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// Copyright (c) 2008-2009 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 "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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// Signal data structure that supports marshalling
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//
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//
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#include <e32base.h>
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#ifndef TSIGNALMESSAGE_H
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#define TSIGNALMESSAGE_H
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const TInt KSigMsgLength = 32;
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const TUint8 KSigMsgVersion = 1;
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/*
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@internalComponent
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*/
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class TSignalMessage
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{
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public:
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TUint8 mType;
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union
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{
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struct
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{
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TUint8 mSignal;
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TUint32 mValue;
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} mSigVal;
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struct
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{
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TUint8 mSignal;
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TInt32 mTimerId;
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} mRtSignal;
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TUint8 mSignal;
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TUint32 mTimeOut;
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TUint32 mData;
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TUint64 mPid;
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};
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enum {
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ESignal = 0,
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ESignalValuePair,
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EAlarmRegistration,
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EDequeueSignal,
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EWaitOnChild,
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ERtTimerSignal,
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} TSignalMessageType;
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virtual ~TSignalMessage() {}
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static TBool SignalMatchBySigNum(const TSignalMessage& aMsg1, const TSignalMessage& aMsg2)
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{
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if(aMsg1.mType != ESignal || aMsg2.mType != ESignal)
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return EFalse;
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if (aMsg1.mSignal == aMsg2.mSignal)
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{
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return ETrue;
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}
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return EFalse;
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}
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static TBool SigValMatchBySigNum(const TSignalMessage& aMsg1, const TSignalMessage& aMsg2)
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{
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if(aMsg1.mType != ESignalValuePair || aMsg2.mType != ESignalValuePair)
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return EFalse;
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if (aMsg1.mSigVal.mSignal == aMsg2.mSigVal.mSignal)
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{
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return ETrue;
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}
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return EFalse;
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}
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inline TInt Marshall(TDes8& aBuffer)
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{
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TUint8 lBufPtr[KSigMsgLength] = {0};
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if(aBuffer.MaxSize() != KSigMsgLength)
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return KErrArgument;
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lBufPtr[0] = KSigMsgVersion;
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lBufPtr[1] = mType;
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switch(mType)
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{
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case ESignal:
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lBufPtr[2] = mSignal;
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break;
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case ESignalValuePair:
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lBufPtr[2] = mSigVal.mSignal;
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lBufPtr[3] = (TUint8)(mSigVal.mValue & 0x000000FF);
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lBufPtr[4] = (TUint8)((mSigVal.mValue & 0x0000FF00) >> 8);
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lBufPtr[5] = (TUint8)((mSigVal.mValue & 0x00FF0000) >> 16);
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lBufPtr[6] = (TUint8)((mSigVal.mValue & 0xFF000000) >> 24);
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break;
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case EAlarmRegistration:
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lBufPtr[2] = (TUint8)(mTimeOut & 0x000000FF);
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lBufPtr[3] = (TUint8)((mTimeOut & 0x0000FF00) >> 8);
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lBufPtr[4] = (TUint8)((mTimeOut & 0x00FF0000) >> 16);
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lBufPtr[5] = (TUint8)((mTimeOut & 0xFF000000) >> 24);
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break;
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case EDequeueSignal:
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lBufPtr[2] = mSignal;
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break;
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case EWaitOnChild:
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memcpy(&lBufPtr[2],&mPid,sizeof(mPid));
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break;
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case ERtTimerSignal:
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Mem::Copy(&lBufPtr[2], &mRtSignal.mSignal, sizeof(mRtSignal.mSignal));
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Mem::Copy(&lBufPtr[2+sizeof(mRtSignal.mSignal)], &mRtSignal.mTimerId, sizeof(mRtSignal.mTimerId));
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break;
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default:
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// do nothing
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return KErrGeneral;
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break;
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}
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aBuffer.Zero();
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aBuffer.Append(lBufPtr,KSigMsgLength);
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return KErrNone;
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}
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inline TInt Unmarshall(TDes8& aBuffer)
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{
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const TUint8* lBufPtr = aBuffer.Ptr();
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if(aBuffer.MaxSize() != KSigMsgLength)
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return KErrArgument;
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if(lBufPtr[0] != KSigMsgVersion)
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return KErrGeneral;
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mType = lBufPtr[1];
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switch(mType)
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{
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case ESignal:
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mSignal = lBufPtr[2];
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break;
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case ESignalValuePair:
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mSigVal.mSignal = lBufPtr[2];
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mSigVal.mValue = 0;
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mSigVal.mValue |= (TUint32)lBufPtr[3];
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mSigVal.mValue |= (((TUint32)lBufPtr[4]) << 8);
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mSigVal.mValue |= (((TUint32)lBufPtr[5]) << 16);
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mSigVal.mValue |= (((TUint32)lBufPtr[6]) << 24);
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break;
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case EAlarmRegistration:
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mTimeOut = 0;
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mTimeOut |= (TUint32)lBufPtr[2];
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mTimeOut |= (((TUint32)lBufPtr[3]) << 8);
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mTimeOut |= (((TUint32)lBufPtr[4]) << 16);
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mTimeOut |= (((TUint32)lBufPtr[5]) << 24);
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break;
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case EDequeueSignal:
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mSignal = lBufPtr[2];
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break;
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case EWaitOnChild:
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mPid = 0;
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memcpy(&mPid,&lBufPtr[2],sizeof(mPid));
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break;
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case ERtTimerSignal:
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Mem::Copy(&mRtSignal.mSignal, &lBufPtr[2], sizeof(mRtSignal.mSignal));
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Mem::Copy(&mRtSignal.mTimerId,&lBufPtr[2+sizeof(mRtSignal.mSignal)], sizeof(mRtSignal.mTimerId));
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break;
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default:
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// do nothing
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return KErrGeneral;
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break;
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}
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return KErrNone;
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}
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};
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#endif // TSIGNALMESSAGE_H
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