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Comparing libev/ev.c (file contents):
Revision 1.335 by root, Tue Mar 9 09:02:03 2010 UTC vs.
Revision 1.337 by root, Wed Mar 10 09:18:24 2010 UTC

… …
207#elif defined (MAXSIG) 207#elif defined (MAXSIG)
208# define EV_NSIG (MAXSIG+1) 208# define EV_NSIG (MAXSIG+1)
209#elif defined (MAX_SIG) 209#elif defined (MAX_SIG)
210# define EV_NSIG (MAX_SIG+1) 210# define EV_NSIG (MAX_SIG+1)
211#elif defined (SIGARRAYSIZE) 211#elif defined (SIGARRAYSIZE)
212# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 212# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
213#elif defined (_sys_nsig) 213#elif defined (_sys_nsig)
214# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 214# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
215#else 215#else
216# error "unable to find value for NSIG, please report" 216# error "unable to find value for NSIG, please report"
217/* to make it compile regardless, just remove the above line */ 217/* to make it compile regardless, just remove the above line, */
218/* but consider reporting it, too! :) */
218# define EV_NSIG 65 219# define EV_NSIG 65
219#endif 220#endif
220 221
221#ifndef EV_USE_CLOCK_SYSCALL 222#ifndef EV_USE_CLOCK_SYSCALL
222# if __linux && __GLIBC__ >= 2 223# if __linux && __GLIBC__ >= 2
… …
890} 891}
891 892
892/*****************************************************************************/ 893/*****************************************************************************/
893 894
894inline_speed void 895inline_speed void
895fd_event_nc (EV_P_ int fd, int revents) 896fd_event_nocheck (EV_P_ int fd, int revents)
896{ 897{
897 ANFD *anfd = anfds + fd; 898 ANFD *anfd = anfds + fd;
898 ev_io *w; 899 ev_io *w;
899 900
900 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 901 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
912fd_event (EV_P_ int fd, int revents) 913fd_event (EV_P_ int fd, int revents)
913{ 914{
914 ANFD *anfd = anfds + fd; 915 ANFD *anfd = anfds + fd;
915 916
916 if (expect_true (!anfd->reify)) 917 if (expect_true (!anfd->reify))
917 fd_event_nc (EV_A_ fd, revents); 918 fd_event_nocheck (EV_A_ fd, revents);
918} 919}
919 920
920void 921void
921ev_feed_fd_event (EV_P_ int fd, int revents) 922ev_feed_fd_event (EV_P_ int fd, int revents)
922{ 923{
923 if (fd >= 0 && fd < anfdmax) 924 if (fd >= 0 && fd < anfdmax)
924 fd_event_nc (EV_A_ fd, revents); 925 fd_event_nocheck (EV_A_ fd, revents);
925} 926}
926 927
927/* make sure the external fd watch events are in-sync */ 928/* make sure the external fd watch events are in-sync */
928/* with the kernel/libev internal state */ 929/* with the kernel/libev internal state */
929inline_size void 930inline_size void
… …
992 ev_io_stop (EV_A_ w); 993 ev_io_stop (EV_A_ w);
993 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 994 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
994 } 995 }
995} 996}
996 997
997/* check whether the given fd is atcually valid, for error recovery */ 998/* check whether the given fd is actually valid, for error recovery */
998inline_size int 999inline_size int
999fd_valid (int fd) 1000fd_valid (int fd)
1000{ 1001{
1001#ifdef _WIN32 1002#ifdef _WIN32
1002 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1003 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
… …
1042 { 1043 {
1043 anfds [fd].events = 0; 1044 anfds [fd].events = 0;
1044 anfds [fd].emask = 0; 1045 anfds [fd].emask = 0;
1045 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1046 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1046 } 1047 }
1048}
1049
1050/* used to prepare libev internal fd's */
1051/* this is not fork-safe */
1052inline_speed void
1053fd_intern (int fd)
1054{
1055#ifdef _WIN32
1056 unsigned long arg = 1;
1057 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1058#else
1059 fcntl (fd, F_SETFD, FD_CLOEXEC);
1060 fcntl (fd, F_SETFL, O_NONBLOCK);
1061#endif
1047} 1062}
1048 1063
1049/*****************************************************************************/ 1064/*****************************************************************************/
1050 1065
1051/* 1066/*
… …
1205 1220
1206static ANSIG signals [EV_NSIG - 1]; 1221static ANSIG signals [EV_NSIG - 1];
1207 1222
1208/*****************************************************************************/ 1223/*****************************************************************************/
1209 1224
1210/* used to prepare libev internal fd's */ 1225#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1211/* this is not fork-safe */
1212inline_speed void
1213fd_intern (int fd)
1214{
1215#ifdef _WIN32
1216 unsigned long arg = 1;
1217 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1218#else
1219 fcntl (fd, F_SETFD, FD_CLOEXEC);
1220 fcntl (fd, F_SETFL, O_NONBLOCK);
1221#endif
1222}
1223 1226
1224static void noinline 1227static void noinline
1225evpipe_init (EV_P) 1228evpipe_init (EV_P)
1226{ 1229{
1227 if (!ev_is_active (&pipe_w)) 1230 if (!ev_is_active (&pipe_w))
1228 { 1231 {
1229#if EV_USE_EVENTFD 1232# if EV_USE_EVENTFD
1230 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1233 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1231 if (evfd < 0 && errno == EINVAL) 1234 if (evfd < 0 && errno == EINVAL)
1232 evfd = eventfd (0, 0); 1235 evfd = eventfd (0, 0);
1233 1236
1234 if (evfd >= 0) 1237 if (evfd >= 0)
… …
1236 evpipe [0] = -1; 1239 evpipe [0] = -1;
1237 fd_intern (evfd); /* doing it twice doesn't hurt */ 1240 fd_intern (evfd); /* doing it twice doesn't hurt */
1238 ev_io_set (&pipe_w, evfd, EV_READ); 1241 ev_io_set (&pipe_w, evfd, EV_READ);
1239 } 1242 }
1240 else 1243 else
1241#endif 1244# endif
1242 { 1245 {
1243 while (pipe (evpipe)) 1246 while (pipe (evpipe))
1244 ev_syserr ("(libev) error creating signal/async pipe"); 1247 ev_syserr ("(libev) error creating signal/async pipe");
1245 1248
1246 fd_intern (evpipe [0]); 1249 fd_intern (evpipe [0]);
… …
1257evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1260evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1258{ 1261{
1259 if (!*flag) 1262 if (!*flag)
1260 { 1263 {
1261 int old_errno = errno; /* save errno because write might clobber it */ 1264 int old_errno = errno; /* save errno because write might clobber it */
1265 char dummy;
1262 1266
1263 *flag = 1; 1267 *flag = 1;
1264 1268
1265#if EV_USE_EVENTFD 1269#if EV_USE_EVENTFD
1266 if (evfd >= 0) 1270 if (evfd >= 0)
… …
1268 uint64_t counter = 1; 1272 uint64_t counter = 1;
1269 write (evfd, &counter, sizeof (uint64_t)); 1273 write (evfd, &counter, sizeof (uint64_t));
1270 } 1274 }
1271 else 1275 else
1272#endif 1276#endif
1273 write (evpipe [1], &old_errno, 1); 1277 write (evpipe [1], &dummy, 1);
1274 1278
1275 errno = old_errno; 1279 errno = old_errno;
1276 } 1280 }
1277} 1281}
1278 1282
… …
1379 break; 1383 break;
1380 } 1384 }
1381} 1385}
1382#endif 1386#endif
1383 1387
1388#endif
1389
1384/*****************************************************************************/ 1390/*****************************************************************************/
1385 1391
1392#if EV_CHILD_ENABLE
1386static WL childs [EV_PID_HASHSIZE]; 1393static WL childs [EV_PID_HASHSIZE];
1387
1388#ifndef _WIN32
1389 1394
1390static ev_signal childev; 1395static ev_signal childev;
1391 1396
1392#ifndef WIFCONTINUED 1397#ifndef WIFCONTINUED
1393# define WIFCONTINUED(status) 0 1398# define WIFCONTINUED(status) 0
… …
1662 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1667 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1663#endif 1668#endif
1664 1669
1665 ev_prepare_init (&pending_w, pendingcb); 1670 ev_prepare_init (&pending_w, pendingcb);
1666 1671
1672#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1667 ev_init (&pipe_w, pipecb); 1673 ev_init (&pipe_w, pipecb);
1668 ev_set_priority (&pipe_w, EV_MAXPRI); 1674 ev_set_priority (&pipe_w, EV_MAXPRI);
1675#endif
1669 } 1676 }
1670} 1677}
1671 1678
1672/* free up a loop structure */ 1679/* free up a loop structure */
1673static void noinline 1680static void noinline
… …
1791 { 1798 {
1792 EV_WIN32_CLOSE_FD (evpipe [0]); 1799 EV_WIN32_CLOSE_FD (evpipe [0]);
1793 EV_WIN32_CLOSE_FD (evpipe [1]); 1800 EV_WIN32_CLOSE_FD (evpipe [1]);
1794 } 1801 }
1795 1802
1803#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1796 evpipe_init (EV_A); 1804 evpipe_init (EV_A);
1797 /* now iterate over everything, in case we missed something */ 1805 /* now iterate over everything, in case we missed something */
1798 pipecb (EV_A_ &pipe_w, EV_READ); 1806 pipecb (EV_A_ &pipe_w, EV_READ);
1807#endif
1799 } 1808 }
1800 1809
1801 postfork = 0; 1810 postfork = 0;
1802} 1811}
1803 1812
… …
1916#if EV_ASYNC_ENABLE 1925#if EV_ASYNC_ENABLE
1917 assert (asyncmax >= asynccnt); 1926 assert (asyncmax >= asynccnt);
1918 array_verify (EV_A_ (W *)asyncs, asynccnt); 1927 array_verify (EV_A_ (W *)asyncs, asynccnt);
1919#endif 1928#endif
1920 1929
1930#if EV_PREPARE_ENABLE
1921 assert (preparemax >= preparecnt); 1931 assert (preparemax >= preparecnt);
1922 array_verify (EV_A_ (W *)prepares, preparecnt); 1932 array_verify (EV_A_ (W *)prepares, preparecnt);
1933#endif
1923 1934
1935#if EV_CHECK_ENABLE
1924 assert (checkmax >= checkcnt); 1936 assert (checkmax >= checkcnt);
1925 array_verify (EV_A_ (W *)checks, checkcnt); 1937 array_verify (EV_A_ (W *)checks, checkcnt);
1938#endif
1926 1939
1927# if 0 1940# if 0
1941#if EV_CHILD_ENABLE
1928 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1942 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1929 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 1943 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1944#endif
1930# endif 1945# endif
1931#endif 1946#endif
1932} 1947}
1933#endif 1948#endif
1934 1949
… …
1950 1965
1951 loop_init (EV_A_ flags); 1966 loop_init (EV_A_ flags);
1952 1967
1953 if (ev_backend (EV_A)) 1968 if (ev_backend (EV_A))
1954 { 1969 {
1955#ifndef _WIN32 1970#if EV_CHILD_ENABLE
1956 ev_signal_init (&childev, childcb, SIGCHLD); 1971 ev_signal_init (&childev, childcb, SIGCHLD);
1957 ev_set_priority (&childev, EV_MAXPRI); 1972 ev_set_priority (&childev, EV_MAXPRI);
1958 ev_signal_start (EV_A_ &childev); 1973 ev_signal_start (EV_A_ &childev);
1959 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1974 ev_unref (EV_A); /* child watcher should not keep loop alive */
1960#endif 1975#endif
… …
1973 EV_P = ev_default_loop_ptr; 1988 EV_P = ev_default_loop_ptr;
1974#endif 1989#endif
1975 1990
1976 ev_default_loop_ptr = 0; 1991 ev_default_loop_ptr = 0;
1977 1992
1978#ifndef _WIN32 1993#if EV_CHILD_ENABLE
1979 ev_ref (EV_A); /* child watcher */ 1994 ev_ref (EV_A); /* child watcher */
1980 ev_signal_stop (EV_A_ &childev); 1995 ev_signal_stop (EV_A_ &childev);
1981#endif 1996#endif
1982 1997
1983 loop_destroy (EV_A); 1998 loop_destroy (EV_A);
… …
2295 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2310 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2296 EV_INVOKE_PENDING; 2311 EV_INVOKE_PENDING;
2297 } 2312 }
2298#endif 2313#endif
2299 2314
2315#if EV_PREPARE_ENABLE
2300 /* queue prepare watchers (and execute them) */ 2316 /* queue prepare watchers (and execute them) */
2301 if (expect_false (preparecnt)) 2317 if (expect_false (preparecnt))
2302 { 2318 {
2303 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2319 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2304 EV_INVOKE_PENDING; 2320 EV_INVOKE_PENDING;
2305 } 2321 }
2322#endif
2306 2323
2307 if (expect_false (loop_done)) 2324 if (expect_false (loop_done))
2308 break; 2325 break;
2309 2326
2310 /* we might have forked, so reify kernel state if necessary */ 2327 /* we might have forked, so reify kernel state if necessary */
… …
2383#if EV_IDLE_ENABLE 2400#if EV_IDLE_ENABLE
2384 /* queue idle watchers unless other events are pending */ 2401 /* queue idle watchers unless other events are pending */
2385 idle_reify (EV_A); 2402 idle_reify (EV_A);
2386#endif 2403#endif
2387 2404
2405#if EV_CHECK_ENABLE
2388 /* queue check watchers, to be executed first */ 2406 /* queue check watchers, to be executed first */
2389 if (expect_false (checkcnt)) 2407 if (expect_false (checkcnt))
2390 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2408 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2409#endif
2391 2410
2392 EV_INVOKE_PENDING; 2411 EV_INVOKE_PENDING;
2393 } 2412 }
2394 while (expect_true ( 2413 while (expect_true (
2395 activecnt 2414 activecnt
… …
2725 2744
2726#ifndef SA_RESTART 2745#ifndef SA_RESTART
2727# define SA_RESTART 0 2746# define SA_RESTART 0
2728#endif 2747#endif
2729 2748
2749#if EV_SIGNAL_ENABLE
2750
2730void noinline 2751void noinline
2731ev_signal_start (EV_P_ ev_signal *w) 2752ev_signal_start (EV_P_ ev_signal *w)
2732{ 2753{
2733 if (expect_false (ev_is_active (w))) 2754 if (expect_false (ev_is_active (w)))
2734 return; 2755 return;
… …
2840 } 2861 }
2841 2862
2842 EV_FREQUENT_CHECK; 2863 EV_FREQUENT_CHECK;
2843} 2864}
2844 2865
2866#endif
2867
2868#if EV_CHILD_ENABLE
2869
2845void 2870void
2846ev_child_start (EV_P_ ev_child *w) 2871ev_child_start (EV_P_ ev_child *w)
2847{ 2872{
2848#if EV_MULTIPLICITY 2873#if EV_MULTIPLICITY
2849 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 2874 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
… …
2871 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2896 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2872 ev_stop (EV_A_ (W)w); 2897 ev_stop (EV_A_ (W)w);
2873 2898
2874 EV_FREQUENT_CHECK; 2899 EV_FREQUENT_CHECK;
2875} 2900}
2901
2902#endif
2876 2903
2877#if EV_STAT_ENABLE 2904#if EV_STAT_ENABLE
2878 2905
2879# ifdef _WIN32 2906# ifdef _WIN32
2880# undef lstat 2907# undef lstat
… …
3301 3328
3302 EV_FREQUENT_CHECK; 3329 EV_FREQUENT_CHECK;
3303} 3330}
3304#endif 3331#endif
3305 3332
3333#if EV_PREPARE_ENABLE
3306void 3334void
3307ev_prepare_start (EV_P_ ev_prepare *w) 3335ev_prepare_start (EV_P_ ev_prepare *w)
3308{ 3336{
3309 if (expect_false (ev_is_active (w))) 3337 if (expect_false (ev_is_active (w)))
3310 return; 3338 return;
… …
3336 3364
3337 ev_stop (EV_A_ (W)w); 3365 ev_stop (EV_A_ (W)w);
3338 3366
3339 EV_FREQUENT_CHECK; 3367 EV_FREQUENT_CHECK;
3340} 3368}
3369#endif
3341 3370
3371#if EV_CHECK_ENABLE
3342void 3372void
3343ev_check_start (EV_P_ ev_check *w) 3373ev_check_start (EV_P_ ev_check *w)
3344{ 3374{
3345 if (expect_false (ev_is_active (w))) 3375 if (expect_false (ev_is_active (w)))
3346 return; 3376 return;
… …
3372 3402
3373 ev_stop (EV_A_ (W)w); 3403 ev_stop (EV_A_ (W)w);
3374 3404
3375 EV_FREQUENT_CHECK; 3405 EV_FREQUENT_CHECK;
3376} 3406}
3407#endif
3377 3408
3378#if EV_EMBED_ENABLE 3409#if EV_EMBED_ENABLE
3379void noinline 3410void noinline
3380ev_embed_sweep (EV_P_ ev_embed *w) 3411ev_embed_sweep (EV_P_ ev_embed *w)
3381{ 3412{
… …
3710 if (types & EV_ASYNC) 3741 if (types & EV_ASYNC)
3711 for (i = asynccnt; i--; ) 3742 for (i = asynccnt; i--; )
3712 cb (EV_A_ EV_ASYNC, asyncs [i]); 3743 cb (EV_A_ EV_ASYNC, asyncs [i]);
3713#endif 3744#endif
3714 3745
3746#if EV_PREPARE_ENABLE
3715 if (types & EV_PREPARE) 3747 if (types & EV_PREPARE)
3716 for (i = preparecnt; i--; ) 3748 for (i = preparecnt; i--; )
3717#if EV_EMBED_ENABLE 3749# if EV_EMBED_ENABLE
3718 if (ev_cb (prepares [i]) != embed_prepare_cb) 3750 if (ev_cb (prepares [i]) != embed_prepare_cb)
3719#endif 3751# endif
3720 cb (EV_A_ EV_PREPARE, prepares [i]); 3752 cb (EV_A_ EV_PREPARE, prepares [i]);
3753#endif
3721 3754
3755#if EV_CHECK_ENABLE
3722 if (types & EV_CHECK) 3756 if (types & EV_CHECK)
3723 for (i = checkcnt; i--; ) 3757 for (i = checkcnt; i--; )
3724 cb (EV_A_ EV_CHECK, checks [i]); 3758 cb (EV_A_ EV_CHECK, checks [i]);
3759#endif
3725 3760
3761#if EV_SIGNAL_ENABLE
3726 if (types & EV_SIGNAL) 3762 if (types & EV_SIGNAL)
3727 for (i = 0; i < EV_NSIG - 1; ++i) 3763 for (i = 0; i < EV_NSIG - 1; ++i)
3728 for (wl = signals [i].head; wl; ) 3764 for (wl = signals [i].head; wl; )
3729 { 3765 {
3730 wn = wl->next; 3766 wn = wl->next;
3731 cb (EV_A_ EV_SIGNAL, wl); 3767 cb (EV_A_ EV_SIGNAL, wl);
3732 wl = wn; 3768 wl = wn;
3733 } 3769 }
3770#endif
3734 3771
3772#if EV_CHILD_ENABLE
3735 if (types & EV_CHILD) 3773 if (types & EV_CHILD)
3736 for (i = EV_PID_HASHSIZE; i--; ) 3774 for (i = EV_PID_HASHSIZE; i--; )
3737 for (wl = childs [i]; wl; ) 3775 for (wl = childs [i]; wl; )
3738 { 3776 {
3739 wn = wl->next; 3777 wn = wl->next;
3740 cb (EV_A_ EV_CHILD, wl); 3778 cb (EV_A_ EV_CHILD, wl);
3741 wl = wn; 3779 wl = wn;
3742 } 3780 }
3781#endif
3743/* EV_STAT 0x00001000 /* stat data changed */ 3782/* EV_STAT 0x00001000 /* stat data changed */
3744/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 3783/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3745} 3784}
3746#endif 3785#endif
3747 3786

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