… | |
… | |
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; \ |
… | |
… | |
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; |
150 | static volatile unsigned int nreqs, nready, npending; |
|
|
151 | static volatile unsigned int max_outstanding = 0xffffffff; |
139 | static int respipe [2]; |
152 | static int respipe [2]; |
140 | |
153 | |
141 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
154 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
142 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
155 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
143 | #else |
156 | #else |
… | |
… | |
325 | fd_set rfd; |
338 | fd_set rfd; |
326 | |
339 | |
327 | while (nreqs) |
340 | while (nreqs) |
328 | { |
341 | { |
329 | int size; |
342 | int size; |
330 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
343 | if (WORDREAD_UNSAFE) LOCK (reslock); |
331 | LOCK (reslock); |
|
|
332 | #endif |
|
|
333 | size = res_queue.size; |
344 | size = res_queue.size; |
334 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
345 | if (WORDREAD_UNSAFE) UNLOCK (reslock); |
335 | UNLOCK (reslock); |
|
|
336 | #endif |
|
|
337 | |
346 | |
338 | if (size) |
347 | if (size) |
339 | return; |
348 | return; |
340 | |
349 | |
341 | FD_ZERO(&rfd); |
350 | FD_ZERO(&rfd); |
… | |
… | |
349 | { |
358 | { |
350 | dSP; |
359 | dSP; |
351 | |
360 | |
352 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
361 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
353 | { |
362 | { |
354 | errno = req->errorno; |
|
|
355 | |
|
|
356 | ENTER; |
363 | ENTER; |
357 | SAVETMPS; |
364 | SAVETMPS; |
358 | PUSHMARK (SP); |
365 | PUSHMARK (SP); |
359 | EXTEND (SP, 1); |
366 | EXTEND (SP, 1); |
360 | |
367 | |
… | |
… | |
425 | default: |
432 | default: |
426 | PUSHs (sv_2mortal (newSViv (req->result))); |
433 | PUSHs (sv_2mortal (newSViv (req->result))); |
427 | break; |
434 | break; |
428 | } |
435 | } |
429 | |
436 | |
|
|
437 | errno = req->errorno; |
430 | |
438 | |
431 | PUTBACK; |
439 | PUTBACK; |
432 | call_sv (req->callback, G_VOID | G_EVAL); |
440 | call_sv (req->callback, G_VOID | G_EVAL); |
433 | SPAGAIN; |
441 | SPAGAIN; |
434 | |
442 | |
… | |
… | |
503 | dSP; |
511 | dSP; |
504 | int count = 0; |
512 | int count = 0; |
505 | int do_croak = 0; |
513 | int do_croak = 0; |
506 | aio_req req; |
514 | aio_req req; |
507 | |
515 | |
|
|
516 | for (;;) |
|
|
517 | { |
508 | while (max <= 0 || count < max) |
518 | while (max <= 0 || count < max) |
509 | { |
|
|
510 | LOCK (reslock); |
|
|
511 | req = reqq_shift (&res_queue); |
|
|
512 | |
|
|
513 | if (req) |
|
|
514 | { |
519 | { |
|
|
520 | LOCK (reslock); |
|
|
521 | req = reqq_shift (&res_queue); |
|
|
522 | |
515 | if (!res_queue.size) |
523 | if (req) |
516 | { |
524 | { |
|
|
525 | --npending; |
|
|
526 | |
|
|
527 | if (!res_queue.size) |
|
|
528 | { |
517 | /* read any signals sent by the worker threads */ |
529 | /* read any signals sent by the worker threads */ |
518 | char buf [32]; |
530 | char buf [32]; |
519 | while (read (respipe [0], buf, 32) == 32) |
531 | while (read (respipe [0], buf, 32) == 32) |
|
|
532 | ; |
520 | ; |
533 | } |
521 | } |
534 | } |
|
|
535 | |
|
|
536 | UNLOCK (reslock); |
|
|
537 | |
|
|
538 | if (!req) |
|
|
539 | break; |
|
|
540 | |
|
|
541 | --nreqs; |
|
|
542 | |
|
|
543 | if (req->type == REQ_QUIT) |
|
|
544 | --started; |
|
|
545 | else if (req->type == REQ_GROUP && req->length) |
|
|
546 | { |
|
|
547 | req->fd = 1; /* mark request as delayed */ |
|
|
548 | continue; |
|
|
549 | } |
|
|
550 | else |
|
|
551 | { |
|
|
552 | if (req->type == REQ_READ) |
|
|
553 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
|
554 | |
|
|
555 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
556 | SvREADONLY_off (req->data); |
|
|
557 | |
|
|
558 | if (req->statdata) |
|
|
559 | { |
|
|
560 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
561 | PL_laststatval = req->result; |
|
|
562 | PL_statcache = *(req->statdata); |
|
|
563 | } |
|
|
564 | |
|
|
565 | req_invoke (req); |
|
|
566 | |
|
|
567 | count++; |
|
|
568 | } |
|
|
569 | |
|
|
570 | req_free (req); |
522 | } |
571 | } |
523 | |
572 | |
524 | UNLOCK (reslock); |
573 | if (nreqs <= max_outstanding) |
525 | |
|
|
526 | if (!req) |
|
|
527 | break; |
574 | break; |
528 | |
575 | |
529 | --nreqs; |
576 | poll_wait (); |
530 | |
577 | |
531 | if (req->type == REQ_QUIT) |
578 | 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 | } |
579 | } |
560 | |
580 | |
561 | return count; |
581 | return count; |
562 | } |
582 | } |
563 | |
583 | |
… | |
… | |
586 | { |
606 | { |
587 | wrk->prev = &wrk_first; |
607 | wrk->prev = &wrk_first; |
588 | wrk->next = wrk_first.next; |
608 | wrk->next = wrk_first.next; |
589 | wrk_first.next->prev = wrk; |
609 | wrk_first.next->prev = wrk; |
590 | wrk_first.next = wrk; |
610 | wrk_first.next = wrk; |
591 | started++; |
611 | ++started; |
592 | } |
612 | } |
593 | else |
613 | else |
594 | free (wrk); |
614 | free (wrk); |
595 | |
615 | |
596 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
616 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
… | |
… | |
603 | start_thread (); |
623 | start_thread (); |
604 | |
624 | |
605 | ++nreqs; |
625 | ++nreqs; |
606 | |
626 | |
607 | LOCK (reqlock); |
627 | LOCK (reqlock); |
|
|
628 | ++nready; |
608 | reqq_push (&req_queue, req); |
629 | reqq_push (&req_queue, req); |
609 | pthread_cond_signal (&reqwait); |
630 | pthread_cond_signal (&reqwait); |
610 | UNLOCK (reqlock); |
631 | UNLOCK (reqlock); |
611 | } |
632 | } |
612 | |
633 | |
… | |
… | |
780 | { |
801 | { |
781 | off_t sbytes; |
802 | off_t sbytes; |
782 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
803 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
783 | |
804 | |
784 | if (res < 0 && sbytes) |
805 | if (res < 0 && sbytes) |
785 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
806 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
786 | res = sbytes; |
807 | res = sbytes; |
787 | } |
808 | } |
788 | |
809 | |
789 | # elif __hpux |
810 | # elif __hpux |
790 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
811 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
… | |
… | |
934 | break; |
955 | break; |
935 | |
956 | |
936 | pthread_cond_wait (&reqwait, &reqlock); |
957 | pthread_cond_wait (&reqwait, &reqlock); |
937 | } |
958 | } |
938 | |
959 | |
|
|
960 | --nready; |
|
|
961 | |
939 | UNLOCK (reqlock); |
962 | UNLOCK (reqlock); |
940 | |
963 | |
941 | errno = 0; /* strictly unnecessary */ |
964 | errno = 0; /* strictly unnecessary */ |
942 | type = req->type; /* remember type for QUIT check */ |
965 | type = req->type; /* remember type for QUIT check */ |
943 | |
966 | |
… | |
… | |
987 | } |
1010 | } |
988 | |
1011 | |
989 | req->errorno = errno; |
1012 | req->errorno = errno; |
990 | |
1013 | |
991 | LOCK (reslock); |
1014 | LOCK (reslock); |
|
|
1015 | |
|
|
1016 | ++npending; |
992 | |
1017 | |
993 | if (!reqq_push (&res_queue, req)) |
1018 | if (!reqq_push (&res_queue, req)) |
994 | /* write a dummy byte to the pipe so fh becomes ready */ |
1019 | /* write a dummy byte to the pipe so fh becomes ready */ |
995 | write (respipe [1], &respipe, 1); |
1020 | write (respipe [1], &respipe, 1); |
996 | |
1021 | |
… | |
… | |
1102 | create_pipe (); |
1127 | create_pipe (); |
1103 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1128 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1104 | } |
1129 | } |
1105 | |
1130 | |
1106 | void |
1131 | void |
1107 | min_parallel (nthreads) |
1132 | min_parallel (int nthreads) |
1108 | int nthreads |
|
|
1109 | PROTOTYPE: $ |
1133 | PROTOTYPE: $ |
1110 | |
1134 | |
1111 | void |
1135 | void |
1112 | max_parallel (nthreads) |
1136 | max_parallel (int nthreads) |
1113 | int nthreads |
|
|
1114 | PROTOTYPE: $ |
1137 | PROTOTYPE: $ |
|
|
1138 | |
|
|
1139 | int |
|
|
1140 | max_outstanding (int maxreqs) |
|
|
1141 | PROTOTYPE: $ |
|
|
1142 | CODE: |
|
|
1143 | RETVAL = max_outstanding; |
|
|
1144 | max_outstanding = maxreqs; |
|
|
1145 | OUTPUT: |
|
|
1146 | RETVAL |
1115 | |
1147 | |
1116 | void |
1148 | void |
1117 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1149 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1118 | SV * pathname |
1150 | SV * pathname |
1119 | int flags |
1151 | int flags |
… | |
… | |
1374 | req->type = REQ_NOP; |
1406 | req->type = REQ_NOP; |
1375 | |
1407 | |
1376 | REQ_SEND; |
1408 | REQ_SEND; |
1377 | } |
1409 | } |
1378 | |
1410 | |
1379 | void |
1411 | int |
1380 | aioreq_pri (int pri = DEFAULT_PRI) |
1412 | aioreq_pri (int pri = 0) |
1381 | CODE: |
1413 | PROTOTYPE: ;$ |
|
|
1414 | CODE: |
|
|
1415 | RETVAL = next_pri - PRI_BIAS; |
|
|
1416 | if (items > 0) |
|
|
1417 | { |
1382 | if (pri < PRI_MIN) pri = PRI_MIN; |
1418 | if (pri < PRI_MIN) pri = PRI_MIN; |
1383 | if (pri > PRI_MAX) pri = PRI_MAX; |
1419 | if (pri > PRI_MAX) pri = PRI_MAX; |
1384 | next_pri = pri + PRI_BIAS; |
1420 | next_pri = pri + PRI_BIAS; |
|
|
1421 | } |
|
|
1422 | OUTPUT: |
|
|
1423 | RETVAL |
1385 | |
1424 | |
1386 | void |
1425 | void |
1387 | aioreq_nice (int nice = 0) |
1426 | aioreq_nice (int nice = 0) |
1388 | CODE: |
1427 | CODE: |
1389 | nice = next_pri - nice; |
1428 | nice = next_pri - nice; |
1390 | if (nice < PRI_MIN) nice = PRI_MIN; |
1429 | if (nice < PRI_MIN) nice = PRI_MIN; |
1391 | if (nice > PRI_MAX) nice = PRI_MAX; |
1430 | if (nice > PRI_MAX) nice = PRI_MAX; |
1392 | next_pri = nice + PRI_BIAS; |
1431 | next_pri = nice + PRI_BIAS; |
1393 | |
1432 | |
1394 | void |
1433 | void |
1395 | flush () |
1434 | flush () |
1396 | PROTOTYPE: |
1435 | PROTOTYPE: |
1397 | CODE: |
1436 | CODE: |
… | |
… | |
1448 | CODE: |
1487 | CODE: |
1449 | RETVAL = nreqs; |
1488 | RETVAL = nreqs; |
1450 | OUTPUT: |
1489 | OUTPUT: |
1451 | RETVAL |
1490 | RETVAL |
1452 | |
1491 | |
|
|
1492 | int |
|
|
1493 | nready() |
|
|
1494 | PROTOTYPE: |
|
|
1495 | CODE: |
|
|
1496 | if (WORDREAD_UNSAFE) LOCK (reqlock); |
|
|
1497 | RETVAL = nready; |
|
|
1498 | if (WORDREAD_UNSAFE) UNLOCK (reqlock); |
|
|
1499 | OUTPUT: |
|
|
1500 | RETVAL |
|
|
1501 | |
|
|
1502 | int |
|
|
1503 | npending() |
|
|
1504 | PROTOTYPE: |
|
|
1505 | CODE: |
|
|
1506 | if (WORDREAD_UNSAFE) LOCK (reslock); |
|
|
1507 | RETVAL = npending; |
|
|
1508 | if (WORDREAD_UNSAFE) UNLOCK (reslock); |
|
|
1509 | OUTPUT: |
|
|
1510 | RETVAL |
|
|
1511 | |
1453 | PROTOTYPES: DISABLE |
1512 | PROTOTYPES: DISABLE |
1454 | |
1513 | |
1455 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1514 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1456 | |
1515 | |
1457 | void |
1516 | void |
… | |
… | |
1508 | void |
1567 | void |
1509 | result (aio_req grp, ...) |
1568 | result (aio_req grp, ...) |
1510 | CODE: |
1569 | CODE: |
1511 | { |
1570 | { |
1512 | int i; |
1571 | int i; |
|
|
1572 | AV *av; |
|
|
1573 | |
|
|
1574 | grp->errorno = errno; |
|
|
1575 | |
1513 | AV *av = newAV (); |
1576 | av = newAV (); |
1514 | |
1577 | |
1515 | for (i = 1; i < items; ++i ) |
1578 | for (i = 1; i < items; ++i ) |
1516 | av_push (av, newSVsv (ST (i))); |
1579 | av_push (av, newSVsv (ST (i))); |
1517 | |
1580 | |
1518 | SvREFCNT_dec (grp->data); |
1581 | SvREFCNT_dec (grp->data); |
1519 | grp->data = (SV *)av; |
1582 | grp->data = (SV *)av; |
1520 | } |
1583 | } |
|
|
1584 | |
|
|
1585 | void |
|
|
1586 | errno (aio_req grp, int errorno = errno) |
|
|
1587 | CODE: |
|
|
1588 | grp->errorno = errorno; |
1521 | |
1589 | |
1522 | void |
1590 | void |
1523 | limit (aio_req grp, int limit) |
1591 | limit (aio_req grp, int limit) |
1524 | CODE: |
1592 | CODE: |
1525 | grp->fd2 = limit; |
1593 | grp->fd2 = limit; |