… | |
… | |
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 |
… | |
… | |
178 | # endif |
186 | # endif |
179 | #endif |
187 | #endif |
180 | |
188 | |
181 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
189 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
182 | |
190 | |
|
|
191 | /* try to deduce the maximum number of signals on this platform */ |
|
|
192 | /* one some platforms, NSIG is one too large. we do not bother */ |
|
|
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__ >= 9)) |
|
|
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 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
393 | # endif |
344 | # ifdef __cplusplus |
394 | # ifdef __cplusplus |
345 | extern "C" { |
395 | extern "C" { |
346 | # endif |
396 | # endif |
347 | int eventfd (unsigned int initval, int flags); |
397 | int eventfd (unsigned int initval, int flags); |
348 | # ifdef __cplusplus |
398 | # ifdef __cplusplus |
349 | } |
399 | } |
350 | # endif |
400 | # endif |
|
|
401 | #endif |
|
|
402 | |
|
|
403 | #if EV_USE_SIGNALFD |
|
|
404 | # include <sys/signalfd.h> |
351 | #endif |
405 | #endif |
352 | |
406 | |
353 | /**/ |
407 | /**/ |
354 | |
408 | |
355 | #if EV_VERIFY >= 3 |
409 | #if EV_VERIFY >= 3 |
… | |
… | |
391 | # define inline_speed static noinline |
445 | # define inline_speed static noinline |
392 | #else |
446 | #else |
393 | # define inline_speed static inline |
447 | # define inline_speed static inline |
394 | #endif |
448 | #endif |
395 | |
449 | |
396 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
450 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
451 | |
|
|
452 | #if EV_MINPRI == EV_MAXPRI |
|
|
453 | # define ABSPRI(w) (((W)w), 0) |
|
|
454 | #else |
397 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
455 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
456 | #endif |
398 | |
457 | |
399 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
458 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
400 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
459 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
401 | |
460 | |
402 | typedef ev_watcher *W; |
461 | typedef ev_watcher *W; |
… | |
… | |
485 | #define ev_malloc(size) ev_realloc (0, (size)) |
544 | #define ev_malloc(size) ev_realloc (0, (size)) |
486 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
545 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
487 | |
546 | |
488 | /*****************************************************************************/ |
547 | /*****************************************************************************/ |
489 | |
548 | |
|
|
549 | /* set in reify when reification needed */ |
|
|
550 | #define EV_ANFD_REIFY 1 |
|
|
551 | |
490 | /* file descriptor info structure */ |
552 | /* file descriptor info structure */ |
491 | typedef struct |
553 | typedef struct |
492 | { |
554 | { |
493 | WL head; |
555 | WL head; |
494 | unsigned char events; /* the events watched for */ |
556 | unsigned char events; /* the events watched for */ |
495 | unsigned char reify; /* flag set when this ANFD needs reification */ |
557 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
496 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
558 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
497 | unsigned char unused; |
559 | unsigned char unused; |
498 | #if EV_USE_EPOLL |
560 | #if EV_USE_EPOLL |
499 | unsigned int egen; /* generation counter to counter epoll bugs */ |
561 | unsigned int egen; /* generation counter to counter epoll bugs */ |
500 | #endif |
562 | #endif |
… | |
… | |
562 | |
624 | |
563 | static int ev_default_loop_ptr; |
625 | static int ev_default_loop_ptr; |
564 | |
626 | |
565 | #endif |
627 | #endif |
566 | |
628 | |
|
|
629 | #if EV_MINIMAL < 2 |
|
|
630 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
631 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
632 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
633 | #else |
|
|
634 | # define EV_RELEASE_CB (void)0 |
|
|
635 | # define EV_ACQUIRE_CB (void)0 |
|
|
636 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
637 | #endif |
|
|
638 | |
|
|
639 | #define EVUNLOOP_RECURSE 0x80 |
|
|
640 | |
567 | /*****************************************************************************/ |
641 | /*****************************************************************************/ |
568 | |
642 | |
569 | #ifndef EV_HAVE_EV_TIME |
643 | #ifndef EV_HAVE_EV_TIME |
570 | ev_tstamp |
644 | ev_tstamp |
571 | ev_time (void) |
645 | ev_time (void) |
… | |
… | |
627 | |
701 | |
628 | tv.tv_sec = (time_t)delay; |
702 | tv.tv_sec = (time_t)delay; |
629 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
703 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
630 | |
704 | |
631 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
705 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
632 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
706 | /* something not guaranteed by newer posix versions, but guaranteed */ |
633 | /* by older ones */ |
707 | /* by older ones */ |
634 | select (0, 0, 0, 0, &tv); |
708 | select (0, 0, 0, 0, &tv); |
635 | #endif |
709 | #endif |
636 | } |
710 | } |
637 | } |
711 | } |
… | |
… | |
745 | } |
819 | } |
746 | |
820 | |
747 | /*****************************************************************************/ |
821 | /*****************************************************************************/ |
748 | |
822 | |
749 | inline_speed void |
823 | inline_speed void |
750 | fd_event (EV_P_ int fd, int revents) |
824 | fd_event_nc (EV_P_ int fd, int revents) |
751 | { |
825 | { |
752 | ANFD *anfd = anfds + fd; |
826 | ANFD *anfd = anfds + fd; |
753 | ev_io *w; |
827 | ev_io *w; |
754 | |
828 | |
755 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
829 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
759 | if (ev) |
833 | if (ev) |
760 | ev_feed_event (EV_A_ (W)w, ev); |
834 | ev_feed_event (EV_A_ (W)w, ev); |
761 | } |
835 | } |
762 | } |
836 | } |
763 | |
837 | |
|
|
838 | /* do not submit kernel events for fds that have reify set */ |
|
|
839 | /* because that means they changed while we were polling for new events */ |
|
|
840 | inline_speed void |
|
|
841 | fd_event (EV_P_ int fd, int revents) |
|
|
842 | { |
|
|
843 | ANFD *anfd = anfds + fd; |
|
|
844 | |
|
|
845 | if (expect_true (!anfd->reify)) |
|
|
846 | fd_event_nc (EV_A_ fd, revents); |
|
|
847 | } |
|
|
848 | |
764 | void |
849 | void |
765 | ev_feed_fd_event (EV_P_ int fd, int revents) |
850 | ev_feed_fd_event (EV_P_ int fd, int revents) |
766 | { |
851 | { |
767 | if (fd >= 0 && fd < anfdmax) |
852 | if (fd >= 0 && fd < anfdmax) |
768 | fd_event (EV_A_ fd, revents); |
853 | fd_event_nc (EV_A_ fd, revents); |
769 | } |
854 | } |
770 | |
855 | |
771 | /* make sure the external fd watch events are in-sync */ |
856 | /* make sure the external fd watch events are in-sync */ |
772 | /* with the kernel/libev internal state */ |
857 | /* with the kernel/libev internal state */ |
773 | inline_size void |
858 | inline_size void |
… | |
… | |
888 | for (fd = 0; fd < anfdmax; ++fd) |
973 | for (fd = 0; fd < anfdmax; ++fd) |
889 | if (anfds [fd].events) |
974 | if (anfds [fd].events) |
890 | { |
975 | { |
891 | anfds [fd].events = 0; |
976 | anfds [fd].events = 0; |
892 | anfds [fd].emask = 0; |
977 | anfds [fd].emask = 0; |
893 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
978 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
894 | } |
979 | } |
895 | } |
980 | } |
896 | |
981 | |
897 | /*****************************************************************************/ |
982 | /*****************************************************************************/ |
898 | |
983 | |
… | |
… | |
1042 | /*****************************************************************************/ |
1127 | /*****************************************************************************/ |
1043 | |
1128 | |
1044 | /* associate signal watchers to a signal signal */ |
1129 | /* associate signal watchers to a signal signal */ |
1045 | typedef struct |
1130 | typedef struct |
1046 | { |
1131 | { |
|
|
1132 | #if EV_MULTIPLICITY |
|
|
1133 | EV_P; |
|
|
1134 | #endif |
1047 | WL head; |
1135 | WL head; |
1048 | EV_ATOMIC_T gotsig; |
1136 | EV_ATOMIC_T gotsig; |
1049 | } ANSIG; |
1137 | } ANSIG; |
1050 | |
1138 | |
1051 | static ANSIG *signals; |
1139 | static ANSIG signals [EV_NSIG - 1]; |
1052 | static int signalmax; |
|
|
1053 | |
|
|
1054 | static EV_ATOMIC_T gotsig; |
1140 | static EV_ATOMIC_T gotsig; |
1055 | |
1141 | |
1056 | /*****************************************************************************/ |
1142 | /*****************************************************************************/ |
1057 | |
1143 | |
1058 | /* used to prepare libev internal fd's */ |
1144 | /* used to prepare libev internal fd's */ |
… | |
… | |
1073 | evpipe_init (EV_P) |
1159 | evpipe_init (EV_P) |
1074 | { |
1160 | { |
1075 | if (!ev_is_active (&pipe_w)) |
1161 | if (!ev_is_active (&pipe_w)) |
1076 | { |
1162 | { |
1077 | #if EV_USE_EVENTFD |
1163 | #if EV_USE_EVENTFD |
|
|
1164 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1165 | if (evfd < 0 && errno == EINVAL) |
1078 | if ((evfd = eventfd (0, 0)) >= 0) |
1166 | evfd = eventfd (0, 0); |
|
|
1167 | |
|
|
1168 | if (evfd >= 0) |
1079 | { |
1169 | { |
1080 | evpipe [0] = -1; |
1170 | evpipe [0] = -1; |
1081 | fd_intern (evfd); |
1171 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1082 | ev_io_set (&pipe_w, evfd, EV_READ); |
1172 | ev_io_set (&pipe_w, evfd, EV_READ); |
1083 | } |
1173 | } |
1084 | else |
1174 | else |
1085 | #endif |
1175 | #endif |
1086 | { |
1176 | { |
… | |
… | |
1141 | if (gotsig && ev_is_default_loop (EV_A)) |
1231 | if (gotsig && ev_is_default_loop (EV_A)) |
1142 | { |
1232 | { |
1143 | int signum; |
1233 | int signum; |
1144 | gotsig = 0; |
1234 | gotsig = 0; |
1145 | |
1235 | |
1146 | for (signum = signalmax; signum--; ) |
1236 | for (signum = EV_NSIG - 1; signum--; ) |
1147 | if (signals [signum].gotsig) |
1237 | if (signals [signum].gotsig) |
1148 | ev_feed_signal_event (EV_A_ signum + 1); |
1238 | ev_feed_signal_event (EV_A_ signum + 1); |
1149 | } |
1239 | } |
1150 | |
1240 | |
1151 | #if EV_ASYNC_ENABLE |
1241 | #if EV_ASYNC_ENABLE |
… | |
… | |
1168 | |
1258 | |
1169 | static void |
1259 | static void |
1170 | ev_sighandler (int signum) |
1260 | ev_sighandler (int signum) |
1171 | { |
1261 | { |
1172 | #if EV_MULTIPLICITY |
1262 | #if EV_MULTIPLICITY |
1173 | struct ev_loop *loop = &default_loop_struct; |
1263 | EV_P = signals [signum - 1].loop; |
1174 | #endif |
1264 | #endif |
1175 | |
1265 | |
1176 | #if _WIN32 |
1266 | #if _WIN32 |
1177 | signal (signum, ev_sighandler); |
1267 | signal (signum, ev_sighandler); |
1178 | #endif |
1268 | #endif |
… | |
… | |
1188 | |
1278 | |
1189 | #if EV_MULTIPLICITY |
1279 | #if EV_MULTIPLICITY |
1190 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1280 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1191 | #endif |
1281 | #endif |
1192 | |
1282 | |
|
|
1283 | if (signum <= 0 || signum > EV_NSIG) |
|
|
1284 | return; |
|
|
1285 | |
1193 | --signum; |
1286 | --signum; |
1194 | |
|
|
1195 | if (signum < 0 || signum >= signalmax) |
|
|
1196 | return; |
|
|
1197 | |
1287 | |
1198 | signals [signum].gotsig = 0; |
1288 | signals [signum].gotsig = 0; |
1199 | |
1289 | |
1200 | for (w = signals [signum].head; w; w = w->next) |
1290 | for (w = signals [signum].head; w; w = w->next) |
1201 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1291 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1202 | } |
1292 | } |
|
|
1293 | |
|
|
1294 | #if EV_USE_SIGNALFD |
|
|
1295 | static void |
|
|
1296 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1297 | { |
|
|
1298 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1299 | |
|
|
1300 | for (;;) |
|
|
1301 | { |
|
|
1302 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1303 | |
|
|
1304 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1305 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1306 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1307 | |
|
|
1308 | if (res < (ssize_t)sizeof (si)) |
|
|
1309 | break; |
|
|
1310 | } |
|
|
1311 | } |
|
|
1312 | #endif |
1203 | |
1313 | |
1204 | /*****************************************************************************/ |
1314 | /*****************************************************************************/ |
1205 | |
1315 | |
1206 | static WL childs [EV_PID_HASHSIZE]; |
1316 | static WL childs [EV_PID_HASHSIZE]; |
1207 | |
1317 | |
… | |
… | |
1352 | ev_backend (EV_P) |
1462 | ev_backend (EV_P) |
1353 | { |
1463 | { |
1354 | return backend; |
1464 | return backend; |
1355 | } |
1465 | } |
1356 | |
1466 | |
|
|
1467 | #if EV_MINIMAL < 2 |
1357 | unsigned int |
1468 | unsigned int |
1358 | ev_loop_count (EV_P) |
1469 | ev_loop_count (EV_P) |
1359 | { |
1470 | { |
1360 | return loop_count; |
1471 | return loop_count; |
1361 | } |
1472 | } |
1362 | |
1473 | |
|
|
1474 | unsigned int |
|
|
1475 | ev_loop_depth (EV_P) |
|
|
1476 | { |
|
|
1477 | return loop_depth; |
|
|
1478 | } |
|
|
1479 | |
1363 | void |
1480 | void |
1364 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1481 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1365 | { |
1482 | { |
1366 | io_blocktime = interval; |
1483 | io_blocktime = interval; |
1367 | } |
1484 | } |
… | |
… | |
1369 | void |
1486 | void |
1370 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1487 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1371 | { |
1488 | { |
1372 | timeout_blocktime = interval; |
1489 | timeout_blocktime = interval; |
1373 | } |
1490 | } |
|
|
1491 | |
|
|
1492 | void |
|
|
1493 | ev_set_userdata (EV_P_ void *data) |
|
|
1494 | { |
|
|
1495 | userdata = data; |
|
|
1496 | } |
|
|
1497 | |
|
|
1498 | void * |
|
|
1499 | ev_userdata (EV_P) |
|
|
1500 | { |
|
|
1501 | return userdata; |
|
|
1502 | } |
|
|
1503 | |
|
|
1504 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1505 | { |
|
|
1506 | invoke_cb = invoke_pending_cb; |
|
|
1507 | } |
|
|
1508 | |
|
|
1509 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1510 | { |
|
|
1511 | release_cb = release; |
|
|
1512 | acquire_cb = acquire; |
|
|
1513 | } |
|
|
1514 | #endif |
1374 | |
1515 | |
1375 | /* initialise a loop structure, must be zero-initialised */ |
1516 | /* initialise a loop structure, must be zero-initialised */ |
1376 | static void noinline |
1517 | static void noinline |
1377 | loop_init (EV_P_ unsigned int flags) |
1518 | loop_init (EV_P_ unsigned int flags) |
1378 | { |
1519 | { |
… | |
… | |
1396 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1537 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1397 | have_monotonic = 1; |
1538 | have_monotonic = 1; |
1398 | } |
1539 | } |
1399 | #endif |
1540 | #endif |
1400 | |
1541 | |
|
|
1542 | /* pid check not overridable via env */ |
|
|
1543 | #ifndef _WIN32 |
|
|
1544 | if (flags & EVFLAG_FORKCHECK) |
|
|
1545 | curpid = getpid (); |
|
|
1546 | #endif |
|
|
1547 | |
|
|
1548 | if (!(flags & EVFLAG_NOENV) |
|
|
1549 | && !enable_secure () |
|
|
1550 | && getenv ("LIBEV_FLAGS")) |
|
|
1551 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1552 | |
1401 | ev_rt_now = ev_time (); |
1553 | ev_rt_now = ev_time (); |
1402 | mn_now = get_clock (); |
1554 | mn_now = get_clock (); |
1403 | now_floor = mn_now; |
1555 | now_floor = mn_now; |
1404 | rtmn_diff = ev_rt_now - mn_now; |
1556 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1557 | #if EV_MINIMAL < 2 |
|
|
1558 | invoke_cb = ev_invoke_pending; |
|
|
1559 | #endif |
1405 | |
1560 | |
1406 | io_blocktime = 0.; |
1561 | io_blocktime = 0.; |
1407 | timeout_blocktime = 0.; |
1562 | timeout_blocktime = 0.; |
1408 | backend = 0; |
1563 | backend = 0; |
1409 | backend_fd = -1; |
1564 | backend_fd = -1; |
1410 | gotasync = 0; |
1565 | gotasync = 0; |
1411 | #if EV_USE_INOTIFY |
1566 | #if EV_USE_INOTIFY |
1412 | fs_fd = -2; |
1567 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1413 | #endif |
1568 | #endif |
1414 | |
1569 | #if EV_USE_SIGNALFD |
1415 | /* pid check not overridable via env */ |
1570 | sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; |
1416 | #ifndef _WIN32 |
|
|
1417 | if (flags & EVFLAG_FORKCHECK) |
|
|
1418 | curpid = getpid (); |
|
|
1419 | #endif |
1571 | #endif |
1420 | |
|
|
1421 | if (!(flags & EVFLAG_NOENV) |
|
|
1422 | && !enable_secure () |
|
|
1423 | && getenv ("LIBEV_FLAGS")) |
|
|
1424 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1425 | |
1572 | |
1426 | if (!(flags & 0x0000ffffU)) |
1573 | if (!(flags & 0x0000ffffU)) |
1427 | flags |= ev_recommended_backends (); |
1574 | flags |= ev_recommended_backends (); |
1428 | |
1575 | |
1429 | #if EV_USE_PORT |
1576 | #if EV_USE_PORT |
… | |
… | |
1455 | { |
1602 | { |
1456 | int i; |
1603 | int i; |
1457 | |
1604 | |
1458 | if (ev_is_active (&pipe_w)) |
1605 | if (ev_is_active (&pipe_w)) |
1459 | { |
1606 | { |
1460 | ev_ref (EV_A); /* signal watcher */ |
1607 | /*ev_ref (EV_A);*/ |
1461 | ev_io_stop (EV_A_ &pipe_w); |
1608 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1462 | |
1609 | |
1463 | #if EV_USE_EVENTFD |
1610 | #if EV_USE_EVENTFD |
1464 | if (evfd >= 0) |
1611 | if (evfd >= 0) |
1465 | close (evfd); |
1612 | close (evfd); |
1466 | #endif |
1613 | #endif |
… | |
… | |
1470 | close (evpipe [0]); |
1617 | close (evpipe [0]); |
1471 | close (evpipe [1]); |
1618 | close (evpipe [1]); |
1472 | } |
1619 | } |
1473 | } |
1620 | } |
1474 | |
1621 | |
|
|
1622 | #if EV_USE_SIGNALFD |
|
|
1623 | if (ev_is_active (&sigfd_w)) |
|
|
1624 | { |
|
|
1625 | /*ev_ref (EV_A);*/ |
|
|
1626 | /*ev_io_stop (EV_A_ &sigfd_w);*/ |
|
|
1627 | |
|
|
1628 | close (sigfd); |
|
|
1629 | } |
|
|
1630 | #endif |
|
|
1631 | |
1475 | #if EV_USE_INOTIFY |
1632 | #if EV_USE_INOTIFY |
1476 | if (fs_fd >= 0) |
1633 | if (fs_fd >= 0) |
1477 | close (fs_fd); |
1634 | close (fs_fd); |
1478 | #endif |
1635 | #endif |
1479 | |
1636 | |
… | |
… | |
1502 | #if EV_IDLE_ENABLE |
1659 | #if EV_IDLE_ENABLE |
1503 | array_free (idle, [i]); |
1660 | array_free (idle, [i]); |
1504 | #endif |
1661 | #endif |
1505 | } |
1662 | } |
1506 | |
1663 | |
1507 | ev_free (anfds); anfdmax = 0; |
1664 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1508 | |
1665 | |
1509 | /* have to use the microsoft-never-gets-it-right macro */ |
1666 | /* have to use the microsoft-never-gets-it-right macro */ |
1510 | array_free (rfeed, EMPTY); |
1667 | array_free (rfeed, EMPTY); |
1511 | array_free (fdchange, EMPTY); |
1668 | array_free (fdchange, EMPTY); |
1512 | array_free (timer, EMPTY); |
1669 | array_free (timer, EMPTY); |
… | |
… | |
1579 | #if EV_MULTIPLICITY |
1736 | #if EV_MULTIPLICITY |
1580 | |
1737 | |
1581 | struct ev_loop * |
1738 | struct ev_loop * |
1582 | ev_loop_new (unsigned int flags) |
1739 | ev_loop_new (unsigned int flags) |
1583 | { |
1740 | { |
1584 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1741 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1585 | |
1742 | |
1586 | memset (loop, 0, sizeof (struct ev_loop)); |
1743 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1587 | |
|
|
1588 | loop_init (EV_A_ flags); |
1744 | loop_init (EV_A_ flags); |
1589 | |
1745 | |
1590 | if (ev_backend (EV_A)) |
1746 | if (ev_backend (EV_A)) |
1591 | return loop; |
1747 | return EV_A; |
1592 | |
1748 | |
1593 | return 0; |
1749 | return 0; |
1594 | } |
1750 | } |
1595 | |
1751 | |
1596 | void |
1752 | void |
… | |
… | |
1603 | void |
1759 | void |
1604 | ev_loop_fork (EV_P) |
1760 | ev_loop_fork (EV_P) |
1605 | { |
1761 | { |
1606 | postfork = 1; /* must be in line with ev_default_fork */ |
1762 | postfork = 1; /* must be in line with ev_default_fork */ |
1607 | } |
1763 | } |
|
|
1764 | #endif /* multiplicity */ |
1608 | |
1765 | |
1609 | #if EV_VERIFY |
1766 | #if EV_VERIFY |
1610 | static void noinline |
1767 | static void noinline |
1611 | verify_watcher (EV_P_ W w) |
1768 | verify_watcher (EV_P_ W w) |
1612 | { |
1769 | { |
… | |
… | |
1640 | verify_watcher (EV_A_ ws [cnt]); |
1797 | verify_watcher (EV_A_ ws [cnt]); |
1641 | } |
1798 | } |
1642 | } |
1799 | } |
1643 | #endif |
1800 | #endif |
1644 | |
1801 | |
|
|
1802 | #if EV_MINIMAL < 2 |
1645 | void |
1803 | void |
1646 | ev_loop_verify (EV_P) |
1804 | ev_loop_verify (EV_P) |
1647 | { |
1805 | { |
1648 | #if EV_VERIFY |
1806 | #if EV_VERIFY |
1649 | int i; |
1807 | int i; |
… | |
… | |
1698 | assert (checkmax >= checkcnt); |
1856 | assert (checkmax >= checkcnt); |
1699 | array_verify (EV_A_ (W *)checks, checkcnt); |
1857 | array_verify (EV_A_ (W *)checks, checkcnt); |
1700 | |
1858 | |
1701 | # if 0 |
1859 | # if 0 |
1702 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1860 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1703 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1861 | for (signum = EV_NSIG; signum--; ) if (signals [signum].gotsig) |
1704 | # endif |
1862 | # endif |
1705 | #endif |
1863 | #endif |
1706 | } |
1864 | } |
1707 | |
1865 | #endif |
1708 | #endif /* multiplicity */ |
|
|
1709 | |
1866 | |
1710 | #if EV_MULTIPLICITY |
1867 | #if EV_MULTIPLICITY |
1711 | struct ev_loop * |
1868 | struct ev_loop * |
1712 | ev_default_loop_init (unsigned int flags) |
1869 | ev_default_loop_init (unsigned int flags) |
1713 | #else |
1870 | #else |
… | |
… | |
1716 | #endif |
1873 | #endif |
1717 | { |
1874 | { |
1718 | if (!ev_default_loop_ptr) |
1875 | if (!ev_default_loop_ptr) |
1719 | { |
1876 | { |
1720 | #if EV_MULTIPLICITY |
1877 | #if EV_MULTIPLICITY |
1721 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1878 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1722 | #else |
1879 | #else |
1723 | ev_default_loop_ptr = 1; |
1880 | ev_default_loop_ptr = 1; |
1724 | #endif |
1881 | #endif |
1725 | |
1882 | |
1726 | loop_init (EV_A_ flags); |
1883 | loop_init (EV_A_ flags); |
… | |
… | |
1743 | |
1900 | |
1744 | void |
1901 | void |
1745 | ev_default_destroy (void) |
1902 | ev_default_destroy (void) |
1746 | { |
1903 | { |
1747 | #if EV_MULTIPLICITY |
1904 | #if EV_MULTIPLICITY |
1748 | struct ev_loop *loop = ev_default_loop_ptr; |
1905 | EV_P = ev_default_loop_ptr; |
1749 | #endif |
1906 | #endif |
1750 | |
1907 | |
1751 | ev_default_loop_ptr = 0; |
1908 | ev_default_loop_ptr = 0; |
1752 | |
1909 | |
1753 | #ifndef _WIN32 |
1910 | #ifndef _WIN32 |
… | |
… | |
1760 | |
1917 | |
1761 | void |
1918 | void |
1762 | ev_default_fork (void) |
1919 | ev_default_fork (void) |
1763 | { |
1920 | { |
1764 | #if EV_MULTIPLICITY |
1921 | #if EV_MULTIPLICITY |
1765 | struct ev_loop *loop = ev_default_loop_ptr; |
1922 | EV_P = ev_default_loop_ptr; |
1766 | #endif |
1923 | #endif |
1767 | |
1924 | |
1768 | postfork = 1; /* must be in line with ev_loop_fork */ |
1925 | postfork = 1; /* must be in line with ev_loop_fork */ |
1769 | } |
1926 | } |
1770 | |
1927 | |
… | |
… | |
1774 | ev_invoke (EV_P_ void *w, int revents) |
1931 | ev_invoke (EV_P_ void *w, int revents) |
1775 | { |
1932 | { |
1776 | EV_CB_INVOKE ((W)w, revents); |
1933 | EV_CB_INVOKE ((W)w, revents); |
1777 | } |
1934 | } |
1778 | |
1935 | |
1779 | inline_speed void |
1936 | unsigned int |
1780 | call_pending (EV_P) |
1937 | ev_pending_count (EV_P) |
|
|
1938 | { |
|
|
1939 | int pri; |
|
|
1940 | unsigned int count = 0; |
|
|
1941 | |
|
|
1942 | for (pri = NUMPRI; pri--; ) |
|
|
1943 | count += pendingcnt [pri]; |
|
|
1944 | |
|
|
1945 | return count; |
|
|
1946 | } |
|
|
1947 | |
|
|
1948 | void noinline |
|
|
1949 | ev_invoke_pending (EV_P) |
1781 | { |
1950 | { |
1782 | int pri; |
1951 | int pri; |
1783 | |
1952 | |
1784 | for (pri = NUMPRI; pri--; ) |
1953 | for (pri = NUMPRI; pri--; ) |
1785 | while (pendingcnt [pri]) |
1954 | while (pendingcnt [pri]) |
… | |
… | |
2020 | |
2189 | |
2021 | mn_now = ev_rt_now; |
2190 | mn_now = ev_rt_now; |
2022 | } |
2191 | } |
2023 | } |
2192 | } |
2024 | |
2193 | |
2025 | static int loop_done; |
|
|
2026 | |
|
|
2027 | void |
2194 | void |
2028 | ev_loop (EV_P_ int flags) |
2195 | ev_loop (EV_P_ int flags) |
2029 | { |
2196 | { |
|
|
2197 | #if EV_MINIMAL < 2 |
|
|
2198 | ++loop_depth; |
|
|
2199 | #endif |
|
|
2200 | |
|
|
2201 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2202 | |
2030 | loop_done = EVUNLOOP_CANCEL; |
2203 | loop_done = EVUNLOOP_CANCEL; |
2031 | |
2204 | |
2032 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2205 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2033 | |
2206 | |
2034 | do |
2207 | do |
2035 | { |
2208 | { |
2036 | #if EV_VERIFY >= 2 |
2209 | #if EV_VERIFY >= 2 |
2037 | ev_loop_verify (EV_A); |
2210 | ev_loop_verify (EV_A); |
… | |
… | |
2050 | /* we might have forked, so queue fork handlers */ |
2223 | /* we might have forked, so queue fork handlers */ |
2051 | if (expect_false (postfork)) |
2224 | if (expect_false (postfork)) |
2052 | if (forkcnt) |
2225 | if (forkcnt) |
2053 | { |
2226 | { |
2054 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2227 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2055 | call_pending (EV_A); |
2228 | EV_INVOKE_PENDING; |
2056 | } |
2229 | } |
2057 | #endif |
2230 | #endif |
2058 | |
2231 | |
2059 | /* queue prepare watchers (and execute them) */ |
2232 | /* queue prepare watchers (and execute them) */ |
2060 | if (expect_false (preparecnt)) |
2233 | if (expect_false (preparecnt)) |
2061 | { |
2234 | { |
2062 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2235 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2063 | call_pending (EV_A); |
2236 | EV_INVOKE_PENDING; |
2064 | } |
2237 | } |
|
|
2238 | |
|
|
2239 | if (expect_false (loop_done)) |
|
|
2240 | break; |
2065 | |
2241 | |
2066 | /* we might have forked, so reify kernel state if necessary */ |
2242 | /* we might have forked, so reify kernel state if necessary */ |
2067 | if (expect_false (postfork)) |
2243 | if (expect_false (postfork)) |
2068 | loop_fork (EV_A); |
2244 | loop_fork (EV_A); |
2069 | |
2245 | |
… | |
… | |
2075 | ev_tstamp waittime = 0.; |
2251 | ev_tstamp waittime = 0.; |
2076 | ev_tstamp sleeptime = 0.; |
2252 | ev_tstamp sleeptime = 0.; |
2077 | |
2253 | |
2078 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2254 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2079 | { |
2255 | { |
|
|
2256 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2257 | ev_tstamp prev_mn_now = mn_now; |
|
|
2258 | |
2080 | /* update time to cancel out callback processing overhead */ |
2259 | /* update time to cancel out callback processing overhead */ |
2081 | time_update (EV_A_ 1e100); |
2260 | time_update (EV_A_ 1e100); |
2082 | |
2261 | |
2083 | waittime = MAX_BLOCKTIME; |
2262 | waittime = MAX_BLOCKTIME; |
2084 | |
2263 | |
… | |
… | |
2094 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2273 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2095 | if (waittime > to) waittime = to; |
2274 | if (waittime > to) waittime = to; |
2096 | } |
2275 | } |
2097 | #endif |
2276 | #endif |
2098 | |
2277 | |
|
|
2278 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2099 | if (expect_false (waittime < timeout_blocktime)) |
2279 | if (expect_false (waittime < timeout_blocktime)) |
2100 | waittime = timeout_blocktime; |
2280 | waittime = timeout_blocktime; |
2101 | |
2281 | |
2102 | sleeptime = waittime - backend_fudge; |
2282 | /* extra check because io_blocktime is commonly 0 */ |
2103 | |
|
|
2104 | if (expect_true (sleeptime > io_blocktime)) |
2283 | if (expect_false (io_blocktime)) |
2105 | sleeptime = io_blocktime; |
|
|
2106 | |
|
|
2107 | if (sleeptime) |
|
|
2108 | { |
2284 | { |
|
|
2285 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2286 | |
|
|
2287 | if (sleeptime > waittime - backend_fudge) |
|
|
2288 | sleeptime = waittime - backend_fudge; |
|
|
2289 | |
|
|
2290 | if (expect_true (sleeptime > 0.)) |
|
|
2291 | { |
2109 | ev_sleep (sleeptime); |
2292 | ev_sleep (sleeptime); |
2110 | waittime -= sleeptime; |
2293 | waittime -= sleeptime; |
|
|
2294 | } |
2111 | } |
2295 | } |
2112 | } |
2296 | } |
2113 | |
2297 | |
|
|
2298 | #if EV_MINIMAL < 2 |
2114 | ++loop_count; |
2299 | ++loop_count; |
|
|
2300 | #endif |
|
|
2301 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2115 | backend_poll (EV_A_ waittime); |
2302 | backend_poll (EV_A_ waittime); |
|
|
2303 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2116 | |
2304 | |
2117 | /* update ev_rt_now, do magic */ |
2305 | /* update ev_rt_now, do magic */ |
2118 | time_update (EV_A_ waittime + sleeptime); |
2306 | time_update (EV_A_ waittime + sleeptime); |
2119 | } |
2307 | } |
2120 | |
2308 | |
… | |
… | |
2131 | |
2319 | |
2132 | /* queue check watchers, to be executed first */ |
2320 | /* queue check watchers, to be executed first */ |
2133 | if (expect_false (checkcnt)) |
2321 | if (expect_false (checkcnt)) |
2134 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2322 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2135 | |
2323 | |
2136 | call_pending (EV_A); |
2324 | EV_INVOKE_PENDING; |
2137 | } |
2325 | } |
2138 | while (expect_true ( |
2326 | while (expect_true ( |
2139 | activecnt |
2327 | activecnt |
2140 | && !loop_done |
2328 | && !loop_done |
2141 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2329 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2142 | )); |
2330 | )); |
2143 | |
2331 | |
2144 | if (loop_done == EVUNLOOP_ONE) |
2332 | if (loop_done == EVUNLOOP_ONE) |
2145 | loop_done = EVUNLOOP_CANCEL; |
2333 | loop_done = EVUNLOOP_CANCEL; |
|
|
2334 | |
|
|
2335 | #if EV_MINIMAL < 2 |
|
|
2336 | --loop_depth; |
|
|
2337 | #endif |
2146 | } |
2338 | } |
2147 | |
2339 | |
2148 | void |
2340 | void |
2149 | ev_unloop (EV_P_ int how) |
2341 | ev_unloop (EV_P_ int how) |
2150 | { |
2342 | { |
… | |
… | |
2242 | } |
2434 | } |
2243 | |
2435 | |
2244 | inline_size void |
2436 | inline_size void |
2245 | pri_adjust (EV_P_ W w) |
2437 | pri_adjust (EV_P_ W w) |
2246 | { |
2438 | { |
2247 | int pri = w->priority; |
2439 | int pri = ev_priority (w); |
2248 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2440 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2249 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2441 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2250 | w->priority = pri; |
2442 | ev_set_priority (w, pri); |
2251 | } |
2443 | } |
2252 | |
2444 | |
2253 | inline_speed void |
2445 | inline_speed void |
2254 | ev_start (EV_P_ W w, int active) |
2446 | ev_start (EV_P_ W w, int active) |
2255 | { |
2447 | { |
… | |
… | |
2282 | |
2474 | |
2283 | ev_start (EV_A_ (W)w, 1); |
2475 | ev_start (EV_A_ (W)w, 1); |
2284 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2476 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2285 | wlist_add (&anfds[fd].head, (WL)w); |
2477 | wlist_add (&anfds[fd].head, (WL)w); |
2286 | |
2478 | |
2287 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2479 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2288 | w->events &= ~EV__IOFDSET; |
2480 | w->events &= ~EV__IOFDSET; |
2289 | |
2481 | |
2290 | EV_FREQUENT_CHECK; |
2482 | EV_FREQUENT_CHECK; |
2291 | } |
2483 | } |
2292 | |
2484 | |
… | |
… | |
2386 | } |
2578 | } |
2387 | |
2579 | |
2388 | EV_FREQUENT_CHECK; |
2580 | EV_FREQUENT_CHECK; |
2389 | } |
2581 | } |
2390 | |
2582 | |
|
|
2583 | ev_tstamp |
|
|
2584 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2585 | { |
|
|
2586 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2587 | } |
|
|
2588 | |
2391 | #if EV_PERIODIC_ENABLE |
2589 | #if EV_PERIODIC_ENABLE |
2392 | void noinline |
2590 | void noinline |
2393 | ev_periodic_start (EV_P_ ev_periodic *w) |
2591 | ev_periodic_start (EV_P_ ev_periodic *w) |
2394 | { |
2592 | { |
2395 | if (expect_false (ev_is_active (w))) |
2593 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2462 | #endif |
2660 | #endif |
2463 | |
2661 | |
2464 | void noinline |
2662 | void noinline |
2465 | ev_signal_start (EV_P_ ev_signal *w) |
2663 | ev_signal_start (EV_P_ ev_signal *w) |
2466 | { |
2664 | { |
2467 | #if EV_MULTIPLICITY |
|
|
2468 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2469 | #endif |
|
|
2470 | if (expect_false (ev_is_active (w))) |
2665 | if (expect_false (ev_is_active (w))) |
2471 | return; |
2666 | return; |
2472 | |
2667 | |
2473 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2668 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2474 | |
2669 | |
2475 | evpipe_init (EV_A); |
2670 | #if EV_MULTIPLICITY |
|
|
2671 | assert (("libev: tried to attach to a signal from two different loops", |
|
|
2672 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2476 | |
2673 | |
2477 | EV_FREQUENT_CHECK; |
2674 | signals [w->signum - 1].loop = EV_A; |
|
|
2675 | #endif |
2478 | |
2676 | |
|
|
2677 | EV_FREQUENT_CHECK; |
|
|
2678 | |
|
|
2679 | #if EV_USE_SIGNALFD |
|
|
2680 | if (sigfd == -2) |
2479 | { |
2681 | { |
2480 | #ifndef _WIN32 |
2682 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2481 | sigset_t full, prev; |
2683 | if (sigfd < 0 && errno == EINVAL) |
2482 | sigfillset (&full); |
2684 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2483 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2484 | #endif |
|
|
2485 | |
2685 | |
2486 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2686 | if (sigfd >= 0) |
|
|
2687 | { |
|
|
2688 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2487 | |
2689 | |
2488 | #ifndef _WIN32 |
2690 | sigemptyset (&sigfd_set); |
2489 | sigprocmask (SIG_SETMASK, &prev, 0); |
2691 | |
2490 | #endif |
2692 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2693 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2694 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2695 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2696 | } |
2491 | } |
2697 | } |
|
|
2698 | |
|
|
2699 | if (sigfd >= 0) |
|
|
2700 | { |
|
|
2701 | /* TODO: check .head */ |
|
|
2702 | sigaddset (&sigfd_set, w->signum); |
|
|
2703 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2704 | |
|
|
2705 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2706 | } |
|
|
2707 | #endif |
2492 | |
2708 | |
2493 | ev_start (EV_A_ (W)w, 1); |
2709 | ev_start (EV_A_ (W)w, 1); |
2494 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2710 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2495 | |
2711 | |
2496 | if (!((WL)w)->next) |
2712 | if (!((WL)w)->next) |
|
|
2713 | # if EV_USE_SIGNALFD |
|
|
2714 | if (sigfd < 0) /*TODO*/ |
|
|
2715 | # endif |
2497 | { |
2716 | { |
2498 | #if _WIN32 |
2717 | # if _WIN32 |
2499 | signal (w->signum, ev_sighandler); |
2718 | signal (w->signum, ev_sighandler); |
2500 | #else |
2719 | # else |
2501 | struct sigaction sa; |
2720 | struct sigaction sa; |
|
|
2721 | |
|
|
2722 | evpipe_init (EV_A); |
|
|
2723 | |
2502 | sa.sa_handler = ev_sighandler; |
2724 | sa.sa_handler = ev_sighandler; |
2503 | sigfillset (&sa.sa_mask); |
2725 | sigfillset (&sa.sa_mask); |
2504 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2726 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2505 | sigaction (w->signum, &sa, 0); |
2727 | sigaction (w->signum, &sa, 0); |
|
|
2728 | |
|
|
2729 | sigemptyset (&sa.sa_mask); |
|
|
2730 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2731 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2506 | #endif |
2732 | #endif |
2507 | } |
2733 | } |
2508 | |
2734 | |
2509 | EV_FREQUENT_CHECK; |
2735 | EV_FREQUENT_CHECK; |
2510 | } |
2736 | } |
2511 | |
2737 | |
2512 | void noinline |
2738 | void noinline |
… | |
… | |
2520 | |
2746 | |
2521 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2747 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2522 | ev_stop (EV_A_ (W)w); |
2748 | ev_stop (EV_A_ (W)w); |
2523 | |
2749 | |
2524 | if (!signals [w->signum - 1].head) |
2750 | if (!signals [w->signum - 1].head) |
|
|
2751 | { |
|
|
2752 | #if EV_MULTIPLICITY |
|
|
2753 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2754 | #endif |
|
|
2755 | #if EV_USE_SIGNALFD |
|
|
2756 | if (sigfd >= 0) |
|
|
2757 | { |
|
|
2758 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
|
|
2759 | sigdelset (&sigfd_set, w->signum); |
|
|
2760 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2761 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
|
|
2762 | /*TODO: maybe unblock signal? */ |
|
|
2763 | } |
|
|
2764 | else |
|
|
2765 | #endif |
2525 | signal (w->signum, SIG_DFL); |
2766 | signal (w->signum, SIG_DFL); |
|
|
2767 | } |
2526 | |
2768 | |
2527 | EV_FREQUENT_CHECK; |
2769 | EV_FREQUENT_CHECK; |
2528 | } |
2770 | } |
2529 | |
2771 | |
2530 | void |
2772 | void |
… | |
… | |
3010 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3252 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3011 | { |
3253 | { |
3012 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3254 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3013 | |
3255 | |
3014 | { |
3256 | { |
3015 | struct ev_loop *loop = w->other; |
3257 | EV_P = w->other; |
3016 | |
3258 | |
3017 | while (fdchangecnt) |
3259 | while (fdchangecnt) |
3018 | { |
3260 | { |
3019 | fd_reify (EV_A); |
3261 | fd_reify (EV_A); |
3020 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3262 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
… | |
… | |
3028 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3270 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3029 | |
3271 | |
3030 | ev_embed_stop (EV_A_ w); |
3272 | ev_embed_stop (EV_A_ w); |
3031 | |
3273 | |
3032 | { |
3274 | { |
3033 | struct ev_loop *loop = w->other; |
3275 | EV_P = w->other; |
3034 | |
3276 | |
3035 | ev_loop_fork (EV_A); |
3277 | ev_loop_fork (EV_A); |
3036 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3278 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3037 | } |
3279 | } |
3038 | |
3280 | |
… | |
… | |
3052 | { |
3294 | { |
3053 | if (expect_false (ev_is_active (w))) |
3295 | if (expect_false (ev_is_active (w))) |
3054 | return; |
3296 | return; |
3055 | |
3297 | |
3056 | { |
3298 | { |
3057 | struct ev_loop *loop = w->other; |
3299 | EV_P = w->other; |
3058 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3300 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3059 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3301 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3060 | } |
3302 | } |
3061 | |
3303 | |
3062 | EV_FREQUENT_CHECK; |
3304 | EV_FREQUENT_CHECK; |
… | |
… | |
3333 | if (types & EV_CHECK) |
3575 | if (types & EV_CHECK) |
3334 | for (i = checkcnt; i--; ) |
3576 | for (i = checkcnt; i--; ) |
3335 | cb (EV_A_ EV_CHECK, checks [i]); |
3577 | cb (EV_A_ EV_CHECK, checks [i]); |
3336 | |
3578 | |
3337 | if (types & EV_SIGNAL) |
3579 | if (types & EV_SIGNAL) |
3338 | for (i = 0; i < signalmax; ++i) |
3580 | for (i = 0; i < EV_NSIG - 1; ++i) |
3339 | for (wl = signals [i].head; wl; ) |
3581 | for (wl = signals [i].head; wl; ) |
3340 | { |
3582 | { |
3341 | wn = wl->next; |
3583 | wn = wl->next; |
3342 | cb (EV_A_ EV_SIGNAL, wl); |
3584 | cb (EV_A_ EV_SIGNAL, wl); |
3343 | wl = wn; |
3585 | wl = wn; |