… | |
… | |
47 | /* used for struct dirent, AIX doesn't provide it */ |
47 | /* used for struct dirent, AIX doesn't provide it */ |
48 | #ifndef NAME_MAX |
48 | #ifndef NAME_MAX |
49 | # define NAME_MAX 4096 |
49 | # define NAME_MAX 4096 |
50 | #endif |
50 | #endif |
51 | |
51 | |
|
|
52 | #ifndef PTHREAD_STACK_MIN |
|
|
53 | /* care for broken platforms, e.g. windows */ |
|
|
54 | # define PTHREAD_STACK_MIN 16384 |
|
|
55 | #endif |
|
|
56 | |
52 | #if __ia64 |
57 | #if __ia64 |
53 | # define STACKSIZE 65536 |
58 | # define STACKSIZE 65536 |
54 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
59 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
55 | # define STACKSIZE PTHREAD_STACK_MIN |
60 | # define STACKSIZE PTHREAD_STACK_MIN |
56 | #else |
61 | #else |
… | |
… | |
59 | |
64 | |
60 | /* buffer size for various temporary buffers */ |
65 | /* buffer size for various temporary buffers */ |
61 | #define AIO_BUFSIZE 65536 |
66 | #define AIO_BUFSIZE 65536 |
62 | |
67 | |
63 | #define dBUF \ |
68 | #define dBUF \ |
|
|
69 | char *aio_buf; \ |
|
|
70 | LOCK (wrklock); \ |
64 | char *aio_buf = malloc (AIO_BUFSIZE); \ |
71 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
|
|
72 | UNLOCK (wrklock); \ |
65 | if (!aio_buf) \ |
73 | if (!aio_buf) \ |
66 | return -1; |
74 | return -1; |
67 | |
|
|
68 | #define fBUF free (aio_buf) |
|
|
69 | |
75 | |
70 | enum { |
76 | enum { |
71 | REQ_QUIT, |
77 | REQ_QUIT, |
72 | REQ_OPEN, REQ_CLOSE, |
78 | REQ_OPEN, REQ_CLOSE, |
73 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
79 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
… | |
… | |
127 | |
133 | |
128 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
134 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
129 | |
135 | |
130 | static int started, wanted; |
136 | static int started, wanted; |
131 | static volatile int nreqs; |
137 | static volatile int nreqs; |
132 | static int max_outstanding = 1<<30; |
|
|
133 | static int respipe [2]; |
138 | static int respipe [2]; |
134 | |
139 | |
135 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
140 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
136 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
141 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
137 | #else |
142 | #else |
138 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
143 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
139 | #endif |
144 | #endif |
|
|
145 | |
|
|
146 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
|
|
147 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
|
|
148 | |
|
|
149 | /* worker threasd management */ |
|
|
150 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
|
|
151 | |
|
|
152 | typedef struct worker { |
|
|
153 | /* locked by wrklock */ |
|
|
154 | struct worker *prev, *next; |
|
|
155 | |
|
|
156 | pthread_t tid; |
|
|
157 | |
|
|
158 | /* locked by reslock, reqlock or wrklock */ |
|
|
159 | aio_req req; /* currently processed request */ |
|
|
160 | void *dbuf; |
|
|
161 | DIR *dirp; |
|
|
162 | } worker; |
|
|
163 | |
|
|
164 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
|
|
165 | |
|
|
166 | static void worker_clear (worker *wrk) |
|
|
167 | { |
|
|
168 | if (wrk->dirp) |
|
|
169 | { |
|
|
170 | closedir (wrk->dirp); |
|
|
171 | wrk->dirp = 0; |
|
|
172 | } |
|
|
173 | |
|
|
174 | if (wrk->dbuf) |
|
|
175 | { |
|
|
176 | free (wrk->dbuf); |
|
|
177 | wrk->dbuf = 0; |
|
|
178 | } |
|
|
179 | } |
|
|
180 | |
|
|
181 | static void worker_free (worker *wrk) |
|
|
182 | { |
|
|
183 | wrk->next->prev = wrk->prev; |
|
|
184 | wrk->prev->next = wrk->next; |
|
|
185 | |
|
|
186 | free (wrk); |
|
|
187 | } |
140 | |
188 | |
141 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
189 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
142 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
190 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
143 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
191 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
144 | |
192 | |
… | |
… | |
194 | } |
242 | } |
195 | |
243 | |
196 | abort (); |
244 | abort (); |
197 | } |
245 | } |
198 | |
246 | |
|
|
247 | static int poll_cb (); |
199 | static void req_invoke (aio_req req); |
248 | static void req_invoke (aio_req req); |
200 | static void req_free (aio_req req); |
249 | static void req_free (aio_req req); |
|
|
250 | static void req_cancel (aio_req req); |
201 | |
251 | |
202 | /* must be called at most once */ |
252 | /* must be called at most once */ |
203 | static SV *req_sv (aio_req req, const char *klass) |
253 | static SV *req_sv (aio_req req, const char *klass) |
204 | { |
254 | { |
205 | if (!req->self) |
255 | if (!req->self) |
… | |
… | |
274 | fd_set rfd; |
324 | fd_set rfd; |
275 | |
325 | |
276 | while (nreqs) |
326 | while (nreqs) |
277 | { |
327 | { |
278 | int size; |
328 | int size; |
279 | #if !(__i386 || __x86_64) /* safe without sempahore on this archs */ |
329 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
280 | pthread_mutex_lock (&reslock); |
330 | LOCK (reslock); |
281 | #endif |
331 | #endif |
282 | size = res_queue.size; |
332 | size = res_queue.size; |
283 | #if !(__i386 || __x86_64) /* safe without sempahore on this archs */ |
333 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
284 | pthread_mutex_unlock (&reslock); |
334 | UNLOCK (reslock); |
285 | #endif |
335 | #endif |
286 | |
336 | |
287 | if (size) |
337 | if (size) |
288 | return; |
338 | return; |
289 | |
339 | |
… | |
… | |
313 | { |
363 | { |
314 | SV *rv = &PL_sv_undef; |
364 | SV *rv = &PL_sv_undef; |
315 | |
365 | |
316 | if (req->result >= 0) |
366 | if (req->result >= 0) |
317 | { |
367 | { |
|
|
368 | int i; |
318 | char *buf = req->data2ptr; |
369 | char *buf = req->data2ptr; |
319 | AV *av = newAV (); |
370 | AV *av = newAV (); |
320 | |
371 | |
321 | while (req->result) |
372 | av_extend (av, req->result - 1); |
|
|
373 | |
|
|
374 | for (i = 0; i < req->result; ++i) |
322 | { |
375 | { |
323 | SV *sv = newSVpv (buf, 0); |
376 | SV *sv = newSVpv (buf, 0); |
324 | |
377 | |
325 | av_push (av, sv); |
378 | av_store (av, i, sv); |
326 | buf += SvCUR (sv) + 1; |
379 | buf += SvCUR (sv) + 1; |
327 | req->result--; |
|
|
328 | } |
380 | } |
329 | |
381 | |
330 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
382 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
331 | } |
383 | } |
332 | |
384 | |
… | |
… | |
416 | SvREFCNT_dec (req->fh); |
468 | SvREFCNT_dec (req->fh); |
417 | SvREFCNT_dec (req->fh2); |
469 | SvREFCNT_dec (req->fh2); |
418 | SvREFCNT_dec (req->callback); |
470 | SvREFCNT_dec (req->callback); |
419 | Safefree (req->statdata); |
471 | Safefree (req->statdata); |
420 | |
472 | |
421 | if (req->type == REQ_READDIR && req->result >= 0) |
473 | if (req->type == REQ_READDIR) |
422 | free (req->data2ptr); |
474 | free (req->data2ptr); |
423 | |
475 | |
424 | Safefree (req); |
476 | Safefree (req); |
425 | } |
477 | } |
426 | |
478 | |
|
|
479 | static void req_cancel_subs (aio_req grp) |
|
|
480 | { |
|
|
481 | aio_req sub; |
|
|
482 | |
|
|
483 | if (grp->type != REQ_GROUP) |
|
|
484 | return; |
|
|
485 | |
|
|
486 | SvREFCNT_dec (grp->fh2); |
|
|
487 | grp->fh2 = 0; |
|
|
488 | |
|
|
489 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
|
|
490 | req_cancel (sub); |
|
|
491 | } |
|
|
492 | |
427 | static void req_cancel (aio_req req) |
493 | static void req_cancel (aio_req req) |
428 | { |
494 | { |
429 | req->flags |= FLAG_CANCELLED; |
495 | req->flags |= FLAG_CANCELLED; |
430 | |
496 | |
431 | if (req->type == REQ_GROUP) |
497 | req_cancel_subs (req); |
432 | { |
|
|
433 | aio_req sub; |
|
|
434 | |
|
|
435 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
|
|
436 | req_cancel (sub); |
|
|
437 | } |
|
|
438 | } |
498 | } |
439 | |
499 | |
440 | static int poll_cb () |
500 | static int poll_cb () |
441 | { |
501 | { |
442 | dSP; |
502 | dSP; |
… | |
… | |
444 | int do_croak = 0; |
504 | int do_croak = 0; |
445 | aio_req req; |
505 | aio_req req; |
446 | |
506 | |
447 | for (;;) |
507 | for (;;) |
448 | { |
508 | { |
449 | pthread_mutex_lock (&reslock); |
509 | LOCK (reslock); |
450 | req = reqq_shift (&res_queue); |
510 | req = reqq_shift (&res_queue); |
451 | |
511 | |
452 | if (req) |
512 | if (req) |
453 | { |
513 | { |
454 | if (!res_queue.size) |
514 | if (!res_queue.size) |
… | |
… | |
458 | while (read (respipe [0], buf, 32) == 32) |
518 | while (read (respipe [0], buf, 32) == 32) |
459 | ; |
519 | ; |
460 | } |
520 | } |
461 | } |
521 | } |
462 | |
522 | |
463 | pthread_mutex_unlock (&reslock); |
523 | UNLOCK (reslock); |
464 | |
524 | |
465 | if (!req) |
525 | if (!req) |
466 | break; |
526 | break; |
467 | |
527 | |
468 | --nreqs; |
528 | --nreqs; |
… | |
… | |
503 | static void *aio_proc(void *arg); |
563 | static void *aio_proc(void *arg); |
504 | |
564 | |
505 | static void start_thread (void) |
565 | static void start_thread (void) |
506 | { |
566 | { |
507 | sigset_t fullsigset, oldsigset; |
567 | sigset_t fullsigset, oldsigset; |
508 | pthread_t tid; |
|
|
509 | pthread_attr_t attr; |
568 | pthread_attr_t attr; |
|
|
569 | |
|
|
570 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
571 | |
|
|
572 | if (!wrk) |
|
|
573 | croak ("unable to allocate worker thread data"); |
510 | |
574 | |
511 | pthread_attr_init (&attr); |
575 | pthread_attr_init (&attr); |
512 | pthread_attr_setstacksize (&attr, STACKSIZE); |
576 | pthread_attr_setstacksize (&attr, STACKSIZE); |
513 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
577 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
514 | |
578 | |
515 | sigfillset (&fullsigset); |
579 | sigfillset (&fullsigset); |
|
|
580 | |
|
|
581 | LOCK (wrklock); |
516 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
582 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
517 | |
583 | |
518 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
584 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
|
|
585 | { |
|
|
586 | wrk->prev = &wrk_first; |
|
|
587 | wrk->next = wrk_first.next; |
|
|
588 | wrk_first.next->prev = wrk; |
|
|
589 | wrk_first.next = wrk; |
519 | started++; |
590 | started++; |
|
|
591 | } |
|
|
592 | else |
|
|
593 | free (wrk); |
520 | |
594 | |
521 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
595 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
596 | UNLOCK (wrklock); |
522 | } |
597 | } |
523 | |
598 | |
524 | static void req_send (aio_req req) |
599 | static void req_send (aio_req req) |
525 | { |
600 | { |
526 | while (started < wanted && nreqs >= started) |
601 | while (started < wanted && nreqs >= started) |
527 | start_thread (); |
602 | start_thread (); |
528 | |
603 | |
529 | ++nreqs; |
604 | ++nreqs; |
530 | |
605 | |
531 | pthread_mutex_lock (&reqlock); |
606 | LOCK (reqlock); |
532 | reqq_push (&req_queue, req); |
607 | reqq_push (&req_queue, req); |
533 | pthread_cond_signal (&reqwait); |
608 | pthread_cond_signal (&reqwait); |
534 | pthread_mutex_unlock (&reqlock); |
609 | UNLOCK (reqlock); |
535 | |
|
|
536 | if (nreqs > max_outstanding) |
|
|
537 | for (;;) |
|
|
538 | { |
|
|
539 | poll_cb (); |
|
|
540 | |
|
|
541 | if (nreqs <= max_outstanding) |
|
|
542 | break; |
|
|
543 | |
|
|
544 | poll_wait (); |
|
|
545 | } |
|
|
546 | } |
610 | } |
547 | |
611 | |
548 | static void end_thread (void) |
612 | static void end_thread (void) |
549 | { |
613 | { |
550 | aio_req req; |
614 | aio_req req; |
… | |
… | |
612 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
676 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
613 | { |
677 | { |
614 | ssize_t res; |
678 | ssize_t res; |
615 | off_t ooffset; |
679 | off_t ooffset; |
616 | |
680 | |
617 | pthread_mutex_lock (&preadwritelock); |
681 | LOCK (preadwritelock); |
618 | ooffset = lseek (fd, 0, SEEK_CUR); |
682 | ooffset = lseek (fd, 0, SEEK_CUR); |
619 | lseek (fd, offset, SEEK_SET); |
683 | lseek (fd, offset, SEEK_SET); |
620 | res = read (fd, buf, count); |
684 | res = read (fd, buf, count); |
621 | lseek (fd, ooffset, SEEK_SET); |
685 | lseek (fd, ooffset, SEEK_SET); |
622 | pthread_mutex_unlock (&preadwritelock); |
686 | UNLOCK (preadwritelock); |
623 | |
687 | |
624 | return res; |
688 | return res; |
625 | } |
689 | } |
626 | |
690 | |
627 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
691 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
628 | { |
692 | { |
629 | ssize_t res; |
693 | ssize_t res; |
630 | off_t ooffset; |
694 | off_t ooffset; |
631 | |
695 | |
632 | pthread_mutex_lock (&preadwritelock); |
696 | LOCK (preadwritelock); |
633 | ooffset = lseek (fd, 0, SEEK_CUR); |
697 | ooffset = lseek (fd, 0, SEEK_CUR); |
634 | lseek (fd, offset, SEEK_SET); |
698 | lseek (fd, offset, SEEK_SET); |
635 | res = write (fd, buf, count); |
699 | res = write (fd, buf, count); |
636 | lseek (fd, offset, SEEK_SET); |
700 | lseek (fd, offset, SEEK_SET); |
637 | pthread_mutex_unlock (&preadwritelock); |
701 | UNLOCK (preadwritelock); |
638 | |
702 | |
639 | return res; |
703 | return res; |
640 | } |
704 | } |
641 | #endif |
705 | #endif |
642 | |
706 | |
643 | #if !HAVE_FDATASYNC |
707 | #if !HAVE_FDATASYNC |
644 | # define fdatasync fsync |
708 | # define fdatasync fsync |
645 | #endif |
709 | #endif |
646 | |
710 | |
647 | #if !HAVE_READAHEAD |
711 | #if !HAVE_READAHEAD |
648 | # define readahead aio_readahead |
712 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
649 | |
713 | |
650 | static ssize_t readahead (int fd, off_t offset, size_t count) |
714 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
651 | { |
715 | { |
652 | dBUF; |
716 | dBUF; |
653 | |
717 | |
654 | while (count > 0) |
718 | while (count > 0) |
655 | { |
719 | { |
… | |
… | |
658 | pread (fd, aio_buf, len, offset); |
722 | pread (fd, aio_buf, len, offset); |
659 | offset += len; |
723 | offset += len; |
660 | count -= len; |
724 | count -= len; |
661 | } |
725 | } |
662 | |
726 | |
663 | fBUF; |
|
|
664 | |
|
|
665 | errno = 0; |
727 | errno = 0; |
666 | } |
728 | } |
|
|
729 | |
667 | #endif |
730 | #endif |
668 | |
731 | |
669 | #if !HAVE_READDIR_R |
732 | #if !HAVE_READDIR_R |
670 | # define readdir_r aio_readdir_r |
733 | # define readdir_r aio_readdir_r |
671 | |
734 | |
… | |
… | |
674 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
737 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
675 | { |
738 | { |
676 | struct dirent *e; |
739 | struct dirent *e; |
677 | int errorno; |
740 | int errorno; |
678 | |
741 | |
679 | pthread_mutex_lock (&readdirlock); |
742 | LOCK (readdirlock); |
680 | |
743 | |
681 | e = readdir (dirp); |
744 | e = readdir (dirp); |
682 | errorno = errno; |
745 | errorno = errno; |
683 | |
746 | |
684 | if (e) |
747 | if (e) |
… | |
… | |
687 | strcpy (ent->d_name, e->d_name); |
750 | strcpy (ent->d_name, e->d_name); |
688 | } |
751 | } |
689 | else |
752 | else |
690 | *res = 0; |
753 | *res = 0; |
691 | |
754 | |
692 | pthread_mutex_unlock (&readdirlock); |
755 | UNLOCK (readdirlock); |
693 | |
756 | |
694 | errno = errorno; |
757 | errno = errorno; |
695 | return e ? 0 : -1; |
758 | return e ? 0 : -1; |
696 | } |
759 | } |
697 | #endif |
760 | #endif |
698 | |
761 | |
699 | /* sendfile always needs emulation */ |
762 | /* sendfile always needs emulation */ |
700 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
763 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
701 | { |
764 | { |
702 | ssize_t res; |
765 | ssize_t res; |
703 | |
766 | |
704 | if (!count) |
767 | if (!count) |
705 | return 0; |
768 | return 0; |
… | |
… | |
782 | |
845 | |
783 | offset += cnt; |
846 | offset += cnt; |
784 | res += cnt; |
847 | res += cnt; |
785 | count -= cnt; |
848 | count -= cnt; |
786 | } |
849 | } |
787 | |
|
|
788 | fBUF; |
|
|
789 | } |
850 | } |
790 | |
851 | |
791 | return res; |
852 | return res; |
792 | } |
853 | } |
793 | |
854 | |
794 | /* read a full directory */ |
855 | /* read a full directory */ |
795 | static int scandir_ (const char *path, void **namesp) |
856 | static void scandir_ (aio_req req, worker *self) |
796 | { |
857 | { |
797 | DIR *dirp; |
858 | DIR *dirp; |
798 | union |
859 | union |
799 | { |
860 | { |
800 | struct dirent d; |
861 | struct dirent d; |
… | |
… | |
805 | int memlen = 4096; |
866 | int memlen = 4096; |
806 | int memofs = 0; |
867 | int memofs = 0; |
807 | int res = 0; |
868 | int res = 0; |
808 | int errorno; |
869 | int errorno; |
809 | |
870 | |
810 | dirp = opendir (path); |
871 | LOCK (wrklock); |
811 | if (!dirp) |
872 | self->dirp = dirp = opendir (req->dataptr); |
812 | return -1; |
|
|
813 | |
|
|
814 | u = malloc (sizeof (*u)); |
873 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
874 | UNLOCK (wrklock); |
|
|
875 | |
815 | names = malloc (memlen); |
876 | req->data2ptr = names = malloc (memlen); |
816 | |
877 | |
817 | if (u && names) |
878 | if (dirp && u && names) |
818 | for (;;) |
879 | for (;;) |
819 | { |
880 | { |
820 | errno = 0; |
881 | errno = 0; |
821 | readdir_r (dirp, &u->d, &entp); |
882 | readdir_r (dirp, &u->d, &entp); |
822 | |
883 | |
… | |
… | |
832 | res++; |
893 | res++; |
833 | |
894 | |
834 | while (memofs + len > memlen) |
895 | while (memofs + len > memlen) |
835 | { |
896 | { |
836 | memlen *= 2; |
897 | memlen *= 2; |
|
|
898 | LOCK (wrklock); |
837 | names = realloc (names, memlen); |
899 | req->data2ptr = names = realloc (names, memlen); |
|
|
900 | UNLOCK (wrklock); |
|
|
901 | |
838 | if (!names) |
902 | if (!names) |
839 | break; |
903 | break; |
840 | } |
904 | } |
841 | |
905 | |
842 | memcpy (names + memofs, name, len); |
906 | memcpy (names + memofs, name, len); |
843 | memofs += len; |
907 | memofs += len; |
844 | } |
908 | } |
845 | } |
909 | } |
846 | |
910 | |
847 | errorno = errno; |
|
|
848 | free (u); |
|
|
849 | closedir (dirp); |
|
|
850 | |
|
|
851 | if (errorno) |
911 | if (errno) |
852 | { |
|
|
853 | free (names); |
|
|
854 | errno = errorno; |
|
|
855 | res = -1; |
912 | res = -1; |
856 | } |
913 | |
857 | |
914 | req->result = res; |
858 | *namesp = (void *)names; |
|
|
859 | return res; |
|
|
860 | } |
915 | } |
861 | |
916 | |
862 | /*****************************************************************************/ |
917 | /*****************************************************************************/ |
863 | |
918 | |
864 | static void *aio_proc (void *thr_arg) |
919 | static void *aio_proc (void *thr_arg) |
865 | { |
920 | { |
866 | aio_req req; |
921 | aio_req req; |
867 | int type; |
922 | int type; |
|
|
923 | worker *self = (worker *)thr_arg; |
868 | |
924 | |
869 | do |
925 | do |
870 | { |
926 | { |
871 | pthread_mutex_lock (&reqlock); |
927 | LOCK (reqlock); |
872 | |
928 | |
873 | for (;;) |
929 | for (;;) |
874 | { |
930 | { |
875 | req = reqq_shift (&req_queue); |
931 | self->req = req = reqq_shift (&req_queue); |
876 | |
932 | |
877 | if (req) |
933 | if (req) |
878 | break; |
934 | break; |
879 | |
935 | |
880 | pthread_cond_wait (&reqwait, &reqlock); |
936 | pthread_cond_wait (&reqwait, &reqlock); |
881 | } |
937 | } |
882 | |
938 | |
883 | pthread_mutex_unlock (&reqlock); |
939 | UNLOCK (reqlock); |
884 | |
940 | |
885 | errno = 0; /* strictly unnecessary */ |
941 | errno = 0; /* strictly unnecessary */ |
886 | type = req->type; /* remember type for QUIT check */ |
942 | type = req->type; /* remember type for QUIT check */ |
887 | |
943 | |
888 | if (!(req->flags & FLAG_CANCELLED)) |
944 | if (!(req->flags & FLAG_CANCELLED)) |
… | |
… | |
890 | { |
946 | { |
891 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
947 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
892 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
948 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
893 | |
949 | |
894 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
950 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
895 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
951 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break; |
896 | |
952 | |
897 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
953 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
898 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
954 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
899 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
955 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
900 | |
956 | |
… | |
… | |
906 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
962 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
907 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
963 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
908 | |
964 | |
909 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
965 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
910 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
966 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
911 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
967 | case REQ_READDIR: scandir_ (req, self); break; |
912 | |
968 | |
913 | case REQ_BUSY: |
969 | case REQ_BUSY: |
914 | { |
970 | { |
915 | struct timeval tv; |
971 | struct timeval tv; |
916 | |
972 | |
… | |
… | |
930 | break; |
986 | break; |
931 | } |
987 | } |
932 | |
988 | |
933 | req->errorno = errno; |
989 | req->errorno = errno; |
934 | |
990 | |
935 | pthread_mutex_lock (&reslock); |
991 | LOCK (reslock); |
936 | |
992 | |
937 | if (!reqq_push (&res_queue, req)) |
993 | if (!reqq_push (&res_queue, req)) |
938 | /* write a dummy byte to the pipe so fh becomes ready */ |
994 | /* write a dummy byte to the pipe so fh becomes ready */ |
939 | write (respipe [1], &respipe, 1); |
995 | write (respipe [1], &respipe, 1); |
940 | |
996 | |
941 | pthread_mutex_unlock (&reslock); |
997 | self->req = 0; |
|
|
998 | worker_clear (self); |
|
|
999 | |
|
|
1000 | UNLOCK (reslock); |
942 | } |
1001 | } |
943 | while (type != REQ_QUIT); |
1002 | while (type != REQ_QUIT); |
944 | |
1003 | |
|
|
1004 | LOCK (wrklock); |
|
|
1005 | worker_free (self); |
|
|
1006 | UNLOCK (wrklock); |
|
|
1007 | |
945 | return 0; |
1008 | return 0; |
946 | } |
1009 | } |
947 | |
1010 | |
948 | /*****************************************************************************/ |
1011 | /*****************************************************************************/ |
949 | |
1012 | |
950 | static void atfork_prepare (void) |
1013 | static void atfork_prepare (void) |
951 | { |
1014 | { |
952 | pthread_mutex_lock (&reqlock); |
1015 | LOCK (wrklock); |
953 | pthread_mutex_lock (&reslock); |
1016 | LOCK (reqlock); |
|
|
1017 | LOCK (reslock); |
954 | #if !HAVE_PREADWRITE |
1018 | #if !HAVE_PREADWRITE |
955 | pthread_mutex_lock (&preadwritelock); |
1019 | LOCK (preadwritelock); |
956 | #endif |
1020 | #endif |
957 | #if !HAVE_READDIR_R |
1021 | #if !HAVE_READDIR_R |
958 | pthread_mutex_lock (&readdirlock); |
1022 | LOCK (readdirlock); |
959 | #endif |
1023 | #endif |
960 | } |
1024 | } |
961 | |
1025 | |
962 | static void atfork_parent (void) |
1026 | static void atfork_parent (void) |
963 | { |
1027 | { |
964 | #if !HAVE_READDIR_R |
1028 | #if !HAVE_READDIR_R |
965 | pthread_mutex_unlock (&readdirlock); |
1029 | UNLOCK (readdirlock); |
966 | #endif |
1030 | #endif |
967 | #if !HAVE_PREADWRITE |
1031 | #if !HAVE_PREADWRITE |
968 | pthread_mutex_unlock (&preadwritelock); |
1032 | UNLOCK (preadwritelock); |
969 | #endif |
1033 | #endif |
970 | pthread_mutex_unlock (&reslock); |
1034 | UNLOCK (reslock); |
971 | pthread_mutex_unlock (&reqlock); |
1035 | UNLOCK (reqlock); |
|
|
1036 | UNLOCK (wrklock); |
972 | } |
1037 | } |
973 | |
1038 | |
974 | static void atfork_child (void) |
1039 | static void atfork_child (void) |
975 | { |
1040 | { |
976 | aio_req prv; |
1041 | aio_req prv; |
977 | |
|
|
978 | started = 0; |
|
|
979 | |
1042 | |
980 | while (prv = reqq_shift (&req_queue)) |
1043 | while (prv = reqq_shift (&req_queue)) |
981 | req_free (prv); |
1044 | req_free (prv); |
982 | |
1045 | |
983 | while (prv = reqq_shift (&res_queue)) |
1046 | while (prv = reqq_shift (&res_queue)) |
984 | req_free (prv); |
1047 | req_free (prv); |
985 | |
1048 | |
|
|
1049 | while (wrk_first.next != &wrk_first) |
|
|
1050 | { |
|
|
1051 | worker *wrk = wrk_first.next; |
|
|
1052 | |
|
|
1053 | if (wrk->req) |
|
|
1054 | req_free (wrk->req); |
|
|
1055 | |
|
|
1056 | worker_clear (wrk); |
|
|
1057 | worker_free (wrk); |
|
|
1058 | } |
|
|
1059 | |
|
|
1060 | started = 0; |
|
|
1061 | nreqs = 0; |
|
|
1062 | |
986 | close (respipe [0]); |
1063 | close (respipe [0]); |
987 | close (respipe [1]); |
1064 | close (respipe [1]); |
988 | create_pipe (); |
1065 | create_pipe (); |
989 | |
1066 | |
990 | atfork_parent (); |
1067 | atfork_parent (); |
… | |
… | |
1034 | void |
1111 | void |
1035 | max_parallel (nthreads) |
1112 | max_parallel (nthreads) |
1036 | int nthreads |
1113 | int nthreads |
1037 | PROTOTYPE: $ |
1114 | PROTOTYPE: $ |
1038 | |
1115 | |
1039 | int |
|
|
1040 | max_outstanding (nreqs) |
|
|
1041 | int nreqs |
|
|
1042 | PROTOTYPE: $ |
|
|
1043 | CODE: |
|
|
1044 | RETVAL = max_outstanding; |
|
|
1045 | max_outstanding = nreqs; |
|
|
1046 | |
|
|
1047 | void |
1116 | void |
1048 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1117 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1049 | SV * pathname |
1118 | SV * pathname |
1050 | int flags |
1119 | int flags |
1051 | int mode |
1120 | int mode |
… | |
… | |
1422 | } |
1491 | } |
1423 | } |
1492 | } |
1424 | } |
1493 | } |
1425 | |
1494 | |
1426 | void |
1495 | void |
|
|
1496 | cancel_subs (aio_req_ornot req) |
|
|
1497 | CODE: |
|
|
1498 | req_cancel_subs (req); |
|
|
1499 | |
|
|
1500 | void |
1427 | result (aio_req grp, ...) |
1501 | result (aio_req grp, ...) |
1428 | CODE: |
1502 | CODE: |
1429 | { |
1503 | { |
1430 | int i; |
1504 | int i; |
1431 | AV *av = newAV (); |
1505 | AV *av = newAV (); |