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129 lines
3.3 KiB
129 lines
3.3 KiB
/*
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Copyright (C) 2001 Stefan Westerfeld
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stefan@space.twc.de
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#ifndef ARTS_GIOMANAGER_H
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#define ARTS_GIOMANAGER_H
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#include <glib.h>
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#include <iomanager.h>
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#include <list>
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#include <stack>
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#include <map>
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#include "arts_export.h"
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/*
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* BC - Status (2002-03-08): GIOManager
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*
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* This class will be kept binary compatible (d ptr for extensions).
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*/
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namespace Arts {
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class GIOWatch;
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class GIOManagerPrivate;
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struct GIOManagerSource;
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class GIOTimeWatch;
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class GIOManagerBlocking;
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/**
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* GIOManager performs MCOP I/O inside the Glib event loop. This way, you will
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* be able to receive requests and notifications inside Glib application. The
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* usual way to set it up is:
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*
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* <pre>
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* GMainLoop *main_loop = g_main_new(FALSE); // as usual
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*
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* Arts::GIOManager iomanager;
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* Arts::Dispatcher dispatcher(&iomanager);
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*
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* g_main_run(main_loop); // as usual
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* </pre>
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*/
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class ARTS_EXPORT GIOManager : public IOManager {
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private:
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GIOManagerPrivate *d;
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protected:
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std::list<GIOWatch *> fdList;
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std::list<GIOTimeWatch *> timeList;
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int level;
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bool _blocking;
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bool fileDescriptorsNeedRecheck;
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GMainContext *context;
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GIOManagerSource *source;
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GIOManagerBlocking *gioManagerBlocking;
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public:
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GIOManager(GMainContext *context = 0);
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~GIOManager();
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void processOneEvent(bool blocking);
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void run();
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void terminate();
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void watchFD(int fd, int types, IONotify *notify);
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void remove(IONotify *notify, int types);
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void addTimer(int milliseconds, TimeNotify *notify);
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void removeTimer(TimeNotify *notify);
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/**
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* This controls what GIOManager will do while waiting for the result
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* of an MCOP request, the possibilities are:
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*
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* @li block until the request is completed (true)
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* @li open a local event loop (false)
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*
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* It is much easier to write working and reliable code with blocking
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* enabled, so this is the default. If you disable blocking, you have
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* to deal with the fact that timers, user interaction and similar
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* "unpredictable" things will possibly influence your code in all
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* places where you make a remote MCOP call (which is quite often in
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* MCOP applications).
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*/
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void setBlocking(bool blocking);
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/* GSource stuff: */
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/**
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* - internal -
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*
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* (implements the GSource prepare)
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*/
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gboolean prepare(gint *timeout);
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/**
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* - internal -
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*
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* (implements the GSource check)
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*/
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gboolean check();
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/**
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* - internal -
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*
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* (implements the GSource dispatch)
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*/
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gboolean dispatch(GSourceFunc callback, gpointer user_data);
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};
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}
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#endif /* ARTS_GIOMANAGER_H */
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