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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 MS drive state watcher
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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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#include "t_ms_main.h"
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#include "cpropertywatch.h"
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#include "cstatemachine.h"
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LOCAL_D TInt testedDriveIndex = -1;
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///////////////////////////////////////////////////////////////////////////
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// class CPropertyWatch
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///////////////////////////////////////////////////////////////////////////
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CPropertyWatch* CPropertyWatch::NewLC(TUsbMsDriveState_Subkey aSubkey, CPropertyHandler& aHandler)
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{
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CPropertyWatch* me=new(ELeave) CPropertyWatch(aHandler);
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CleanupStack::PushL(me);
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me->ConstructL(aSubkey);
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return me;
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}
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CPropertyWatch::CPropertyWatch(CPropertyHandler& aHandler)
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: CActive(0), iHandler(aHandler)
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{}
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void CPropertyWatch::ConstructL(TUsbMsDriveState_Subkey aSubkey)
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{
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User::LeaveIfError(iProperty.Attach(KUsbMsDriveState_Category, aSubkey));
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CActiveScheduler::Add(this);
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// initial subscription and process current property value
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RunL();
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}
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CPropertyWatch::~CPropertyWatch()
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{
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Cancel();
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iProperty.Close();
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}
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void CPropertyWatch::DoCancel()
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{
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iProperty.Cancel();
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}
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void CPropertyWatch::RunL()
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{
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// resubscribe before processing new value to prevent missing updates
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iProperty.Subscribe(iStatus);
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iHandler.HandleStatusChange(iProperty);
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SetActive();
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}
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///////////////////////////////////////////////////////////////////////////
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// class CPropertyHandler
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///////////////////////////////////////////////////////////////////////////
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CPropertyHandler::CPropertyHandler(TInt aDriveNo, CStateMachine& aSm)
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: iDriveNo(aDriveNo)
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, iStateMachine(aSm)
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{
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}
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CPropertyHandler::~CPropertyHandler()
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{
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}
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///////////////////////////////////////////////////////////////////////////
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// class CMsDriveStatusHandler
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///////////////////////////////////////////////////////////////////////////
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CMsDriveStatusHandler*
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CMsDriveStatusHandler::NewLC(TInt aDriveNo, CStateMachine& aSm)
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{
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CMsDriveStatusHandler* self = new (ELeave) CMsDriveStatusHandler(aDriveNo, aSm);
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CleanupStack::PushL(self);
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return self;
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};
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CMsDriveStatusHandler::CMsDriveStatusHandler(TInt aDriveNo, CStateMachine& aSm)
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: CPropertyHandler(aDriveNo, aSm)
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{
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}
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void
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CMsDriveStatusHandler::HandleStatusChange(RProperty& aProperty)
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{
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TInt driveStatus = -1;
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TInt currentStatus = iStateMachine.CurrentStateId();
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TBuf8<16> allDrivesStatus;
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TInt ret = aProperty.Get(allDrivesStatus);
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test.Printf(_L("Property.Get() return value: %d\n"), ret);
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test(ret == KErrNone);
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if (testedDriveIndex < 0)
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{
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for(TInt i=0; i<allDrivesStatus.Length()/2; i++)
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{
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if (allDrivesStatus[2*i] == iDriveNo)
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{
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testedDriveIndex = i;
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break;
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}
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}
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}
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if (testedDriveIndex < 0)
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{
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test.Printf(_L("Tested drive %d not found\n"), iDriveNo);
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test(EFalse);
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}
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driveStatus = allDrivesStatus[2*testedDriveIndex + 1];
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switch (currentStatus)
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{
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case EUsbMsDriveState_Disconnected:
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if (iStateMachine.FromStateId() == EUsbMsDriveState_Disconnected)
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{
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iStateMachine.MoveTo(EUsbMsDriveState_Connected);
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iStateMachine.SetFromStateId(EUsbMsDriveState_Disconnected);
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}
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else if (iStateMachine.FromStateId() == EUsbMsDriveState_Disconnecting)
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{
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test(driveStatus == currentStatus);
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iStateMachine.MoveTo(EUsbMsDriveState_Connecting);
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iStateMachine.SetFromStateId(EUsbMsDriveState_Disconnected);
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}
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else if (iStateMachine.FromStateId() == EUsbMsState_Read)
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{
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CActiveScheduler::Stop();
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}
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break;
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case EUsbMsDriveState_Connecting:
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if (iStateMachine.FromStateId() == EUsbMsDriveState_Disconnected)
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{
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iStateMachine.MoveTo(EUsbMsState_Written);
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iStateMachine.SetFromStateId(EUsbMsDriveState_Connecting);
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}
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break;
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case EUsbMsDriveState_Connected:
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if (iStateMachine.FromStateId() == EUsbMsDriveState_Disconnected)
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{
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test(driveStatus == currentStatus);
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iStateMachine.MoveTo(EUsbMsDriveState_Active);
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iStateMachine.SetFromStateId(EUsbMsDriveState_Connected);
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}
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break;
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case EUsbMsDriveState_Disconnecting:
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if (iStateMachine.FromStateId() == EUsbMsDriveState_Active)
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{
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test(driveStatus == currentStatus);
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iStateMachine.MoveTo(EUsbMsDriveState_Disconnected);
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iStateMachine.SetFromStateId(EUsbMsDriveState_Disconnecting);
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}
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break;
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case EUsbMsDriveState_Active:
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if (iStateMachine.FromStateId() == EUsbMsDriveState_Connected)
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{
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test(driveStatus == currentStatus);
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iStateMachine.MoveTo(EUsbMsDriveState_Disconnecting);
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iStateMachine.SetFromStateId(EUsbMsDriveState_Active);
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}
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break;
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case EUsbMsDriveState_Locked:
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iStateMachine.MoveTo(EUsbMsDriveState_Disconnecting);
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break;
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default:
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test.Printf(_L("uninteresting drive status: %d\n"), currentStatus);
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break;
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}
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}
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///////////////////////////////////////////////////////////////////////////
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// class CMsReadStatusHandler
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///////////////////////////////////////////////////////////////////////////
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CMsReadStatusHandler*
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CMsReadStatusHandler::NewLC(TInt aDriveNo, CStateMachine& aSm)
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{
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CMsReadStatusHandler* self = new (ELeave) CMsReadStatusHandler(aDriveNo, aSm);
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CleanupStack::PushL(self);
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return self;
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};
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CMsReadStatusHandler::CMsReadStatusHandler(TInt aDriveNo, CStateMachine& aSm)
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: CPropertyHandler(aDriveNo, aSm)
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{
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}
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void
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CMsReadStatusHandler::HandleStatusChange(RProperty& aProperty)
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{
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TInt currentStatus = iStateMachine.CurrentStateId();
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TUsbMsBytesTransferred kBytes;
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TInt ret = aProperty.Get(kBytes);
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test.Printf(_L("Read Property.Get() return value: %d\n"), ret);
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test(ret == KErrNone);
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switch (currentStatus)
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{
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case EUsbMsState_Read:
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if (iStateMachine.FromStateId() == EUsbMsState_Written
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&& (1 == kBytes[testedDriveIndex]))
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{
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iStateMachine.MoveTo(EUsbMsDriveState_Disconnected);
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iStateMachine.SetFromStateId(EUsbMsState_Read);
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}
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break;
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case EUsbMsDriveState_Active:
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if (iStateMachine.FromStateId() == EUsbMsDriveState_Connected)
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{
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iStateMachine.MoveTo(EUsbMsDriveState_Disconnecting);
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iStateMachine.SetFromStateId(EUsbMsDriveState_Active);
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}
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break;
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default:
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test.Printf(_L("uninteresting read status: %d\n"), currentStatus);
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break;
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}
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}
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///////////////////////////////////////////////////////////////////////////
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// class CMsWrittenStatusHandler
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///////////////////////////////////////////////////////////////////////////
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CMsWrittenStatusHandler*
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CMsWrittenStatusHandler::NewLC(TInt aDriveNo, CStateMachine& aSm)
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{
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CMsWrittenStatusHandler* self = new (ELeave) CMsWrittenStatusHandler(aDriveNo, aSm);
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CleanupStack::PushL(self);
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return self;
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};
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CMsWrittenStatusHandler::CMsWrittenStatusHandler(TInt aDriveNo, CStateMachine& aSm)
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: CPropertyHandler(aDriveNo, aSm)
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{
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}
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void
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CMsWrittenStatusHandler::HandleStatusChange(RProperty& aProperty)
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{
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TInt currentStatus = iStateMachine.CurrentStateId();
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TUsbMsBytesTransferred kBytes;
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TInt ret = aProperty.Get(kBytes);
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test.Printf(_L("Written Property.Get() return value: %d\n"), ret);
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test(ret == KErrNone);
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test.Printf(_L("Kilobytes written: %d\n"), kBytes[testedDriveIndex]);
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switch (currentStatus)
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{
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case EUsbMsState_Written:
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if (iStateMachine.FromStateId() == EUsbMsDriveState_Connecting &&
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kBytes[testedDriveIndex] == 1)
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{
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iStateMachine.MoveTo(EUsbMsState_Read);
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iStateMachine.SetFromStateId(EUsbMsState_Written);
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}
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break;
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default:
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test.Printf(_L("uninteresting write status: %d\n"), currentStatus);
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break;
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}
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}
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