--- libev/ev_epoll.c 2007/11/03 10:37:29 1.11 +++ libev/ev_epoll.c 2007/11/06 01:17:16 1.22 @@ -31,10 +31,8 @@ #include -static int epoll_fd = -1; - static void -epoll_modify (int fd, int oev, int nev) +epoll_modify (EV_P_ int fd, int oev, int nev) { int mode = nev ? oev ? EPOLL_CTL_MOD : EPOLL_CTL_ADD : EPOLL_CTL_DEL; @@ -44,67 +42,81 @@ (nev & EV_READ ? EPOLLIN : 0) | (nev & EV_WRITE ? EPOLLOUT : 0); - epoll_ctl (epoll_fd, mode, fd, &ev); -} - -static void -epoll_postfork_child (void) -{ - int fd; - - epoll_fd = epoll_create (256); - fcntl (epoll_fd, F_SETFD, FD_CLOEXEC); - - /* re-register interest in fds */ - for (fd = 0; fd < anfdmax; ++fd) - if (anfds [fd].events)//D - epoll_modify (fd, EV_NONE, anfds [fd].events); + if (epoll_ctl (epoll_fd, mode, fd, &ev)) + if (errno != ENOENT /* on ENOENT the fd went away, so try to do the right thing */ + || (nev && epoll_ctl (epoll_fd, EPOLL_CTL_ADD, fd, &ev))) + fd_kill (EV_A_ fd); } -static struct epoll_event *events; -static int eventmax; - static void -epoll_poll (ev_tstamp timeout) +epoll_poll (EV_P_ ev_tstamp timeout) { - int eventcnt = epoll_wait (epoll_fd, events, eventmax, ceil (timeout * 1000.)); int i; + int eventcnt = epoll_wait (epoll_fd, epoll_events, epoll_eventmax, ceil (timeout * 1000.)); if (eventcnt < 0) - return; + { + if (errno != EINTR) + syserr ("(libev) epoll_wait"); + + return; + } for (i = 0; i < eventcnt; ++i) fd_event ( - events [i].data.fd, - (events [i].events & (EPOLLOUT | EPOLLERR | EPOLLHUP) ? EV_WRITE : 0) - | (events [i].events & (EPOLLIN | EPOLLERR | EPOLLHUP) ? EV_READ : 0) + EV_A_ + epoll_events [i].data.u64, + (epoll_events [i].events & (EPOLLOUT | EPOLLERR | EPOLLHUP) ? EV_WRITE : 0) + | (epoll_events [i].events & (EPOLLIN | EPOLLERR | EPOLLHUP) ? EV_READ : 0) ); /* if the receive array was full, increase its size */ - if (expect_false (eventcnt == eventmax)) + if (expect_false (eventcnt == epoll_eventmax)) { - free (events); - eventmax = array_roundsize (events, eventmax << 1); - events = malloc (sizeof (struct epoll_event) * eventmax); + ev_free (epoll_events); + epoll_eventmax = array_roundsize (epoll_events, epoll_eventmax << 1); + epoll_events = ev_malloc (sizeof (struct epoll_event) * epoll_eventmax); } } -static void -epoll_init (int flags) +static int +epoll_init (EV_P_ int flags) { epoll_fd = epoll_create (256); if (epoll_fd < 0) - return; + return 0; fcntl (epoll_fd, F_SETFD, FD_CLOEXEC); - ev_method = EVMETHOD_EPOLL; method_fudge = 1e-3; /* needed to compensate for epoll returning early */ method_modify = epoll_modify; method_poll = epoll_poll; - eventmax = 64; /* intiial number of events receivable per poll */ - events = malloc (sizeof (struct epoll_event) * eventmax); + epoll_eventmax = 64; /* intiial number of events receivable per poll */ + epoll_events = ev_malloc (sizeof (struct epoll_event) * epoll_eventmax); + + return EVMETHOD_EPOLL; +} + +static void +epoll_destroy (EV_P) +{ + close (epoll_fd); + + ev_free (epoll_events); +} + +static void +epoll_fork (EV_P) +{ + close (epoll_fd); + + while ((epoll_fd = epoll_create (256)) < 0) + syserr ("(libev) epoll_create"); + + fcntl (epoll_fd, F_SETFD, FD_CLOEXEC); + + fd_rearm_all (EV_A); }