1 | /* |
1 | /* |
2 | * libeio implementation |
2 | * libeio implementation |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libeio@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012,2013,2016,2017 Marc Alexander Lehmann <libeio@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
42 | #endif |
42 | #endif |
43 | |
43 | |
44 | #include "eio.h" |
44 | #include "eio.h" |
45 | #include "ecb.h" |
45 | #include "ecb.h" |
46 | |
46 | |
47 | #ifdef EIO_STACKSIZE |
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48 | # define X_STACKSIZE EIO_STACKSIZE |
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49 | #endif |
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50 | #include "xthread.h" |
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51 | |
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52 | #include <errno.h> |
47 | #include <errno.h> |
53 | #include <stddef.h> |
48 | #include <stddef.h> |
54 | #include <stdlib.h> |
49 | #include <stdlib.h> |
55 | #include <string.h> |
50 | #include <string.h> |
56 | #include <errno.h> |
51 | #include <errno.h> |
… | |
… | |
122 | #define chmod(path,mode) _chmod (path, mode) |
117 | #define chmod(path,mode) _chmod (path, mode) |
123 | #define dup(fd) _dup (fd) |
118 | #define dup(fd) _dup (fd) |
124 | #define dup2(fd1,fd2) _dup2 (fd1, fd2) |
119 | #define dup2(fd1,fd2) _dup2 (fd1, fd2) |
125 | #define pipe(fds) _pipe (fds, 4096, O_BINARY) |
120 | #define pipe(fds) _pipe (fds, 4096, O_BINARY) |
126 | |
121 | |
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122 | #define fcntl(fd,cmd,arg) EIO_ENOSYS () |
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123 | #define ioctl(fd,cmd,arg) EIO_ENOSYS () |
127 | #define fchmod(fd,mode) EIO_ENOSYS () |
124 | #define fchmod(fd,mode) EIO_ENOSYS () |
128 | #define chown(path,uid,gid) EIO_ENOSYS () |
125 | #define chown(path,uid,gid) EIO_ENOSYS () |
129 | #define fchown(fd,uid,gid) EIO_ENOSYS () |
126 | #define fchown(fd,uid,gid) EIO_ENOSYS () |
130 | #define truncate(path,offs) EIO_ENOSYS () /* far-miss: SetEndOfFile */ |
127 | #define truncate(path,offs) EIO_ENOSYS () /* far-miss: SetEndOfFile */ |
131 | #define ftruncate(fd,offs) EIO_ENOSYS () /* near-miss: SetEndOfFile */ |
128 | #define ftruncate(fd,offs) EIO_ENOSYS () /* near-miss: SetEndOfFile */ |
… | |
… | |
204 | /* we could even stat and see if it exists */ |
201 | /* we could even stat and see if it exists */ |
205 | static int |
202 | static int |
206 | symlink (const char *old, const char *neu) |
203 | symlink (const char *old, const char *neu) |
207 | { |
204 | { |
208 | #if WINVER >= 0x0600 |
205 | #if WINVER >= 0x0600 |
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206 | int flags; |
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207 | |
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208 | /* This tries out all combinations of SYMBOLIC_LINK_FLAG_DIRECTORY |
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209 | * and SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE, |
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210 | * with directory first. |
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211 | */ |
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212 | for (flags = 3; flags >= 0; --flags) |
209 | if (CreateSymbolicLink (neu, old, 1)) |
213 | if (CreateSymbolicLink (neu, old, flags)) |
210 | return 0; |
214 | return 0; |
211 | |
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212 | if (CreateSymbolicLink (neu, old, 0)) |
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213 | return 0; |
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214 | #endif |
215 | #endif |
215 | |
216 | |
216 | return EIO_ERRNO (ENOENT, -1); |
217 | return EIO_ERRNO (ENOENT, -1); |
217 | } |
218 | } |
218 | |
219 | |
… | |
… | |
230 | #define D_NAME(entp) entp.cFileName |
231 | #define D_NAME(entp) entp.cFileName |
231 | #define D_TYPE(entp) (entp.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ? DT_DIR : DT_REG) |
232 | #define D_TYPE(entp) (entp.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ? DT_DIR : DT_REG) |
232 | |
233 | |
233 | #else |
234 | #else |
234 | |
235 | |
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236 | #include <sys/ioctl.h> |
235 | #include <sys/time.h> |
237 | #include <sys/time.h> |
236 | #include <sys/select.h> |
238 | #include <sys/select.h> |
237 | #include <unistd.h> |
239 | #include <unistd.h> |
238 | #include <signal.h> |
240 | #include <signal.h> |
239 | #include <dirent.h> |
241 | #include <dirent.h> |
… | |
… | |
281 | # include <utime.h> |
283 | # include <utime.h> |
282 | #endif |
284 | #endif |
283 | |
285 | |
284 | #if HAVE_SYS_SYSCALL_H |
286 | #if HAVE_SYS_SYSCALL_H |
285 | # include <sys/syscall.h> |
287 | # include <sys/syscall.h> |
286 | #endif |
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287 | |
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288 | #if HAVE_SYS_PRCTL_H |
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289 | # include <sys/prctl.h> |
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290 | #endif |
288 | #endif |
291 | |
289 | |
292 | #if HAVE_SENDFILE |
290 | #if HAVE_SENDFILE |
293 | # if __linux |
291 | # if __linux |
294 | # include <sys/sendfile.h> |
292 | # include <sys/sendfile.h> |
… | |
… | |
302 | # else |
300 | # else |
303 | # error sendfile support requested but not available |
301 | # error sendfile support requested but not available |
304 | # endif |
302 | # endif |
305 | #endif |
303 | #endif |
306 | |
304 | |
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305 | #if HAVE_RENAMEAT2 |
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306 | # include <sys/syscall.h> |
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307 | # include <linux/fs.h> |
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308 | #endif |
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309 | |
307 | #ifndef D_TYPE |
310 | #ifndef D_TYPE |
308 | # define D_TYPE(de) 0 |
311 | # define D_TYPE(de) 0 |
309 | #endif |
312 | #endif |
310 | #ifndef D_INO |
313 | #ifndef D_INO |
311 | # define D_INO(de) 0 |
314 | # define D_INO(de) 0 |
… | |
… | |
319 | # define NAME_MAX 4096 |
322 | # define NAME_MAX 4096 |
320 | #endif |
323 | #endif |
321 | |
324 | |
322 | /* used for readlink etc. */ |
325 | /* used for readlink etc. */ |
323 | #ifndef PATH_MAX |
326 | #ifndef PATH_MAX |
324 | # define PATH_MAX 4096 |
327 | # define PATH_MAX 0 |
325 | #endif |
328 | #endif |
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329 | |
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330 | #ifndef O_CLOEXEC |
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331 | #define O_CLOEXEC 0 |
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332 | #endif |
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333 | |
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334 | #ifndef EIO_PATH_MIN |
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335 | # define EIO_PATH_MIN 8160 |
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336 | #endif |
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337 | |
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338 | #define EIO_PATH_MAX (PATH_MAX <= EIO_PATH_MIN ? EIO_PATH_MIN : PATH_MAX) |
326 | |
339 | |
327 | /* buffer size for various temporary buffers */ |
340 | /* buffer size for various temporary buffers */ |
328 | #define EIO_BUFSIZE 65536 |
341 | #define EIO_BUFSIZE 65536 |
329 | |
342 | |
330 | #define dBUF \ |
343 | #define dBUF \ |
… | |
… | |
366 | #define ETP_PRI_MAX EIO_PRI_MAX |
379 | #define ETP_PRI_MAX EIO_PRI_MAX |
367 | |
380 | |
368 | #define ETP_TYPE_QUIT -1 |
381 | #define ETP_TYPE_QUIT -1 |
369 | #define ETP_TYPE_GROUP EIO_GROUP |
382 | #define ETP_TYPE_GROUP EIO_GROUP |
370 | |
383 | |
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384 | static void eio_nop_callback (void) { } |
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385 | static void (*eio_want_poll_cb)(void) = eio_nop_callback; |
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386 | static void (*eio_done_poll_cb)(void) = eio_nop_callback; |
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387 | |
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388 | #define ETP_WANT_POLL(pool) eio_want_poll_cb () |
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389 | #define ETP_DONE_POLL(pool) eio_done_poll_cb () |
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390 | |
371 | struct etp_worker; |
391 | struct etp_worker; |
372 | |
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373 | #define ETP_REQ eio_req |
392 | #define ETP_REQ eio_req |
374 | #define ETP_DESTROY(req) eio_destroy (req) |
393 | #define ETP_DESTROY(req) eio_destroy (req) |
375 | static int eio_finish (eio_req *req); |
394 | static int eio_finish (eio_req *req); |
376 | #define ETP_FINISH(req) eio_finish (req) |
395 | #define ETP_FINISH(req) eio_finish (req) |
377 | static void eio_execute (struct etp_worker *self, eio_req *req); |
396 | static void eio_execute (struct etp_worker *self, eio_req *req); |
378 | #define ETP_EXECUTE(wrk,req) eio_execute (wrk, req) |
397 | #define ETP_EXECUTE(wrk,req) eio_execute (wrk, req) |
379 | |
398 | |
380 | #include "etp.c" |
399 | #include "etp.c" |
381 | |
400 | |
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401 | static struct etp_pool eio_pool; |
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402 | #define EIO_POOL (&eio_pool) |
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403 | |
382 | /*****************************************************************************/ |
404 | /*****************************************************************************/ |
383 | |
405 | |
384 | static void |
406 | static void |
385 | grp_try_feed (eio_req *grp) |
407 | grp_try_feed (eio_req *grp) |
386 | { |
408 | { |
387 | while (grp->size < grp->int2 && !EIO_CANCELLED (grp)) |
409 | while (grp->size < grp->int2 && !EIO_CANCELLED (grp)) |
388 | { |
410 | { |
389 | grp->flags &= ~EIO_FLAG_GROUPADD; |
411 | grp->flags &= ~ETP_FLAG_GROUPADD; |
390 | |
412 | |
391 | EIO_FEED (grp); |
413 | EIO_FEED (grp); |
392 | |
414 | |
393 | /* stop if no progress has been made */ |
415 | /* stop if no progress has been made */ |
394 | if (!(grp->flags & EIO_FLAG_GROUPADD)) |
416 | if (!(grp->flags & ETP_FLAG_GROUPADD)) |
395 | { |
417 | { |
396 | grp->feed = 0; |
418 | grp->feed = 0; |
397 | break; |
419 | break; |
398 | } |
420 | } |
399 | } |
421 | } |
… | |
… | |
406 | |
428 | |
407 | /* call feeder, if applicable */ |
429 | /* call feeder, if applicable */ |
408 | grp_try_feed (grp); |
430 | grp_try_feed (grp); |
409 | |
431 | |
410 | /* finish, if done */ |
432 | /* finish, if done */ |
411 | if (!grp->size && grp->int1) |
433 | if (!grp->size && grp->flags & ETP_FLAG_DELAYED) |
412 | return eio_finish (grp); |
434 | return eio_finish (grp); |
413 | else |
435 | else |
414 | return 0; |
436 | return 0; |
415 | } |
437 | } |
416 | |
438 | |
… | |
… | |
452 | } |
474 | } |
453 | |
475 | |
454 | void |
476 | void |
455 | eio_grp_cancel (eio_req *grp) |
477 | eio_grp_cancel (eio_req *grp) |
456 | { |
478 | { |
457 | etp_grp_cancel (grp); |
479 | etp_grp_cancel (EIO_POOL, grp); |
458 | } |
480 | } |
459 | |
481 | |
460 | void |
482 | void |
461 | eio_cancel (eio_req *req) |
483 | eio_cancel (eio_req *req) |
462 | { |
484 | { |
463 | etp_cancel (req); |
485 | etp_cancel (EIO_POOL, req); |
464 | } |
486 | } |
465 | |
487 | |
466 | void |
488 | void |
467 | eio_submit (eio_req *req) |
489 | eio_submit (eio_req *req) |
468 | { |
490 | { |
469 | etp_submit (req); |
491 | etp_submit (EIO_POOL, req); |
470 | } |
492 | } |
471 | |
493 | |
472 | unsigned int |
494 | unsigned int |
473 | eio_nreqs (void) |
495 | eio_nreqs (void) |
474 | { |
496 | { |
475 | return etp_nreqs (); |
497 | return etp_nreqs (EIO_POOL); |
476 | } |
498 | } |
477 | |
499 | |
478 | unsigned int |
500 | unsigned int |
479 | eio_nready (void) |
501 | eio_nready (void) |
480 | { |
502 | { |
481 | return etp_nready (); |
503 | return etp_nready (EIO_POOL); |
482 | } |
504 | } |
483 | |
505 | |
484 | unsigned int |
506 | unsigned int |
485 | eio_npending (void) |
507 | eio_npending (void) |
486 | { |
508 | { |
487 | return etp_npending (); |
509 | return etp_npending (EIO_POOL); |
488 | } |
510 | } |
489 | |
511 | |
490 | unsigned int ecb_cold |
512 | unsigned int ecb_cold |
491 | eio_nthreads (void) |
513 | eio_nthreads (void) |
492 | { |
514 | { |
493 | return etp_nthreads (); |
515 | return etp_nthreads (EIO_POOL); |
494 | } |
516 | } |
495 | |
517 | |
496 | void ecb_cold |
518 | void ecb_cold |
497 | eio_set_max_poll_time (double nseconds) |
519 | eio_set_max_poll_time (double nseconds) |
498 | { |
520 | { |
499 | etp_set_max_poll_time (nseconds); |
521 | etp_set_max_poll_time (EIO_POOL, nseconds); |
500 | } |
522 | } |
501 | |
523 | |
502 | void ecb_cold |
524 | void ecb_cold |
503 | eio_set_max_poll_reqs (unsigned int maxreqs) |
525 | eio_set_max_poll_reqs (unsigned int maxreqs) |
504 | { |
526 | { |
505 | etp_set_max_poll_reqs (maxreqs); |
527 | etp_set_max_poll_reqs (EIO_POOL, maxreqs); |
506 | } |
528 | } |
507 | |
529 | |
508 | void ecb_cold |
530 | void ecb_cold |
509 | eio_set_max_idle (unsigned int nthreads) |
531 | eio_set_max_idle (unsigned int nthreads) |
510 | { |
532 | { |
511 | etp_set_max_idle (nthreads); |
533 | etp_set_max_idle (EIO_POOL, nthreads); |
512 | } |
534 | } |
513 | |
535 | |
514 | void ecb_cold |
536 | void ecb_cold |
515 | eio_set_idle_timeout (unsigned int seconds) |
537 | eio_set_idle_timeout (unsigned int seconds) |
516 | { |
538 | { |
517 | etp_set_idle_timeout (seconds); |
539 | etp_set_idle_timeout (EIO_POOL, seconds); |
518 | } |
540 | } |
519 | |
541 | |
520 | void ecb_cold |
542 | void ecb_cold |
521 | eio_set_min_parallel (unsigned int nthreads) |
543 | eio_set_min_parallel (unsigned int nthreads) |
522 | { |
544 | { |
523 | etp_set_min_parallel (nthreads); |
545 | etp_set_min_parallel (EIO_POOL, nthreads); |
524 | } |
546 | } |
525 | |
547 | |
526 | void ecb_cold |
548 | void ecb_cold |
527 | eio_set_max_parallel (unsigned int nthreads) |
549 | eio_set_max_parallel (unsigned int nthreads) |
528 | { |
550 | { |
529 | etp_set_max_parallel (nthreads); |
551 | etp_set_max_parallel (EIO_POOL, nthreads); |
530 | } |
552 | } |
531 | |
553 | |
532 | int eio_poll (void) |
554 | int eio_poll (void) |
533 | { |
555 | { |
534 | return etp_poll (); |
556 | return etp_poll (EIO_POOL); |
535 | } |
557 | } |
536 | |
558 | |
537 | /*****************************************************************************/ |
559 | /*****************************************************************************/ |
538 | /* work around various missing functions */ |
560 | /* work around various missing functions */ |
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|
561 | |
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562 | #if HAVE_POSIX_CLOSE && !__linux |
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563 | # define eio__close(fd) posix_close (fd, 0) |
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|
564 | #else |
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|
565 | # define eio__close(fd) close (fd) |
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|
566 | #endif |
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567 | |
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|
568 | /* close() without disturbing errno */ |
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|
569 | static void |
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570 | silent_close (int fd) |
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|
571 | { |
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|
572 | int saved_errno = errno; |
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573 | eio__close (fd); |
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574 | errno = saved_errno; |
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|
575 | } |
539 | |
576 | |
540 | #ifndef HAVE_UTIMES |
577 | #ifndef HAVE_UTIMES |
541 | |
578 | |
542 | # undef utimes |
579 | # undef utimes |
543 | # define utimes(path,times) eio__utimes (path, times) |
580 | # define utimes(path,times) eio__utimes (path, times) |
… | |
… | |
922 | intptr_t end = addr + len; |
959 | intptr_t end = addr + len; |
923 | intptr_t page = eio_pagesize (); |
960 | intptr_t page = eio_pagesize (); |
924 | |
961 | |
925 | if (addr < end) |
962 | if (addr < end) |
926 | if (flags & EIO_MT_MODIFY) /* modify */ |
963 | if (flags & EIO_MT_MODIFY) /* modify */ |
927 | do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < len && !EIO_CANCELLED (req)); |
964 | do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < end && !EIO_CANCELLED (req)); |
928 | else |
965 | else |
929 | do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < len && !EIO_CANCELLED (req)); |
966 | do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < end && !EIO_CANCELLED (req)); |
930 | } |
967 | } |
931 | |
968 | |
932 | return 0; |
969 | return 0; |
933 | } |
970 | } |
934 | |
971 | |
… | |
… | |
968 | |
1005 | |
969 | errno = ENOENT; |
1006 | errno = ENOENT; |
970 | if (!*rel) |
1007 | if (!*rel) |
971 | return -1; |
1008 | return -1; |
972 | |
1009 | |
973 | res = etp_tmpbuf_get (tmpbuf, PATH_MAX * 3); |
1010 | res = etp_tmpbuf_get (tmpbuf, EIO_PATH_MAX * 3); |
974 | #ifdef _WIN32 |
1011 | #ifdef _WIN32 |
975 | if (_access (rel, 4) != 0) |
1012 | if (_access (rel, 4) != 0) |
976 | return -1; |
1013 | return -1; |
977 | |
1014 | |
978 | symlinks = GetFullPathName (rel, PATH_MAX * 3, res, 0); |
1015 | symlinks = GetFullPathName (rel, EIO_PATH_MAX * 3, res, 0); |
979 | |
1016 | |
980 | errno = ENAMETOOLONG; |
1017 | errno = ENAMETOOLONG; |
981 | if (symlinks >= PATH_MAX * 3) |
1018 | if (symlinks >= EIO_PATH_MAX * 3) |
982 | return -1; |
1019 | return -1; |
983 | |
1020 | |
984 | errno = EIO; |
1021 | errno = EIO; |
985 | if (symlinks <= 0) |
1022 | if (symlinks <= 0) |
986 | return -1; |
1023 | return -1; |
987 | |
1024 | |
988 | return symlinks; |
1025 | return symlinks; |
989 | |
1026 | |
990 | #else |
1027 | #else |
991 | tmp1 = res + PATH_MAX; |
1028 | tmp1 = res + EIO_PATH_MAX; |
992 | tmp2 = tmp1 + PATH_MAX; |
1029 | tmp2 = tmp1 + EIO_PATH_MAX; |
993 | |
1030 | |
994 | #if 0 /* disabled, the musl way to do things is just too racy */ |
1031 | #if 0 /* disabled, the musl way to do things is just too racy */ |
995 | #if __linux && defined(O_NONBLOCK) && defined(O_NOATIME) |
1032 | #if __linux && defined(O_NONBLOCK) && defined(O_NOATIME) |
996 | /* on linux we may be able to ask the kernel */ |
1033 | /* on linux we may be able to ask the kernel */ |
997 | { |
1034 | { |
998 | int fd = open (rel, O_RDONLY | O_NONBLOCK | O_NOCTTY | O_NOATIME); |
1035 | int fd = open (rel, O_RDONLY | O_NONBLOCK | O_NOCTTY | O_NOATIME); |
999 | |
1036 | |
1000 | if (fd >= 0) |
1037 | if (fd >= 0) |
1001 | { |
1038 | { |
1002 | sprintf (tmp1, "/proc/self/fd/%d", fd); |
1039 | sprintf (tmp1, "/proc/self/fd/%d", fd); |
1003 | req->result = readlink (tmp1, res, PATH_MAX); |
1040 | req->result = readlink (tmp1, res, EIO_PATH_MAX); |
1004 | /* here we should probably stat the open file and the disk file, to make sure they still match */ |
1041 | /* here we should probably stat the open file and the disk file, to make sure they still match */ |
1005 | close (fd); |
1042 | eio__close (fd); |
1006 | |
1043 | |
1007 | if (req->result > 0) |
1044 | if (req->result > 0) |
1008 | goto done; |
1045 | goto done; |
1009 | } |
1046 | } |
1010 | else if (errno == ELOOP || errno == ENAMETOOLONG || errno == ENOENT || errno == ENOTDIR || errno == EIO) |
1047 | else if (errno == ELOOP || errno == ENAMETOOLONG || errno == ENOENT || errno == ENOTDIR || errno == EIO) |
… | |
… | |
1021 | if (wd == EIO_INVALID_WD) |
1058 | if (wd == EIO_INVALID_WD) |
1022 | return -1; |
1059 | return -1; |
1023 | |
1060 | |
1024 | if (wd == EIO_CWD) |
1061 | if (wd == EIO_CWD) |
1025 | { |
1062 | { |
1026 | if (!getcwd (res, PATH_MAX)) |
1063 | if (!getcwd (res, EIO_PATH_MAX)) |
1027 | return -1; |
1064 | return -1; |
1028 | |
1065 | |
1029 | len = strlen (res); |
1066 | len = strlen (res); |
1030 | } |
1067 | } |
1031 | else |
1068 | else |
… | |
… | |
1078 | |
1115 | |
1079 | /* zero-terminate, for readlink */ |
1116 | /* zero-terminate, for readlink */ |
1080 | res [len + 1] = 0; |
1117 | res [len + 1] = 0; |
1081 | |
1118 | |
1082 | /* now check if it's a symlink */ |
1119 | /* now check if it's a symlink */ |
1083 | linklen = readlink (tmpbuf->ptr, tmp1, PATH_MAX); |
1120 | linklen = readlink (tmpbuf->ptr, tmp1, EIO_PATH_MAX); |
1084 | |
1121 | |
1085 | if (linklen < 0) |
1122 | if (linklen < 0) |
1086 | { |
1123 | { |
1087 | if (errno != EINVAL) |
1124 | if (errno != EINVAL) |
1088 | return -1; |
1125 | return -1; |
… | |
… | |
1094 | { |
1131 | { |
1095 | /* yay, it was a symlink - build new path in tmp2 */ |
1132 | /* yay, it was a symlink - build new path in tmp2 */ |
1096 | int rellen = strlen (rel); |
1133 | int rellen = strlen (rel); |
1097 | |
1134 | |
1098 | errno = ENAMETOOLONG; |
1135 | errno = ENAMETOOLONG; |
1099 | if (linklen + 1 + rellen >= PATH_MAX) |
1136 | if (linklen + 1 + rellen >= EIO_PATH_MAX) /* also catch linklen >= EIO_PATH_MAX */ |
1100 | return -1; |
1137 | return -1; |
1101 | |
1138 | |
1102 | errno = ELOOP; |
1139 | errno = ELOOP; |
1103 | if (!--symlinks) |
1140 | if (!--symlinks) |
1104 | return -1; |
1141 | return -1; |
… | |
… | |
1368 | return; |
1405 | return; |
1369 | |
1406 | |
1370 | dirp = fdopendir (fd); |
1407 | dirp = fdopendir (fd); |
1371 | |
1408 | |
1372 | if (!dirp) |
1409 | if (!dirp) |
1373 | close (fd); |
1410 | silent_close (fd); |
1374 | } |
1411 | } |
1375 | else |
1412 | else |
1376 | dirp = opendir (req->ptr1); |
1413 | dirp = opendir (req->ptr1); |
1377 | #else |
1414 | #else |
1378 | dirp = opendir (wd_expand (&self->tmpbuf, req->wd, req->ptr1)); |
1415 | dirp = opendir (wd_expand (&self->tmpbuf, req->wd, req->ptr1)); |
… | |
… | |
1657 | eio_wd_close_sync (eio_wd wd) |
1694 | eio_wd_close_sync (eio_wd wd) |
1658 | { |
1695 | { |
1659 | if (wd != EIO_INVALID_WD && wd != EIO_CWD) |
1696 | if (wd != EIO_INVALID_WD && wd != EIO_CWD) |
1660 | { |
1697 | { |
1661 | #if HAVE_AT |
1698 | #if HAVE_AT |
1662 | close (wd->fd); |
1699 | eio__close (wd->fd); |
1663 | #endif |
1700 | #endif |
1664 | free (wd); |
1701 | free (wd); |
1665 | } |
1702 | } |
1666 | } |
1703 | } |
1667 | |
1704 | |
1668 | #if HAVE_AT |
1705 | #if HAVE_AT |
1669 | |
1706 | |
|
|
1707 | static int |
|
|
1708 | eio__renameat2 (int olddirfd, const char *oldpath, int newdirfd, const char *newpath, unsigned int flags) |
|
|
1709 | { |
|
|
1710 | #if HAVE_RENAMEAT2 |
|
|
1711 | return syscall (SYS_renameat2, olddirfd, oldpath, newdirfd, newpath, flags); |
|
|
1712 | #else |
|
|
1713 | if (flags) |
|
|
1714 | return EIO_ENOSYS (); |
|
|
1715 | |
|
|
1716 | return renameat (olddirfd, oldpath, newdirfd, newpath); |
|
|
1717 | #endif |
|
|
1718 | } |
|
|
1719 | |
1670 | /* they forgot these */ |
1720 | /* they forgot these */ |
1671 | |
1721 | |
1672 | static int |
1722 | static int |
1673 | eio__truncateat (int dirfd, const char *path, off_t length) |
1723 | eio__truncateat (int dirfd, const char *path, off_t length) |
1674 | { |
1724 | { |
… | |
… | |
1677 | |
1727 | |
1678 | if (fd < 0) |
1728 | if (fd < 0) |
1679 | return fd; |
1729 | return fd; |
1680 | |
1730 | |
1681 | res = ftruncate (fd, length); |
1731 | res = ftruncate (fd, length); |
1682 | close (fd); |
1732 | silent_close (fd); |
1683 | return res; |
1733 | return res; |
1684 | } |
1734 | } |
1685 | |
1735 | |
1686 | static int |
1736 | static int |
1687 | eio__statvfsat (int dirfd, const char *path, struct statvfs *buf) |
1737 | eio__statvfsat (int dirfd, const char *path, struct statvfs *buf) |
… | |
… | |
1691 | |
1741 | |
1692 | if (fd < 0) |
1742 | if (fd < 0) |
1693 | return fd; |
1743 | return fd; |
1694 | |
1744 | |
1695 | res = fstatvfs (fd, buf); |
1745 | res = fstatvfs (fd, buf); |
1696 | close (fd); |
1746 | silent_close (fd); |
1697 | return res; |
1747 | return res; |
1698 | |
|
|
1699 | } |
1748 | } |
1700 | |
1749 | |
1701 | #endif |
1750 | #endif |
1702 | |
1751 | |
1703 | /*****************************************************************************/ |
1752 | /*****************************************************************************/ |
1704 | |
1753 | |
1705 | #define ALLOC(len) \ |
1754 | #define ALLOC(len) \ |
1706 | if (!req->ptr2) \ |
1755 | if (!req->ptr2) \ |
1707 | { \ |
1756 | { \ |
1708 | X_LOCK (wrklock); \ |
1757 | X_LOCK (EIO_POOL->wrklock); \ |
1709 | req->flags |= EIO_FLAG_PTR2_FREE; \ |
1758 | req->flags |= EIO_FLAG_PTR2_FREE; \ |
1710 | X_UNLOCK (wrklock); \ |
1759 | X_UNLOCK (EIO_POOL->wrklock); \ |
1711 | req->ptr2 = malloc (len); \ |
1760 | req->ptr2 = malloc (len); \ |
1712 | if (!req->ptr2) \ |
1761 | if (!req->ptr2) \ |
1713 | { \ |
1762 | { \ |
1714 | errno = ENOMEM; \ |
1763 | errno = ENOMEM; \ |
1715 | req->result = -1; \ |
1764 | req->result = -1; \ |
1716 | break; \ |
1765 | goto alloc_fail; \ |
1717 | } \ |
1766 | } \ |
1718 | } |
1767 | } |
1719 | |
1768 | |
1720 | static void ecb_noinline ecb_cold |
1769 | /*****************************************************************************/ |
1721 | etp_proc_init (void) |
|
|
1722 | { |
|
|
1723 | #if HAVE_PRCTL_SET_NAME |
|
|
1724 | /* provide a more sensible "thread name" */ |
|
|
1725 | char name[16 + 1]; |
|
|
1726 | const int namelen = sizeof (name) - 1; |
|
|
1727 | int len; |
|
|
1728 | |
1770 | |
1729 | prctl (PR_GET_NAME, (unsigned long)name, 0, 0, 0); |
1771 | static void |
1730 | name [namelen] = 0; |
1772 | eio__slurp (int fd, eio_req *req) |
1731 | len = strlen (name); |
|
|
1732 | strcpy (name + (len <= namelen - 4 ? len : namelen - 4), "/eio"); |
|
|
1733 | prctl (PR_SET_NAME, (unsigned long)name, 0, 0, 0); |
|
|
1734 | #endif |
|
|
1735 | } |
|
|
1736 | |
|
|
1737 | /* TODO: move somehow to etp.c */ |
|
|
1738 | X_THREAD_PROC (etp_proc) |
|
|
1739 | { |
1773 | { |
1740 | ETP_REQ *req; |
1774 | req->result = fd; |
1741 | struct timespec ts; |
|
|
1742 | etp_worker *self = (etp_worker *)thr_arg; |
|
|
1743 | |
1775 | |
1744 | etp_proc_init (); |
1776 | if (fd < 0) |
|
|
1777 | return; |
1745 | |
1778 | |
1746 | /* try to distribute timeouts somewhat evenly */ |
1779 | if (req->offs < 0 || !req->size) /* do we need the size? */ |
1747 | ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL); |
|
|
1748 | |
|
|
1749 | for (;;) |
|
|
1750 | { |
1780 | { |
1751 | ts.tv_sec = 0; |
1781 | off_t size = lseek (fd, 0, SEEK_END); |
1752 | |
1782 | |
1753 | X_LOCK (reqlock); |
1783 | if (req->offs < 0) |
|
|
1784 | req->offs += size; |
1754 | |
1785 | |
1755 | for (;;) |
1786 | if (!req->size) |
1756 | { |
1787 | req->size = size - req->offs; |
1757 | req = reqq_shift (&req_queue); |
|
|
1758 | |
|
|
1759 | if (req) |
|
|
1760 | break; |
|
|
1761 | |
|
|
1762 | if (ts.tv_sec == 1) /* no request, but timeout detected, let's quit */ |
|
|
1763 | { |
|
|
1764 | X_UNLOCK (reqlock); |
|
|
1765 | X_LOCK (wrklock); |
|
|
1766 | --started; |
|
|
1767 | X_UNLOCK (wrklock); |
|
|
1768 | goto quit; |
|
|
1769 | } |
|
|
1770 | |
|
|
1771 | ++idle; |
|
|
1772 | |
|
|
1773 | if (idle <= max_idle) |
|
|
1774 | /* we are allowed to idle, so do so without any timeout */ |
|
|
1775 | X_COND_WAIT (reqwait, reqlock); |
|
|
1776 | else |
|
|
1777 | { |
|
|
1778 | /* initialise timeout once */ |
|
|
1779 | if (!ts.tv_sec) |
|
|
1780 | ts.tv_sec = time (0) + idle_timeout; |
|
|
1781 | |
|
|
1782 | if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) == ETIMEDOUT) |
|
|
1783 | ts.tv_sec = 1; /* assuming this is not a value computed above.,.. */ |
|
|
1784 | } |
|
|
1785 | |
|
|
1786 | --idle; |
|
|
1787 | } |
|
|
1788 | |
|
|
1789 | --nready; |
|
|
1790 | |
|
|
1791 | X_UNLOCK (reqlock); |
|
|
1792 | |
|
|
1793 | if (req->type == ETP_TYPE_QUIT) |
|
|
1794 | goto quit; |
|
|
1795 | |
|
|
1796 | ETP_EXECUTE (self, req); |
|
|
1797 | |
|
|
1798 | X_LOCK (reslock); |
|
|
1799 | |
|
|
1800 | ++npending; |
|
|
1801 | |
|
|
1802 | if (!reqq_push (&res_queue, req) && want_poll_cb) |
|
|
1803 | want_poll_cb (); |
|
|
1804 | |
|
|
1805 | etp_worker_clear (self); |
|
|
1806 | |
|
|
1807 | X_UNLOCK (reslock); |
|
|
1808 | } |
1788 | } |
1809 | |
1789 | |
1810 | quit: |
1790 | ALLOC (req->size); |
1811 | free (req); |
1791 | req->result = pread (fd, req->ptr2, req->size, req->offs); |
1812 | |
1792 | |
1813 | X_LOCK (wrklock); |
1793 | silent_close (fd); |
1814 | etp_worker_free (self); |
|
|
1815 | X_UNLOCK (wrklock); |
|
|
1816 | |
1794 | |
1817 | return 0; |
1795 | alloc_fail: |
|
|
1796 | ; |
1818 | } |
1797 | } |
1819 | |
|
|
1820 | /*****************************************************************************/ |
|
|
1821 | |
1798 | |
1822 | int ecb_cold |
1799 | int ecb_cold |
1823 | eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
1800 | eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
1824 | { |
1801 | { |
1825 | return etp_init (want_poll, done_poll); |
1802 | eio_want_poll_cb = want_poll; |
|
|
1803 | eio_done_poll_cb = done_poll; |
|
|
1804 | |
|
|
1805 | return etp_init (EIO_POOL, 0, 0, 0); |
1826 | } |
1806 | } |
1827 | |
1807 | |
1828 | ecb_inline void |
1808 | ecb_inline void |
1829 | eio_api_destroy (eio_req *req) |
1809 | eio_api_destroy (eio_req *req) |
1830 | { |
1810 | { |
… | |
… | |
1904 | : read (req->int1, req->ptr2, req->size); break; |
1884 | : read (req->int1, req->ptr2, req->size); break; |
1905 | case EIO_WRITE: req->result = req->offs >= 0 |
1885 | case EIO_WRITE: req->result = req->offs >= 0 |
1906 | ? pwrite (req->int1, req->ptr2, req->size, req->offs) |
1886 | ? pwrite (req->int1, req->ptr2, req->size, req->offs) |
1907 | : write (req->int1, req->ptr2, req->size); break; |
1887 | : write (req->int1, req->ptr2, req->size); break; |
1908 | |
1888 | |
|
|
1889 | case EIO_FCNTL: req->result = fcntl (req->int1, (int) req->int2, req->ptr2); break; |
|
|
1890 | case EIO_IOCTL: req->result = ioctl (req->int1, (unsigned long)req->int2, req->ptr2); break; |
|
|
1891 | |
1909 | case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
1892 | case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
1910 | case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size); break; |
1893 | case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size); break; |
1911 | |
1894 | |
1912 | #if HAVE_AT |
1895 | #if HAVE_AT |
1913 | |
1896 | |
… | |
… | |
1917 | req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, AT_SYMLINK_NOFOLLOW); break; |
1900 | req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, AT_SYMLINK_NOFOLLOW); break; |
1918 | case EIO_CHOWN: req->result = fchownat (dirfd, req->ptr1, req->int2, req->int3, 0); break; |
1901 | case EIO_CHOWN: req->result = fchownat (dirfd, req->ptr1, req->int2, req->int3, 0); break; |
1919 | case EIO_CHMOD: req->result = fchmodat (dirfd, req->ptr1, (mode_t)req->int2, 0); break; |
1902 | case EIO_CHMOD: req->result = fchmodat (dirfd, req->ptr1, (mode_t)req->int2, 0); break; |
1920 | case EIO_TRUNCATE: req->result = eio__truncateat (dirfd, req->ptr1, req->offs); break; |
1903 | case EIO_TRUNCATE: req->result = eio__truncateat (dirfd, req->ptr1, req->offs); break; |
1921 | case EIO_OPEN: req->result = openat (dirfd, req->ptr1, req->int1, (mode_t)req->int2); break; |
1904 | case EIO_OPEN: req->result = openat (dirfd, req->ptr1, req->int1, (mode_t)req->int2); break; |
|
|
1905 | case EIO_SLURP: eio__slurp ( openat (dirfd, req->ptr1, O_RDONLY | O_CLOEXEC), req); break; |
1922 | |
1906 | |
1923 | case EIO_UNLINK: req->result = unlinkat (dirfd, req->ptr1, 0); break; |
1907 | case EIO_UNLINK: req->result = unlinkat (dirfd, req->ptr1, 0); break; |
1924 | case EIO_RMDIR: /* complications arise because "." cannot be removed, so we might have to expand */ |
1908 | case EIO_RMDIR: /* complications arise because "." cannot be removed, so we might have to expand */ |
1925 | req->result = req->wd && SINGLEDOT (req->ptr1) |
1909 | req->result = req->wd && SINGLEDOT (req->ptr1) |
1926 | ? rmdir (req->wd->str) |
1910 | ? rmdir (req->wd->str) |
1927 | : unlinkat (dirfd, req->ptr1, AT_REMOVEDIR); break; |
1911 | : unlinkat (dirfd, req->ptr1, AT_REMOVEDIR); break; |
1928 | case EIO_MKDIR: req->result = mkdirat (dirfd, req->ptr1, (mode_t)req->int2); break; |
1912 | case EIO_MKDIR: req->result = mkdirat (dirfd, req->ptr1, (mode_t)req->int2); break; |
|
|
1913 | case EIO_RENAME: req->result = eio__renameat2 ( |
|
|
1914 | dirfd, |
1929 | case EIO_RENAME: /* complications arise because "." cannot be renamed, so we might have to expand */ |
1915 | /* complications arise because "." cannot be renamed, so we might have to expand */ |
1930 | req->result = req->wd && SINGLEDOT (req->ptr1) |
1916 | req->wd && SINGLEDOT (req->ptr1) ? req->wd->str : req->ptr1, |
1931 | ? rename (req->wd->str, req->ptr2) |
1917 | WD2FD ((eio_wd)req->int3), |
1932 | : renameat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2); break; |
1918 | req->ptr2, |
|
|
1919 | req->int2 |
|
|
1920 | ); |
|
|
1921 | break; |
1933 | case EIO_LINK: req->result = linkat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2, 0); break; |
1922 | case EIO_LINK: req->result = linkat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2, 0); break; |
1934 | case EIO_SYMLINK: req->result = symlinkat (req->ptr1, dirfd, req->ptr2); break; |
1923 | case EIO_SYMLINK: req->result = symlinkat (req->ptr1, dirfd, req->ptr2); break; |
1935 | case EIO_MKNOD: req->result = mknodat (dirfd, req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break; |
1924 | case EIO_MKNOD: req->result = mknodat (dirfd, req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break; |
1936 | case EIO_READLINK: ALLOC (PATH_MAX); |
|
|
1937 | req->result = readlinkat (dirfd, req->ptr1, req->ptr2, PATH_MAX); break; |
|
|
1938 | case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
1925 | case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
1939 | req->result = eio__statvfsat (dirfd, req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break; |
1926 | req->result = eio__statvfsat (dirfd, req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break; |
|
|
1927 | case EIO_READLINK: ALLOC (EIO_PATH_MAX); |
|
|
1928 | req->result = readlinkat (dirfd, req->ptr1, req->ptr2, EIO_PATH_MAX); |
|
|
1929 | if (req->result == EIO_PATH_MAX) |
|
|
1930 | { |
|
|
1931 | req->result = -1; |
|
|
1932 | errno = ENAMETOOLONG; |
|
|
1933 | } |
|
|
1934 | break; |
1940 | case EIO_UTIME: |
1935 | case EIO_UTIME: |
1941 | case EIO_FUTIME: |
1936 | case EIO_FUTIME: |
1942 | { |
1937 | { |
1943 | struct timespec ts[2]; |
1938 | struct timespec ts[2]; |
1944 | struct timespec *times; |
1939 | struct timespec *times; |
… | |
… | |
1969 | req->result = lstat (path , (EIO_STRUCT_STAT *)req->ptr2); break; |
1964 | req->result = lstat (path , (EIO_STRUCT_STAT *)req->ptr2); break; |
1970 | case EIO_CHOWN: req->result = chown (path , req->int2, req->int3); break; |
1965 | case EIO_CHOWN: req->result = chown (path , req->int2, req->int3); break; |
1971 | case EIO_CHMOD: req->result = chmod (path , (mode_t)req->int2); break; |
1966 | case EIO_CHMOD: req->result = chmod (path , (mode_t)req->int2); break; |
1972 | case EIO_TRUNCATE: req->result = truncate (path , req->offs); break; |
1967 | case EIO_TRUNCATE: req->result = truncate (path , req->offs); break; |
1973 | case EIO_OPEN: req->result = open (path , req->int1, (mode_t)req->int2); break; |
1968 | case EIO_OPEN: req->result = open (path , req->int1, (mode_t)req->int2); break; |
|
|
1969 | case EIO_SLURP: eio__slurp ( open (path , O_RDONLY | O_CLOEXEC), req); break; |
1974 | |
1970 | |
1975 | case EIO_UNLINK: req->result = unlink (path ); break; |
1971 | case EIO_UNLINK: req->result = unlink (path ); break; |
1976 | case EIO_RMDIR: req->result = rmdir (path ); break; |
1972 | case EIO_RMDIR: req->result = rmdir (path ); break; |
1977 | case EIO_MKDIR: req->result = mkdir (path , (mode_t)req->int2); break; |
1973 | case EIO_MKDIR: req->result = mkdir (path , (mode_t)req->int2); break; |
1978 | case EIO_RENAME: req->result = rename (path , req->ptr2); break; |
1974 | case EIO_RENAME: req->result = req->int2 ? EIO_ENOSYS () : rename (path, req->ptr2); break; |
1979 | case EIO_LINK: req->result = link (path , req->ptr2); break; |
1975 | case EIO_LINK: req->result = link (path , req->ptr2); break; |
1980 | case EIO_SYMLINK: req->result = symlink (path , req->ptr2); break; |
1976 | case EIO_SYMLINK: req->result = symlink (path , req->ptr2); break; |
1981 | case EIO_MKNOD: req->result = mknod (path , (mode_t)req->int2, (dev_t)req->offs); break; |
1977 | case EIO_MKNOD: req->result = mknod (path , (mode_t)req->int2, (dev_t)req->offs); break; |
1982 | case EIO_READLINK: ALLOC (PATH_MAX); |
|
|
1983 | req->result = readlink (path, req->ptr2, PATH_MAX); break; |
|
|
1984 | case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
1978 | case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
1985 | req->result = statvfs (path , (EIO_STRUCT_STATVFS *)req->ptr2); break; |
1979 | req->result = statvfs (path , (EIO_STRUCT_STATVFS *)req->ptr2); break; |
|
|
1980 | case EIO_READLINK: ALLOC (EIO_PATH_MAX); |
|
|
1981 | req->result = readlink (path, req->ptr2, EIO_PATH_MAX); |
|
|
1982 | if (req->result == EIO_PATH_MAX) |
|
|
1983 | { |
|
|
1984 | req->result = -1; |
|
|
1985 | errno = ENAMETOOLONG; |
|
|
1986 | } |
|
|
1987 | break; |
1986 | |
1988 | |
1987 | case EIO_UTIME: |
1989 | case EIO_UTIME: |
1988 | case EIO_FUTIME: |
1990 | case EIO_FUTIME: |
1989 | { |
1991 | { |
1990 | struct timeval tv[2]; |
1992 | struct timeval tv[2]; |
… | |
… | |
2025 | |
2027 | |
2026 | case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
2028 | case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
2027 | case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break; |
2029 | case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break; |
2028 | case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break; |
2030 | case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break; |
2029 | |
2031 | |
2030 | case EIO_CLOSE: req->result = close (req->int1); break; |
2032 | case EIO_CLOSE: req->result = eio__close (req->int1); break; |
2031 | case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break; |
2033 | case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break; |
2032 | case EIO_SYNC: req->result = 0; sync (); break; |
2034 | case EIO_SYNC: req->result = 0; sync (); break; |
2033 | case EIO_FSYNC: req->result = fsync (req->int1); break; |
2035 | case EIO_FSYNC: req->result = fsync (req->int1); break; |
2034 | case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
2036 | case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
2035 | case EIO_SYNCFS: req->result = eio__syncfs (req->int1); break; |
2037 | case EIO_SYNCFS: req->result = eio__syncfs (req->int1); break; |
… | |
… | |
2073 | default: |
2075 | default: |
2074 | req->result = EIO_ENOSYS (); |
2076 | req->result = EIO_ENOSYS (); |
2075 | break; |
2077 | break; |
2076 | } |
2078 | } |
2077 | |
2079 | |
|
|
2080 | alloc_fail: |
2078 | req->errorno = errno; |
2081 | req->errorno = errno; |
2079 | } |
2082 | } |
2080 | |
2083 | |
2081 | #ifndef EIO_NO_WRAPPERS |
2084 | #ifndef EIO_NO_WRAPPERS |
2082 | |
2085 | |
… | |
… | |
2171 | } |
2174 | } |
2172 | |
2175 | |
2173 | eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data) |
2176 | eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data) |
2174 | { |
2177 | { |
2175 | REQ (EIO_WRITE); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND; |
2178 | REQ (EIO_WRITE); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND; |
|
|
2179 | } |
|
|
2180 | |
|
|
2181 | eio_req *eio_fcntl (int fd, int cmd, void *arg, int pri, eio_cb cb, void *data) |
|
|
2182 | { |
|
|
2183 | REQ (EIO_IOCTL); req->int1 = fd; req->int2 = cmd; req->ptr2 = arg; SEND; |
|
|
2184 | } |
|
|
2185 | |
|
|
2186 | eio_req *eio_ioctl (int fd, unsigned long request, void *buf, int pri, eio_cb cb, void *data) |
|
|
2187 | { |
|
|
2188 | REQ (EIO_IOCTL); req->int1 = fd; req->int2 = request; req->ptr2 = buf; SEND; |
2176 | } |
2189 | } |
2177 | |
2190 | |
2178 | eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data) |
2191 | eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data) |
2179 | { |
2192 | { |
2180 | REQ (EIO_FSTAT); req->int1 = fd; SEND; |
2193 | REQ (EIO_FSTAT); req->int1 = fd; SEND; |
… | |
… | |
2325 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
2338 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
2326 | { |
2339 | { |
2327 | return eio__2path (EIO_RENAME, path, new_path, pri, cb, data); |
2340 | return eio__2path (EIO_RENAME, path, new_path, pri, cb, data); |
2328 | } |
2341 | } |
2329 | |
2342 | |
|
|
2343 | eio_req *eio_slurp (const char *path, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data) |
|
|
2344 | { |
|
|
2345 | REQ (EIO_SLURP); PATH; req->offs = offset; req->size = length; req->ptr2 = buf; SEND; |
|
|
2346 | } |
|
|
2347 | |
2330 | eio_req *eio_custom (void (*execute)(eio_req *), int pri, eio_cb cb, void *data) |
2348 | eio_req *eio_custom (void (*execute)(eio_req *), int pri, eio_cb cb, void *data) |
2331 | { |
2349 | { |
2332 | REQ (EIO_CUSTOM); req->feed = execute; SEND; |
2350 | REQ (EIO_CUSTOM); req->feed = execute; SEND; |
2333 | } |
2351 | } |
2334 | |
2352 | |
… | |
… | |
2368 | void |
2386 | void |
2369 | eio_grp_add (eio_req *grp, eio_req *req) |
2387 | eio_grp_add (eio_req *grp, eio_req *req) |
2370 | { |
2388 | { |
2371 | assert (("cannot add requests to IO::AIO::GRP after the group finished", grp->int1 != 2)); |
2389 | assert (("cannot add requests to IO::AIO::GRP after the group finished", grp->int1 != 2)); |
2372 | |
2390 | |
2373 | grp->flags |= EIO_FLAG_GROUPADD; |
2391 | grp->flags |= ETP_FLAG_GROUPADD; |
2374 | |
2392 | |
2375 | ++grp->size; |
2393 | ++grp->size; |
2376 | req->grp = grp; |
2394 | req->grp = grp; |
2377 | |
2395 | |
2378 | req->grp_prev = 0; |
2396 | req->grp_prev = 0; |