Update.

2003-02-10  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/linux/i386/pthread_once.S (clear_once_control): Fix
	clearing of control variable.
	* Makefile (tests): Add tst-once3.
	* tst-once3.c: New file.

1 files changed, 141 insertions, 0 deletions

diff --git a/nptl/tst-once3.c b/nptl/tst-once3.c
new file mode 100644
index 0000000000..802864c09a
--- /dev/null
+++ b/nptl/tst-once3.c
@@ -0,0 +1,141 @@
+/* Copyright (C) 2002, 2003 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 <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+
+#define N 100
+
+static pthread_once_t once = PTHREAD_ONCE_INIT;
+
+static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
+static pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER;
+
+static pthread_barrier_t bar;
+
+static int global;
+
+static void
+once_handler1 (void)
+{
+  if (pthread_mutex_lock (&mut) != 0)
+    {
+      puts ("once_handler1: mutex_lock failed");
+      exit (1);
+    }
+
+  int r = pthread_barrier_wait (&bar);
+  if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
+    {
+      puts ("once_handler1: barrier_wait failed");
+      exit (1);
+    }
+
+  pthread_cond_wait (&cond, &mut);
+
+  /* We should never get here.  */
+}
+
+static void
+once_handler2 (void)
+{
+  global = 1;
+}
+
+
+static void *
+tf (void *arg)
+{
+  pthread_once (&once, once_handler1);
+
+  /* We should never get here.  */
+  puts ("pthread_once in tf returned");
+  exit (1);
+}
+
+
+static int
+do_test (void)
+{
+  pthread_t th;
+
+  if (pthread_barrier_init (&bar, NULL, 2) != 0)
+    {
+      puts ("barrier_init failed");
+      exit (1);
+    }
+
+  if (pthread_create (&th, NULL, tf, NULL) != 0)
+    {
+      puts ("first create failed");
+      exit (1);
+    }
+
+  int r = pthread_barrier_wait (&bar);
+  if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
+    {
+      puts ("barrier_wait failed");
+      exit (1);
+    }
+
+  if (pthread_mutex_lock (&mut) != 0)
+    {
+      puts ("mutex_lock failed");
+      exit (1);
+    }
+  /* We unlock the mutex so that we catch the case where the pthread_cond_wait
+     call incorrectly resumes and tries to get the mutex.  */
+  if (pthread_mutex_unlock (&mut) != 0)
+    {
+      puts ("mutex_unlock failed");
+      exit (1);
+    }
+
+  /* Cancel the thread.  */
+  if (pthread_cancel (th) != 0)
+    {
+      puts ("cancel failed");
+      exit (1);
+    }
+
+  void *result;
+  pthread_join (th, &result);
+  if (result != PTHREAD_CANCELED)
+    {
+      puts ("join didn't return PTHREAD_CANCELED");
+      exit (1);
+    }
+
+  pthread_once (&once, once_handler2);
+
+  if (global != 1)
+    {
+      puts ("global still 0");
+      exit (1);
+    }
+
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#define TIMEOUT 4
+#include "../test-skeleton.c"