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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 1.364 by root, Sun Oct 24 21:51:03 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));
… …
627 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 668 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
628 unsigned char unused; 669 unsigned char unused;
629#if EV_USE_EPOLL 670#if EV_USE_EPOLL
630 unsigned int egen; /* generation counter to counter epoll bugs */ 671 unsigned int egen; /* generation counter to counter epoll bugs */
631#endif 672#endif
632#if EV_SELECT_IS_WINSOCKET 673#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
633 SOCKET handle; 674 SOCKET handle;
675#endif
676#if EV_USE_IOCP
677 OVERLAPPED or, ow;
634#endif 678#endif
635} ANFD; 679} ANFD;
636 680
637/* stores the pending event set for a given watcher */ 681/* stores the pending event set for a given watcher */
638typedef struct 682typedef struct
… …
934 unsigned char o_events = anfd->events; 978 unsigned char o_events = anfd->events;
935 unsigned char o_reify = anfd->reify; 979 unsigned char o_reify = anfd->reify;
936 980
937 anfd->reify = 0; 981 anfd->reify = 0;
938 982
939#if EV_SELECT_IS_WINSOCKET 983#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
940 if (o_reify & EV__IOFDSET) 984 if (o_reify & EV__IOFDSET)
941 { 985 {
942 unsigned long arg; 986 unsigned long arg;
943 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 987 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
944 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 988 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
989 printf ("oi %d %x\n", fd, anfd->handle);//D
945 } 990 }
946#endif 991#endif
947 992
948 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 993 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
949 { 994 {
… …
1448 1493
1449#endif 1494#endif
1450 1495
1451/*****************************************************************************/ 1496/*****************************************************************************/
1452 1497
1498#if EV_USE_IOCP
1499# include "ev_iocp.c"
1500#endif
1453#if EV_USE_PORT 1501#if EV_USE_PORT
1454# include "ev_port.c" 1502# include "ev_port.c"
1455#endif 1503#endif
1456#if EV_USE_KQUEUE 1504#if EV_USE_KQUEUE
1457# include "ev_kqueue.c" 1505# include "ev_kqueue.c"
… …
1530ev_embeddable_backends (void) 1578ev_embeddable_backends (void)
1531{ 1579{
1532 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1580 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1533 1581
1534 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1582 /* 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 */ 1583 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1536 flags &= ~EVBACKEND_EPOLL; 1584 flags &= ~EVBACKEND_EPOLL;
1537 1585
1538 return flags; 1586 return flags;
1539} 1587}
1540 1588
1541unsigned int 1589unsigned int
… …
1654#endif 1702#endif
1655 1703
1656 if (!(flags & 0x0000ffffU)) 1704 if (!(flags & 0x0000ffffU))
1657 flags |= ev_recommended_backends (); 1705 flags |= ev_recommended_backends ();
1658 1706
1707#if EV_USE_IOCP
1708 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1709#endif
1659#if EV_USE_PORT 1710#if EV_USE_PORT
1660 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1711 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1661#endif 1712#endif
1662#if EV_USE_KQUEUE 1713#if EV_USE_KQUEUE
1663 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1714 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1680#endif 1731#endif
1681 } 1732 }
1682} 1733}
1683 1734
1684/* free up a loop structure */ 1735/* free up a loop structure */
1685static void noinline 1736void
1686loop_destroy (EV_P) 1737ev_loop_destroy (EV_P)
1687{ 1738{
1688 int i; 1739 int i;
1740
1741#if EV_MULTIPLICITY
1742 /* mimic free (0) */
1743 if (!EV_A)
1744 return;
1745#endif
1746
1747#if EV_CLEANUP_ENABLE
1748 /* queue cleanup watchers (and execute them) */
1749 if (expect_false (cleanupcnt))
1750 {
1751 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1752 EV_INVOKE_PENDING;
1753 }
1754#endif
1755
1756#if EV_CHILD_ENABLE
1757 if (ev_is_active (&childev))
1758 {
1759 ev_ref (EV_A); /* child watcher */
1760 ev_signal_stop (EV_A_ &childev);
1761 }
1762#endif
1689 1763
1690 if (ev_is_active (&pipe_w)) 1764 if (ev_is_active (&pipe_w))
1691 { 1765 {
1692 /*ev_ref (EV_A);*/ 1766 /*ev_ref (EV_A);*/
1693 /*ev_io_stop (EV_A_ &pipe_w);*/ 1767 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1715#endif 1789#endif
1716 1790
1717 if (backend_fd >= 0) 1791 if (backend_fd >= 0)
1718 close (backend_fd); 1792 close (backend_fd);
1719 1793
1794#if EV_USE_IOCP
1795 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1796#endif
1720#if EV_USE_PORT 1797#if EV_USE_PORT
1721 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1798 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1722#endif 1799#endif
1723#if EV_USE_KQUEUE 1800#if EV_USE_KQUEUE
1724 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 1801 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1751 array_free (periodic, EMPTY); 1828 array_free (periodic, EMPTY);
1752#endif 1829#endif
1753#if EV_FORK_ENABLE 1830#if EV_FORK_ENABLE
1754 array_free (fork, EMPTY); 1831 array_free (fork, EMPTY);
1755#endif 1832#endif
1833#if EV_CLEANUP_ENABLE
1834 array_free (cleanup, EMPTY);
1835#endif
1756 array_free (prepare, EMPTY); 1836 array_free (prepare, EMPTY);
1757 array_free (check, EMPTY); 1837 array_free (check, EMPTY);
1758#if EV_ASYNC_ENABLE 1838#if EV_ASYNC_ENABLE
1759 array_free (async, EMPTY); 1839 array_free (async, EMPTY);
1760#endif 1840#endif
1761 1841
1762 backend = 0; 1842 backend = 0;
1843
1844#if EV_MULTIPLICITY
1845 if (ev_is_default_loop (EV_A))
1846#endif
1847 ev_default_loop_ptr = 0;
1848#if EV_MULTIPLICITY
1849 else
1850 ev_free (EV_A);
1851#endif
1763} 1852}
1764 1853
1765#if EV_USE_INOTIFY 1854#if EV_USE_INOTIFY
1766inline_size void infy_fork (EV_P); 1855inline_size void infy_fork (EV_P);
1767#endif 1856#endif
… …
1826 loop_init (EV_A_ flags); 1915 loop_init (EV_A_ flags);
1827 1916
1828 if (ev_backend (EV_A)) 1917 if (ev_backend (EV_A))
1829 return EV_A; 1918 return EV_A;
1830 1919
1920 ev_free (EV_A);
1831 return 0; 1921 return 0;
1832} 1922}
1833 1923
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 */ 1924#endif /* multiplicity */
1847 1925
1848#if EV_VERIFY 1926#if EV_VERIFY
1849static void noinline 1927static void noinline
1850verify_watcher (EV_P_ W w) 1928verify_watcher (EV_P_ W w)
… …
1925#if EV_FORK_ENABLE 2003#if EV_FORK_ENABLE
1926 assert (forkmax >= forkcnt); 2004 assert (forkmax >= forkcnt);
1927 array_verify (EV_A_ (W *)forks, forkcnt); 2005 array_verify (EV_A_ (W *)forks, forkcnt);
1928#endif 2006#endif
1929 2007
2008#if EV_CLEANUP_ENABLE
2009 assert (cleanupmax >= cleanupcnt);
2010 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2011#endif
2012
1930#if EV_ASYNC_ENABLE 2013#if EV_ASYNC_ENABLE
1931 assert (asyncmax >= asynccnt); 2014 assert (asyncmax >= asynccnt);
1932 array_verify (EV_A_ (W *)asyncs, asynccnt); 2015 array_verify (EV_A_ (W *)asyncs, asynccnt);
1933#endif 2016#endif
1934 2017
… …
1952} 2035}
1953#endif 2036#endif
1954 2037
1955#if EV_MULTIPLICITY 2038#if EV_MULTIPLICITY
1956struct ev_loop * 2039struct ev_loop *
1957ev_default_loop_init (unsigned int flags)
1958#else 2040#else
1959int 2041int
2042#endif
1960ev_default_loop (unsigned int flags) 2043ev_default_loop (unsigned int flags)
1961#endif
1962{ 2044{
1963 if (!ev_default_loop_ptr) 2045 if (!ev_default_loop_ptr)
1964 { 2046 {
1965#if EV_MULTIPLICITY 2047#if EV_MULTIPLICITY
1966 EV_P = ev_default_loop_ptr = &default_loop_struct; 2048 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1985 2067
1986 return ev_default_loop_ptr; 2068 return ev_default_loop_ptr;
1987} 2069}
1988 2070
1989void 2071void
1990ev_default_destroy (void) 2072ev_loop_fork (EV_P)
1991{ 2073{
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 */ 2074 postfork = 1; /* must be in line with ev_default_fork */
2014} 2075}
2015 2076
2016/*****************************************************************************/ 2077/*****************************************************************************/
2017 2078
2018void 2079void
… …
3048 { 3109 {
3049 struct inotify_event *ev = (struct inotify_event *)(buf + ofs); 3110 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
3050 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3111 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3051 ofs += sizeof (struct inotify_event) + ev->len; 3112 ofs += sizeof (struct inotify_event) + ev->len;
3052 } 3113 }
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} 3114}
3086 3115
3087inline_size void 3116inline_size void
3088ev_check_2625 (EV_P) 3117ev_check_2625 (EV_P)
3089{ 3118{
… …
3556 3585
3557 EV_FREQUENT_CHECK; 3586 EV_FREQUENT_CHECK;
3558} 3587}
3559#endif 3588#endif
3560 3589
3590#if EV_CLEANUP_ENABLE
3591void
3592ev_cleanup_start (EV_P_ ev_cleanup *w)
3593{
3594 if (expect_false (ev_is_active (w)))
3595 return;
3596
3597 EV_FREQUENT_CHECK;
3598
3599 ev_start (EV_A_ (W)w, ++cleanupcnt);
3600 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3601 cleanups [cleanupcnt - 1] = w;
3602
3603 /* cleanup watchers should never keep a refcount on the loop */
3604 ev_unref (EV_A);
3605 EV_FREQUENT_CHECK;
3606}
3607
3608void
3609ev_cleanup_stop (EV_P_ ev_cleanup *w)
3610{
3611 clear_pending (EV_A_ (W)w);
3612 if (expect_false (!ev_is_active (w)))
3613 return;
3614
3615 EV_FREQUENT_CHECK;
3616 ev_ref (EV_A);
3617
3618 {
3619 int active = ev_active (w);
3620
3621 cleanups [active - 1] = cleanups [--cleanupcnt];
3622 ev_active (cleanups [active - 1]) = active;
3623 }
3624
3625 ev_stop (EV_A_ (W)w);
3626
3627 EV_FREQUENT_CHECK;
3628}
3629#endif
3630
3561#if EV_ASYNC_ENABLE 3631#if EV_ASYNC_ENABLE
3562void 3632void
3563ev_async_start (EV_P_ ev_async *w) 3633ev_async_start (EV_P_ ev_async *w)
3564{ 3634{
3565 if (expect_false (ev_is_active (w))) 3635 if (expect_false (ev_is_active (w)))

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