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-rw-r--r--nptl/tst-mutex5.c118
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+/* Copyright (C) 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <time.h>
+#include <unistd.h>
+#include <sys/time.h>
+
+
+static int
+do_test (void)
+{
+ pthread_mutex_t m;
+ struct timespec ts;
+ struct timeval tv;
+ struct timeval tv2;
+ int err;
+
+ if (pthread_mutex_init (&m, NULL) != 0)
+ {
+ puts ("mutex_init failed");
+ return 1;
+ }
+
+ if (pthread_mutex_lock (&m) != 0)
+ {
+ puts ("mutex_lock failed");
+ return 1;
+ }
+
+ if (pthread_mutex_trylock (&m) == 0)
+ {
+ puts ("mutex_trylock succeeded");
+ return 1;
+ }
+
+ gettimeofday (&tv, NULL);
+ TIMEVAL_TO_TIMESPEC (&tv, &ts);
+
+ ts.tv_sec += 2; /* Wait 2 seconds. */
+
+ err = pthread_mutex_timedlock (&m, &ts);
+ if (err == 0)
+ {
+ puts ("timed_lock succeeded");
+ return 1;
+ }
+ else if (err != ETIMEDOUT)
+ {
+ printf ("timed_lock error != ETIMEDOUT: %d\n", err);
+ return 1;
+ }
+ else
+ {
+ int clk_tck = sysconf (_SC_CLK_TCK);
+
+ gettimeofday (&tv2, NULL);
+
+ tv2.tv_sec -= tv.tv_sec;
+ tv2.tv_usec -= tv.tv_usec;
+ if (tv2.tv_usec < 0)
+ {
+ tv2.tv_usec += 1000000;
+ tv2.tv_sec -= 1;
+ }
+
+ /* Be a bit tolerant, add one CLK_TCK. */
+ tv2.tv_usec += 1000000 / clk_tck;
+ if (tv2.tv_usec >= 1000000)
+ {
+ tv2.tv_usec -= 1000000;
+ ++tv2.tv_sec;
+ }
+
+ if (tv2.tv_sec < 2)
+ {
+ printf ("premature timeout: %ld.%06ld difference\n",
+ tv2.tv_sec, tv2.tv_usec);
+ return 1;
+ }
+ }
+
+ if (pthread_mutex_unlock (&m) != 0)
+ {
+ puts ("mutex_unlock failed");
+ return 1;
+ }
+
+ if (pthread_mutex_destroy (&m) != 0)
+ {
+ puts ("mutex_destroy failed");
+ return 1;
+ }
+
+ return 0;
+}
+
+#define TIMEOUT 4
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"