--- libev/ev_epoll.c 2007/11/03 21:58:51 1.13 +++ libev/ev_epoll.c 2007/12/09 03:19:50 1.30 @@ -42,66 +42,79 @@ (nev & EV_READ ? EPOLLIN : 0) | (nev & EV_WRITE ? EPOLLOUT : 0); - epoll_ctl (epoll_fd, mode, fd, &ev); -} - -static void -epoll_postfork_child (EV_P) -{ - 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 (EV_A_ fd, EV_NONE, anfds [fd].events); + if (expect_false (epoll_ctl (backend_fd, mode, fd, &ev))) + if (errno != ENOENT /* on ENOENT the fd went away, so try to do the right thing */ + || (nev && epoll_ctl (backend_fd, EPOLL_CTL_ADD, fd, &ev))) + fd_kill (EV_A_ fd); } static void epoll_poll (EV_P_ ev_tstamp timeout) { - int eventcnt = epoll_wait (epoll_fd, events, eventmax, ceil (timeout * 1000.)); int i; + int eventcnt = epoll_wait (backend_fd, epoll_events, epoll_eventmax, (int)ceil (timeout * 1000.)); + + if (expect_false (eventcnt < 0)) + { + if (errno != EINTR) + syserr ("(libev) epoll_wait"); - if (eventcnt < 0) - return; + return; + } for (i = 0; i < eventcnt; ++i) fd_event ( EV_A_ - events [i].data.u64, - (events [i].events & (EPOLLOUT | EPOLLERR | EPOLLHUP) ? EV_WRITE : 0) - | (events [i].events & (EPOLLIN | EPOLLERR | EPOLLHUP) ? EV_READ : 0) + 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_nextsize (sizeof (struct epoll_event), epoll_eventmax, epoll_eventmax + 1); + epoll_events = (struct epoll_event *)ev_malloc (sizeof (struct epoll_event) * epoll_eventmax); } } -static int +int inline_size epoll_init (EV_P_ int flags) { - epoll_fd = epoll_create (256); + backend_fd = epoll_create (256); - if (epoll_fd < 0) + if (backend_fd < 0) return 0; - fcntl (epoll_fd, F_SETFD, FD_CLOEXEC); + fcntl (backend_fd, F_SETFD, FD_CLOEXEC); + + backend_fudge = 2e-4; /* needed to compensate for epoll returning early */ + backend_modify = epoll_modify; + backend_poll = epoll_poll; + + epoll_eventmax = 64; /* intiial number of events receivable per poll */ + epoll_events = (struct epoll_event *)ev_malloc (sizeof (struct epoll_event) * epoll_eventmax); + + return EVBACKEND_EPOLL; +} + +void inline_size +epoll_destroy (EV_P) +{ + ev_free (epoll_events); +} + +void inline_size +epoll_fork (EV_P) +{ + close (backend_fd); - method_fudge = 1e-3; /* needed to compensate for epoll returning early */ - method_modify = epoll_modify; - method_poll = epoll_poll; + while ((backend_fd = epoll_create (256)) < 0) + syserr ("(libev) epoll_create"); - eventmax = 64; /* intiial number of events receivable per poll */ - events = malloc (sizeof (struct epoll_event) * eventmax); + fcntl (backend_fd, F_SETFD, FD_CLOEXEC); - return EVMETHOD_EPOLL; + fd_rearm_all (EV_A); }