… | |
… | |
7 | |
7 | |
8 | #include "autoconf/config.h" |
8 | #include "autoconf/config.h" |
9 | |
9 | |
10 | #include <pthread.h> |
10 | #include <pthread.h> |
11 | |
11 | |
|
|
12 | #include <stddef.h> |
12 | #include <sys/types.h> |
13 | #include <sys/types.h> |
13 | #include <sys/stat.h> |
14 | #include <sys/stat.h> |
14 | |
15 | #include <limits.h> |
15 | #include <unistd.h> |
16 | #include <unistd.h> |
16 | #include <fcntl.h> |
17 | #include <fcntl.h> |
17 | #include <signal.h> |
18 | #include <signal.h> |
18 | #include <sched.h> |
19 | #include <sched.h> |
19 | |
20 | |
… | |
… | |
30 | # else |
31 | # else |
31 | # error sendfile support requested but not available |
32 | # error sendfile support requested but not available |
32 | # endif |
33 | # endif |
33 | #endif |
34 | #endif |
34 | |
35 | |
|
|
36 | /* used for struct dirent, AIX doesn't provide it */ |
|
|
37 | #ifndef NAME_MAX |
|
|
38 | # define NAME_MAX 4096 |
|
|
39 | #endif |
|
|
40 | |
35 | #if __ia64 |
41 | #if __ia64 |
36 | # define STACKSIZE 65536 |
42 | # define STACKSIZE 65536 |
37 | #else |
43 | #else |
38 | # define STACKSIZE 4096 |
44 | # define STACKSIZE 8192 |
39 | #endif |
45 | #endif |
40 | |
46 | |
41 | enum { |
47 | enum { |
42 | REQ_QUIT, |
48 | REQ_QUIT, |
43 | REQ_OPEN, REQ_CLOSE, |
49 | REQ_OPEN, REQ_CLOSE, |
44 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
50 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
45 | REQ_SENDFILE, |
51 | REQ_SENDFILE, |
46 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
52 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
47 | REQ_FSYNC, REQ_FDATASYNC, |
53 | REQ_FSYNC, REQ_FDATASYNC, |
48 | REQ_UNLINK, REQ_RMDIR, |
54 | REQ_UNLINK, REQ_RMDIR, |
|
|
55 | REQ_READDIR, |
49 | REQ_SYMLINK, |
56 | REQ_SYMLINK, |
50 | }; |
57 | }; |
51 | |
58 | |
52 | typedef struct aio_cb { |
59 | typedef struct aio_cb { |
53 | struct aio_cb *volatile next; |
60 | struct aio_cb *volatile next; |
54 | |
61 | |
55 | int type; |
62 | int type; |
56 | |
63 | |
|
|
64 | /* should receive a cleanup, with unions */ |
57 | int fd, fd2; |
65 | int fd, fd2; |
58 | off_t offset; |
66 | off_t offset; |
59 | size_t length; |
67 | size_t length; |
60 | ssize_t result; |
68 | ssize_t result; |
61 | mode_t mode; /* open */ |
69 | mode_t mode; /* open */ |
… | |
… | |
97 | Safefree (req->statdata); |
105 | Safefree (req->statdata); |
98 | |
106 | |
99 | if (req->callback) |
107 | if (req->callback) |
100 | SvREFCNT_dec (req->callback); |
108 | SvREFCNT_dec (req->callback); |
101 | |
109 | |
|
|
110 | if (req->type == REQ_READDIR && req->result >= 0) |
|
|
111 | free (req->data2ptr); |
|
|
112 | |
102 | Safefree (req); |
113 | Safefree (req); |
103 | } |
114 | } |
104 | |
115 | |
105 | static void |
116 | static void |
106 | poll_wait () |
117 | poll_wait () |
… | |
… | |
170 | PL_statcache = *(req->statdata); |
181 | PL_statcache = *(req->statdata); |
171 | } |
182 | } |
172 | |
183 | |
173 | ENTER; |
184 | ENTER; |
174 | PUSHMARK (SP); |
185 | PUSHMARK (SP); |
175 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
176 | |
186 | |
177 | if (req->type == REQ_OPEN) |
187 | if (req->type == REQ_READDIR) |
178 | { |
188 | { |
|
|
189 | SV *rv = &PL_sv_undef; |
|
|
190 | |
|
|
191 | if (req->result >= 0) |
|
|
192 | { |
|
|
193 | char *buf = req->data2ptr; |
|
|
194 | AV *av = newAV (); |
|
|
195 | |
|
|
196 | while (req->result) |
|
|
197 | { |
|
|
198 | SV *sv = newSVpv (buf, 0); |
|
|
199 | |
|
|
200 | av_push (av, sv); |
|
|
201 | buf += SvCUR (sv) + 1; |
|
|
202 | req->result--; |
|
|
203 | } |
|
|
204 | |
|
|
205 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
206 | } |
|
|
207 | |
|
|
208 | XPUSHs (rv); |
|
|
209 | } |
|
|
210 | else |
|
|
211 | { |
|
|
212 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
213 | |
|
|
214 | if (req->type == REQ_OPEN) |
|
|
215 | { |
179 | /* convert fd to fh */ |
216 | /* convert fd to fh */ |
180 | SV *fh; |
217 | SV *fh; |
181 | |
218 | |
182 | PUTBACK; |
219 | PUTBACK; |
183 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
220 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
184 | SPAGAIN; |
221 | SPAGAIN; |
185 | |
222 | |
186 | fh = SvREFCNT_inc (POPs); |
223 | fh = SvREFCNT_inc (POPs); |
187 | |
224 | |
188 | PUSHMARK (SP); |
225 | PUSHMARK (SP); |
189 | XPUSHs (sv_2mortal (fh)); |
226 | XPUSHs (sv_2mortal (fh)); |
|
|
227 | } |
190 | } |
228 | } |
191 | |
229 | |
192 | if (SvOK (req->callback)) |
230 | if (SvOK (req->callback)) |
193 | { |
231 | { |
194 | PUTBACK; |
232 | PUTBACK; |
… | |
… | |
317 | |
355 | |
318 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
356 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
319 | croak ("cannot set result pipe to nonblocking mode"); |
357 | croak ("cannot set result pipe to nonblocking mode"); |
320 | } |
358 | } |
321 | |
359 | |
322 | static void atfork_prepare (void) |
|
|
323 | { |
|
|
324 | pthread_mutex_lock (&reqlock); |
|
|
325 | pthread_mutex_lock (&reslock); |
|
|
326 | } |
|
|
327 | |
|
|
328 | static void atfork_parent (void) |
|
|
329 | { |
|
|
330 | pthread_mutex_unlock (&reslock); |
|
|
331 | pthread_mutex_unlock (&reqlock); |
|
|
332 | } |
|
|
333 | |
|
|
334 | static void atfork_child (void) |
|
|
335 | { |
|
|
336 | aio_req prv; |
|
|
337 | |
|
|
338 | started = 0; |
|
|
339 | |
|
|
340 | while (reqs) |
|
|
341 | { |
|
|
342 | prv = reqs; |
|
|
343 | reqs = prv->next; |
|
|
344 | free_req (prv); |
|
|
345 | } |
|
|
346 | |
|
|
347 | reqs = reqe = 0; |
|
|
348 | |
|
|
349 | while (ress) |
|
|
350 | { |
|
|
351 | prv = ress; |
|
|
352 | ress = prv->next; |
|
|
353 | free_req (prv); |
|
|
354 | } |
|
|
355 | |
|
|
356 | ress = rese = 0; |
|
|
357 | |
|
|
358 | close (respipe [0]); |
|
|
359 | close (respipe [1]); |
|
|
360 | create_pipe (); |
|
|
361 | |
|
|
362 | atfork_parent (); |
|
|
363 | } |
|
|
364 | |
|
|
365 | /*****************************************************************************/ |
360 | /*****************************************************************************/ |
366 | /* work around various missing functions */ |
361 | /* work around various missing functions */ |
367 | |
362 | |
368 | #if !HAVE_PREADWRITE |
363 | #if !HAVE_PREADWRITE |
369 | # define pread aio_pread |
364 | # define pread aio_pread |
… | |
… | |
372 | /* |
367 | /* |
373 | * make our pread/pwrite safe against themselves, but not against |
368 | * make our pread/pwrite safe against themselves, but not against |
374 | * normal read/write by using a mutex. slows down execution a lot, |
369 | * normal read/write by using a mutex. slows down execution a lot, |
375 | * but that's your problem, not mine. |
370 | * but that's your problem, not mine. |
376 | */ |
371 | */ |
377 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
372 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
378 | |
373 | |
379 | static ssize_t |
374 | static ssize_t |
380 | pread (int fd, void *buf, size_t count, off_t offset) |
375 | pread (int fd, void *buf, size_t count, off_t offset) |
381 | { |
376 | { |
382 | ssize_t res; |
377 | ssize_t res; |
383 | off_t ooffset; |
378 | off_t ooffset; |
384 | |
379 | |
385 | pthread_mutex_lock (&iolock); |
380 | pthread_mutex_lock (&preadwritelock); |
386 | ooffset = lseek (fd, 0, SEEK_CUR); |
381 | ooffset = lseek (fd, 0, SEEK_CUR); |
387 | lseek (fd, offset, SEEK_SET); |
382 | lseek (fd, offset, SEEK_SET); |
388 | res = read (fd, buf, count); |
383 | res = read (fd, buf, count); |
389 | lseek (fd, ooffset, SEEK_SET); |
384 | lseek (fd, ooffset, SEEK_SET); |
390 | pthread_mutex_unlock (&iolock); |
385 | pthread_mutex_unlock (&preadwritelock); |
391 | |
386 | |
392 | return res; |
387 | return res; |
393 | } |
388 | } |
394 | |
389 | |
395 | static ssize_t |
390 | static ssize_t |
396 | pwrite (int fd, void *buf, size_t count, off_t offset) |
391 | pwrite (int fd, void *buf, size_t count, off_t offset) |
397 | { |
392 | { |
398 | ssize_t res; |
393 | ssize_t res; |
399 | off_t ooffset; |
394 | off_t ooffset; |
400 | |
395 | |
401 | pthread_mutex_lock (&iolock); |
396 | pthread_mutex_lock (&preadwritelock); |
402 | ooffset = lseek (fd, 0, SEEK_CUR); |
397 | ooffset = lseek (fd, 0, SEEK_CUR); |
403 | lseek (fd, offset, SEEK_SET); |
398 | lseek (fd, offset, SEEK_SET); |
404 | res = write (fd, buf, count); |
399 | res = write (fd, buf, count); |
405 | lseek (fd, offset, SEEK_SET); |
400 | lseek (fd, offset, SEEK_SET); |
406 | pthread_mutex_unlock (&iolock); |
401 | pthread_mutex_unlock (&preadwritelock); |
407 | |
402 | |
408 | return res; |
403 | return res; |
409 | } |
404 | } |
410 | #endif |
405 | #endif |
411 | |
406 | |
… | |
… | |
414 | #endif |
409 | #endif |
415 | |
410 | |
416 | #if !HAVE_READAHEAD |
411 | #if !HAVE_READAHEAD |
417 | # define readahead aio_readahead |
412 | # define readahead aio_readahead |
418 | |
413 | |
419 | static char readahead_buf[4096]; |
|
|
420 | |
|
|
421 | static ssize_t |
414 | static ssize_t |
422 | readahead (int fd, off_t offset, size_t count) |
415 | readahead (int fd, off_t offset, size_t count) |
423 | { |
416 | { |
|
|
417 | char readahead_buf[4096]; |
|
|
418 | |
424 | while (count > 0) |
419 | while (count > 0) |
425 | { |
420 | { |
426 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
421 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
427 | |
422 | |
428 | pread (fd, readahead_buf, len, offset); |
423 | pread (fd, readahead_buf, len, offset); |
… | |
… | |
432 | |
427 | |
433 | errno = 0; |
428 | errno = 0; |
434 | } |
429 | } |
435 | #endif |
430 | #endif |
436 | |
431 | |
|
|
432 | #if !HAVE_READDIR_R |
|
|
433 | # define readdir_r aio_readdir_r |
|
|
434 | |
|
|
435 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
|
|
436 | |
|
|
437 | static int |
|
|
438 | readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
439 | { |
|
|
440 | struct dirent *e; |
|
|
441 | int errorno; |
|
|
442 | |
|
|
443 | pthread_mutex_lock (&readdirlock); |
|
|
444 | |
|
|
445 | e = readdir (dirp); |
|
|
446 | errorno = errno; |
|
|
447 | |
|
|
448 | if (e) |
|
|
449 | { |
|
|
450 | *res = ent; |
|
|
451 | strcpy (ent->d_name, e->d_name); |
|
|
452 | } |
|
|
453 | else |
|
|
454 | *res = 0; |
|
|
455 | |
|
|
456 | pthread_mutex_unlock (&readdirlock); |
|
|
457 | |
|
|
458 | errno = errorno; |
|
|
459 | return e ? 0 : -1; |
|
|
460 | } |
|
|
461 | #endif |
|
|
462 | |
437 | /* sendfile always needs emulation */ |
463 | /* sendfile always needs emulation */ |
438 | static ssize_t |
464 | static ssize_t |
439 | sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
465 | sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
440 | { |
466 | { |
441 | ssize_t res; |
467 | ssize_t res; |
442 | |
468 | |
443 | if (!count) |
469 | if (!count) |
444 | return 0; |
470 | return 0; |
445 | |
471 | |
446 | #if HAVE_SENDFILE |
472 | #if HAVE_SENDFILE |
447 | # if __linux |
473 | # if __linux |
448 | res = sendfile (ofd, ifd, &offset, count); |
474 | res = sendfile (ofd, ifd, &offset, count); |
449 | |
475 | |
450 | # elif __freebsd |
476 | # elif __freebsd |
451 | /* |
477 | /* |
452 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
478 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
453 | * wasted on making it similar to other I/O functions. |
479 | * wasted on making it similar to other I/O functions. |
454 | */ |
480 | */ |
455 | { |
481 | { |
456 | off_t sbytes; |
482 | off_t sbytes; |
457 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
483 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
458 | |
484 | |
459 | if (res < 0 && sbytes) |
485 | if (res < 0 && sbytes) |
460 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
486 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
461 | res = sbytes; |
487 | res = sbytes; |
462 | } |
488 | } |
463 | |
489 | |
464 | # elif __hpux |
490 | # elif __hpux |
465 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
491 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
466 | |
492 | |
467 | # elif __solaris |
493 | # elif __solaris |
468 | { |
494 | { |
469 | struct sendfilevec vec; |
495 | struct sendfilevec vec; |
470 | size_t sbytes; |
496 | size_t sbytes; |
471 | |
497 | |
472 | vec.sfv_fd = ifd; |
498 | vec.sfv_fd = ifd; |
473 | vec.sfv_flag = 0; |
499 | vec.sfv_flag = 0; |
474 | vec.sfv_off = offset; |
500 | vec.sfv_off = offset; |
475 | vec.sfv_len = count; |
501 | vec.sfv_len = count; |
476 | |
502 | |
477 | res = sendfilev (ofd, &vec, 1, &sbytes); |
503 | res = sendfilev (ofd, &vec, 1, &sbytes); |
478 | |
504 | |
479 | if (res < 0 && sbytes) |
505 | if (res < 0 && sbytes) |
480 | res = sbytes; |
506 | res = sbytes; |
481 | } |
507 | } |
482 | |
508 | |
483 | # else |
|
|
484 | res = -1; |
|
|
485 | errno = ENOSYS; |
|
|
486 | # endif |
509 | # endif |
|
|
510 | #else |
|
|
511 | res = -1; |
|
|
512 | errno = ENOSYS; |
487 | #endif |
513 | #endif |
488 | |
514 | |
489 | if (res < 0 |
515 | if (res < 0 |
490 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
516 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
491 | #if __solaris |
517 | #if __solaris |
492 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
518 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
493 | #endif |
519 | #endif |
494 | ) |
520 | ) |
495 | ) |
521 | ) |
496 | { |
522 | { |
497 | /* emulate sendfile. this is a major pain in the ass */ |
523 | /* emulate sendfile. this is a major pain in the ass */ |
498 | char *buf = malloc (4096); |
524 | char buf[4096]; |
499 | res = 0; |
525 | res = 0; |
500 | |
526 | |
501 | for (;;) |
527 | while (count) |
502 | { |
528 | { |
503 | ssize_t cnt; |
529 | ssize_t cnt; |
504 | |
530 | |
505 | cnt = pread (ifd, buf, 4096, offset); |
531 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
506 | |
532 | |
507 | if (cnt <= 0) |
533 | if (cnt <= 0) |
508 | { |
534 | { |
509 | if (cnt && !res) res = -1; |
535 | if (cnt && !res) res = -1; |
510 | break; |
536 | break; |
511 | } |
537 | } |
512 | |
538 | |
513 | cnt = write (ofd, buf, cnt); |
539 | cnt = write (ofd, buf, cnt); |
514 | |
540 | |
515 | if (cnt <= 0) |
541 | if (cnt <= 0) |
516 | { |
542 | { |
517 | if (cnt && !res) res = -1; |
543 | if (cnt && !res) res = -1; |
518 | break; |
544 | break; |
519 | } |
545 | } |
520 | |
546 | |
521 | offset += cnt; |
547 | offset += cnt; |
522 | res += cnt; |
548 | res += cnt; |
|
|
549 | count -= cnt; |
523 | } |
550 | } |
524 | |
|
|
525 | { |
|
|
526 | int errorno = errno; |
|
|
527 | free (buf); |
|
|
528 | errno = errorno; |
|
|
529 | } |
|
|
530 | } |
551 | } |
531 | |
552 | |
532 | return res; |
553 | return res; |
|
|
554 | } |
|
|
555 | |
|
|
556 | /* read a full directory */ |
|
|
557 | static int |
|
|
558 | scandir_ (const char *path, void **namesp) |
|
|
559 | { |
|
|
560 | DIR *dirp = opendir (path); |
|
|
561 | union |
|
|
562 | { |
|
|
563 | struct dirent d; |
|
|
564 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
565 | } u; |
|
|
566 | struct dirent *entp; |
|
|
567 | char *name, *names; |
|
|
568 | int memlen = 4096; |
|
|
569 | int memofs = 0; |
|
|
570 | int res = 0; |
|
|
571 | int errorno; |
|
|
572 | |
|
|
573 | if (!dirp) |
|
|
574 | return -1; |
|
|
575 | |
|
|
576 | names = malloc (memlen); |
|
|
577 | |
|
|
578 | for (;;) |
|
|
579 | { |
|
|
580 | errno = 0, readdir_r (dirp, &u.d, &entp); |
|
|
581 | |
|
|
582 | if (!entp) |
|
|
583 | break; |
|
|
584 | |
|
|
585 | name = entp->d_name; |
|
|
586 | |
|
|
587 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
588 | { |
|
|
589 | int len = strlen (name) + 1; |
|
|
590 | |
|
|
591 | res++; |
|
|
592 | |
|
|
593 | while (memofs + len > memlen) |
|
|
594 | { |
|
|
595 | memlen *= 2; |
|
|
596 | names = realloc (names, memlen); |
|
|
597 | if (!names) |
|
|
598 | break; |
|
|
599 | } |
|
|
600 | |
|
|
601 | memcpy (names + memofs, name, len); |
|
|
602 | memofs += len; |
|
|
603 | } |
|
|
604 | } |
|
|
605 | |
|
|
606 | errorno = errno; |
|
|
607 | closedir (dirp); |
|
|
608 | |
|
|
609 | if (errorno) |
|
|
610 | { |
|
|
611 | free (names); |
|
|
612 | errno = errorno; |
|
|
613 | res = -1; |
|
|
614 | } |
|
|
615 | |
|
|
616 | *namesp = (void *)names; |
|
|
617 | return res; |
533 | } |
618 | } |
534 | |
619 | |
535 | /*****************************************************************************/ |
620 | /*****************************************************************************/ |
536 | |
621 | |
537 | static void * |
622 | static void * |
… | |
… | |
584 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
669 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
585 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
670 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
586 | |
671 | |
587 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
672 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
588 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
673 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
674 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
589 | |
675 | |
590 | case REQ_QUIT: |
676 | case REQ_QUIT: |
591 | break; |
677 | break; |
592 | |
678 | |
593 | default: |
679 | default: |
… | |
… | |
617 | pthread_mutex_unlock (&reslock); |
703 | pthread_mutex_unlock (&reslock); |
618 | } |
704 | } |
619 | while (type != REQ_QUIT); |
705 | while (type != REQ_QUIT); |
620 | |
706 | |
621 | return 0; |
707 | return 0; |
|
|
708 | } |
|
|
709 | |
|
|
710 | /*****************************************************************************/ |
|
|
711 | |
|
|
712 | static void atfork_prepare (void) |
|
|
713 | { |
|
|
714 | pthread_mutex_lock (&reqlock); |
|
|
715 | pthread_mutex_lock (&reslock); |
|
|
716 | #if !HAVE_PREADWRITE |
|
|
717 | pthread_mutex_lock (&preadwritelock); |
|
|
718 | #endif |
|
|
719 | #if !HAVE_READDIR_R |
|
|
720 | pthread_mutex_lock (&readdirlock); |
|
|
721 | #endif |
|
|
722 | } |
|
|
723 | |
|
|
724 | static void atfork_parent (void) |
|
|
725 | { |
|
|
726 | #if !HAVE_READDIR_R |
|
|
727 | pthread_mutex_unlock (&readdirlock); |
|
|
728 | #endif |
|
|
729 | #if !HAVE_PREADWRITE |
|
|
730 | pthread_mutex_unlock (&preadwritelock); |
|
|
731 | #endif |
|
|
732 | pthread_mutex_unlock (&reslock); |
|
|
733 | pthread_mutex_unlock (&reqlock); |
|
|
734 | } |
|
|
735 | |
|
|
736 | static void atfork_child (void) |
|
|
737 | { |
|
|
738 | aio_req prv; |
|
|
739 | |
|
|
740 | started = 0; |
|
|
741 | |
|
|
742 | while (reqs) |
|
|
743 | { |
|
|
744 | prv = reqs; |
|
|
745 | reqs = prv->next; |
|
|
746 | free_req (prv); |
|
|
747 | } |
|
|
748 | |
|
|
749 | reqs = reqe = 0; |
|
|
750 | |
|
|
751 | while (ress) |
|
|
752 | { |
|
|
753 | prv = ress; |
|
|
754 | ress = prv->next; |
|
|
755 | free_req (prv); |
|
|
756 | } |
|
|
757 | |
|
|
758 | ress = rese = 0; |
|
|
759 | |
|
|
760 | close (respipe [0]); |
|
|
761 | close (respipe [1]); |
|
|
762 | create_pipe (); |
|
|
763 | |
|
|
764 | atfork_parent (); |
622 | } |
765 | } |
623 | |
766 | |
624 | #define dREQ \ |
767 | #define dREQ \ |
625 | aio_req req; \ |
768 | aio_req req; \ |
626 | \ |
769 | \ |
… | |
… | |
877 | |
1020 | |
878 | send_req (req); |
1021 | send_req (req); |
879 | } |
1022 | } |
880 | |
1023 | |
881 | void |
1024 | void |
|
|
1025 | aio_readdir(pathname,callback=&PL_sv_undef) |
|
|
1026 | SV * pathname |
|
|
1027 | SV * callback |
|
|
1028 | CODE: |
|
|
1029 | { |
|
|
1030 | dREQ; |
|
|
1031 | |
|
|
1032 | req->type = REQ_READDIR; |
|
|
1033 | req->data = newSVsv (pathname); |
|
|
1034 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1035 | |
|
|
1036 | send_req (req); |
|
|
1037 | } |
|
|
1038 | |
|
|
1039 | void |
882 | flush() |
1040 | flush() |
883 | PROTOTYPE: |
1041 | PROTOTYPE: |
884 | CODE: |
1042 | CODE: |
885 | while (nreqs) |
1043 | while (nreqs) |
886 | { |
1044 | { |