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/* ------------------------------------------------------------------------
* $Id: Socket.hh,v 1.5 2001/06/29 15:00:38 elm Exp $
*
* This file is part of 3Dwm: The Three-Dimensional User Environment.
*
* 3Dwm: The Three-Dimensional User Environment:
* <http://www.3dwm.org>
*
* Chalmers Medialab
* <http://www.medialab.chalmers.se>
*
* ------------------------------------------------------------------------
* File created 2000-09-23 by Niklas Elmqvist.
*
* Copyright (c) 2000 Niklas Elmqvist <elm@3dwm.org>.
* ------------------------------------------------------------------------
* 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.
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
* ------------------------------------------------------------------------
*/
#ifndef _Socket_hh_
#define _Socket_hh_
// -- System Includes
#include <netinet/in.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <utility>
// -- Class Declarations
/**
* Socket address abstract base class.
**/
class Address {
public:
int getType() const { return _type; }
virtual const sockaddr *getAddr() const = 0;
virtual int getAddrLen() const = 0;
protected:
Address() : _type(AF_INET) { }
Address(int type) : _type(type) { }
virtual ~Address() { }
private:
int _type;
};
class InetAddress : public Address {
public:
InetAddress(int port);
InetAddress(const sockaddr_in &sin);
InetAddress(const char *host, int port);
const sockaddr *getAddr() const { return (sockaddr *) &_sin; }
int getAddrLen() const { return sizeof(_sin); }
private:
sockaddr_in _sin;
};
/**
* Simple socket abstraction class. Wraps BSD Sockets in a cleaner,
* easy-to-use interface.
**/
class Socket {
public:
/**
* Default constructor.
*
* @param protocol the protocol type.
**/
Socket(int protocol = AF_INET);
/**
* Constructor.
*
* @param fd an opened file descriptor to use.
* @param protocol the protocol type.
**/
Socket(int fd, int protocol);
/**
* Copy constructor.
**/
Socket(const Socket &s);
/**
* Destructor.
**/
virtual ~Socket();
/**
* Connect the socket to a given address.
*
* @param addr the address of the host to connect to.
**/
void connect(const Address &addr);
/**
* Send data over the socket.
*
* @param data the data buffer to send.
* @param len the number of bytes to send.
* @return the number of bytes actually sent.
**/
int send(const void *data, int len);
/**
* Receive data from the socket.
*
* @param data the data buffer to store the received info in.
* @param len the length of the data buffer.
* @return the number of bytes actually received.
**/
int receive(void *data, int len);
/**
* Shutdown the socket.
**/
void shutdown(bool norecv = true, bool nosend = true);
/**
* Close the socket.
**/
void close();
/**
* Start listening for connections on a socket.
*
* @param int backlog the maximum number of queued connections.
**/
void listen(int backlog);
/**
* Accept an incoming connection to the socket.
*
* @return a pair of the new socket and the client address.
**/
std::pair<Socket *, Address *> accept();
/**
* Bind the socket to an address.
*
* @param addr the address to bind the socket to.
**/
void bind(const Address &addr);
/**
* Set socket to be nonblocking.
**/
void setNonblocking();
/**
* Retrieve socket protocol type.
*
* @return the protocol type.
**/
int getProtocol() const { return _protocol; }
/**
* Is the remote peer located on the same host as this socket?
*
* @return true if the peer and socket are colocated.
**/
bool isSameHost() const;
protected:
// Socket file descriptor
int _socket;
// Protocol type
int _protocol;
};
#endif /* socket.hh */
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