/*
 * Copyright (c) 1996 Gunther Schadow.  All rights reserved.
 *
 * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef _UNS_SOCKET_H
#define _UNS_SOCKET_H

#pragma interface

#include <Socket.h>
#include <Signal.h>
#include <sys/socket.h>
#include <sys/un.h>

class UNSSocket: public Socket
{
 public:
  UNSSocket();
  UNSSocket(const char *address,
	    const char *param = NULL, size_t parlen = 0);
  virtual ~UNSSocket();

 public:
  bool    connect(flags_t mode);
  Socket *accept(flags_t mode);
  size_t  send(const char *buf, size_t len, int msgf = 0);
  size_t  recv(char *buf, size_t max, int msgf = 0);
  void    shutdown(flags_t mode);
  void    close(flags_t);
  bool    async(bool, pid_t pid = 0);
  bool    noblock(bool);
  
  bool    is_sendready(int sec, int usec = 0) const;
  bool    is_recvready(int sec, int usec = 0) const;
  bool    is_exception(int sec, int usec = 0) const;

  const flags_t _cap_plus  = full_duplex | send_recv | multiplex 
                           | accept_able | async_mode | noblock_mode 
                           | leafnode;
  const flags_t _cap_minus = 0;

 private:
  int    _sd;
  struct sockaddr_un _saddr;
  struct sockaddr_un _paddr;
  bool   _saddr_bound;
  Signal _sigpipe;

  void parse_args(const char *s, int l = -1);
  void setaddr(const char *serv, const char *host = NULL);

 private:
  flags_t cap_plus()  const { return _cap_plus;  }
  flags_t cap_minus() const { return _cap_minus; }

         Socket *ctor();
  static Socket *ctor(const char *address,
		      const char *param = NULL, size_t parlen = 0);

  friend class Socket; // make ctor accessible
    
 private: // disallowed
  UNSSocket(const UNSSocket&);
  const UNSSocket &operator=(const UNSSocket &s);
};

#endif