… | |
… | |
61 | # define STACKSIZE PTHREAD_STACK_MIN |
61 | # define STACKSIZE PTHREAD_STACK_MIN |
62 | #else |
62 | #else |
63 | # define STACKSIZE 16384 |
63 | # define STACKSIZE 16384 |
64 | #endif |
64 | #endif |
65 | |
65 | |
|
|
66 | /* wether word reads are potentially non-atomic. |
|
|
67 | * this is conservatice, likely most arches this runs |
|
|
68 | * on have atomic word read/writes. |
|
|
69 | */ |
|
|
70 | #ifndef WORDREAD_UNSAFE |
|
|
71 | # if __i386 || __x86_64 |
|
|
72 | # define WORDREAD_UNSAFE 0 |
|
|
73 | # else |
|
|
74 | # define WORDREAD_UNSAFE 1 |
|
|
75 | # endif |
|
|
76 | #endif |
|
|
77 | |
66 | /* buffer size for various temporary buffers */ |
78 | /* buffer size for various temporary buffers */ |
67 | #define AIO_BUFSIZE 65536 |
79 | #define AIO_BUFSIZE 65536 |
68 | |
80 | |
69 | #define dBUF \ |
81 | #define dBUF \ |
70 | char *aio_buf; \ |
82 | char *aio_buf; \ |
… | |
… | |
80 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
92 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
81 | REQ_SENDFILE, |
93 | REQ_SENDFILE, |
82 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
94 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
83 | REQ_FSYNC, REQ_FDATASYNC, |
95 | REQ_FSYNC, REQ_FDATASYNC, |
84 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
96 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
85 | REQ_READDIR, |
97 | REQ_MKNOD, REQ_READDIR, |
86 | REQ_LINK, REQ_SYMLINK, |
98 | REQ_LINK, REQ_SYMLINK, |
87 | REQ_GROUP, REQ_NOP, |
99 | REQ_GROUP, REQ_NOP, |
88 | REQ_BUSY, |
100 | REQ_BUSY, |
89 | }; |
101 | }; |
90 | |
102 | |
… | |
… | |
132 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
144 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
133 | }; |
145 | }; |
134 | |
146 | |
135 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
147 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
136 | |
148 | |
137 | static int started, wanted; |
149 | static unsigned int started, wanted; |
138 | static volatile int nreqs; |
|
|
139 | static int respipe [2]; |
|
|
140 | |
150 | |
141 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
151 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
142 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
152 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
143 | #else |
153 | #else |
144 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
154 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
… | |
… | |
185 | wrk->prev->next = wrk->next; |
195 | wrk->prev->next = wrk->next; |
186 | |
196 | |
187 | free (wrk); |
197 | free (wrk); |
188 | } |
198 | } |
189 | |
199 | |
|
|
200 | static volatile unsigned int nreqs, nready, npending; |
|
|
201 | static volatile unsigned int max_outstanding = 0xffffffff; |
|
|
202 | static int respipe [2]; |
|
|
203 | |
190 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
204 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
191 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
205 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
192 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
206 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
|
|
207 | |
|
|
208 | #if WORDREAD_UNSAFE |
|
|
209 | |
|
|
210 | static unsigned int get_nready () |
|
|
211 | { |
|
|
212 | unsigned int retval; |
|
|
213 | |
|
|
214 | LOCK (reqlock); |
|
|
215 | retval = nready; |
|
|
216 | UNLOCK (reqlock); |
|
|
217 | |
|
|
218 | return retval; |
|
|
219 | } |
|
|
220 | |
|
|
221 | static unsigned int get_npending () |
|
|
222 | { |
|
|
223 | unsigned int retval; |
|
|
224 | |
|
|
225 | LOCK (reslock); |
|
|
226 | retval = npending; |
|
|
227 | UNLOCK (reslock); |
|
|
228 | |
|
|
229 | return retval; |
|
|
230 | } |
|
|
231 | |
|
|
232 | #else |
|
|
233 | |
|
|
234 | # define get_nready() nready |
|
|
235 | # define get_npending() npending |
|
|
236 | |
|
|
237 | #endif |
193 | |
238 | |
194 | /* |
239 | /* |
195 | * a somewhat faster data structure might be nice, but |
240 | * a somewhat faster data structure might be nice, but |
196 | * with 8 priorities this actually needs <20 insns |
241 | * with 8 priorities this actually needs <20 insns |
197 | * per shift, the most expensive operation. |
242 | * per shift, the most expensive operation. |
… | |
… | |
318 | req_invoke (grp); |
363 | req_invoke (grp); |
319 | req_free (grp); |
364 | req_free (grp); |
320 | } |
365 | } |
321 | } |
366 | } |
322 | |
367 | |
323 | static void poll_wait () |
|
|
324 | { |
|
|
325 | fd_set rfd; |
|
|
326 | |
|
|
327 | while (nreqs) |
|
|
328 | { |
|
|
329 | int size; |
|
|
330 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
|
|
331 | LOCK (reslock); |
|
|
332 | #endif |
|
|
333 | size = res_queue.size; |
|
|
334 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
|
|
335 | UNLOCK (reslock); |
|
|
336 | #endif |
|
|
337 | |
|
|
338 | if (size) |
|
|
339 | return; |
|
|
340 | |
|
|
341 | FD_ZERO(&rfd); |
|
|
342 | FD_SET(respipe [0], &rfd); |
|
|
343 | |
|
|
344 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
|
|
345 | } |
|
|
346 | } |
|
|
347 | |
|
|
348 | static void req_invoke (aio_req req) |
368 | static void req_invoke (aio_req req) |
349 | { |
369 | { |
350 | dSP; |
370 | dSP; |
351 | |
371 | |
352 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
372 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
353 | { |
373 | { |
354 | errno = req->errorno; |
|
|
355 | |
|
|
356 | ENTER; |
374 | ENTER; |
357 | SAVETMPS; |
375 | SAVETMPS; |
358 | PUSHMARK (SP); |
376 | PUSHMARK (SP); |
359 | EXTEND (SP, 1); |
377 | EXTEND (SP, 1); |
360 | |
378 | |
… | |
… | |
425 | default: |
443 | default: |
426 | PUSHs (sv_2mortal (newSViv (req->result))); |
444 | PUSHs (sv_2mortal (newSViv (req->result))); |
427 | break; |
445 | break; |
428 | } |
446 | } |
429 | |
447 | |
|
|
448 | errno = req->errorno; |
430 | |
449 | |
431 | PUTBACK; |
450 | PUTBACK; |
432 | call_sv (req->callback, G_VOID | G_EVAL); |
451 | call_sv (req->callback, G_VOID | G_EVAL); |
433 | SPAGAIN; |
452 | SPAGAIN; |
434 | |
453 | |
… | |
… | |
496 | req->flags |= FLAG_CANCELLED; |
515 | req->flags |= FLAG_CANCELLED; |
497 | |
516 | |
498 | req_cancel_subs (req); |
517 | req_cancel_subs (req); |
499 | } |
518 | } |
500 | |
519 | |
|
|
520 | static void *aio_proc(void *arg); |
|
|
521 | |
|
|
522 | static void start_thread (void) |
|
|
523 | { |
|
|
524 | sigset_t fullsigset, oldsigset; |
|
|
525 | pthread_attr_t attr; |
|
|
526 | |
|
|
527 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
528 | |
|
|
529 | if (!wrk) |
|
|
530 | croak ("unable to allocate worker thread data"); |
|
|
531 | |
|
|
532 | pthread_attr_init (&attr); |
|
|
533 | pthread_attr_setstacksize (&attr, STACKSIZE); |
|
|
534 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
535 | #ifdef PTHREAD_SCOPE_PROCESS |
|
|
536 | pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
|
|
537 | #endif |
|
|
538 | |
|
|
539 | sigfillset (&fullsigset); |
|
|
540 | |
|
|
541 | LOCK (wrklock); |
|
|
542 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
|
|
543 | |
|
|
544 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
|
|
545 | { |
|
|
546 | wrk->prev = &wrk_first; |
|
|
547 | wrk->next = wrk_first.next; |
|
|
548 | wrk_first.next->prev = wrk; |
|
|
549 | wrk_first.next = wrk; |
|
|
550 | ++started; |
|
|
551 | } |
|
|
552 | else |
|
|
553 | free (wrk); |
|
|
554 | |
|
|
555 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
556 | UNLOCK (wrklock); |
|
|
557 | } |
|
|
558 | |
|
|
559 | static void maybe_start_thread () |
|
|
560 | { |
|
|
561 | #if 0 |
|
|
562 | static struct timeval last; |
|
|
563 | struct timeval diff, now; |
|
|
564 | #endif |
|
|
565 | |
|
|
566 | if (started >= wanted) |
|
|
567 | return; |
|
|
568 | |
|
|
569 | if (nready <= nreqs - get_nready () - get_npending ()) |
|
|
570 | return; |
|
|
571 | |
|
|
572 | #if 0 |
|
|
573 | gettimeofday (&now, 0); |
|
|
574 | |
|
|
575 | diff.tv_sec = now.tv_sec - last.tv_sec; |
|
|
576 | diff.tv_usec = now.tv_usec - last.tv_usec; |
|
|
577 | |
|
|
578 | if (diff.tv_usec < 0) |
|
|
579 | { |
|
|
580 | --diff.tv_sec; |
|
|
581 | diff.tv_usec += 1000000; |
|
|
582 | } |
|
|
583 | |
|
|
584 | if (!diff.tv_sec && diff.tv_usec < 10000) |
|
|
585 | return; |
|
|
586 | |
|
|
587 | last = now; |
|
|
588 | #endif |
|
|
589 | |
|
|
590 | start_thread (); |
|
|
591 | } |
|
|
592 | |
|
|
593 | static void req_send (aio_req req) |
|
|
594 | { |
|
|
595 | ++nreqs; |
|
|
596 | |
|
|
597 | LOCK (reqlock); |
|
|
598 | ++nready; |
|
|
599 | reqq_push (&req_queue, req); |
|
|
600 | pthread_cond_signal (&reqwait); |
|
|
601 | UNLOCK (reqlock); |
|
|
602 | |
|
|
603 | maybe_start_thread (); |
|
|
604 | } |
|
|
605 | |
|
|
606 | static void end_thread (void) |
|
|
607 | { |
|
|
608 | aio_req req; |
|
|
609 | |
|
|
610 | Newz (0, req, 1, aio_cb); |
|
|
611 | |
|
|
612 | req->type = REQ_QUIT; |
|
|
613 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
614 | |
|
|
615 | req_send (req); |
|
|
616 | |
|
|
617 | LOCK (wrklock); |
|
|
618 | --started; |
|
|
619 | UNLOCK (wrklock); |
|
|
620 | } |
|
|
621 | |
|
|
622 | static void min_parallel (int nthreads) |
|
|
623 | { |
|
|
624 | if (wanted < nthreads) |
|
|
625 | wanted = nthreads; |
|
|
626 | } |
|
|
627 | |
|
|
628 | static void max_parallel (int nthreads) |
|
|
629 | { |
|
|
630 | if (wanted > nthreads) |
|
|
631 | wanted = nthreads; |
|
|
632 | |
|
|
633 | while (started > wanted) |
|
|
634 | end_thread (); |
|
|
635 | } |
|
|
636 | |
|
|
637 | static void poll_wait () |
|
|
638 | { |
|
|
639 | fd_set rfd; |
|
|
640 | |
|
|
641 | while (nreqs) |
|
|
642 | { |
|
|
643 | int size; |
|
|
644 | if (WORDREAD_UNSAFE) LOCK (reslock); |
|
|
645 | size = res_queue.size; |
|
|
646 | if (WORDREAD_UNSAFE) UNLOCK (reslock); |
|
|
647 | |
|
|
648 | if (size) |
|
|
649 | return; |
|
|
650 | |
|
|
651 | maybe_start_thread (); |
|
|
652 | |
|
|
653 | FD_ZERO(&rfd); |
|
|
654 | FD_SET(respipe [0], &rfd); |
|
|
655 | |
|
|
656 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
|
|
657 | } |
|
|
658 | } |
|
|
659 | |
501 | static int poll_cb (int max) |
660 | static int poll_cb (int max) |
502 | { |
661 | { |
503 | dSP; |
662 | dSP; |
504 | int count = 0; |
663 | int count = 0; |
505 | int do_croak = 0; |
664 | int do_croak = 0; |
506 | aio_req req; |
665 | aio_req req; |
507 | |
666 | |
|
|
667 | for (;;) |
|
|
668 | { |
508 | while (max <= 0 || count < max) |
669 | while (max <= 0 || count < max) |
509 | { |
|
|
510 | LOCK (reslock); |
|
|
511 | req = reqq_shift (&res_queue); |
|
|
512 | |
|
|
513 | if (req) |
|
|
514 | { |
670 | { |
|
|
671 | maybe_start_thread (); |
|
|
672 | |
|
|
673 | LOCK (reslock); |
|
|
674 | req = reqq_shift (&res_queue); |
|
|
675 | |
515 | if (!res_queue.size) |
676 | if (req) |
516 | { |
677 | { |
|
|
678 | --npending; |
|
|
679 | |
|
|
680 | if (!res_queue.size) |
|
|
681 | { |
517 | /* read any signals sent by the worker threads */ |
682 | /* read any signals sent by the worker threads */ |
518 | char buf [32]; |
683 | char buf [32]; |
519 | while (read (respipe [0], buf, 32) == 32) |
684 | while (read (respipe [0], buf, 32) == 32) |
|
|
685 | ; |
520 | ; |
686 | } |
521 | } |
687 | } |
|
|
688 | |
|
|
689 | UNLOCK (reslock); |
|
|
690 | |
|
|
691 | if (!req) |
|
|
692 | break; |
|
|
693 | |
|
|
694 | --nreqs; |
|
|
695 | |
|
|
696 | if (req->type == REQ_GROUP && req->length) |
|
|
697 | { |
|
|
698 | req->fd = 1; /* mark request as delayed */ |
|
|
699 | continue; |
|
|
700 | } |
|
|
701 | else |
|
|
702 | { |
|
|
703 | if (req->type == REQ_READ) |
|
|
704 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
|
705 | |
|
|
706 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
707 | SvREADONLY_off (req->data); |
|
|
708 | |
|
|
709 | if (req->statdata) |
|
|
710 | { |
|
|
711 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
712 | PL_laststatval = req->result; |
|
|
713 | PL_statcache = *(req->statdata); |
|
|
714 | } |
|
|
715 | |
|
|
716 | req_invoke (req); |
|
|
717 | |
|
|
718 | count++; |
|
|
719 | } |
|
|
720 | |
|
|
721 | req_free (req); |
522 | } |
722 | } |
523 | |
723 | |
524 | UNLOCK (reslock); |
724 | if (nreqs <= max_outstanding) |
525 | |
|
|
526 | if (!req) |
|
|
527 | break; |
725 | break; |
528 | |
726 | |
529 | --nreqs; |
727 | poll_wait (); |
530 | |
728 | |
531 | if (req->type == REQ_QUIT) |
729 | max = 0; |
532 | started--; |
|
|
533 | else if (req->type == REQ_GROUP && req->length) |
|
|
534 | { |
|
|
535 | req->fd = 1; /* mark request as delayed */ |
|
|
536 | continue; |
|
|
537 | } |
|
|
538 | else |
|
|
539 | { |
|
|
540 | if (req->type == REQ_READ) |
|
|
541 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
|
542 | |
|
|
543 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
544 | SvREADONLY_off (req->data); |
|
|
545 | |
|
|
546 | if (req->statdata) |
|
|
547 | { |
|
|
548 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
549 | PL_laststatval = req->result; |
|
|
550 | PL_statcache = *(req->statdata); |
|
|
551 | } |
|
|
552 | |
|
|
553 | req_invoke (req); |
|
|
554 | |
|
|
555 | count++; |
|
|
556 | } |
|
|
557 | |
|
|
558 | req_free (req); |
|
|
559 | } |
730 | } |
560 | |
731 | |
561 | return count; |
732 | return count; |
562 | } |
|
|
563 | |
|
|
564 | static void *aio_proc(void *arg); |
|
|
565 | |
|
|
566 | static void start_thread (void) |
|
|
567 | { |
|
|
568 | sigset_t fullsigset, oldsigset; |
|
|
569 | pthread_attr_t attr; |
|
|
570 | |
|
|
571 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
572 | |
|
|
573 | if (!wrk) |
|
|
574 | croak ("unable to allocate worker thread data"); |
|
|
575 | |
|
|
576 | pthread_attr_init (&attr); |
|
|
577 | pthread_attr_setstacksize (&attr, STACKSIZE); |
|
|
578 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
579 | |
|
|
580 | sigfillset (&fullsigset); |
|
|
581 | |
|
|
582 | LOCK (wrklock); |
|
|
583 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
|
|
584 | |
|
|
585 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
|
|
586 | { |
|
|
587 | wrk->prev = &wrk_first; |
|
|
588 | wrk->next = wrk_first.next; |
|
|
589 | wrk_first.next->prev = wrk; |
|
|
590 | wrk_first.next = wrk; |
|
|
591 | started++; |
|
|
592 | } |
|
|
593 | else |
|
|
594 | free (wrk); |
|
|
595 | |
|
|
596 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
597 | UNLOCK (wrklock); |
|
|
598 | } |
|
|
599 | |
|
|
600 | static void req_send (aio_req req) |
|
|
601 | { |
|
|
602 | while (started < wanted && nreqs >= started) |
|
|
603 | start_thread (); |
|
|
604 | |
|
|
605 | ++nreqs; |
|
|
606 | |
|
|
607 | LOCK (reqlock); |
|
|
608 | reqq_push (&req_queue, req); |
|
|
609 | pthread_cond_signal (&reqwait); |
|
|
610 | UNLOCK (reqlock); |
|
|
611 | } |
|
|
612 | |
|
|
613 | static void end_thread (void) |
|
|
614 | { |
|
|
615 | aio_req req; |
|
|
616 | |
|
|
617 | Newz (0, req, 1, aio_cb); |
|
|
618 | |
|
|
619 | req->type = REQ_QUIT; |
|
|
620 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
621 | |
|
|
622 | req_send (req); |
|
|
623 | } |
|
|
624 | |
|
|
625 | static void min_parallel (int nthreads) |
|
|
626 | { |
|
|
627 | if (wanted < nthreads) |
|
|
628 | wanted = nthreads; |
|
|
629 | } |
|
|
630 | |
|
|
631 | static void max_parallel (int nthreads) |
|
|
632 | { |
|
|
633 | int cur = started; |
|
|
634 | |
|
|
635 | if (wanted > nthreads) |
|
|
636 | wanted = nthreads; |
|
|
637 | |
|
|
638 | while (cur > wanted) |
|
|
639 | { |
|
|
640 | end_thread (); |
|
|
641 | cur--; |
|
|
642 | } |
|
|
643 | |
|
|
644 | while (started > wanted) |
|
|
645 | { |
|
|
646 | poll_wait (); |
|
|
647 | poll_cb (0); |
|
|
648 | } |
|
|
649 | } |
733 | } |
650 | |
734 | |
651 | static void create_pipe () |
735 | static void create_pipe () |
652 | { |
736 | { |
653 | if (pipe (respipe)) |
737 | if (pipe (respipe)) |
… | |
… | |
780 | { |
864 | { |
781 | off_t sbytes; |
865 | off_t sbytes; |
782 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
866 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
783 | |
867 | |
784 | if (res < 0 && sbytes) |
868 | if (res < 0 && sbytes) |
785 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
869 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
786 | res = sbytes; |
870 | res = sbytes; |
787 | } |
871 | } |
788 | |
872 | |
789 | # elif __hpux |
873 | # elif __hpux |
790 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
874 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
… | |
… | |
917 | /*****************************************************************************/ |
1001 | /*****************************************************************************/ |
918 | |
1002 | |
919 | static void *aio_proc (void *thr_arg) |
1003 | static void *aio_proc (void *thr_arg) |
920 | { |
1004 | { |
921 | aio_req req; |
1005 | aio_req req; |
922 | int type; |
|
|
923 | worker *self = (worker *)thr_arg; |
1006 | worker *self = (worker *)thr_arg; |
924 | |
1007 | |
925 | do |
1008 | for (;;) |
926 | { |
1009 | { |
927 | LOCK (reqlock); |
1010 | LOCK (reqlock); |
928 | |
1011 | |
929 | for (;;) |
1012 | for (;;) |
930 | { |
1013 | { |
… | |
… | |
934 | break; |
1017 | break; |
935 | |
1018 | |
936 | pthread_cond_wait (&reqwait, &reqlock); |
1019 | pthread_cond_wait (&reqwait, &reqlock); |
937 | } |
1020 | } |
938 | |
1021 | |
|
|
1022 | --nready; |
|
|
1023 | |
939 | UNLOCK (reqlock); |
1024 | UNLOCK (reqlock); |
940 | |
1025 | |
941 | errno = 0; /* strictly unnecessary */ |
1026 | errno = 0; /* strictly unnecessary */ |
942 | type = req->type; /* remember type for QUIT check */ |
|
|
943 | |
1027 | |
944 | if (!(req->flags & FLAG_CANCELLED)) |
1028 | if (!(req->flags & FLAG_CANCELLED)) |
945 | switch (type) |
1029 | switch (req->type) |
946 | { |
1030 | { |
947 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
1031 | case REQ_READ: req->result = pread (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; |
1032 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
949 | |
1033 | |
950 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
1034 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
… | |
… | |
959 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
1043 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
960 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
1044 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
961 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
1045 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
962 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
1046 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
963 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
1047 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
|
|
1048 | case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break; |
964 | |
1049 | |
965 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
1050 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
966 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
1051 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
967 | case REQ_READDIR: scandir_ (req, self); break; |
1052 | case REQ_READDIR: scandir_ (req, self); break; |
968 | |
1053 | |
… | |
… | |
976 | req->result = select (0, 0, 0, 0, &tv); |
1061 | req->result = select (0, 0, 0, 0, &tv); |
977 | } |
1062 | } |
978 | |
1063 | |
979 | case REQ_GROUP: |
1064 | case REQ_GROUP: |
980 | case REQ_NOP: |
1065 | case REQ_NOP: |
|
|
1066 | break; |
|
|
1067 | |
981 | case REQ_QUIT: |
1068 | case REQ_QUIT: |
|
|
1069 | LOCK (wrklock); |
|
|
1070 | worker_free (self); |
|
|
1071 | --started; |
|
|
1072 | UNLOCK (wrklock); |
982 | break; |
1073 | return 0; |
983 | |
1074 | |
984 | default: |
1075 | default: |
985 | req->result = ENOSYS; |
1076 | req->result = ENOSYS; |
986 | break; |
1077 | break; |
987 | } |
1078 | } |
988 | |
1079 | |
989 | req->errorno = errno; |
1080 | req->errorno = errno; |
990 | |
1081 | |
991 | LOCK (reslock); |
1082 | LOCK (reslock); |
992 | |
1083 | |
|
|
1084 | ++npending; |
|
|
1085 | |
993 | if (!reqq_push (&res_queue, req)) |
1086 | if (!reqq_push (&res_queue, req)) |
994 | /* write a dummy byte to the pipe so fh becomes ready */ |
1087 | /* write a dummy byte to the pipe so fh becomes ready */ |
995 | write (respipe [1], &respipe, 1); |
1088 | write (respipe [1], &respipe, 1); |
996 | |
1089 | |
997 | self->req = 0; |
1090 | self->req = 0; |
998 | worker_clear (self); |
1091 | worker_clear (self); |
999 | |
1092 | |
1000 | UNLOCK (reslock); |
1093 | UNLOCK (reslock); |
1001 | } |
1094 | } |
1002 | while (type != REQ_QUIT); |
|
|
1003 | |
|
|
1004 | LOCK (wrklock); |
|
|
1005 | worker_free (self); |
|
|
1006 | UNLOCK (wrklock); |
|
|
1007 | |
|
|
1008 | return 0; |
|
|
1009 | } |
1095 | } |
1010 | |
1096 | |
1011 | /*****************************************************************************/ |
1097 | /*****************************************************************************/ |
1012 | |
1098 | |
1013 | static void atfork_prepare (void) |
1099 | static void atfork_prepare (void) |
… | |
… | |
1093 | PROTOTYPES: ENABLE |
1179 | PROTOTYPES: ENABLE |
1094 | |
1180 | |
1095 | BOOT: |
1181 | BOOT: |
1096 | { |
1182 | { |
1097 | HV *stash = gv_stashpv ("IO::AIO", 1); |
1183 | HV *stash = gv_stashpv ("IO::AIO", 1); |
|
|
1184 | |
1098 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
1185 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
1099 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
1186 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
1100 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
1187 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1188 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1189 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1190 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
1101 | |
1191 | |
1102 | create_pipe (); |
1192 | create_pipe (); |
1103 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1193 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1104 | } |
|
|
1105 | |
1194 | |
|
|
1195 | start_thread (); |
|
|
1196 | } |
|
|
1197 | |
1106 | void |
1198 | void |
1107 | min_parallel (nthreads) |
1199 | min_parallel (int nthreads) |
1108 | int nthreads |
|
|
1109 | PROTOTYPE: $ |
1200 | PROTOTYPE: $ |
1110 | |
1201 | |
1111 | void |
1202 | void |
1112 | max_parallel (nthreads) |
1203 | max_parallel (int nthreads) |
1113 | int nthreads |
|
|
1114 | PROTOTYPE: $ |
1204 | PROTOTYPE: $ |
|
|
1205 | |
|
|
1206 | int |
|
|
1207 | max_outstanding (int maxreqs) |
|
|
1208 | PROTOTYPE: $ |
|
|
1209 | CODE: |
|
|
1210 | RETVAL = max_outstanding; |
|
|
1211 | max_outstanding = maxreqs; |
|
|
1212 | OUTPUT: |
|
|
1213 | RETVAL |
1115 | |
1214 | |
1116 | void |
1215 | void |
1117 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1216 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1118 | SV * pathname |
1217 | SV * pathname |
1119 | int flags |
1218 | int flags |
… | |
… | |
1334 | |
1433 | |
1335 | REQ_SEND; |
1434 | REQ_SEND; |
1336 | } |
1435 | } |
1337 | |
1436 | |
1338 | void |
1437 | void |
|
|
1438 | aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) |
|
|
1439 | SV * pathname |
|
|
1440 | SV * callback |
|
|
1441 | UV mode |
|
|
1442 | UV dev |
|
|
1443 | PPCODE: |
|
|
1444 | { |
|
|
1445 | dREQ; |
|
|
1446 | |
|
|
1447 | req->type = REQ_MKNOD; |
|
|
1448 | req->data = newSVsv (pathname); |
|
|
1449 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1450 | req->mode = (mode_t)mode; |
|
|
1451 | req->offset = dev; |
|
|
1452 | |
|
|
1453 | REQ_SEND; |
|
|
1454 | } |
|
|
1455 | |
|
|
1456 | void |
1339 | aio_busy (delay,callback=&PL_sv_undef) |
1457 | aio_busy (delay,callback=&PL_sv_undef) |
1340 | double delay |
1458 | double delay |
1341 | SV * callback |
1459 | SV * callback |
1342 | PPCODE: |
1460 | PPCODE: |
1343 | { |
1461 | { |
… | |
… | |
1374 | req->type = REQ_NOP; |
1492 | req->type = REQ_NOP; |
1375 | |
1493 | |
1376 | REQ_SEND; |
1494 | REQ_SEND; |
1377 | } |
1495 | } |
1378 | |
1496 | |
1379 | void |
1497 | int |
1380 | aioreq_pri (int pri = DEFAULT_PRI) |
1498 | aioreq_pri (int pri = 0) |
1381 | CODE: |
1499 | PROTOTYPE: ;$ |
|
|
1500 | CODE: |
|
|
1501 | RETVAL = next_pri - PRI_BIAS; |
|
|
1502 | if (items > 0) |
|
|
1503 | { |
1382 | if (pri < PRI_MIN) pri = PRI_MIN; |
1504 | if (pri < PRI_MIN) pri = PRI_MIN; |
1383 | if (pri > PRI_MAX) pri = PRI_MAX; |
1505 | if (pri > PRI_MAX) pri = PRI_MAX; |
1384 | next_pri = pri + PRI_BIAS; |
1506 | next_pri = pri + PRI_BIAS; |
|
|
1507 | } |
|
|
1508 | OUTPUT: |
|
|
1509 | RETVAL |
1385 | |
1510 | |
1386 | void |
1511 | void |
1387 | aioreq_nice (int nice = 0) |
1512 | aioreq_nice (int nice = 0) |
1388 | CODE: |
1513 | CODE: |
1389 | nice = next_pri - nice; |
1514 | nice = next_pri - nice; |
1390 | if (nice < PRI_MIN) nice = PRI_MIN; |
1515 | if (nice < PRI_MIN) nice = PRI_MIN; |
1391 | if (nice > PRI_MAX) nice = PRI_MAX; |
1516 | if (nice > PRI_MAX) nice = PRI_MAX; |
1392 | next_pri = nice + PRI_BIAS; |
1517 | next_pri = nice + PRI_BIAS; |
1393 | |
1518 | |
1394 | void |
1519 | void |
1395 | flush () |
1520 | flush () |
1396 | PROTOTYPE: |
1521 | PROTOTYPE: |
1397 | CODE: |
1522 | CODE: |
… | |
… | |
1448 | CODE: |
1573 | CODE: |
1449 | RETVAL = nreqs; |
1574 | RETVAL = nreqs; |
1450 | OUTPUT: |
1575 | OUTPUT: |
1451 | RETVAL |
1576 | RETVAL |
1452 | |
1577 | |
|
|
1578 | int |
|
|
1579 | nready() |
|
|
1580 | PROTOTYPE: |
|
|
1581 | CODE: |
|
|
1582 | RETVAL = get_nready (); |
|
|
1583 | OUTPUT: |
|
|
1584 | RETVAL |
|
|
1585 | |
|
|
1586 | int |
|
|
1587 | npending() |
|
|
1588 | PROTOTYPE: |
|
|
1589 | CODE: |
|
|
1590 | RETVAL = get_npending (); |
|
|
1591 | OUTPUT: |
|
|
1592 | RETVAL |
|
|
1593 | |
1453 | PROTOTYPES: DISABLE |
1594 | PROTOTYPES: DISABLE |
1454 | |
1595 | |
1455 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1596 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1456 | |
1597 | |
1457 | void |
1598 | void |
… | |
… | |
1508 | void |
1649 | void |
1509 | result (aio_req grp, ...) |
1650 | result (aio_req grp, ...) |
1510 | CODE: |
1651 | CODE: |
1511 | { |
1652 | { |
1512 | int i; |
1653 | int i; |
|
|
1654 | AV *av; |
|
|
1655 | |
|
|
1656 | grp->errorno = errno; |
|
|
1657 | |
1513 | AV *av = newAV (); |
1658 | av = newAV (); |
1514 | |
1659 | |
1515 | for (i = 1; i < items; ++i ) |
1660 | for (i = 1; i < items; ++i ) |
1516 | av_push (av, newSVsv (ST (i))); |
1661 | av_push (av, newSVsv (ST (i))); |
1517 | |
1662 | |
1518 | SvREFCNT_dec (grp->data); |
1663 | SvREFCNT_dec (grp->data); |
1519 | grp->data = (SV *)av; |
1664 | grp->data = (SV *)av; |
1520 | } |
1665 | } |
|
|
1666 | |
|
|
1667 | void |
|
|
1668 | errno (aio_req grp, int errorno = errno) |
|
|
1669 | CODE: |
|
|
1670 | grp->errorno = errorno; |
1521 | |
1671 | |
1522 | void |
1672 | void |
1523 | limit (aio_req grp, int limit) |
1673 | limit (aio_req grp, int limit) |
1524 | CODE: |
1674 | CODE: |
1525 | grp->fd2 = limit; |
1675 | grp->fd2 = limit; |