… | |
… | |
286 | # include <sys/select.h> |
286 | # include <sys/select.h> |
287 | # endif |
287 | # endif |
288 | #endif |
288 | #endif |
289 | |
289 | |
290 | #if EV_USE_INOTIFY |
290 | #if EV_USE_INOTIFY |
|
|
291 | # include <sys/utsname.h> |
291 | # include <sys/inotify.h> |
292 | # include <sys/inotify.h> |
292 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
293 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
293 | # ifndef IN_DONT_FOLLOW |
294 | # ifndef IN_DONT_FOLLOW |
294 | # undef EV_USE_INOTIFY |
295 | # undef EV_USE_INOTIFY |
295 | # define EV_USE_INOTIFY 0 |
296 | # define EV_USE_INOTIFY 0 |
… | |
… | |
387 | { |
388 | { |
388 | syserr_cb = cb; |
389 | syserr_cb = cb; |
389 | } |
390 | } |
390 | |
391 | |
391 | static void noinline |
392 | static void noinline |
392 | syserr (const char *msg) |
393 | ev_syserr (const char *msg) |
393 | { |
394 | { |
394 | if (!msg) |
395 | if (!msg) |
395 | msg = "(libev) system error"; |
396 | msg = "(libev) system error"; |
396 | |
397 | |
397 | if (syserr_cb) |
398 | if (syserr_cb) |
… | |
… | |
448 | typedef struct |
449 | typedef struct |
449 | { |
450 | { |
450 | WL head; |
451 | WL head; |
451 | unsigned char events; |
452 | unsigned char events; |
452 | unsigned char reify; |
453 | unsigned char reify; |
|
|
454 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
|
|
455 | unsigned char unused; |
|
|
456 | #if EV_USE_EPOLL |
|
|
457 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
458 | #endif |
453 | #if EV_SELECT_IS_WINSOCKET |
459 | #if EV_SELECT_IS_WINSOCKET |
454 | SOCKET handle; |
460 | SOCKET handle; |
455 | #endif |
461 | #endif |
456 | } ANFD; |
462 | } ANFD; |
457 | |
463 | |
… | |
… | |
610 | { |
616 | { |
611 | *cur = array_nextsize (elem, *cur, cnt); |
617 | *cur = array_nextsize (elem, *cur, cnt); |
612 | return ev_realloc (base, elem * *cur); |
618 | return ev_realloc (base, elem * *cur); |
613 | } |
619 | } |
614 | |
620 | |
|
|
621 | #define array_init_zero(base,count) \ |
|
|
622 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
|
|
623 | |
615 | #define array_needsize(type,base,cur,cnt,init) \ |
624 | #define array_needsize(type,base,cur,cnt,init) \ |
616 | if (expect_false ((cnt) > (cur))) \ |
625 | if (expect_false ((cnt) > (cur))) \ |
617 | { \ |
626 | { \ |
618 | int ocur_ = (cur); \ |
627 | int ocur_ = (cur); \ |
619 | (base) = (type *)array_realloc \ |
628 | (base) = (type *)array_realloc \ |
… | |
… | |
661 | for (i = 0; i < eventcnt; ++i) |
670 | for (i = 0; i < eventcnt; ++i) |
662 | ev_feed_event (EV_A_ events [i], type); |
671 | ev_feed_event (EV_A_ events [i], type); |
663 | } |
672 | } |
664 | |
673 | |
665 | /*****************************************************************************/ |
674 | /*****************************************************************************/ |
666 | |
|
|
667 | void inline_size |
|
|
668 | anfds_init (ANFD *base, int count) |
|
|
669 | { |
|
|
670 | while (count--) |
|
|
671 | { |
|
|
672 | base->head = 0; |
|
|
673 | base->events = EV_NONE; |
|
|
674 | base->reify = 0; |
|
|
675 | |
|
|
676 | ++base; |
|
|
677 | } |
|
|
678 | } |
|
|
679 | |
675 | |
680 | void inline_speed |
676 | void inline_speed |
681 | fd_event (EV_P_ int fd, int revents) |
677 | fd_event (EV_P_ int fd, int revents) |
682 | { |
678 | { |
683 | ANFD *anfd = anfds + fd; |
679 | ANFD *anfd = anfds + fd; |
… | |
… | |
813 | |
809 | |
814 | for (fd = 0; fd < anfdmax; ++fd) |
810 | for (fd = 0; fd < anfdmax; ++fd) |
815 | if (anfds [fd].events) |
811 | if (anfds [fd].events) |
816 | { |
812 | { |
817 | anfds [fd].events = 0; |
813 | anfds [fd].events = 0; |
|
|
814 | anfds [fd].emask = 0; |
818 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
815 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
819 | } |
816 | } |
820 | } |
817 | } |
821 | |
818 | |
822 | /*****************************************************************************/ |
819 | /*****************************************************************************/ |
… | |
… | |
974 | static ANSIG *signals; |
971 | static ANSIG *signals; |
975 | static int signalmax; |
972 | static int signalmax; |
976 | |
973 | |
977 | static EV_ATOMIC_T gotsig; |
974 | static EV_ATOMIC_T gotsig; |
978 | |
975 | |
979 | void inline_size |
|
|
980 | signals_init (ANSIG *base, int count) |
|
|
981 | { |
|
|
982 | while (count--) |
|
|
983 | { |
|
|
984 | base->head = 0; |
|
|
985 | base->gotsig = 0; |
|
|
986 | |
|
|
987 | ++base; |
|
|
988 | } |
|
|
989 | } |
|
|
990 | |
|
|
991 | /*****************************************************************************/ |
976 | /*****************************************************************************/ |
992 | |
977 | |
993 | void inline_speed |
978 | void inline_speed |
994 | fd_intern (int fd) |
979 | fd_intern (int fd) |
995 | { |
980 | { |
… | |
… | |
1016 | } |
1001 | } |
1017 | else |
1002 | else |
1018 | #endif |
1003 | #endif |
1019 | { |
1004 | { |
1020 | while (pipe (evpipe)) |
1005 | while (pipe (evpipe)) |
1021 | syserr ("(libev) error creating signal/async pipe"); |
1006 | ev_syserr ("(libev) error creating signal/async pipe"); |
1022 | |
1007 | |
1023 | fd_intern (evpipe [0]); |
1008 | fd_intern (evpipe [0]); |
1024 | fd_intern (evpipe [1]); |
1009 | fd_intern (evpipe [1]); |
1025 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1010 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1026 | } |
1011 | } |
… | |
… | |
1657 | { |
1642 | { |
1658 | #if EV_MULTIPLICITY |
1643 | #if EV_MULTIPLICITY |
1659 | struct ev_loop *loop = ev_default_loop_ptr; |
1644 | struct ev_loop *loop = ev_default_loop_ptr; |
1660 | #endif |
1645 | #endif |
1661 | |
1646 | |
|
|
1647 | ev_default_loop_ptr = 0; |
|
|
1648 | |
1662 | #ifndef _WIN32 |
1649 | #ifndef _WIN32 |
1663 | ev_ref (EV_A); /* child watcher */ |
1650 | ev_ref (EV_A); /* child watcher */ |
1664 | ev_signal_stop (EV_A_ &childev); |
1651 | ev_signal_stop (EV_A_ &childev); |
1665 | #endif |
1652 | #endif |
1666 | |
1653 | |
… | |
… | |
1672 | { |
1659 | { |
1673 | #if EV_MULTIPLICITY |
1660 | #if EV_MULTIPLICITY |
1674 | struct ev_loop *loop = ev_default_loop_ptr; |
1661 | struct ev_loop *loop = ev_default_loop_ptr; |
1675 | #endif |
1662 | #endif |
1676 | |
1663 | |
1677 | if (backend) |
|
|
1678 | postfork = 1; /* must be in line with ev_loop_fork */ |
1664 | postfork = 1; /* must be in line with ev_loop_fork */ |
1679 | } |
1665 | } |
1680 | |
1666 | |
1681 | /*****************************************************************************/ |
1667 | /*****************************************************************************/ |
1682 | |
1668 | |
1683 | void |
1669 | void |
… | |
… | |
2138 | |
2124 | |
2139 | if (expect_false (ev_is_active (w))) |
2125 | if (expect_false (ev_is_active (w))) |
2140 | return; |
2126 | return; |
2141 | |
2127 | |
2142 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2128 | assert (("ev_io_start called with negative fd", fd >= 0)); |
|
|
2129 | assert (("ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE)))); |
2143 | |
2130 | |
2144 | EV_FREQUENT_CHECK; |
2131 | EV_FREQUENT_CHECK; |
2145 | |
2132 | |
2146 | ev_start (EV_A_ (W)w, 1); |
2133 | ev_start (EV_A_ (W)w, 1); |
2147 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2134 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2148 | wlist_add (&anfds[fd].head, (WL)w); |
2135 | wlist_add (&anfds[fd].head, (WL)w); |
2149 | |
2136 | |
2150 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2137 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2151 | w->events &= ~EV_IOFDSET; |
2138 | w->events &= ~EV_IOFDSET; |
2152 | |
2139 | |
… | |
… | |
2344 | sigset_t full, prev; |
2331 | sigset_t full, prev; |
2345 | sigfillset (&full); |
2332 | sigfillset (&full); |
2346 | sigprocmask (SIG_SETMASK, &full, &prev); |
2333 | sigprocmask (SIG_SETMASK, &full, &prev); |
2347 | #endif |
2334 | #endif |
2348 | |
2335 | |
2349 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2336 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2350 | |
2337 | |
2351 | #ifndef _WIN32 |
2338 | #ifndef _WIN32 |
2352 | sigprocmask (SIG_SETMASK, &prev, 0); |
2339 | sigprocmask (SIG_SETMASK, &prev, 0); |
2353 | #endif |
2340 | #endif |
2354 | } |
2341 | } |
… | |
… | |
2445 | if (w->wd < 0) |
2432 | if (w->wd < 0) |
2446 | { |
2433 | { |
2447 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2434 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2448 | |
2435 | |
2449 | /* monitor some parent directory for speedup hints */ |
2436 | /* monitor some parent directory for speedup hints */ |
2450 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2437 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2451 | /* but an efficiency issue only */ |
2438 | /* but an efficiency issue only */ |
2452 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2439 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2453 | { |
2440 | { |
2454 | char path [4096]; |
2441 | char path [4096]; |
2455 | strcpy (path, w->path); |
2442 | strcpy (path, w->path); |
… | |
… | |
2496 | |
2483 | |
2497 | static void noinline |
2484 | static void noinline |
2498 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2485 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2499 | { |
2486 | { |
2500 | if (slot < 0) |
2487 | if (slot < 0) |
2501 | /* overflow, need to check for all hahs slots */ |
2488 | /* overflow, need to check for all hash slots */ |
2502 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2489 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2503 | infy_wd (EV_A_ slot, wd, ev); |
2490 | infy_wd (EV_A_ slot, wd, ev); |
2504 | else |
2491 | else |
2505 | { |
2492 | { |
2506 | WL w_; |
2493 | WL w_; |
… | |
… | |
2540 | infy_init (EV_P) |
2527 | infy_init (EV_P) |
2541 | { |
2528 | { |
2542 | if (fs_fd != -2) |
2529 | if (fs_fd != -2) |
2543 | return; |
2530 | return; |
2544 | |
2531 | |
|
|
2532 | /* kernels < 2.6.25 are borked |
|
|
2533 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2534 | */ |
|
|
2535 | { |
|
|
2536 | struct utsname buf; |
|
|
2537 | int major, minor, micro; |
|
|
2538 | |
|
|
2539 | fs_fd = -1; |
|
|
2540 | |
|
|
2541 | if (uname (&buf)) |
|
|
2542 | return; |
|
|
2543 | |
|
|
2544 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2545 | return; |
|
|
2546 | |
|
|
2547 | if (major < 2 |
|
|
2548 | || (major == 2 && minor < 6) |
|
|
2549 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2550 | return; |
|
|
2551 | } |
|
|
2552 | |
2545 | fs_fd = inotify_init (); |
2553 | fs_fd = inotify_init (); |
2546 | |
2554 | |
2547 | if (fs_fd >= 0) |
2555 | if (fs_fd >= 0) |
2548 | { |
2556 | { |
2549 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2557 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
… | |
… | |
2578 | if (fs_fd >= 0) |
2586 | if (fs_fd >= 0) |
2579 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2587 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2580 | else |
2588 | else |
2581 | ev_timer_start (EV_A_ &w->timer); |
2589 | ev_timer_start (EV_A_ &w->timer); |
2582 | } |
2590 | } |
2583 | |
|
|
2584 | } |
2591 | } |
2585 | } |
2592 | } |
2586 | |
2593 | |
2587 | #endif |
2594 | #endif |
2588 | |
2595 | |
… | |
… | |
2624 | || w->prev.st_atime != w->attr.st_atime |
2631 | || w->prev.st_atime != w->attr.st_atime |
2625 | || w->prev.st_mtime != w->attr.st_mtime |
2632 | || w->prev.st_mtime != w->attr.st_mtime |
2626 | || w->prev.st_ctime != w->attr.st_ctime |
2633 | || w->prev.st_ctime != w->attr.st_ctime |
2627 | ) { |
2634 | ) { |
2628 | #if EV_USE_INOTIFY |
2635 | #if EV_USE_INOTIFY |
|
|
2636 | if (fs_fd >= 0) |
|
|
2637 | { |
2629 | infy_del (EV_A_ w); |
2638 | infy_del (EV_A_ w); |
2630 | infy_add (EV_A_ w); |
2639 | infy_add (EV_A_ w); |
2631 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2640 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2641 | } |
2632 | #endif |
2642 | #endif |
2633 | |
2643 | |
2634 | ev_feed_event (EV_A_ w, EV_STAT); |
2644 | ev_feed_event (EV_A_ w, EV_STAT); |
2635 | } |
2645 | } |
2636 | } |
2646 | } |