83 lines
1.5 KiB
C
83 lines
1.5 KiB
C
#ifndef poll_socket_epoll_h
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#define poll_socket_epoll_h
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#include <netdb.h>
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#include <unistd.h>
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#include <sys/epoll.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <fcntl.h>
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static bool
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sp_invalid(int efd) {
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return efd == -1;
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}
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static int
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sp_create() {
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return epoll_create(1024);
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}
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static void
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sp_release(int efd) {
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close(efd);
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}
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static int
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sp_add(int efd, int sock, void *ud) {
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struct epoll_event ev;
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ev.events = EPOLLIN;
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ev.data.ptr = ud;
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if (epoll_ctl(efd, EPOLL_CTL_ADD, sock, &ev) == -1) {
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return 1;
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}
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return 0;
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}
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static void
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sp_del(int efd, int sock) {
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epoll_ctl(efd, EPOLL_CTL_DEL, sock , NULL);
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}
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static int
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sp_enable(int efd, int sock, void *ud, bool read_enable, bool write_enable) {
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struct epoll_event ev;
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ev.events = (read_enable ? EPOLLIN : 0) | (write_enable ? EPOLLOUT : 0);
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ev.data.ptr = ud;
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if (epoll_ctl(efd, EPOLL_CTL_MOD, sock, &ev) == -1) {
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return 1;
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}
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return 0;
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}
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static int
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sp_wait(int efd, struct event *e, int max) {
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struct epoll_event ev[max];
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int n = epoll_wait(efd , ev, max, -1);
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int i;
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for (i=0;i<n;i++) {
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e[i].s = ev[i].data.ptr;
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unsigned flag = ev[i].events;
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e[i].write = (flag & EPOLLOUT) != 0;
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e[i].read = (flag & (EPOLLIN | EPOLLHUP)) != 0;
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e[i].error = (flag & EPOLLERR) != 0;
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e[i].eof = false;
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}
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return n;
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}
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static void
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sp_nonblocking(int fd) {
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int flag = fcntl(fd, F_GETFL, 0);
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if ( -1 == flag ) {
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return;
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}
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fcntl(fd, F_SETFL, flag | O_NONBLOCK);
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}
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#endif
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