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/*
Copyright (C) 1999-2001 Stefan Westerfeld
stefan@space.twc.de
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/*
* BC - Status (2002-03-08): QIOManager.
*
* QIOManager is kept binary compatible.
*/
#ifndef QIOMANAGER_H
#define QIOMANAGER_H
#include "iomanager.h"
#include <qobject.h>
#include <qtimer.h>
#include <qsocketnotifier.h>
#include <list>
#include "arts_export.h"
namespace Arts {
class QIOWatch;
class QTimeWatch;
/**
* QIOManager performs MCOP I/O inside the Qt event loop. This way, you will
* be able to receive requests and notifications inside Qt application. The
* usual way to set it up is:
*
* <pre>
* KApplication app(argc, argv); // as usual
*
* Arts::QIOManager qiomanager;
* Arts::Dispatcher dispatcher(&qiomanager);
* ...
* return app.exec(); // as usual
* </pre>
*/
class ARTS_EXPORT QIOManager : public IOManager {
protected:
friend class QIOWatch;
friend class QTimeWatch;
std::list<QIOWatch *> fdList;
std::list<QTimeWatch *> timeList;
void dispatch(QIOWatch *ioWatch);
void dispatch(QTimeWatch *timeWatch);
public:
QIOManager();
~QIOManager();
void processOneEvent(bool blocking);
void run();
void terminate();
void watchFD(int fd, int types, IONotify *notify);
void remove(IONotify *notify, int types);
void addTimer(int milliseconds, TimeNotify *notify);
void removeTimer(TimeNotify *notify);
/**
* This controls what QIOManager will do while waiting for the result
* of an MCOP request, the possibilities are:
*
* @li block until the request is completed (true)
* @li open a local event loop (false)
*
* It is much easier to write working and reliable code with blocking
* enabled, so this is the default. If you disable blocking, you have
* to deal with the fact that timers, user interaction and similar
* "unpredictable" things will possibly influence your code in all
* places where you make a remote MCOP call (which is quite often in
* MCOP applications).
*/
void setBlocking(bool blocking);
/**
* Query whether blocking is enabled.
*/
bool blocking();
};
}
#endif
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