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/*
* Copyright (c) 1991-1994, 1998 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and the Network Research Group at
* Lawrence Berkeley Laboratory.
* 4. Neither the name of the University nor of the Laboratory may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#) $Header: /cvsroot/nsnam/ns-2/emulate/net.h,v 1.9 2010/03/08 05:54:50 tom_henderson Exp $ (LBL)
*/
#ifndef ns_net_h
#define ns_net_h
#include <sys/socket.h>
#include <fcntl.h>
#include "tclcl.h"
#include "iohandler.h"
#include "timer.h"
/* win95 #define's this...*/
#ifdef interface
#undef interface
#endif
class Packet;
typedef void (*netpkt_handler)(void *userdata, Packet *p,
const struct timeval &ts);
class Network : public TclObject {
public:
Network() : mode_(-1) { }
virtual int command(int argc, const char*const* argv);
virtual int send(u_char* buf, int len) = 0;
virtual int recv(u_char* buf, int len, sockaddr& from, double& ts) = 0;
virtual int recv(netpkt_handler callback, void *clientdata); // callback called for every packet
virtual int rchannel() = 0;
virtual int schannel() = 0;
int mode() { return mode_; }
static int nonblock(int fd);
static int parsemode(const char*); // strings to mode bits
static char* modename(int); // and the reverse
protected:
int mode_; // read/write bits (from fcntl.h)
};
#endif
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