157 lines
3.5 KiB
C
157 lines
3.5 KiB
C
/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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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 <time.h>
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#include <unistd.h>
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#include <sys/time.h>
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static int
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do_test (void)
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{
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pthread_mutex_t m;
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struct timespec ts;
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struct timeval tv;
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struct timeval tv2;
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int err;
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if (pthread_mutex_init (&m, NULL) != 0)
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{
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puts ("mutex_init failed");
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return 1;
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}
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if (pthread_mutex_lock (&m) != 0)
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{
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puts ("mutex_lock failed");
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return 1;
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}
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if (pthread_mutex_trylock (&m) == 0)
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{
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puts ("mutex_trylock succeeded");
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return 1;
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}
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gettimeofday (&tv, NULL);
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TIMEVAL_TO_TIMESPEC (&tv, &ts);
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ts.tv_sec += 2; /* Wait 2 seconds. */
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err = pthread_mutex_timedlock (&m, &ts);
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if (err == 0)
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{
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puts ("timedlock succeeded");
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return 1;
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}
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else if (err != ETIMEDOUT)
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{
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printf ("timedlock error != ETIMEDOUT: %d\n", err);
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return 1;
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}
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else
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{
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int clk_tck = sysconf (_SC_CLK_TCK);
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gettimeofday (&tv2, NULL);
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tv2.tv_sec -= tv.tv_sec;
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tv2.tv_usec -= tv.tv_usec;
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if (tv2.tv_usec < 0)
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{
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tv2.tv_usec += 1000000;
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tv2.tv_sec -= 1;
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}
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/* Be a bit tolerant, add one CLK_TCK. */
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tv2.tv_usec += 1000000 / clk_tck;
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if (tv2.tv_usec >= 1000000)
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{
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tv2.tv_usec -= 1000000;
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++tv2.tv_sec;
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}
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if (tv2.tv_sec < 2)
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{
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printf ("premature timeout: %ld.%06ld difference\n",
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tv2.tv_sec, tv2.tv_usec);
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return 1;
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}
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}
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(void) gettimeofday (&tv, NULL);
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TIMEVAL_TO_TIMESPEC (&tv, &ts);
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ts.tv_sec += 2; /* Wait 2 seconds. */
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/* The following makes the ts value invalid. */
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ts.tv_nsec += 1000000000;
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err = pthread_mutex_timedlock (&m, &ts);
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if (err == 0)
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{
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puts ("2nd timedlock succeeded");
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return 1;
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}
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else if (err != EINVAL)
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{
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printf ("2nd timedlock error != EINVAL: %d\n", err);
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return 1;
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}
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if (pthread_mutex_unlock (&m) != 0)
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{
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puts ("mutex_unlock failed");
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return 1;
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}
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(void) gettimeofday (&tv, NULL);
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TIMEVAL_TO_TIMESPEC (&tv, &ts);
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ts.tv_sec += 2; /* Wait 2 seconds. */
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if (pthread_mutex_timedlock (&m, &ts) != 0)
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{
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puts ("3rd timedlock failed");
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}
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(void) gettimeofday (&tv2, NULL);
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/* Check that timedlock didn't delay. We use a limit of 0.1 secs. */
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timersub (&tv2, &tv, &tv2);
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if (tv2.tv_sec > 0 || tv2.tv_usec > 100000)
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{
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puts ("3rd timedlock didn't return right away");
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exit (1);
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}
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if (pthread_mutex_destroy (&m) != 0)
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{
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puts ("mutex_destroy failed");
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return 1;
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}
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return 0;
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}
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#define TIMEOUT 4
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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