socketport.h

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// Copyright (C) 1999-2005 Open Source Telecom Corporation.
// Copyright (C) 2006-2010 David Sugar, Tycho Softworks.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// 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 General Public License.
//
// This exception applies only to the code released under the name GNU
// Common C++.  If you copy code from other releases into a copy of GNU
// Common C++, as the General Public License permits, the exception does
// not apply to the code that you add in this way.  To avoid misleading
// anyone as to the status of such modified files, you must delete
// this exception notice from them.
//
// If you write modifications of your own for GNU Common C++, it is your choice
// whether to permit this exception to apply to your modifications.
// If you do not wish that, delete this exception notice.
//

#ifndef CCXX_SOCKETPORT_H_
#define CCXX_SOCKETPORT_H_

#ifndef CCXX_ADDRESS_H_
#include <cc++/address.h>
#endif

#ifndef CCXX_SOCKET_H_
#include <cc++/socket.h>
#endif

#ifdef  CCXX_NAMESPACES
namespace ost {
#endif

class __EXPORT SocketPort;
class __EXPORT SocketService;

class __EXPORT SocketPort : public Socket, public TimerPort
{
private:
    SocketPort *next, *prev;
    SocketService *service;
#ifndef WIN32
    struct timeval porttimer;
#ifdef USE_POLL
    struct pollfd   * ufd;
#endif
#else
    HANDLE event;
#endif
    bool detect_pending;
    bool detect_output;
    bool detect_disconnect;

    friend class SocketService;

protected:
    SocketPort(SocketService *svc, TCPSocket &tcp);
#ifdef  CCXX_IPV6
    SocketPort(SocketService *svc, TCPV6Socket &tcp);
#endif

    SocketPort(SocketService *svc, const IPV4Address &ia, tpport_t port);
#ifdef  CCXX_IPV6
    SocketPort(SocketService *svc, const IPV6Address &ia, tpport_t port);
#endif

    SocketPort(SocketService *svc, const IPV4Host &ih, tpport_t port);
#ifdef  CCXX_IPV6
    SocketPort(SocketService *svc, const IPV6Host &ih, tpport_t port);
#endif

     void attach( SocketService* svc );


    virtual ~SocketPort();

    void setDetectPending( bool );

    bool getDetectPending( void ) const
        { return detect_pending; }

    void setDetectOutput( bool );

    bool getDetectOutput( void ) const
        { return detect_output; }

    virtual void expired(void);

    virtual void pending(void);

    virtual void output(void);

    virtual void disconnect(void);

    Error connect(const IPV4Address &ia, tpport_t port);
#ifdef  CCXX_IPV6
    Error connect(const IPV6Address &ia, tpport_t port);
#endif

    inline ssize_t send(const void *buf, size_t len)
        {return _IORET64 ::send(so, (const char *)buf, _IOLEN64 len, 0);};

    inline ssize_t receive(void *buf, size_t len)
        {return _IORET64 ::recv(so, (char *)buf, _IOLEN64 len, 0);};

    inline ssize_t peek(void *buf, size_t len)
        {return _IORET64 ::recv(so, (char *)buf, _IOLEN64 len, MSG_PEEK);};

public:
    void setTimer(timeout_t timeout = 0);

    void incTimer(timeout_t timeout);
};

class __EXPORT SocketService : public Thread, private Mutex
{
private:
#ifndef WIN32
    fd_set connect;
    int iosync[2];
    int hiwater;
#else
    // private syncronization class
    class Sync;
    Sync* sync;
#endif
    int volatile count;
    SocketPort* volatile first, *last;

    void attach(SocketPort *port);
    void detach(SocketPort *port);

    void run(void);

    friend class SocketPort;

protected:
    virtual void onUpdate(unsigned char buf);

    virtual void onEvent(void);

    virtual void onCallback(SocketPort *port);

public:
    void update(unsigned char flag = 0xff);

    SocketService(int pri = 0, size_t stack = 0, const char *id = NULL);

    virtual ~SocketService();

    inline int getCount(void) const
        {return count;};
};

#ifdef  CCXX_NAMESPACES
}
#endif

#endif