1 files changed, 126 insertions, 0 deletions
diff --git a/c/src/exec/score/macros/userext.inl b/c/src/exec/score/macros/userext.inl
new file mode 100644
index 0000000000..6d69edb096
--- /dev/null
+++ b/c/src/exec/score/macros/userext.inl
@@ -0,0 +1,126 @@
+/*  userext.inl
+ *
+ *  This file contains the macro implementation of the inlined routines
+ *  from the User Extension Handler
+ *
+ *  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 __USER_EXTENSIONS_inl
+#define __USER_EXTENSIONS_inl
+
+/*PAGE
+ *
+ *  _User_extensions_Handler_initialization
+ *
+ */
+
+#define _User_extensions_Handler_initialization( _initial_extensions ) \
+  { \
+    _Chain_Initialize_empty( &_User_extensions_List ); \
+    \
+    if ( (_initial_extensions) ) { \
+      _User_extensions_Initial.Callouts = *(_initial_extensions); \
+      _Chain_Append( \
+        &_User_extensions_List, &_User_extensions_Initial.Node ); \
+    } \
+  }
+
+/*PAGE
+ *
+ *  _User_extensions_Add_set
+ */
+
+#define _User_extensions_Add_set( _the_extension, _extension_table ) \
+  do { \
+    (_the_extension)->Callouts = *(_extension_table); \
+    \
+    _Chain_Append( &_User_extensions_List, &(_the_extension)->Node ); \
+  } while ( 0 )
+
+/*PAGE
+ *
+ *  _User_extensions_Add_API_set
+ */
+ 
+#define _User_extensions_Add_API_set( _the_extension ) \
+  _Chain_Prepend( &_User_extensions_List, &(_the_extension)->Node )
+ 
+
+/*PAGE
+ *
+ *  _User_extensions_Remove_set
+ */
+
+#define _User_extensions_Remove_set( _the_extension ) \
+  _Chain_Extract( &(_the_extension)->Node )
+
+/*PAGE
+ *
+ *  _User_extensions_Run_list_forward
+ *
+ *  NOTE:  No parentheses around macro names here to avoid
+ *         messing up the name and function call expansion.
+ */
+
+#define _User_extensions_Run_list_forward( _name, _arguments ) \
+  do { \
+    Chain_Node              *the_node; \
+    User_extensions_Control *the_extension; \
+    \
+    for ( the_node = _User_extensions_List.first ; \
+          !_Chain_Is_tail( &_User_extensions_List, the_node ) ; \
+          the_node = the_node->next ) { \
+      the_extension = (User_extensions_Control *) the_node; \
+      \
+      if ( the_extension->Callouts.## _name != NULL ) \
+        (*the_extension->Callouts.## _name) _arguments; \
+      \
+    } \
+    \
+  } while ( 0 )
+
+/*PAGE
+ *
+ *  _User_extensions_Run_list_backward
+ *
+ *  NOTE:  No parentheses around macro names here to avoid
+ *         messing up the name and function call expansion.
+ */
+
+#define _User_extensions_Run_list_backward( _name, _arguments ) \
+  do { \
+    Chain_Node              *the_node; \
+    User_extensions_Control *the_extension; \
+    \
+    for ( the_node = _User_extensions_List.last ; \
+          !_Chain_Is_head( &_User_extensions_List, the_node ) ; \
+          the_node = the_node->previous ) { \
+      the_extension = (User_extensions_Control *) the_node; \
+      \
+      if ( the_extension->Callouts.## _name != NULL ) \
+        (*the_extension->Callouts.## _name) _arguments; \
+      \
+    } \
+    \
+  } while ( 0 )
+
+/*PAGE
+ *
+ *  _User_extensions_Thread_switch
+ *
+ */
+
+#define _User_extensions_Thread_switch( _executing, _heir ) \
+  _User_extensions_Run_list_forward(thread_switch, (_executing, _heir) )
+
+#endif
+/* end of include file */