cvs update pthreads

1 files changed, 69 insertions, 81 deletions

diff --git a/pthreads/pthread_barrier_init.c b/pthreads/pthread_barrier_init.c
index dc1b50c6f..59a30f4a4 100644
--- a/pthreads/pthread_barrier_init.c
+++ b/pthreads/pthread_barrier_init.c
@@ -1,81 +1,69 @@
-/*
- * pthread_barrier_init.c
- *
- * Description:
- * This translation unit implements barrier primitives.
- *
- * --------------------------------------------------------------------------
- *
- *      Pthreads-win32 - POSIX Threads Library for Win32
- *      Copyright(C) 1998 John E. Bossom
- *      Copyright(C) 1999,2005 Pthreads-win32 contributors
- * 
- *      Contact Email: rpj@callisto.canberra.edu.au
- * 
- *      The current list of contributors is contained
- *      in the file CONTRIBUTORS included with the source
- *      code distribution. The list can also be seen at the
- *      following World Wide Web location:
- *      http://sources.redhat.com/pthreads-win32/contributors.html
- * 
- *      This 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 of the License, or (at your option) any later version.
- * 
- *      This 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 this library in the file COPYING.LIB;
- *      if not, write to the Free Software Foundation, Inc.,
- *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
- */
-
-#include "pthread.h"
-#include "implement.h"
-
-
-int
-pthread_barrier_init (pthread_barrier_t * barrier,
-		      const pthread_barrierattr_t * attr, unsigned int count)
-{
-  pthread_barrier_t b;
-
-  if (barrier == NULL || count == 0)
-    {
-      return EINVAL;
-    }
-
-  if (NULL != (b = (pthread_barrier_t) calloc (1, sizeof (*b))))
-    {
-      b->pshared = (attr != NULL && *attr != NULL
-		    ? (*attr)->pshared : PTHREAD_PROCESS_PRIVATE);
-
-      b->nCurrentBarrierHeight = b->nInitialBarrierHeight = count;
-      b->iStep = 0;
-
-      /*
-       * Two semaphores are used in the same way as two stepping
-       * stones might be used in crossing a stream. Once all
-       * threads are safely on one stone, the other stone can
-       * be moved ahead, and the threads can start moving to it.
-       * If some threads decide to eat their lunch before moving
-       * then the other threads have to wait.
-       */
-      if (0 == sem_init (&(b->semBarrierBreeched[0]), b->pshared, 0))
-	{
-	  if (0 == sem_init (&(b->semBarrierBreeched[1]), b->pshared, 0))
-	    {
-	      *barrier = b;
-	      return 0;
-	    }
-	  (void) sem_destroy (&(b->semBarrierBreeched[0]));
-	}
-      (void) free (b);
-    }
-
-  return ENOMEM;
-}
+/*

+ * pthread_barrier_init.c

+ *

+ * Description:

+ * This translation unit implements barrier primitives.

+ *

+ * --------------------------------------------------------------------------

+ *

+ *      Pthreads-win32 - POSIX Threads Library for Win32

+ *      Copyright(C) 1998 John E. Bossom

+ *      Copyright(C) 1999,2005 Pthreads-win32 contributors

+ * 

+ *      Contact Email: rpj@callisto.canberra.edu.au

+ * 

+ *      The current list of contributors is contained

+ *      in the file CONTRIBUTORS included with the source

+ *      code distribution. The list can also be seen at the

+ *      following World Wide Web location:

+ *      http://sources.redhat.com/pthreads-win32/contributors.html

+ * 

+ *      This 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 of the License, or (at your option) any later version.

+ * 

+ *      This 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 this library in the file COPYING.LIB;

+ *      if not, write to the Free Software Foundation, Inc.,

+ *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA

+ */

+

+#include "pthread.h"

+#include "implement.h"

+

+

+int

+pthread_barrier_init (pthread_barrier_t * barrier,

+		      const pthread_barrierattr_t * attr, unsigned int count)

+{

+  pthread_barrier_t b;

+

+  if (barrier == NULL || count == 0)

+    {

+      return EINVAL;

+    }

+

+  if (NULL != (b = (pthread_barrier_t) calloc (1, sizeof (*b))))

+    {

+      b->pshared = (attr != NULL && *attr != NULL

+		    ? (*attr)->pshared : PTHREAD_PROCESS_PRIVATE);

+

+      b->nCurrentBarrierHeight = b->nInitialBarrierHeight = count;

+      b->lock = 0;

+

+      if (0 == sem_init (&(b->semBarrierBreeched), b->pshared, 0))

+	    {

+	      *barrier = b;

+	      return 0;

+	    }

+      (void) free (b);

+    }

+

+  return ENOMEM;

+}