grp_add (eio_req *grp, eio_req *req) |
2775 | eio_grp_add (eio_req *grp, eio_req *req) |
2036 | { |
2776 | { |
2037 | assert (("cannot add requests to IO::AIO::GRP after the group finished", grp->int1 != 2)); |
2777 | assert (("cannot add requests to IO::AIO::GRP after the group finished", grp->int1 != 2)); |
2038 | |
2778 | |
2039 | grp->flags |= EIO_FLAG_GROUPADD; |
2779 | grp->flags |= EIO_FLAG_GROUPADD; |
2040 | |
2780 | |
… | |
… | |
2051 | } |
2791 | } |
2052 | |
2792 | |
2053 | /*****************************************************************************/ |
2793 | /*****************************************************************************/ |
2054 | /* misc garbage */ |
2794 | /* misc garbage */ |
2055 | |
2795 | |
|
|
2796 | eio_ssize_t |
2056 | ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count) |
2797 | eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count) |
2057 | { |
2798 | { |
2058 | etp_worker wrk; |
|
|
2059 | ssize_t ret; |
|
|
2060 | |
|
|
2061 | wrk.dbuf = 0; |
|
|
2062 | |
|
|
2063 | ret = eio__sendfile (ofd, ifd, offset, count, &wrk); |
2799 | return eio__sendfile (ofd, ifd, offset, count); |
2064 | |
|
|
2065 | if (wrk.dbuf) |
|
|
2066 | free (wrk.dbuf); |
|
|
2067 | |
|
|
2068 | return ret; |
|
|
2069 | } |
2800 | } |
2070 | |
2801 | |