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-rw-r--r--nptl/tst-rwlock7.c161
1 files changed, 161 insertions, 0 deletions
diff --git a/nptl/tst-rwlock7.c b/nptl/tst-rwlock7.c
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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 <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/time.h>
+
+
+static int kind[] =
+  {
+    PTHREAD_RWLOCK_PREFER_READER_NP,
+    PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP,
+    PTHREAD_RWLOCK_PREFER_WRITER_NP,
+  };
+
+
+static void *
+tf (void *arg)
+{
+  pthread_rwlock_t *r = arg;
+
+  /* Timeout: 0.3 secs.  */
+  struct timeval tv;
+  (void) gettimeofday (&tv, NULL);
+
+  struct timespec ts;
+  TIMEVAL_TO_TIMESPEC (&tv, &ts);
+  ts.tv_nsec += 300000000;
+  if (ts.tv_nsec >= 1000000000)
+    {
+      ts.tv_nsec -= 1000000000;
+      ++ts.tv_sec;
+    }
+
+  int err = pthread_rwlock_timedwrlock (r, &ts);
+  if (err == 0)
+    {
+      puts ("rwlock_timedwrlock returned");
+      pthread_exit ((void *) 1l);
+    }
+
+  if (err != ETIMEDOUT)
+    {
+      printf ("err = %s (%d), expected %s (%d)\n",
+	      strerror (err), err, strerror (ETIMEDOUT), ETIMEDOUT);
+      pthread_exit ((void *) 1l);
+    }
+
+  struct timeval tv2;
+  (void) gettimeofday (&tv2, NULL);
+
+  timersub (&tv2, &tv, &tv);
+
+  if (tv.tv_usec < 200000)
+    {
+      puts ("timeout too short");
+      pthread_exit ((void *) 1l);
+    }
+
+  return NULL;
+}
+
+
+static int
+do_test (void)
+{
+  int cnt;
+  for (cnt = 0; cnt < sizeof (kind) / sizeof (kind[0]); ++cnt)
+    {
+      pthread_rwlock_t r;
+      pthread_rwlockattr_t a;
+
+      if (pthread_rwlockattr_init (&a) != 0)
+	{
+	  printf ("round %d: rwlockattr_t failed\n", cnt);
+	  exit (1);
+	}
+
+      if (pthread_rwlockattr_setkind_np (&a, kind[cnt]) != 0)
+	{
+	  printf ("round %d: rwlockattr_setkind failed\n", cnt);
+	  exit (1);
+	}
+
+      if (pthread_rwlock_init (&r, &a) != 0)
+	{
+	  printf ("round %d: rwlock_init failed\n", cnt);
+	  exit (1);
+	}
+
+      if (pthread_rwlockattr_destroy (&a) != 0)
+	{
+	  printf ("round %d: rwlockattr_destroy failed\n", cnt);
+	  exit (1);
+	}
+
+      struct timeval tv;
+      (void) gettimeofday (&tv, NULL);
+
+      struct timespec ts;
+      TIMEVAL_TO_TIMESPEC (&tv, &ts);
+
+      ++ts.tv_sec;
+
+      /* Get a read lock.  */
+      if (pthread_rwlock_timedrdlock (&r, &ts) != 0)
+	{
+	  printf ("round %d: rwlock_wrlock failed\n", cnt);
+	  exit (1);
+	}
+
+      pthread_t th;
+      if (pthread_create (&th, NULL, tf, &r) != 0)
+	{
+	  printf ("round %d: create failed\n", cnt);
+	  exit (1);
+	}
+
+      void *status;
+      if (pthread_join (th, &status) != 0)
+	{
+	  printf ("round %d: join failed\n", cnt);
+	  exit (1);
+	}
+      if (status != NULL)
+	{
+	  printf ("failure in round %d\n", cnt);
+	  exit (1);
+	}
+
+      if (pthread_rwlock_destroy (&r) != 0)
+	{
+	  printf ("round %d: rwlock_destroy failed\n", cnt);
+	  exit (1);
+	}
+    }
+
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"