1 files changed, 102 insertions, 0 deletions
diff --git a/c/src/exec/score/headers/apiext.h b/c/src/exec/score/headers/apiext.h
new file mode 100644
index 0000000000..ae45348303
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+++ b/c/src/exec/score/headers/apiext.h
@@ -0,0 +1,102 @@
+/*  apiext.h
+ *
+ *  XXX
+ *
+ *  COPYRIGHT (c) 1989-1997.
+ *  On-Line Applications Research Corporation (OAR).
+ *  Copyright assigned to U.S. Government, 1994.
+ *
+ *  The license and distribution terms for this file may in
+ *  the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+
+#ifndef __API_EXTENSIONS_h
+#define __API_EXTENSIONS_h
+
+#include <rtems/score/chain.h>
+#include <rtems/score/thread.h>
+
+/*
+ *  The control structure which defines the points at which an API
+ *  can add an extension to the system initialization thread.
+ */
+ 
+typedef void (*API_extensions_Predriver_hook)(void);
+typedef void (*API_extensions_Postdriver_hook)(void);
+typedef void (*API_extensions_Postswitch_hook)(
+                 Thread_Control *
+             );
+ 
+ 
+typedef struct {
+  Chain_Node                      Node;
+  API_extensions_Predriver_hook   predriver_hook;
+  API_extensions_Postdriver_hook  postdriver_hook;
+  API_extensions_Postswitch_hook  postswitch_hook;
+}  API_extensions_Control;
+
+/*
+ *  This is the list of API extensions to the system initialization.
+ */
+ 
+SCORE_EXTERN Chain_Control _API_extensions_List;
+
+/*
+ *  _API_extensions_Initialization
+ *
+ *  DESCRIPTION:
+ *
+ *  This routine initializes the API extension handler.
+ *
+ */
+ 
+void _API_extensions_Initialization( void );
+ 
+/*
+ *  _API_extensions_Add
+ *
+ *  DESCRIPTION:
+ *
+ *  XXX
+ */
+ 
+void _API_extensions_Add(
+  API_extensions_Control *the_extension
+);
+
+/*
+ *  _API_extensions_Run_predriver
+ *
+ *  DESCRIPTION:
+ *
+ *  XXX
+ */
+ 
+void _API_extensions_Run_predriver( void );
+
+/*
+ *  _API_extensions_Run_postdriver
+ *
+ *  DESCRIPTION:
+ *
+ *  XXX
+ */
+
+void _API_extensions_Run_postdriver( void );
+
+/*
+ *  _API_extensions_Run_postswitch
+ *
+ *  DESCRIPTION:
+ *
+ *  XXX
+ */
+
+void _API_extensions_Run_postswitch( void );
+
+#endif
+/* end of include file */