--- /dev/null
+/*
+ * This file is part of count-f strace test.
+ *
+ * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "tests.h"
+#include <assert.h>
+#include <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#define N 32
+#define P 8
+#define T 4
+
+static void *
+thread(void *arg)
+{
+ unsigned int i;
+
+ assert(chdir(".") == 0);
+ for (i = 0; i < N; ++i) {
+ assert(chdir("") == -1);
+ assert(chdir(".") == 0);
+ }
+
+ return NULL;
+}
+
+static int
+process(void)
+{
+ unsigned int i;
+ pthread_t t[T];
+
+ for (i = 0; i < T; ++i) {
+ errno = pthread_create(&t[i], NULL, thread, NULL);
+ if (errno)
+ perror_msg_and_fail("pthread_create");
+ }
+
+ for (i = 0; i < T; ++i) {
+ void *retval;
+ errno = pthread_join(t[i], &retval);
+ if (errno)
+ perror_msg_and_fail("pthread_join");
+ }
+
+ return 0;
+}
+
+int
+main(void)
+{
+ unsigned int i;
+ pid_t p[P];
+
+ for (i = 0; i < P; ++i) {
+ p[i] = fork();
+ if (p[i] < 0)
+ perror_msg_and_fail("fork");
+ if (!p[i])
+ return process();
+ }
+ for (i = 0; i < P; ++i) {
+ int s;
+
+ assert(waitpid(p[i], &s, 0) == p[i]);
+ assert(WIFEXITED(s));
+ if (WEXITSTATUS(s))
+ return WEXITSTATUS(s);
+ }
+
+ return 0;
+}
projects / strace / commitdiff