qdispatchgroup.h

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/*
* Copyright (c) 2011-2012 MLBA-Team. 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_GROUP_H_
#define QDISPATCH_GROUP_H_

#include <QtCore/qobject.h>
#include <QtCore/qscopedpointer.h>

#include "qdispatchglobal.h"
#include "qblockrunnable.h"

QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE

class QRunnable;
class QDispatchQueue;
class QTime;

QT_MODULE(Dispatch)


class Q_DISPATCH_EXPORT QDispatchGroup : public QObject, public xdispatch::group {

        Q_OBJECT

    public:
        QDispatchGroup();
        QDispatchGroup(dispatch_group_t);
        QDispatchGroup(const QDispatchGroup&);
        QDispatchGroup(const xdispatch::group&);
        ~QDispatchGroup();

        void async(QRunnable* r, const xdispatch::queue& q = xdispatch::global_queue());
        using xdispatch::group::async;
        bool wait(const QTime& t);
        using xdispatch::group::wait;
        void notify(QRunnable* r, const xdispatch::queue& = xdispatch::global_queue());
        void notify(xdispatch::operation*, const xdispatch::queue& = xdispatch::global_queue());
  #if XDISPATCH_HAS_BLOCKS

        inline void notify(dispatch_block_t b, const xdispatch::queue& q = xdispatch::global_queue()) {
            notify( new QBlockRunnable(b), q );
        }
  #endif
  #if XDISPATCH_HAS_FUNCTION

        inline void notify(const xdispatch::lambda_function& b, const xdispatch::queue& q = xdispatch::global_queue()) {
            notify( new QLambdaRunnable(b), q );
        }
  #endif

        void enableAllFinishedSignal();

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

    signals:
        void allFinished();

    private:

        class Emitter;
        friend class Emitter;
        friend Q_DECL_EXPORT QDebug operator<<(QDebug, const QDispatchGroup&);

        class Private;
        QScopedPointer<Private> d;
};

Q_DECL_EXPORT QDebug operator<<(QDebug, const QDispatchGroup&);

QT_END_NAMESPACE
QT_END_HEADER

#endif /* QDISPATCH_GROUP_H_ */