CArchNetworkBSD.h

/*
 * synergy -- mouse and keyboard sharing utility
 * Copyright (C) 2012 Bolton Software Ltd.
 * Copyright (C) 2002 Chris Schoeneman
 * 
 * This package is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * found in the file COPYING that should have accompanied this file.
 * 
 * This package 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, see <http://www.gnu.org/licenses/>.
 */

#ifndef CARCHNETWORKBSD_H
#define CARCHNETWORKBSD_H

#include "IArchNetwork.h"
#include "IArchMultithread.h"
#if HAVE_SYS_TYPES_H
#   include <sys/types.h>
#endif
#if HAVE_SYS_SOCKET_H
#   include <sys/socket.h>
#endif

#if !HAVE_SOCKLEN_T
typedef int socklen_t;
#endif

// old systems may use char* for [gs]etsockopt()'s optval argument.
// this should be void on modern systems but char is forwards
// compatible so we always use it.
typedef char optval_t;

#define ARCH_NETWORK CArchNetworkBSD

class CArchSocketImpl {
public:
    int                 m_fd;
    int                 m_refCount;
};

class CArchNetAddressImpl {
public:
    CArchNetAddressImpl() : m_len(sizeof(m_addr)) { }

public:
    struct sockaddr     m_addr;
    socklen_t           m_len;
};

class CArchNetworkBSD : public IArchNetwork {
public:
    CArchNetworkBSD();
    virtual ~CArchNetworkBSD();

    virtual void init();

    // IArchNetwork overrides
    virtual CArchSocket     newSocket(EAddressFamily, ESocketType);
    virtual CArchSocket     copySocket(CArchSocket s);  virtual void        closeSocket(CArchSocket s);
    virtual void        closeSocketForRead(CArchSocket s);
    virtual void        closeSocketForWrite(CArchSocket s);
    virtual void        bindSocket(CArchSocket s, CArchNetAddress addr);
    virtual void        listenOnSocket(CArchSocket s);
    virtual CArchSocket acceptSocket(CArchSocket s, CArchNetAddress* addr);
    virtual bool        connectSocket(CArchSocket s, CArchNetAddress name);
    virtual int         pollSocket(CPollEntry[], int num, double timeout);
    virtual void        unblockPollSocket(CArchThread thread);
    virtual size_t      readSocket(CArchSocket s, void* buf, size_t len);
    virtual size_t      writeSocket(CArchSocket s,
                            const void* buf, size_t len);
    virtual void        throwErrorOnSocket(CArchSocket);
    virtual bool        setNoDelayOnSocket(CArchSocket, bool noDelay);
    virtual bool        setReuseAddrOnSocket(CArchSocket, bool reuse);
    virtual std::string     getHostName();
    virtual CArchNetAddress newAnyAddr(EAddressFamily);
    virtual CArchNetAddress copyAddr(CArchNetAddress);
    virtual CArchNetAddress nameToAddr(const std::string&);
    virtual void            closeAddr(CArchNetAddress);
    virtual std::string     addrToName(CArchNetAddress);
    virtual std::string     addrToString(CArchNetAddress);
    virtual EAddressFamily  getAddrFamily(CArchNetAddress);
    virtual void            setAddrPort(CArchNetAddress, int port);
    virtual int             getAddrPort(CArchNetAddress);
    virtual bool            isAnyAddr(CArchNetAddress);
    virtual bool            isEqualAddr(CArchNetAddress, CArchNetAddress);

private:
    const int*          getUnblockPipe();
    const int*          getUnblockPipeForThread(CArchThread);
    void                setBlockingOnSocket(int fd, bool blocking);
    void                throwError(int);
    void                throwNameError(int);

private:
    CArchMutex          m_mutex;
};

#endif