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test/regress: cover a polling of invalid fd

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Test that an event's callback is called if the fd is closed prior to being
polled for activity.

azat: make it run only for poll backend/method, and do not close fd
twice
This commit is contained in:
Tim Hentenaar 2016-07-15 02:27:23 +02:00 committed by Azat Khuzhin
parent 675974ce30
commit cb0df5cfac
1 changed files with 38 additions and 3 deletions
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41
test/regress.c
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@ -2836,15 +2836,47 @@ end:
}
}
#ifndef _WIN32
/* You can't do this test on windows, since dup2 doesn't work on sockets */
static void
dfd_cb(evutil_socket_t fd, short e, void *data)
{
*(int*)data = (int)e;
}
static void
test_event_closed_fd_poll(void *arg)
{
struct timeval tv;
struct event *e;
struct basic_test_data *data = (struct basic_test_data *)arg;
int i = 0;
if (strcmp(event_base_get_method(data->base), "poll")) {
tinytest_set_test_skipped_();
return;
}
e = event_new(data->base, data->pair[0], EV_READ, dfd_cb, &i);
tt_assert(e);
tv.tv_sec = 0;
tv.tv_usec = 500 * 1000;
event_add(e, &tv);
tt_assert(event_pending(e, EV_READ, NULL));
close(data->pair[0]);
data->pair[0] = -1; /** avoids double-close */
event_base_loop(data->base, EVLOOP_ONCE);
tt_int_op(i, ==, EV_READ);
end:
if (e) {
event_del(e);
event_free(e);
}
}
#ifndef _WIN32
/* You can't do this test on windows, since dup2 doesn't work on sockets */
/* Regression test for our workaround for a fun epoll/linux related bug
* where fd2 = dup(fd1); add(fd2); close(fd2); dup2(fd1,fd2); add(fd2)
* will get you an EEXIST */
@ -3381,6 +3413,9 @@ struct testcase_t main_testcases[] = {
{ "event_once_never", test_event_once_never, TT_ISOLATED, &basic_setup, NULL },
{ "event_pending", test_event_pending, TT_ISOLATED, &basic_setup,
NULL },
{ "event_closed_fd_poll", test_event_closed_fd_poll, TT_ISOLATED, &basic_setup,
NULL },
#ifndef _WIN32
{ "dup_fd", test_dup_fd, TT_ISOLATED, &basic_setup, NULL },
#endif