78 lines
1.5 KiB
C
78 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) Linux Test Project, 2021
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* Author: Xie Ziyao <ziyaoxie@outlook.com>
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*/
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/*\
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* [Description]
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*
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* Check that epoll_ctl returns zero with different combinations of events on
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* success.
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*/
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#include <poll.h>
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#include <sys/epoll.h>
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#include "tst_test.h"
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#include "tst_bitmap.h"
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#define NUM_EPOLL_EVENTS 8
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#define WIDTH_EPOLL_EVENTS 256
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static int epfd, fds[2];
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static struct epoll_event events = {.events = EPOLLIN};
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static unsigned int events_type[NUM_EPOLL_EVENTS] = {
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EPOLLIN, EPOLLOUT, EPOLLPRI, EPOLLERR,
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EPOLLHUP, EPOLLET, EPOLLONESHOT, EPOLLRDHUP
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};
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static void run_all(void)
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{
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unsigned int i, j, events_bitmap;
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for (i = 0; i < WIDTH_EPOLL_EVENTS; i++) {
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events_bitmap = 0;
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for (j = 0; j < NUM_EPOLL_EVENTS; j++)
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events_bitmap |= (events_type[j] * TST_IS_BIT_SET(i, j));
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events.events = events_bitmap;
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TST_EXP_PASS(epoll_ctl(epfd, EPOLL_CTL_MOD, fds[0], &events),
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"epoll_ctl(..., EPOLL_CTL_MOD, ...) with events.events=%08x",
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events.events);
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}
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}
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static void setup(void)
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{
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epfd = epoll_create(1);
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if (epfd == -1)
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tst_brk(TBROK | TERRNO, "fail to create epoll instance");
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SAFE_PIPE(fds);
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events.data.fd = fds[0];
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if (epoll_ctl(epfd, EPOLL_CTL_ADD, fds[0], &events))
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tst_brk(TBROK | TERRNO, "epoll_clt(..., EPOLL_CTL_ADD, ...)");
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}
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static void cleanup(void)
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{
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if (epfd)
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SAFE_CLOSE(epfd);
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if (fds[0])
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SAFE_CLOSE(fds[0]);
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if (fds[1])
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SAFE_CLOSE(fds[1]);
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}
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static struct tst_test test = {
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.setup = setup,
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.cleanup = cleanup,
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.test_all = run_all,
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};
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