… | |
… | |
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; \ |
… | |
… | |
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 unsigned int started, wanted; |
149 | static unsigned int started, wanted; |
138 | static volatile unsigned int nreqs; |
150 | static volatile unsigned int nreqs, nready, npending; |
139 | static volatile unsigned int max_outstanding = 0xffffffff; |
151 | static volatile unsigned int max_outstanding = 0xffffffff; |
140 | static int respipe [2]; |
152 | static int respipe [2]; |
141 | |
153 | |
142 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
154 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
143 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
155 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
… | |
… | |
326 | fd_set rfd; |
338 | fd_set rfd; |
327 | |
339 | |
328 | while (nreqs) |
340 | while (nreqs) |
329 | { |
341 | { |
330 | int size; |
342 | int size; |
331 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
343 | if (WORDREAD_UNSAFE) LOCK (reslock); |
332 | LOCK (reslock); |
|
|
333 | #endif |
|
|
334 | size = res_queue.size; |
344 | size = res_queue.size; |
335 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
345 | if (WORDREAD_UNSAFE) UNLOCK (reslock); |
336 | UNLOCK (reslock); |
|
|
337 | #endif |
|
|
338 | |
346 | |
339 | if (size) |
347 | if (size) |
340 | return; |
348 | return; |
341 | |
349 | |
342 | FD_ZERO(&rfd); |
350 | FD_ZERO(&rfd); |
… | |
… | |
350 | { |
358 | { |
351 | dSP; |
359 | dSP; |
352 | |
360 | |
353 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
361 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
354 | { |
362 | { |
355 | errno = req->errorno; |
|
|
356 | |
|
|
357 | ENTER; |
363 | ENTER; |
358 | SAVETMPS; |
364 | SAVETMPS; |
359 | PUSHMARK (SP); |
365 | PUSHMARK (SP); |
360 | EXTEND (SP, 1); |
366 | EXTEND (SP, 1); |
361 | |
367 | |
… | |
… | |
426 | default: |
432 | default: |
427 | PUSHs (sv_2mortal (newSViv (req->result))); |
433 | PUSHs (sv_2mortal (newSViv (req->result))); |
428 | break; |
434 | break; |
429 | } |
435 | } |
430 | |
436 | |
|
|
437 | errno = req->errorno; |
431 | |
438 | |
432 | PUTBACK; |
439 | PUTBACK; |
433 | call_sv (req->callback, G_VOID | G_EVAL); |
440 | call_sv (req->callback, G_VOID | G_EVAL); |
434 | SPAGAIN; |
441 | SPAGAIN; |
435 | |
442 | |
… | |
… | |
513 | LOCK (reslock); |
520 | LOCK (reslock); |
514 | req = reqq_shift (&res_queue); |
521 | req = reqq_shift (&res_queue); |
515 | |
522 | |
516 | if (req) |
523 | if (req) |
517 | { |
524 | { |
|
|
525 | --npending; |
|
|
526 | |
518 | if (!res_queue.size) |
527 | if (!res_queue.size) |
519 | { |
528 | { |
520 | /* read any signals sent by the worker threads */ |
529 | /* read any signals sent by the worker threads */ |
521 | char buf [32]; |
530 | char buf [32]; |
522 | while (read (respipe [0], buf, 32) == 32) |
531 | while (read (respipe [0], buf, 32) == 32) |
… | |
… | |
614 | start_thread (); |
623 | start_thread (); |
615 | |
624 | |
616 | ++nreqs; |
625 | ++nreqs; |
617 | |
626 | |
618 | LOCK (reqlock); |
627 | LOCK (reqlock); |
|
|
628 | ++nready; |
619 | reqq_push (&req_queue, req); |
629 | reqq_push (&req_queue, req); |
620 | pthread_cond_signal (&reqwait); |
630 | pthread_cond_signal (&reqwait); |
621 | UNLOCK (reqlock); |
631 | UNLOCK (reqlock); |
622 | } |
632 | } |
623 | |
633 | |
… | |
… | |
945 | break; |
955 | break; |
946 | |
956 | |
947 | pthread_cond_wait (&reqwait, &reqlock); |
957 | pthread_cond_wait (&reqwait, &reqlock); |
948 | } |
958 | } |
949 | |
959 | |
|
|
960 | --nready; |
|
|
961 | |
950 | UNLOCK (reqlock); |
962 | UNLOCK (reqlock); |
951 | |
963 | |
952 | errno = 0; /* strictly unnecessary */ |
964 | errno = 0; /* strictly unnecessary */ |
953 | type = req->type; /* remember type for QUIT check */ |
965 | type = req->type; /* remember type for QUIT check */ |
954 | |
966 | |
… | |
… | |
998 | } |
1010 | } |
999 | |
1011 | |
1000 | req->errorno = errno; |
1012 | req->errorno = errno; |
1001 | |
1013 | |
1002 | LOCK (reslock); |
1014 | LOCK (reslock); |
|
|
1015 | |
|
|
1016 | ++npending; |
1003 | |
1017 | |
1004 | if (!reqq_push (&res_queue, req)) |
1018 | if (!reqq_push (&res_queue, req)) |
1005 | /* write a dummy byte to the pipe so fh becomes ready */ |
1019 | /* write a dummy byte to the pipe so fh becomes ready */ |
1006 | write (respipe [1], &respipe, 1); |
1020 | write (respipe [1], &respipe, 1); |
1007 | |
1021 | |
… | |
… | |
1392 | req->type = REQ_NOP; |
1406 | req->type = REQ_NOP; |
1393 | |
1407 | |
1394 | REQ_SEND; |
1408 | REQ_SEND; |
1395 | } |
1409 | } |
1396 | |
1410 | |
1397 | void |
1411 | int |
1398 | aioreq_pri (int pri = DEFAULT_PRI) |
1412 | aioreq_pri (int pri = 0) |
1399 | CODE: |
1413 | PROTOTYPE: ;$ |
|
|
1414 | CODE: |
|
|
1415 | RETVAL = next_pri - PRI_BIAS; |
|
|
1416 | if (items > 0) |
|
|
1417 | { |
1400 | if (pri < PRI_MIN) pri = PRI_MIN; |
1418 | if (pri < PRI_MIN) pri = PRI_MIN; |
1401 | if (pri > PRI_MAX) pri = PRI_MAX; |
1419 | if (pri > PRI_MAX) pri = PRI_MAX; |
1402 | next_pri = pri + PRI_BIAS; |
1420 | next_pri = pri + PRI_BIAS; |
|
|
1421 | } |
|
|
1422 | OUTPUT: |
|
|
1423 | RETVAL |
1403 | |
1424 | |
1404 | void |
1425 | void |
1405 | aioreq_nice (int nice = 0) |
1426 | aioreq_nice (int nice = 0) |
1406 | CODE: |
1427 | CODE: |
1407 | nice = next_pri - nice; |
1428 | nice = next_pri - nice; |
1408 | if (nice < PRI_MIN) nice = PRI_MIN; |
1429 | if (nice < PRI_MIN) nice = PRI_MIN; |
1409 | if (nice > PRI_MAX) nice = PRI_MAX; |
1430 | if (nice > PRI_MAX) nice = PRI_MAX; |
1410 | next_pri = nice + PRI_BIAS; |
1431 | next_pri = nice + PRI_BIAS; |
1411 | |
1432 | |
1412 | void |
1433 | void |
1413 | flush () |
1434 | flush () |
1414 | PROTOTYPE: |
1435 | PROTOTYPE: |
1415 | CODE: |
1436 | CODE: |
… | |
… | |
1466 | CODE: |
1487 | CODE: |
1467 | RETVAL = nreqs; |
1488 | RETVAL = nreqs; |
1468 | OUTPUT: |
1489 | OUTPUT: |
1469 | RETVAL |
1490 | RETVAL |
1470 | |
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 | |
1471 | PROTOTYPES: DISABLE |
1512 | PROTOTYPES: DISABLE |
1472 | |
1513 | |
1473 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1514 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1474 | |
1515 | |
1475 | void |
1516 | void |
… | |
… | |
1526 | void |
1567 | void |
1527 | result (aio_req grp, ...) |
1568 | result (aio_req grp, ...) |
1528 | CODE: |
1569 | CODE: |
1529 | { |
1570 | { |
1530 | int i; |
1571 | int i; |
|
|
1572 | AV *av; |
|
|
1573 | |
|
|
1574 | grp->errorno = errno; |
|
|
1575 | |
1531 | AV *av = newAV (); |
1576 | av = newAV (); |
1532 | |
1577 | |
1533 | for (i = 1; i < items; ++i ) |
1578 | for (i = 1; i < items; ++i ) |
1534 | av_push (av, newSVsv (ST (i))); |
1579 | av_push (av, newSVsv (ST (i))); |
1535 | |
1580 | |
1536 | SvREFCNT_dec (grp->data); |
1581 | SvREFCNT_dec (grp->data); |
1537 | grp->data = (SV *)av; |
1582 | grp->data = (SV *)av; |
1538 | } |
1583 | } |
|
|
1584 | |
|
|
1585 | void |
|
|
1586 | errno (aio_req grp, int errorno = errno) |
|
|
1587 | CODE: |
|
|
1588 | grp->errorno = errorno; |
1539 | |
1589 | |
1540 | void |
1590 | void |
1541 | limit (aio_req grp, int limit) |
1591 | limit (aio_req grp, int limit) |
1542 | CODE: |
1592 | CODE: |
1543 | grp->fd2 = limit; |
1593 | grp->fd2 = limit; |