qdispatchsource.h

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/*
* Copyright (c) 2011 MLBA. All rights reserved.
*
* @MLBA_OPEN_LICENSE_HEADER_START@
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* 
*     http://www.apache.org/licenses/LICENSE-2.0
* 
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* @MLBA_OPEN_LICENSE_HEADER_END@
*/


#ifndef QDISPATCH_SOURCE_H_
#define QDISPATCH_SOURCE_H_

#include <qobject.h>
#include <qrunnable.h>

#include "qdispatchglobal.h"
#include "../xdispatch/dispatch.h"

QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE

class QRunnable;
class QIODevice;
class QNetworkAccessManager;
class QDispatchQueue;
class QNetworkReply;

QT_MODULE(Dispatch)

class QDispatchSource;

class Q_DISPATCH_EXPORT QDispatchSourceType : public QObject {

       Q_OBJECT

protected:
       virtual void init(QThread*) = 0;

signals:
       void ready(QObject* = NULL);

       friend class QDispatchSource;
};

class Q_DISPATCH_EXPORT QDispatchSourceTypeSignal : public QDispatchSourceType {

public:
       QDispatchSourceTypeSignal(QObject* sender, const char* signal);
       ~QDispatchSourceTypeSignal();

protected:
       virtual void init(QThread*);

private:
       Q_DISABLE_COPY(QDispatchSourceTypeSignal);

};

class Q_DISPATCH_EXPORT QDispatchSourceTypeIODevice : public QDispatchSourceType {

       Q_OBJECT

public:
       QDispatchSourceTypeIODevice(QIODevice*);
       ~QDispatchSourceTypeIODevice();

protected:
       virtual void init(QThread*);

private slots:
       void avail();

private:
       Q_DISABLE_COPY(QDispatchSourceTypeIODevice);
       QIODevice* dev;
};

class Q_DISPATCH_EXPORT QDispatchSourceTypeIODeviceRead : public QDispatchSourceTypeIODevice {

       Q_OBJECT

public:
       QDispatchSourceTypeIODeviceRead(QIODevice*);

private:
       Q_DISABLE_COPY(QDispatchSourceTypeIODeviceRead);
};

class Q_DISPATCH_EXPORT QDispatchSourceTypeIODeviceWrite : public QDispatchSourceType {

       Q_OBJECT

public:
       QDispatchSourceTypeIODeviceWrite(QIODevice*);
       ~QDispatchSourceTypeIODeviceWrite();

protected:
       virtual void init(QThread*);

private slots:
       void finished(qint64);

private:
       Q_DISABLE_COPY(QDispatchSourceTypeIODeviceWrite);
       QIODevice* dev;
};

class Q_DISPATCH_EXPORT QDispatchSourceTypeNetworkManager : public QDispatchSourceType {

       Q_OBJECT

public:
       QDispatchSourceTypeNetworkManager(QNetworkAccessManager*);
       ~QDispatchSourceTypeNetworkManager();

private slots:
       void finished(QNetworkReply*);

protected:
       void init(QThread*);

private:
       Q_DISABLE_COPY(QDispatchSourceTypeNetworkManager);
       QNetworkAccessManager* manager;
};

class Q_DISPATCH_EXPORT QDispatchSource : public QObject {

       Q_OBJECT

public:
       QDispatchSource(QDispatchSourceType*);
       ~QDispatchSource();
       void setHandler(QRunnable*);
#ifdef XDISPATCH_HAS_BLOCKS

       void setHandler(dispatch_block_t);
#endif

    QDispatchQueue targetQueue() const;
    void setTargetQueue(const QDispatchQueue&);
       template <typename T> static T* data(){
        return qobject_cast<T*>(_data());
    }

public slots:
       void resume();
       void suspend();

private slots:
       void signal(QObject* = NULL);

private:
       Q_DISABLE_COPY(QDispatchSource);
       class Private;
       Private* d;

    static QObject* _data();

};


QT_END_NAMESPACE
QT_END_HEADER

#endif /* QDISPATCH_SOURCE_H_ */