1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
34 | * by deleting the provisions above and replace them with the notice |
34 | * by deleting the provisions above and replace them with the notice |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
|
|
40 | #ifdef __cplusplus |
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|
41 | extern "C" { |
|
|
42 | #endif |
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|
43 | |
39 | |
44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
… | |
… | |
182 | # include EV_H |
178 | # include EV_H |
183 | #else |
179 | #else |
184 | # include "ev.h" |
180 | # include "ev.h" |
185 | #endif |
181 | #endif |
186 | |
182 | |
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|
183 | EV_CPP(extern "C" {) |
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|
184 | |
187 | #ifndef _WIN32 |
185 | #ifndef _WIN32 |
188 | # include <sys/time.h> |
186 | # include <sys/time.h> |
189 | # include <sys/wait.h> |
187 | # include <sys/wait.h> |
190 | # include <unistd.h> |
188 | # include <unistd.h> |
191 | #else |
189 | #else |
… | |
… | |
384 | # include <sys/select.h> |
382 | # include <sys/select.h> |
385 | # endif |
383 | # endif |
386 | #endif |
384 | #endif |
387 | |
385 | |
388 | #if EV_USE_INOTIFY |
386 | #if EV_USE_INOTIFY |
389 | # include <sys/utsname.h> |
|
|
390 | # include <sys/statfs.h> |
387 | # include <sys/statfs.h> |
391 | # include <sys/inotify.h> |
388 | # include <sys/inotify.h> |
392 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
389 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
393 | # ifndef IN_DONT_FOLLOW |
390 | # ifndef IN_DONT_FOLLOW |
394 | # undef EV_USE_INOTIFY |
391 | # undef EV_USE_INOTIFY |
… | |
… | |
411 | # define EFD_CLOEXEC O_CLOEXEC |
408 | # define EFD_CLOEXEC O_CLOEXEC |
412 | # else |
409 | # else |
413 | # define EFD_CLOEXEC 02000000 |
410 | # define EFD_CLOEXEC 02000000 |
414 | # endif |
411 | # endif |
415 | # endif |
412 | # endif |
416 | # ifdef __cplusplus |
|
|
417 | extern "C" { |
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|
418 | # endif |
|
|
419 | int (eventfd) (unsigned int initval, int flags); |
413 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
420 | # ifdef __cplusplus |
|
|
421 | } |
|
|
422 | # endif |
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|
423 | #endif |
414 | #endif |
424 | |
415 | |
425 | #if EV_USE_SIGNALFD |
416 | #if EV_USE_SIGNALFD |
426 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
417 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
427 | # include <stdint.h> |
418 | # include <stdint.h> |
… | |
… | |
433 | # define SFD_CLOEXEC O_CLOEXEC |
424 | # define SFD_CLOEXEC O_CLOEXEC |
434 | # else |
425 | # else |
435 | # define SFD_CLOEXEC 02000000 |
426 | # define SFD_CLOEXEC 02000000 |
436 | # endif |
427 | # endif |
437 | # endif |
428 | # endif |
438 | # ifdef __cplusplus |
|
|
439 | extern "C" { |
|
|
440 | # endif |
|
|
441 | int signalfd (int fd, const sigset_t *mask, int flags); |
429 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
442 | |
430 | |
443 | struct signalfd_siginfo |
431 | struct signalfd_siginfo |
444 | { |
432 | { |
445 | uint32_t ssi_signo; |
433 | uint32_t ssi_signo; |
446 | char pad[128 - sizeof (uint32_t)]; |
434 | char pad[128 - sizeof (uint32_t)]; |
447 | }; |
435 | }; |
448 | # ifdef __cplusplus |
|
|
449 | } |
|
|
450 | # endif |
|
|
451 | #endif |
436 | #endif |
452 | |
437 | |
453 | /**/ |
438 | /**/ |
454 | |
439 | |
455 | #if EV_VERIFY >= 3 |
440 | #if EV_VERIFY >= 3 |
… | |
… | |
537 | # include "ev_win32.c" |
522 | # include "ev_win32.c" |
538 | #endif |
523 | #endif |
539 | |
524 | |
540 | /*****************************************************************************/ |
525 | /*****************************************************************************/ |
541 | |
526 | |
|
|
527 | #ifdef __linux |
|
|
528 | # include <sys/utsname.h> |
|
|
529 | #endif |
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|
530 | |
|
|
531 | static unsigned int noinline |
|
|
532 | ev_linux_version (void) |
|
|
533 | { |
|
|
534 | #ifdef __linux |
|
|
535 | unsigned int v = 0; |
|
|
536 | struct utsname buf; |
|
|
537 | int i; |
|
|
538 | char *p = buf.release; |
|
|
539 | |
|
|
540 | if (uname (&buf)) |
|
|
541 | return 0; |
|
|
542 | |
|
|
543 | for (i = 3+1; --i; ) |
|
|
544 | { |
|
|
545 | unsigned int c = 0; |
|
|
546 | |
|
|
547 | for (;;) |
|
|
548 | { |
|
|
549 | if (*p >= '0' && *p <= '9') |
|
|
550 | c = c * 10 + *p++ - '0'; |
|
|
551 | else |
|
|
552 | { |
|
|
553 | p += *p == '.'; |
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|
554 | break; |
|
|
555 | } |
|
|
556 | } |
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|
557 | |
|
|
558 | v = (v << 8) | c; |
|
|
559 | } |
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|
560 | |
|
|
561 | return v; |
|
|
562 | #else |
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563 | return 0; |
|
|
564 | #endif |
|
|
565 | } |
|
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566 | |
|
|
567 | /*****************************************************************************/ |
|
|
568 | |
542 | #if EV_AVOID_STDIO |
569 | #if EV_AVOID_STDIO |
543 | static void noinline |
570 | static void noinline |
544 | ev_printerr (const char *msg) |
571 | ev_printerr (const char *msg) |
545 | { |
572 | { |
546 | write (STDERR_FILENO, msg, strlen (msg)); |
573 | write (STDERR_FILENO, msg, strlen (msg)); |
… | |
… | |
564 | if (syserr_cb) |
591 | if (syserr_cb) |
565 | syserr_cb (msg); |
592 | syserr_cb (msg); |
566 | else |
593 | else |
567 | { |
594 | { |
568 | #if EV_AVOID_STDIO |
595 | #if EV_AVOID_STDIO |
569 | const char *err = strerror (errno); |
|
|
570 | |
|
|
571 | ev_printerr (msg); |
596 | ev_printerr (msg); |
572 | ev_printerr (": "); |
597 | ev_printerr (": "); |
573 | ev_printerr (err); |
598 | ev_printerr (strerror (errno)); |
574 | ev_printerr ("\n"); |
599 | ev_printerr ("\n"); |
575 | #else |
600 | #else |
576 | perror (msg); |
601 | perror (msg); |
577 | #endif |
602 | #endif |
578 | abort (); |
603 | abort (); |
… | |
… | |
612 | ptr = alloc (ptr, size); |
637 | ptr = alloc (ptr, size); |
613 | |
638 | |
614 | if (!ptr && size) |
639 | if (!ptr && size) |
615 | { |
640 | { |
616 | #if EV_AVOID_STDIO |
641 | #if EV_AVOID_STDIO |
617 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
642 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
618 | #else |
643 | #else |
619 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
644 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
620 | #endif |
645 | #endif |
621 | abort (); |
646 | abort (); |
622 | } |
647 | } |
623 | |
648 | |
624 | return ptr; |
649 | return ptr; |
… | |
… | |
641 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
666 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
642 | unsigned char unused; |
667 | unsigned char unused; |
643 | #if EV_USE_EPOLL |
668 | #if EV_USE_EPOLL |
644 | unsigned int egen; /* generation counter to counter epoll bugs */ |
669 | unsigned int egen; /* generation counter to counter epoll bugs */ |
645 | #endif |
670 | #endif |
646 | #if EV_SELECT_IS_WINSOCKET |
671 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
647 | SOCKET handle; |
672 | SOCKET handle; |
|
|
673 | #endif |
|
|
674 | #if EV_USE_IOCP |
|
|
675 | OVERLAPPED or, ow; |
648 | #endif |
676 | #endif |
649 | } ANFD; |
677 | } ANFD; |
650 | |
678 | |
651 | /* stores the pending event set for a given watcher */ |
679 | /* stores the pending event set for a given watcher */ |
652 | typedef struct |
680 | typedef struct |
… | |
… | |
717 | # define EV_RELEASE_CB (void)0 |
745 | # define EV_RELEASE_CB (void)0 |
718 | # define EV_ACQUIRE_CB (void)0 |
746 | # define EV_ACQUIRE_CB (void)0 |
719 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
747 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
720 | #endif |
748 | #endif |
721 | |
749 | |
722 | #define EVUNLOOP_RECURSE 0x80 |
750 | #define EVBREAK_RECURSE 0x80 |
723 | |
751 | |
724 | /*****************************************************************************/ |
752 | /*****************************************************************************/ |
725 | |
753 | |
726 | #ifndef EV_HAVE_EV_TIME |
754 | #ifndef EV_HAVE_EV_TIME |
727 | ev_tstamp |
755 | ev_tstamp |
… | |
… | |
785 | /* by older ones */ |
813 | /* by older ones */ |
786 | EV_TV_SET (tv, delay); |
814 | EV_TV_SET (tv, delay); |
787 | select (0, 0, 0, 0, &tv); |
815 | select (0, 0, 0, 0, &tv); |
788 | #endif |
816 | #endif |
789 | } |
817 | } |
|
|
818 | } |
|
|
819 | |
|
|
820 | inline_speed int |
|
|
821 | ev_timeout_to_ms (ev_tstamp timeout) |
|
|
822 | { |
|
|
823 | int ms = timeout * 1000. + .999999; |
|
|
824 | |
|
|
825 | return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1; |
790 | } |
826 | } |
791 | |
827 | |
792 | /*****************************************************************************/ |
828 | /*****************************************************************************/ |
793 | |
829 | |
794 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
830 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
… | |
… | |
948 | unsigned char o_events = anfd->events; |
984 | unsigned char o_events = anfd->events; |
949 | unsigned char o_reify = anfd->reify; |
985 | unsigned char o_reify = anfd->reify; |
950 | |
986 | |
951 | anfd->reify = 0; |
987 | anfd->reify = 0; |
952 | |
988 | |
953 | #if EV_SELECT_IS_WINSOCKET |
989 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
954 | if (o_reify & EV__IOFDSET) |
990 | if (o_reify & EV__IOFDSET) |
955 | { |
991 | { |
956 | unsigned long arg; |
992 | unsigned long arg; |
957 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
993 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
958 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
994 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
|
|
995 | printf ("oi %d %x\n", fd, anfd->handle);//D |
959 | } |
996 | } |
960 | #endif |
997 | #endif |
961 | |
998 | |
962 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
999 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
963 | { |
1000 | { |
… | |
… | |
1314 | char dummy; |
1351 | char dummy; |
1315 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1352 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1316 | read (evpipe [0], &dummy, 1); |
1353 | read (evpipe [0], &dummy, 1); |
1317 | } |
1354 | } |
1318 | |
1355 | |
|
|
1356 | #if EV_SIGNAL_ENABLE |
1319 | if (sig_pending) |
1357 | if (sig_pending) |
1320 | { |
1358 | { |
1321 | sig_pending = 0; |
1359 | sig_pending = 0; |
1322 | |
1360 | |
1323 | for (i = EV_NSIG - 1; i--; ) |
1361 | for (i = EV_NSIG - 1; i--; ) |
1324 | if (expect_false (signals [i].pending)) |
1362 | if (expect_false (signals [i].pending)) |
1325 | ev_feed_signal_event (EV_A_ i + 1); |
1363 | ev_feed_signal_event (EV_A_ i + 1); |
1326 | } |
1364 | } |
|
|
1365 | #endif |
1327 | |
1366 | |
1328 | #if EV_ASYNC_ENABLE |
1367 | #if EV_ASYNC_ENABLE |
1329 | if (async_pending) |
1368 | if (async_pending) |
1330 | { |
1369 | { |
1331 | async_pending = 0; |
1370 | async_pending = 0; |
… | |
… | |
1340 | #endif |
1379 | #endif |
1341 | } |
1380 | } |
1342 | |
1381 | |
1343 | /*****************************************************************************/ |
1382 | /*****************************************************************************/ |
1344 | |
1383 | |
|
|
1384 | void |
|
|
1385 | ev_feed_signal (int signum) |
|
|
1386 | { |
|
|
1387 | #if EV_MULTIPLICITY |
|
|
1388 | EV_P = signals [signum - 1].loop; |
|
|
1389 | |
|
|
1390 | if (!EV_A) |
|
|
1391 | return; |
|
|
1392 | #endif |
|
|
1393 | |
|
|
1394 | signals [signum - 1].pending = 1; |
|
|
1395 | evpipe_write (EV_A_ &sig_pending); |
|
|
1396 | } |
|
|
1397 | |
1345 | static void |
1398 | static void |
1346 | ev_sighandler (int signum) |
1399 | ev_sighandler (int signum) |
1347 | { |
1400 | { |
1348 | #if EV_MULTIPLICITY |
|
|
1349 | EV_P = signals [signum - 1].loop; |
|
|
1350 | #endif |
|
|
1351 | |
|
|
1352 | #ifdef _WIN32 |
1401 | #ifdef _WIN32 |
1353 | signal (signum, ev_sighandler); |
1402 | signal (signum, ev_sighandler); |
1354 | #endif |
1403 | #endif |
1355 | |
1404 | |
1356 | signals [signum - 1].pending = 1; |
1405 | ev_feed_signal (signum); |
1357 | evpipe_write (EV_A_ &sig_pending); |
|
|
1358 | } |
1406 | } |
1359 | |
1407 | |
1360 | void noinline |
1408 | void noinline |
1361 | ev_feed_signal_event (EV_P_ int signum) |
1409 | ev_feed_signal_event (EV_P_ int signum) |
1362 | { |
1410 | { |
… | |
… | |
1462 | |
1510 | |
1463 | #endif |
1511 | #endif |
1464 | |
1512 | |
1465 | /*****************************************************************************/ |
1513 | /*****************************************************************************/ |
1466 | |
1514 | |
|
|
1515 | #if EV_USE_IOCP |
|
|
1516 | # include "ev_iocp.c" |
|
|
1517 | #endif |
1467 | #if EV_USE_PORT |
1518 | #if EV_USE_PORT |
1468 | # include "ev_port.c" |
1519 | # include "ev_port.c" |
1469 | #endif |
1520 | #endif |
1470 | #if EV_USE_KQUEUE |
1521 | #if EV_USE_KQUEUE |
1471 | # include "ev_kqueue.c" |
1522 | # include "ev_kqueue.c" |
… | |
… | |
1544 | ev_embeddable_backends (void) |
1595 | ev_embeddable_backends (void) |
1545 | { |
1596 | { |
1546 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1597 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1547 | |
1598 | |
1548 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1599 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1549 | /* please fix it and tell me how to detect the fix */ |
1600 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1550 | flags &= ~EVBACKEND_EPOLL; |
1601 | flags &= ~EVBACKEND_EPOLL; |
1551 | |
1602 | |
1552 | return flags; |
1603 | return flags; |
1553 | } |
1604 | } |
1554 | |
1605 | |
1555 | unsigned int |
1606 | unsigned int |
… | |
… | |
1611 | static void noinline |
1662 | static void noinline |
1612 | loop_init (EV_P_ unsigned int flags) |
1663 | loop_init (EV_P_ unsigned int flags) |
1613 | { |
1664 | { |
1614 | if (!backend) |
1665 | if (!backend) |
1615 | { |
1666 | { |
|
|
1667 | origflags = flags; |
|
|
1668 | |
1616 | #if EV_USE_REALTIME |
1669 | #if EV_USE_REALTIME |
1617 | if (!have_realtime) |
1670 | if (!have_realtime) |
1618 | { |
1671 | { |
1619 | struct timespec ts; |
1672 | struct timespec ts; |
1620 | |
1673 | |
… | |
… | |
1665 | #endif |
1718 | #endif |
1666 | #if EV_USE_SIGNALFD |
1719 | #if EV_USE_SIGNALFD |
1667 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1720 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1668 | #endif |
1721 | #endif |
1669 | |
1722 | |
1670 | if (!(flags & 0x0000ffffU)) |
1723 | if (!(flags & EVBACKEND_MASK)) |
1671 | flags |= ev_recommended_backends (); |
1724 | flags |= ev_recommended_backends (); |
1672 | |
1725 | |
|
|
1726 | #if EV_USE_IOCP |
|
|
1727 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
1728 | #endif |
1673 | #if EV_USE_PORT |
1729 | #if EV_USE_PORT |
1674 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1730 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1675 | #endif |
1731 | #endif |
1676 | #if EV_USE_KQUEUE |
1732 | #if EV_USE_KQUEUE |
1677 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1733 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1694 | #endif |
1750 | #endif |
1695 | } |
1751 | } |
1696 | } |
1752 | } |
1697 | |
1753 | |
1698 | /* free up a loop structure */ |
1754 | /* free up a loop structure */ |
1699 | static void noinline |
1755 | void |
1700 | loop_destroy (EV_P) |
1756 | ev_loop_destroy (EV_P) |
1701 | { |
1757 | { |
1702 | int i; |
1758 | int i; |
|
|
1759 | |
|
|
1760 | #if EV_MULTIPLICITY |
|
|
1761 | /* mimic free (0) */ |
|
|
1762 | if (!EV_A) |
|
|
1763 | return; |
|
|
1764 | #endif |
|
|
1765 | |
|
|
1766 | #if EV_CLEANUP_ENABLE |
|
|
1767 | /* queue cleanup watchers (and execute them) */ |
|
|
1768 | if (expect_false (cleanupcnt)) |
|
|
1769 | { |
|
|
1770 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
1771 | EV_INVOKE_PENDING; |
|
|
1772 | } |
|
|
1773 | #endif |
|
|
1774 | |
|
|
1775 | #if EV_CHILD_ENABLE |
|
|
1776 | if (ev_is_active (&childev)) |
|
|
1777 | { |
|
|
1778 | ev_ref (EV_A); /* child watcher */ |
|
|
1779 | ev_signal_stop (EV_A_ &childev); |
|
|
1780 | } |
|
|
1781 | #endif |
1703 | |
1782 | |
1704 | if (ev_is_active (&pipe_w)) |
1783 | if (ev_is_active (&pipe_w)) |
1705 | { |
1784 | { |
1706 | /*ev_ref (EV_A);*/ |
1785 | /*ev_ref (EV_A);*/ |
1707 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1786 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
… | |
… | |
1729 | #endif |
1808 | #endif |
1730 | |
1809 | |
1731 | if (backend_fd >= 0) |
1810 | if (backend_fd >= 0) |
1732 | close (backend_fd); |
1811 | close (backend_fd); |
1733 | |
1812 | |
|
|
1813 | #if EV_USE_IOCP |
|
|
1814 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
1815 | #endif |
1734 | #if EV_USE_PORT |
1816 | #if EV_USE_PORT |
1735 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1817 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1736 | #endif |
1818 | #endif |
1737 | #if EV_USE_KQUEUE |
1819 | #if EV_USE_KQUEUE |
1738 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
1820 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1765 | array_free (periodic, EMPTY); |
1847 | array_free (periodic, EMPTY); |
1766 | #endif |
1848 | #endif |
1767 | #if EV_FORK_ENABLE |
1849 | #if EV_FORK_ENABLE |
1768 | array_free (fork, EMPTY); |
1850 | array_free (fork, EMPTY); |
1769 | #endif |
1851 | #endif |
|
|
1852 | #if EV_CLEANUP_ENABLE |
|
|
1853 | array_free (cleanup, EMPTY); |
|
|
1854 | #endif |
1770 | array_free (prepare, EMPTY); |
1855 | array_free (prepare, EMPTY); |
1771 | array_free (check, EMPTY); |
1856 | array_free (check, EMPTY); |
1772 | #if EV_ASYNC_ENABLE |
1857 | #if EV_ASYNC_ENABLE |
1773 | array_free (async, EMPTY); |
1858 | array_free (async, EMPTY); |
1774 | #endif |
1859 | #endif |
1775 | |
1860 | |
1776 | backend = 0; |
1861 | backend = 0; |
|
|
1862 | |
|
|
1863 | #if EV_MULTIPLICITY |
|
|
1864 | if (ev_is_default_loop (EV_A)) |
|
|
1865 | #endif |
|
|
1866 | ev_default_loop_ptr = 0; |
|
|
1867 | #if EV_MULTIPLICITY |
|
|
1868 | else |
|
|
1869 | ev_free (EV_A); |
|
|
1870 | #endif |
1777 | } |
1871 | } |
1778 | |
1872 | |
1779 | #if EV_USE_INOTIFY |
1873 | #if EV_USE_INOTIFY |
1780 | inline_size void infy_fork (EV_P); |
1874 | inline_size void infy_fork (EV_P); |
1781 | #endif |
1875 | #endif |
… | |
… | |
1840 | loop_init (EV_A_ flags); |
1934 | loop_init (EV_A_ flags); |
1841 | |
1935 | |
1842 | if (ev_backend (EV_A)) |
1936 | if (ev_backend (EV_A)) |
1843 | return EV_A; |
1937 | return EV_A; |
1844 | |
1938 | |
|
|
1939 | ev_free (EV_A); |
1845 | return 0; |
1940 | return 0; |
1846 | } |
1941 | } |
1847 | |
1942 | |
1848 | void |
|
|
1849 | ev_loop_destroy (EV_P) |
|
|
1850 | { |
|
|
1851 | loop_destroy (EV_A); |
|
|
1852 | ev_free (loop); |
|
|
1853 | } |
|
|
1854 | |
|
|
1855 | void |
|
|
1856 | ev_loop_fork (EV_P) |
|
|
1857 | { |
|
|
1858 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1859 | } |
|
|
1860 | #endif /* multiplicity */ |
1943 | #endif /* multiplicity */ |
1861 | |
1944 | |
1862 | #if EV_VERIFY |
1945 | #if EV_VERIFY |
1863 | static void noinline |
1946 | static void noinline |
1864 | verify_watcher (EV_P_ W w) |
1947 | verify_watcher (EV_P_ W w) |
… | |
… | |
1939 | #if EV_FORK_ENABLE |
2022 | #if EV_FORK_ENABLE |
1940 | assert (forkmax >= forkcnt); |
2023 | assert (forkmax >= forkcnt); |
1941 | array_verify (EV_A_ (W *)forks, forkcnt); |
2024 | array_verify (EV_A_ (W *)forks, forkcnt); |
1942 | #endif |
2025 | #endif |
1943 | |
2026 | |
|
|
2027 | #if EV_CLEANUP_ENABLE |
|
|
2028 | assert (cleanupmax >= cleanupcnt); |
|
|
2029 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2030 | #endif |
|
|
2031 | |
1944 | #if EV_ASYNC_ENABLE |
2032 | #if EV_ASYNC_ENABLE |
1945 | assert (asyncmax >= asynccnt); |
2033 | assert (asyncmax >= asynccnt); |
1946 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2034 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1947 | #endif |
2035 | #endif |
1948 | |
2036 | |
… | |
… | |
1966 | } |
2054 | } |
1967 | #endif |
2055 | #endif |
1968 | |
2056 | |
1969 | #if EV_MULTIPLICITY |
2057 | #if EV_MULTIPLICITY |
1970 | struct ev_loop * |
2058 | struct ev_loop * |
1971 | ev_default_loop_init (unsigned int flags) |
|
|
1972 | #else |
2059 | #else |
1973 | int |
2060 | int |
|
|
2061 | #endif |
1974 | ev_default_loop (unsigned int flags) |
2062 | ev_default_loop (unsigned int flags) |
1975 | #endif |
|
|
1976 | { |
2063 | { |
1977 | if (!ev_default_loop_ptr) |
2064 | if (!ev_default_loop_ptr) |
1978 | { |
2065 | { |
1979 | #if EV_MULTIPLICITY |
2066 | #if EV_MULTIPLICITY |
1980 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2067 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
1999 | |
2086 | |
2000 | return ev_default_loop_ptr; |
2087 | return ev_default_loop_ptr; |
2001 | } |
2088 | } |
2002 | |
2089 | |
2003 | void |
2090 | void |
2004 | ev_default_destroy (void) |
2091 | ev_loop_fork (EV_P) |
2005 | { |
2092 | { |
2006 | #if EV_MULTIPLICITY |
|
|
2007 | EV_P = ev_default_loop_ptr; |
|
|
2008 | #endif |
|
|
2009 | |
|
|
2010 | ev_default_loop_ptr = 0; |
|
|
2011 | |
|
|
2012 | #if EV_CHILD_ENABLE |
|
|
2013 | ev_ref (EV_A); /* child watcher */ |
|
|
2014 | ev_signal_stop (EV_A_ &childev); |
|
|
2015 | #endif |
|
|
2016 | |
|
|
2017 | loop_destroy (EV_A); |
|
|
2018 | } |
|
|
2019 | |
|
|
2020 | void |
|
|
2021 | ev_default_fork (void) |
|
|
2022 | { |
|
|
2023 | #if EV_MULTIPLICITY |
|
|
2024 | EV_P = ev_default_loop_ptr; |
|
|
2025 | #endif |
|
|
2026 | |
|
|
2027 | postfork = 1; /* must be in line with ev_loop_fork */ |
2093 | postfork = 1; /* must be in line with ev_default_fork */ |
2028 | } |
2094 | } |
2029 | |
2095 | |
2030 | /*****************************************************************************/ |
2096 | /*****************************************************************************/ |
2031 | |
2097 | |
2032 | void |
2098 | void |
… | |
… | |
2054 | |
2120 | |
2055 | for (pri = NUMPRI; pri--; ) |
2121 | for (pri = NUMPRI; pri--; ) |
2056 | while (pendingcnt [pri]) |
2122 | while (pendingcnt [pri]) |
2057 | { |
2123 | { |
2058 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2124 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2059 | |
|
|
2060 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2061 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
2062 | |
2125 | |
2063 | p->w->pending = 0; |
2126 | p->w->pending = 0; |
2064 | EV_CB_INVOKE (p->w, p->events); |
2127 | EV_CB_INVOKE (p->w, p->events); |
2065 | EV_FREQUENT_CHECK; |
2128 | EV_FREQUENT_CHECK; |
2066 | } |
2129 | } |
… | |
… | |
2292 | mn_now = ev_rt_now; |
2355 | mn_now = ev_rt_now; |
2293 | } |
2356 | } |
2294 | } |
2357 | } |
2295 | |
2358 | |
2296 | void |
2359 | void |
2297 | ev_loop (EV_P_ int flags) |
2360 | ev_run (EV_P_ int flags) |
2298 | { |
2361 | { |
2299 | #if EV_FEATURE_API |
2362 | #if EV_FEATURE_API |
2300 | ++loop_depth; |
2363 | ++loop_depth; |
2301 | #endif |
2364 | #endif |
2302 | |
2365 | |
2303 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
2366 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
2304 | |
2367 | |
2305 | loop_done = EVUNLOOP_CANCEL; |
2368 | loop_done = EVBREAK_CANCEL; |
2306 | |
2369 | |
2307 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2370 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2308 | |
2371 | |
2309 | do |
2372 | do |
2310 | { |
2373 | { |
… | |
… | |
2353 | /* calculate blocking time */ |
2416 | /* calculate blocking time */ |
2354 | { |
2417 | { |
2355 | ev_tstamp waittime = 0.; |
2418 | ev_tstamp waittime = 0.; |
2356 | ev_tstamp sleeptime = 0.; |
2419 | ev_tstamp sleeptime = 0.; |
2357 | |
2420 | |
|
|
2421 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2422 | ev_tstamp prev_mn_now = mn_now; |
|
|
2423 | |
|
|
2424 | /* update time to cancel out callback processing overhead */ |
|
|
2425 | time_update (EV_A_ 1e100); |
|
|
2426 | |
2358 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2427 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
2359 | { |
2428 | { |
2360 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2361 | ev_tstamp prev_mn_now = mn_now; |
|
|
2362 | |
|
|
2363 | /* update time to cancel out callback processing overhead */ |
|
|
2364 | time_update (EV_A_ 1e100); |
|
|
2365 | |
|
|
2366 | waittime = MAX_BLOCKTIME; |
2429 | waittime = MAX_BLOCKTIME; |
2367 | |
2430 | |
2368 | if (timercnt) |
2431 | if (timercnt) |
2369 | { |
2432 | { |
2370 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2433 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
… | |
… | |
2400 | } |
2463 | } |
2401 | |
2464 | |
2402 | #if EV_FEATURE_API |
2465 | #if EV_FEATURE_API |
2403 | ++loop_count; |
2466 | ++loop_count; |
2404 | #endif |
2467 | #endif |
2405 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2468 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2406 | backend_poll (EV_A_ waittime); |
2469 | backend_poll (EV_A_ waittime); |
2407 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2470 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2408 | |
2471 | |
2409 | /* update ev_rt_now, do magic */ |
2472 | /* update ev_rt_now, do magic */ |
2410 | time_update (EV_A_ waittime + sleeptime); |
2473 | time_update (EV_A_ waittime + sleeptime); |
2411 | } |
2474 | } |
2412 | |
2475 | |
… | |
… | |
2430 | EV_INVOKE_PENDING; |
2493 | EV_INVOKE_PENDING; |
2431 | } |
2494 | } |
2432 | while (expect_true ( |
2495 | while (expect_true ( |
2433 | activecnt |
2496 | activecnt |
2434 | && !loop_done |
2497 | && !loop_done |
2435 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2498 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2436 | )); |
2499 | )); |
2437 | |
2500 | |
2438 | if (loop_done == EVUNLOOP_ONE) |
2501 | if (loop_done == EVBREAK_ONE) |
2439 | loop_done = EVUNLOOP_CANCEL; |
2502 | loop_done = EVBREAK_CANCEL; |
2440 | |
2503 | |
2441 | #if EV_FEATURE_API |
2504 | #if EV_FEATURE_API |
2442 | --loop_depth; |
2505 | --loop_depth; |
2443 | #endif |
2506 | #endif |
2444 | } |
2507 | } |
2445 | |
2508 | |
2446 | void |
2509 | void |
2447 | ev_unloop (EV_P_ int how) |
2510 | ev_break (EV_P_ int how) |
2448 | { |
2511 | { |
2449 | loop_done = how; |
2512 | loop_done = how; |
2450 | } |
2513 | } |
2451 | |
2514 | |
2452 | void |
2515 | void |
… | |
… | |
2834 | sa.sa_handler = ev_sighandler; |
2897 | sa.sa_handler = ev_sighandler; |
2835 | sigfillset (&sa.sa_mask); |
2898 | sigfillset (&sa.sa_mask); |
2836 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2899 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2837 | sigaction (w->signum, &sa, 0); |
2900 | sigaction (w->signum, &sa, 0); |
2838 | |
2901 | |
|
|
2902 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
2903 | { |
2839 | sigemptyset (&sa.sa_mask); |
2904 | sigemptyset (&sa.sa_mask); |
2840 | sigaddset (&sa.sa_mask, w->signum); |
2905 | sigaddset (&sa.sa_mask, w->signum); |
2841 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2906 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
2907 | } |
2842 | #endif |
2908 | #endif |
2843 | } |
2909 | } |
2844 | |
2910 | |
2845 | EV_FREQUENT_CHECK; |
2911 | EV_FREQUENT_CHECK; |
2846 | } |
2912 | } |
… | |
… | |
3062 | { |
3128 | { |
3063 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
3129 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
3064 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3130 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3065 | ofs += sizeof (struct inotify_event) + ev->len; |
3131 | ofs += sizeof (struct inotify_event) + ev->len; |
3066 | } |
3132 | } |
3067 | } |
|
|
3068 | |
|
|
3069 | inline_size unsigned int |
|
|
3070 | ev_linux_version (void) |
|
|
3071 | { |
|
|
3072 | struct utsname buf; |
|
|
3073 | unsigned int v; |
|
|
3074 | int i; |
|
|
3075 | char *p = buf.release; |
|
|
3076 | |
|
|
3077 | if (uname (&buf)) |
|
|
3078 | return 0; |
|
|
3079 | |
|
|
3080 | for (i = 3+1; --i; ) |
|
|
3081 | { |
|
|
3082 | unsigned int c = 0; |
|
|
3083 | |
|
|
3084 | for (;;) |
|
|
3085 | { |
|
|
3086 | if (*p >= '0' && *p <= '9') |
|
|
3087 | c = c * 10 + *p++ - '0'; |
|
|
3088 | else |
|
|
3089 | { |
|
|
3090 | p += *p == '.'; |
|
|
3091 | break; |
|
|
3092 | } |
|
|
3093 | } |
|
|
3094 | |
|
|
3095 | v = (v << 8) | c; |
|
|
3096 | } |
|
|
3097 | |
|
|
3098 | return v; |
|
|
3099 | } |
3133 | } |
3100 | |
3134 | |
3101 | inline_size void |
3135 | inline_size void |
3102 | ev_check_2625 (EV_P) |
3136 | ev_check_2625 (EV_P) |
3103 | { |
3137 | { |
… | |
… | |
3427 | |
3461 | |
3428 | #if EV_EMBED_ENABLE |
3462 | #if EV_EMBED_ENABLE |
3429 | void noinline |
3463 | void noinline |
3430 | ev_embed_sweep (EV_P_ ev_embed *w) |
3464 | ev_embed_sweep (EV_P_ ev_embed *w) |
3431 | { |
3465 | { |
3432 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3466 | ev_run (w->other, EVRUN_NOWAIT); |
3433 | } |
3467 | } |
3434 | |
3468 | |
3435 | static void |
3469 | static void |
3436 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3470 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3437 | { |
3471 | { |
3438 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3472 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3439 | |
3473 | |
3440 | if (ev_cb (w)) |
3474 | if (ev_cb (w)) |
3441 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3475 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3442 | else |
3476 | else |
3443 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3477 | ev_run (w->other, EVRUN_NOWAIT); |
3444 | } |
3478 | } |
3445 | |
3479 | |
3446 | static void |
3480 | static void |
3447 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3481 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3448 | { |
3482 | { |
… | |
… | |
3452 | EV_P = w->other; |
3486 | EV_P = w->other; |
3453 | |
3487 | |
3454 | while (fdchangecnt) |
3488 | while (fdchangecnt) |
3455 | { |
3489 | { |
3456 | fd_reify (EV_A); |
3490 | fd_reify (EV_A); |
3457 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3491 | ev_run (EV_A_ EVRUN_NOWAIT); |
3458 | } |
3492 | } |
3459 | } |
3493 | } |
3460 | } |
3494 | } |
3461 | |
3495 | |
3462 | static void |
3496 | static void |
… | |
… | |
3468 | |
3502 | |
3469 | { |
3503 | { |
3470 | EV_P = w->other; |
3504 | EV_P = w->other; |
3471 | |
3505 | |
3472 | ev_loop_fork (EV_A); |
3506 | ev_loop_fork (EV_A); |
3473 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3507 | ev_run (EV_A_ EVRUN_NOWAIT); |
3474 | } |
3508 | } |
3475 | |
3509 | |
3476 | ev_embed_start (EV_A_ w); |
3510 | ev_embed_start (EV_A_ w); |
3477 | } |
3511 | } |
3478 | |
3512 | |
… | |
… | |
3562 | { |
3596 | { |
3563 | int active = ev_active (w); |
3597 | int active = ev_active (w); |
3564 | |
3598 | |
3565 | forks [active - 1] = forks [--forkcnt]; |
3599 | forks [active - 1] = forks [--forkcnt]; |
3566 | ev_active (forks [active - 1]) = active; |
3600 | ev_active (forks [active - 1]) = active; |
|
|
3601 | } |
|
|
3602 | |
|
|
3603 | ev_stop (EV_A_ (W)w); |
|
|
3604 | |
|
|
3605 | EV_FREQUENT_CHECK; |
|
|
3606 | } |
|
|
3607 | #endif |
|
|
3608 | |
|
|
3609 | #if EV_CLEANUP_ENABLE |
|
|
3610 | void |
|
|
3611 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
|
|
3612 | { |
|
|
3613 | if (expect_false (ev_is_active (w))) |
|
|
3614 | return; |
|
|
3615 | |
|
|
3616 | EV_FREQUENT_CHECK; |
|
|
3617 | |
|
|
3618 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
3619 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
3620 | cleanups [cleanupcnt - 1] = w; |
|
|
3621 | |
|
|
3622 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
3623 | ev_unref (EV_A); |
|
|
3624 | EV_FREQUENT_CHECK; |
|
|
3625 | } |
|
|
3626 | |
|
|
3627 | void |
|
|
3628 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
3629 | { |
|
|
3630 | clear_pending (EV_A_ (W)w); |
|
|
3631 | if (expect_false (!ev_is_active (w))) |
|
|
3632 | return; |
|
|
3633 | |
|
|
3634 | EV_FREQUENT_CHECK; |
|
|
3635 | ev_ref (EV_A); |
|
|
3636 | |
|
|
3637 | { |
|
|
3638 | int active = ev_active (w); |
|
|
3639 | |
|
|
3640 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
3641 | ev_active (cleanups [active - 1]) = active; |
3567 | } |
3642 | } |
3568 | |
3643 | |
3569 | ev_stop (EV_A_ (W)w); |
3644 | ev_stop (EV_A_ (W)w); |
3570 | |
3645 | |
3571 | EV_FREQUENT_CHECK; |
3646 | EV_FREQUENT_CHECK; |
… | |
… | |
3807 | |
3882 | |
3808 | #if EV_MULTIPLICITY |
3883 | #if EV_MULTIPLICITY |
3809 | #include "ev_wrap.h" |
3884 | #include "ev_wrap.h" |
3810 | #endif |
3885 | #endif |
3811 | |
3886 | |
3812 | #ifdef __cplusplus |
3887 | EV_CPP(}) |
3813 | } |
|
|
3814 | #endif |
|
|
3815 | |
3888 | |