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/*
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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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*
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*/
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#include "CFSClient.h"
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#include "clientutils.h"
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#include "clientsession.h"
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CFSClient::CFSClient(TInt aUID,
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MCTToken& aToken,
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RFileStoreClientSession& aClient)
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: CActive(EPriorityNormal),
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iToken(aToken),
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iInterfaceUID(aUID),
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iClient(aClient),
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iRequestPtr(NULL, 0, 0)
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{
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}
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CFSClient::~CFSClient()
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{
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Cancel();
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delete iRequestDataBuf;
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}
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CFSClient::TAsyncRequest::~TAsyncRequest()
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{
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__ASSERT_DEBUG(EIdle==iRequest, FSTokenPanic(ERequestOutstanding));
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}
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void CFSClient::TAsyncRequest::operator()(TFSTokenMessages aRequest, TRequestStatus* aStatus)
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{
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__ASSERT_DEBUG(EIdle==iRequest, FSTokenPanic(ERequestOutstanding));
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iRequest = aRequest;
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iClientStatus = aStatus;
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*aStatus = KRequestPending;
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}
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void CFSClient::TAsyncRequest::Complete(TInt aCompletionResult)
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{
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__ASSERT_DEBUG(EIdle!=iRequest, FSTokenPanic(ENoRequestOutstanding));
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User::RequestComplete(iClientStatus, aCompletionResult);
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iRequest = EIdle;
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}
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void CFSClient::TAsyncRequest::Cancel()
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{
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User::RequestComplete(iClientStatus, KErrCancel);
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iRequest = EIdle;
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}
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void CFSClient::FreeRequestBuffer() const
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{
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delete iRequestDataBuf;
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iRequestDataBuf = NULL;
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iRequestPtr.Set(NULL, 0, 0);
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}
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TInt CFSClient::AllocRequestBuffer(TInt aReqdSize) const
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{
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ASSERT(aReqdSize > 0);
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TInt result = KErrNoMemory;
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FreeRequestBuffer();
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iRequestDataBuf = HBufC8::NewMax(aReqdSize);
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if (iRequestDataBuf)
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{
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iRequestPtr.Set(iRequestDataBuf->Des());
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iRequestPtr.FillZ();
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result = KErrNone;
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}
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return result;
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}
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/**
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* Execute a synchronous request that returns a buffer of indetermintate length.
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*
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* If the initial buffer is too short, the server leaves with KErrOverflow and
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* passes us the required length - the reuest is then re-sent.
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*/
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void CFSClient::SendSyncRequestAndHandleOverflowL(TFSTokenMessages aMessage,
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TInt aInitialBufSize,
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const TIpcArgs& aArgs) const
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{
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User::LeaveIfError(AllocRequestBuffer(aInitialBufSize));
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TInt err = iClient.SendRequest(aMessage, aArgs);
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if (err == KErrOverflow)
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{
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TInt sizeReqd = 0;
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TPckg<TInt> theSize(sizeReqd);
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theSize.Copy(iRequestPtr);
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User::LeaveIfError(AllocRequestBuffer(sizeReqd));
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err = iClient.SendRequest(aMessage, aArgs);
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}
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User::LeaveIfError(err);
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}
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// *********************************************************************************
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// CActive implementation
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// *********************************************************************************
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void CFSClient::DoCancel()
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{
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iCurrentRequest.Cancel();
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}
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TInt CFSClient::RunError(TInt aError)
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{
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iCurrentRequest.Complete(aError);
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return KErrNone; // Handled
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}
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