| author | sl |
| Tue, 10 Jun 2014 14:32:02 +0200 | |
| changeset 1 | 260cb5ec6c19 |
| permissions | -rw-r--r-- |
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// Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies). |
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// All rights reserved. |
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// This component and the accompanying materials are made available |
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// under the terms of the License "Eclipse Public License v1.0" |
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// which accompanies this distribution, and is available |
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// at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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// |
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// Initial Contributors: |
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// Nokia Corporation - initial contribution. |
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// |
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// Contributors: |
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// |
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// Description: |
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// Implementation of finite state machine |
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// |
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// |
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|
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/** |
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@file |
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@internalTechnology |
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*/ |
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|
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#include "t_ms_main.h" |
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#include "cstatemachine.h" |
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#include "tstate.h" |
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|
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CStateMachine* |
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CStateMachine::NewL() |
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{
|
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return new (ELeave) CStateMachine; |
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} |
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|
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CStateMachine::CStateMachine() |
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{
|
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// Intentionally left blank |
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} |
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|
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CStateMachine::~CStateMachine() |
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{
|
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allStates.ResetAndDestroy(); |
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} |
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|
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void |
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CStateMachine::MoveTo(int aStateId) |
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{
|
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if (!iCurrentState) |
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{
|
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test.Printf(_L("The current state is undefined\n"));
|
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test(EFalse); |
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} |
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|
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iCurrentState->MoveTo(aStateId); |
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iCurrentState = FindState(aStateId); |
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} |
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|
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const TState* |
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CStateMachine::AddState(int aStateId) |
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{
|
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const TState* state = FindState(aStateId); |
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|
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if (state == 0) |
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{
|
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switch (aStateId) |
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{
|
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case EUsbMsDriveState_Disconnected: |
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state = new TDisconnected(); |
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break; |
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case EUsbMsDriveState_Connecting: |
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state = new TConnecting(); |
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break; |
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case EUsbMsDriveState_Connected: |
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state = new TConnected(); |
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break; |
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case EUsbMsDriveState_Disconnecting: |
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state = new TDisconnecting(); |
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break; |
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case EUsbMsDriveState_Active: |
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state = new TActive(); |
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break; |
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case EUsbMsDriveState_Locked: |
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state = new TLocked(); |
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break; |
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case EUsbMsState_Read: |
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state = new TRead(); |
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break; |
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case EUsbMsState_Written: |
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state = new TWritten(); |
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break; |
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default: |
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break; |
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} |
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|
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if (state) |
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{
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allStates.Append(state); |
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} |
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} |
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|
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return state; |
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} |
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|
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void |
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CStateMachine::SetInitState(int aStateId) |
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{
|
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iCurrentState = FindState(aStateId); |
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iFromStateId = aStateId; |
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} |
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|
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const TState* |
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CStateMachine::FindState(int aStateId) const |
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{
|
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TInt count = allStates.Count(); |
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for (TInt i = 0; i < count; i++) |
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{
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if (allStates[i]->GetStateId() == aStateId) |
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{
|
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return allStates[i]; |
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} |
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} |
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|
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return 0; |
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} |
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|
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TInt CStateMachine::CurrentStateId() const |
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{
|
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return iCurrentState->GetStateId(); |
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} |
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|
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TInt CStateMachine::FromStateId() const |
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{
|
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return iFromStateId; |
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} |
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|
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void CStateMachine::SetFromStateId(TInt aStateId) |
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{
|
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iFromStateId = aStateId; |
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} |