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@@ -0,0 +1,79 @@
+#ifndef CYGONCE_DEVS_WALLCLOCK_HXX
+#define CYGONCE_DEVS_WALLCLOCK_HXX
+
+//==========================================================================
+//
+//	wallclock.hxx
+//
+//	Wallclock interface declaration
+//
+//==========================================================================
+//####COPYRIGHTBEGIN####
+//
+// -------------------------------------------
+// The contents of this file are subject to the Cygnus eCos Public License
+// Version 1.0 (the "License"); you may not use this file except in
+// compliance with the License.  You may obtain a copy of the License at
+// http://sourceware.cygnus.com/ecos
+// 
+// Software distributed under the License is distributed on an "AS IS"
+// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the
+// License for the specific language governing rights and limitations under
+// the License.
+// 
+// The Original Code is eCos - Embedded Cygnus Operating System, released
+// September 30, 1998.
+// 
+// The Initial Developer of the Original Code is Cygnus.  Portions created
+// by Cygnus are Copyright (C) 1998 Cygnus Solutions.  All Rights Reserved.
+// -------------------------------------------
+//
+//####COPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s): 	nickg
+// Contributors:	nickg
+// Date:	1998-07-14
+// Purpose:	Wall Clock declarations
+// Description:	This file defines the interface to the wall clock device
+//              that provides real time stamps. This is either an interface
+//              to a hardware RTC like the Dallas DS12887, or it is emulated
+//              using the kernel clock.
+// Usage:       #include <cyg/devs/wallclock.hxx>
+//
+//####DESCRIPTIONEND####
+//
+//==========================================================================
+
+#include <cyg/kernel/ktypes.h>
+#include <cyg/infra/cyg_ass.h>            // assertion macros
+
+// -------------------------------------------------------------------------
+// Wallclock class
+
+class Cyg_WallClock
+{
+
+public:
+
+    Cyg_WallClock();
+
+    // Returns the current timestamp. This may involve reading the
+    // hardware, so it may take anything up to a second to complete.
+    cyg_uint32 get_current_time();
+
+    // Sets the value of the timestamp relative to now. This may involve
+    // writing to the hardware, so it may take anything up to a second to
+    // complete.
+    void set_current_time( cyg_uint32 time_stamp );
+
+    // A static pointer to the single system defined wall clock device.
+    static Cyg_WallClock *wallclock;
+
+};
+
+// -------------------------------------------------------------------------
+
+#endif // ifndef CYGONCE_DEVS_WALLCLOCK_HXX
+// EOF wallclock.hxx