1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
110 | # define EV_USE_EPOLL 0 |
110 | # define EV_USE_EPOLL 0 |
111 | # endif |
111 | # endif |
112 | # endif |
112 | # endif |
113 | |
113 | |
114 | # ifndef EV_USE_KQUEUE |
114 | # ifndef EV_USE_KQUEUE |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
116 | # define EV_USE_KQUEUE 1 |
116 | # define EV_USE_KQUEUE 1 |
117 | # else |
117 | # else |
118 | # define EV_USE_KQUEUE 0 |
118 | # define EV_USE_KQUEUE 0 |
119 | # endif |
119 | # endif |
120 | # endif |
120 | # endif |
… | |
… | |
153 | |
153 | |
154 | #endif |
154 | #endif |
155 | |
155 | |
156 | #include <math.h> |
156 | #include <math.h> |
157 | #include <stdlib.h> |
157 | #include <stdlib.h> |
|
|
158 | #include <string.h> |
158 | #include <fcntl.h> |
159 | #include <fcntl.h> |
159 | #include <stddef.h> |
160 | #include <stddef.h> |
160 | |
161 | |
161 | #include <stdio.h> |
162 | #include <stdio.h> |
162 | |
163 | |
163 | #include <assert.h> |
164 | #include <assert.h> |
164 | #include <errno.h> |
165 | #include <errno.h> |
165 | #include <sys/types.h> |
166 | #include <sys/types.h> |
166 | #include <time.h> |
167 | #include <time.h> |
|
|
168 | #include <limits.h> |
167 | |
169 | |
168 | #include <signal.h> |
170 | #include <signal.h> |
169 | |
171 | |
170 | #ifdef EV_H |
172 | #ifdef EV_H |
171 | # include EV_H |
173 | # include EV_H |
… | |
… | |
343 | # endif |
345 | # endif |
344 | #endif |
346 | #endif |
345 | |
347 | |
346 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
348 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
347 | |
349 | |
|
|
350 | #ifdef _AIX |
|
|
351 | /* AIX has a completely broken poll.h header */ |
|
|
352 | # undef EV_USE_POLL |
|
|
353 | # define EV_USE_POLL 0 |
|
|
354 | #endif |
|
|
355 | |
348 | #ifndef CLOCK_MONOTONIC |
356 | #ifndef CLOCK_MONOTONIC |
349 | # undef EV_USE_MONOTONIC |
357 | # undef EV_USE_MONOTONIC |
350 | # define EV_USE_MONOTONIC 0 |
358 | # define EV_USE_MONOTONIC 0 |
351 | #endif |
359 | #endif |
352 | |
360 | |
… | |
… | |
395 | # endif |
403 | # endif |
396 | # endif |
404 | # endif |
397 | # ifdef __cplusplus |
405 | # ifdef __cplusplus |
398 | extern "C" { |
406 | extern "C" { |
399 | # endif |
407 | # endif |
400 | int eventfd (unsigned int initval, int flags); |
408 | int (eventfd) (unsigned int initval, int flags); |
401 | # ifdef __cplusplus |
409 | # ifdef __cplusplus |
402 | } |
410 | } |
403 | # endif |
411 | # endif |
404 | #endif |
412 | #endif |
405 | |
413 | |
… | |
… | |
504 | |
512 | |
505 | #ifndef EV_FD_TO_WIN32_HANDLE |
513 | #ifndef EV_FD_TO_WIN32_HANDLE |
506 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
514 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
507 | #endif |
515 | #endif |
508 | #ifndef EV_WIN32_HANDLE_TO_FD |
516 | #ifndef EV_WIN32_HANDLE_TO_FD |
509 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0) |
517 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
510 | #endif |
518 | #endif |
511 | #ifndef EV_WIN32_CLOSE_FD |
519 | #ifndef EV_WIN32_CLOSE_FD |
512 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
520 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
513 | #endif |
521 | #endif |
514 | |
522 | |
… | |
… | |
963 | /* check whether the given fd is atcually valid, for error recovery */ |
971 | /* check whether the given fd is atcually valid, for error recovery */ |
964 | inline_size int |
972 | inline_size int |
965 | fd_valid (int fd) |
973 | fd_valid (int fd) |
966 | { |
974 | { |
967 | #ifdef _WIN32 |
975 | #ifdef _WIN32 |
968 | return _get_osfhandle (fd) != -1; |
976 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
969 | #else |
977 | #else |
970 | return fcntl (fd, F_GETFD) != -1; |
978 | return fcntl (fd, F_GETFD) != -1; |
971 | #endif |
979 | #endif |
972 | } |
980 | } |
973 | |
981 | |
… | |
… | |
1178 | inline_speed void |
1186 | inline_speed void |
1179 | fd_intern (int fd) |
1187 | fd_intern (int fd) |
1180 | { |
1188 | { |
1181 | #ifdef _WIN32 |
1189 | #ifdef _WIN32 |
1182 | unsigned long arg = 1; |
1190 | unsigned long arg = 1; |
1183 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1191 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
1184 | #else |
1192 | #else |
1185 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1193 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1186 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1194 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1187 | #endif |
1195 | #endif |
1188 | } |
1196 | } |
… | |
… | |
1293 | { |
1301 | { |
1294 | #if EV_MULTIPLICITY |
1302 | #if EV_MULTIPLICITY |
1295 | EV_P = signals [signum - 1].loop; |
1303 | EV_P = signals [signum - 1].loop; |
1296 | #endif |
1304 | #endif |
1297 | |
1305 | |
1298 | #if _WIN32 |
1306 | #ifdef _WIN32 |
1299 | signal (signum, ev_sighandler); |
1307 | signal (signum, ev_sighandler); |
1300 | #endif |
1308 | #endif |
1301 | |
1309 | |
1302 | signals [signum - 1].pending = 1; |
1310 | signals [signum - 1].pending = 1; |
1303 | evpipe_write (EV_A_ &sig_pending); |
1311 | evpipe_write (EV_A_ &sig_pending); |
… | |
… | |
1604 | #endif |
1612 | #endif |
1605 | #if EV_USE_INOTIFY |
1613 | #if EV_USE_INOTIFY |
1606 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1614 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1607 | #endif |
1615 | #endif |
1608 | #if EV_USE_SIGNALFD |
1616 | #if EV_USE_SIGNALFD |
1609 | sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; |
1617 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1610 | #endif |
1618 | #endif |
1611 | |
1619 | |
1612 | if (!(flags & 0x0000ffffU)) |
1620 | if (!(flags & 0x0000ffffU)) |
1613 | flags |= ev_recommended_backends (); |
1621 | flags |= ev_recommended_backends (); |
1614 | |
1622 | |
… | |
… | |
2156 | ANHE_at_cache (*he); |
2164 | ANHE_at_cache (*he); |
2157 | } |
2165 | } |
2158 | } |
2166 | } |
2159 | |
2167 | |
2160 | /* fetch new monotonic and realtime times from the kernel */ |
2168 | /* fetch new monotonic and realtime times from the kernel */ |
2161 | /* also detetc if there was a timejump, and act accordingly */ |
2169 | /* also detect if there was a timejump, and act accordingly */ |
2162 | inline_speed void |
2170 | inline_speed void |
2163 | time_update (EV_P_ ev_tstamp max_block) |
2171 | time_update (EV_P_ ev_tstamp max_block) |
2164 | { |
2172 | { |
2165 | #if EV_USE_MONOTONIC |
2173 | #if EV_USE_MONOTONIC |
2166 | if (expect_true (have_monotonic)) |
2174 | if (expect_true (have_monotonic)) |
… | |
… | |
2500 | |
2508 | |
2501 | if (expect_false (ev_is_active (w))) |
2509 | if (expect_false (ev_is_active (w))) |
2502 | return; |
2510 | return; |
2503 | |
2511 | |
2504 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2512 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2505 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2513 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2506 | |
2514 | |
2507 | EV_FREQUENT_CHECK; |
2515 | EV_FREQUENT_CHECK; |
2508 | |
2516 | |
2509 | ev_start (EV_A_ (W)w, 1); |
2517 | ev_start (EV_A_ (W)w, 1); |
2510 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2518 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
… | |
… | |
2580 | timers [active] = timers [timercnt + HEAP0]; |
2588 | timers [active] = timers [timercnt + HEAP0]; |
2581 | adjustheap (timers, timercnt, active); |
2589 | adjustheap (timers, timercnt, active); |
2582 | } |
2590 | } |
2583 | } |
2591 | } |
2584 | |
2592 | |
2585 | EV_FREQUENT_CHECK; |
|
|
2586 | |
|
|
2587 | ev_at (w) -= mn_now; |
2593 | ev_at (w) -= mn_now; |
2588 | |
2594 | |
2589 | ev_stop (EV_A_ (W)w); |
2595 | ev_stop (EV_A_ (W)w); |
|
|
2596 | |
|
|
2597 | EV_FREQUENT_CHECK; |
2590 | } |
2598 | } |
2591 | |
2599 | |
2592 | void noinline |
2600 | void noinline |
2593 | ev_timer_again (EV_P_ ev_timer *w) |
2601 | ev_timer_again (EV_P_ ev_timer *w) |
2594 | { |
2602 | { |
… | |
… | |
2673 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2681 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2674 | adjustheap (periodics, periodiccnt, active); |
2682 | adjustheap (periodics, periodiccnt, active); |
2675 | } |
2683 | } |
2676 | } |
2684 | } |
2677 | |
2685 | |
2678 | EV_FREQUENT_CHECK; |
|
|
2679 | |
|
|
2680 | ev_stop (EV_A_ (W)w); |
2686 | ev_stop (EV_A_ (W)w); |
|
|
2687 | |
|
|
2688 | EV_FREQUENT_CHECK; |
2681 | } |
2689 | } |
2682 | |
2690 | |
2683 | void noinline |
2691 | void noinline |
2684 | ev_periodic_again (EV_P_ ev_periodic *w) |
2692 | ev_periodic_again (EV_P_ ev_periodic *w) |
2685 | { |
2693 | { |
… | |
… | |
2746 | if (!((WL)w)->next) |
2754 | if (!((WL)w)->next) |
2747 | # if EV_USE_SIGNALFD |
2755 | # if EV_USE_SIGNALFD |
2748 | if (sigfd < 0) /*TODO*/ |
2756 | if (sigfd < 0) /*TODO*/ |
2749 | # endif |
2757 | # endif |
2750 | { |
2758 | { |
2751 | # if _WIN32 |
2759 | # ifdef _WIN32 |
2752 | evpipe_init (EV_A); |
2760 | evpipe_init (EV_A); |
2753 | |
2761 | |
2754 | signal (w->signum, ev_sighandler); |
2762 | signal (w->signum, ev_sighandler); |
2755 | # else |
2763 | # else |
2756 | struct sigaction sa; |
2764 | struct sigaction sa; |
… | |
… | |
2789 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
2797 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
2790 | #endif |
2798 | #endif |
2791 | #if EV_USE_SIGNALFD |
2799 | #if EV_USE_SIGNALFD |
2792 | if (sigfd >= 0) |
2800 | if (sigfd >= 0) |
2793 | { |
2801 | { |
2794 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
2802 | sigset_t ss; |
|
|
2803 | |
|
|
2804 | sigemptyset (&ss); |
|
|
2805 | sigaddset (&ss, w->signum); |
2795 | sigdelset (&sigfd_set, w->signum); |
2806 | sigdelset (&sigfd_set, w->signum); |
|
|
2807 | |
2796 | signalfd (sigfd, &sigfd_set, 0); |
2808 | signalfd (sigfd, &sigfd_set, 0); |
2797 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
2809 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
2798 | /*TODO: maybe unblock signal? */ |
|
|
2799 | } |
2810 | } |
2800 | else |
2811 | else |
2801 | #endif |
2812 | #endif |
2802 | signal (w->signum, SIG_DFL); |
2813 | signal (w->signum, SIG_DFL); |
2803 | } |
2814 | } |
… | |
… | |
2849 | #define MIN_STAT_INTERVAL 0.1074891 |
2860 | #define MIN_STAT_INTERVAL 0.1074891 |
2850 | |
2861 | |
2851 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2862 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2852 | |
2863 | |
2853 | #if EV_USE_INOTIFY |
2864 | #if EV_USE_INOTIFY |
2854 | # define EV_INOTIFY_BUFSIZE 8192 |
2865 | |
|
|
2866 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2867 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2855 | |
2868 | |
2856 | static void noinline |
2869 | static void noinline |
2857 | infy_add (EV_P_ ev_stat *w) |
2870 | infy_add (EV_P_ ev_stat *w) |
2858 | { |
2871 | { |
2859 | 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); |
2872 | 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); |
2860 | |
2873 | |
2861 | if (w->wd < 0) |
2874 | if (w->wd >= 0) |
|
|
2875 | { |
|
|
2876 | struct statfs sfs; |
|
|
2877 | |
|
|
2878 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2879 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2880 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2881 | |
|
|
2882 | if (!fs_2625) |
|
|
2883 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2884 | else if (!statfs (w->path, &sfs) |
|
|
2885 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2886 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2887 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2888 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2889 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2890 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2891 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2892 | else |
|
|
2893 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2862 | { |
2894 | } |
|
|
2895 | else |
|
|
2896 | { |
|
|
2897 | /* can't use inotify, continue to stat */ |
2863 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2898 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2864 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2865 | |
2899 | |
2866 | /* monitor some parent directory for speedup hints */ |
2900 | /* if path is not there, monitor some parent directory for speedup hints */ |
2867 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2901 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2868 | /* but an efficiency issue only */ |
2902 | /* but an efficiency issue only */ |
2869 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2903 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2870 | { |
2904 | { |
2871 | char path [4096]; |
2905 | char path [4096]; |
… | |
… | |
2887 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2921 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2888 | } |
2922 | } |
2889 | } |
2923 | } |
2890 | |
2924 | |
2891 | if (w->wd >= 0) |
2925 | if (w->wd >= 0) |
2892 | { |
|
|
2893 | struct statfs sfs; |
|
|
2894 | |
|
|
2895 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2926 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2896 | |
2927 | |
2897 | /* now local changes will be tracked by inotify, but remote changes won't */ |
2928 | /* now re-arm timer, if required */ |
2898 | /* unless the filesystem is known to be local, we therefore still poll */ |
2929 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2899 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2900 | |
|
|
2901 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2902 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2903 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2904 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2905 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2906 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2907 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2908 | return; |
|
|
2909 | |
|
|
2910 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2911 | ev_timer_again (EV_A_ &w->timer); |
2930 | ev_timer_again (EV_A_ &w->timer); |
2912 | } |
2931 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2913 | } |
2932 | } |
2914 | |
2933 | |
2915 | static void noinline |
2934 | static void noinline |
2916 | infy_del (EV_P_ ev_stat *w) |
2935 | infy_del (EV_P_ ev_stat *w) |
2917 | { |
2936 | { |
… | |
… | |
2962 | |
2981 | |
2963 | static void |
2982 | static void |
2964 | infy_cb (EV_P_ ev_io *w, int revents) |
2983 | infy_cb (EV_P_ ev_io *w, int revents) |
2965 | { |
2984 | { |
2966 | char buf [EV_INOTIFY_BUFSIZE]; |
2985 | char buf [EV_INOTIFY_BUFSIZE]; |
2967 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2968 | int ofs; |
2986 | int ofs; |
2969 | int len = read (fs_fd, buf, sizeof (buf)); |
2987 | int len = read (fs_fd, buf, sizeof (buf)); |
2970 | |
2988 | |
2971 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2989 | for (ofs = 0; ofs < len; ) |
|
|
2990 | { |
|
|
2991 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2972 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2992 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2993 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
2994 | } |
2973 | } |
2995 | } |
2974 | |
2996 | |
2975 | inline_size void |
2997 | inline_size void |
2976 | check_2625 (EV_P) |
2998 | check_2625 (EV_P) |
2977 | { |
2999 | { |
… | |
… | |
3062 | w->wd = -1; |
3084 | w->wd = -1; |
3063 | |
3085 | |
3064 | if (fs_fd >= 0) |
3086 | if (fs_fd >= 0) |
3065 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3087 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3066 | else |
3088 | else |
|
|
3089 | { |
|
|
3090 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3091 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3067 | ev_timer_again (EV_A_ &w->timer); |
3092 | ev_timer_again (EV_A_ &w->timer); |
|
|
3093 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3094 | } |
3068 | } |
3095 | } |
3069 | } |
3096 | } |
3070 | } |
3097 | } |
3071 | |
3098 | |
3072 | #endif |
3099 | #endif |
… | |
… | |
3089 | static void noinline |
3116 | static void noinline |
3090 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3117 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3091 | { |
3118 | { |
3092 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3119 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3093 | |
3120 | |
3094 | /* we copy this here each the time so that */ |
3121 | ev_statdata prev = w->attr; |
3095 | /* prev has the old value when the callback gets invoked */ |
|
|
3096 | w->prev = w->attr; |
|
|
3097 | ev_stat_stat (EV_A_ w); |
3122 | ev_stat_stat (EV_A_ w); |
3098 | |
3123 | |
3099 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3124 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3100 | if ( |
3125 | if ( |
3101 | w->prev.st_dev != w->attr.st_dev |
3126 | prev.st_dev != w->attr.st_dev |
3102 | || w->prev.st_ino != w->attr.st_ino |
3127 | || prev.st_ino != w->attr.st_ino |
3103 | || w->prev.st_mode != w->attr.st_mode |
3128 | || prev.st_mode != w->attr.st_mode |
3104 | || w->prev.st_nlink != w->attr.st_nlink |
3129 | || prev.st_nlink != w->attr.st_nlink |
3105 | || w->prev.st_uid != w->attr.st_uid |
3130 | || prev.st_uid != w->attr.st_uid |
3106 | || w->prev.st_gid != w->attr.st_gid |
3131 | || prev.st_gid != w->attr.st_gid |
3107 | || w->prev.st_rdev != w->attr.st_rdev |
3132 | || prev.st_rdev != w->attr.st_rdev |
3108 | || w->prev.st_size != w->attr.st_size |
3133 | || prev.st_size != w->attr.st_size |
3109 | || w->prev.st_atime != w->attr.st_atime |
3134 | || prev.st_atime != w->attr.st_atime |
3110 | || w->prev.st_mtime != w->attr.st_mtime |
3135 | || prev.st_mtime != w->attr.st_mtime |
3111 | || w->prev.st_ctime != w->attr.st_ctime |
3136 | || prev.st_ctime != w->attr.st_ctime |
3112 | ) { |
3137 | ) { |
|
|
3138 | /* we only update w->prev on actual differences */ |
|
|
3139 | /* in case we test more often than invoke the callback, */ |
|
|
3140 | /* to ensure that prev is always different to attr */ |
|
|
3141 | w->prev = prev; |
|
|
3142 | |
3113 | #if EV_USE_INOTIFY |
3143 | #if EV_USE_INOTIFY |
3114 | if (fs_fd >= 0) |
3144 | if (fs_fd >= 0) |
3115 | { |
3145 | { |
3116 | infy_del (EV_A_ w); |
3146 | infy_del (EV_A_ w); |
3117 | infy_add (EV_A_ w); |
3147 | infy_add (EV_A_ w); |
… | |
… | |
3142 | |
3172 | |
3143 | if (fs_fd >= 0) |
3173 | if (fs_fd >= 0) |
3144 | infy_add (EV_A_ w); |
3174 | infy_add (EV_A_ w); |
3145 | else |
3175 | else |
3146 | #endif |
3176 | #endif |
|
|
3177 | { |
3147 | ev_timer_again (EV_A_ &w->timer); |
3178 | ev_timer_again (EV_A_ &w->timer); |
|
|
3179 | ev_unref (EV_A); |
|
|
3180 | } |
3148 | |
3181 | |
3149 | ev_start (EV_A_ (W)w, 1); |
3182 | ev_start (EV_A_ (W)w, 1); |
3150 | |
3183 | |
3151 | EV_FREQUENT_CHECK; |
3184 | EV_FREQUENT_CHECK; |
3152 | } |
3185 | } |
… | |
… | |
3161 | EV_FREQUENT_CHECK; |
3194 | EV_FREQUENT_CHECK; |
3162 | |
3195 | |
3163 | #if EV_USE_INOTIFY |
3196 | #if EV_USE_INOTIFY |
3164 | infy_del (EV_A_ w); |
3197 | infy_del (EV_A_ w); |
3165 | #endif |
3198 | #endif |
|
|
3199 | |
|
|
3200 | if (ev_is_active (&w->timer)) |
|
|
3201 | { |
|
|
3202 | ev_ref (EV_A); |
3166 | ev_timer_stop (EV_A_ &w->timer); |
3203 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3204 | } |
3167 | |
3205 | |
3168 | ev_stop (EV_A_ (W)w); |
3206 | ev_stop (EV_A_ (W)w); |
3169 | |
3207 | |
3170 | EV_FREQUENT_CHECK; |
3208 | EV_FREQUENT_CHECK; |
3171 | } |
3209 | } |
… | |
… | |
3390 | EV_FREQUENT_CHECK; |
3428 | EV_FREQUENT_CHECK; |
3391 | |
3429 | |
3392 | ev_io_stop (EV_A_ &w->io); |
3430 | ev_io_stop (EV_A_ &w->io); |
3393 | ev_prepare_stop (EV_A_ &w->prepare); |
3431 | ev_prepare_stop (EV_A_ &w->prepare); |
3394 | ev_fork_stop (EV_A_ &w->fork); |
3432 | ev_fork_stop (EV_A_ &w->fork); |
|
|
3433 | |
|
|
3434 | ev_stop (EV_A_ (W)w); |
3395 | |
3435 | |
3396 | EV_FREQUENT_CHECK; |
3436 | EV_FREQUENT_CHECK; |
3397 | } |
3437 | } |
3398 | #endif |
3438 | #endif |
3399 | |
3439 | |