… | |
… | |
43 | # else |
43 | # else |
44 | # error sendfile support requested but not available |
44 | # error sendfile support requested but not available |
45 | # endif |
45 | # endif |
46 | #endif |
46 | #endif |
47 | |
47 | |
|
|
48 | /* number of seconds after which idle threads exit */ |
|
|
49 | #define IDLE_TIMEOUT 10 |
|
|
50 | |
48 | /* used for struct dirent, AIX doesn't provide it */ |
51 | /* used for struct dirent, AIX doesn't provide it */ |
49 | #ifndef NAME_MAX |
52 | #ifndef NAME_MAX |
50 | # define NAME_MAX 4096 |
53 | # define NAME_MAX 4096 |
51 | #endif |
54 | #endif |
52 | |
55 | |
… | |
… | |
65 | |
68 | |
66 | /* wether word reads are potentially non-atomic. |
69 | /* wether word reads are potentially non-atomic. |
67 | * this is conservatice, likely most arches this runs |
70 | * this is conservatice, likely most arches this runs |
68 | * on have atomic word read/writes. |
71 | * on have atomic word read/writes. |
69 | */ |
72 | */ |
70 | #ifndef WORDREAD_UNSAFE |
73 | #ifndef WORDACCESS_UNSAFE |
71 | # if __i386 || __x86_64 |
74 | # if __i386 || __x86_64 |
72 | # define WORDREAD_UNSAFE 0 |
75 | # define WORDACCESS_UNSAFE 0 |
73 | # else |
76 | # else |
74 | # define WORDREAD_UNSAFE 1 |
77 | # define WORDACCESS_UNSAFE 1 |
75 | # endif |
78 | # endif |
76 | #endif |
79 | #endif |
77 | |
80 | |
78 | /* buffer size for various temporary buffers */ |
81 | /* buffer size for various temporary buffers */ |
79 | #define AIO_BUFSIZE 65536 |
82 | #define AIO_BUFSIZE 65536 |
… | |
… | |
92 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
95 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
93 | REQ_SENDFILE, |
96 | REQ_SENDFILE, |
94 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
97 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
95 | REQ_FSYNC, REQ_FDATASYNC, |
98 | REQ_FSYNC, REQ_FDATASYNC, |
96 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
99 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
97 | REQ_READDIR, |
100 | REQ_MKNOD, REQ_READDIR, |
98 | REQ_LINK, REQ_SYMLINK, |
101 | REQ_LINK, REQ_SYMLINK, |
99 | REQ_GROUP, REQ_NOP, |
102 | REQ_GROUP, REQ_NOP, |
100 | REQ_BUSY, |
103 | REQ_BUSY, |
101 | }; |
104 | }; |
102 | |
105 | |
… | |
… | |
142 | DEFAULT_PRI = 0, |
145 | DEFAULT_PRI = 0, |
143 | PRI_BIAS = -PRI_MIN, |
146 | PRI_BIAS = -PRI_MIN, |
144 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
147 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
145 | }; |
148 | }; |
146 | |
149 | |
|
|
150 | #define AIO_TICKS ((1000000 + 1023) >> 10) |
|
|
151 | |
|
|
152 | static unsigned int max_poll_time = 0; |
|
|
153 | static unsigned int max_poll_reqs = 0; |
|
|
154 | |
|
|
155 | /* calculcate time difference in ~1/AIO_TICKS of a second */ |
|
|
156 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
|
|
157 | { |
|
|
158 | return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS |
|
|
159 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
|
|
160 | } |
|
|
161 | |
147 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
162 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
148 | |
163 | |
149 | static unsigned int started, wanted; |
164 | static unsigned int started, idle, wanted; |
150 | static volatile unsigned int nreqs, nready, npending; |
|
|
151 | static volatile unsigned int max_outstanding = 0xffffffff; |
|
|
152 | static int respipe [2]; |
|
|
153 | |
165 | |
154 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
166 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
155 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
167 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
156 | #else |
168 | #else |
157 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
169 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
… | |
… | |
198 | wrk->prev->next = wrk->next; |
210 | wrk->prev->next = wrk->next; |
199 | |
211 | |
200 | free (wrk); |
212 | free (wrk); |
201 | } |
213 | } |
202 | |
214 | |
|
|
215 | static volatile unsigned int nreqs, nready, npending; |
|
|
216 | static volatile unsigned int max_idle = 4; |
|
|
217 | static volatile unsigned int max_outstanding = 0xffffffff; |
|
|
218 | static int respipe [2]; |
|
|
219 | |
203 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
220 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
204 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
221 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
205 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
222 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
|
|
223 | |
|
|
224 | #if WORDACCESS_UNSAFE |
|
|
225 | |
|
|
226 | static unsigned int get_nready () |
|
|
227 | { |
|
|
228 | unsigned int retval; |
|
|
229 | |
|
|
230 | LOCK (reqlock); |
|
|
231 | retval = nready; |
|
|
232 | UNLOCK (reqlock); |
|
|
233 | |
|
|
234 | return retval; |
|
|
235 | } |
|
|
236 | |
|
|
237 | static unsigned int get_npending () |
|
|
238 | { |
|
|
239 | unsigned int retval; |
|
|
240 | |
|
|
241 | LOCK (reslock); |
|
|
242 | retval = npending; |
|
|
243 | UNLOCK (reslock); |
|
|
244 | |
|
|
245 | return retval; |
|
|
246 | } |
|
|
247 | |
|
|
248 | static unsigned int get_nthreads () |
|
|
249 | { |
|
|
250 | unsigned int retval; |
|
|
251 | |
|
|
252 | LOCK (wrklock); |
|
|
253 | retval = started; |
|
|
254 | UNLOCK (wrklock); |
|
|
255 | |
|
|
256 | return retval; |
|
|
257 | } |
|
|
258 | |
|
|
259 | #else |
|
|
260 | |
|
|
261 | # define get_nready() nready |
|
|
262 | # define get_npending() npending |
|
|
263 | # define get_nthreads() started |
|
|
264 | |
|
|
265 | #endif |
206 | |
266 | |
207 | /* |
267 | /* |
208 | * a somewhat faster data structure might be nice, but |
268 | * a somewhat faster data structure might be nice, but |
209 | * with 8 priorities this actually needs <20 insns |
269 | * with 8 priorities this actually needs <20 insns |
210 | * per shift, the most expensive operation. |
270 | * per shift, the most expensive operation. |
… | |
… | |
256 | } |
316 | } |
257 | |
317 | |
258 | abort (); |
318 | abort (); |
259 | } |
319 | } |
260 | |
320 | |
261 | static int poll_cb (int max); |
321 | static int poll_cb (); |
262 | static void req_invoke (aio_req req); |
322 | static void req_invoke (aio_req req); |
263 | static void req_free (aio_req req); |
323 | static void req_free (aio_req req); |
264 | static void req_cancel (aio_req req); |
324 | static void req_cancel (aio_req req); |
265 | |
325 | |
266 | /* must be called at most once */ |
326 | /* must be called at most once */ |
… | |
… | |
331 | req_invoke (grp); |
391 | req_invoke (grp); |
332 | req_free (grp); |
392 | req_free (grp); |
333 | } |
393 | } |
334 | } |
394 | } |
335 | |
395 | |
336 | static void poll_wait () |
|
|
337 | { |
|
|
338 | fd_set rfd; |
|
|
339 | |
|
|
340 | while (nreqs) |
|
|
341 | { |
|
|
342 | int size; |
|
|
343 | if (WORDREAD_UNSAFE) LOCK (reslock); |
|
|
344 | size = res_queue.size; |
|
|
345 | if (WORDREAD_UNSAFE) UNLOCK (reslock); |
|
|
346 | |
|
|
347 | if (size) |
|
|
348 | return; |
|
|
349 | |
|
|
350 | FD_ZERO(&rfd); |
|
|
351 | FD_SET(respipe [0], &rfd); |
|
|
352 | |
|
|
353 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
|
|
354 | } |
|
|
355 | } |
|
|
356 | |
|
|
357 | static void req_invoke (aio_req req) |
396 | static void req_invoke (aio_req req) |
358 | { |
397 | { |
359 | dSP; |
398 | dSP; |
360 | |
399 | |
361 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
400 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
… | |
… | |
504 | req->flags |= FLAG_CANCELLED; |
543 | req->flags |= FLAG_CANCELLED; |
505 | |
544 | |
506 | req_cancel_subs (req); |
545 | req_cancel_subs (req); |
507 | } |
546 | } |
508 | |
547 | |
|
|
548 | static void *aio_proc(void *arg); |
|
|
549 | |
|
|
550 | static void start_thread (void) |
|
|
551 | { |
|
|
552 | sigset_t fullsigset, oldsigset; |
|
|
553 | pthread_attr_t attr; |
|
|
554 | |
|
|
555 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
556 | |
|
|
557 | if (!wrk) |
|
|
558 | croak ("unable to allocate worker thread data"); |
|
|
559 | |
|
|
560 | pthread_attr_init (&attr); |
|
|
561 | pthread_attr_setstacksize (&attr, STACKSIZE); |
|
|
562 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
563 | #ifdef PTHREAD_SCOPE_PROCESS |
|
|
564 | pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
|
|
565 | #endif |
|
|
566 | |
|
|
567 | sigfillset (&fullsigset); |
|
|
568 | |
|
|
569 | LOCK (wrklock); |
|
|
570 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
|
|
571 | |
|
|
572 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
|
|
573 | { |
|
|
574 | wrk->prev = &wrk_first; |
|
|
575 | wrk->next = wrk_first.next; |
|
|
576 | wrk_first.next->prev = wrk; |
|
|
577 | wrk_first.next = wrk; |
|
|
578 | ++started; |
|
|
579 | } |
|
|
580 | else |
|
|
581 | free (wrk); |
|
|
582 | |
|
|
583 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
584 | UNLOCK (wrklock); |
|
|
585 | } |
|
|
586 | |
|
|
587 | static void maybe_start_thread () |
|
|
588 | { |
|
|
589 | if (get_nthreads () >= wanted) |
|
|
590 | return; |
|
|
591 | |
|
|
592 | /* todo: maybe use idle here, but might be less exact */ |
|
|
593 | if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs) |
|
|
594 | return; |
|
|
595 | |
|
|
596 | start_thread (); |
|
|
597 | } |
|
|
598 | |
|
|
599 | static void req_send (aio_req req) |
|
|
600 | { |
|
|
601 | ++nreqs; |
|
|
602 | |
|
|
603 | LOCK (reqlock); |
|
|
604 | ++nready; |
|
|
605 | reqq_push (&req_queue, req); |
|
|
606 | pthread_cond_signal (&reqwait); |
|
|
607 | UNLOCK (reqlock); |
|
|
608 | |
|
|
609 | maybe_start_thread (); |
|
|
610 | } |
|
|
611 | |
|
|
612 | static void end_thread (void) |
|
|
613 | { |
|
|
614 | aio_req req; |
|
|
615 | |
|
|
616 | Newz (0, req, 1, aio_cb); |
|
|
617 | |
|
|
618 | req->type = REQ_QUIT; |
|
|
619 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
620 | |
|
|
621 | LOCK (reqlock); |
|
|
622 | reqq_push (&req_queue, req); |
|
|
623 | pthread_cond_signal (&reqwait); |
|
|
624 | UNLOCK (reqlock); |
|
|
625 | |
|
|
626 | LOCK (wrklock); |
|
|
627 | --started; |
|
|
628 | UNLOCK (wrklock); |
|
|
629 | } |
|
|
630 | |
|
|
631 | static void set_max_idle (int nthreads) |
|
|
632 | { |
|
|
633 | if (WORDACCESS_UNSAFE) LOCK (reqlock); |
|
|
634 | max_idle = nthreads <= 0 ? 1 : nthreads; |
|
|
635 | if (WORDACCESS_UNSAFE) UNLOCK (reqlock); |
|
|
636 | } |
|
|
637 | |
|
|
638 | static void min_parallel (int nthreads) |
|
|
639 | { |
|
|
640 | if (wanted < nthreads) |
|
|
641 | wanted = nthreads; |
|
|
642 | } |
|
|
643 | |
|
|
644 | static void max_parallel (int nthreads) |
|
|
645 | { |
|
|
646 | if (wanted > nthreads) |
|
|
647 | wanted = nthreads; |
|
|
648 | |
|
|
649 | while (started > wanted) |
|
|
650 | end_thread (); |
|
|
651 | } |
|
|
652 | |
|
|
653 | static void poll_wait () |
|
|
654 | { |
|
|
655 | fd_set rfd; |
|
|
656 | |
|
|
657 | while (nreqs) |
|
|
658 | { |
|
|
659 | int size; |
|
|
660 | if (WORDACCESS_UNSAFE) LOCK (reslock); |
|
|
661 | size = res_queue.size; |
|
|
662 | if (WORDACCESS_UNSAFE) UNLOCK (reslock); |
|
|
663 | |
|
|
664 | if (size) |
|
|
665 | return; |
|
|
666 | |
|
|
667 | maybe_start_thread (); |
|
|
668 | |
|
|
669 | FD_ZERO(&rfd); |
|
|
670 | FD_SET(respipe [0], &rfd); |
|
|
671 | |
|
|
672 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
|
|
673 | } |
|
|
674 | } |
|
|
675 | |
509 | static int poll_cb (int max) |
676 | static int poll_cb () |
510 | { |
677 | { |
511 | dSP; |
678 | dSP; |
512 | int count = 0; |
679 | int count = 0; |
|
|
680 | int maxreqs = max_poll_reqs; |
513 | int do_croak = 0; |
681 | int do_croak = 0; |
|
|
682 | struct timeval tv_start, tv_now; |
514 | aio_req req; |
683 | aio_req req; |
515 | |
684 | |
|
|
685 | if (max_poll_time) |
|
|
686 | gettimeofday (&tv_start, 0); |
|
|
687 | |
516 | for (;;) |
688 | for (;;) |
517 | { |
689 | { |
518 | while (max <= 0 || count < max) |
690 | for (;;) |
519 | { |
691 | { |
|
|
692 | maybe_start_thread (); |
|
|
693 | |
520 | LOCK (reslock); |
694 | LOCK (reslock); |
521 | req = reqq_shift (&res_queue); |
695 | req = reqq_shift (&res_queue); |
522 | |
696 | |
523 | if (req) |
697 | if (req) |
524 | { |
698 | { |
… | |
… | |
538 | if (!req) |
712 | if (!req) |
539 | break; |
713 | break; |
540 | |
714 | |
541 | --nreqs; |
715 | --nreqs; |
542 | |
716 | |
543 | if (req->type == REQ_QUIT) |
|
|
544 | --started; |
|
|
545 | else if (req->type == REQ_GROUP && req->length) |
717 | if (req->type == REQ_GROUP && req->length) |
546 | { |
718 | { |
547 | req->fd = 1; /* mark request as delayed */ |
719 | req->fd = 1; /* mark request as delayed */ |
548 | continue; |
720 | continue; |
549 | } |
721 | } |
550 | else |
722 | else |
… | |
… | |
566 | |
738 | |
567 | count++; |
739 | count++; |
568 | } |
740 | } |
569 | |
741 | |
570 | req_free (req); |
742 | req_free (req); |
|
|
743 | |
|
|
744 | if (maxreqs && !--maxreqs) |
|
|
745 | break; |
|
|
746 | |
|
|
747 | if (max_poll_time) |
|
|
748 | { |
|
|
749 | gettimeofday (&tv_now, 0); |
|
|
750 | |
|
|
751 | if (tvdiff (&tv_start, &tv_now) >= max_poll_time) |
|
|
752 | break; |
|
|
753 | } |
571 | } |
754 | } |
572 | |
755 | |
573 | if (nreqs <= max_outstanding) |
756 | if (nreqs <= max_outstanding) |
574 | break; |
757 | break; |
575 | |
758 | |
576 | poll_wait (); |
759 | poll_wait (); |
577 | |
760 | |
578 | max = 0; |
761 | ++maxreqs; |
579 | } |
762 | } |
580 | |
763 | |
581 | return count; |
764 | return count; |
582 | } |
|
|
583 | |
|
|
584 | static void *aio_proc(void *arg); |
|
|
585 | |
|
|
586 | static void start_thread (void) |
|
|
587 | { |
|
|
588 | sigset_t fullsigset, oldsigset; |
|
|
589 | pthread_attr_t attr; |
|
|
590 | |
|
|
591 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
592 | |
|
|
593 | if (!wrk) |
|
|
594 | croak ("unable to allocate worker thread data"); |
|
|
595 | |
|
|
596 | pthread_attr_init (&attr); |
|
|
597 | pthread_attr_setstacksize (&attr, STACKSIZE); |
|
|
598 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
599 | |
|
|
600 | sigfillset (&fullsigset); |
|
|
601 | |
|
|
602 | LOCK (wrklock); |
|
|
603 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
|
|
604 | |
|
|
605 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
|
|
606 | { |
|
|
607 | wrk->prev = &wrk_first; |
|
|
608 | wrk->next = wrk_first.next; |
|
|
609 | wrk_first.next->prev = wrk; |
|
|
610 | wrk_first.next = wrk; |
|
|
611 | ++started; |
|
|
612 | } |
|
|
613 | else |
|
|
614 | free (wrk); |
|
|
615 | |
|
|
616 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
617 | UNLOCK (wrklock); |
|
|
618 | } |
|
|
619 | |
|
|
620 | static void req_send (aio_req req) |
|
|
621 | { |
|
|
622 | while (started < wanted && nreqs >= started) |
|
|
623 | start_thread (); |
|
|
624 | |
|
|
625 | ++nreqs; |
|
|
626 | |
|
|
627 | LOCK (reqlock); |
|
|
628 | ++nready; |
|
|
629 | reqq_push (&req_queue, req); |
|
|
630 | pthread_cond_signal (&reqwait); |
|
|
631 | UNLOCK (reqlock); |
|
|
632 | } |
|
|
633 | |
|
|
634 | static void end_thread (void) |
|
|
635 | { |
|
|
636 | aio_req req; |
|
|
637 | |
|
|
638 | Newz (0, req, 1, aio_cb); |
|
|
639 | |
|
|
640 | req->type = REQ_QUIT; |
|
|
641 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
642 | |
|
|
643 | req_send (req); |
|
|
644 | } |
|
|
645 | |
|
|
646 | static void min_parallel (int nthreads) |
|
|
647 | { |
|
|
648 | if (wanted < nthreads) |
|
|
649 | wanted = nthreads; |
|
|
650 | } |
|
|
651 | |
|
|
652 | static void max_parallel (int nthreads) |
|
|
653 | { |
|
|
654 | int cur = started; |
|
|
655 | |
|
|
656 | if (wanted > nthreads) |
|
|
657 | wanted = nthreads; |
|
|
658 | |
|
|
659 | while (cur > wanted) |
|
|
660 | { |
|
|
661 | end_thread (); |
|
|
662 | cur--; |
|
|
663 | } |
|
|
664 | |
|
|
665 | while (started > wanted) |
|
|
666 | { |
|
|
667 | poll_wait (); |
|
|
668 | poll_cb (0); |
|
|
669 | } |
|
|
670 | } |
765 | } |
671 | |
766 | |
672 | static void create_pipe () |
767 | static void create_pipe () |
673 | { |
768 | { |
674 | if (pipe (respipe)) |
769 | if (pipe (respipe)) |
… | |
… | |
938 | /*****************************************************************************/ |
1033 | /*****************************************************************************/ |
939 | |
1034 | |
940 | static void *aio_proc (void *thr_arg) |
1035 | static void *aio_proc (void *thr_arg) |
941 | { |
1036 | { |
942 | aio_req req; |
1037 | aio_req req; |
943 | int type; |
1038 | struct timespec ts; |
944 | worker *self = (worker *)thr_arg; |
1039 | worker *self = (worker *)thr_arg; |
945 | |
1040 | |
946 | do |
1041 | /* try to distribute timeouts somewhat evenly */ |
|
|
1042 | ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL) |
|
|
1043 | * (1000000000UL / 1024UL); |
|
|
1044 | |
|
|
1045 | for (;;) |
947 | { |
1046 | { |
|
|
1047 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1048 | |
948 | LOCK (reqlock); |
1049 | LOCK (reqlock); |
949 | |
1050 | |
950 | for (;;) |
1051 | for (;;) |
951 | { |
1052 | { |
952 | self->req = req = reqq_shift (&req_queue); |
1053 | self->req = req = reqq_shift (&req_queue); |
953 | |
1054 | |
954 | if (req) |
1055 | if (req) |
955 | break; |
1056 | break; |
956 | |
1057 | |
|
|
1058 | ++idle; |
|
|
1059 | |
|
|
1060 | if (pthread_cond_timedwait (&reqwait, &reqlock, &ts) |
|
|
1061 | == ETIMEDOUT) |
|
|
1062 | { |
|
|
1063 | if (idle > max_idle) |
|
|
1064 | { |
|
|
1065 | --idle; |
|
|
1066 | UNLOCK (reqlock); |
|
|
1067 | LOCK (wrklock); |
|
|
1068 | --started; |
|
|
1069 | UNLOCK (wrklock); |
|
|
1070 | goto quit; |
|
|
1071 | } |
|
|
1072 | |
|
|
1073 | /* we are allowed to idle, so do so without any timeout */ |
957 | pthread_cond_wait (&reqwait, &reqlock); |
1074 | pthread_cond_wait (&reqwait, &reqlock); |
|
|
1075 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1076 | } |
|
|
1077 | |
|
|
1078 | --idle; |
958 | } |
1079 | } |
959 | |
1080 | |
960 | --nready; |
1081 | --nready; |
961 | |
1082 | |
962 | UNLOCK (reqlock); |
1083 | UNLOCK (reqlock); |
963 | |
1084 | |
964 | errno = 0; /* strictly unnecessary */ |
1085 | errno = 0; /* strictly unnecessary */ |
965 | type = req->type; /* remember type for QUIT check */ |
|
|
966 | |
1086 | |
967 | if (!(req->flags & FLAG_CANCELLED)) |
1087 | if (!(req->flags & FLAG_CANCELLED)) |
968 | switch (type) |
1088 | switch (req->type) |
969 | { |
1089 | { |
970 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
1090 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
971 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
1091 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
972 | |
1092 | |
973 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
1093 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
… | |
… | |
982 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
1102 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
983 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
1103 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
984 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
1104 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
985 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
1105 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
986 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
1106 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
|
|
1107 | case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break; |
987 | |
1108 | |
988 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
1109 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
989 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
1110 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
990 | case REQ_READDIR: scandir_ (req, self); break; |
1111 | case REQ_READDIR: scandir_ (req, self); break; |
991 | |
1112 | |
… | |
… | |
999 | req->result = select (0, 0, 0, 0, &tv); |
1120 | req->result = select (0, 0, 0, 0, &tv); |
1000 | } |
1121 | } |
1001 | |
1122 | |
1002 | case REQ_GROUP: |
1123 | case REQ_GROUP: |
1003 | case REQ_NOP: |
1124 | case REQ_NOP: |
|
|
1125 | break; |
|
|
1126 | |
1004 | case REQ_QUIT: |
1127 | case REQ_QUIT: |
1005 | break; |
1128 | goto quit; |
1006 | |
1129 | |
1007 | default: |
1130 | default: |
1008 | req->result = ENOSYS; |
1131 | req->result = ENOSYS; |
1009 | break; |
1132 | break; |
1010 | } |
1133 | } |
… | |
… | |
1022 | self->req = 0; |
1145 | self->req = 0; |
1023 | worker_clear (self); |
1146 | worker_clear (self); |
1024 | |
1147 | |
1025 | UNLOCK (reslock); |
1148 | UNLOCK (reslock); |
1026 | } |
1149 | } |
1027 | while (type != REQ_QUIT); |
|
|
1028 | |
1150 | |
|
|
1151 | quit: |
1029 | LOCK (wrklock); |
1152 | LOCK (wrklock); |
1030 | worker_free (self); |
1153 | worker_free (self); |
1031 | UNLOCK (wrklock); |
1154 | UNLOCK (wrklock); |
1032 | |
1155 | |
1033 | return 0; |
1156 | return 0; |
… | |
… | |
1080 | |
1203 | |
1081 | worker_clear (wrk); |
1204 | worker_clear (wrk); |
1082 | worker_free (wrk); |
1205 | worker_free (wrk); |
1083 | } |
1206 | } |
1084 | |
1207 | |
1085 | started = 0; |
1208 | started = 0; |
|
|
1209 | idle = 0; |
1086 | nreqs = 0; |
1210 | nreqs = 0; |
|
|
1211 | nready = 0; |
|
|
1212 | npending = 0; |
1087 | |
1213 | |
1088 | close (respipe [0]); |
1214 | close (respipe [0]); |
1089 | close (respipe [1]); |
1215 | close (respipe [1]); |
1090 | create_pipe (); |
1216 | create_pipe (); |
1091 | |
1217 | |
… | |
… | |
1118 | PROTOTYPES: ENABLE |
1244 | PROTOTYPES: ENABLE |
1119 | |
1245 | |
1120 | BOOT: |
1246 | BOOT: |
1121 | { |
1247 | { |
1122 | HV *stash = gv_stashpv ("IO::AIO", 1); |
1248 | HV *stash = gv_stashpv ("IO::AIO", 1); |
|
|
1249 | |
1123 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
1250 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
1124 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
1251 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
1125 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
1252 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1253 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1254 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1255 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
1126 | |
1256 | |
1127 | create_pipe (); |
1257 | create_pipe (); |
1128 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1258 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1129 | } |
1259 | } |
1130 | |
1260 | |
1131 | void |
1261 | void |
|
|
1262 | max_poll_reqs (int nreqs) |
|
|
1263 | PROTOTYPE: $ |
|
|
1264 | CODE: |
|
|
1265 | max_poll_reqs = nreqs; |
|
|
1266 | |
|
|
1267 | void |
|
|
1268 | max_poll_time (double nseconds) |
|
|
1269 | PROTOTYPE: $ |
|
|
1270 | CODE: |
|
|
1271 | max_poll_time = nseconds * AIO_TICKS; |
|
|
1272 | |
|
|
1273 | void |
1132 | min_parallel (int nthreads) |
1274 | min_parallel (int nthreads) |
1133 | PROTOTYPE: $ |
1275 | PROTOTYPE: $ |
1134 | |
1276 | |
1135 | void |
1277 | void |
1136 | max_parallel (int nthreads) |
1278 | max_parallel (int nthreads) |
1137 | PROTOTYPE: $ |
1279 | PROTOTYPE: $ |
|
|
1280 | |
|
|
1281 | void |
|
|
1282 | max_idle (int nthreads) |
|
|
1283 | PROTOTYPE: $ |
|
|
1284 | CODE: |
|
|
1285 | set_max_idle (nthreads); |
1138 | |
1286 | |
1139 | int |
1287 | int |
1140 | max_outstanding (int maxreqs) |
1288 | max_outstanding (int maxreqs) |
1141 | PROTOTYPE: $ |
1289 | PROTOTYPE: $ |
1142 | CODE: |
1290 | CODE: |
… | |
… | |
1361 | req->type = ix; |
1509 | req->type = ix; |
1362 | req->fh = newSVsv (oldpath); |
1510 | req->fh = newSVsv (oldpath); |
1363 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1511 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1364 | req->data = newSVsv (newpath); |
1512 | req->data = newSVsv (newpath); |
1365 | req->dataptr = SvPVbyte_nolen (req->data); |
1513 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1514 | |
|
|
1515 | REQ_SEND; |
|
|
1516 | } |
|
|
1517 | |
|
|
1518 | void |
|
|
1519 | aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) |
|
|
1520 | SV * pathname |
|
|
1521 | SV * callback |
|
|
1522 | UV mode |
|
|
1523 | UV dev |
|
|
1524 | PPCODE: |
|
|
1525 | { |
|
|
1526 | dREQ; |
|
|
1527 | |
|
|
1528 | req->type = REQ_MKNOD; |
|
|
1529 | req->data = newSVsv (pathname); |
|
|
1530 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1531 | req->mode = (mode_t)mode; |
|
|
1532 | req->offset = dev; |
1366 | |
1533 | |
1367 | REQ_SEND; |
1534 | REQ_SEND; |
1368 | } |
1535 | } |
1369 | |
1536 | |
1370 | void |
1537 | void |
… | |
… | |
1460 | |
1627 | |
1461 | int |
1628 | int |
1462 | poll_cb(...) |
1629 | poll_cb(...) |
1463 | PROTOTYPE: |
1630 | PROTOTYPE: |
1464 | CODE: |
1631 | CODE: |
1465 | RETVAL = poll_cb (0); |
1632 | RETVAL = poll_cb (); |
1466 | OUTPUT: |
|
|
1467 | RETVAL |
|
|
1468 | |
|
|
1469 | int |
|
|
1470 | poll_some(int max = 0) |
|
|
1471 | PROTOTYPE: $ |
|
|
1472 | CODE: |
|
|
1473 | RETVAL = poll_cb (max); |
|
|
1474 | OUTPUT: |
1633 | OUTPUT: |
1475 | RETVAL |
1634 | RETVAL |
1476 | |
1635 | |
1477 | void |
1636 | void |
1478 | poll_wait() |
1637 | poll_wait() |
… | |
… | |
1491 | |
1650 | |
1492 | int |
1651 | int |
1493 | nready() |
1652 | nready() |
1494 | PROTOTYPE: |
1653 | PROTOTYPE: |
1495 | CODE: |
1654 | CODE: |
1496 | if (WORDREAD_UNSAFE) LOCK (reqlock); |
|
|
1497 | RETVAL = nready; |
1655 | RETVAL = get_nready (); |
1498 | if (WORDREAD_UNSAFE) UNLOCK (reqlock); |
|
|
1499 | OUTPUT: |
1656 | OUTPUT: |
1500 | RETVAL |
1657 | RETVAL |
1501 | |
1658 | |
1502 | int |
1659 | int |
1503 | npending() |
1660 | npending() |
1504 | PROTOTYPE: |
1661 | PROTOTYPE: |
1505 | CODE: |
1662 | CODE: |
1506 | if (WORDREAD_UNSAFE) LOCK (reslock); |
|
|
1507 | RETVAL = npending; |
1663 | RETVAL = get_npending (); |
|
|
1664 | OUTPUT: |
|
|
1665 | RETVAL |
|
|
1666 | |
|
|
1667 | int |
|
|
1668 | nthreads() |
|
|
1669 | PROTOTYPE: |
|
|
1670 | CODE: |
|
|
1671 | if (WORDACCESS_UNSAFE) LOCK (wrklock); |
|
|
1672 | RETVAL = started; |
1508 | if (WORDREAD_UNSAFE) UNLOCK (reslock); |
1673 | if (WORDACCESS_UNSAFE) UNLOCK (wrklock); |
1509 | OUTPUT: |
1674 | OUTPUT: |
1510 | RETVAL |
1675 | RETVAL |
1511 | |
1676 | |
1512 | PROTOTYPES: DISABLE |
1677 | PROTOTYPES: DISABLE |
1513 | |
1678 | |