From 842db5f391f323b49ff2fc6157f89135d4662506 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Mon, 17 May 1999 23:15:20 +0000
Subject: Split Partition Manager into one routine per file.

---
 cpukit/rtems/src/partreturnbuffer.c | 76 +++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 cpukit/rtems/src/partreturnbuffer.c

(limited to 'cpukit/rtems/src/partreturnbuffer.c')

diff --git a/cpukit/rtems/src/partreturnbuffer.c b/cpukit/rtems/src/partreturnbuffer.c
new file mode 100644
index 0000000000..3b68e53bff
--- /dev/null
+++ b/cpukit/rtems/src/partreturnbuffer.c
@@ -0,0 +1,76 @@
+/*
+ *  Partition Manager
+ *
+ *
+ *  COPYRIGHT (c) 1989-1998.
+ *  On-Line Applications Research Corporation (OAR).
+ *  Copyright assigned to U.S. Government, 1994.
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#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(
+  Objects_Id  id,
+  void       *buffer
+)
+{
+  register Partition_Control *the_partition;
+  Objects_Locations           location;
+
+  the_partition = _Partition_Get( id, &location );
+  switch ( location ) {
+
+    case OBJECTS_REMOTE:
+#if defined(RTEMS_MULTIPROCESSING)
+      return _Partition_MP_Send_request_packet(
+          PARTITION_MP_RETURN_BUFFER_REQUEST,
+          id,
+          buffer
+        );
+#endif
+
+    case OBJECTS_ERROR:
+      return RTEMS_INVALID_ID;
+
+    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;
+  }
+
+  return RTEMS_INTERNAL_ERROR;   /* unreached - only to remove warnings */
+}
-- 
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