2006-09-25 Joel Sherrill <joel.sherrill@oarcorp.com>

	* rtems/Makefile.am, rtems/preinstall.am, rtems/include/rtems.h,
	rtems/include/rtems/rtems/attr.h, rtems/include/rtems/rtems/config.h,
	rtems/inline/rtems/rtems/attr.inl, rtems/macros/rtems/rtems/attr.inl:
	Add Classic API Barriers.
	* rtems/include/rtems/rtems/barrier.h,
	rtems/include/rtems/rtems/barriermp.h,
	rtems/inline/rtems/rtems/barrier.inl,
	rtems/macros/rtems/rtems/barrier.inl, rtems/src/barrier.c,
	rtems/src/barriercreate.c, rtems/src/barrierdelete.c,
	rtems/src/barrierident.c, rtems/src/barrierrelease.c,
	rtems/src/barriertranslatereturncode.c, rtems/src/barrierwait.c:
	New files.

1 files changed, 92 insertions, 0 deletions

diff --git a/cpukit/rtems/src/barriercreate.c b/cpukit/rtems/src/barriercreate.c
new file mode 100644
index 0000000000..89c4b55ec9
--- /dev/null
+++ b/cpukit/rtems/src/barriercreate.c
@@ -0,0 +1,92 @@
+/*
+ *  Barrier Manager -- Create a Barrier Instance
+ *
+ *  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 <rtems/system.h>
+#include <rtems/rtems/status.h>
+#include <rtems/rtems/support.h>
+#include <rtems/rtems/attr.h>
+#include <rtems/score/isr.h>
+#include <rtems/score/object.h>
+#include <rtems/rtems/barrier.h>
+
+/*
+ *  rtems_barrier_create
+ *
+ *  This directive creates a barrier.  A barrier id is returned.
+ *
+ *  Input parameters:
+ *    name             - user defined barrier name
+ *    attribute_set    - barrier attributes
+ *    maximum_waiters  - number of threads before automatic release
+ *    priority_ceiling - barrier's ceiling priority
+ *    id               - pointer to barrier id
+ *
+ *  Output parameters:
+ *    id               - barrier id
+ *    RTEMS_SUCCESSFUL - if successful
+ *    error code       - if unsuccessful
+ */
+
+rtems_status_code rtems_barrier_create(
+  rtems_name           name,
+  rtems_attribute      attribute_set,
+  uint32_t             maximum_waiters,
+  rtems_id            *id
+)
+{
+  Barrier_Control         *the_barrier;
+  CORE_barrier_Attributes  the_attributes;
+
+  if ( !rtems_is_name_valid( name ) )
+    return RTEMS_INVALID_NAME;
+
+  if ( !id )
+    return RTEMS_INVALID_ADDRESS;
+
+  /* Initialize core barrier attributes */
+  if ( _Attributes_Is_barrier_automatic( attribute_set ) ) {
+    the_attributes.discipline = CORE_BARRIER_AUTOMATIC_RELEASE;
+    if ( maximum_waiters == 0 )
+      return RTEMS_INVALID_NUMBER;
+  } else
+    the_attributes.discipline = CORE_BARRIER_MANUAL_RELEASE;
+  the_attributes.maximum_count = maximum_waiters;
+
+  _Thread_Disable_dispatch();             /* prevents deletion */
+
+  the_barrier = _Barrier_Allocate();
+
+  if ( !the_barrier ) {
+    _Thread_Enable_dispatch();
+    return RTEMS_TOO_MANY;
+  }
+
+  the_barrier->attribute_set = attribute_set;
+
+  _CORE_barrier_Initialize( &the_barrier->Barrier, &the_attributes );
+
+  _Objects_Open(
+    &_Barrier_Information,
+    &the_barrier->Object,
+    (Objects_Name) name
+  );
+
+  *id = the_barrier->Object.id;
+
+  _Thread_Enable_dispatch();
+  return RTEMS_SUCCESSFUL;
+}