activityfw/storage/server/src/afstorageasynctask.cpp
author hgs
Thu, 24 Jun 2010 16:18:29 +0300
changeset 99 7aaf39b772ac
child 107 b34d53f6acdf
permissions -rw-r--r--
201025
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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/*
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* Copyright (c) 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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*
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*/
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#include <s32mem.h>
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#include "afstorageasynctask.h"
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#include "afcmd.h"
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_LIT(KUnsupportedStorageAsyncTask, "Unsupported async storage task");
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// -----------------------------------------------------------------------------
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/**
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 * Constructor for performing 1st stage construction
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 */
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CAfStorageAsyncTask::CAfStorageAsyncTask()
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{
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    // No implementation required
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}
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// -----------------------------------------------------------------------------
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/**
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 * Destructor.
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 */
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CAfStorageAsyncTask::~CAfStorageAsyncTask()
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{
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    mExternalizedData.Close();
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    mInternalizedData.ResetAndDestroy();
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}
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// -----------------------------------------------------------------------------
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/**
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 * Handle asynchronous data storage requests
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 * @param taskStorage - data tasks storage
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 * @param dataStorage - data storage
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 * @param msg - request message
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 */
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void CAfStorageAsyncTask::ExecuteLD(MAfTaskStorage& taskStorage, 
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                                    CAfStorage& dataStorage, 
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                                    const RMessage2& msg)
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{
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    CAfStorageAsyncTask* self = new (ELeave) CAfStorageAsyncTask();
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    CleanupStack::PushL(self);
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    self->ExecuteL(dataStorage, msg);
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    taskStorage.PushL(self);
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    CleanupStack::Pop(self);
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    if (EFalse == msg.IsNull()) {
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        msg.Complete(KErrNone);
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    }
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}
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// -----------------------------------------------------------------------------
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/**
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 * Interface implementation
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 * @see CActivityTask::Data()
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 */
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const TDesC8& CAfStorageAsyncTask::CAfStorageAsyncTask::Data() const
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{
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    return mExternalizedData;
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}
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// -----------------------------------------------------------------------------
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/**
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 * Interface implementation
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 * @see CActivityTask::BroadcastReceivedL(const RMessage2 &)
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 */
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void CAfStorageAsyncTask::BroadcastReceivedL(const RMessage2& )
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{
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    // No implementation required
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}
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// -----------------------------------------------------------------------------
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/**
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 * Handle asynchronous data storage requests
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 * @param dataStorage - data storage
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 * @param msg - request message
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 */
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void CAfStorageAsyncTask::ExecuteL(CAfStorage& dataStorage, 
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                                   const RMessage2& msg)
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{
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    switch (msg.Function()) {
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    case Activities:
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        AllActivitiesL(dataStorage, msg);
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        break;
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    case ApplicationActivities:
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        ApplicationActivitiesL(dataStorage, msg);
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        break;
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    case ApplicationActivity:
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        ApplicationActivityL(dataStorage, msg);
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        break;
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    default:
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        //this code shouldn't be called. fatal error: means wrong session implementation 
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        User::Panic(KUnsupportedStorageAsyncTask, KErrGeneral);
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    };
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}
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// -----------------------------------------------------------------------------
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/**
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 * Handle getting all activities request
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 * @param dataStorage - data storage
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 * @param msg - requested message
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 */
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void CAfStorageAsyncTask::AllActivitiesL(CAfStorage& dataStorage, 
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                                         const RMessage2& msg)
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{
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    dataStorage.ActivitiesL(mInternalizedData);
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    ExternalizeL();
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    WriteResponseL(msg);
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}
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// -----------------------------------------------------------------------------
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/**
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 * Handle getting application activities request
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 * @param dataStorage - data storage
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 * @param msg - requested message
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 */
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void CAfStorageAsyncTask::ApplicationActivitiesL(CAfStorage& dataStorage, 
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                                                 const RMessage2& msg)
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{
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    CAfEntry *entry = CAfEntry::NewLC(msg);
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    dataStorage.ActivitiesL(mInternalizedData, entry->ApplicationId());
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    CleanupStack::PopAndDestroy(entry);
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    ExternalizeL();
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    WriteResponseL(msg);
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}
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// -----------------------------------------------------------------------------
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/**
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 * Handle getting application activity request
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 * @param dataStorage - data storage
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 * @param msg - requested message
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 */
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void CAfStorageAsyncTask::ApplicationActivityL(CAfStorage& dataStorage, 
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                                               const RMessage2& msg)
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{
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    CAfEntry *src(CAfEntry::NewLC(msg));
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    dataStorage.ActivityL(mInternalizedData, *src);
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    CleanupStack::PopAndDestroy(src);
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    ExternalizeL();
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    WriteResponseL(msg);
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}
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// -----------------------------------------------------------------------------
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void CAfStorageAsyncTask::ExternalizeL()
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{
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    mExternalizedData << mInternalizedData;
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    mInternalizedData.ResetAndDestroy();
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}
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// -----------------------------------------------------------------------------
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/**
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 * Write response data into request message
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 * @param msg - destination message
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 */
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void CAfStorageAsyncTask::WriteResponseL(const RMessage2& msg)
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{
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    if (EFalse == msg.IsNull()) {
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        msg.WriteL(1, 
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                   TPckgBuf<TInt>(mExternalizedData.Length()));//write data size
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        msg.WriteL(2, 
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                   TPckgBuf<CBase*>(this));//task identyfier
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    }
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}
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// -----------------------------------------------------------------------------
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/**
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 * Returns ETrue if task is related with session argument
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 */
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TBool CAfStorageAsyncTask::IsSessionTask(const CSession2* /*session*/)
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{
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	return EFalse;
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}