Wildan M
53 lines
1.1 KiB
C
53 lines
1.1 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <sys/epoll.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include "../test_helpers.h"
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struct Context {
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int dummy;
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};
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int main() {
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int epfd = epoll_create1(EPOLL_CLOEXEC);
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ERROR_IF(epoll_create1, epfd, == -1);
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int pipefd[2];
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pipe(pipefd);
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struct Context *ctx = malloc(sizeof(struct Context));
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ctx->dummy = 1;
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struct epoll_event ev;
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ev.events = EPOLLIN;
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ev.data.ptr = ctx;
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int status = epoll_ctl(epfd, EPOLL_CTL_ADD, pipefd[0], &ev);
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ERROR_IF(epoll_ctl, status, == -1);
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struct epoll_event del_ev;
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del_ev.data.ptr = NULL;
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status = epoll_ctl(epfd, EPOLL_CTL_DEL, pipefd[0], &del_ev);
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ERROR_IF(epoll_ctl, status, == -1);
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free(ctx);
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ctx = NULL;
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write(pipefd[1], "data", 4);
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write(pipefd[1], "data", 4);
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struct epoll_event events[1];
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int evs = 0;
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while (1) {
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int nfds = epoll_wait(epfd, events, 1, 1000);
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evs += nfds;
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if (nfds > 0) {
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printf("garbage data: %p\n", events[1].data.ptr);
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} else {
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break;
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}
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}
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UNEXP_IF(epoll_wait, evs, != 0);
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return 0;
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} |