ConnectionServer.h

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//=============================================================================
//  Computational Process Networks class library
//  Copyright (C) 1997-2006  Gregory E. Allen and The University of Texas
//
//  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.
//
//  The GNU Public License is available in the file LICENSE, or you
//  can write to the Free Software Foundation, Inc., 59 Temple Place -
//  Suite 330, Boston, MA 02111-1307, USA, or you can find it on the
//  World Wide Web at http://www.fsf.org.
//=============================================================================
#ifndef CPN_CONNECTIONSERVER_H
#define CPN_CONNECTIONSERVER_H
#pragma once
#include "common_priv.h"
#include <cpn/io/ServerSocketHandle.h>
#include <cpn/io/SocketHandle.h>
#include <cpn/io/WakeupHandle.h>
#include <cpn/utils/Logger.h>
#include <cpn/threading/Future.h>
#include <cpn/threading/PthreadMutex.h>
#include <map>
namespace CPN {
    class CPN_LOCAL ConnectionServer {
    public:
        ConnectionServer(SockAddrList addrs, shared_ptr<Context> ctx);
        void Poll();
        void Wakeup() { wakeup.SendWakeup(); }
        void Close();
        shared_ptr<Sync::Future<int> > ConnectWriter(Key_t writerkey);
        shared_ptr<Sync::Future<int> > ConnectReader(Key_t readerkey);
        SocketAddress GetAddress();

        void Disable();
        void Enable();
        void LogState();
    private:
        class PendingConnection : public Sync::Future<int>, public SocketHandle {
        public:
            PendingConnection(Key_t k, ConnectionServer *serv);
            ~PendingConnection();
            int Get();
            void Set(int filed);
            Key_t GetKey() const { return key; }
        private:
            const Key_t key;
            ConnectionServer *server;
        };

        void PendingDone(Key_t key, PendingConnection *conn);

        typedef std::multimap<Key_t, shared_ptr<PendingConnection> > PendingMap;
        PthreadMutex lock;
        shared_ptr<Context> context;
        Logger logger;
        ServerSocketHandle server;
        WakeupHandle wakeup;
        PendingMap pendingconnections;
        bool enabled;
    };
}
#endif