Webmaster  |  Imprint 

C++ Server Pages

Main  |  License  |  Documentation  |  Download 

/home/tommi/cxxtools/include/cxxtools/selector.h

/*
 * Copyright (C) 2006-2007 Laurentiu-Gheorghe Crisan
 * Copyright (C) 2006-2007 Marc Boris Duerner
 * Copyright (C) 2006-2007 PTV AG
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * As a special exception, you may use this file as part of a free
 * software library without restriction. Specifically, if other files
 * instantiate templates or use macros or inline functions from this
 * file, or you compile this file and link it with other files to
 * produce an executable, this file does not by itself cause the
 * resulting executable to be covered by the GNU General Public
 * License. This exception does not however invalidate any other
 * reasons why the executable file might be covered by the GNU Library
 * General Public License.
 * 
 * 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
#ifndef CXXTOOLS_SYSTEM_SELECTOR_H
#define CXXTOOLS_SYSTEM_SELECTOR_H

#include <cxxtools/timespan.h>
#include <cxxtools/noncopyable.h>
#include <cxxtools/connectable.h>
#include <cxxtools/api.h>
#include <map>

namespace cxxtools {

    class Timer;
    class Selectable;
    class Application;
    class SelectorImpl;

    class CXXTOOLS_API SelectorBase : public Connectable
                                     , protected NonCopyable
    {
        friend class Selectable;
        friend class Timer;

        public:
            static const std::size_t WaitInfinite = static_cast<const std::size_t>(-1);

            virtual ~SelectorBase();

            void add(Selectable& s);

            void remove(Selectable& s);

            void add(Timer& timer);

            void remove(Timer& timer);

            bool wait(std::size_t msecs = WaitInfinite);

            void wake();

        protected:
            SelectorBase();

            void onAddTimer(Timer& timer);

            void onRemoveTimer( Timer& timer );

            void onTimerChanged( Timer& timer );

            virtual void onAdd(Selectable&) = 0;

            virtual void onRemove(Selectable&) = 0;

            virtual void onReinit(Selectable&) = 0;

            virtual void onChanged(Selectable& s) = 0;

            virtual bool onWait(std::size_t msecs) = 0;

            virtual void onWake() = 0;

        private:
            bool updateTimer(size_t& timeout);

            typedef std::multimap<Timespan, Timer*> TimerMap;

            TimerMap _timers;

            void* _reserved;
    };

    class CXXTOOLS_API Selector : public SelectorBase
    {
        public:
            Selector();

            virtual ~Selector();

            SelectorImpl& impl();

        protected:
            void onAdd( Selectable& dev );

            void onRemove( Selectable& dev );

            void onReinit(Selectable&);

            void onChanged(Selectable&);

            bool onWait(std::size_t msecs = WaitInfinite);

            void onWake();

        private:
            class SelectorImpl* _impl;
    };

} //namespace cxxtools

#endif

Copyright © 2008 The Tntnet Development Team

Tntnet 1.6