#ifndef CYGONCE_DEVS_WATCHDOG_HXX#define CYGONCE_DEVS_WATCHDOG_HXX//==========================================================================////      watchdog.hxx////      Watchdog 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) 1998,1999 Cygnus Solutions.  All Rights Reserved.// -------------------------------------------////####COPYRIGHTEND####//==========================================================================//#####DESCRIPTIONBEGIN####//// Author(s):   nickg// Contributors:        nickg// Date:        1998-07-14// Purpose:     Watchdog declarations// Description: This file defines the interface to the watchdog device//              that provides timer based recovery from software and//              hardware faults.// Usage:       #include <cyg/devs/watchdog.hxx>////####DESCRIPTIONEND####////==========================================================================#include <cyg/kernel/ktypes.h>#include <cyg/infra/cyg_ass.h>            // assertion macrosclass Cyg_Watchdog_Action;// -------------------------------------------------------------------------// Watchdog classclass Cyg_Watchdog{    Cyg_Watchdog_Action         *action_list;public:    Cyg_Watchdog();    // Start the watchdog running.    void start();    // Reset watchdog timer. This needs to be called regularly to prevent    // the watchdog firing.    void reset();        // Trigger the watchdog as if the timer had expired.    void trigger();        // Register an action routine that will be called when the timer    // triggers.    void install_action( Cyg_Watchdog_Action *wdaction );    // Deregister a previously registered action routine.    void uninstall_action( Cyg_Watchdog_Action *wdaction );        // A static instance of the single system defined watchdog device.    static Cyg_Watchdog watchdog;};// -------------------------------------------------------------------------// Watchdog action classclass Cyg_Watchdog_Action{    friend class Cyg_Watchdog;    Cyg_Watchdog_Action         *next;          // link in chain        void (*action)( CYG_ADDRWORD data );        // action function    CYG_ADDRWORD data;                          // data argument    public:    Cyg_Watchdog_Action(        void (*action)( CYG_ADDRWORD data ),        CYG_ADDRWORD data        );    ~Cyg_Watchdog_Action();    void install();        void uninstall();};// -------------------------------------------------------------------------// Cyg_Watchdog_Action inlinesinline Cyg_Watchdog_Action::Cyg_Watchdog_Action(    void (*action_arg)( CYG_ADDRWORD data ),    CYG_ADDRWORD data_arg    ){    next        = NULL;    action      = action_arg;    data        = data_arg;}inline Cyg_Watchdog_Action::~Cyg_Watchdog_Action(){    Cyg_Watchdog::watchdog.uninstall_action( this );}inline void Cyg_Watchdog_Action::install(){    Cyg_Watchdog::watchdog.install_action( this );    }inline void Cyg_Watchdog_Action::uninstall(){    Cyg_Watchdog::watchdog.uninstall_action( this );    }// -------------------------------------------------------------------------#endif // ifndef CYGONCE_DEVS_WATCHDOG_HXX// EOF watchdog.hxx