Add Qt3 development HEAD version

1 files changed, 120 insertions, 0 deletions

diff --git a/src/kernel/qasyncio.h b/src/kernel/qasyncio.h
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+/****************************************************************************
+**
+** Definition of asynchronous I/O classes
+**
+** Created : 970617
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of the kernel module of the Qt GUI Toolkit.
+**
+** This file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free
+** Software Foundation and appearing in the files LICENSE.GPL2
+** and LICENSE.GPL3 included in the packaging of this file.
+** Alternatively you may (at your option) use any later version
+** of the GNU General Public License if such license has been
+** publicly approved by Trolltech ASA (or its successors, if any)
+** and the KDE Free Qt Foundation.
+**
+** Please review the following information to ensure GNU General
+** Public Licensing requirements will be met:
+** http://trolltech.com/products/qt/licenses/licensing/opensource/.
+** If you are unsure which license is appropriate for your use, please
+** review the following information:
+** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
+** or contact the sales department at [email protected].
+**
+** This file may be used under the terms of the Q Public License as
+** defined by Trolltech ASA and appearing in the file LICENSE.QPL
+** included in the packaging of this file.  Licensees holding valid Qt
+** Commercial licenses may use this file in accordance with the Qt
+** Commercial License Agreement provided with the Software.
+**
+** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
+** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
+** herein.
+**
+**********************************************************************/
+
+#ifndef QASYNCIO_H
+#define QASYNCIO_H
+
+#ifndef QT_H
+#include "qobject.h"
+#include "qsignal.h"
+#include "qtimer.h"
+#endif // QT_H
+
+#ifndef QT_NO_ASYNC_IO
+
+class QIODevice;
+
+class Q_EXPORT QAsyncIO {
+public:
+    virtual ~QAsyncIO();
+    void connect(QObject*, const char *member);
+
+protected:
+    void ready();
+
+private:
+    QSignal signal;
+};
+
+class Q_EXPORT QDataSink : public QAsyncIO {
+public:
+    // Call this to know how much I can take.
+    virtual int readyToReceive()=0;
+    virtual void receive(const uchar*, int count)=0;
+    virtual void eof()=0;
+    void maybeReady();
+};
+
+class Q_EXPORT QDataSource : public QAsyncIO {
+public:
+    virtual int readyToSend()=0; // returns -1 when never any more ready
+    virtual void sendTo(QDataSink*, int count)=0;
+    void maybeReady();
+
+    virtual bool rewindable() const;
+    virtual void enableRewind(bool);
+    virtual void rewind();
+};
+
+class Q_EXPORT QIODeviceSource : public QDataSource {
+    const int buf_size;
+    uchar *buffer;
+    QIODevice* iod;
+    bool rew;
+
+public:
+    QIODeviceSource(QIODevice*, int bufsize=4096);
+   ~QIODeviceSource();
+
+    int readyToSend();
+    void sendTo(QDataSink* sink, int n);
+    bool rewindable() const;
+    void enableRewind(bool on);
+    void rewind();
+};
+
+class Q_EXPORT QDataPump : public QObject {
+    Q_OBJECT
+    int interval;
+    QTimer timer;
+    QDataSource* source;
+    QDataSink* sink;
+
+public:
+    QDataPump(QDataSource*, QDataSink*);
+
+private slots:
+    void kickStart();
+    void tryToPump();
+};
+
+#endif	// QT_NO_ASYNC_IO
+
+#endif