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/*
* Copyright (c) 2015-2021 Dmitry V. Levin <ldv@strace.io>
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <assert.h>
#include <stdlib.h>
#include <unistd.h>
#include <pthread.h>
#include <sys/wait.h>
#define P 16
#define T 7
static void *
thread(void *arg)
{
assert(write(1, "", 1) == 1);
pause();
return arg;
}
static int
process(void)
{
int fds[2];
pthread_t t;
struct timespec ts = { .tv_nsec = 10000000 };
(void) close(0);
(void) close(1);
if (pipe(fds))
perror_msg_and_fail("pipe");
for (int i = 0; i < T; ++i)
assert(pthread_create(&t, NULL, thread, NULL) == 0);
for (int i = 0; i < T; ++i)
assert(read(0, fds, 1) == 1);
(void) nanosleep(&ts, 0);
return 0;
}
int
main(void)
{
for (int i = 0; i < P; ++i) {
pid_t p = fork();
if (p < 0)
perror_msg_and_fail("fork");
if (p == 0)
return process();
int s;
assert(waitpid(p, &s, 0) == p);
assert(WIFEXITED(s));
if (WEXITSTATUS(s))
return WEXITSTATUS(s);
}
return 0;
}
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