| #include <sys/types.h> |
| |
| #include <unistd.h> |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <errno.h> |
| #include <signal.h> |
| #include <fcntl.h> |
| |
| #include "fdevent.h" |
| #include "settings.h" |
| #include "buffer.h" |
| |
| #ifdef USE_LINUX_EPOLL |
| static void fdevent_linux_sysepoll_free(fdevents *ev) { |
| close(ev->epoll_fd); |
| free(ev->epoll_events); |
| } |
| |
| static int fdevent_linux_sysepoll_event_del(fdevents *ev, int fde_ndx, int fd) { |
| struct epoll_event ep; |
| |
| if (fde_ndx < 0) return -1; |
| |
| memset(&ep, 0, sizeof(ep)); |
| |
| ep.data.fd = fd; |
| ep.data.ptr = NULL; |
| |
| if (0 != epoll_ctl(ev->epoll_fd, EPOLL_CTL_DEL, fd, &ep)) { |
| fprintf(stderr, "%s.%d: epoll_ctl failed: %s, dying\n", __FILE__, __LINE__, strerror(errno)); |
| |
| SEGFAULT(); |
| |
| return 0; |
| } |
| |
| |
| return -1; |
| } |
| |
| static int fdevent_linux_sysepoll_event_add(fdevents *ev, int fde_ndx, int fd, int events) { |
| struct epoll_event ep; |
| int add = 0; |
| |
| if (fde_ndx == -1) add = 1; |
| |
| memset(&ep, 0, sizeof(ep)); |
| |
| ep.events = 0; |
| |
| if (events & FDEVENT_IN) ep.events |= EPOLLIN; |
| if (events & FDEVENT_OUT) ep.events |= EPOLLOUT; |
| |
| /** |
| * |
| * with EPOLLET we don't get a FDEVENT_HUP |
| * if the close is delay after everything has |
| * sent. |
| * |
| */ |
| |
| ep.events |= EPOLLERR | EPOLLHUP /* | EPOLLET */; |
| |
| ep.data.ptr = NULL; |
| ep.data.fd = fd; |
| |
| if (0 != epoll_ctl(ev->epoll_fd, add ? EPOLL_CTL_ADD : EPOLL_CTL_MOD, fd, &ep)) { |
| fprintf(stderr, "%s.%d: epoll_ctl failed: %s, dying\n", __FILE__, __LINE__, strerror(errno)); |
| |
| SEGFAULT(); |
| |
| return 0; |
| } |
| |
| return fd; |
| } |
| |
| static int fdevent_linux_sysepoll_poll(fdevents *ev, int timeout_ms) { |
| return epoll_wait(ev->epoll_fd, ev->epoll_events, ev->maxfds, timeout_ms); |
| } |
| |
| static int fdevent_linux_sysepoll_event_get_revent(fdevents *ev, size_t ndx) { |
| int events = 0, e; |
| |
| e = ev->epoll_events[ndx].events; |
| if (e & EPOLLIN) events |= FDEVENT_IN; |
| if (e & EPOLLOUT) events |= FDEVENT_OUT; |
| if (e & EPOLLERR) events |= FDEVENT_ERR; |
| if (e & EPOLLHUP) events |= FDEVENT_HUP; |
| if (e & EPOLLPRI) events |= FDEVENT_PRI; |
| |
| return e; |
| } |
| |
| static int fdevent_linux_sysepoll_event_get_fd(fdevents *ev, size_t ndx) { |
| # if 0 |
| fprintf(stderr, "%s.%d: %d, %d\n", __FILE__, __LINE__, ndx, ev->epoll_events[ndx].data.fd); |
| # endif |
| |
| return ev->epoll_events[ndx].data.fd; |
| } |
| |
| static int fdevent_linux_sysepoll_event_next_fdndx(fdevents *ev, int ndx) { |
| size_t i; |
| |
| UNUSED(ev); |
| |
| i = (ndx < 0) ? 0 : ndx + 1; |
| |
| return i; |
| } |
| |
| int fdevent_linux_sysepoll_init(fdevents *ev) { |
| ev->type = FDEVENT_HANDLER_LINUX_SYSEPOLL; |
| #define SET(x) \ |
| ev->x = fdevent_linux_sysepoll_##x; |
| |
| SET(free); |
| SET(poll); |
| |
| SET(event_del); |
| SET(event_add); |
| |
| SET(event_next_fdndx); |
| SET(event_get_fd); |
| SET(event_get_revent); |
| |
| if (-1 == (ev->epoll_fd = epoll_create(ev->maxfds))) { |
| fprintf(stderr, "%s.%d: epoll_create failed (%s), try to set server.event-handler = \"poll\" or \"select\"\n", |
| __FILE__, __LINE__, strerror(errno)); |
| |
| return -1; |
| } |
| |
| if (-1 == fcntl(ev->epoll_fd, F_SETFD, FD_CLOEXEC)) { |
| fprintf(stderr, "%s.%d: epoll_create failed (%s), try to set server.event-handler = \"poll\" or \"select\"\n", |
| __FILE__, __LINE__, strerror(errno)); |
| |
| close(ev->epoll_fd); |
| |
| return -1; |
| } |
| |
| ev->epoll_events = malloc(ev->maxfds * sizeof(*ev->epoll_events)); |
| |
| return 0; |
| } |
| |
| #else |
| int fdevent_linux_sysepoll_init(fdevents *ev) { |
| UNUSED(ev); |
| |
| fprintf(stderr, "%s.%d: linux-sysepoll not supported, try to set server.event-handler = \"poll\" or \"select\"\n", |
| __FILE__, __LINE__); |
| |
| return -1; |
| } |
| #endif |