sl@0: // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // Signal data structure that supports marshalling
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include <e32base.h>
sl@0: 
sl@0: #ifndef TSIGNALMESSAGE_H
sl@0: #define TSIGNALMESSAGE_H
sl@0: 
sl@0: const TInt KSigMsgLength = 32;
sl@0: const TUint8 KSigMsgVersion = 1;
sl@0: 
sl@0: /*
sl@0: @internalComponent
sl@0: */
sl@0: class TSignalMessage
sl@0: 	{
sl@0: public:
sl@0: 	TUint8	mType;
sl@0: 	union
sl@0: 		{
sl@0: 		struct
sl@0: 			{
sl@0: 			TUint8	mSignal;
sl@0: 			TUint32	mValue;
sl@0: 			} mSigVal;
sl@0: 		struct
sl@0: 			{
sl@0: 			TUint8 	mSignal;	
sl@0: 			TInt32	mTimerId;
sl@0: 			} mRtSignal;
sl@0: 		TUint8 	mSignal;		
sl@0: 		TUint32 mTimeOut;
sl@0: 		TUint32 mData;
sl@0: 		TUint64	mPid;
sl@0: 		};
sl@0: 
sl@0: 	enum {
sl@0: 		ESignal = 0,
sl@0: 		ESignalValuePair,
sl@0: 		EAlarmRegistration,
sl@0: 		EDequeueSignal,
sl@0: 		EWaitOnChild,
sl@0: 		ERtTimerSignal,
sl@0: 	} TSignalMessageType;
sl@0: 
sl@0: 	virtual ~TSignalMessage() {}
sl@0: 
sl@0: 	static TBool SignalMatchBySigNum(const TSignalMessage& aMsg1, const TSignalMessage& aMsg2)
sl@0: 		{
sl@0: 		if(aMsg1.mType != ESignal || aMsg2.mType != ESignal)
sl@0: 			return EFalse;
sl@0: 
sl@0: 		if (aMsg1.mSignal == aMsg2.mSignal)
sl@0: 			{
sl@0: 			return ETrue;
sl@0: 			}
sl@0: 		return EFalse;
sl@0: 		}
sl@0: 
sl@0: 	static TBool SigValMatchBySigNum(const TSignalMessage& aMsg1, const TSignalMessage& aMsg2)
sl@0: 		{
sl@0: 		if(aMsg1.mType != ESignalValuePair || aMsg2.mType != ESignalValuePair)
sl@0: 			return EFalse;
sl@0: 
sl@0: 		if (aMsg1.mSigVal.mSignal == aMsg2.mSigVal.mSignal)
sl@0: 			{
sl@0: 			return ETrue;
sl@0: 			}
sl@0: 		return EFalse;
sl@0: 		}
sl@0: 
sl@0: 	inline TInt Marshall(TDes8& aBuffer)
sl@0: 		{
sl@0: 		TUint8	lBufPtr[KSigMsgLength] = {0};
sl@0: 
sl@0: 		if(aBuffer.MaxSize() != KSigMsgLength)
sl@0: 			return KErrArgument;
sl@0: 
sl@0: 		lBufPtr[0] = KSigMsgVersion;
sl@0: 		lBufPtr[1] = mType;
sl@0: 
sl@0: 		switch(mType)
sl@0: 			{
sl@0: 			case ESignal:
sl@0: 				lBufPtr[2] = mSignal;
sl@0: 				break;
sl@0: 			case ESignalValuePair:
sl@0: 				lBufPtr[2] = mSigVal.mSignal;
sl@0: 
sl@0: 				lBufPtr[3] = (TUint8)(mSigVal.mValue & 0x000000FF);
sl@0: 				lBufPtr[4] = (TUint8)((mSigVal.mValue & 0x0000FF00) >> 8);
sl@0: 				lBufPtr[5] = (TUint8)((mSigVal.mValue & 0x00FF0000) >> 16);
sl@0: 				lBufPtr[6] = (TUint8)((mSigVal.mValue & 0xFF000000) >> 24);
sl@0: 				break;
sl@0: 			case EAlarmRegistration:
sl@0: 				lBufPtr[2] = (TUint8)(mTimeOut & 0x000000FF);
sl@0: 				lBufPtr[3] = (TUint8)((mTimeOut & 0x0000FF00) >> 8);
sl@0: 				lBufPtr[4] = (TUint8)((mTimeOut & 0x00FF0000) >> 16);
sl@0: 				lBufPtr[5] = (TUint8)((mTimeOut & 0xFF000000) >> 24);
sl@0: 				break;
sl@0: 			case EDequeueSignal:
sl@0: 				lBufPtr[2] = mSignal;
sl@0: 				break;
sl@0: 			case EWaitOnChild:
sl@0: 				memcpy(&lBufPtr[2],&mPid,sizeof(mPid));
sl@0: 				break;
sl@0: 			case ERtTimerSignal:
sl@0: 				Mem::Copy(&lBufPtr[2], &mRtSignal.mSignal, sizeof(mRtSignal.mSignal));
sl@0: 				Mem::Copy(&lBufPtr[2+sizeof(mRtSignal.mSignal)], &mRtSignal.mTimerId, sizeof(mRtSignal.mTimerId));
sl@0: 				break;
sl@0: 			default:
sl@0: 				// do nothing
sl@0: 				return KErrGeneral;
sl@0: 				break;
sl@0: 			}
sl@0: 		aBuffer.Zero();
sl@0: 		aBuffer.Append(lBufPtr,KSigMsgLength);
sl@0: 		return KErrNone;
sl@0: 		}
sl@0: 
sl@0: 	inline TInt Unmarshall(TDes8& aBuffer)
sl@0: 		{
sl@0: 		const TUint8* lBufPtr = aBuffer.Ptr();
sl@0: 
sl@0: 		if(aBuffer.MaxSize() != KSigMsgLength)
sl@0: 			return KErrArgument;
sl@0: 
sl@0: 		if(lBufPtr[0] != KSigMsgVersion)
sl@0: 			return KErrGeneral;
sl@0: 
sl@0: 		mType = lBufPtr[1];
sl@0: 
sl@0: 		switch(mType)
sl@0: 			{
sl@0: 			case ESignal:
sl@0: 				mSignal = lBufPtr[2];
sl@0: 				break;
sl@0: 			case ESignalValuePair:
sl@0: 				mSigVal.mSignal = lBufPtr[2];
sl@0: 				mSigVal.mValue = 0;
sl@0: 				mSigVal.mValue |= (TUint32)lBufPtr[3];
sl@0: 				mSigVal.mValue |= (((TUint32)lBufPtr[4]) << 8);
sl@0: 				mSigVal.mValue |= (((TUint32)lBufPtr[5]) << 16);
sl@0: 				mSigVal.mValue |= (((TUint32)lBufPtr[6]) << 24);
sl@0: 				break;
sl@0: 			case EAlarmRegistration:
sl@0: 				mTimeOut = 0;
sl@0: 				mTimeOut |= (TUint32)lBufPtr[2];
sl@0: 				mTimeOut |= (((TUint32)lBufPtr[3]) << 8);
sl@0: 				mTimeOut |= (((TUint32)lBufPtr[4]) << 16);
sl@0: 				mTimeOut |= (((TUint32)lBufPtr[5]) << 24);
sl@0: 				break;
sl@0: 			case EDequeueSignal:
sl@0: 				mSignal = lBufPtr[2];
sl@0: 				break;
sl@0: 			case EWaitOnChild:
sl@0: 				mPid = 0;
sl@0: 				memcpy(&mPid,&lBufPtr[2],sizeof(mPid));
sl@0: 				break;
sl@0: 			case ERtTimerSignal:
sl@0: 				Mem::Copy(&mRtSignal.mSignal, &lBufPtr[2], sizeof(mRtSignal.mSignal));
sl@0: 				Mem::Copy(&mRtSignal.mTimerId,&lBufPtr[2+sizeof(mRtSignal.mSignal)], sizeof(mRtSignal.mTimerId));
sl@0: 				break;
sl@0: 			default:
sl@0: 				// do nothing
sl@0: 				return KErrGeneral;
sl@0: 				break;
sl@0: 			}
sl@0: 
sl@0: 		return KErrNone;
sl@0: 		}
sl@0: 	};
sl@0: 
sl@0: #endif // TSIGNALMESSAGE_H