… | |
… | |
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 |
… | |
… | |
567 | |
570 | |
568 | static int ev_default_loop_ptr; |
571 | static int ev_default_loop_ptr; |
569 | |
572 | |
570 | #endif |
573 | #endif |
571 | |
574 | |
|
|
575 | #if EV_MINIMAL < 2 |
|
|
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) |
|
|
578 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
579 | #else |
|
|
580 | # define EV_RELEASE_CB (void)0 |
|
|
581 | # define EV_ACQUIRE_CB (void)0 |
|
|
582 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
583 | #endif |
|
|
584 | |
|
|
585 | #define EVUNLOOP_RECURSE 0x80 |
|
|
586 | |
572 | /*****************************************************************************/ |
587 | /*****************************************************************************/ |
573 | |
588 | |
574 | #ifndef EV_HAVE_EV_TIME |
589 | #ifndef EV_HAVE_EV_TIME |
575 | ev_tstamp |
590 | ev_tstamp |
576 | ev_time (void) |
591 | ev_time (void) |
… | |
… | |
750 | } |
765 | } |
751 | |
766 | |
752 | /*****************************************************************************/ |
767 | /*****************************************************************************/ |
753 | |
768 | |
754 | inline_speed void |
769 | inline_speed void |
755 | fd_event (EV_P_ int fd, int revents) |
770 | fd_event_nc (EV_P_ int fd, int revents) |
756 | { |
771 | { |
757 | ANFD *anfd = anfds + fd; |
772 | ANFD *anfd = anfds + fd; |
758 | ev_io *w; |
773 | ev_io *w; |
759 | |
774 | |
760 | 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) |
… | |
… | |
764 | if (ev) |
779 | if (ev) |
765 | ev_feed_event (EV_A_ (W)w, ev); |
780 | ev_feed_event (EV_A_ (W)w, ev); |
766 | } |
781 | } |
767 | } |
782 | } |
768 | |
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 | |
769 | void |
795 | void |
770 | ev_feed_fd_event (EV_P_ int fd, int revents) |
796 | ev_feed_fd_event (EV_P_ int fd, int revents) |
771 | { |
797 | { |
772 | if (fd >= 0 && fd < anfdmax) |
798 | if (fd >= 0 && fd < anfdmax) |
773 | fd_event (EV_A_ fd, revents); |
799 | fd_event_nc (EV_A_ fd, revents); |
774 | } |
800 | } |
775 | |
801 | |
776 | /* make sure the external fd watch events are in-sync */ |
802 | /* make sure the external fd watch events are in-sync */ |
777 | /* with the kernel/libev internal state */ |
803 | /* with the kernel/libev internal state */ |
778 | inline_size void |
804 | inline_size void |
… | |
… | |
893 | for (fd = 0; fd < anfdmax; ++fd) |
919 | for (fd = 0; fd < anfdmax; ++fd) |
894 | if (anfds [fd].events) |
920 | if (anfds [fd].events) |
895 | { |
921 | { |
896 | anfds [fd].events = 0; |
922 | anfds [fd].events = 0; |
897 | anfds [fd].emask = 0; |
923 | anfds [fd].emask = 0; |
898 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
924 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
899 | } |
925 | } |
900 | } |
926 | } |
901 | |
927 | |
902 | /*****************************************************************************/ |
928 | /*****************************************************************************/ |
903 | |
929 | |
… | |
… | |
1357 | ev_backend (EV_P) |
1383 | ev_backend (EV_P) |
1358 | { |
1384 | { |
1359 | return backend; |
1385 | return backend; |
1360 | } |
1386 | } |
1361 | |
1387 | |
|
|
1388 | #if EV_MINIMAL < 2 |
1362 | unsigned int |
1389 | unsigned int |
1363 | ev_loop_count (EV_P) |
1390 | ev_loop_count (EV_P) |
1364 | { |
1391 | { |
1365 | return loop_count; |
1392 | return loop_count; |
1366 | } |
1393 | } |
… | |
… | |
1380 | void |
1407 | void |
1381 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1408 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1382 | { |
1409 | { |
1383 | timeout_blocktime = interval; |
1410 | timeout_blocktime = interval; |
1384 | } |
1411 | } |
|
|
1412 | |
|
|
1413 | void |
|
|
1414 | ev_set_userdata (EV_P_ void *data) |
|
|
1415 | { |
|
|
1416 | userdata = data; |
|
|
1417 | } |
|
|
1418 | |
|
|
1419 | void * |
|
|
1420 | ev_userdata (EV_P) |
|
|
1421 | { |
|
|
1422 | return userdata; |
|
|
1423 | } |
|
|
1424 | |
|
|
1425 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1426 | { |
|
|
1427 | invoke_cb = invoke_pending_cb; |
|
|
1428 | } |
|
|
1429 | |
|
|
1430 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1431 | { |
|
|
1432 | release_cb = release; |
|
|
1433 | acquire_cb = acquire; |
|
|
1434 | } |
|
|
1435 | #endif |
1385 | |
1436 | |
1386 | /* initialise a loop structure, must be zero-initialised */ |
1437 | /* initialise a loop structure, must be zero-initialised */ |
1387 | static void noinline |
1438 | static void noinline |
1388 | loop_init (EV_P_ unsigned int flags) |
1439 | loop_init (EV_P_ unsigned int flags) |
1389 | { |
1440 | { |
… | |
… | |
1411 | |
1462 | |
1412 | ev_rt_now = ev_time (); |
1463 | ev_rt_now = ev_time (); |
1413 | mn_now = get_clock (); |
1464 | mn_now = get_clock (); |
1414 | now_floor = mn_now; |
1465 | now_floor = mn_now; |
1415 | rtmn_diff = ev_rt_now - mn_now; |
1466 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1467 | #if EV_MINIMAL < 2 |
1416 | invoke_cb = ev_invoke_pending; |
1468 | invoke_cb = ev_invoke_pending; |
|
|
1469 | #endif |
1417 | |
1470 | |
1418 | io_blocktime = 0.; |
1471 | io_blocktime = 0.; |
1419 | timeout_blocktime = 0.; |
1472 | timeout_blocktime = 0.; |
1420 | backend = 0; |
1473 | backend = 0; |
1421 | backend_fd = -1; |
1474 | backend_fd = -1; |
… | |
… | |
1615 | void |
1668 | void |
1616 | ev_loop_fork (EV_P) |
1669 | ev_loop_fork (EV_P) |
1617 | { |
1670 | { |
1618 | postfork = 1; /* must be in line with ev_default_fork */ |
1671 | postfork = 1; /* must be in line with ev_default_fork */ |
1619 | } |
1672 | } |
|
|
1673 | #endif /* multiplicity */ |
1620 | |
1674 | |
1621 | #if EV_VERIFY |
1675 | #if EV_VERIFY |
1622 | static void noinline |
1676 | static void noinline |
1623 | verify_watcher (EV_P_ W w) |
1677 | verify_watcher (EV_P_ W w) |
1624 | { |
1678 | { |
… | |
… | |
1652 | verify_watcher (EV_A_ ws [cnt]); |
1706 | verify_watcher (EV_A_ ws [cnt]); |
1653 | } |
1707 | } |
1654 | } |
1708 | } |
1655 | #endif |
1709 | #endif |
1656 | |
1710 | |
|
|
1711 | #if EV_MINIMAL < 2 |
1657 | void |
1712 | void |
1658 | ev_loop_verify (EV_P) |
1713 | ev_loop_verify (EV_P) |
1659 | { |
1714 | { |
1660 | #if EV_VERIFY |
1715 | #if EV_VERIFY |
1661 | int i; |
1716 | int i; |
… | |
… | |
1714 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1769 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1715 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1770 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1716 | # endif |
1771 | # endif |
1717 | #endif |
1772 | #endif |
1718 | } |
1773 | } |
1719 | |
1774 | #endif |
1720 | #endif /* multiplicity */ |
|
|
1721 | |
1775 | |
1722 | #if EV_MULTIPLICITY |
1776 | #if EV_MULTIPLICITY |
1723 | struct ev_loop * |
1777 | struct ev_loop * |
1724 | ev_default_loop_init (unsigned int flags) |
1778 | ev_default_loop_init (unsigned int flags) |
1725 | #else |
1779 | #else |
… | |
… | |
1786 | ev_invoke (EV_P_ void *w, int revents) |
1840 | ev_invoke (EV_P_ void *w, int revents) |
1787 | { |
1841 | { |
1788 | EV_CB_INVOKE ((W)w, revents); |
1842 | EV_CB_INVOKE ((W)w, revents); |
1789 | } |
1843 | } |
1790 | |
1844 | |
1791 | void |
1845 | void noinline |
1792 | ev_invoke_pending (EV_P) |
1846 | ev_invoke_pending (EV_P) |
1793 | { |
1847 | { |
1794 | int pri; |
1848 | int pri; |
1795 | |
1849 | |
1796 | for (pri = NUMPRI; pri--; ) |
1850 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
2035 | } |
2089 | } |
2036 | |
2090 | |
2037 | void |
2091 | void |
2038 | ev_loop (EV_P_ int flags) |
2092 | ev_loop (EV_P_ int flags) |
2039 | { |
2093 | { |
|
|
2094 | #if EV_MINIMAL < 2 |
2040 | ++loop_depth; |
2095 | ++loop_depth; |
|
|
2096 | #endif |
|
|
2097 | |
|
|
2098 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
2041 | |
2099 | |
2042 | loop_done = EVUNLOOP_CANCEL; |
2100 | loop_done = EVUNLOOP_CANCEL; |
2043 | |
2101 | |
2044 | invoke_cb (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2102 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2045 | |
2103 | |
2046 | do |
2104 | do |
2047 | { |
2105 | { |
2048 | #if EV_VERIFY >= 2 |
2106 | #if EV_VERIFY >= 2 |
2049 | ev_loop_verify (EV_A); |
2107 | ev_loop_verify (EV_A); |
… | |
… | |
2062 | /* we might have forked, so queue fork handlers */ |
2120 | /* we might have forked, so queue fork handlers */ |
2063 | if (expect_false (postfork)) |
2121 | if (expect_false (postfork)) |
2064 | if (forkcnt) |
2122 | if (forkcnt) |
2065 | { |
2123 | { |
2066 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2124 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2067 | invoke_cb (EV_A); |
2125 | EV_INVOKE_PENDING; |
2068 | } |
2126 | } |
2069 | #endif |
2127 | #endif |
2070 | |
2128 | |
2071 | /* queue prepare watchers (and execute them) */ |
2129 | /* queue prepare watchers (and execute them) */ |
2072 | if (expect_false (preparecnt)) |
2130 | if (expect_false (preparecnt)) |
2073 | { |
2131 | { |
2074 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2132 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2075 | invoke_cb (EV_A); |
2133 | EV_INVOKE_PENDING; |
2076 | } |
2134 | } |
|
|
2135 | |
|
|
2136 | if (expect_false (loop_done)) |
|
|
2137 | break; |
2077 | |
2138 | |
2078 | /* we might have forked, so reify kernel state if necessary */ |
2139 | /* we might have forked, so reify kernel state if necessary */ |
2079 | if (expect_false (postfork)) |
2140 | if (expect_false (postfork)) |
2080 | loop_fork (EV_A); |
2141 | loop_fork (EV_A); |
2081 | |
2142 | |
… | |
… | |
2129 | waittime -= sleeptime; |
2190 | waittime -= sleeptime; |
2130 | } |
2191 | } |
2131 | } |
2192 | } |
2132 | } |
2193 | } |
2133 | |
2194 | |
|
|
2195 | #if EV_MINIMAL < 2 |
2134 | ++loop_count; |
2196 | ++loop_count; |
|
|
2197 | #endif |
|
|
2198 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2135 | backend_poll (EV_A_ waittime); |
2199 | backend_poll (EV_A_ waittime); |
|
|
2200 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2136 | |
2201 | |
2137 | /* update ev_rt_now, do magic */ |
2202 | /* update ev_rt_now, do magic */ |
2138 | time_update (EV_A_ waittime + sleeptime); |
2203 | time_update (EV_A_ waittime + sleeptime); |
2139 | } |
2204 | } |
2140 | |
2205 | |
… | |
… | |
2151 | |
2216 | |
2152 | /* queue check watchers, to be executed first */ |
2217 | /* queue check watchers, to be executed first */ |
2153 | if (expect_false (checkcnt)) |
2218 | if (expect_false (checkcnt)) |
2154 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2219 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2155 | |
2220 | |
2156 | invoke_cb (EV_A); |
2221 | EV_INVOKE_PENDING; |
2157 | } |
2222 | } |
2158 | while (expect_true ( |
2223 | while (expect_true ( |
2159 | activecnt |
2224 | activecnt |
2160 | && !loop_done |
2225 | && !loop_done |
2161 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2226 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2162 | )); |
2227 | )); |
2163 | |
2228 | |
2164 | if (loop_done == EVUNLOOP_ONE) |
2229 | if (loop_done == EVUNLOOP_ONE) |
2165 | loop_done = EVUNLOOP_CANCEL; |
2230 | loop_done = EVUNLOOP_CANCEL; |
2166 | |
2231 | |
|
|
2232 | #if EV_MINIMAL < 2 |
2167 | --loop_depth; |
2233 | --loop_depth; |
|
|
2234 | #endif |
2168 | } |
2235 | } |
2169 | |
2236 | |
2170 | void |
2237 | void |
2171 | ev_unloop (EV_P_ int how) |
2238 | ev_unloop (EV_P_ int how) |
2172 | { |
2239 | { |
… | |
… | |
2304 | |
2371 | |
2305 | ev_start (EV_A_ (W)w, 1); |
2372 | ev_start (EV_A_ (W)w, 1); |
2306 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2373 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2307 | wlist_add (&anfds[fd].head, (WL)w); |
2374 | wlist_add (&anfds[fd].head, (WL)w); |
2308 | |
2375 | |
2309 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2376 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2310 | w->events &= ~EV__IOFDSET; |
2377 | w->events &= ~EV__IOFDSET; |
2311 | |
2378 | |
2312 | EV_FREQUENT_CHECK; |
2379 | EV_FREQUENT_CHECK; |
2313 | } |
2380 | } |
2314 | |
2381 | |