1 files changed, 114 insertions, 0 deletions
diff --git a/htl/tests/test-6.c b/htl/tests/test-6.c
new file mode 100644
index 0000000000..e25d419e6f
--- /dev/null
+++ b/htl/tests/test-6.c
@@ -0,0 +1,114 @@
+/* Test barriers.
+   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 <error.h>
+#include <assert.h>
+#include <errno.h>
+
+#define THREADS 500
+#define WAITS 3
+
+void *
+dowait (void *arg)
+{
+  pthread_barrier_t *barrier = arg;
+  int ret;
+
+  ret = pthread_barrier_wait (barrier);
+  printf ("%d ", pthread_self ());
+  return (void *) ret;
+}
+
+int
+main (int argc, char **argv)
+{
+  pthread_barrierattr_t attr;
+  pthread_barrier_t barrier;
+
+  int i, j;
+  error_t err;
+  pthread_t tid[THREADS];
+
+  int havesyncs;
+
+  err = pthread_barrierattr_init (&attr);
+  if (err)
+    error (1, err, "pthread_barrierattr_init");
+
+  err = pthread_barrierattr_getpshared (&attr, &i);
+  if (err)
+    error (1, err, "pthread_barrierattr_getpshared");
+  assert (i == PTHREAD_PROCESS_PRIVATE || i == PTHREAD_PROCESS_SHARED);
+
+  err = pthread_barrierattr_setpshared (&attr, PTHREAD_PROCESS_PRIVATE);
+  if (err)
+    error (1, err, "pthread_barrierattr_setpshared");
+
+  err = pthread_barrier_init (&barrier, &attr, THREADS + 1);
+  if (err)
+    error (1, err, "pthread_barrier_init");
+
+  for (j = 0; j < WAITS; j++)
+    {
+
+      for (i = 0; i < THREADS; i++)
+	{
+	  err = pthread_create (&tid[i], 0, dowait, &barrier);
+	  if (err)
+	    error (1, err, "pthread_create (%d)", i);
+	}
+
+      printf ("Manager will now call pthread_barrier_wait.\n");
+
+      havesyncs
+	  = pthread_barrier_wait (&barrier) == PTHREAD_BARRIER_SERIAL_THREAD
+	  ? 1 : 0;
+
+      for (i = THREADS - 1; i >= 0; i--)
+	{
+	  void *ret;
+	  err = pthread_join (tid[i], &ret);
+	  if (err)
+	    error (1, err, "pthread_join");
+
+	  switch ((int) ret)
+	    {
+	    case 0:
+	      break;
+
+	    case PTHREAD_BARRIER_SERIAL_THREAD:
+	      havesyncs++;
+	      break;
+
+	    default:
+	      assert (!"Unknown value returned from pthread_barrier_wait.");
+	      break;
+	    }
+	}
+
+      printf ("\n");
+
+      assert (havesyncs == 1);
+    }
+
+  return 0;
+}