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-rw-r--r--htl/tests/test-15.c102
1 files changed, 102 insertions, 0 deletions
diff --git a/htl/tests/test-15.c b/htl/tests/test-15.c
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+/* Test pthread_rwlock_timedrdlock and pthread_rwlock_timedwrlock.
+ Copyright (C) 2000-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#define _GNU_SOURCE
+
+#include <pthread.h>
+#include <stdio.h>
+#include <assert.h>
+#include <error.h>
+#include <errno.h>
+#include <sys/time.h>
+
+#define THREADS 10
+
+pthread_rwlock_t rwlock;
+
+void *
+test (void *arg)
+{
+ error_t err;
+ int foo = (int) arg;
+ struct timespec ts;
+ struct timeval before, after;
+ int diff;
+
+ gettimeofday (&before, 0);
+ ts.tv_sec = before.tv_sec + 1;
+ ts.tv_nsec = before.tv_usec * 1000;
+
+ printf ("Thread %d starting wait @ %d\n", pthread_self (),
+ (int) before.tv_sec);
+
+ if (foo % 2 == 0)
+ err = pthread_rwlock_timedrdlock (&rwlock, &ts);
+ else
+ err = pthread_rwlock_timedwrlock (&rwlock, &ts);
+
+ assert (err == ETIMEDOUT);
+
+ gettimeofday (&after, 0);
+
+ printf ("Thread %d ending wait @ %d\n", pthread_self (), (int) after.tv_sec);
+
+ diff = after.tv_sec * 1000000 + after.tv_usec
+ - before.tv_sec * 1000000 - before.tv_usec;
+
+ if (diff < 900000 || diff > 1100000)
+ error (1, EGRATUITOUS, "pthread_mutex_timedlock waited %d us", diff);
+
+ return 0;
+}
+
+int
+main (int argc, char **argv)
+{
+ error_t err;
+ int i;
+ pthread_t tid[THREADS];
+
+ err = pthread_rwlock_init (&rwlock, 0);
+ if (err)
+ error (1, err, "pthread_rwlock_init");
+
+ /* Lock it so all the threads will block. */
+ err = pthread_rwlock_wrlock (&rwlock);
+ assert (err == 0);
+
+ for (i = 0; i < THREADS; i++)
+ {
+ err = pthread_create (&tid[i], 0, test, (void *) i);
+ if (err)
+ error (1, err, "pthread_create");
+ }
+
+ for (i = 0; i < THREADS; i++)
+ {
+ void *ret;
+
+ err = pthread_join (tid[i], &ret);
+ if (err)
+ error (1, err, "pthread_join");
+
+ assert (ret == 0);
+ }
+
+ return 0;
+}