… | |
… | |
1191 | } |
1191 | } |
1192 | |
1192 | |
1193 | static void * |
1193 | static void * |
1194 | ev_realloc_emul (void *ptr, long size) EV_THROW |
1194 | ev_realloc_emul (void *ptr, long size) EV_THROW |
1195 | { |
1195 | { |
1196 | #if __GLIBC__ |
|
|
1197 | return realloc (ptr, size); |
|
|
1198 | #else |
|
|
1199 | /* some systems, notably openbsd and darwin, fail to properly |
1196 | /* some systems, notably openbsd and darwin, fail to properly |
1200 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1197 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1201 | * the single unix specification, so work around them here. |
1198 | * the single unix specification, so work around them here. |
|
|
1199 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1200 | * despite documenting it otherwise. |
1202 | */ |
1201 | */ |
1203 | |
1202 | |
1204 | if (size) |
1203 | if (size) |
1205 | return realloc (ptr, size); |
1204 | return realloc (ptr, size); |
1206 | |
1205 | |
1207 | free (ptr); |
1206 | free (ptr); |
1208 | return 0; |
1207 | return 0; |
1209 | #endif |
|
|
1210 | } |
1208 | } |
1211 | |
1209 | |
1212 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1210 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1213 | |
1211 | |
1214 | void ecb_cold |
1212 | void ecb_cold |
… | |
… | |
1869 | static void noinline ecb_cold |
1867 | static void noinline ecb_cold |
1870 | evpipe_init (EV_P) |
1868 | evpipe_init (EV_P) |
1871 | { |
1869 | { |
1872 | if (!ev_is_active (&pipe_w)) |
1870 | if (!ev_is_active (&pipe_w)) |
1873 | { |
1871 | { |
|
|
1872 | int fds [2]; |
|
|
1873 | |
1874 | # if EV_USE_EVENTFD |
1874 | # if EV_USE_EVENTFD |
|
|
1875 | fds [0] = -1; |
1875 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1876 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1876 | if (evfd < 0 && errno == EINVAL) |
1877 | if (fds [1] < 0 && errno == EINVAL) |
1877 | evfd = eventfd (0, 0); |
1878 | fds [1] = eventfd (0, 0); |
1878 | |
1879 | |
1879 | if (evfd >= 0) |
1880 | if (fds [1] < 0) |
1880 | { |
|
|
1881 | evpipe [0] = -1; |
|
|
1882 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
|
|
1883 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1884 | } |
|
|
1885 | else |
|
|
1886 | # endif |
1881 | # endif |
1887 | { |
1882 | { |
1888 | while (pipe (evpipe)) |
1883 | while (pipe (fds)) |
1889 | ev_syserr ("(libev) error creating signal/async pipe"); |
1884 | ev_syserr ("(libev) error creating signal/async pipe"); |
1890 | |
1885 | |
1891 | fd_intern (evpipe [0]); |
1886 | fd_intern (fds [0]); |
1892 | fd_intern (evpipe [1]); |
|
|
1893 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1894 | } |
1887 | } |
1895 | |
1888 | |
|
|
1889 | fd_intern (fds [1]); |
|
|
1890 | |
|
|
1891 | evpipe [0] = fds [0]; |
|
|
1892 | |
|
|
1893 | if (evpipe [1] < 0) |
|
|
1894 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
1895 | else |
|
|
1896 | { |
|
|
1897 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
1898 | /* so that evpipe_write can always rely on its value. */ |
|
|
1899 | /* this branch does not do anything sensible on windows, */ |
|
|
1900 | /* so must not be executed on windows */ |
|
|
1901 | |
|
|
1902 | dup2 (fds [1], evpipe [1]); |
|
|
1903 | close (fds [1]); |
|
|
1904 | } |
|
|
1905 | |
|
|
1906 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
1896 | ev_io_start (EV_A_ &pipe_w); |
1907 | ev_io_start (EV_A_ &pipe_w); |
1897 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1908 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1898 | } |
1909 | } |
1899 | } |
1910 | } |
1900 | |
1911 | |
… | |
… | |
1921 | ECB_MEMORY_FENCE_RELEASE; |
1932 | ECB_MEMORY_FENCE_RELEASE; |
1922 | |
1933 | |
1923 | old_errno = errno; /* save errno because write will clobber it */ |
1934 | old_errno = errno; /* save errno because write will clobber it */ |
1924 | |
1935 | |
1925 | #if EV_USE_EVENTFD |
1936 | #if EV_USE_EVENTFD |
1926 | if (evfd >= 0) |
1937 | if (evpipe [0] < 0) |
1927 | { |
1938 | { |
1928 | uint64_t counter = 1; |
1939 | uint64_t counter = 1; |
1929 | write (evfd, &counter, sizeof (uint64_t)); |
1940 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1930 | } |
1941 | } |
1931 | else |
1942 | else |
1932 | #endif |
1943 | #endif |
1933 | { |
1944 | { |
1934 | #ifdef _WIN32 |
1945 | #ifdef _WIN32 |
… | |
… | |
1954 | int i; |
1965 | int i; |
1955 | |
1966 | |
1956 | if (revents & EV_READ) |
1967 | if (revents & EV_READ) |
1957 | { |
1968 | { |
1958 | #if EV_USE_EVENTFD |
1969 | #if EV_USE_EVENTFD |
1959 | if (evfd >= 0) |
1970 | if (evpipe [0] < 0) |
1960 | { |
1971 | { |
1961 | uint64_t counter; |
1972 | uint64_t counter; |
1962 | read (evfd, &counter, sizeof (uint64_t)); |
1973 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1963 | } |
1974 | } |
1964 | else |
1975 | else |
1965 | #endif |
1976 | #endif |
1966 | { |
1977 | { |
1967 | char dummy[4]; |
1978 | char dummy[4]; |
… | |
… | |
2017 | |
2028 | |
2018 | void |
2029 | void |
2019 | ev_feed_signal (int signum) EV_THROW |
2030 | ev_feed_signal (int signum) EV_THROW |
2020 | { |
2031 | { |
2021 | #if EV_MULTIPLICITY |
2032 | #if EV_MULTIPLICITY |
|
|
2033 | ECB_MEMORY_FENCE_ACQUIRE; |
2022 | EV_P = signals [signum - 1].loop; |
2034 | EV_P = signals [signum - 1].loop; |
2023 | |
2035 | |
2024 | if (!EV_A) |
2036 | if (!EV_A) |
2025 | return; |
2037 | return; |
2026 | #endif |
2038 | #endif |
2027 | |
2039 | |
2028 | if (!ev_active (&pipe_w)) |
|
|
2029 | return; |
|
|
2030 | |
|
|
2031 | signals [signum - 1].pending = 1; |
2040 | signals [signum - 1].pending = 1; |
2032 | evpipe_write (EV_A_ &sig_pending); |
2041 | evpipe_write (EV_A_ &sig_pending); |
2033 | } |
2042 | } |
2034 | |
2043 | |
2035 | static void |
2044 | static void |
… | |
… | |
2045 | void noinline |
2054 | void noinline |
2046 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2055 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2047 | { |
2056 | { |
2048 | WL w; |
2057 | WL w; |
2049 | |
2058 | |
2050 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2059 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
2051 | return; |
2060 | return; |
2052 | |
2061 | |
2053 | --signum; |
2062 | --signum; |
2054 | |
2063 | |
2055 | #if EV_MULTIPLICITY |
2064 | #if EV_MULTIPLICITY |
… | |
… | |
2353 | #if EV_ASYNC_ENABLE |
2362 | #if EV_ASYNC_ENABLE |
2354 | async_pending = 0; |
2363 | async_pending = 0; |
2355 | #endif |
2364 | #endif |
2356 | pipe_write_skipped = 0; |
2365 | pipe_write_skipped = 0; |
2357 | pipe_write_wanted = 0; |
2366 | pipe_write_wanted = 0; |
|
|
2367 | evpipe [0] = -1; |
|
|
2368 | evpipe [1] = -1; |
2358 | #if EV_USE_INOTIFY |
2369 | #if EV_USE_INOTIFY |
2359 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2370 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2360 | #endif |
2371 | #endif |
2361 | #if EV_USE_SIGNALFD |
2372 | #if EV_USE_SIGNALFD |
2362 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2373 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
… | |
… | |
2425 | if (ev_is_active (&pipe_w)) |
2436 | if (ev_is_active (&pipe_w)) |
2426 | { |
2437 | { |
2427 | /*ev_ref (EV_A);*/ |
2438 | /*ev_ref (EV_A);*/ |
2428 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2439 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2429 | |
2440 | |
2430 | #if EV_USE_EVENTFD |
|
|
2431 | if (evfd >= 0) |
|
|
2432 | close (evfd); |
|
|
2433 | #endif |
|
|
2434 | |
|
|
2435 | if (evpipe [0] >= 0) |
|
|
2436 | { |
|
|
2437 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2441 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
2438 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2442 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
2439 | } |
|
|
2440 | } |
2443 | } |
2441 | |
2444 | |
2442 | #if EV_USE_SIGNALFD |
2445 | #if EV_USE_SIGNALFD |
2443 | if (ev_is_active (&sigfd_w)) |
2446 | if (ev_is_active (&sigfd_w)) |
2444 | close (sigfd); |
2447 | close (sigfd); |
… | |
… | |
2530 | #endif |
2533 | #endif |
2531 | #if EV_USE_INOTIFY |
2534 | #if EV_USE_INOTIFY |
2532 | infy_fork (EV_A); |
2535 | infy_fork (EV_A); |
2533 | #endif |
2536 | #endif |
2534 | |
2537 | |
|
|
2538 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2535 | if (ev_is_active (&pipe_w)) |
2539 | if (ev_is_active (&pipe_w)) |
2536 | { |
2540 | { |
2537 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2541 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2538 | |
2542 | |
2539 | ev_ref (EV_A); |
2543 | ev_ref (EV_A); |
2540 | ev_io_stop (EV_A_ &pipe_w); |
2544 | ev_io_stop (EV_A_ &pipe_w); |
2541 | |
2545 | |
2542 | #if EV_USE_EVENTFD |
|
|
2543 | if (evfd >= 0) |
|
|
2544 | close (evfd); |
|
|
2545 | #endif |
|
|
2546 | |
|
|
2547 | if (evpipe [0] >= 0) |
2546 | if (evpipe [0] >= 0) |
2548 | { |
|
|
2549 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2547 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2550 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2551 | } |
|
|
2552 | |
2548 | |
2553 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2554 | evpipe_init (EV_A); |
2549 | evpipe_init (EV_A); |
2555 | /* iterate over everything, in case we missed something before */ |
2550 | /* iterate over everything, in case we missed something before */ |
2556 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2551 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2557 | #endif |
|
|
2558 | } |
2552 | } |
|
|
2553 | #endif |
2559 | |
2554 | |
2560 | postfork = 0; |
2555 | postfork = 0; |
2561 | } |
2556 | } |
2562 | |
2557 | |
2563 | #if EV_MULTIPLICITY |
2558 | #if EV_MULTIPLICITY |
… | |
… | |
3532 | #if EV_MULTIPLICITY |
3527 | #if EV_MULTIPLICITY |
3533 | assert (("libev: a signal must not be attached to two different loops", |
3528 | assert (("libev: a signal must not be attached to two different loops", |
3534 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3529 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3535 | |
3530 | |
3536 | signals [w->signum - 1].loop = EV_A; |
3531 | signals [w->signum - 1].loop = EV_A; |
|
|
3532 | ECB_MEMORY_FENCE_RELEASE; |
3537 | #endif |
3533 | #endif |
3538 | |
3534 | |
3539 | EV_FREQUENT_CHECK; |
3535 | EV_FREQUENT_CHECK; |
3540 | |
3536 | |
3541 | #if EV_USE_SIGNALFD |
3537 | #if EV_USE_SIGNALFD |