… | |
… | |
94 | # else |
94 | # else |
95 | # define EV_USE_PORT 0 |
95 | # define EV_USE_PORT 0 |
96 | # endif |
96 | # endif |
97 | # endif |
97 | # endif |
98 | |
98 | |
|
|
99 | # ifndef EV_USE_INOTIFY |
|
|
100 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
|
|
101 | # define EV_USE_INOTIFY 1 |
|
|
102 | # else |
|
|
103 | # define EV_USE_INOTIFY 0 |
|
|
104 | # endif |
|
|
105 | # endif |
|
|
106 | |
99 | #endif |
107 | #endif |
100 | |
108 | |
101 | #include <math.h> |
109 | #include <math.h> |
102 | #include <stdlib.h> |
110 | #include <stdlib.h> |
103 | #include <fcntl.h> |
111 | #include <fcntl.h> |
… | |
… | |
109 | #include <errno.h> |
117 | #include <errno.h> |
110 | #include <sys/types.h> |
118 | #include <sys/types.h> |
111 | #include <time.h> |
119 | #include <time.h> |
112 | |
120 | |
113 | #include <signal.h> |
121 | #include <signal.h> |
|
|
122 | |
|
|
123 | #ifdef EV_H |
|
|
124 | # include EV_H |
|
|
125 | #else |
|
|
126 | # include "ev.h" |
|
|
127 | #endif |
114 | |
128 | |
115 | #ifndef _WIN32 |
129 | #ifndef _WIN32 |
116 | # include <sys/time.h> |
130 | # include <sys/time.h> |
117 | # include <sys/wait.h> |
131 | # include <sys/wait.h> |
118 | # include <unistd.h> |
132 | # include <unistd.h> |
… | |
… | |
156 | |
170 | |
157 | #ifndef EV_USE_PORT |
171 | #ifndef EV_USE_PORT |
158 | # define EV_USE_PORT 0 |
172 | # define EV_USE_PORT 0 |
159 | #endif |
173 | #endif |
160 | |
174 | |
|
|
175 | #ifndef EV_USE_INOTIFY |
|
|
176 | # define EV_USE_INOTIFY 0 |
|
|
177 | #endif |
|
|
178 | |
161 | #ifndef EV_PID_HASHSIZE |
179 | #ifndef EV_PID_HASHSIZE |
162 | # if EV_MINIMAL |
180 | # if EV_MINIMAL |
163 | # define EV_PID_HASHSIZE 1 |
181 | # define EV_PID_HASHSIZE 1 |
164 | # else |
182 | # else |
165 | # define EV_PID_HASHSIZE 16 |
183 | # define EV_PID_HASHSIZE 16 |
166 | # endif |
184 | # endif |
167 | #endif |
185 | #endif |
168 | |
186 | |
|
|
187 | #ifndef EV_INOTIFY_HASHSIZE |
|
|
188 | # if EV_MINIMAL |
|
|
189 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
190 | # else |
|
|
191 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
192 | # endif |
|
|
193 | #endif |
|
|
194 | |
169 | /**/ |
195 | /**/ |
170 | |
196 | |
171 | #ifndef CLOCK_MONOTONIC |
197 | #ifndef CLOCK_MONOTONIC |
172 | # undef EV_USE_MONOTONIC |
198 | # undef EV_USE_MONOTONIC |
173 | # define EV_USE_MONOTONIC 0 |
199 | # define EV_USE_MONOTONIC 0 |
… | |
… | |
180 | |
206 | |
181 | #if EV_SELECT_IS_WINSOCKET |
207 | #if EV_SELECT_IS_WINSOCKET |
182 | # include <winsock.h> |
208 | # include <winsock.h> |
183 | #endif |
209 | #endif |
184 | |
210 | |
|
|
211 | #if !EV_STAT_ENABLE |
|
|
212 | # define EV_USE_INOTIFY 0 |
|
|
213 | #endif |
|
|
214 | |
|
|
215 | #if EV_USE_INOTIFY |
|
|
216 | # include <sys/inotify.h> |
|
|
217 | #endif |
|
|
218 | |
185 | /**/ |
219 | /**/ |
186 | |
220 | |
187 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
221 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
188 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
222 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
189 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
223 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
190 | |
|
|
191 | #ifdef EV_H |
|
|
192 | # include EV_H |
|
|
193 | #else |
|
|
194 | # include "ev.h" |
|
|
195 | #endif |
|
|
196 | |
224 | |
197 | #if __GNUC__ >= 3 |
225 | #if __GNUC__ >= 3 |
198 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
226 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
199 | # define inline_size static inline /* inline for codesize */ |
227 | # define inline_size static inline /* inline for codesize */ |
200 | # if EV_MINIMAL |
228 | # if EV_MINIMAL |
… | |
… | |
253 | perror (msg); |
281 | perror (msg); |
254 | abort (); |
282 | abort (); |
255 | } |
283 | } |
256 | } |
284 | } |
257 | |
285 | |
258 | static void *(*alloc)(void *ptr, size_t size) = realloc; |
286 | static void *(*alloc)(void *ptr, long size); |
259 | |
287 | |
260 | void |
288 | void |
261 | ev_set_allocator (void *(*cb)(void *ptr, size_t size)) |
289 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
262 | { |
290 | { |
263 | alloc = cb; |
291 | alloc = cb; |
264 | } |
292 | } |
265 | |
293 | |
266 | inline_speed void * |
294 | inline_speed void * |
267 | ev_realloc (void *ptr, size_t size) |
295 | ev_realloc (void *ptr, long size) |
268 | { |
296 | { |
269 | ptr = alloc (ptr, size); |
297 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
270 | |
298 | |
271 | if (!ptr && size) |
299 | if (!ptr && size) |
272 | { |
300 | { |
273 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", (long)size); |
301 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
274 | abort (); |
302 | abort (); |
275 | } |
303 | } |
276 | |
304 | |
277 | return ptr; |
305 | return ptr; |
278 | } |
306 | } |
… | |
… | |
295 | typedef struct |
323 | typedef struct |
296 | { |
324 | { |
297 | W w; |
325 | W w; |
298 | int events; |
326 | int events; |
299 | } ANPENDING; |
327 | } ANPENDING; |
|
|
328 | |
|
|
329 | #if EV_USE_INOTIFY |
|
|
330 | typedef struct |
|
|
331 | { |
|
|
332 | WL head; |
|
|
333 | } ANFS; |
|
|
334 | #endif |
300 | |
335 | |
301 | #if EV_MULTIPLICITY |
336 | #if EV_MULTIPLICITY |
302 | |
337 | |
303 | struct ev_loop |
338 | struct ev_loop |
304 | { |
339 | { |
… | |
… | |
361 | { |
396 | { |
362 | return ev_rt_now; |
397 | return ev_rt_now; |
363 | } |
398 | } |
364 | #endif |
399 | #endif |
365 | |
400 | |
366 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
401 | int inline_size |
|
|
402 | array_nextsize (int elem, int cur, int cnt) |
|
|
403 | { |
|
|
404 | int ncur = cur + 1; |
|
|
405 | |
|
|
406 | do |
|
|
407 | ncur <<= 1; |
|
|
408 | while (cnt > ncur); |
|
|
409 | |
|
|
410 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
|
|
411 | if (elem * ncur > 4096) |
|
|
412 | { |
|
|
413 | ncur *= elem; |
|
|
414 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
|
415 | ncur = ncur - sizeof (void *) * 4; |
|
|
416 | ncur /= elem; |
|
|
417 | } |
|
|
418 | |
|
|
419 | return ncur; |
|
|
420 | } |
|
|
421 | |
|
|
422 | inline_speed void * |
|
|
423 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
424 | { |
|
|
425 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
426 | return ev_realloc (base, elem * *cur); |
|
|
427 | } |
367 | |
428 | |
368 | #define array_needsize(type,base,cur,cnt,init) \ |
429 | #define array_needsize(type,base,cur,cnt,init) \ |
369 | if (expect_false ((cnt) > cur)) \ |
430 | if (expect_false ((cnt) > (cur))) \ |
370 | { \ |
431 | { \ |
371 | int newcnt = cur; \ |
432 | int ocur_ = (cur); \ |
372 | do \ |
433 | (base) = (type *)array_realloc \ |
373 | { \ |
434 | (sizeof (type), (base), &(cur), (cnt)); \ |
374 | newcnt = array_roundsize (type, newcnt << 1); \ |
435 | init ((base) + (ocur_), (cur) - ocur_); \ |
375 | } \ |
|
|
376 | while ((cnt) > newcnt); \ |
|
|
377 | \ |
|
|
378 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
|
379 | init (base + cur, newcnt - cur); \ |
|
|
380 | cur = newcnt; \ |
|
|
381 | } |
436 | } |
382 | |
437 | |
|
|
438 | #if 0 |
383 | #define array_slim(type,stem) \ |
439 | #define array_slim(type,stem) \ |
384 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
440 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
385 | { \ |
441 | { \ |
386 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
442 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
387 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
443 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
388 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
444 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
389 | } |
445 | } |
|
|
446 | #endif |
390 | |
447 | |
391 | #define array_free(stem, idx) \ |
448 | #define array_free(stem, idx) \ |
392 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
449 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
393 | |
450 | |
394 | /*****************************************************************************/ |
451 | /*****************************************************************************/ |
… | |
… | |
554 | static void noinline |
611 | static void noinline |
555 | fd_rearm_all (EV_P) |
612 | fd_rearm_all (EV_P) |
556 | { |
613 | { |
557 | int fd; |
614 | int fd; |
558 | |
615 | |
559 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
560 | for (fd = 0; fd < anfdmax; ++fd) |
616 | for (fd = 0; fd < anfdmax; ++fd) |
561 | if (anfds [fd].events) |
617 | if (anfds [fd].events) |
562 | { |
618 | { |
563 | anfds [fd].events = 0; |
619 | anfds [fd].events = 0; |
564 | fd_change (EV_A_ fd); |
620 | fd_change (EV_A_ fd); |
… | |
… | |
852 | ev_backend (EV_P) |
908 | ev_backend (EV_P) |
853 | { |
909 | { |
854 | return backend; |
910 | return backend; |
855 | } |
911 | } |
856 | |
912 | |
857 | static void |
913 | unsigned int |
|
|
914 | ev_loop_count (EV_P) |
|
|
915 | { |
|
|
916 | return loop_count; |
|
|
917 | } |
|
|
918 | |
|
|
919 | static void noinline |
858 | loop_init (EV_P_ unsigned int flags) |
920 | loop_init (EV_P_ unsigned int flags) |
859 | { |
921 | { |
860 | if (!backend) |
922 | if (!backend) |
861 | { |
923 | { |
862 | #if EV_USE_MONOTONIC |
924 | #if EV_USE_MONOTONIC |
… | |
… | |
870 | ev_rt_now = ev_time (); |
932 | ev_rt_now = ev_time (); |
871 | mn_now = get_clock (); |
933 | mn_now = get_clock (); |
872 | now_floor = mn_now; |
934 | now_floor = mn_now; |
873 | rtmn_diff = ev_rt_now - mn_now; |
935 | rtmn_diff = ev_rt_now - mn_now; |
874 | |
936 | |
|
|
937 | /* pid check not overridable via env */ |
|
|
938 | #ifndef _WIN32 |
|
|
939 | if (flags & EVFLAG_FORKCHECK) |
|
|
940 | curpid = getpid (); |
|
|
941 | #endif |
|
|
942 | |
875 | if (!(flags & EVFLAG_NOENV) |
943 | if (!(flags & EVFLAG_NOENV) |
876 | && !enable_secure () |
944 | && !enable_secure () |
877 | && getenv ("LIBEV_FLAGS")) |
945 | && getenv ("LIBEV_FLAGS")) |
878 | flags = atoi (getenv ("LIBEV_FLAGS")); |
946 | flags = atoi (getenv ("LIBEV_FLAGS")); |
879 | |
947 | |
880 | if (!(flags & 0x0000ffffUL)) |
948 | if (!(flags & 0x0000ffffUL)) |
881 | flags |= ev_recommended_backends (); |
949 | flags |= ev_recommended_backends (); |
882 | |
950 | |
883 | backend = 0; |
951 | backend = 0; |
|
|
952 | backend_fd = -1; |
|
|
953 | #if EV_USE_INOTIFY |
|
|
954 | fs_fd = -2; |
|
|
955 | #endif |
|
|
956 | |
884 | #if EV_USE_PORT |
957 | #if EV_USE_PORT |
885 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
958 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
886 | #endif |
959 | #endif |
887 | #if EV_USE_KQUEUE |
960 | #if EV_USE_KQUEUE |
888 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
961 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
900 | ev_init (&sigev, sigcb); |
973 | ev_init (&sigev, sigcb); |
901 | ev_set_priority (&sigev, EV_MAXPRI); |
974 | ev_set_priority (&sigev, EV_MAXPRI); |
902 | } |
975 | } |
903 | } |
976 | } |
904 | |
977 | |
905 | static void |
978 | static void noinline |
906 | loop_destroy (EV_P) |
979 | loop_destroy (EV_P) |
907 | { |
980 | { |
908 | int i; |
981 | int i; |
|
|
982 | |
|
|
983 | #if EV_USE_INOTIFY |
|
|
984 | if (fs_fd >= 0) |
|
|
985 | close (fs_fd); |
|
|
986 | #endif |
|
|
987 | |
|
|
988 | if (backend_fd >= 0) |
|
|
989 | close (backend_fd); |
909 | |
990 | |
910 | #if EV_USE_PORT |
991 | #if EV_USE_PORT |
911 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
992 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
912 | #endif |
993 | #endif |
913 | #if EV_USE_KQUEUE |
994 | #if EV_USE_KQUEUE |
… | |
… | |
937 | array_free (check, EMPTY0); |
1018 | array_free (check, EMPTY0); |
938 | |
1019 | |
939 | backend = 0; |
1020 | backend = 0; |
940 | } |
1021 | } |
941 | |
1022 | |
942 | static void |
1023 | void inline_size infy_fork (EV_P); |
|
|
1024 | |
|
|
1025 | void inline_size |
943 | loop_fork (EV_P) |
1026 | loop_fork (EV_P) |
944 | { |
1027 | { |
945 | #if EV_USE_PORT |
1028 | #if EV_USE_PORT |
946 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1029 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
947 | #endif |
1030 | #endif |
948 | #if EV_USE_KQUEUE |
1031 | #if EV_USE_KQUEUE |
949 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
1032 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
950 | #endif |
1033 | #endif |
951 | #if EV_USE_EPOLL |
1034 | #if EV_USE_EPOLL |
952 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
1035 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
|
|
1036 | #endif |
|
|
1037 | #if EV_USE_INOTIFY |
|
|
1038 | infy_fork (EV_A); |
953 | #endif |
1039 | #endif |
954 | |
1040 | |
955 | if (ev_is_active (&sigev)) |
1041 | if (ev_is_active (&sigev)) |
956 | { |
1042 | { |
957 | /* default loop */ |
1043 | /* default loop */ |
… | |
… | |
1097 | { |
1183 | { |
1098 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1184 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1099 | |
1185 | |
1100 | if (expect_true (p->w)) |
1186 | if (expect_true (p->w)) |
1101 | { |
1187 | { |
1102 | assert (("non-pending watcher on pending list", p->w->pending)); |
1188 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1103 | |
1189 | |
1104 | p->w->pending = 0; |
1190 | p->w->pending = 0; |
1105 | EV_CB_INVOKE (p->w, p->events); |
1191 | EV_CB_INVOKE (p->w, p->events); |
1106 | } |
1192 | } |
1107 | } |
1193 | } |
… | |
… | |
1112 | { |
1198 | { |
1113 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1199 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1114 | { |
1200 | { |
1115 | ev_timer *w = timers [0]; |
1201 | ev_timer *w = timers [0]; |
1116 | |
1202 | |
1117 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1203 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1118 | |
1204 | |
1119 | /* first reschedule or stop timer */ |
1205 | /* first reschedule or stop timer */ |
1120 | if (w->repeat) |
1206 | if (w->repeat) |
1121 | { |
1207 | { |
1122 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1208 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
… | |
… | |
1140 | { |
1226 | { |
1141 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1227 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1142 | { |
1228 | { |
1143 | ev_periodic *w = periodics [0]; |
1229 | ev_periodic *w = periodics [0]; |
1144 | |
1230 | |
1145 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1231 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1146 | |
1232 | |
1147 | /* first reschedule or stop timer */ |
1233 | /* first reschedule or stop timer */ |
1148 | if (w->reschedule_cb) |
1234 | if (w->reschedule_cb) |
1149 | { |
1235 | { |
1150 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1236 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
… | |
… | |
1217 | ev_tstamp odiff = rtmn_diff; |
1303 | ev_tstamp odiff = rtmn_diff; |
1218 | |
1304 | |
1219 | /* loop a few times, before making important decisions. |
1305 | /* loop a few times, before making important decisions. |
1220 | * on the choice of "4": one iteration isn't enough, |
1306 | * on the choice of "4": one iteration isn't enough, |
1221 | * in case we get preempted during the calls to |
1307 | * in case we get preempted during the calls to |
1222 | * ev_time and get_clock. a second call is almost guarenteed |
1308 | * ev_time and get_clock. a second call is almost guaranteed |
1223 | * to succeed in that case, though. and looping a few more times |
1309 | * to succeed in that case, though. and looping a few more times |
1224 | * doesn't hurt either as we only do this on time-jumps or |
1310 | * doesn't hurt either as we only do this on time-jumps or |
1225 | * in the unlikely event of getting preempted here. |
1311 | * in the unlikely event of having been preempted here. |
1226 | */ |
1312 | */ |
1227 | for (i = 4; --i; ) |
1313 | for (i = 4; --i; ) |
1228 | { |
1314 | { |
1229 | rtmn_diff = ev_rt_now - mn_now; |
1315 | rtmn_diff = ev_rt_now - mn_now; |
1230 | |
1316 | |
… | |
… | |
1252 | { |
1338 | { |
1253 | #if EV_PERIODIC_ENABLE |
1339 | #if EV_PERIODIC_ENABLE |
1254 | periodics_reschedule (EV_A); |
1340 | periodics_reschedule (EV_A); |
1255 | #endif |
1341 | #endif |
1256 | |
1342 | |
1257 | /* adjust timers. this is easy, as the offset is the same for all */ |
1343 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1258 | for (i = 0; i < timercnt; ++i) |
1344 | for (i = 0; i < timercnt; ++i) |
1259 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1345 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1260 | } |
1346 | } |
1261 | |
1347 | |
1262 | mn_now = ev_rt_now; |
1348 | mn_now = ev_rt_now; |
… | |
… | |
1282 | { |
1368 | { |
1283 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1369 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1284 | ? EVUNLOOP_ONE |
1370 | ? EVUNLOOP_ONE |
1285 | : EVUNLOOP_CANCEL; |
1371 | : EVUNLOOP_CANCEL; |
1286 | |
1372 | |
1287 | while (activecnt) |
1373 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
|
|
1374 | |
|
|
1375 | do |
1288 | { |
1376 | { |
1289 | /* we might have forked, so reify kernel state if necessary */ |
1377 | #ifndef _WIN32 |
|
|
1378 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1379 | if (expect_false (getpid () != curpid)) |
|
|
1380 | { |
|
|
1381 | curpid = getpid (); |
|
|
1382 | postfork = 1; |
|
|
1383 | } |
|
|
1384 | #endif |
|
|
1385 | |
1290 | #if EV_FORK_ENABLE |
1386 | #if EV_FORK_ENABLE |
|
|
1387 | /* we might have forked, so queue fork handlers */ |
1291 | if (expect_false (postfork)) |
1388 | if (expect_false (postfork)) |
1292 | if (forkcnt) |
1389 | if (forkcnt) |
1293 | { |
1390 | { |
1294 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1391 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1295 | call_pending (EV_A); |
1392 | call_pending (EV_A); |
1296 | } |
1393 | } |
1297 | #endif |
1394 | #endif |
1298 | |
1395 | |
1299 | /* queue check watchers (and execute them) */ |
1396 | /* queue check watchers (and execute them) */ |
1300 | if (expect_false (preparecnt)) |
1397 | if (expect_false (preparecnt)) |
1301 | { |
1398 | { |
1302 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1399 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1303 | call_pending (EV_A); |
1400 | call_pending (EV_A); |
1304 | } |
1401 | } |
1305 | |
1402 | |
|
|
1403 | if (expect_false (!activecnt)) |
|
|
1404 | break; |
|
|
1405 | |
1306 | /* we might have forked, so reify kernel state if necessary */ |
1406 | /* we might have forked, so reify kernel state if necessary */ |
1307 | if (expect_false (postfork)) |
1407 | if (expect_false (postfork)) |
1308 | loop_fork (EV_A); |
1408 | loop_fork (EV_A); |
1309 | |
1409 | |
1310 | /* update fd-related kernel structures */ |
1410 | /* update fd-related kernel structures */ |
1311 | fd_reify (EV_A); |
1411 | fd_reify (EV_A); |
1312 | |
1412 | |
1313 | /* calculate blocking time */ |
1413 | /* calculate blocking time */ |
1314 | { |
1414 | { |
1315 | double block; |
1415 | ev_tstamp block; |
1316 | |
1416 | |
1317 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1417 | if (expect_false (flags & EVLOOP_NONBLOCK || idlecnt || !activecnt)) |
1318 | block = 0.; /* do not block at all */ |
1418 | block = 0.; /* do not block at all */ |
1319 | else |
1419 | else |
1320 | { |
1420 | { |
1321 | /* update time to cancel out callback processing overhead */ |
1421 | /* update time to cancel out callback processing overhead */ |
1322 | #if EV_USE_MONOTONIC |
1422 | #if EV_USE_MONOTONIC |
… | |
… | |
1346 | #endif |
1446 | #endif |
1347 | |
1447 | |
1348 | if (expect_false (block < 0.)) block = 0.; |
1448 | if (expect_false (block < 0.)) block = 0.; |
1349 | } |
1449 | } |
1350 | |
1450 | |
|
|
1451 | ++loop_count; |
1351 | backend_poll (EV_A_ block); |
1452 | backend_poll (EV_A_ block); |
1352 | } |
1453 | } |
1353 | |
1454 | |
1354 | /* update ev_rt_now, do magic */ |
1455 | /* update ev_rt_now, do magic */ |
1355 | time_update (EV_A); |
1456 | time_update (EV_A); |
… | |
… | |
1368 | if (expect_false (checkcnt)) |
1469 | if (expect_false (checkcnt)) |
1369 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1470 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1370 | |
1471 | |
1371 | call_pending (EV_A); |
1472 | call_pending (EV_A); |
1372 | |
1473 | |
1373 | if (expect_false (loop_done)) |
|
|
1374 | break; |
|
|
1375 | } |
1474 | } |
|
|
1475 | while (expect_true (activecnt && !loop_done)); |
1376 | |
1476 | |
1377 | if (loop_done == EVUNLOOP_ONE) |
1477 | if (loop_done == EVUNLOOP_ONE) |
1378 | loop_done = EVUNLOOP_CANCEL; |
1478 | loop_done = EVUNLOOP_CANCEL; |
1379 | } |
1479 | } |
1380 | |
1480 | |
… | |
… | |
1482 | ev_start (EV_A_ (W)w, ++timercnt); |
1582 | ev_start (EV_A_ (W)w, ++timercnt); |
1483 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
1583 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
1484 | timers [timercnt - 1] = w; |
1584 | timers [timercnt - 1] = w; |
1485 | upheap ((WT *)timers, timercnt - 1); |
1585 | upheap ((WT *)timers, timercnt - 1); |
1486 | |
1586 | |
1487 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1587 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1488 | } |
1588 | } |
1489 | |
1589 | |
1490 | void |
1590 | void |
1491 | ev_timer_stop (EV_P_ ev_timer *w) |
1591 | ev_timer_stop (EV_P_ ev_timer *w) |
1492 | { |
1592 | { |
… | |
… | |
1494 | if (expect_false (!ev_is_active (w))) |
1594 | if (expect_false (!ev_is_active (w))) |
1495 | return; |
1595 | return; |
1496 | |
1596 | |
1497 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1597 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1498 | |
1598 | |
|
|
1599 | { |
|
|
1600 | int active = ((W)w)->active; |
|
|
1601 | |
1499 | if (expect_true (((W)w)->active < timercnt--)) |
1602 | if (expect_true (--active < --timercnt)) |
1500 | { |
1603 | { |
1501 | timers [((W)w)->active - 1] = timers [timercnt]; |
1604 | timers [active] = timers [timercnt]; |
1502 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1605 | adjustheap ((WT *)timers, timercnt, active); |
1503 | } |
1606 | } |
|
|
1607 | } |
1504 | |
1608 | |
1505 | ((WT)w)->at -= mn_now; |
1609 | ((WT)w)->at -= mn_now; |
1506 | |
1610 | |
1507 | ev_stop (EV_A_ (W)w); |
1611 | ev_stop (EV_A_ (W)w); |
1508 | } |
1612 | } |
… | |
… | |
1546 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1650 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1547 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1651 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1548 | periodics [periodiccnt - 1] = w; |
1652 | periodics [periodiccnt - 1] = w; |
1549 | upheap ((WT *)periodics, periodiccnt - 1); |
1653 | upheap ((WT *)periodics, periodiccnt - 1); |
1550 | |
1654 | |
1551 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1655 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1552 | } |
1656 | } |
1553 | |
1657 | |
1554 | void |
1658 | void |
1555 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1659 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1556 | { |
1660 | { |
… | |
… | |
1558 | if (expect_false (!ev_is_active (w))) |
1662 | if (expect_false (!ev_is_active (w))) |
1559 | return; |
1663 | return; |
1560 | |
1664 | |
1561 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1665 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1562 | |
1666 | |
|
|
1667 | { |
|
|
1668 | int active = ((W)w)->active; |
|
|
1669 | |
1563 | if (expect_true (((W)w)->active < periodiccnt--)) |
1670 | if (expect_true (--active < --periodiccnt)) |
1564 | { |
1671 | { |
1565 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1672 | periodics [active] = periodics [periodiccnt]; |
1566 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1673 | adjustheap ((WT *)periodics, periodiccnt, active); |
1567 | } |
1674 | } |
|
|
1675 | } |
1568 | |
1676 | |
1569 | ev_stop (EV_A_ (W)w); |
1677 | ev_stop (EV_A_ (W)w); |
1570 | } |
1678 | } |
1571 | |
1679 | |
1572 | void |
1680 | void |
… | |
… | |
1657 | # endif |
1765 | # endif |
1658 | |
1766 | |
1659 | #define DEF_STAT_INTERVAL 5.0074891 |
1767 | #define DEF_STAT_INTERVAL 5.0074891 |
1660 | #define MIN_STAT_INTERVAL 0.1074891 |
1768 | #define MIN_STAT_INTERVAL 0.1074891 |
1661 | |
1769 | |
|
|
1770 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
1771 | |
|
|
1772 | #if EV_USE_INOTIFY |
|
|
1773 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
1774 | |
|
|
1775 | static void noinline |
|
|
1776 | infy_add (EV_P_ ev_stat *w) |
|
|
1777 | { |
|
|
1778 | 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); |
|
|
1779 | |
|
|
1780 | if (w->wd < 0) |
|
|
1781 | { |
|
|
1782 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
1783 | |
|
|
1784 | /* monitor some parent directory for speedup hints */ |
|
|
1785 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
1786 | { |
|
|
1787 | char path [4096]; |
|
|
1788 | strcpy (path, w->path); |
|
|
1789 | |
|
|
1790 | do |
|
|
1791 | { |
|
|
1792 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
1793 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
1794 | |
|
|
1795 | char *pend = strrchr (path, '/'); |
|
|
1796 | |
|
|
1797 | if (!pend) |
|
|
1798 | break; /* whoops, no '/', complain to your admin */ |
|
|
1799 | |
|
|
1800 | *pend = 0; |
|
|
1801 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
1802 | } |
|
|
1803 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
1804 | } |
|
|
1805 | } |
|
|
1806 | else |
|
|
1807 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1808 | |
|
|
1809 | if (w->wd >= 0) |
|
|
1810 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
1811 | } |
|
|
1812 | |
|
|
1813 | static void noinline |
|
|
1814 | infy_del (EV_P_ ev_stat *w) |
|
|
1815 | { |
|
|
1816 | int slot; |
|
|
1817 | int wd = w->wd; |
|
|
1818 | |
|
|
1819 | if (wd < 0) |
|
|
1820 | return; |
|
|
1821 | |
|
|
1822 | w->wd = -2; |
|
|
1823 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
1824 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
1825 | |
|
|
1826 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
1827 | inotify_rm_watch (fs_fd, wd); |
|
|
1828 | } |
|
|
1829 | |
|
|
1830 | static void noinline |
|
|
1831 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
1832 | { |
|
|
1833 | if (slot < 0) |
|
|
1834 | /* overflow, need to check for all hahs slots */ |
|
|
1835 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1836 | infy_wd (EV_A_ slot, wd, ev); |
|
|
1837 | else |
|
|
1838 | { |
|
|
1839 | WL w_; |
|
|
1840 | |
|
|
1841 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
1842 | { |
|
|
1843 | ev_stat *w = (ev_stat *)w_; |
|
|
1844 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
1845 | |
|
|
1846 | if (w->wd == wd || wd == -1) |
|
|
1847 | { |
|
|
1848 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
1849 | { |
|
|
1850 | w->wd = -1; |
|
|
1851 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1852 | } |
|
|
1853 | |
|
|
1854 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
1855 | } |
|
|
1856 | } |
|
|
1857 | } |
|
|
1858 | } |
|
|
1859 | |
|
|
1860 | static void |
|
|
1861 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
1862 | { |
|
|
1863 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
1864 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
1865 | int ofs; |
|
|
1866 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
1867 | |
|
|
1868 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
1869 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
1870 | } |
|
|
1871 | |
|
|
1872 | void inline_size |
|
|
1873 | infy_init (EV_P) |
|
|
1874 | { |
|
|
1875 | if (fs_fd != -2) |
|
|
1876 | return; |
|
|
1877 | |
|
|
1878 | fs_fd = inotify_init (); |
|
|
1879 | |
|
|
1880 | if (fs_fd >= 0) |
|
|
1881 | { |
|
|
1882 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
1883 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
1884 | ev_io_start (EV_A_ &fs_w); |
|
|
1885 | } |
|
|
1886 | } |
|
|
1887 | |
|
|
1888 | void inline_size |
|
|
1889 | infy_fork (EV_P) |
|
|
1890 | { |
|
|
1891 | int slot; |
|
|
1892 | |
|
|
1893 | if (fs_fd < 0) |
|
|
1894 | return; |
|
|
1895 | |
|
|
1896 | close (fs_fd); |
|
|
1897 | fs_fd = inotify_init (); |
|
|
1898 | |
|
|
1899 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1900 | { |
|
|
1901 | WL w_ = fs_hash [slot].head; |
|
|
1902 | fs_hash [slot].head = 0; |
|
|
1903 | |
|
|
1904 | while (w_) |
|
|
1905 | { |
|
|
1906 | ev_stat *w = (ev_stat *)w_; |
|
|
1907 | w_ = w_->next; /* lets us add this watcher */ |
|
|
1908 | |
|
|
1909 | w->wd = -1; |
|
|
1910 | |
|
|
1911 | if (fs_fd >= 0) |
|
|
1912 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1913 | else |
|
|
1914 | ev_timer_start (EV_A_ &w->timer); |
|
|
1915 | } |
|
|
1916 | |
|
|
1917 | } |
|
|
1918 | } |
|
|
1919 | |
|
|
1920 | #endif |
|
|
1921 | |
1662 | void |
1922 | void |
1663 | ev_stat_stat (EV_P_ ev_stat *w) |
1923 | ev_stat_stat (EV_P_ ev_stat *w) |
1664 | { |
1924 | { |
1665 | if (lstat (w->path, &w->attr) < 0) |
1925 | if (lstat (w->path, &w->attr) < 0) |
1666 | w->attr.st_nlink = 0; |
1926 | w->attr.st_nlink = 0; |
1667 | else if (!w->attr.st_nlink) |
1927 | else if (!w->attr.st_nlink) |
1668 | w->attr.st_nlink = 1; |
1928 | w->attr.st_nlink = 1; |
1669 | } |
1929 | } |
1670 | |
1930 | |
1671 | static void |
1931 | static void noinline |
1672 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
1932 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
1673 | { |
1933 | { |
1674 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
1934 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
1675 | |
1935 | |
1676 | /* we copy this here each the time so that */ |
1936 | /* we copy this here each the time so that */ |
1677 | /* prev has the old value when the callback gets invoked */ |
1937 | /* prev has the old value when the callback gets invoked */ |
1678 | w->prev = w->attr; |
1938 | w->prev = w->attr; |
1679 | ev_stat_stat (EV_A_ w); |
1939 | ev_stat_stat (EV_A_ w); |
1680 | |
1940 | |
1681 | if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata))) |
1941 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
1942 | if ( |
|
|
1943 | w->prev.st_dev != w->attr.st_dev |
|
|
1944 | || w->prev.st_ino != w->attr.st_ino |
|
|
1945 | || w->prev.st_mode != w->attr.st_mode |
|
|
1946 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
1947 | || w->prev.st_uid != w->attr.st_uid |
|
|
1948 | || w->prev.st_gid != w->attr.st_gid |
|
|
1949 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
1950 | || w->prev.st_size != w->attr.st_size |
|
|
1951 | || w->prev.st_atime != w->attr.st_atime |
|
|
1952 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
1953 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
1954 | ) { |
|
|
1955 | #if EV_USE_INOTIFY |
|
|
1956 | infy_del (EV_A_ w); |
|
|
1957 | infy_add (EV_A_ w); |
|
|
1958 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
1959 | #endif |
|
|
1960 | |
1682 | ev_feed_event (EV_A_ w, EV_STAT); |
1961 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
1962 | } |
1683 | } |
1963 | } |
1684 | |
1964 | |
1685 | void |
1965 | void |
1686 | ev_stat_start (EV_P_ ev_stat *w) |
1966 | ev_stat_start (EV_P_ ev_stat *w) |
1687 | { |
1967 | { |
… | |
… | |
1697 | if (w->interval < MIN_STAT_INTERVAL) |
1977 | if (w->interval < MIN_STAT_INTERVAL) |
1698 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
1978 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
1699 | |
1979 | |
1700 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
1980 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
1701 | ev_set_priority (&w->timer, ev_priority (w)); |
1981 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
1982 | |
|
|
1983 | #if EV_USE_INOTIFY |
|
|
1984 | infy_init (EV_A); |
|
|
1985 | |
|
|
1986 | if (fs_fd >= 0) |
|
|
1987 | infy_add (EV_A_ w); |
|
|
1988 | else |
|
|
1989 | #endif |
1702 | ev_timer_start (EV_A_ &w->timer); |
1990 | ev_timer_start (EV_A_ &w->timer); |
1703 | |
1991 | |
1704 | ev_start (EV_A_ (W)w, 1); |
1992 | ev_start (EV_A_ (W)w, 1); |
1705 | } |
1993 | } |
1706 | |
1994 | |
1707 | void |
1995 | void |
… | |
… | |
1709 | { |
1997 | { |
1710 | ev_clear_pending (EV_A_ (W)w); |
1998 | ev_clear_pending (EV_A_ (W)w); |
1711 | if (expect_false (!ev_is_active (w))) |
1999 | if (expect_false (!ev_is_active (w))) |
1712 | return; |
2000 | return; |
1713 | |
2001 | |
|
|
2002 | #if EV_USE_INOTIFY |
|
|
2003 | infy_del (EV_A_ w); |
|
|
2004 | #endif |
1714 | ev_timer_stop (EV_A_ &w->timer); |
2005 | ev_timer_stop (EV_A_ &w->timer); |
1715 | |
2006 | |
1716 | ev_stop (EV_A_ (W)w); |
2007 | ev_stop (EV_A_ (W)w); |
1717 | } |
2008 | } |
1718 | #endif |
2009 | #endif |