--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/accessoryservices/accessoryserver/inc/ChargerContext/FiniteStateMachine.h	Tue Feb 02 00:53:00 2010 +0200
@@ -0,0 +1,170 @@
+/*
+* Copyright (c) 2008-2008 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Interfaces of Finite State Machine (.
+*
+*/
+
+
+
+#ifndef M_FINITESTATEMACHINE_H
+#define M_FINITESTATEMACHINE_H
+
+
+#include <e32def.h>
+#include <e32cmn.h> 
+#include <e32des8.h>
+
+
+typedef TInt TFSMState;
+
+class MFSMState;
+
+
+/**
+ *  Finite State Machine's body interface. 
+ *
+ *  This callback interface has to be implemented by FSM body
+ *  implementation class.
+ *  @code
+ *   ?good_class_usage_example(s)
+ *  @endcode
+ *
+ *  @lib AccServer.exe
+ *  @since S60 5.1
+ */
+NONSHARABLE_CLASS( MFSMBody )
+    {
+public:
+    virtual ~MFSMBody() {} // Destructor needed for ownership transfer
+
+    /**
+     * Function is called by host object to indicate that FSM can proceed to 
+     * initial state and make necessary initialization actions.
+     * 
+     * @since S60 5.1
+     * @param none. 
+     * @return void.
+     */
+    virtual void Start() = 0;
+
+    /**
+     * Function is called by  current state to indicate that FSM has to change
+     * its state. Pervious state has performed necessary exit actions if any.
+     *
+     * @since S60 5.1
+     * @param aNextState Next state where to transit. 
+     * @return TBool True is transition valid. False if nextstate value invalid.
+     */
+    virtual TBool Transit( TFSMState aNextState ) = 0;
+
+    /**
+     * Get the id of current state.
+     *
+     * @since S60 5.1
+     * @param none. 
+     * @return TFSMState Current state identification.
+     */
+    virtual TFSMState CurrentStateID() = 0;
+
+    /**
+     * Function is called whenever an event that might have impact 
+     * on the state machine occurs.
+     *
+     * @since S60 5.1
+     * @param none. 
+     * @return none.
+     */
+    virtual void Input() = 0;
+
+    /**
+     * Get the pointer of current state object.
+     *
+     * @since S60 5.1
+     * @param none. 
+     * @return MFSMState* Current state's interface pointer.
+     */
+    virtual  MFSMState* CurrentState() = 0;
+
+    /**
+     * Get the name of current state.
+     *
+     * @since S60 5.1
+     * @param none. 
+     * @return TPtrC Name of the current state.
+     */
+    virtual TPtrC CurrentStateName() = 0;
+
+    };
+
+/**
+ *  FSM's State interface. 
+ *
+ *  This callback interface has to be implemented by FSM state
+ *  implementation class.
+ *  @code
+ *   ?good_class_usage_example(s)
+ *  @endcode
+ *
+ *  @lib AccServer.exe
+ *  @since S60 5.1
+ */
+class MFSMState
+    {
+public:
+ 
+    virtual ~MFSMState() {} // Destructor needed for ownership transfer
+ 
+    /**
+     * Function is called when entering the state. State can perform
+     * necessary entry actions if any.
+     *
+     * @since S60 5.1
+     * @param none. 
+     * @return void.
+     */
+    virtual void Enter() = 0;
+
+    /**
+     * Function is called by FSM Body whenever an event that might have 
+     * impact on the state has been fired. Implementation has to found
+     * out what event has occurred and decide whether it enforces
+     * transition to another state.
+     *
+     * @since S60 5.1
+     * @param none. 
+     * @return none.
+     */
+    virtual void Input() = 0;
+    /**
+     * Function returns state's identification.
+     *
+     * @since S60 5.1
+     * @param none. 
+     * @return TFSMState State's identification.
+     */
+    virtual TFSMState Id() = 0;
+
+    /**
+     * Function returns state's name.
+     *
+     * @since S60 5.1
+     * @param none. 
+     * @return TPtrC Name of the state.
+     */
+    virtual TPtrC Name() = 0;
+    
+    };
+
+
+#endif // M_FINITESTATEMACHINE_H