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Comparing libev/ev.c (file contents):
Revision 1.354 by root, Fri Oct 22 09:24:11 2010 UTC vs.
Revision 1.365 by root, Sun Oct 31 22:01:20 2010 UTC

… …
382# include <sys/select.h> 382# include <sys/select.h>
383# endif 383# endif
384#endif 384#endif
385 385
386#if EV_USE_INOTIFY 386#if EV_USE_INOTIFY
387# include <sys/utsname.h>
388# include <sys/statfs.h> 387# include <sys/statfs.h>
389# include <sys/inotify.h> 388# include <sys/inotify.h>
390/* 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 */
391# ifndef IN_DONT_FOLLOW 390# ifndef IN_DONT_FOLLOW
392# undef EV_USE_INOTIFY 391# undef EV_USE_INOTIFY
… …
523# include "ev_win32.c" 522# include "ev_win32.c"
524#endif 523#endif
525 524
526/*****************************************************************************/ 525/*****************************************************************************/
527 526
527#ifdef __linux
528# include <sys/utsname.h>
529#endif
530
531static unsigned int noinline
532ev_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 == '.';
554 break;
555 }
556 }
557
558 v = (v << 8) | c;
559 }
560
561 return v;
562#else
563 return 0;
564#endif
565}
566
567/*****************************************************************************/
568
528#if EV_AVOID_STDIO 569#if EV_AVOID_STDIO
529static void noinline 570static void noinline
530ev_printerr (const char *msg) 571ev_printerr (const char *msg)
531{ 572{
532 write (STDERR_FILENO, msg, strlen (msg)); 573 write (STDERR_FILENO, msg, strlen (msg));
… …
550 if (syserr_cb) 591 if (syserr_cb)
551 syserr_cb (msg); 592 syserr_cb (msg);
552 else 593 else
553 { 594 {
554#if EV_AVOID_STDIO 595#if EV_AVOID_STDIO
555 const char *err = strerror (errno);
556
557 ev_printerr (msg); 596 ev_printerr (msg);
558 ev_printerr (": "); 597 ev_printerr (": ");
559 ev_printerr (err); 598 ev_printerr (strerror (errno));
560 ev_printerr ("\n"); 599 ev_printerr ("\n");
561#else 600#else
562 perror (msg); 601 perror (msg);
563#endif 602#endif
564 abort (); 603 abort ();
… …
598 ptr = alloc (ptr, size); 637 ptr = alloc (ptr, size);
599 638
600 if (!ptr && size) 639 if (!ptr && size)
601 { 640 {
602#if EV_AVOID_STDIO 641#if EV_AVOID_STDIO
603 ev_printerr ("libev: memory allocation failed, aborting.\n"); 642 ev_printerr ("(libev) memory allocation failed, aborting.\n");
604#else 643#else
605 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 644 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
606#endif 645#endif
607 abort (); 646 abort ();
608 } 647 }
609 648
610 return ptr; 649 return ptr;
… …
627 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 */
628 unsigned char unused; 667 unsigned char unused;
629#if EV_USE_EPOLL 668#if EV_USE_EPOLL
630 unsigned int egen; /* generation counter to counter epoll bugs */ 669 unsigned int egen; /* generation counter to counter epoll bugs */
631#endif 670#endif
632#if EV_SELECT_IS_WINSOCKET 671#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
633 SOCKET handle; 672 SOCKET handle;
673#endif
674#if EV_USE_IOCP
675 OVERLAPPED or, ow;
634#endif 676#endif
635} ANFD; 677} ANFD;
636 678
637/* stores the pending event set for a given watcher */ 679/* stores the pending event set for a given watcher */
638typedef struct 680typedef struct
… …
934 unsigned char o_events = anfd->events; 976 unsigned char o_events = anfd->events;
935 unsigned char o_reify = anfd->reify; 977 unsigned char o_reify = anfd->reify;
936 978
937 anfd->reify = 0; 979 anfd->reify = 0;
938 980
939#if EV_SELECT_IS_WINSOCKET 981#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
940 if (o_reify & EV__IOFDSET) 982 if (o_reify & EV__IOFDSET)
941 { 983 {
942 unsigned long arg; 984 unsigned long arg;
943 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 985 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
944 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 986 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
987 printf ("oi %d %x\n", fd, anfd->handle);//D
945 } 988 }
946#endif 989#endif
947 990
948 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 991 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
949 { 992 {
… …
1448 1491
1449#endif 1492#endif
1450 1493
1451/*****************************************************************************/ 1494/*****************************************************************************/
1452 1495
1496#if EV_USE_IOCP
1497# include "ev_iocp.c"
1498#endif
1453#if EV_USE_PORT 1499#if EV_USE_PORT
1454# include "ev_port.c" 1500# include "ev_port.c"
1455#endif 1501#endif
1456#if EV_USE_KQUEUE 1502#if EV_USE_KQUEUE
1457# include "ev_kqueue.c" 1503# include "ev_kqueue.c"
… …
1530ev_embeddable_backends (void) 1576ev_embeddable_backends (void)
1531{ 1577{
1532 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1578 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1533 1579
1534 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1580 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1535 /* please fix it and tell me how to detect the fix */ 1581 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1536 flags &= ~EVBACKEND_EPOLL; 1582 flags &= ~EVBACKEND_EPOLL;
1537 1583
1538 return flags; 1584 return flags;
1539} 1585}
1540 1586
1541unsigned int 1587unsigned int
… …
1654#endif 1700#endif
1655 1701
1656 if (!(flags & 0x0000ffffU)) 1702 if (!(flags & 0x0000ffffU))
1657 flags |= ev_recommended_backends (); 1703 flags |= ev_recommended_backends ();
1658 1704
1705#if EV_USE_IOCP
1706 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1707#endif
1659#if EV_USE_PORT 1708#if EV_USE_PORT
1660 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1709 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1661#endif 1710#endif
1662#if EV_USE_KQUEUE 1711#if EV_USE_KQUEUE
1663 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1712 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1680#endif 1729#endif
1681 } 1730 }
1682} 1731}
1683 1732
1684/* free up a loop structure */ 1733/* free up a loop structure */
1685static void noinline 1734void
1686loop_destroy (EV_P) 1735ev_loop_destroy (EV_P)
1687{ 1736{
1688 int i; 1737 int i;
1738
1739#if EV_MULTIPLICITY
1740 /* mimic free (0) */
1741 if (!EV_A)
1742 return;
1743#endif
1744
1745#if EV_CLEANUP_ENABLE
1746 /* queue cleanup watchers (and execute them) */
1747 if (expect_false (cleanupcnt))
1748 {
1749 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1750 EV_INVOKE_PENDING;
1751 }
1752#endif
1753
1754#if EV_CHILD_ENABLE
1755 if (ev_is_active (&childev))
1756 {
1757 ev_ref (EV_A); /* child watcher */
1758 ev_signal_stop (EV_A_ &childev);
1759 }
1760#endif
1689 1761
1690 if (ev_is_active (&pipe_w)) 1762 if (ev_is_active (&pipe_w))
1691 { 1763 {
1692 /*ev_ref (EV_A);*/ 1764 /*ev_ref (EV_A);*/
1693 /*ev_io_stop (EV_A_ &pipe_w);*/ 1765 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1715#endif 1787#endif
1716 1788
1717 if (backend_fd >= 0) 1789 if (backend_fd >= 0)
1718 close (backend_fd); 1790 close (backend_fd);
1719 1791
1792#if EV_USE_IOCP
1793 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1794#endif
1720#if EV_USE_PORT 1795#if EV_USE_PORT
1721 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1796 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1722#endif 1797#endif
1723#if EV_USE_KQUEUE 1798#if EV_USE_KQUEUE
1724 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 1799 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1751 array_free (periodic, EMPTY); 1826 array_free (periodic, EMPTY);
1752#endif 1827#endif
1753#if EV_FORK_ENABLE 1828#if EV_FORK_ENABLE
1754 array_free (fork, EMPTY); 1829 array_free (fork, EMPTY);
1755#endif 1830#endif
1831#if EV_CLEANUP_ENABLE
1832 array_free (cleanup, EMPTY);
1833#endif
1756 array_free (prepare, EMPTY); 1834 array_free (prepare, EMPTY);
1757 array_free (check, EMPTY); 1835 array_free (check, EMPTY);
1758#if EV_ASYNC_ENABLE 1836#if EV_ASYNC_ENABLE
1759 array_free (async, EMPTY); 1837 array_free (async, EMPTY);
1760#endif 1838#endif
1761 1839
1762 backend = 0; 1840 backend = 0;
1841
1842#if EV_MULTIPLICITY
1843 if (ev_is_default_loop (EV_A))
1844#endif
1845 ev_default_loop_ptr = 0;
1846#if EV_MULTIPLICITY
1847 else
1848 ev_free (EV_A);
1849#endif
1763} 1850}
1764 1851
1765#if EV_USE_INOTIFY 1852#if EV_USE_INOTIFY
1766inline_size void infy_fork (EV_P); 1853inline_size void infy_fork (EV_P);
1767#endif 1854#endif
… …
1826 loop_init (EV_A_ flags); 1913 loop_init (EV_A_ flags);
1827 1914
1828 if (ev_backend (EV_A)) 1915 if (ev_backend (EV_A))
1829 return EV_A; 1916 return EV_A;
1830 1917
1918 ev_free (EV_A);
1831 return 0; 1919 return 0;
1832} 1920}
1833 1921
1834void
1835ev_loop_destroy (EV_P)
1836{
1837 loop_destroy (EV_A);
1838 ev_free (loop);
1839}
1840
1841void
1842ev_loop_fork (EV_P)
1843{
1844 postfork = 1; /* must be in line with ev_default_fork */
1845}
1846#endif /* multiplicity */ 1922#endif /* multiplicity */
1847 1923
1848#if EV_VERIFY 1924#if EV_VERIFY
1849static void noinline 1925static void noinline
1850verify_watcher (EV_P_ W w) 1926verify_watcher (EV_P_ W w)
… …
1925#if EV_FORK_ENABLE 2001#if EV_FORK_ENABLE
1926 assert (forkmax >= forkcnt); 2002 assert (forkmax >= forkcnt);
1927 array_verify (EV_A_ (W *)forks, forkcnt); 2003 array_verify (EV_A_ (W *)forks, forkcnt);
1928#endif 2004#endif
1929 2005
2006#if EV_CLEANUP_ENABLE
2007 assert (cleanupmax >= cleanupcnt);
2008 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2009#endif
2010
1930#if EV_ASYNC_ENABLE 2011#if EV_ASYNC_ENABLE
1931 assert (asyncmax >= asynccnt); 2012 assert (asyncmax >= asynccnt);
1932 array_verify (EV_A_ (W *)asyncs, asynccnt); 2013 array_verify (EV_A_ (W *)asyncs, asynccnt);
1933#endif 2014#endif
1934 2015
… …
1952} 2033}
1953#endif 2034#endif
1954 2035
1955#if EV_MULTIPLICITY 2036#if EV_MULTIPLICITY
1956struct ev_loop * 2037struct ev_loop *
1957ev_default_loop_init (unsigned int flags)
1958#else 2038#else
1959int 2039int
2040#endif
1960ev_default_loop (unsigned int flags) 2041ev_default_loop (unsigned int flags)
1961#endif
1962{ 2042{
1963 if (!ev_default_loop_ptr) 2043 if (!ev_default_loop_ptr)
1964 { 2044 {
1965#if EV_MULTIPLICITY 2045#if EV_MULTIPLICITY
1966 EV_P = ev_default_loop_ptr = &default_loop_struct; 2046 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1985 2065
1986 return ev_default_loop_ptr; 2066 return ev_default_loop_ptr;
1987} 2067}
1988 2068
1989void 2069void
1990ev_default_destroy (void) 2070ev_loop_fork (EV_P)
1991{ 2071{
1992#if EV_MULTIPLICITY
1993 EV_P = ev_default_loop_ptr;
1994#endif
1995
1996 ev_default_loop_ptr = 0;
1997
1998#if EV_CHILD_ENABLE
1999 ev_ref (EV_A); /* child watcher */
2000 ev_signal_stop (EV_A_ &childev);
2001#endif
2002
2003 loop_destroy (EV_A);
2004}
2005
2006void
2007ev_default_fork (void)
2008{
2009#if EV_MULTIPLICITY
2010 EV_P = ev_default_loop_ptr;
2011#endif
2012
2013 postfork = 1; /* must be in line with ev_loop_fork */ 2072 postfork = 1; /* must be in line with ev_default_fork */
2014} 2073}
2015 2074
2016/*****************************************************************************/ 2075/*****************************************************************************/
2017 2076
2018void 2077void
… …
3048 { 3107 {
3049 struct inotify_event *ev = (struct inotify_event *)(buf + ofs); 3108 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
3050 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3109 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3051 ofs += sizeof (struct inotify_event) + ev->len; 3110 ofs += sizeof (struct inotify_event) + ev->len;
3052 } 3111 }
3053}
3054
3055inline_size unsigned int
3056ev_linux_version (void)
3057{
3058 struct utsname buf;
3059 unsigned int v;
3060 int i;
3061 char *p = buf.release;
3062
3063 if (uname (&buf))
3064 return 0;
3065
3066 for (i = 3+1; --i; )
3067 {
3068 unsigned int c = 0;
3069
3070 for (;;)
3071 {
3072 if (*p >= '0' && *p <= '9')
3073 c = c * 10 + *p++ - '0';
3074 else
3075 {
3076 p += *p == '.';
3077 break;
3078 }
3079 }
3080
3081 v = (v << 8) | c;
3082 }
3083
3084 return v;
3085} 3112}
3086 3113
3087inline_size void 3114inline_size void
3088ev_check_2625 (EV_P) 3115ev_check_2625 (EV_P)
3089{ 3116{
… …
3556 3583
3557 EV_FREQUENT_CHECK; 3584 EV_FREQUENT_CHECK;
3558} 3585}
3559#endif 3586#endif
3560 3587
3588#if EV_CLEANUP_ENABLE
3589void
3590ev_cleanup_start (EV_P_ ev_cleanup *w)
3591{
3592 if (expect_false (ev_is_active (w)))
3593 return;
3594
3595 EV_FREQUENT_CHECK;
3596
3597 ev_start (EV_A_ (W)w, ++cleanupcnt);
3598 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3599 cleanups [cleanupcnt - 1] = w;
3600
3601 /* cleanup watchers should never keep a refcount on the loop */
3602 ev_unref (EV_A);
3603 EV_FREQUENT_CHECK;
3604}
3605
3606void
3607ev_cleanup_stop (EV_P_ ev_cleanup *w)
3608{
3609 clear_pending (EV_A_ (W)w);
3610 if (expect_false (!ev_is_active (w)))
3611 return;
3612
3613 EV_FREQUENT_CHECK;
3614 ev_ref (EV_A);
3615
3616 {
3617 int active = ev_active (w);
3618
3619 cleanups [active - 1] = cleanups [--cleanupcnt];
3620 ev_active (cleanups [active - 1]) = active;
3621 }
3622
3623 ev_stop (EV_A_ (W)w);
3624
3625 EV_FREQUENT_CHECK;
3626}
3627#endif
3628
3561#if EV_ASYNC_ENABLE 3629#if EV_ASYNC_ENABLE
3562void 3630void
3563ev_async_start (EV_P_ ev_async *w) 3631ev_async_start (EV_P_ ev_async *w)
3564{ 3632{
3565 if (expect_false (ev_is_active (w))) 3633 if (expect_false (ev_is_active (w)))

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