author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 31 Aug 2010 15:15:28 +0300 | |
branch | RCL_3 |
changeset 13 | 90fe62538f66 |
permissions | -rw-r--r-- |
13
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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 "cptaskexecutor.h" |
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#include <QMutexLocker> |
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#include <QDebug> |
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#include <QtAlgorithms> |
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#include <QPointer> |
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|
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static QPointer<CpTaskExecutor> g_instance; |
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|
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CpTaskExecutor *CpTaskExecutor::globalInstance() |
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{ |
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if (!g_instance) { |
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g_instance = new CpTaskExecutor(); |
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} |
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return g_instance.data(); |
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} |
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|
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void CpTaskExecutor::destroyGlobalInstance() |
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{ |
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delete g_instance.data(); |
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} |
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|
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CpTaskExecutor::CpTaskExecutor(QObject *parent /*=0*/) |
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: QThread(parent), mStopped(false) |
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{ |
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} |
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|
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CpTaskExecutor::~CpTaskExecutor() |
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{ |
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stop(); |
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} |
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|
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bool CpTaskExecutor::runTask(CpTask *task,bool append /*= false*/) |
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{ |
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if (mStopped) { |
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if (isRunning()) { |
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qDebug() << "thread in stopping process...can not run task.\r\n"; |
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return false; |
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} |
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mStopped = false; |
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} |
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if (task) { |
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{ |
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QMutexLocker locker(&mMutex); |
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if (append) { |
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mTasks.append(task); |
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} |
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else { |
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mTasks.insert(0,task); |
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} |
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} |
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|
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if (!isRunning()) { |
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qDebug() << "isRunning() == false, call start()\r\n"; |
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start(); |
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} |
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} |
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return true; |
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} |
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void CpTaskExecutor::stop() |
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{ |
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if (!mStopped && isRunning() ) { |
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mStopped = true; |
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removeTasks(); |
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wait(); //wait for finished |
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} |
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} |
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void CpTaskExecutor::removeTasks() |
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{ |
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QMutexLocker locker(&mMutex); |
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|
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QList<CpTask*>::const_iterator begin(mTasks.begin()); |
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QList<CpTask*>::const_iterator end(mTasks.end()); |
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for (; begin != end; ++begin) { |
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if ((*begin)->autoDelete()) { |
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delete (*begin); |
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} |
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} |
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mTasks.clear(); |
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} |
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|
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void CpTaskExecutor::run() |
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{ |
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while (!mStopped) { |
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CpTask *task = 0; |
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{ |
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QMutexLocker locker(&mMutex); |
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if (mTasks.isEmpty()) { |
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break; |
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110 |
} |
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task = mTasks.takeFirst(); |
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} |
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try { |
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task->execute(&mStopped); |
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task->complete(&mStopped); |
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}catch(...) { |
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qDebug() << "excetion occur when running task\r\n"; |
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} |
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|
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if (task->autoDelete()) { |
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delete task; |
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} |
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} |
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} |
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125 |
|
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bool CpTaskExecutor::toFront(CpTask *task) |
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{ |
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QMutexLocker locker(&mMutex); |
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QList<CpTask*>::iterator foundIterator = ::qFind(mTasks.begin(),mTasks.end(),task); |
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if (foundIterator == mTasks.end()) { |
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return false; |
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} |
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133 |
|
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mTasks.erase(foundIterator); |
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mTasks.insert(0,task); |
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|
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return true; |
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} |
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|
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140 |
//End of File |