83 lines
1.2 KiB
C
83 lines
1.2 KiB
C
/*
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* This file is part of count-f strace test.
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*
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* Copyright (c) 2016-2018 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "tests.h"
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#include <assert.h>
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#include <errno.h>
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#define N 32
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#define P 8
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#define T 4
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static void *
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thread(void *arg)
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{
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unsigned int i;
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assert(chdir(".") == 0);
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for (i = 0; i < N; ++i) {
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assert(chdir("") == -1);
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assert(chdir(".") == 0);
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}
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return NULL;
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}
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static int
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process(void)
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{
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unsigned int i;
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pthread_t t[T];
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for (i = 0; i < T; ++i) {
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errno = pthread_create(&t[i], NULL, thread, NULL);
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if (errno)
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perror_msg_and_fail("pthread_create");
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}
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for (i = 0; i < T; ++i) {
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void *retval;
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errno = pthread_join(t[i], &retval);
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if (errno)
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perror_msg_and_fail("pthread_join");
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}
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return 0;
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}
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int
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main(void)
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{
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unsigned int i;
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pid_t p[P];
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for (i = 0; i < P; ++i) {
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p[i] = fork();
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if (p[i] < 0)
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perror_msg_and_fail("fork");
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if (!p[i])
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return process();
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}
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for (i = 0; i < P; ++i) {
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int s;
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assert(waitpid(p[i], &s, 0) == p[i]);
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assert(WIFEXITED(s));
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if (WEXITSTATUS(s))
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return WEXITSTATUS(s);
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}
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return 0;
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}
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