… | |
… | |
110 | # define EV_USE_EPOLL 0 |
110 | # define EV_USE_EPOLL 0 |
111 | # endif |
111 | # endif |
112 | # endif |
112 | # endif |
113 | |
113 | |
114 | # ifndef EV_USE_KQUEUE |
114 | # ifndef EV_USE_KQUEUE |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
116 | # define EV_USE_KQUEUE 1 |
116 | # define EV_USE_KQUEUE 1 |
117 | # else |
117 | # else |
118 | # define EV_USE_KQUEUE 0 |
118 | # define EV_USE_KQUEUE 0 |
119 | # endif |
119 | # endif |
120 | # endif |
120 | # endif |
… | |
… | |
133 | # else |
133 | # else |
134 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY 0 |
135 | # endif |
135 | # endif |
136 | # endif |
136 | # endif |
137 | |
137 | |
|
|
138 | # ifndef EV_USE_SIGNALFD |
|
|
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
|
|
140 | # define EV_USE_SIGNALFD 1 |
|
|
141 | # else |
|
|
142 | # define EV_USE_SIGNALFD 0 |
|
|
143 | # endif |
|
|
144 | # endif |
|
|
145 | |
138 | # ifndef EV_USE_EVENTFD |
146 | # ifndef EV_USE_EVENTFD |
139 | # if HAVE_EVENTFD |
147 | # if HAVE_EVENTFD |
140 | # define EV_USE_EVENTFD 1 |
148 | # define EV_USE_EVENTFD 1 |
141 | # else |
149 | # else |
142 | # define EV_USE_EVENTFD 0 |
150 | # define EV_USE_EVENTFD 0 |
… | |
… | |
145 | |
153 | |
146 | #endif |
154 | #endif |
147 | |
155 | |
148 | #include <math.h> |
156 | #include <math.h> |
149 | #include <stdlib.h> |
157 | #include <stdlib.h> |
|
|
158 | #include <string.h> |
150 | #include <fcntl.h> |
159 | #include <fcntl.h> |
151 | #include <stddef.h> |
160 | #include <stddef.h> |
152 | |
161 | |
153 | #include <stdio.h> |
162 | #include <stdio.h> |
154 | |
163 | |
… | |
… | |
178 | # endif |
187 | # endif |
179 | #endif |
188 | #endif |
180 | |
189 | |
181 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
190 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
182 | |
191 | |
|
|
192 | /* try to deduce the maximum number of signals on this platform */ |
|
|
193 | #if defined (EV_NSIG) |
|
|
194 | /* use what's provided */ |
|
|
195 | #elif defined (NSIG) |
|
|
196 | # define EV_NSIG (NSIG) |
|
|
197 | #elif defined(_NSIG) |
|
|
198 | # define EV_NSIG (_NSIG) |
|
|
199 | #elif defined (SIGMAX) |
|
|
200 | # define EV_NSIG (SIGMAX+1) |
|
|
201 | #elif defined (SIG_MAX) |
|
|
202 | # define EV_NSIG (SIG_MAX+1) |
|
|
203 | #elif defined (_SIG_MAX) |
|
|
204 | # define EV_NSIG (_SIG_MAX+1) |
|
|
205 | #elif defined (MAXSIG) |
|
|
206 | # define EV_NSIG (MAXSIG+1) |
|
|
207 | #elif defined (MAX_SIG) |
|
|
208 | # define EV_NSIG (MAX_SIG+1) |
|
|
209 | #elif defined (SIGARRAYSIZE) |
|
|
210 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
|
|
211 | #elif defined (_sys_nsig) |
|
|
212 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
213 | #else |
|
|
214 | # error "unable to find value for NSIG, please report" |
|
|
215 | /* to make it compile regardless, just remove the above line */ |
|
|
216 | # define EV_NSIG 65 |
|
|
217 | #endif |
|
|
218 | |
183 | #ifndef EV_USE_CLOCK_SYSCALL |
219 | #ifndef EV_USE_CLOCK_SYSCALL |
184 | # if __linux && __GLIBC__ >= 2 |
220 | # if __linux && __GLIBC__ >= 2 |
185 | # define EV_USE_CLOCK_SYSCALL 1 |
221 | # define EV_USE_CLOCK_SYSCALL 1 |
186 | # else |
222 | # else |
187 | # define EV_USE_CLOCK_SYSCALL 0 |
223 | # define EV_USE_CLOCK_SYSCALL 0 |
… | |
… | |
263 | #ifndef EV_USE_EVENTFD |
299 | #ifndef EV_USE_EVENTFD |
264 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
300 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
265 | # define EV_USE_EVENTFD 1 |
301 | # define EV_USE_EVENTFD 1 |
266 | # else |
302 | # else |
267 | # define EV_USE_EVENTFD 0 |
303 | # define EV_USE_EVENTFD 0 |
|
|
304 | # endif |
|
|
305 | #endif |
|
|
306 | |
|
|
307 | #ifndef EV_USE_SIGNALFD |
|
|
308 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
309 | # define EV_USE_SIGNALFD 1 |
|
|
310 | # else |
|
|
311 | # define EV_USE_SIGNALFD 0 |
268 | # endif |
312 | # endif |
269 | #endif |
313 | #endif |
270 | |
314 | |
271 | #if 0 /* debugging */ |
315 | #if 0 /* debugging */ |
272 | # define EV_VERIFY 3 |
316 | # define EV_VERIFY 3 |
… | |
… | |
339 | #endif |
383 | #endif |
340 | |
384 | |
341 | #if EV_USE_EVENTFD |
385 | #if EV_USE_EVENTFD |
342 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
386 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
343 | # include <stdint.h> |
387 | # include <stdint.h> |
|
|
388 | # ifndef EFD_NONBLOCK |
|
|
389 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
390 | # endif |
|
|
391 | # ifndef EFD_CLOEXEC |
|
|
392 | # ifdef O_CLOEXEC |
|
|
393 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
394 | # else |
|
|
395 | # define EFD_CLOEXEC 02000000 |
|
|
396 | # endif |
|
|
397 | # endif |
344 | # ifdef __cplusplus |
398 | # ifdef __cplusplus |
345 | extern "C" { |
399 | extern "C" { |
346 | # endif |
400 | # endif |
347 | int eventfd (unsigned int initval, int flags); |
401 | int eventfd (unsigned int initval, int flags); |
348 | # ifdef __cplusplus |
402 | # ifdef __cplusplus |
349 | } |
403 | } |
350 | # endif |
404 | # endif |
351 | #endif |
405 | #endif |
|
|
406 | |
|
|
407 | #if EV_USE_SIGNALFD |
|
|
408 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
409 | # include <stdint.h> |
|
|
410 | # ifndef SFD_NONBLOCK |
|
|
411 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
412 | # endif |
|
|
413 | # ifndef SFD_CLOEXEC |
|
|
414 | # ifdef O_CLOEXEC |
|
|
415 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
416 | # else |
|
|
417 | # define SFD_CLOEXEC 02000000 |
|
|
418 | # endif |
|
|
419 | # endif |
|
|
420 | # ifdef __cplusplus |
|
|
421 | extern "C" { |
|
|
422 | # endif |
|
|
423 | int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
424 | |
|
|
425 | struct signalfd_siginfo |
|
|
426 | { |
|
|
427 | uint32_t ssi_signo; |
|
|
428 | char pad[128 - sizeof (uint32_t)]; |
|
|
429 | }; |
|
|
430 | # ifdef __cplusplus |
|
|
431 | } |
|
|
432 | # endif |
|
|
433 | #endif |
|
|
434 | |
352 | |
435 | |
353 | /**/ |
436 | /**/ |
354 | |
437 | |
355 | #if EV_VERIFY >= 3 |
438 | #if EV_VERIFY >= 3 |
356 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
439 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
… | |
… | |
368 | */ |
451 | */ |
369 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
452 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
370 | |
453 | |
371 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
454 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
372 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
455 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
373 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
374 | |
456 | |
375 | #if __GNUC__ >= 4 |
457 | #if __GNUC__ >= 4 |
376 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
458 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
377 | # define noinline __attribute__ ((noinline)) |
459 | # define noinline __attribute__ ((noinline)) |
378 | #else |
460 | #else |
… | |
… | |
417 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
499 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
418 | #endif |
500 | #endif |
419 | |
501 | |
420 | #if EV_USE_MONOTONIC |
502 | #if EV_USE_MONOTONIC |
421 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
503 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
504 | #endif |
|
|
505 | |
|
|
506 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
507 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
508 | #endif |
|
|
509 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
510 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
511 | #endif |
|
|
512 | #ifndef EV_WIN32_CLOSE_FD |
|
|
513 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
422 | #endif |
514 | #endif |
423 | |
515 | |
424 | #ifdef _WIN32 |
516 | #ifdef _WIN32 |
425 | # include "ev_win32.c" |
517 | # include "ev_win32.c" |
426 | #endif |
518 | #endif |
… | |
… | |
819 | |
911 | |
820 | #if EV_SELECT_IS_WINSOCKET |
912 | #if EV_SELECT_IS_WINSOCKET |
821 | if (events) |
913 | if (events) |
822 | { |
914 | { |
823 | unsigned long arg; |
915 | unsigned long arg; |
824 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
825 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
916 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
826 | #else |
|
|
827 | anfd->handle = _get_osfhandle (fd); |
|
|
828 | #endif |
|
|
829 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
917 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
830 | } |
918 | } |
831 | #endif |
919 | #endif |
832 | |
920 | |
833 | { |
921 | { |
… | |
… | |
876 | /* check whether the given fd is atcually valid, for error recovery */ |
964 | /* check whether the given fd is atcually valid, for error recovery */ |
877 | inline_size int |
965 | inline_size int |
878 | fd_valid (int fd) |
966 | fd_valid (int fd) |
879 | { |
967 | { |
880 | #ifdef _WIN32 |
968 | #ifdef _WIN32 |
881 | return _get_osfhandle (fd) != -1; |
969 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
882 | #else |
970 | #else |
883 | return fcntl (fd, F_GETFD) != -1; |
971 | return fcntl (fd, F_GETFD) != -1; |
884 | #endif |
972 | #endif |
885 | } |
973 | } |
886 | |
974 | |
… | |
… | |
904 | |
992 | |
905 | for (fd = anfdmax; fd--; ) |
993 | for (fd = anfdmax; fd--; ) |
906 | if (anfds [fd].events) |
994 | if (anfds [fd].events) |
907 | { |
995 | { |
908 | fd_kill (EV_A_ fd); |
996 | fd_kill (EV_A_ fd); |
909 | return; |
997 | break; |
910 | } |
998 | } |
911 | } |
999 | } |
912 | |
1000 | |
913 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1001 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
914 | static void noinline |
1002 | static void noinline |
… | |
… | |
1004 | |
1092 | |
1005 | for (;;) |
1093 | for (;;) |
1006 | { |
1094 | { |
1007 | int c = k << 1; |
1095 | int c = k << 1; |
1008 | |
1096 | |
1009 | if (c > N + HEAP0 - 1) |
1097 | if (c >= N + HEAP0) |
1010 | break; |
1098 | break; |
1011 | |
1099 | |
1012 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1100 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1013 | ? 1 : 0; |
1101 | ? 1 : 0; |
1014 | |
1102 | |
… | |
… | |
1050 | |
1138 | |
1051 | /* move an element suitably so it is in a correct place */ |
1139 | /* move an element suitably so it is in a correct place */ |
1052 | inline_size void |
1140 | inline_size void |
1053 | adjustheap (ANHE *heap, int N, int k) |
1141 | adjustheap (ANHE *heap, int N, int k) |
1054 | { |
1142 | { |
1055 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1143 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
1056 | upheap (heap, k); |
1144 | upheap (heap, k); |
1057 | else |
1145 | else |
1058 | downheap (heap, N, k); |
1146 | downheap (heap, N, k); |
1059 | } |
1147 | } |
1060 | |
1148 | |
… | |
… | |
1073 | /*****************************************************************************/ |
1161 | /*****************************************************************************/ |
1074 | |
1162 | |
1075 | /* associate signal watchers to a signal signal */ |
1163 | /* associate signal watchers to a signal signal */ |
1076 | typedef struct |
1164 | typedef struct |
1077 | { |
1165 | { |
|
|
1166 | EV_ATOMIC_T pending; |
|
|
1167 | #if EV_MULTIPLICITY |
|
|
1168 | EV_P; |
|
|
1169 | #endif |
1078 | WL head; |
1170 | WL head; |
1079 | EV_ATOMIC_T gotsig; |
|
|
1080 | } ANSIG; |
1171 | } ANSIG; |
1081 | |
1172 | |
1082 | static ANSIG *signals; |
1173 | static ANSIG signals [EV_NSIG - 1]; |
1083 | static int signalmax; |
|
|
1084 | |
|
|
1085 | static EV_ATOMIC_T gotsig; |
|
|
1086 | |
1174 | |
1087 | /*****************************************************************************/ |
1175 | /*****************************************************************************/ |
1088 | |
1176 | |
1089 | /* used to prepare libev internal fd's */ |
1177 | /* used to prepare libev internal fd's */ |
1090 | /* this is not fork-safe */ |
1178 | /* this is not fork-safe */ |
1091 | inline_speed void |
1179 | inline_speed void |
1092 | fd_intern (int fd) |
1180 | fd_intern (int fd) |
1093 | { |
1181 | { |
1094 | #ifdef _WIN32 |
1182 | #ifdef _WIN32 |
1095 | unsigned long arg = 1; |
1183 | unsigned long arg = 1; |
1096 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1184 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
1097 | #else |
1185 | #else |
1098 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1186 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1099 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1187 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1100 | #endif |
1188 | #endif |
1101 | } |
1189 | } |
… | |
… | |
1104 | evpipe_init (EV_P) |
1192 | evpipe_init (EV_P) |
1105 | { |
1193 | { |
1106 | if (!ev_is_active (&pipe_w)) |
1194 | if (!ev_is_active (&pipe_w)) |
1107 | { |
1195 | { |
1108 | #if EV_USE_EVENTFD |
1196 | #if EV_USE_EVENTFD |
|
|
1197 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1198 | if (evfd < 0 && errno == EINVAL) |
1109 | if ((evfd = eventfd (0, 0)) >= 0) |
1199 | evfd = eventfd (0, 0); |
|
|
1200 | |
|
|
1201 | if (evfd >= 0) |
1110 | { |
1202 | { |
1111 | evpipe [0] = -1; |
1203 | evpipe [0] = -1; |
1112 | fd_intern (evfd); |
1204 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1113 | ev_io_set (&pipe_w, evfd, EV_READ); |
1205 | ev_io_set (&pipe_w, evfd, EV_READ); |
1114 | } |
1206 | } |
1115 | else |
1207 | else |
1116 | #endif |
1208 | #endif |
1117 | { |
1209 | { |
… | |
… | |
1154 | /* called whenever the libev signal pipe */ |
1246 | /* called whenever the libev signal pipe */ |
1155 | /* got some events (signal, async) */ |
1247 | /* got some events (signal, async) */ |
1156 | static void |
1248 | static void |
1157 | pipecb (EV_P_ ev_io *iow, int revents) |
1249 | pipecb (EV_P_ ev_io *iow, int revents) |
1158 | { |
1250 | { |
|
|
1251 | int i; |
|
|
1252 | |
1159 | #if EV_USE_EVENTFD |
1253 | #if EV_USE_EVENTFD |
1160 | if (evfd >= 0) |
1254 | if (evfd >= 0) |
1161 | { |
1255 | { |
1162 | uint64_t counter; |
1256 | uint64_t counter; |
1163 | read (evfd, &counter, sizeof (uint64_t)); |
1257 | read (evfd, &counter, sizeof (uint64_t)); |
… | |
… | |
1167 | { |
1261 | { |
1168 | char dummy; |
1262 | char dummy; |
1169 | read (evpipe [0], &dummy, 1); |
1263 | read (evpipe [0], &dummy, 1); |
1170 | } |
1264 | } |
1171 | |
1265 | |
1172 | if (gotsig && ev_is_default_loop (EV_A)) |
1266 | if (sig_pending) |
1173 | { |
1267 | { |
1174 | int signum; |
1268 | sig_pending = 0; |
1175 | gotsig = 0; |
|
|
1176 | |
1269 | |
1177 | for (signum = signalmax; signum--; ) |
1270 | for (i = EV_NSIG - 1; i--; ) |
1178 | if (signals [signum].gotsig) |
1271 | if (expect_false (signals [i].pending)) |
1179 | ev_feed_signal_event (EV_A_ signum + 1); |
1272 | ev_feed_signal_event (EV_A_ i + 1); |
1180 | } |
1273 | } |
1181 | |
1274 | |
1182 | #if EV_ASYNC_ENABLE |
1275 | #if EV_ASYNC_ENABLE |
1183 | if (gotasync) |
1276 | if (async_pending) |
1184 | { |
1277 | { |
1185 | int i; |
1278 | async_pending = 0; |
1186 | gotasync = 0; |
|
|
1187 | |
1279 | |
1188 | for (i = asynccnt; i--; ) |
1280 | for (i = asynccnt; i--; ) |
1189 | if (asyncs [i]->sent) |
1281 | if (asyncs [i]->sent) |
1190 | { |
1282 | { |
1191 | asyncs [i]->sent = 0; |
1283 | asyncs [i]->sent = 0; |
… | |
… | |
1199 | |
1291 | |
1200 | static void |
1292 | static void |
1201 | ev_sighandler (int signum) |
1293 | ev_sighandler (int signum) |
1202 | { |
1294 | { |
1203 | #if EV_MULTIPLICITY |
1295 | #if EV_MULTIPLICITY |
1204 | struct ev_loop *loop = &default_loop_struct; |
1296 | EV_P = signals [signum - 1].loop; |
1205 | #endif |
1297 | #endif |
1206 | |
1298 | |
1207 | #if _WIN32 |
1299 | #ifdef _WIN32 |
1208 | signal (signum, ev_sighandler); |
1300 | signal (signum, ev_sighandler); |
1209 | #endif |
1301 | #endif |
1210 | |
1302 | |
1211 | signals [signum - 1].gotsig = 1; |
1303 | signals [signum - 1].pending = 1; |
1212 | evpipe_write (EV_A_ &gotsig); |
1304 | evpipe_write (EV_A_ &sig_pending); |
1213 | } |
1305 | } |
1214 | |
1306 | |
1215 | void noinline |
1307 | void noinline |
1216 | ev_feed_signal_event (EV_P_ int signum) |
1308 | ev_feed_signal_event (EV_P_ int signum) |
1217 | { |
1309 | { |
1218 | WL w; |
1310 | WL w; |
1219 | |
1311 | |
|
|
1312 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1313 | return; |
|
|
1314 | |
|
|
1315 | --signum; |
|
|
1316 | |
1220 | #if EV_MULTIPLICITY |
1317 | #if EV_MULTIPLICITY |
1221 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1318 | /* it is permissible to try to feed a signal to the wrong loop */ |
1222 | #endif |
1319 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1223 | |
1320 | |
1224 | --signum; |
1321 | if (expect_false (signals [signum].loop != EV_A)) |
1225 | |
|
|
1226 | if (signum < 0 || signum >= signalmax) |
|
|
1227 | return; |
1322 | return; |
|
|
1323 | #endif |
1228 | |
1324 | |
1229 | signals [signum].gotsig = 0; |
1325 | signals [signum].pending = 0; |
1230 | |
1326 | |
1231 | for (w = signals [signum].head; w; w = w->next) |
1327 | for (w = signals [signum].head; w; w = w->next) |
1232 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1328 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1233 | } |
1329 | } |
|
|
1330 | |
|
|
1331 | #if EV_USE_SIGNALFD |
|
|
1332 | static void |
|
|
1333 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1334 | { |
|
|
1335 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1336 | |
|
|
1337 | for (;;) |
|
|
1338 | { |
|
|
1339 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1340 | |
|
|
1341 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1342 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1343 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1344 | |
|
|
1345 | if (res < (ssize_t)sizeof (si)) |
|
|
1346 | break; |
|
|
1347 | } |
|
|
1348 | } |
|
|
1349 | #endif |
1234 | |
1350 | |
1235 | /*****************************************************************************/ |
1351 | /*****************************************************************************/ |
1236 | |
1352 | |
1237 | static WL childs [EV_PID_HASHSIZE]; |
1353 | static WL childs [EV_PID_HASHSIZE]; |
1238 | |
1354 | |
… | |
… | |
1458 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1574 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1459 | have_monotonic = 1; |
1575 | have_monotonic = 1; |
1460 | } |
1576 | } |
1461 | #endif |
1577 | #endif |
1462 | |
1578 | |
|
|
1579 | /* pid check not overridable via env */ |
|
|
1580 | #ifndef _WIN32 |
|
|
1581 | if (flags & EVFLAG_FORKCHECK) |
|
|
1582 | curpid = getpid (); |
|
|
1583 | #endif |
|
|
1584 | |
|
|
1585 | if (!(flags & EVFLAG_NOENV) |
|
|
1586 | && !enable_secure () |
|
|
1587 | && getenv ("LIBEV_FLAGS")) |
|
|
1588 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1589 | |
1463 | ev_rt_now = ev_time (); |
1590 | ev_rt_now = ev_time (); |
1464 | mn_now = get_clock (); |
1591 | mn_now = get_clock (); |
1465 | now_floor = mn_now; |
1592 | now_floor = mn_now; |
1466 | rtmn_diff = ev_rt_now - mn_now; |
1593 | rtmn_diff = ev_rt_now - mn_now; |
1467 | #if EV_MINIMAL < 2 |
1594 | #if EV_MINIMAL < 2 |
… | |
… | |
1470 | |
1597 | |
1471 | io_blocktime = 0.; |
1598 | io_blocktime = 0.; |
1472 | timeout_blocktime = 0.; |
1599 | timeout_blocktime = 0.; |
1473 | backend = 0; |
1600 | backend = 0; |
1474 | backend_fd = -1; |
1601 | backend_fd = -1; |
1475 | gotasync = 0; |
1602 | sig_pending = 0; |
|
|
1603 | #if EV_ASYNC_ENABLE |
|
|
1604 | async_pending = 0; |
|
|
1605 | #endif |
1476 | #if EV_USE_INOTIFY |
1606 | #if EV_USE_INOTIFY |
1477 | fs_fd = -2; |
1607 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1478 | #endif |
1608 | #endif |
1479 | |
1609 | #if EV_USE_SIGNALFD |
1480 | /* pid check not overridable via env */ |
1610 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1481 | #ifndef _WIN32 |
|
|
1482 | if (flags & EVFLAG_FORKCHECK) |
|
|
1483 | curpid = getpid (); |
|
|
1484 | #endif |
1611 | #endif |
1485 | |
|
|
1486 | if (!(flags & EVFLAG_NOENV) |
|
|
1487 | && !enable_secure () |
|
|
1488 | && getenv ("LIBEV_FLAGS")) |
|
|
1489 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1490 | |
1612 | |
1491 | if (!(flags & 0x0000ffffU)) |
1613 | if (!(flags & 0x0000ffffU)) |
1492 | flags |= ev_recommended_backends (); |
1614 | flags |= ev_recommended_backends (); |
1493 | |
1615 | |
1494 | #if EV_USE_PORT |
1616 | #if EV_USE_PORT |
… | |
… | |
1520 | { |
1642 | { |
1521 | int i; |
1643 | int i; |
1522 | |
1644 | |
1523 | if (ev_is_active (&pipe_w)) |
1645 | if (ev_is_active (&pipe_w)) |
1524 | { |
1646 | { |
1525 | ev_ref (EV_A); /* signal watcher */ |
1647 | /*ev_ref (EV_A);*/ |
1526 | ev_io_stop (EV_A_ &pipe_w); |
1648 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1527 | |
1649 | |
1528 | #if EV_USE_EVENTFD |
1650 | #if EV_USE_EVENTFD |
1529 | if (evfd >= 0) |
1651 | if (evfd >= 0) |
1530 | close (evfd); |
1652 | close (evfd); |
1531 | #endif |
1653 | #endif |
1532 | |
1654 | |
1533 | if (evpipe [0] >= 0) |
1655 | if (evpipe [0] >= 0) |
1534 | { |
1656 | { |
1535 | close (evpipe [0]); |
1657 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1536 | close (evpipe [1]); |
1658 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1537 | } |
1659 | } |
1538 | } |
1660 | } |
|
|
1661 | |
|
|
1662 | #if EV_USE_SIGNALFD |
|
|
1663 | if (ev_is_active (&sigfd_w)) |
|
|
1664 | close (sigfd); |
|
|
1665 | #endif |
1539 | |
1666 | |
1540 | #if EV_USE_INOTIFY |
1667 | #if EV_USE_INOTIFY |
1541 | if (fs_fd >= 0) |
1668 | if (fs_fd >= 0) |
1542 | close (fs_fd); |
1669 | close (fs_fd); |
1543 | #endif |
1670 | #endif |
… | |
… | |
1567 | #if EV_IDLE_ENABLE |
1694 | #if EV_IDLE_ENABLE |
1568 | array_free (idle, [i]); |
1695 | array_free (idle, [i]); |
1569 | #endif |
1696 | #endif |
1570 | } |
1697 | } |
1571 | |
1698 | |
1572 | ev_free (anfds); anfdmax = 0; |
1699 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1573 | |
1700 | |
1574 | /* have to use the microsoft-never-gets-it-right macro */ |
1701 | /* have to use the microsoft-never-gets-it-right macro */ |
1575 | array_free (rfeed, EMPTY); |
1702 | array_free (rfeed, EMPTY); |
1576 | array_free (fdchange, EMPTY); |
1703 | array_free (fdchange, EMPTY); |
1577 | array_free (timer, EMPTY); |
1704 | array_free (timer, EMPTY); |
… | |
… | |
1612 | |
1739 | |
1613 | if (ev_is_active (&pipe_w)) |
1740 | if (ev_is_active (&pipe_w)) |
1614 | { |
1741 | { |
1615 | /* this "locks" the handlers against writing to the pipe */ |
1742 | /* this "locks" the handlers against writing to the pipe */ |
1616 | /* while we modify the fd vars */ |
1743 | /* while we modify the fd vars */ |
1617 | gotsig = 1; |
1744 | sig_pending = 1; |
1618 | #if EV_ASYNC_ENABLE |
1745 | #if EV_ASYNC_ENABLE |
1619 | gotasync = 1; |
1746 | async_pending = 1; |
1620 | #endif |
1747 | #endif |
1621 | |
1748 | |
1622 | ev_ref (EV_A); |
1749 | ev_ref (EV_A); |
1623 | ev_io_stop (EV_A_ &pipe_w); |
1750 | ev_io_stop (EV_A_ &pipe_w); |
1624 | |
1751 | |
… | |
… | |
1627 | close (evfd); |
1754 | close (evfd); |
1628 | #endif |
1755 | #endif |
1629 | |
1756 | |
1630 | if (evpipe [0] >= 0) |
1757 | if (evpipe [0] >= 0) |
1631 | { |
1758 | { |
1632 | close (evpipe [0]); |
1759 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1633 | close (evpipe [1]); |
1760 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1634 | } |
1761 | } |
1635 | |
1762 | |
1636 | evpipe_init (EV_A); |
1763 | evpipe_init (EV_A); |
1637 | /* now iterate over everything, in case we missed something */ |
1764 | /* now iterate over everything, in case we missed something */ |
1638 | pipecb (EV_A_ &pipe_w, EV_READ); |
1765 | pipecb (EV_A_ &pipe_w, EV_READ); |
… | |
… | |
1644 | #if EV_MULTIPLICITY |
1771 | #if EV_MULTIPLICITY |
1645 | |
1772 | |
1646 | struct ev_loop * |
1773 | struct ev_loop * |
1647 | ev_loop_new (unsigned int flags) |
1774 | ev_loop_new (unsigned int flags) |
1648 | { |
1775 | { |
1649 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1776 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1650 | |
1777 | |
1651 | memset (loop, 0, sizeof (struct ev_loop)); |
1778 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1652 | |
|
|
1653 | loop_init (EV_A_ flags); |
1779 | loop_init (EV_A_ flags); |
1654 | |
1780 | |
1655 | if (ev_backend (EV_A)) |
1781 | if (ev_backend (EV_A)) |
1656 | return loop; |
1782 | return EV_A; |
1657 | |
1783 | |
1658 | return 0; |
1784 | return 0; |
1659 | } |
1785 | } |
1660 | |
1786 | |
1661 | void |
1787 | void |
… | |
… | |
1765 | assert (checkmax >= checkcnt); |
1891 | assert (checkmax >= checkcnt); |
1766 | array_verify (EV_A_ (W *)checks, checkcnt); |
1892 | array_verify (EV_A_ (W *)checks, checkcnt); |
1767 | |
1893 | |
1768 | # if 0 |
1894 | # if 0 |
1769 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1895 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1770 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1896 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
1771 | # endif |
1897 | # endif |
1772 | #endif |
1898 | #endif |
1773 | } |
1899 | } |
1774 | #endif |
1900 | #endif |
1775 | |
1901 | |
… | |
… | |
1782 | #endif |
1908 | #endif |
1783 | { |
1909 | { |
1784 | if (!ev_default_loop_ptr) |
1910 | if (!ev_default_loop_ptr) |
1785 | { |
1911 | { |
1786 | #if EV_MULTIPLICITY |
1912 | #if EV_MULTIPLICITY |
1787 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1913 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1788 | #else |
1914 | #else |
1789 | ev_default_loop_ptr = 1; |
1915 | ev_default_loop_ptr = 1; |
1790 | #endif |
1916 | #endif |
1791 | |
1917 | |
1792 | loop_init (EV_A_ flags); |
1918 | loop_init (EV_A_ flags); |
… | |
… | |
1809 | |
1935 | |
1810 | void |
1936 | void |
1811 | ev_default_destroy (void) |
1937 | ev_default_destroy (void) |
1812 | { |
1938 | { |
1813 | #if EV_MULTIPLICITY |
1939 | #if EV_MULTIPLICITY |
1814 | struct ev_loop *loop = ev_default_loop_ptr; |
1940 | EV_P = ev_default_loop_ptr; |
1815 | #endif |
1941 | #endif |
1816 | |
1942 | |
1817 | ev_default_loop_ptr = 0; |
1943 | ev_default_loop_ptr = 0; |
1818 | |
1944 | |
1819 | #ifndef _WIN32 |
1945 | #ifndef _WIN32 |
… | |
… | |
1826 | |
1952 | |
1827 | void |
1953 | void |
1828 | ev_default_fork (void) |
1954 | ev_default_fork (void) |
1829 | { |
1955 | { |
1830 | #if EV_MULTIPLICITY |
1956 | #if EV_MULTIPLICITY |
1831 | struct ev_loop *loop = ev_default_loop_ptr; |
1957 | EV_P = ev_default_loop_ptr; |
1832 | #endif |
1958 | #endif |
1833 | |
1959 | |
1834 | postfork = 1; /* must be in line with ev_loop_fork */ |
1960 | postfork = 1; /* must be in line with ev_loop_fork */ |
1835 | } |
1961 | } |
1836 | |
1962 | |
… | |
… | |
2031 | ANHE_at_cache (*he); |
2157 | ANHE_at_cache (*he); |
2032 | } |
2158 | } |
2033 | } |
2159 | } |
2034 | |
2160 | |
2035 | /* fetch new monotonic and realtime times from the kernel */ |
2161 | /* fetch new monotonic and realtime times from the kernel */ |
2036 | /* also detetc if there was a timejump, and act accordingly */ |
2162 | /* also detect if there was a timejump, and act accordingly */ |
2037 | inline_speed void |
2163 | inline_speed void |
2038 | time_update (EV_P_ ev_tstamp max_block) |
2164 | time_update (EV_P_ ev_tstamp max_block) |
2039 | { |
2165 | { |
2040 | #if EV_USE_MONOTONIC |
2166 | #if EV_USE_MONOTONIC |
2041 | if (expect_true (have_monotonic)) |
2167 | if (expect_true (have_monotonic)) |
… | |
… | |
2302 | inline_size void |
2428 | inline_size void |
2303 | wlist_del (WL *head, WL elem) |
2429 | wlist_del (WL *head, WL elem) |
2304 | { |
2430 | { |
2305 | while (*head) |
2431 | while (*head) |
2306 | { |
2432 | { |
2307 | if (*head == elem) |
2433 | if (expect_true (*head == elem)) |
2308 | { |
2434 | { |
2309 | *head = elem->next; |
2435 | *head = elem->next; |
2310 | return; |
2436 | break; |
2311 | } |
2437 | } |
2312 | |
2438 | |
2313 | head = &(*head)->next; |
2439 | head = &(*head)->next; |
2314 | } |
2440 | } |
2315 | } |
2441 | } |
… | |
… | |
2569 | #endif |
2695 | #endif |
2570 | |
2696 | |
2571 | void noinline |
2697 | void noinline |
2572 | ev_signal_start (EV_P_ ev_signal *w) |
2698 | ev_signal_start (EV_P_ ev_signal *w) |
2573 | { |
2699 | { |
2574 | #if EV_MULTIPLICITY |
|
|
2575 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2576 | #endif |
|
|
2577 | if (expect_false (ev_is_active (w))) |
2700 | if (expect_false (ev_is_active (w))) |
2578 | return; |
2701 | return; |
2579 | |
2702 | |
2580 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2703 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2581 | |
2704 | |
2582 | evpipe_init (EV_A); |
2705 | #if EV_MULTIPLICITY |
|
|
2706 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2707 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2583 | |
2708 | |
2584 | EV_FREQUENT_CHECK; |
2709 | signals [w->signum - 1].loop = EV_A; |
|
|
2710 | #endif |
2585 | |
2711 | |
|
|
2712 | EV_FREQUENT_CHECK; |
|
|
2713 | |
|
|
2714 | #if EV_USE_SIGNALFD |
|
|
2715 | if (sigfd == -2) |
2586 | { |
2716 | { |
2587 | #ifndef _WIN32 |
2717 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2588 | sigset_t full, prev; |
2718 | if (sigfd < 0 && errno == EINVAL) |
2589 | sigfillset (&full); |
2719 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2590 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2591 | #endif |
|
|
2592 | |
2720 | |
2593 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2721 | if (sigfd >= 0) |
|
|
2722 | { |
|
|
2723 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2594 | |
2724 | |
2595 | #ifndef _WIN32 |
2725 | sigemptyset (&sigfd_set); |
2596 | sigprocmask (SIG_SETMASK, &prev, 0); |
2726 | |
2597 | #endif |
2727 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2728 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2729 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2730 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2731 | } |
2598 | } |
2732 | } |
|
|
2733 | |
|
|
2734 | if (sigfd >= 0) |
|
|
2735 | { |
|
|
2736 | /* TODO: check .head */ |
|
|
2737 | sigaddset (&sigfd_set, w->signum); |
|
|
2738 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2739 | |
|
|
2740 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2741 | } |
|
|
2742 | #endif |
2599 | |
2743 | |
2600 | ev_start (EV_A_ (W)w, 1); |
2744 | ev_start (EV_A_ (W)w, 1); |
2601 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2745 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2602 | |
2746 | |
2603 | if (!((WL)w)->next) |
2747 | if (!((WL)w)->next) |
|
|
2748 | # if EV_USE_SIGNALFD |
|
|
2749 | if (sigfd < 0) /*TODO*/ |
|
|
2750 | # endif |
2604 | { |
2751 | { |
2605 | #if _WIN32 |
2752 | # ifdef _WIN32 |
|
|
2753 | evpipe_init (EV_A); |
|
|
2754 | |
2606 | signal (w->signum, ev_sighandler); |
2755 | signal (w->signum, ev_sighandler); |
2607 | #else |
2756 | # else |
2608 | struct sigaction sa = { }; |
2757 | struct sigaction sa; |
|
|
2758 | |
|
|
2759 | evpipe_init (EV_A); |
|
|
2760 | |
2609 | sa.sa_handler = ev_sighandler; |
2761 | sa.sa_handler = ev_sighandler; |
2610 | sigfillset (&sa.sa_mask); |
2762 | sigfillset (&sa.sa_mask); |
2611 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2763 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2612 | sigaction (w->signum, &sa, 0); |
2764 | sigaction (w->signum, &sa, 0); |
|
|
2765 | |
|
|
2766 | sigemptyset (&sa.sa_mask); |
|
|
2767 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2768 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2613 | #endif |
2769 | #endif |
2614 | } |
2770 | } |
2615 | |
2771 | |
2616 | EV_FREQUENT_CHECK; |
2772 | EV_FREQUENT_CHECK; |
2617 | } |
2773 | } |
2618 | |
2774 | |
2619 | void noinline |
2775 | void noinline |
… | |
… | |
2627 | |
2783 | |
2628 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2784 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2629 | ev_stop (EV_A_ (W)w); |
2785 | ev_stop (EV_A_ (W)w); |
2630 | |
2786 | |
2631 | if (!signals [w->signum - 1].head) |
2787 | if (!signals [w->signum - 1].head) |
|
|
2788 | { |
|
|
2789 | #if EV_MULTIPLICITY |
|
|
2790 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2791 | #endif |
|
|
2792 | #if EV_USE_SIGNALFD |
|
|
2793 | if (sigfd >= 0) |
|
|
2794 | { |
|
|
2795 | sigset_t ss; |
|
|
2796 | |
|
|
2797 | sigemptyset (&ss); |
|
|
2798 | sigaddset (&ss, w->signum); |
|
|
2799 | sigdelset (&sigfd_set, w->signum); |
|
|
2800 | |
|
|
2801 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2802 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2803 | } |
|
|
2804 | else |
|
|
2805 | #endif |
2632 | signal (w->signum, SIG_DFL); |
2806 | signal (w->signum, SIG_DFL); |
|
|
2807 | } |
2633 | |
2808 | |
2634 | EV_FREQUENT_CHECK; |
2809 | EV_FREQUENT_CHECK; |
2635 | } |
2810 | } |
2636 | |
2811 | |
2637 | void |
2812 | void |
… | |
… | |
2685 | static void noinline |
2860 | static void noinline |
2686 | infy_add (EV_P_ ev_stat *w) |
2861 | infy_add (EV_P_ ev_stat *w) |
2687 | { |
2862 | { |
2688 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2863 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2689 | |
2864 | |
2690 | if (w->wd < 0) |
2865 | if (w->wd >= 0) |
|
|
2866 | { |
|
|
2867 | struct statfs sfs; |
|
|
2868 | |
|
|
2869 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2870 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2871 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2872 | |
|
|
2873 | if (!fs_2625) |
|
|
2874 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2875 | else if (!statfs (w->path, &sfs) |
|
|
2876 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2877 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2878 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2879 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2880 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2881 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2882 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2883 | else |
|
|
2884 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2691 | { |
2885 | } |
|
|
2886 | else |
|
|
2887 | { |
|
|
2888 | /* can't use inotify, continue to stat */ |
2692 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2889 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2693 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2694 | |
2890 | |
2695 | /* monitor some parent directory for speedup hints */ |
2891 | /* if path is not there, monitor some parent directory for speedup hints */ |
2696 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2892 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2697 | /* but an efficiency issue only */ |
2893 | /* but an efficiency issue only */ |
2698 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2894 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2699 | { |
2895 | { |
2700 | char path [4096]; |
2896 | char path [4096]; |
… | |
… | |
2716 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2912 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2717 | } |
2913 | } |
2718 | } |
2914 | } |
2719 | |
2915 | |
2720 | if (w->wd >= 0) |
2916 | if (w->wd >= 0) |
2721 | { |
|
|
2722 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2917 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2723 | |
2918 | |
2724 | /* now local changes will be tracked by inotify, but remote changes won't */ |
2919 | /* now re-arm timer, if required */ |
2725 | /* unless the filesystem it known to be local, we therefore still poll */ |
2920 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2726 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2727 | struct statfs sfs; |
|
|
2728 | |
|
|
2729 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2730 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2731 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2732 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2733 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2734 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2735 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2736 | return; |
|
|
2737 | |
|
|
2738 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2739 | ev_timer_again (EV_A_ &w->timer); |
2921 | ev_timer_again (EV_A_ &w->timer); |
2740 | } |
2922 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2741 | } |
2923 | } |
2742 | |
2924 | |
2743 | static void noinline |
2925 | static void noinline |
2744 | infy_del (EV_P_ ev_stat *w) |
2926 | infy_del (EV_P_ ev_stat *w) |
2745 | { |
2927 | { |
… | |
… | |
2821 | return; |
3003 | return; |
2822 | |
3004 | |
2823 | fs_2625 = 1; |
3005 | fs_2625 = 1; |
2824 | } |
3006 | } |
2825 | |
3007 | |
|
|
3008 | inline_size int |
|
|
3009 | infy_newfd (void) |
|
|
3010 | { |
|
|
3011 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3012 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3013 | if (fd >= 0) |
|
|
3014 | return fd; |
|
|
3015 | #endif |
|
|
3016 | return inotify_init (); |
|
|
3017 | } |
|
|
3018 | |
2826 | inline_size void |
3019 | inline_size void |
2827 | infy_init (EV_P) |
3020 | infy_init (EV_P) |
2828 | { |
3021 | { |
2829 | if (fs_fd != -2) |
3022 | if (fs_fd != -2) |
2830 | return; |
3023 | return; |
2831 | |
3024 | |
2832 | fs_fd = -1; |
3025 | fs_fd = -1; |
2833 | |
3026 | |
2834 | check_2625 (EV_A); |
3027 | check_2625 (EV_A); |
2835 | |
3028 | |
2836 | fs_fd = inotify_init (); |
3029 | fs_fd = infy_newfd (); |
2837 | |
3030 | |
2838 | if (fs_fd >= 0) |
3031 | if (fs_fd >= 0) |
2839 | { |
3032 | { |
|
|
3033 | fd_intern (fs_fd); |
2840 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3034 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2841 | ev_set_priority (&fs_w, EV_MAXPRI); |
3035 | ev_set_priority (&fs_w, EV_MAXPRI); |
2842 | ev_io_start (EV_A_ &fs_w); |
3036 | ev_io_start (EV_A_ &fs_w); |
|
|
3037 | ev_unref (EV_A); |
2843 | } |
3038 | } |
2844 | } |
3039 | } |
2845 | |
3040 | |
2846 | inline_size void |
3041 | inline_size void |
2847 | infy_fork (EV_P) |
3042 | infy_fork (EV_P) |
… | |
… | |
2849 | int slot; |
3044 | int slot; |
2850 | |
3045 | |
2851 | if (fs_fd < 0) |
3046 | if (fs_fd < 0) |
2852 | return; |
3047 | return; |
2853 | |
3048 | |
|
|
3049 | ev_ref (EV_A); |
|
|
3050 | ev_io_stop (EV_A_ &fs_w); |
2854 | close (fs_fd); |
3051 | close (fs_fd); |
2855 | fs_fd = inotify_init (); |
3052 | fs_fd = infy_newfd (); |
|
|
3053 | |
|
|
3054 | if (fs_fd >= 0) |
|
|
3055 | { |
|
|
3056 | fd_intern (fs_fd); |
|
|
3057 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3058 | ev_io_start (EV_A_ &fs_w); |
|
|
3059 | ev_unref (EV_A); |
|
|
3060 | } |
2856 | |
3061 | |
2857 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3062 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2858 | { |
3063 | { |
2859 | WL w_ = fs_hash [slot].head; |
3064 | WL w_ = fs_hash [slot].head; |
2860 | fs_hash [slot].head = 0; |
3065 | fs_hash [slot].head = 0; |
… | |
… | |
2867 | w->wd = -1; |
3072 | w->wd = -1; |
2868 | |
3073 | |
2869 | if (fs_fd >= 0) |
3074 | if (fs_fd >= 0) |
2870 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3075 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2871 | else |
3076 | else |
|
|
3077 | { |
|
|
3078 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3079 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2872 | ev_timer_again (EV_A_ &w->timer); |
3080 | ev_timer_again (EV_A_ &w->timer); |
|
|
3081 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3082 | } |
2873 | } |
3083 | } |
2874 | } |
3084 | } |
2875 | } |
3085 | } |
2876 | |
3086 | |
2877 | #endif |
3087 | #endif |
… | |
… | |
2894 | static void noinline |
3104 | static void noinline |
2895 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3105 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2896 | { |
3106 | { |
2897 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3107 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2898 | |
3108 | |
2899 | /* we copy this here each the time so that */ |
3109 | ev_statdata prev = w->attr; |
2900 | /* prev has the old value when the callback gets invoked */ |
|
|
2901 | w->prev = w->attr; |
|
|
2902 | ev_stat_stat (EV_A_ w); |
3110 | ev_stat_stat (EV_A_ w); |
2903 | |
3111 | |
2904 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3112 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2905 | if ( |
3113 | if ( |
2906 | w->prev.st_dev != w->attr.st_dev |
3114 | prev.st_dev != w->attr.st_dev |
2907 | || w->prev.st_ino != w->attr.st_ino |
3115 | || prev.st_ino != w->attr.st_ino |
2908 | || w->prev.st_mode != w->attr.st_mode |
3116 | || prev.st_mode != w->attr.st_mode |
2909 | || w->prev.st_nlink != w->attr.st_nlink |
3117 | || prev.st_nlink != w->attr.st_nlink |
2910 | || w->prev.st_uid != w->attr.st_uid |
3118 | || prev.st_uid != w->attr.st_uid |
2911 | || w->prev.st_gid != w->attr.st_gid |
3119 | || prev.st_gid != w->attr.st_gid |
2912 | || w->prev.st_rdev != w->attr.st_rdev |
3120 | || prev.st_rdev != w->attr.st_rdev |
2913 | || w->prev.st_size != w->attr.st_size |
3121 | || prev.st_size != w->attr.st_size |
2914 | || w->prev.st_atime != w->attr.st_atime |
3122 | || prev.st_atime != w->attr.st_atime |
2915 | || w->prev.st_mtime != w->attr.st_mtime |
3123 | || prev.st_mtime != w->attr.st_mtime |
2916 | || w->prev.st_ctime != w->attr.st_ctime |
3124 | || prev.st_ctime != w->attr.st_ctime |
2917 | ) { |
3125 | ) { |
|
|
3126 | /* we only update w->prev on actual differences */ |
|
|
3127 | /* in case we test more often than invoke the callback, */ |
|
|
3128 | /* to ensure that prev is always different to attr */ |
|
|
3129 | w->prev = prev; |
|
|
3130 | |
2918 | #if EV_USE_INOTIFY |
3131 | #if EV_USE_INOTIFY |
2919 | if (fs_fd >= 0) |
3132 | if (fs_fd >= 0) |
2920 | { |
3133 | { |
2921 | infy_del (EV_A_ w); |
3134 | infy_del (EV_A_ w); |
2922 | infy_add (EV_A_ w); |
3135 | infy_add (EV_A_ w); |
… | |
… | |
2947 | |
3160 | |
2948 | if (fs_fd >= 0) |
3161 | if (fs_fd >= 0) |
2949 | infy_add (EV_A_ w); |
3162 | infy_add (EV_A_ w); |
2950 | else |
3163 | else |
2951 | #endif |
3164 | #endif |
|
|
3165 | { |
2952 | ev_timer_again (EV_A_ &w->timer); |
3166 | ev_timer_again (EV_A_ &w->timer); |
|
|
3167 | ev_unref (EV_A); |
|
|
3168 | } |
2953 | |
3169 | |
2954 | ev_start (EV_A_ (W)w, 1); |
3170 | ev_start (EV_A_ (W)w, 1); |
2955 | |
3171 | |
2956 | EV_FREQUENT_CHECK; |
3172 | EV_FREQUENT_CHECK; |
2957 | } |
3173 | } |
… | |
… | |
2966 | EV_FREQUENT_CHECK; |
3182 | EV_FREQUENT_CHECK; |
2967 | |
3183 | |
2968 | #if EV_USE_INOTIFY |
3184 | #if EV_USE_INOTIFY |
2969 | infy_del (EV_A_ w); |
3185 | infy_del (EV_A_ w); |
2970 | #endif |
3186 | #endif |
|
|
3187 | |
|
|
3188 | if (ev_is_active (&w->timer)) |
|
|
3189 | { |
|
|
3190 | ev_ref (EV_A); |
2971 | ev_timer_stop (EV_A_ &w->timer); |
3191 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3192 | } |
2972 | |
3193 | |
2973 | ev_stop (EV_A_ (W)w); |
3194 | ev_stop (EV_A_ (W)w); |
2974 | |
3195 | |
2975 | EV_FREQUENT_CHECK; |
3196 | EV_FREQUENT_CHECK; |
2976 | } |
3197 | } |
… | |
… | |
3117 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3338 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3118 | { |
3339 | { |
3119 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3340 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3120 | |
3341 | |
3121 | { |
3342 | { |
3122 | struct ev_loop *loop = w->other; |
3343 | EV_P = w->other; |
3123 | |
3344 | |
3124 | while (fdchangecnt) |
3345 | while (fdchangecnt) |
3125 | { |
3346 | { |
3126 | fd_reify (EV_A); |
3347 | fd_reify (EV_A); |
3127 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3348 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
… | |
… | |
3135 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3356 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3136 | |
3357 | |
3137 | ev_embed_stop (EV_A_ w); |
3358 | ev_embed_stop (EV_A_ w); |
3138 | |
3359 | |
3139 | { |
3360 | { |
3140 | struct ev_loop *loop = w->other; |
3361 | EV_P = w->other; |
3141 | |
3362 | |
3142 | ev_loop_fork (EV_A); |
3363 | ev_loop_fork (EV_A); |
3143 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3364 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3144 | } |
3365 | } |
3145 | |
3366 | |
… | |
… | |
3159 | { |
3380 | { |
3160 | if (expect_false (ev_is_active (w))) |
3381 | if (expect_false (ev_is_active (w))) |
3161 | return; |
3382 | return; |
3162 | |
3383 | |
3163 | { |
3384 | { |
3164 | struct ev_loop *loop = w->other; |
3385 | EV_P = w->other; |
3165 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3386 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3166 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3387 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3167 | } |
3388 | } |
3168 | |
3389 | |
3169 | EV_FREQUENT_CHECK; |
3390 | EV_FREQUENT_CHECK; |
… | |
… | |
3281 | |
3502 | |
3282 | void |
3503 | void |
3283 | ev_async_send (EV_P_ ev_async *w) |
3504 | ev_async_send (EV_P_ ev_async *w) |
3284 | { |
3505 | { |
3285 | w->sent = 1; |
3506 | w->sent = 1; |
3286 | evpipe_write (EV_A_ &gotasync); |
3507 | evpipe_write (EV_A_ &async_pending); |
3287 | } |
3508 | } |
3288 | #endif |
3509 | #endif |
3289 | |
3510 | |
3290 | /*****************************************************************************/ |
3511 | /*****************************************************************************/ |
3291 | |
3512 | |
… | |
… | |
3440 | if (types & EV_CHECK) |
3661 | if (types & EV_CHECK) |
3441 | for (i = checkcnt; i--; ) |
3662 | for (i = checkcnt; i--; ) |
3442 | cb (EV_A_ EV_CHECK, checks [i]); |
3663 | cb (EV_A_ EV_CHECK, checks [i]); |
3443 | |
3664 | |
3444 | if (types & EV_SIGNAL) |
3665 | if (types & EV_SIGNAL) |
3445 | for (i = 0; i < signalmax; ++i) |
3666 | for (i = 0; i < EV_NSIG - 1; ++i) |
3446 | for (wl = signals [i].head; wl; ) |
3667 | for (wl = signals [i].head; wl; ) |
3447 | { |
3668 | { |
3448 | wn = wl->next; |
3669 | wn = wl->next; |
3449 | cb (EV_A_ EV_SIGNAL, wl); |
3670 | cb (EV_A_ EV_SIGNAL, wl); |
3450 | wl = wn; |
3671 | wl = wn; |