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/* $OpenBSD: cancel2.c,v 1.3 2015/09/14 08:35:44 guenther Exp $ */
/* PUBLIC DOMAIN <marc@snafu.org> */
/*
* Check that a thread waiting on a select or poll without timeout can be
* cancelled.
*/
#include <sys/types.h>
#include <sys/time.h>
#include <poll.h>
#include <pthread.h>
#include <unistd.h>
#include "test.h"
static void *
select_thread(void *arg)
{
int read_fd = *(int*) arg;
fd_set read_fds;
int result;
FD_ZERO(&read_fds);
FD_SET(read_fd, &read_fds);
result = select(read_fd + 1, &read_fds, NULL, NULL, NULL);
printf("select returned %d\n", result);
return 0;
}
static void *
pselect_thread(void *arg)
{
int read_fd = *(int*) arg;
fd_set read_fds;
int result;
FD_ZERO(&read_fds);
FD_SET(read_fd, &read_fds);
result = pselect(read_fd + 1, &read_fds, NULL, NULL, NULL, NULL);
printf("pselect returned %d\n", result);
return 0;
}
static void *
poll_thread(void *arg)
{
int read_fd = *(int*) arg;
struct pollfd pfd;
int result;
pfd.fd = read_fd;
pfd.events = POLLIN;
result = poll(&pfd, 1, -1);
printf("poll returned %d\n", result);
return arg;
}
static void *
ppoll_thread(void *arg)
{
int read_fd = *(int*) arg;
struct pollfd pfd;
int result;
pfd.fd = read_fd;
pfd.events = POLLIN;
result = ppoll(&pfd, 1, NULL, NULL);
printf("ppoll returned %d\n", result);
return arg;
}
int
main(int argc, char *argv[])
{
pthread_t thread;
void *result = NULL;
int pipe_fd[2];
CHECKe(pipe(pipe_fd));
printf("trying select\n");
CHECKr(pthread_create(&thread, NULL, select_thread, pipe_fd));
sleep(1);
CHECKr(pthread_cancel(thread));
CHECKr(pthread_join(thread, &result));
ASSERT(result == PTHREAD_CANCELED);
printf("trying pselect\n");
CHECKr(pthread_create(&thread, NULL, pselect_thread, pipe_fd));
sleep(1);
CHECKr(pthread_cancel(thread));
CHECKr(pthread_join(thread, &result));
ASSERT(result == PTHREAD_CANCELED);
printf("trying poll\n");
CHECKr(pthread_create(&thread, NULL, poll_thread, pipe_fd));
sleep(1);
CHECKr(pthread_cancel(thread));
CHECKr(pthread_join(thread, &result));
ASSERT(result == PTHREAD_CANCELED);
printf("trying ppoll\n");
CHECKr(pthread_create(&thread, NULL, ppoll_thread, pipe_fd));
sleep(1);
CHECKr(pthread_cancel(thread));
CHECKr(pthread_join(thread, &result));
ASSERT(result == PTHREAD_CANCELED);
SUCCEED;
}
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