From 0ecb606cb6cf65de1d9fc8a919bceb4be476c602 Mon Sep 17 00:00:00 2001
From: Jakub Jelinek <jakub@redhat.com>
Date: Thu, 12 Jul 2007 18:26:36 +0000
Subject: 2.5-18.1

---
 nptl/tst-mutex4.c | 99 +++++++++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 93 insertions(+), 6 deletions(-)

(limited to 'nptl/tst-mutex4.c')

diff --git a/nptl/tst-mutex4.c b/nptl/tst-mutex4.c
index 0ce7313caf..9699c2db45 100644
--- a/nptl/tst-mutex4.c
+++ b/nptl/tst-mutex4.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2004, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -42,6 +42,8 @@ do_test (void)
   char *p;
   int err;
   int s;
+  pthread_barrier_t *b;
+  pthread_barrierattr_t ba;
 
   fd = mkstemp (tmpfname);
   if (fd == -1)
@@ -70,9 +72,12 @@ do_test (void)
       return 1;
     }
 
-  m = (pthread_mutex_t *) (((uintptr_t) mem + __alignof (pthread_mutex_t))
+  m = (pthread_mutex_t *) (((uintptr_t) mem + __alignof (pthread_mutex_t) - 1)
 			   & ~(__alignof (pthread_mutex_t) - 1));
-  p = (char *) (m + 1);
+  b = (pthread_barrier_t *) (((uintptr_t) (m + 1)
+			      + __alignof (pthread_barrier_t) - 1)
+			     & ~(__alignof (pthread_barrier_t) - 1));
+  p = (char *) (b + 1);
 
   if (pthread_mutexattr_init (&a) != 0)
     {
@@ -110,8 +115,23 @@ do_test (void)
       return 1;
     }
 
-  if (pthread_mutex_init (m, &a) != 0)
+#ifdef ENABLE_PI
+  if (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_INHERIT) != 0)
     {
+      puts ("pthread_mutexattr_setprotocol failed");
+      return 1;
+    }
+#endif
+
+  if ((err = pthread_mutex_init (m, &a)) != 0)
+    {
+#ifdef ENABLE_PI
+      if (err == ENOTSUP)
+	{
+	  puts ("PI mutexes unsupported");
+	  return 0;
+	}
+#endif
       puts ("mutex_init failed");
       return 1;
     }
@@ -128,6 +148,30 @@ do_test (void)
       return 1;
     }
 
+  if (pthread_barrierattr_init (&ba) != 0)
+    {
+      puts ("barrierattr_init failed");
+      return 1;
+    }
+
+  if (pthread_barrierattr_setpshared (&ba, PTHREAD_PROCESS_SHARED) != 0)
+    {
+      puts ("barrierattr_setpshared failed");
+      return 1;
+    }
+
+  if (pthread_barrier_init (b, &ba, 2) != 0)
+    {
+      puts ("barrier_init failed");
+      return 1;
+    }
+
+  if (pthread_barrierattr_destroy (&ba) != 0)
+    {
+      puts ("barrierattr_destroy failed");
+      return 1;
+    }
+
   err = pthread_mutex_trylock (m);
   if (err == 0)
     {
@@ -142,6 +186,12 @@ do_test (void)
 
   *p = 0;
 
+  if (pthread_mutex_unlock (m) != 0)
+    {
+      puts ("parent: 1st mutex_unlock failed");
+      return 1;
+    }
+
   puts ("going to fork now");
   pid = fork ();
   if (pid == -1)
@@ -151,7 +201,19 @@ do_test (void)
     }
   else if (pid == 0)
     {
-      /* Play some lock ping-pong.  It's our turn to unlock first.  */
+      if (pthread_mutex_lock (m) != 0)
+	{
+	  puts ("child: mutex_lock failed");
+	  return 1;
+	}
+
+      int e = pthread_barrier_wait (b);
+      if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
+	{
+	  puts ("child: barrier_wait failed");
+	  return 1;
+	}
+
       if ((*p)++ != 0)
 	{
 	  puts ("child: *p != 0");
@@ -160,7 +222,7 @@ do_test (void)
 
       if (pthread_mutex_unlock (m) != 0)
 	{
-	  puts ("child: 1st mutex_unlock failed");
+	  puts ("child: mutex_unlock failed");
 	  return 1;
 	}
 
@@ -168,6 +230,13 @@ do_test (void)
     }
   else
     {
+      int e = pthread_barrier_wait (b);
+      if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
+	{
+	  puts ("parent: barrier_wait failed");
+	  return 1;
+	}
+
       if (pthread_mutex_lock (m) != 0)
 	{
 	  puts ("parent: 2nd mutex_lock failed");
@@ -180,6 +249,24 @@ do_test (void)
 	  return 1;
 	}
 
+      if (pthread_mutex_unlock (m) != 0)
+	{
+	  puts ("parent: 2nd mutex_unlock failed");
+	  return 1;
+	}
+
+      if (pthread_mutex_destroy (m) != 0)
+	{
+	  puts ("mutex_destroy failed");
+	  return 1;
+	}
+
+      if (pthread_barrier_destroy (b) != 0)
+	{
+	  puts ("barrier_destroy failed");
+	  return 1;
+	}
+
       puts ("parent done");
     }
 
-- 
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