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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 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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// e32\e32test\demandpaging\d_pagingexample_1_post.cpp
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// Demand paging migration example device driver d_pagingexample_1_post: a DLogicalChannel-dervied
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// driver, post-migration
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//
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//
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#include "d_pagingexample.h"
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#include <kernel/kernel.h>
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#include <kernel/kern_priv.h>
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const TInt KDfcQThreadPriority = 25;
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const TInt KBufferSize = KMaxTransferSize;
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//
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// Logical channel
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//
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class DExampleChannel : public DLogicalChannel
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{
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public:
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typedef RPagingExample::TConfigData TConfigData;
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typedef RPagingExample::TValueStruct TValueStruct;
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public:
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DExampleChannel();
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~DExampleChannel();
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virtual TInt DoCreate(TInt aUnit, const TDesC8* anInfo, const TVersion& aVer);
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virtual TInt SendMsg(TMessageBase* aMsg);
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TInt SendControl(TMessageBase* aMsg);
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TInt SendRequest(TMessageBase* aMsg);
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virtual void HandleMsg(TMessageBase* aMsg);
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TInt DoControl(TInt aFunction, TAny* a1, TAny* a2);
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void DoRequest(TInt aFunction, TRequestStatus* aStatus, TAny* a1, TAny* a2);
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TInt DoCancel(TUint aMask);
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private:
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TDfcQue* DfcQ();
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void Shutdown();
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void SetConfig(const TConfigData&);
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TInt PreNotify(TRequestStatus* aStatus);
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void StartNotify();
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TInt PreAsyncGetValue(TInt* aValue, TRequestStatus* aStatus);
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void StartAsyncGetValue();
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TInt PreAsyncGetValue2(TInt* aValue1, TInt* aValue2, TRequestStatus* aStatus);
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void StartAsyncGetValue2();
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TInt PreRead(TAny* aBuffer, TInt aLength, TRequestStatus* aStatus);
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void StartRead();
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TInt PreReadDes(TDes8* aDesOut, TRequestStatus* aStatus);
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void StartReadDes();
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TInt PreWrite(TAny* aBuffer, TInt aLength, TRequestStatus* aStatus);
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void StartWrite();
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TInt PreWriteDes(const TDesC8* aDesIn, TRequestStatus* aStatus);
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void StartWriteDes();
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void ReceiveToReadBuffer();
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void SendFromWriteBuffer();
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static void AsyncGetValueCompleteDfcFunc(TAny* aPtr);
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static void AsyncGetValue2CompleteDfcFunc(TAny* aPtr);
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static void ReceiveCompleteDfcFunc(TAny* aPtr);
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static void SendCompleteDfcFunc(TAny* aPtr);
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void CompleteNotify();
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void CompleteAsyncGetValue();
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void CompleteAsyncGetValue2();
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void CompleteRead();
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void CompleteWrite();
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private:
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TDynamicDfcQue* iDynamicDfcQ;
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TConfigData iConfig;
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DThread* iClient;
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// Notify
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TClientRequest* iNotifyRequest;
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// Async get value
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TClientDataRequest<TValueStruct>* iAsyncGetValueRequest;
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NTimer iAsyncGetValueTimer;
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TDfc iAsyncGetValueDfc;
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// Async get value 2
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TClientDataRequest2<TInt,TInt>* iAsyncGetValue2Request;
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NTimer iAsyncGetValue2Timer;
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TDfc iAsyncGetValue2Dfc;
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// Read
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TClientBufferRequest* iReadRequest;
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NTimer iReadTimer;
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TClientBuffer* iClientReadBuffer;
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TDfc iCompleteReadDfc;
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// Write
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TClientBufferRequest* iWriteRequest;
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NTimer iWriteTimer;
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TClientBuffer* iClientWriteBuffer;
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TDfc iCompleteWriteDfc;
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TUint8 iBuffer[KBufferSize];
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};
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DExampleChannel::DExampleChannel() :
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iAsyncGetValueTimer(NULL, this),
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iAsyncGetValueDfc(AsyncGetValueCompleteDfcFunc, this, 0),
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iAsyncGetValue2Timer(NULL, this),
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iAsyncGetValue2Dfc(AsyncGetValue2CompleteDfcFunc, this, 0),
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iReadTimer(NULL, this),
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iCompleteReadDfc(ReceiveCompleteDfcFunc, this, 0),
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iWriteTimer(NULL, this),
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iCompleteWriteDfc(SendCompleteDfcFunc, this, 0)
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{
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iClient = &Kern::CurrentThread();
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iClient->Open();
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}
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DExampleChannel::~DExampleChannel()
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{
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Kern::SafeClose((DObject*&)iClient, NULL);
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if (iDynamicDfcQ)
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iDynamicDfcQ->Destroy();
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Kern::DestroyClientRequest(iNotifyRequest);
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Kern::DestroyClientRequest(iAsyncGetValueRequest);
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Kern::DestroyClientRequest(iAsyncGetValue2Request);
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Kern::DestroyClientBufferRequest(iReadRequest);
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Kern::DestroyClientBufferRequest(iWriteRequest);
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}
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TDfcQue* DExampleChannel::DfcQ()
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{
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return iDynamicDfcQ;
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}
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TInt DExampleChannel::DoCreate(TInt /*aUnit*/, const TDesC8* /*aInfo*/, const TVersion& /*aVer*/)
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{
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TInt r;
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r = Kern::CreateClientRequest(iNotifyRequest);
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if (r != KErrNone)
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return r;
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r = Kern::CreateClientDataRequest(iAsyncGetValueRequest);
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if (r != KErrNone)
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return r;
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r = Kern::CreateClientDataRequest2(iAsyncGetValue2Request);
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if (r != KErrNone)
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return r;
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r = Kern::CreateClientBufferRequest(iReadRequest, 1, TClientBufferRequest::EPinVirtual);
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if (r != KErrNone)
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return r;
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r = Kern::CreateClientBufferRequest(iWriteRequest, 1, TClientBufferRequest::EPinVirtual);
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if (r != KErrNone)
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return r;
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// create a dynamic DFC queue, which is used for handling client messages and for our own DFCs
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r = Kern::DynamicDfcQCreate(iDynamicDfcQ, KDfcQThreadPriority, KPagingExample1PostLdd);
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if (r != KErrNone)
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return r;
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// todo: this will be the default anyway
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iDynamicDfcQ->SetRealtimeState(ERealtimeStateOn);
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SetDfcQ(DfcQ());
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iAsyncGetValueDfc.SetDfcQ(DfcQ());
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iAsyncGetValue2Dfc.SetDfcQ(DfcQ());
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iCompleteReadDfc.SetDfcQ(DfcQ());
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iCompleteWriteDfc.SetDfcQ(DfcQ());
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iMsgQ.Receive();
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return KErrNone;
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}
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// override SendMsg method to allow pinning data in the context of the client thread
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TInt DExampleChannel::SendMsg(TMessageBase* aMsg)
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{
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TThreadMessage& m=*(TThreadMessage*)aMsg;
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TInt id = m.iValue;
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// we only support one client
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if (id != (TInt)ECloseMsg && m.Client() != iClient)
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return KErrAccessDenied;
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TInt r = KErrNone;
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if (id != (TInt)ECloseMsg && id != KMaxTInt)
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{
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if (id<0)
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{
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TRequestStatus* pS=(TRequestStatus*)m.Ptr0();
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r = SendRequest(aMsg);
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if (r != KErrNone)
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Kern::RequestComplete(pS,r);
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}
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else
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r = SendControl(aMsg);
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}
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else
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r = DLogicalChannel::SendMsg(aMsg);
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return r;
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}
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void DExampleChannel::HandleMsg(TMessageBase* aMsg)
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{
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TThreadMessage& m=*(TThreadMessage*)aMsg;
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TInt id=m.iValue;
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if (id==(TInt)ECloseMsg)
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{
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Shutdown();
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m.Complete(KErrNone,EFalse);
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return;
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}
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else if (id==KMaxTInt)
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{
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// DoCancel
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DoCancel(m.Int0());
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m.Complete(KErrNone,ETrue);
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return;
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}
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else if (id<0)
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{
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// DoRequest
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TRequestStatus* pS=(TRequestStatus*)m.Ptr0();
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DoRequest(~id,pS,m.Ptr1(),m.Ptr2());
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m.Complete(KErrNone,ETrue);
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}
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else
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{
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// DoControl
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TInt r=DoControl(id,m.Ptr0(),m.Ptr1());
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m.Complete(r,ETrue);
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}
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}
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TInt DExampleChannel::SendControl(TMessageBase* aMsg)
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{
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TThreadMessage& m=*(TThreadMessage*)aMsg;
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TInt id=m.iValue;
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// thread-local copy of configuration data
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TConfigData kernelConfigBuffer;
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TAny* userConfigPtr = m.Ptr0();
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switch (id)
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{
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case RPagingExample::ESetConfig:
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// copy config from client to local buffer in context of client thread
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umemget32(&kernelConfigBuffer, userConfigPtr, sizeof(TConfigData));
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// update message to point to kernel-side buffer
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m.iArg[0] = &kernelConfigBuffer;
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break;
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case RPagingExample::EGetConfig:
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// update message to point to kernel-side buffer
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m.iArg[0] = &kernelConfigBuffer;
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break;
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}
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TInt r = DLogicalChannel::SendMsg(aMsg);
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if (r != KErrNone)
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return r;
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switch (id)
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{
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case RPagingExample::EGetConfig:
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// copy config from local bufferto client in context of client thread
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umemput32(userConfigPtr, &kernelConfigBuffer, sizeof(TConfigData));
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break;
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}
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return r;
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}
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TInt DExampleChannel::DoControl(TInt aFunction,TAny* a1,TAny* /*a2*/)
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{
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TInt r = KErrNone;
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TConfigData* configBuffer = (TConfigData*)a1;
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switch (aFunction)
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{
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case RPagingExample::EGetConfig:
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// copy current config into local buffer in context of DFC thread to avoid potential race conditions
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*configBuffer = iConfig;
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break;
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case RPagingExample::ESetConfig:
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// set config from copy in local buffer in context of DFC thread to avoid potential race conditions
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SetConfig(*configBuffer);
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break;
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default:
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r = KErrNotSupported;
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}
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return r;
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}
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TInt DExampleChannel::SendRequest(TMessageBase* aMsg)
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{
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TThreadMessage& m=*(TThreadMessage*)aMsg;
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TInt function = ~m.iValue;
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TRequestStatus* pS=(TRequestStatus*)m.Ptr0();
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TAny* a1 = m.Ptr1();
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TAny* a2 = m.Ptr2();
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TInt r = KErrNotSupported;
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switch (function)
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{
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case RPagingExample::ERequestNotify:
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r = PreNotify(pS);
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break;
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case RPagingExample::ERequestAsyncGetValue:
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r = PreAsyncGetValue((TInt*)a1, pS);
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break;
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case RPagingExample::ERequestAsyncGetValue2:
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r = PreAsyncGetValue2((TInt*)a1, (TInt*)a2, pS);
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break;
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case RPagingExample::ERequestRead:
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r = PreRead(a1, (TInt)a2, pS);
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break;
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case RPagingExample::ERequestReadDes:
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r = PreReadDes((TDes8*)a1, pS);
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break;
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case RPagingExample::ERequestWrite:
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r = PreWrite(a1, (TInt)a2, pS);
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break;
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case RPagingExample::ERequestWriteDes:
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r = PreWriteDes((TDes8*)a1, pS);
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break;
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}
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if (r == KErrNone)
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r = DLogicalChannel::SendMsg(aMsg);
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return r;
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}
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void DExampleChannel::DoRequest(TInt aFunction, TRequestStatus* /*aStatus*/, TAny* /*a1*/, TAny* /*a2*/)
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{
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switch (aFunction)
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{
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case RPagingExample::ERequestNotify:
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StartNotify();
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break;
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case RPagingExample::ERequestAsyncGetValue:
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StartAsyncGetValue();
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break;
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case RPagingExample::ERequestAsyncGetValue2:
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StartAsyncGetValue2();
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break;
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case RPagingExample::ERequestRead:
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StartRead();
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break;
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case RPagingExample::ERequestReadDes:
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StartReadDes();
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366 |
break;
|
|
|
367 |
|
|
|
368 |
case RPagingExample::ERequestWrite:
|
|
|
369 |
StartWrite();
|
|
|
370 |
break;
|
|
|
371 |
|
|
|
372 |
case RPagingExample::ERequestWriteDes:
|
|
|
373 |
StartWriteDes();
|
|
|
374 |
break;
|
|
|
375 |
|
|
|
376 |
default:
|
|
|
377 |
__NK_ASSERT_ALWAYS(EFalse); // we already validated the request number
|
|
|
378 |
}
|
|
|
379 |
}
|
|
|
380 |
|
|
|
381 |
TInt DExampleChannel::DoCancel(TUint /*aMask*/)
|
|
|
382 |
{
|
|
|
383 |
if (iAsyncGetValueRequest->IsReady())
|
|
|
384 |
{
|
|
|
385 |
iAsyncGetValueTimer.Cancel();
|
|
|
386 |
iAsyncGetValueDfc.Cancel();
|
|
|
387 |
Kern::QueueRequestComplete(iClient, iAsyncGetValueRequest, KErrCancel);
|
|
|
388 |
}
|
|
|
389 |
|
|
|
390 |
if (iAsyncGetValue2Request->IsReady())
|
|
|
391 |
{
|
|
|
392 |
iAsyncGetValue2Timer.Cancel();
|
|
|
393 |
iAsyncGetValue2Dfc.Cancel();
|
|
|
394 |
Kern::QueueRequestComplete(iClient, iAsyncGetValue2Request, KErrCancel);
|
|
|
395 |
}
|
|
|
396 |
|
|
|
397 |
if (iReadRequest->IsReady())
|
|
|
398 |
{
|
|
|
399 |
iReadTimer.Cancel();
|
|
|
400 |
iCompleteReadDfc.Cancel();
|
|
|
401 |
Kern::QueueBufferRequestComplete(iClient, iReadRequest, KErrCancel);
|
|
|
402 |
}
|
|
|
403 |
|
|
|
404 |
if (iWriteRequest->IsReady())
|
|
|
405 |
{
|
|
|
406 |
iWriteTimer.Cancel();
|
|
|
407 |
iCompleteWriteDfc.Cancel();
|
|
|
408 |
Kern::QueueBufferRequestComplete(iClient, iWriteRequest, KErrCancel);
|
|
|
409 |
}
|
|
|
410 |
|
|
|
411 |
return KErrNone;
|
|
|
412 |
}
|
|
|
413 |
|
|
|
414 |
void DExampleChannel::Shutdown()
|
|
|
415 |
{
|
|
|
416 |
}
|
|
|
417 |
|
|
|
418 |
void DExampleChannel::SetConfig(const TConfigData& aNewConfig)
|
|
|
419 |
{
|
|
|
420 |
iConfig = aNewConfig;
|
|
|
421 |
}
|
|
|
422 |
|
|
|
423 |
TInt DExampleChannel::PreNotify(TRequestStatus* aStatus)
|
|
|
424 |
{
|
|
|
425 |
return iNotifyRequest->SetStatus(aStatus);
|
|
|
426 |
}
|
|
|
427 |
|
|
|
428 |
void DExampleChannel::StartNotify()
|
|
|
429 |
{
|
|
|
430 |
CompleteNotify(); // example implementation completes the request immediately
|
|
|
431 |
}
|
|
|
432 |
|
|
|
433 |
void DExampleChannel::CompleteNotify()
|
|
|
434 |
{
|
|
|
435 |
Kern::QueueRequestComplete(iClient, iNotifyRequest, KErrNone);
|
|
|
436 |
}
|
|
|
437 |
|
|
|
438 |
TInt DExampleChannel::PreAsyncGetValue(TInt* aValue, TRequestStatus* aStatus)
|
|
|
439 |
{
|
|
|
440 |
TInt r = iAsyncGetValueRequest->SetStatus(aStatus);
|
|
|
441 |
if (r != KErrNone)
|
|
|
442 |
return r;
|
|
|
443 |
iAsyncGetValueRequest->SetDestPtr(aValue);
|
|
|
444 |
return KErrNone;
|
|
|
445 |
}
|
|
|
446 |
|
|
|
447 |
void DExampleChannel::StartAsyncGetValue()
|
|
|
448 |
{
|
|
|
449 |
// queue a timer to simulate an asynchronous operation
|
|
|
450 |
iAsyncGetValueTimer.OneShot(KAsyncDelay, iAsyncGetValueDfc);
|
|
|
451 |
}
|
|
|
452 |
|
|
|
453 |
void DExampleChannel::AsyncGetValueCompleteDfcFunc(TAny* aPtr)
|
|
|
454 |
{
|
|
|
455 |
DExampleChannel* self = (DExampleChannel*)aPtr;
|
|
|
456 |
self->CompleteAsyncGetValue();
|
|
|
457 |
}
|
|
|
458 |
|
|
|
459 |
void DExampleChannel::CompleteAsyncGetValue()
|
|
|
460 |
{
|
|
|
461 |
iAsyncGetValueRequest->Data().iValue1 = 1;
|
|
|
462 |
iAsyncGetValueRequest->Data().iValue2 = _L8("shrt");
|
|
|
463 |
Kern::QueueRequestComplete(iClient, iAsyncGetValueRequest, KErrNone);
|
|
|
464 |
}
|
|
|
465 |
|
|
|
466 |
TInt DExampleChannel::PreAsyncGetValue2(TInt* aValue1, TInt* aValue2, TRequestStatus* aStatus)
|
|
|
467 |
{
|
|
|
468 |
TInt r = iAsyncGetValue2Request->SetStatus(aStatus);
|
|
|
469 |
if (r != KErrNone)
|
|
|
470 |
return r;
|
|
|
471 |
iAsyncGetValue2Request->SetDestPtr1(aValue1);
|
|
|
472 |
iAsyncGetValue2Request->SetDestPtr2(aValue2);
|
|
|
473 |
return KErrNone;
|
|
|
474 |
}
|
|
|
475 |
|
|
|
476 |
void DExampleChannel::StartAsyncGetValue2()
|
|
|
477 |
{
|
|
|
478 |
// queue a timer to simulate an asynchronous operation
|
|
|
479 |
iAsyncGetValue2Timer.OneShot(KAsyncDelay, iAsyncGetValue2Dfc);
|
|
|
480 |
}
|
|
|
481 |
|
|
|
482 |
void DExampleChannel::AsyncGetValue2CompleteDfcFunc(TAny* aPtr)
|
|
|
483 |
{
|
|
|
484 |
DExampleChannel* self = (DExampleChannel*)aPtr;
|
|
|
485 |
self->CompleteAsyncGetValue2();
|
|
|
486 |
}
|
|
|
487 |
|
|
|
488 |
void DExampleChannel::CompleteAsyncGetValue2()
|
|
|
489 |
{
|
|
|
490 |
iAsyncGetValue2Request->Data1() = 1;
|
|
|
491 |
iAsyncGetValue2Request->Data2() = 2;
|
|
|
492 |
Kern::QueueRequestComplete(iClient, iAsyncGetValue2Request, KErrNone);
|
|
|
493 |
}
|
|
|
494 |
|
|
|
495 |
TInt DExampleChannel::PreRead(TAny* aBuffer, TInt aLength, TRequestStatus* aStatus)
|
|
|
496 |
{
|
|
|
497 |
// check length argument first
|
|
|
498 |
if (aLength < 1 || aLength > KBufferSize)
|
|
|
499 |
return KErrArgument;
|
|
|
500 |
|
|
|
501 |
// start request setup
|
|
|
502 |
TInt r = iReadRequest->StartSetup(aStatus);
|
|
|
503 |
if (r != KErrNone)
|
|
|
504 |
return r;
|
|
|
505 |
|
|
|
506 |
// add client buffer, this does pinning in context of client thread
|
|
|
507 |
r = iReadRequest->AddBuffer(iClientReadBuffer, (TLinAddr)aBuffer, aLength, ETrue);
|
|
|
508 |
if (r != KErrNone)
|
|
|
509 |
return KErrNoMemory;
|
|
|
510 |
|
|
|
511 |
iReadRequest->EndSetup();
|
|
|
512 |
return KErrNone;
|
|
|
513 |
}
|
|
|
514 |
|
|
|
515 |
void DExampleChannel::StartRead()
|
|
|
516 |
{
|
|
|
517 |
ReceiveToReadBuffer(); // called in DFC thread as may require serialised access to hardware
|
|
|
518 |
}
|
|
|
519 |
|
|
|
520 |
TInt DExampleChannel::PreReadDes(TDes8* aDesOut, TRequestStatus* aStatus)
|
|
|
521 |
{
|
|
|
522 |
// start request setup
|
|
|
523 |
TInt r = iReadRequest->StartSetup(aStatus);
|
|
|
524 |
if (r != KErrNone)
|
|
|
525 |
return r;
|
|
|
526 |
|
|
|
527 |
// add client descriptor, this does pinning in context of client thread
|
|
|
528 |
r = iReadRequest->AddBuffer(iClientReadBuffer, aDesOut);
|
|
|
529 |
if (r != KErrNone)
|
|
|
530 |
return r;
|
|
|
531 |
|
|
|
532 |
// can check length argument here
|
|
|
533 |
TInt length = iClientReadBuffer->MaxLength();
|
|
|
534 |
if (length < 1 || length > KBufferSize)
|
|
|
535 |
{
|
|
|
536 |
// need to reset object so it can be reused
|
|
|
537 |
iReadRequest->Reset();
|
|
|
538 |
return KErrArgument;
|
|
|
539 |
}
|
|
|
540 |
|
|
|
541 |
iReadRequest->EndSetup();
|
|
|
542 |
return KErrNone;
|
|
|
543 |
}
|
|
|
544 |
|
|
|
545 |
void DExampleChannel::StartReadDes()
|
|
|
546 |
{
|
|
|
547 |
ReceiveToReadBuffer(); // called in DFC thread as may require serialised access to hardware
|
|
|
548 |
}
|
|
|
549 |
|
|
|
550 |
TInt DExampleChannel::PreWrite(TAny* aBuffer, TInt aLength, TRequestStatus* aStatus)
|
|
|
551 |
{
|
|
|
552 |
// check length argument first
|
|
|
553 |
if (aLength < 1 || aLength > KBufferSize)
|
|
|
554 |
return KErrArgument;
|
|
|
555 |
|
|
|
556 |
// demonstrate use the single-buffer version of Setup
|
|
|
557 |
return iWriteRequest->Setup(iClientWriteBuffer, aStatus, (TLinAddr)aBuffer, aLength);
|
|
|
558 |
}
|
|
|
559 |
|
|
|
560 |
void DExampleChannel::StartWrite()
|
|
|
561 |
{
|
|
|
562 |
SendFromWriteBuffer(); // called in DFC thread as may require serialised access to hardware
|
|
|
563 |
}
|
|
|
564 |
|
|
|
565 |
TInt DExampleChannel::PreWriteDes(const TDesC8* aDesIn, TRequestStatus* aStatus)
|
|
|
566 |
{
|
|
|
567 |
// demonstrate use the single-buffer version of Setup
|
|
|
568 |
TInt r = iWriteRequest->Setup(iClientWriteBuffer, aStatus, (TAny*)aDesIn);
|
|
|
569 |
if (r != KErrNone)
|
|
|
570 |
return r;
|
|
|
571 |
|
|
|
572 |
// can check length argument here
|
|
|
573 |
TInt length = iClientWriteBuffer->Length();
|
|
|
574 |
if (length < 1 || length > KBufferSize)
|
|
|
575 |
{
|
|
|
576 |
// need to reset object so it can be reused
|
|
|
577 |
iWriteRequest->Reset();
|
|
|
578 |
return KErrArgument;
|
|
|
579 |
}
|
|
|
580 |
|
|
|
581 |
return KErrNone;
|
|
|
582 |
}
|
|
|
583 |
|
|
|
584 |
void DExampleChannel::StartWriteDes()
|
|
|
585 |
{
|
|
|
586 |
SendFromWriteBuffer(); // called in DFC thread as may require serialised access to hardware
|
|
|
587 |
}
|
|
|
588 |
|
|
|
589 |
void DExampleChannel::ReceiveToReadBuffer()
|
|
|
590 |
{
|
|
|
591 |
// just queue a timer to simulate an asynchronous receive operation
|
|
|
592 |
// actually will return the previous contents of the buffer
|
|
|
593 |
iReadTimer.OneShot(KAsyncDelay, iCompleteReadDfc);
|
|
|
594 |
}
|
|
|
595 |
|
|
|
596 |
void DExampleChannel::SendFromWriteBuffer()
|
|
|
597 |
{
|
|
|
598 |
// just queue a timer to simulate an asynchronous send operation
|
|
|
599 |
iWriteTimer.OneShot(KAsyncDelay, iCompleteWriteDfc);
|
|
|
600 |
}
|
|
|
601 |
|
|
|
602 |
void DExampleChannel::ReceiveCompleteDfcFunc(TAny* aPtr)
|
|
|
603 |
{
|
|
|
604 |
DExampleChannel* self = (DExampleChannel*)aPtr;
|
|
|
605 |
self->CompleteRead();
|
|
|
606 |
}
|
|
|
607 |
|
|
|
608 |
void DExampleChannel::SendCompleteDfcFunc(TAny* aPtr)
|
|
|
609 |
{
|
|
|
610 |
DExampleChannel* self = (DExampleChannel*)aPtr;
|
|
|
611 |
self->CompleteWrite();
|
|
|
612 |
}
|
|
|
613 |
|
|
|
614 |
void DExampleChannel::CompleteRead()
|
|
|
615 |
{
|
|
|
616 |
TPtrC8 des(iBuffer, iClientReadBuffer->MaxLength());
|
|
|
617 |
TInt r = Kern::ThreadBufWrite(iClient, iClientReadBuffer, des, 0, KChunkShiftBy0, iClient);
|
|
|
618 |
Kern::QueueBufferRequestComplete(iClient, iReadRequest, r);
|
|
|
619 |
}
|
|
|
620 |
|
|
|
621 |
void DExampleChannel::CompleteWrite()
|
|
|
622 |
{
|
|
|
623 |
TPtr8 des(iBuffer, iClientWriteBuffer->Length());
|
|
|
624 |
TInt r = Kern::ThreadBufRead(iClient, iClientWriteBuffer, des, 0, KChunkShiftBy0);
|
|
|
625 |
Kern::QueueBufferRequestComplete(iClient, iWriteRequest, r);
|
|
|
626 |
}
|
|
|
627 |
|
|
|
628 |
//
|
|
|
629 |
// Logical device
|
|
|
630 |
//
|
|
|
631 |
|
|
|
632 |
class DExampleFactory : public DLogicalDevice
|
|
|
633 |
{
|
|
|
634 |
public:
|
|
|
635 |
DExampleFactory();
|
|
|
636 |
virtual TInt Install();
|
|
|
637 |
virtual void GetCaps(TDes8& aDes) const;
|
|
|
638 |
virtual TInt Create(DLogicalChannelBase*& aChannel);
|
|
|
639 |
};
|
|
|
640 |
|
|
|
641 |
DExampleFactory::DExampleFactory()
|
|
|
642 |
{
|
|
|
643 |
iParseMask = 0;
|
|
|
644 |
iVersion = TVersion(1, 0, 0);
|
|
|
645 |
}
|
|
|
646 |
|
|
|
647 |
TInt DExampleFactory::Install()
|
|
|
648 |
{
|
|
|
649 |
return SetName(&KPagingExample1PostLdd);
|
|
|
650 |
}
|
|
|
651 |
|
|
|
652 |
void DExampleFactory::GetCaps(TDes8& /*aDes*/) const
|
|
|
653 |
{
|
|
|
654 |
// not used but required as DLogicalDevice::GetCaps is pure virtual
|
|
|
655 |
}
|
|
|
656 |
|
|
|
657 |
TInt DExampleFactory::Create(DLogicalChannelBase*& aChannel)
|
|
|
658 |
{
|
|
|
659 |
aChannel = new DExampleChannel;
|
|
|
660 |
return aChannel ? KErrNone : KErrNoMemory;
|
|
|
661 |
}
|
|
|
662 |
|
|
|
663 |
DECLARE_STANDARD_LDD()
|
|
|
664 |
{
|
|
|
665 |
return new DExampleFactory;
|
|
|
666 |
}
|