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-rw-r--r--htl/tests/test-14.c60
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diff --git a/htl/tests/test-14.c b/htl/tests/test-14.c
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+/* Test pthread_mutex_timedlock.
+   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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  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>
+
+int
+main (int argc, char **argv)
+{
+  error_t err;
+  struct timespec ts;
+  pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;
+  struct timeval before, after;
+  int diff;
+
+  gettimeofday (&before, 0);
+  ts.tv_sec = before.tv_sec + 1;
+  ts.tv_nsec = before.tv_usec * 1000;
+
+  printf ("Starting wait @ %d\n", (int) before.tv_sec);
+
+  pthread_mutex_lock (&m);
+  /* A default mutex shall dead lock if locked twice.  As such we do
+     not need spawn a second thread.  */
+  err = pthread_mutex_timedlock (&m, &ts);
+  assert (err == ETIMEDOUT);
+
+  gettimeofday (&after, 0);
+
+  printf ("End wait @ %d\n", (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;
+}