… | |
… | |
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 | |
… | |
… | |
23 | # elif __freebsd |
24 | # elif __freebsd |
24 | # include <sys/socket.h> |
25 | # include <sys/socket.h> |
25 | # include <sys/uio.h> |
26 | # include <sys/uio.h> |
26 | # elif __hpux |
27 | # elif __hpux |
27 | # include <sys/socket.h> |
28 | # include <sys/socket.h> |
|
|
29 | # elif __solaris /* not yet */ |
|
|
30 | # include <sys/sendfile.h> |
|
|
31 | # else |
|
|
32 | # error sendfile support requested but not available |
28 | # endif |
33 | # endif |
|
|
34 | #endif |
|
|
35 | |
|
|
36 | /* used for struct dirent, AIX doesn't provide it */ |
|
|
37 | #ifndef NAME_MAX |
|
|
38 | # define NAME_MAX 4096 |
29 | #endif |
39 | #endif |
30 | |
40 | |
31 | #if __ia64 |
41 | #if __ia64 |
32 | # define STACKSIZE 65536 |
42 | # define STACKSIZE 65536 |
33 | #else |
43 | #else |
34 | # define STACKSIZE 4096 |
44 | # define STACKSIZE 8192 |
35 | #endif |
45 | #endif |
36 | |
46 | |
37 | enum { |
47 | enum { |
38 | REQ_QUIT, |
48 | REQ_QUIT, |
39 | REQ_OPEN, REQ_CLOSE, |
49 | REQ_OPEN, REQ_CLOSE, |
40 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
50 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
41 | REQ_SENDFILE, |
51 | REQ_SENDFILE, |
42 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
52 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
43 | REQ_FSYNC, REQ_FDATASYNC, |
53 | REQ_FSYNC, REQ_FDATASYNC, |
44 | REQ_UNLINK, REQ_RMDIR, |
54 | REQ_UNLINK, REQ_RMDIR, |
|
|
55 | REQ_READDIR, |
45 | REQ_SYMLINK, |
56 | REQ_SYMLINK, |
46 | }; |
57 | }; |
47 | |
58 | |
48 | typedef struct aio_cb { |
59 | typedef struct aio_cb { |
49 | struct aio_cb *volatile next; |
60 | struct aio_cb *volatile next; |
50 | |
61 | |
51 | int type; |
62 | int type; |
52 | |
63 | |
|
|
64 | /* should receive a cleanup, with unions */ |
53 | int fd, fd2; |
65 | int fd, fd2; |
54 | off_t offset; |
66 | off_t offset; |
55 | size_t length; |
67 | size_t length; |
56 | ssize_t result; |
68 | ssize_t result; |
57 | mode_t mode; /* open */ |
69 | mode_t mode; /* open */ |
… | |
… | |
93 | Safefree (req->statdata); |
105 | Safefree (req->statdata); |
94 | |
106 | |
95 | if (req->callback) |
107 | if (req->callback) |
96 | SvREFCNT_dec (req->callback); |
108 | SvREFCNT_dec (req->callback); |
97 | |
109 | |
|
|
110 | if (req->type == REQ_READDIR && req->result >= 0) |
|
|
111 | free (req->data2ptr); |
|
|
112 | |
98 | Safefree (req); |
113 | Safefree (req); |
99 | } |
114 | } |
100 | |
115 | |
101 | static void |
116 | static void |
102 | poll_wait () |
117 | poll_wait () |
… | |
… | |
166 | PL_statcache = *(req->statdata); |
181 | PL_statcache = *(req->statdata); |
167 | } |
182 | } |
168 | |
183 | |
169 | ENTER; |
184 | ENTER; |
170 | PUSHMARK (SP); |
185 | PUSHMARK (SP); |
171 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
172 | |
186 | |
173 | if (req->type == REQ_OPEN) |
187 | if (req->type == REQ_READDIR) |
174 | { |
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 | { |
175 | /* convert fd to fh */ |
216 | /* convert fd to fh */ |
176 | SV *fh; |
217 | SV *fh; |
177 | |
218 | |
178 | PUTBACK; |
219 | PUTBACK; |
179 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
220 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
180 | SPAGAIN; |
221 | SPAGAIN; |
181 | |
222 | |
182 | fh = SvREFCNT_inc (POPs); |
223 | fh = SvREFCNT_inc (POPs); |
183 | |
224 | |
184 | PUSHMARK (SP); |
225 | PUSHMARK (SP); |
185 | XPUSHs (sv_2mortal (fh)); |
226 | XPUSHs (sv_2mortal (fh)); |
|
|
227 | } |
186 | } |
228 | } |
187 | |
229 | |
188 | if (SvOK (req->callback)) |
230 | if (SvOK (req->callback)) |
189 | { |
231 | { |
190 | PUTBACK; |
232 | PUTBACK; |
… | |
… | |
313 | |
355 | |
314 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
356 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
315 | croak ("cannot set result pipe to nonblocking mode"); |
357 | croak ("cannot set result pipe to nonblocking mode"); |
316 | } |
358 | } |
317 | |
359 | |
318 | static void atfork_prepare (void) |
|
|
319 | { |
|
|
320 | pthread_mutex_lock (&reqlock); |
|
|
321 | pthread_mutex_lock (&reslock); |
|
|
322 | } |
|
|
323 | |
|
|
324 | static void atfork_parent (void) |
|
|
325 | { |
|
|
326 | pthread_mutex_unlock (&reslock); |
|
|
327 | pthread_mutex_unlock (&reqlock); |
|
|
328 | } |
|
|
329 | |
|
|
330 | static void atfork_child (void) |
|
|
331 | { |
|
|
332 | aio_req prv; |
|
|
333 | |
|
|
334 | started = 0; |
|
|
335 | |
|
|
336 | while (reqs) |
|
|
337 | { |
|
|
338 | prv = reqs; |
|
|
339 | reqs = prv->next; |
|
|
340 | free_req (prv); |
|
|
341 | } |
|
|
342 | |
|
|
343 | reqs = reqe = 0; |
|
|
344 | |
|
|
345 | while (ress) |
|
|
346 | { |
|
|
347 | prv = ress; |
|
|
348 | ress = prv->next; |
|
|
349 | free_req (prv); |
|
|
350 | } |
|
|
351 | |
|
|
352 | ress = rese = 0; |
|
|
353 | |
|
|
354 | close (respipe [0]); |
|
|
355 | close (respipe [1]); |
|
|
356 | create_pipe (); |
|
|
357 | |
|
|
358 | atfork_parent (); |
|
|
359 | } |
|
|
360 | |
|
|
361 | /*****************************************************************************/ |
360 | /*****************************************************************************/ |
362 | /* work around various missing functions */ |
361 | /* work around various missing functions */ |
363 | |
362 | |
364 | #if !HAVE_PREADWRITE |
363 | #if !HAVE_PREADWRITE |
365 | # define pread aio_pread |
364 | # define pread aio_pread |
… | |
… | |
368 | /* |
367 | /* |
369 | * make our pread/pwrite safe against themselves, but not against |
368 | * make our pread/pwrite safe against themselves, but not against |
370 | * 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, |
371 | * but that's your problem, not mine. |
370 | * but that's your problem, not mine. |
372 | */ |
371 | */ |
373 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
372 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
374 | |
373 | |
375 | static ssize_t |
374 | static ssize_t |
376 | pread (int fd, void *buf, size_t count, off_t offset) |
375 | pread (int fd, void *buf, size_t count, off_t offset) |
377 | { |
376 | { |
378 | ssize_t res; |
377 | ssize_t res; |
379 | off_t ooffset; |
378 | off_t ooffset; |
380 | |
379 | |
381 | pthread_mutex_lock (&iolock); |
380 | pthread_mutex_lock (&preadwritelock); |
382 | ooffset = lseek (fd, 0, SEEK_CUR); |
381 | ooffset = lseek (fd, 0, SEEK_CUR); |
383 | lseek (fd, offset, SEEK_SET); |
382 | lseek (fd, offset, SEEK_SET); |
384 | res = read (fd, buf, count); |
383 | res = read (fd, buf, count); |
385 | lseek (fd, ooffset, SEEK_SET); |
384 | lseek (fd, ooffset, SEEK_SET); |
386 | pthread_mutex_unlock (&iolock); |
385 | pthread_mutex_unlock (&preadwritelock); |
387 | |
386 | |
388 | return res; |
387 | return res; |
389 | } |
388 | } |
390 | |
389 | |
391 | static ssize_t |
390 | static ssize_t |
392 | pwrite (int fd, void *buf, size_t count, off_t offset) |
391 | pwrite (int fd, void *buf, size_t count, off_t offset) |
393 | { |
392 | { |
394 | ssize_t res; |
393 | ssize_t res; |
395 | off_t ooffset; |
394 | off_t ooffset; |
396 | |
395 | |
397 | pthread_mutex_lock (&iolock); |
396 | pthread_mutex_lock (&preadwritelock); |
398 | ooffset = lseek (fd, 0, SEEK_CUR); |
397 | ooffset = lseek (fd, 0, SEEK_CUR); |
399 | lseek (fd, offset, SEEK_SET); |
398 | lseek (fd, offset, SEEK_SET); |
400 | res = write (fd, buf, count); |
399 | res = write (fd, buf, count); |
401 | lseek (fd, offset, SEEK_SET); |
400 | lseek (fd, offset, SEEK_SET); |
402 | pthread_mutex_unlock (&iolock); |
401 | pthread_mutex_unlock (&preadwritelock); |
403 | |
402 | |
404 | return res; |
403 | return res; |
405 | } |
404 | } |
406 | #endif |
405 | #endif |
407 | |
406 | |
… | |
… | |
410 | #endif |
409 | #endif |
411 | |
410 | |
412 | #if !HAVE_READAHEAD |
411 | #if !HAVE_READAHEAD |
413 | # define readahead aio_readahead |
412 | # define readahead aio_readahead |
414 | |
413 | |
415 | static char readahead_buf[4096]; |
|
|
416 | |
|
|
417 | static ssize_t |
414 | static ssize_t |
418 | readahead (int fd, off_t offset, size_t count) |
415 | readahead (int fd, off_t offset, size_t count) |
419 | { |
416 | { |
|
|
417 | char readahead_buf[4096]; |
|
|
418 | |
420 | while (count > 0) |
419 | while (count > 0) |
421 | { |
420 | { |
422 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
421 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
423 | |
422 | |
424 | pread (fd, readahead_buf, len, offset); |
423 | pread (fd, readahead_buf, len, offset); |
… | |
… | |
428 | |
427 | |
429 | errno = 0; |
428 | errno = 0; |
430 | } |
429 | } |
431 | #endif |
430 | #endif |
432 | |
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 | |
433 | /* sendfile always needs emulation */ |
463 | /* sendfile always needs emulation */ |
434 | static ssize_t |
464 | static ssize_t |
435 | sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
465 | sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
436 | { |
466 | { |
437 | ssize_t res; |
467 | ssize_t res; |
438 | |
468 | |
439 | if (!count) |
469 | if (!count) |
440 | return 0; |
470 | return 0; |
441 | |
471 | |
|
|
472 | #if HAVE_SENDFILE |
442 | #if __linux |
473 | # if __linux |
443 | res = sendfile (ofd, ifd, &offset, count); |
474 | res = sendfile (ofd, ifd, &offset, count); |
444 | |
475 | |
445 | #elif __freebsd |
476 | # elif __freebsd |
446 | /* |
477 | /* |
447 | * 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 |
448 | * wasted on making it similar to other i/o functions. |
479 | * wasted on making it similar to other I/O functions. |
449 | */ |
480 | */ |
450 | { |
481 | { |
451 | off_t sbytes; |
482 | off_t sbytes; |
452 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
483 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
453 | |
484 | |
454 | if (!res && errno == EAGAIN) |
485 | if (res < 0 && sbytes) |
455 | /* maybe on others, too, as usual, the manpage leaves you guessing */ |
486 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
456 | res = sbytes; |
487 | res = sbytes; |
457 | } |
488 | } |
458 | |
489 | |
459 | #elif __hpux |
490 | # elif __hpux |
460 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
491 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
461 | |
492 | |
|
|
493 | # elif __solaris |
|
|
494 | { |
|
|
495 | struct sendfilevec vec; |
|
|
496 | size_t sbytes; |
|
|
497 | |
|
|
498 | vec.sfv_fd = ifd; |
|
|
499 | vec.sfv_flag = 0; |
|
|
500 | vec.sfv_off = offset; |
|
|
501 | vec.sfv_len = count; |
|
|
502 | |
|
|
503 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
504 | |
|
|
505 | if (res < 0 && sbytes) |
|
|
506 | res = sbytes; |
|
|
507 | } |
|
|
508 | |
|
|
509 | # endif |
462 | #else |
510 | #else |
463 | res = -1; |
511 | res = -1; |
464 | errno = ENOSYS; |
512 | errno = ENOSYS; |
465 | #endif |
513 | #endif |
466 | |
514 | |
|
|
515 | if (res < 0 |
467 | if (res < 0 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK)) |
516 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
517 | #if __solaris |
|
|
518 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
519 | #endif |
|
|
520 | ) |
|
|
521 | ) |
468 | { |
522 | { |
469 | /* emulate sendfile. this is a major pain in the ass */ |
523 | /* emulate sendfile. this is a major pain in the ass */ |
470 | char *buf = malloc (4096); |
524 | char buf[4096]; |
471 | res = 0; |
525 | res = 0; |
472 | |
526 | |
473 | for (;;) |
527 | while (count) |
474 | { |
528 | { |
475 | ssize_t cnt; |
529 | ssize_t cnt; |
476 | |
530 | |
477 | cnt = pread (ifd, buf, 4096, offset); |
531 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
478 | |
532 | |
479 | if (cnt <= 0) |
533 | if (cnt <= 0) |
480 | { |
534 | { |
481 | if (cnt && !res) res = -1; |
535 | if (cnt && !res) res = -1; |
482 | break; |
536 | break; |
483 | } |
537 | } |
484 | |
538 | |
485 | cnt = write (ofd, buf, cnt); |
539 | cnt = write (ofd, buf, cnt); |
486 | |
540 | |
487 | if (cnt <= 0) |
541 | if (cnt <= 0) |
488 | { |
542 | { |
489 | if (cnt && !res) res = -1; |
543 | if (cnt && !res) res = -1; |
490 | break; |
544 | break; |
491 | } |
545 | } |
492 | |
546 | |
493 | offset += cnt; |
547 | offset += cnt; |
494 | res += cnt; |
548 | res += cnt; |
|
|
549 | count -= cnt; |
495 | } |
550 | } |
496 | |
|
|
497 | { |
|
|
498 | int errorno = errno; |
|
|
499 | free (buf); |
|
|
500 | errno = errorno; |
|
|
501 | } |
|
|
502 | } |
551 | } |
503 | |
552 | |
504 | 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; |
505 | } |
618 | } |
506 | |
619 | |
507 | /*****************************************************************************/ |
620 | /*****************************************************************************/ |
508 | |
621 | |
509 | static void * |
622 | static void * |
… | |
… | |
556 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
669 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
557 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
670 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
558 | |
671 | |
559 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
672 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
560 | 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; |
561 | |
675 | |
562 | case REQ_QUIT: |
676 | case REQ_QUIT: |
563 | break; |
677 | break; |
564 | |
678 | |
565 | default: |
679 | default: |
… | |
… | |
589 | pthread_mutex_unlock (&reslock); |
703 | pthread_mutex_unlock (&reslock); |
590 | } |
704 | } |
591 | while (type != REQ_QUIT); |
705 | while (type != REQ_QUIT); |
592 | |
706 | |
593 | 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 (); |
594 | } |
765 | } |
595 | |
766 | |
596 | #define dREQ \ |
767 | #define dREQ \ |
597 | aio_req req; \ |
768 | aio_req req; \ |
598 | \ |
769 | \ |
… | |
… | |
849 | |
1020 | |
850 | send_req (req); |
1021 | send_req (req); |
851 | } |
1022 | } |
852 | |
1023 | |
853 | 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 |
854 | flush() |
1040 | flush() |
855 | PROTOTYPE: |
1041 | PROTOTYPE: |
856 | CODE: |
1042 | CODE: |
857 | while (nreqs) |
1043 | while (nreqs) |
858 | { |
1044 | { |