… | |
… | |
490 | #define ev_malloc(size) ev_realloc (0, (size)) |
490 | #define ev_malloc(size) ev_realloc (0, (size)) |
491 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
491 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
492 | |
492 | |
493 | /*****************************************************************************/ |
493 | /*****************************************************************************/ |
494 | |
494 | |
|
|
495 | /* set in reify when reification needed */ |
|
|
496 | #define EV_ANFD_REIFY 1 |
|
|
497 | |
495 | /* file descriptor info structure */ |
498 | /* file descriptor info structure */ |
496 | typedef struct |
499 | typedef struct |
497 | { |
500 | { |
498 | WL head; |
501 | WL head; |
499 | unsigned char events; /* the events watched for */ |
502 | unsigned char events; /* the events watched for */ |
500 | unsigned char reify; /* flag set when this ANFD needs reification */ |
503 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
501 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
504 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
502 | unsigned char unused; |
505 | unsigned char unused; |
503 | #if EV_USE_EPOLL |
506 | #if EV_USE_EPOLL |
504 | unsigned int egen; /* generation counter to counter epoll bugs */ |
507 | unsigned int egen; /* generation counter to counter epoll bugs */ |
505 | #endif |
508 | #endif |
… | |
… | |
568 | static int ev_default_loop_ptr; |
571 | static int ev_default_loop_ptr; |
569 | |
572 | |
570 | #endif |
573 | #endif |
571 | |
574 | |
572 | #if EV_MINIMAL < 2 |
575 | #if EV_MINIMAL < 2 |
573 | # define EV_SUSPEND_CB if (expect_false (suspend_cb)) suspend_cb (EV_A) |
|
|
574 | # define EV_RESUME_CB if (expect_false (resume_cb )) resume_cb (EV_A) |
576 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
577 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
575 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
578 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
576 | #else |
579 | #else |
577 | # define EV_SUSPEND_CB (void)0 |
|
|
578 | # define EV_RESUME_CB (void)0 |
580 | # define EV_RELEASE_CB (void)0 |
|
|
581 | # define EV_ACQUIRE_CB (void)0 |
579 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
582 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
580 | #endif |
583 | #endif |
|
|
584 | |
|
|
585 | #define EVUNLOOP_RECURSE 0x80 |
581 | |
586 | |
582 | /*****************************************************************************/ |
587 | /*****************************************************************************/ |
583 | |
588 | |
584 | #ifndef EV_HAVE_EV_TIME |
589 | #ifndef EV_HAVE_EV_TIME |
585 | ev_tstamp |
590 | ev_tstamp |
… | |
… | |
760 | } |
765 | } |
761 | |
766 | |
762 | /*****************************************************************************/ |
767 | /*****************************************************************************/ |
763 | |
768 | |
764 | inline_speed void |
769 | inline_speed void |
765 | fd_event (EV_P_ int fd, int revents) |
770 | fd_event_nc (EV_P_ int fd, int revents) |
766 | { |
771 | { |
767 | ANFD *anfd = anfds + fd; |
772 | ANFD *anfd = anfds + fd; |
768 | ev_io *w; |
773 | ev_io *w; |
769 | |
774 | |
770 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
775 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
774 | if (ev) |
779 | if (ev) |
775 | ev_feed_event (EV_A_ (W)w, ev); |
780 | ev_feed_event (EV_A_ (W)w, ev); |
776 | } |
781 | } |
777 | } |
782 | } |
778 | |
783 | |
|
|
784 | /* do not submit kernel events for fds that have reify set */ |
|
|
785 | /* because that means they changed while we were polling for new events */ |
|
|
786 | inline_speed void |
|
|
787 | fd_event (EV_P_ int fd, int revents) |
|
|
788 | { |
|
|
789 | ANFD *anfd = anfds + fd; |
|
|
790 | |
|
|
791 | if (expect_true (!anfd->reify)) |
|
|
792 | fd_event_nc (EV_A_ fd, revents); |
|
|
793 | } |
|
|
794 | |
779 | void |
795 | void |
780 | ev_feed_fd_event (EV_P_ int fd, int revents) |
796 | ev_feed_fd_event (EV_P_ int fd, int revents) |
781 | { |
797 | { |
782 | if (fd >= 0 && fd < anfdmax) |
798 | if (fd >= 0 && fd < anfdmax) |
783 | fd_event (EV_A_ fd, revents); |
799 | fd_event_nc (EV_A_ fd, revents); |
784 | } |
800 | } |
785 | |
801 | |
786 | /* make sure the external fd watch events are in-sync */ |
802 | /* make sure the external fd watch events are in-sync */ |
787 | /* with the kernel/libev internal state */ |
803 | /* with the kernel/libev internal state */ |
788 | inline_size void |
804 | inline_size void |
… | |
… | |
903 | for (fd = 0; fd < anfdmax; ++fd) |
919 | for (fd = 0; fd < anfdmax; ++fd) |
904 | if (anfds [fd].events) |
920 | if (anfds [fd].events) |
905 | { |
921 | { |
906 | anfds [fd].events = 0; |
922 | anfds [fd].events = 0; |
907 | anfds [fd].emask = 0; |
923 | anfds [fd].emask = 0; |
908 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
924 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
909 | } |
925 | } |
910 | } |
926 | } |
911 | |
927 | |
912 | /*****************************************************************************/ |
928 | /*****************************************************************************/ |
913 | |
929 | |
… | |
… | |
1409 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
1425 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
1410 | { |
1426 | { |
1411 | invoke_cb = invoke_pending_cb; |
1427 | invoke_cb = invoke_pending_cb; |
1412 | } |
1428 | } |
1413 | |
1429 | |
1414 | void ev_set_blocking_cb (EV_P_ void (*suspend_cb_)(EV_P), void (*resume_cb_)(EV_P)) |
1430 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
1415 | { |
1431 | { |
1416 | suspend_cb = suspend_cb_; |
1432 | release_cb = release; |
1417 | resume_cb = resume_cb_; |
1433 | acquire_cb = acquire; |
1418 | } |
1434 | } |
1419 | #endif |
1435 | #endif |
1420 | |
1436 | |
1421 | /* initialise a loop structure, must be zero-initialised */ |
1437 | /* initialise a loop structure, must be zero-initialised */ |
1422 | static void noinline |
1438 | static void noinline |
… | |
… | |
2077 | { |
2093 | { |
2078 | #if EV_MINIMAL < 2 |
2094 | #if EV_MINIMAL < 2 |
2079 | ++loop_depth; |
2095 | ++loop_depth; |
2080 | #endif |
2096 | #endif |
2081 | |
2097 | |
|
|
2098 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2099 | |
2082 | loop_done = EVUNLOOP_CANCEL; |
2100 | loop_done = EVUNLOOP_CANCEL; |
2083 | |
2101 | |
2084 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2102 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2085 | |
2103 | |
2086 | do |
2104 | do |
… | |
… | |
2113 | { |
2131 | { |
2114 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2132 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2115 | EV_INVOKE_PENDING; |
2133 | EV_INVOKE_PENDING; |
2116 | } |
2134 | } |
2117 | |
2135 | |
|
|
2136 | if (expect_false (loop_done)) |
|
|
2137 | break; |
|
|
2138 | |
2118 | /* we might have forked, so reify kernel state if necessary */ |
2139 | /* we might have forked, so reify kernel state if necessary */ |
2119 | if (expect_false (postfork)) |
2140 | if (expect_false (postfork)) |
2120 | loop_fork (EV_A); |
2141 | loop_fork (EV_A); |
2121 | |
2142 | |
2122 | /* update fd-related kernel structures */ |
2143 | /* update fd-related kernel structures */ |
… | |
… | |
2172 | } |
2193 | } |
2173 | |
2194 | |
2174 | #if EV_MINIMAL < 2 |
2195 | #if EV_MINIMAL < 2 |
2175 | ++loop_count; |
2196 | ++loop_count; |
2176 | #endif |
2197 | #endif |
|
|
2198 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2177 | backend_poll (EV_A_ waittime); |
2199 | backend_poll (EV_A_ waittime); |
|
|
2200 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2178 | |
2201 | |
2179 | /* update ev_rt_now, do magic */ |
2202 | /* update ev_rt_now, do magic */ |
2180 | time_update (EV_A_ waittime + sleeptime); |
2203 | time_update (EV_A_ waittime + sleeptime); |
2181 | } |
2204 | } |
2182 | |
2205 | |
… | |
… | |
2348 | |
2371 | |
2349 | ev_start (EV_A_ (W)w, 1); |
2372 | ev_start (EV_A_ (W)w, 1); |
2350 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2373 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2351 | wlist_add (&anfds[fd].head, (WL)w); |
2374 | wlist_add (&anfds[fd].head, (WL)w); |
2352 | |
2375 | |
2353 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2376 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2354 | w->events &= ~EV__IOFDSET; |
2377 | w->events &= ~EV__IOFDSET; |
2355 | |
2378 | |
2356 | EV_FREQUENT_CHECK; |
2379 | EV_FREQUENT_CHECK; |
2357 | } |
2380 | } |
2358 | |
2381 | |