1 files changed, 79 insertions, 0 deletions
diff --git a/cpukit/rtems/src/partreturnbuffer.c b/cpukit/rtems/src/partreturnbuffer.c
new file mode 100644
index 0000000000..8b83ab3cec
--- /dev/null
+++ b/cpukit/rtems/src/partreturnbuffer.c
@@ -0,0 +1,79 @@
+/*
+ *  Partition Manager
+ *
+ *
+ *  COPYRIGHT (c) 1989-2007.
+ *  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 <rtems/system.h>
+#include <rtems/rtems/status.h>
+#include <rtems/rtems/support.h>
+#include <rtems/score/address.h>
+#include <rtems/score/object.h>
+#include <rtems/rtems/part.h>
+#include <rtems/score/thread.h>
+#include <rtems/score/sysstate.h>
+
+/*PAGE
+ *
+ *  rtems_partition_return_buffer
+ *
+ *  This directive will return the given buffer to the specified
+ *  buffer partition.
+ *
+ *  Input parameters:
+ *    id     - partition id
+ *    buffer - pointer to buffer address
+ *
+ *  Output parameters:
+ *    RTEMS_SUCCESSFUL - if successful
+ *    error code - if unsuccessful
+ */
+
+rtems_status_code rtems_partition_return_buffer(
+  rtems_id  id,
+  void     *buffer
+)
+{
+  register Partition_Control *the_partition;
+  Objects_Locations           location;
+
+  the_partition = _Partition_Get( id, &location );
+  switch ( location ) {
+
+    case OBJECTS_LOCAL:
+      if ( _Partition_Is_buffer_valid( buffer, the_partition ) ) {
+        _Partition_Free_buffer( the_partition, buffer );
+        the_partition->number_of_used_blocks -= 1;
+        _Thread_Enable_dispatch();
+        return RTEMS_SUCCESSFUL;
+      }
+      _Thread_Enable_dispatch();
+      return RTEMS_INVALID_ADDRESS;
+
+#if defined(RTEMS_MULTIPROCESSING)
+    case OBJECTS_REMOTE:
+      return _Partition_MP_Send_request_packet(
+          PARTITION_MP_RETURN_BUFFER_REQUEST,
+          id,
+          buffer
+        );
+#endif
+
+    case OBJECTS_ERROR:
+      break;
+  }
+
+  return RTEMS_INVALID_ID;
+}