1 files changed, 44 insertions, 0 deletions
diff --git a/cpukit/score/src/chainextract.c b/cpukit/score/src/chainextract.c
new file mode 100644
index 0000000000..deb537ed85
--- /dev/null
+++ b/cpukit/score/src/chainextract.c
@@ -0,0 +1,44 @@
+/*
+ *  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/score/address.h>
+#include <rtems/score/chain.h>
+#include <rtems/score/isr.h>
+
+/*
+ *  _Chain_Extract
+ *
+ *  This kernel routine deletes the given node from a chain.
+ *
+ *  Input parameters:
+ *    node - pointer to node in chain to be deleted
+ *
+ *  Output parameters:  NONE
+ *
+ *  INTERRUPT LATENCY:
+ *    only case
+ */
+
+void _Chain_Extract(
+  Chain_Node *node
+)
+{
+  ISR_Level level;
+
+  _ISR_Disable( level );
+    _Chain_Extract_unprotected( node );
+  _ISR_Enable( level );
+}