… | |
… | |
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 | |
|
|
179 | #ifndef EV_PID_HASHSIZE |
|
|
180 | # if EV_MINIMAL |
|
|
181 | # define EV_PID_HASHSIZE 1 |
|
|
182 | # else |
|
|
183 | # define EV_PID_HASHSIZE 16 |
|
|
184 | # endif |
|
|
185 | #endif |
|
|
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 | |
161 | /**/ |
195 | /**/ |
162 | |
196 | |
163 | #ifndef CLOCK_MONOTONIC |
197 | #ifndef CLOCK_MONOTONIC |
164 | # undef EV_USE_MONOTONIC |
198 | # undef EV_USE_MONOTONIC |
165 | # define EV_USE_MONOTONIC 0 |
199 | # define EV_USE_MONOTONIC 0 |
… | |
… | |
172 | |
206 | |
173 | #if EV_SELECT_IS_WINSOCKET |
207 | #if EV_SELECT_IS_WINSOCKET |
174 | # include <winsock.h> |
208 | # include <winsock.h> |
175 | #endif |
209 | #endif |
176 | |
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 | |
177 | /**/ |
219 | /**/ |
178 | |
220 | |
179 | #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) */ |
180 | #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) */ |
181 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
|
|
182 | /*#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 */ |
183 | |
|
|
184 | #ifdef EV_H |
|
|
185 | # include EV_H |
|
|
186 | #else |
|
|
187 | # include "ev.h" |
|
|
188 | #endif |
|
|
189 | |
224 | |
190 | #if __GNUC__ >= 3 |
225 | #if __GNUC__ >= 3 |
191 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
226 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
192 | # define inline_size static inline /* inline for codesize */ |
227 | # define inline_size static inline /* inline for codesize */ |
193 | # if EV_MINIMAL |
228 | # if EV_MINIMAL |
… | |
… | |
254 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
289 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
255 | { |
290 | { |
256 | alloc = cb; |
291 | alloc = cb; |
257 | } |
292 | } |
258 | |
293 | |
259 | static void * |
294 | inline_speed void * |
260 | ev_realloc (void *ptr, long size) |
295 | ev_realloc (void *ptr, long size) |
261 | { |
296 | { |
262 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
297 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
263 | |
298 | |
264 | if (!ptr && size) |
299 | if (!ptr && size) |
… | |
… | |
288 | typedef struct |
323 | typedef struct |
289 | { |
324 | { |
290 | W w; |
325 | W w; |
291 | int events; |
326 | int events; |
292 | } ANPENDING; |
327 | } ANPENDING; |
|
|
328 | |
|
|
329 | #if EV_USE_INOTIFY |
|
|
330 | typedef struct |
|
|
331 | { |
|
|
332 | WL head; |
|
|
333 | } ANFS; |
|
|
334 | #endif |
293 | |
335 | |
294 | #if EV_MULTIPLICITY |
336 | #if EV_MULTIPLICITY |
295 | |
337 | |
296 | struct ev_loop |
338 | struct ev_loop |
297 | { |
339 | { |
… | |
… | |
709 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
751 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
710 | } |
752 | } |
711 | |
753 | |
712 | /*****************************************************************************/ |
754 | /*****************************************************************************/ |
713 | |
755 | |
714 | static ev_child *childs [PID_HASHSIZE]; |
756 | static ev_child *childs [EV_PID_HASHSIZE]; |
715 | |
757 | |
716 | #ifndef _WIN32 |
758 | #ifndef _WIN32 |
717 | |
759 | |
718 | static ev_signal childev; |
760 | static ev_signal childev; |
719 | |
761 | |
720 | void inline_speed |
762 | void inline_speed |
721 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
763 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
722 | { |
764 | { |
723 | ev_child *w; |
765 | ev_child *w; |
724 | |
766 | |
725 | for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
767 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
726 | if (w->pid == pid || !w->pid) |
768 | if (w->pid == pid || !w->pid) |
727 | { |
769 | { |
728 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
770 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
729 | w->rpid = pid; |
771 | w->rpid = pid; |
730 | w->rstatus = status; |
772 | w->rstatus = status; |
… | |
… | |
751 | /* make sure we are called again until all childs have been reaped */ |
793 | /* make sure we are called again until all childs have been reaped */ |
752 | /* we need to do it this way so that the callback gets called before we continue */ |
794 | /* we need to do it this way so that the callback gets called before we continue */ |
753 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
795 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
754 | |
796 | |
755 | child_reap (EV_A_ sw, pid, pid, status); |
797 | child_reap (EV_A_ sw, pid, pid, status); |
|
|
798 | if (EV_PID_HASHSIZE > 1) |
756 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
799 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
757 | } |
800 | } |
758 | |
801 | |
759 | #endif |
802 | #endif |
760 | |
803 | |
761 | /*****************************************************************************/ |
804 | /*****************************************************************************/ |
… | |
… | |
844 | ev_backend (EV_P) |
887 | ev_backend (EV_P) |
845 | { |
888 | { |
846 | return backend; |
889 | return backend; |
847 | } |
890 | } |
848 | |
891 | |
849 | static void |
892 | static void noinline |
850 | loop_init (EV_P_ unsigned int flags) |
893 | loop_init (EV_P_ unsigned int flags) |
851 | { |
894 | { |
852 | if (!backend) |
895 | if (!backend) |
853 | { |
896 | { |
854 | #if EV_USE_MONOTONIC |
897 | #if EV_USE_MONOTONIC |
… | |
… | |
871 | |
914 | |
872 | if (!(flags & 0x0000ffffUL)) |
915 | if (!(flags & 0x0000ffffUL)) |
873 | flags |= ev_recommended_backends (); |
916 | flags |= ev_recommended_backends (); |
874 | |
917 | |
875 | backend = 0; |
918 | backend = 0; |
|
|
919 | backend_fd = -1; |
|
|
920 | #if EV_USE_INOTIFY |
|
|
921 | fs_fd = -2; |
|
|
922 | #endif |
|
|
923 | |
876 | #if EV_USE_PORT |
924 | #if EV_USE_PORT |
877 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
925 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
878 | #endif |
926 | #endif |
879 | #if EV_USE_KQUEUE |
927 | #if EV_USE_KQUEUE |
880 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
928 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
892 | ev_init (&sigev, sigcb); |
940 | ev_init (&sigev, sigcb); |
893 | ev_set_priority (&sigev, EV_MAXPRI); |
941 | ev_set_priority (&sigev, EV_MAXPRI); |
894 | } |
942 | } |
895 | } |
943 | } |
896 | |
944 | |
897 | static void |
945 | static void noinline |
898 | loop_destroy (EV_P) |
946 | loop_destroy (EV_P) |
899 | { |
947 | { |
900 | int i; |
948 | int i; |
|
|
949 | |
|
|
950 | #if EV_USE_INOTIFY |
|
|
951 | if (fs_fd >= 0) |
|
|
952 | close (fs_fd); |
|
|
953 | #endif |
|
|
954 | |
|
|
955 | if (backend_fd >= 0) |
|
|
956 | close (backend_fd); |
901 | |
957 | |
902 | #if EV_USE_PORT |
958 | #if EV_USE_PORT |
903 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
959 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
904 | #endif |
960 | #endif |
905 | #if EV_USE_KQUEUE |
961 | #if EV_USE_KQUEUE |
… | |
… | |
929 | array_free (check, EMPTY0); |
985 | array_free (check, EMPTY0); |
930 | |
986 | |
931 | backend = 0; |
987 | backend = 0; |
932 | } |
988 | } |
933 | |
989 | |
934 | static void |
990 | void inline_size infy_fork (EV_P); |
|
|
991 | |
|
|
992 | void inline_size |
935 | loop_fork (EV_P) |
993 | loop_fork (EV_P) |
936 | { |
994 | { |
937 | #if EV_USE_PORT |
995 | #if EV_USE_PORT |
938 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
996 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
939 | #endif |
997 | #endif |
940 | #if EV_USE_KQUEUE |
998 | #if EV_USE_KQUEUE |
941 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
999 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
942 | #endif |
1000 | #endif |
943 | #if EV_USE_EPOLL |
1001 | #if EV_USE_EPOLL |
944 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
1002 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
|
|
1003 | #endif |
|
|
1004 | #if EV_USE_INOTIFY |
|
|
1005 | infy_fork (EV_A); |
945 | #endif |
1006 | #endif |
946 | |
1007 | |
947 | if (ev_is_active (&sigev)) |
1008 | if (ev_is_active (&sigev)) |
948 | { |
1009 | { |
949 | /* default loop */ |
1010 | /* default loop */ |
… | |
… | |
1089 | { |
1150 | { |
1090 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1151 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1091 | |
1152 | |
1092 | if (expect_true (p->w)) |
1153 | if (expect_true (p->w)) |
1093 | { |
1154 | { |
1094 | assert (("non-pending watcher on pending list", p->w->pending)); |
1155 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1095 | |
1156 | |
1096 | p->w->pending = 0; |
1157 | p->w->pending = 0; |
1097 | EV_CB_INVOKE (p->w, p->events); |
1158 | EV_CB_INVOKE (p->w, p->events); |
1098 | } |
1159 | } |
1099 | } |
1160 | } |
… | |
… | |
1104 | { |
1165 | { |
1105 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1166 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1106 | { |
1167 | { |
1107 | ev_timer *w = timers [0]; |
1168 | ev_timer *w = timers [0]; |
1108 | |
1169 | |
1109 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1170 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1110 | |
1171 | |
1111 | /* first reschedule or stop timer */ |
1172 | /* first reschedule or stop timer */ |
1112 | if (w->repeat) |
1173 | if (w->repeat) |
1113 | { |
1174 | { |
1114 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1175 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
… | |
… | |
1132 | { |
1193 | { |
1133 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1194 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1134 | { |
1195 | { |
1135 | ev_periodic *w = periodics [0]; |
1196 | ev_periodic *w = periodics [0]; |
1136 | |
1197 | |
1137 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1198 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1138 | |
1199 | |
1139 | /* first reschedule or stop timer */ |
1200 | /* first reschedule or stop timer */ |
1140 | if (w->reschedule_cb) |
1201 | if (w->reschedule_cb) |
1141 | { |
1202 | { |
1142 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1203 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
… | |
… | |
1474 | ev_start (EV_A_ (W)w, ++timercnt); |
1535 | ev_start (EV_A_ (W)w, ++timercnt); |
1475 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
1536 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
1476 | timers [timercnt - 1] = w; |
1537 | timers [timercnt - 1] = w; |
1477 | upheap ((WT *)timers, timercnt - 1); |
1538 | upheap ((WT *)timers, timercnt - 1); |
1478 | |
1539 | |
1479 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1540 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1480 | } |
1541 | } |
1481 | |
1542 | |
1482 | void |
1543 | void |
1483 | ev_timer_stop (EV_P_ ev_timer *w) |
1544 | ev_timer_stop (EV_P_ ev_timer *w) |
1484 | { |
1545 | { |
… | |
… | |
1486 | if (expect_false (!ev_is_active (w))) |
1547 | if (expect_false (!ev_is_active (w))) |
1487 | return; |
1548 | return; |
1488 | |
1549 | |
1489 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1550 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1490 | |
1551 | |
|
|
1552 | { |
|
|
1553 | int active = ((W)w)->active; |
|
|
1554 | |
1491 | if (expect_true (((W)w)->active < timercnt--)) |
1555 | if (expect_true (--active < --timercnt)) |
1492 | { |
1556 | { |
1493 | timers [((W)w)->active - 1] = timers [timercnt]; |
1557 | timers [active] = timers [timercnt]; |
1494 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1558 | adjustheap ((WT *)timers, timercnt, active); |
1495 | } |
1559 | } |
|
|
1560 | } |
1496 | |
1561 | |
1497 | ((WT)w)->at -= mn_now; |
1562 | ((WT)w)->at -= mn_now; |
1498 | |
1563 | |
1499 | ev_stop (EV_A_ (W)w); |
1564 | ev_stop (EV_A_ (W)w); |
1500 | } |
1565 | } |
… | |
… | |
1538 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1603 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1539 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1604 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1540 | periodics [periodiccnt - 1] = w; |
1605 | periodics [periodiccnt - 1] = w; |
1541 | upheap ((WT *)periodics, periodiccnt - 1); |
1606 | upheap ((WT *)periodics, periodiccnt - 1); |
1542 | |
1607 | |
1543 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1608 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1544 | } |
1609 | } |
1545 | |
1610 | |
1546 | void |
1611 | void |
1547 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1612 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1548 | { |
1613 | { |
… | |
… | |
1550 | if (expect_false (!ev_is_active (w))) |
1615 | if (expect_false (!ev_is_active (w))) |
1551 | return; |
1616 | return; |
1552 | |
1617 | |
1553 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1618 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1554 | |
1619 | |
|
|
1620 | { |
|
|
1621 | int active = ((W)w)->active; |
|
|
1622 | |
1555 | if (expect_true (((W)w)->active < periodiccnt--)) |
1623 | if (expect_true (--active < --periodiccnt)) |
1556 | { |
1624 | { |
1557 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1625 | periodics [active] = periodics [periodiccnt]; |
1558 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1626 | adjustheap ((WT *)periodics, periodiccnt, active); |
1559 | } |
1627 | } |
|
|
1628 | } |
1560 | |
1629 | |
1561 | ev_stop (EV_A_ (W)w); |
1630 | ev_stop (EV_A_ (W)w); |
1562 | } |
1631 | } |
1563 | |
1632 | |
1564 | void |
1633 | void |
… | |
… | |
1625 | #endif |
1694 | #endif |
1626 | if (expect_false (ev_is_active (w))) |
1695 | if (expect_false (ev_is_active (w))) |
1627 | return; |
1696 | return; |
1628 | |
1697 | |
1629 | ev_start (EV_A_ (W)w, 1); |
1698 | ev_start (EV_A_ (W)w, 1); |
1630 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1699 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1631 | } |
1700 | } |
1632 | |
1701 | |
1633 | void |
1702 | void |
1634 | ev_child_stop (EV_P_ ev_child *w) |
1703 | ev_child_stop (EV_P_ ev_child *w) |
1635 | { |
1704 | { |
1636 | ev_clear_pending (EV_A_ (W)w); |
1705 | ev_clear_pending (EV_A_ (W)w); |
1637 | if (expect_false (!ev_is_active (w))) |
1706 | if (expect_false (!ev_is_active (w))) |
1638 | return; |
1707 | return; |
1639 | |
1708 | |
1640 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1709 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1641 | ev_stop (EV_A_ (W)w); |
1710 | ev_stop (EV_A_ (W)w); |
1642 | } |
1711 | } |
1643 | |
1712 | |
1644 | #if EV_STAT_ENABLE |
1713 | #if EV_STAT_ENABLE |
1645 | |
1714 | |
… | |
… | |
1649 | # endif |
1718 | # endif |
1650 | |
1719 | |
1651 | #define DEF_STAT_INTERVAL 5.0074891 |
1720 | #define DEF_STAT_INTERVAL 5.0074891 |
1652 | #define MIN_STAT_INTERVAL 0.1074891 |
1721 | #define MIN_STAT_INTERVAL 0.1074891 |
1653 | |
1722 | |
|
|
1723 | void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
1724 | |
|
|
1725 | #if EV_USE_INOTIFY |
|
|
1726 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
1727 | |
|
|
1728 | static void noinline |
|
|
1729 | infy_add (EV_P_ ev_stat *w) |
|
|
1730 | { |
|
|
1731 | 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); |
|
|
1732 | |
|
|
1733 | if (w->wd < 0) |
|
|
1734 | { |
|
|
1735 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
1736 | |
|
|
1737 | /* monitor some parent directory for speedup hints */ |
|
|
1738 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
1739 | { |
|
|
1740 | char path [4096]; |
|
|
1741 | strcpy (path, w->path); |
|
|
1742 | |
|
|
1743 | do |
|
|
1744 | { |
|
|
1745 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
1746 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
1747 | |
|
|
1748 | char *pend = strrchr (path, '/'); |
|
|
1749 | |
|
|
1750 | if (!pend) |
|
|
1751 | break; /* whoops, no '/', complain to your admin */ |
|
|
1752 | |
|
|
1753 | *pend = 0; |
|
|
1754 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
1755 | } |
|
|
1756 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
1757 | } |
|
|
1758 | } |
|
|
1759 | else |
|
|
1760 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1761 | |
|
|
1762 | if (w->wd >= 0) |
|
|
1763 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
1764 | } |
|
|
1765 | |
|
|
1766 | static void noinline |
|
|
1767 | infy_del (EV_P_ ev_stat *w) |
|
|
1768 | { |
|
|
1769 | int slot; |
|
|
1770 | int wd = w->wd; |
|
|
1771 | |
|
|
1772 | if (wd < 0) |
|
|
1773 | return; |
|
|
1774 | |
|
|
1775 | w->wd = -2; |
|
|
1776 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
1777 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
1778 | |
|
|
1779 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
1780 | inotify_rm_watch (fs_fd, wd); |
|
|
1781 | } |
|
|
1782 | |
|
|
1783 | static void noinline |
|
|
1784 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
1785 | { |
|
|
1786 | if (slot < 0) |
|
|
1787 | /* overflow, need to check for all hahs slots */ |
|
|
1788 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1789 | infy_wd (EV_A_ slot, wd, ev); |
|
|
1790 | else |
|
|
1791 | { |
|
|
1792 | WL w_; |
|
|
1793 | |
|
|
1794 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
1795 | { |
|
|
1796 | ev_stat *w = (ev_stat *)w_; |
|
|
1797 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
1798 | |
|
|
1799 | if (w->wd == wd || wd == -1) |
|
|
1800 | { |
|
|
1801 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
1802 | { |
|
|
1803 | w->wd = -1; |
|
|
1804 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1805 | } |
|
|
1806 | |
|
|
1807 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
1808 | } |
|
|
1809 | } |
|
|
1810 | } |
|
|
1811 | } |
|
|
1812 | |
|
|
1813 | static void |
|
|
1814 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
1815 | { |
|
|
1816 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
1817 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
1818 | int ofs; |
|
|
1819 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
1820 | |
|
|
1821 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
1822 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
1823 | } |
|
|
1824 | |
|
|
1825 | void inline_size |
|
|
1826 | infy_init (EV_P) |
|
|
1827 | { |
|
|
1828 | if (fs_fd != -2) |
|
|
1829 | return; |
|
|
1830 | |
|
|
1831 | fs_fd = inotify_init (); |
|
|
1832 | |
|
|
1833 | if (fs_fd >= 0) |
|
|
1834 | { |
|
|
1835 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
1836 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
1837 | ev_io_start (EV_A_ &fs_w); |
|
|
1838 | } |
|
|
1839 | } |
|
|
1840 | |
|
|
1841 | void inline_size |
|
|
1842 | infy_fork (EV_P) |
|
|
1843 | { |
|
|
1844 | int slot; |
|
|
1845 | |
|
|
1846 | if (fs_fd < 0) |
|
|
1847 | return; |
|
|
1848 | |
|
|
1849 | close (fs_fd); |
|
|
1850 | fs_fd = inotify_init (); |
|
|
1851 | |
|
|
1852 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1853 | { |
|
|
1854 | WL w_ = fs_hash [slot].head; |
|
|
1855 | fs_hash [slot].head = 0; |
|
|
1856 | |
|
|
1857 | while (w_) |
|
|
1858 | { |
|
|
1859 | ev_stat *w = (ev_stat *)w_; |
|
|
1860 | w_ = w_->next; /* lets us add this watcher */ |
|
|
1861 | |
|
|
1862 | w->wd = -1; |
|
|
1863 | |
|
|
1864 | if (fs_fd >= 0) |
|
|
1865 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1866 | else |
|
|
1867 | ev_timer_start (EV_A_ &w->timer); |
|
|
1868 | } |
|
|
1869 | |
|
|
1870 | } |
|
|
1871 | } |
|
|
1872 | |
|
|
1873 | #endif |
|
|
1874 | |
1654 | void |
1875 | void |
1655 | ev_stat_stat (EV_P_ ev_stat *w) |
1876 | ev_stat_stat (EV_P_ ev_stat *w) |
1656 | { |
1877 | { |
1657 | if (lstat (w->path, &w->attr) < 0) |
1878 | if (lstat (w->path, &w->attr) < 0) |
1658 | w->attr.st_nlink = 0; |
1879 | w->attr.st_nlink = 0; |
1659 | else if (!w->attr.st_nlink) |
1880 | else if (!w->attr.st_nlink) |
1660 | w->attr.st_nlink = 1; |
1881 | w->attr.st_nlink = 1; |
1661 | } |
1882 | } |
1662 | |
1883 | |
1663 | static void |
1884 | void noinline |
1664 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
1885 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
1665 | { |
1886 | { |
1666 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
1887 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
1667 | |
1888 | |
1668 | /* we copy this here each the time so that */ |
1889 | /* we copy this here each the time so that */ |
1669 | /* prev has the old value when the callback gets invoked */ |
1890 | /* prev has the old value when the callback gets invoked */ |
1670 | w->prev = w->attr; |
1891 | w->prev = w->attr; |
1671 | ev_stat_stat (EV_A_ w); |
1892 | ev_stat_stat (EV_A_ w); |
1672 | |
1893 | |
1673 | if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata))) |
1894 | if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata))) |
|
|
1895 | { |
|
|
1896 | #if EV_USE_INOTIFY |
|
|
1897 | infy_del (EV_A_ w); |
|
|
1898 | infy_add (EV_A_ w); |
|
|
1899 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
1900 | #endif |
|
|
1901 | |
1674 | ev_feed_event (EV_A_ w, EV_STAT); |
1902 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
1903 | } |
1675 | } |
1904 | } |
1676 | |
1905 | |
1677 | void |
1906 | void |
1678 | ev_stat_start (EV_P_ ev_stat *w) |
1907 | ev_stat_start (EV_P_ ev_stat *w) |
1679 | { |
1908 | { |
… | |
… | |
1689 | if (w->interval < MIN_STAT_INTERVAL) |
1918 | if (w->interval < MIN_STAT_INTERVAL) |
1690 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
1919 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
1691 | |
1920 | |
1692 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
1921 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
1693 | ev_set_priority (&w->timer, ev_priority (w)); |
1922 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
1923 | |
|
|
1924 | #if EV_USE_INOTIFY |
|
|
1925 | infy_init (EV_A); |
|
|
1926 | |
|
|
1927 | if (fs_fd >= 0) |
|
|
1928 | infy_add (EV_A_ w); |
|
|
1929 | else |
|
|
1930 | #endif |
1694 | ev_timer_start (EV_A_ &w->timer); |
1931 | ev_timer_start (EV_A_ &w->timer); |
1695 | |
1932 | |
1696 | ev_start (EV_A_ (W)w, 1); |
1933 | ev_start (EV_A_ (W)w, 1); |
1697 | } |
1934 | } |
1698 | |
1935 | |
1699 | void |
1936 | void |
… | |
… | |
1701 | { |
1938 | { |
1702 | ev_clear_pending (EV_A_ (W)w); |
1939 | ev_clear_pending (EV_A_ (W)w); |
1703 | if (expect_false (!ev_is_active (w))) |
1940 | if (expect_false (!ev_is_active (w))) |
1704 | return; |
1941 | return; |
1705 | |
1942 | |
|
|
1943 | #if EV_USE_INOTIFY |
|
|
1944 | infy_del (EV_A_ w); |
|
|
1945 | #endif |
1706 | ev_timer_stop (EV_A_ &w->timer); |
1946 | ev_timer_stop (EV_A_ &w->timer); |
1707 | |
1947 | |
1708 | ev_stop (EV_A_ (W)w); |
1948 | ev_stop (EV_A_ (W)w); |
1709 | } |
1949 | } |
1710 | #endif |
1950 | #endif |