ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libev/ev.c
(Generate patch)

Comparing libev/ev.c (file contents):
Revision 1.335 by root, Tue Mar 9 09:02:03 2010 UTC vs.
Revision 1.336 by root, Wed Mar 10 08:19:38 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
… …
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
… …
1923 1930
1924 assert (checkmax >= checkcnt); 1931 assert (checkmax >= checkcnt);
1925 array_verify (EV_A_ (W *)checks, checkcnt); 1932 array_verify (EV_A_ (W *)checks, checkcnt);
1926 1933
1927# if 0 1934# if 0
1935#if EV_CHILD_ENABLE
1928 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1936 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) 1937 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1938#endif
1930# endif 1939# endif
1931#endif 1940#endif
1932} 1941}
1933#endif 1942#endif
1934 1943
… …
1950 1959
1951 loop_init (EV_A_ flags); 1960 loop_init (EV_A_ flags);
1952 1961
1953 if (ev_backend (EV_A)) 1962 if (ev_backend (EV_A))
1954 { 1963 {
1955#ifndef _WIN32 1964#if EV_CHILD_ENABLE
1956 ev_signal_init (&childev, childcb, SIGCHLD); 1965 ev_signal_init (&childev, childcb, SIGCHLD);
1957 ev_set_priority (&childev, EV_MAXPRI); 1966 ev_set_priority (&childev, EV_MAXPRI);
1958 ev_signal_start (EV_A_ &childev); 1967 ev_signal_start (EV_A_ &childev);
1959 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1968 ev_unref (EV_A); /* child watcher should not keep loop alive */
1960#endif 1969#endif
… …
1973 EV_P = ev_default_loop_ptr; 1982 EV_P = ev_default_loop_ptr;
1974#endif 1983#endif
1975 1984
1976 ev_default_loop_ptr = 0; 1985 ev_default_loop_ptr = 0;
1977 1986
1978#ifndef _WIN32 1987#if EV_CHILD_ENABLE
1979 ev_ref (EV_A); /* child watcher */ 1988 ev_ref (EV_A); /* child watcher */
1980 ev_signal_stop (EV_A_ &childev); 1989 ev_signal_stop (EV_A_ &childev);
1981#endif 1990#endif
1982 1991
1983 loop_destroy (EV_A); 1992 loop_destroy (EV_A);
… …
2725 2734
2726#ifndef SA_RESTART 2735#ifndef SA_RESTART
2727# define SA_RESTART 0 2736# define SA_RESTART 0
2728#endif 2737#endif
2729 2738
2739#if EV_SIGNAL_ENABLE
2740
2730void noinline 2741void noinline
2731ev_signal_start (EV_P_ ev_signal *w) 2742ev_signal_start (EV_P_ ev_signal *w)
2732{ 2743{
2733 if (expect_false (ev_is_active (w))) 2744 if (expect_false (ev_is_active (w)))
2734 return; 2745 return;
… …
2840 } 2851 }
2841 2852
2842 EV_FREQUENT_CHECK; 2853 EV_FREQUENT_CHECK;
2843} 2854}
2844 2855
2856#endif
2857
2858#if EV_CHILD_ENABLE
2859
2845void 2860void
2846ev_child_start (EV_P_ ev_child *w) 2861ev_child_start (EV_P_ ev_child *w)
2847{ 2862{
2848#if EV_MULTIPLICITY 2863#if EV_MULTIPLICITY
2849 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 2864 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); 2886 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
2872 ev_stop (EV_A_ (W)w); 2887 ev_stop (EV_A_ (W)w);
2873 2888
2874 EV_FREQUENT_CHECK; 2889 EV_FREQUENT_CHECK;
2875} 2890}
2891
2892#endif
2876 2893
2877#if EV_STAT_ENABLE 2894#if EV_STAT_ENABLE
2878 2895
2879# ifdef _WIN32 2896# ifdef _WIN32
2880# undef lstat 2897# undef lstat

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines