From 047d67ab257600533bc3a1047a2a54d287dcc2d2 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Wed, 15 Nov 2006 14:08:49 +0000
Subject: 2006-11-15	Joel Sherrill <joel.sherrill@oarcorp.com>

	* libcsupport/src/termios.c, posix/Makefile.am, posix/preinstall.am,
	posix/include/rtems/posix/config.h, posix/include/rtems/posix/time.h,
	sapi/src/posixapi.c, score/Makefile.am, score/preinstall.am,
	score/include/rtems/score/corerwlock.h,
	score/include/rtems/score/threadq.h,
	score/src/corerwlockobtainread.c, score/src/threadqenqueue.c,
	score/src/threadqtimeout.c: Adding POSIX barriers, POSIX spinlocks,
	and partial implementation of POSIX rwlocks.
	* posix/include/rtems/posix/barrier.h,
	posix/include/rtems/posix/rwlock.h,
	posix/include/rtems/posix/spinlock.h,
	posix/inline/rtems/posix/barrier.inl,
	posix/inline/rtems/posix/rwlock.inl,
	posix/inline/rtems/posix/spinlock.inl,
	posix/src/barrierattrdestroy.c, posix/src/barrierattrgetpshared.c,
	posix/src/barrierattrinit.c, posix/src/barrierattrsetpshared.c,
	posix/src/pbarrier.c, posix/src/pbarrierdestroy.c,
	posix/src/pbarrierinit.c, posix/src/pbarriertranslatereturncode.c,
	posix/src/pbarrierwait.c, posix/src/prwlock.c,
	posix/src/prwlockdestroy.c, posix/src/prwlockinit.c,
	posix/src/prwlockrdlock.c, posix/src/prwlocktimedrdlock.c,
	posix/src/prwlocktimedwrlock.c,
	posix/src/prwlocktranslatereturncode.c, posix/src/prwlocktryrdlock.c,
	posix/src/prwlocktrywrlock.c, posix/src/prwlockunlock.c,
	posix/src/prwlockwrlock.c, posix/src/pspin.c,
	posix/src/pspindestroy.c, posix/src/pspininit.c,
	posix/src/pspinlock.c, posix/src/pspinlocktranslatereturncode.c,
	posix/src/pspintrylock.c, posix/src/pspinunlock.c,
	posix/src/rwlockattrdestroy.c, posix/src/rwlockattrgetpshared.c,
	posix/src/rwlockattrinit.c, posix/src/rwlockattrsetpshared.c: New files.
---
 cpukit/posix/src/prwlockdestroy.c | 73 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 cpukit/posix/src/prwlockdestroy.c

(limited to 'cpukit/posix/src/prwlockdestroy.c')

diff --git a/cpukit/posix/src/prwlockdestroy.c b/cpukit/posix/src/prwlockdestroy.c
new file mode 100644
index 0000000000..6ba858d1d9
--- /dev/null
+++ b/cpukit/posix/src/prwlockdestroy.c
@@ -0,0 +1,73 @@
+/*
+ *  POSIX RWLock Manager -- Destroy a RWLock
+ *
+ *  COPYRIGHT (c) 1989-2006.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <pthread.h>
+#include <errno.h>
+
+#include <rtems/system.h>
+#include <rtems/posix/rwlock.h>
+
+/*
+ *  pthread_rwlock_destroy
+ *
+ *  This directive allows a thread to delete a rwlock specified by
+ *  the rwlock id.  The rwlock is freed back to the inactive
+ *  rwlock chain.
+ *
+ *  Input parameters:
+ *    rwlock - rwlock id
+ *
+ *  Output parameters:
+ *    0           - if successful
+ *    error code  - if unsuccessful
+ */
+
+int pthread_rwlock_destroy(
+  pthread_rwlock_t *rwlock
+)
+{
+  POSIX_RWLock_Control *the_rwlock = NULL;
+  Objects_Locations      location;
+
+  if ( !rwlock )
+    return EINVAL;
+
+  the_rwlock = _POSIX_RWLock_Get( rwlock, &location );
+  switch ( location ) {
+
+    case OBJECTS_REMOTE:
+    case OBJECTS_ERROR:
+      return EINVAL;
+
+    case OBJECTS_LOCAL:
+#if 0
+      if ( the_rwlock->RWLock.number_of_waiting_threads != 0 ) {
+        _Thread_Enable_dispatch();
+        return EBUSY;
+      }
+#endif
+
+      _Objects_Close( &_POSIX_RWLock_Information, &the_rwlock->Object );
+
+      _POSIX_RWLock_Free( the_rwlock );
+
+      _Thread_Enable_dispatch();
+      return 0;
+  }
+
+  return POSIX_BOTTOM_REACHED();
+}
-- 
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