From 5aa64518b5bb046469386afbe530957dbb28a603 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Mon, 17 May 1999 22:39:20 +0000
Subject: Split Region Manager into one routine per file.

---
 cpukit/rtems/src/regioncreate.c | 106 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 106 insertions(+)
 create mode 100644 cpukit/rtems/src/regioncreate.c

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

diff --git a/cpukit/rtems/src/regioncreate.c b/cpukit/rtems/src/regioncreate.c
new file mode 100644
index 0000000000..49be2c5802
--- /dev/null
+++ b/cpukit/rtems/src/regioncreate.c
@@ -0,0 +1,106 @@
+/*
+ *  Region 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/object.h>
+#include <rtems/rtems/options.h>
+#include <rtems/rtems/region.h>
+#include <rtems/score/states.h>
+#include <rtems/score/thread.h>
+
+/*PAGE
+ *
+ *  rtems_region_create
+ *
+ *  This directive creates a region of physical contiguous memory area
+ *  from which variable sized segments can be allocated.
+ *
+ *  Input parameters:
+ *    name             - user defined region name
+ *    starting_address - physical start address of region
+ *    length           - physical length in bytes
+ *    page_size        - page size in bytes
+ *    attribute_set    - region attributes
+ *    id               - address of region id to set
+ *
+ *  Output parameters:
+ *    id       - region id
+ *    RTEMS_SUCCESSFUL - if successful
+ *    error code - if unsuccessful
+ */
+
+rtems_status_code rtems_region_create(
+  rtems_name          name,
+  void               *starting_address,
+  unsigned32          length,
+  unsigned32          page_size,
+  rtems_attribute  attribute_set,
+  Objects_Id         *id
+)
+{
+  Region_Control *the_region;
+
+  if ( !rtems_is_name_valid( name ) )
+    return RTEMS_INVALID_NAME;
+
+  if ( !_Addresses_Is_aligned( starting_address ) )
+    return RTEMS_INVALID_ADDRESS;
+
+  _Thread_Disable_dispatch();             /* to prevent deletion */
+
+  the_region = _Region_Allocate();
+
+  if ( !the_region ) {
+    _Thread_Enable_dispatch();
+    return RTEMS_TOO_MANY;
+  }
+
+  the_region->maximum_segment_size =
+    _Heap_Initialize(&the_region->Memory, starting_address, length, page_size);
+
+  if ( !the_region->maximum_segment_size ) {
+    _Region_Free( the_region );
+    _Thread_Enable_dispatch();
+    return RTEMS_INVALID_SIZE;
+  }
+
+  the_region->starting_address      = starting_address;
+  the_region->length                = length;
+  the_region->page_size             = page_size;
+  the_region->attribute_set         = attribute_set;
+  the_region->number_of_used_blocks = 0;
+
+  _Thread_queue_Initialize(
+    &the_region->Wait_queue,
+    OBJECTS_RTEMS_REGIONS,
+    _Attributes_Is_priority( attribute_set ) ? 
+       THREAD_QUEUE_DISCIPLINE_PRIORITY : THREAD_QUEUE_DISCIPLINE_FIFO,
+    STATES_WAITING_FOR_SEGMENT,
+#if defined(RTEMS_MULTIPROCESSING)
+    _Region_MP_Send_extract_proxy,
+#else
+    NULL,
+#endif
+    RTEMS_TIMEOUT
+  );
+
+  _Objects_Open( &_Region_Information, &the_region->Object, &name );
+
+  *id = the_region->Object.id;
+  _Thread_Enable_dispatch();
+  return RTEMS_SUCCESSFUL;
+}
-- 
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