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Fix poll behavior

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This commit is contained in:
Ruihan Li
2024-09-01 21:48:03 +08:00
committed by Tate, Hongliang Tian
parent 479d98c8b9
commit 6151d65cf5
2 changed files with 74 additions and 42 deletions
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41
test/apps/epoll/epoll_err.c
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@ -50,3 +50,44 @@ FN_TEST(epoll_add_del)
TEST_SUCC(close(rfd2));
}
END_TEST()
FN_TEST(epoll_mod)
{
int fildes[2];
int epfd, rfd, wfd;
struct epoll_event ev;
char buf[1];
// Setup pipes
TEST_SUCC(pipe(fildes));
rfd = fildes[0];
wfd = fildes[1];
TEST_SUCC(write(wfd, "", 1));
// Setup epoll
epfd = TEST_SUCC(epoll_create1(0));
ev.events = EPOLLOUT;
ev.data.fd = rfd;
TEST_SUCC(epoll_ctl(epfd, EPOLL_CTL_ADD, rfd, &ev));
// Wait for EPOLLOUT
TEST_RES(epoll_wait(epfd, &ev, 1, 0), _ret == 0);
// Modify the events
ev.events = EPOLLIN;
ev.data.fd = rfd;
TEST_SUCC(epoll_ctl(epfd, EPOLL_CTL_MOD, rfd, &ev));
// Wait for EPOLLIN
TEST_RES(epoll_wait(epfd, &ev, 1, 0), _ret == 1);
TEST_SUCC(read(rfd, buf, 1));
TEST_RES(epoll_wait(epfd, &ev, 1, 0), _ret == 0);
TEST_SUCC(write(wfd, "", 1));
TEST_RES(epoll_wait(epfd, &ev, 1, 0), _ret == 1);
// Clean up
TEST_SUCC(close(epfd));
TEST_SUCC(close(rfd));
TEST_SUCC(close(wfd));
}
END_TEST()