00001 /* 00002 * Copyright (c) 1991-1994, 1998 Regents of the University of California. 00003 * All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions 00007 * are met: 00008 * 1. Redistributions of source code must retain the above copyright 00009 * notice, this list of conditions and the following disclaimer. 00010 * 2. Redistributions in binary form must reproduce the above copyright 00011 * notice, this list of conditions and the following disclaimer in the 00012 * documentation and/or other materials provided with the distribution. 00013 * 3. All advertising materials mentioning features or use of this software 00014 * must display the following acknowledgement: 00015 * This product includes software developed by the University of 00016 * California, Berkeley and the Network Research Group at 00017 * Lawrence Berkeley Laboratory. 00018 * 4. Neither the name of the University nor of the Laboratory may be used 00019 * to endorse or promote products derived from this software without 00020 * specific prior written permission. 00021 * 00022 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 00023 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00024 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00025 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 00026 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00027 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00028 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00029 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00030 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00031 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00032 * SUCH DAMAGE. 00033 * 00034 * @(#) $Header: /cvsroot/nsnam/ns-2/emulate/net.h,v 1.8 2002/10/09 23:57:15 difa Exp $ (LBL) 00035 */ 00036 00037 #ifndef ns_net_h 00038 #define ns_net_h 00039 00040 #include <sys/socket.h> 00041 #include <fcntl.h> 00042 00043 #include "tclcl.h" 00044 #include "iohandler.h" 00045 #include "timer.h" 00046 00047 /* win95 #define's this...*/ 00048 #ifdef interface 00049 #undef interface 00050 #endif 00051 00052 class Packet; 00053 typedef void (*netpkt_handler)(void *userdata, Packet *p, 00054 const struct timeval &ts); 00055 00056 class Network : public TclObject { 00057 public: 00058 Network() : mode_(-1) { } 00059 virtual int command(int argc, const char*const* argv); 00060 virtual int send(u_char* buf, int len) = 0; 00061 virtual int recv(u_char* buf, int len, sockaddr& from, double& ts) = 0; 00062 virtual int recv(netpkt_handler callback, void *clientdata) { 00063 Tcl::instance().evalf("%s info class", name()); 00064 fprintf( stderr, "Callback Interface to receiving packets" 00065 " unsupported in class %s\n", 00066 Tcl::instance().result() ); 00067 return 0; 00068 } // callback called for every packet 00069 virtual int rchannel() = 0; 00070 virtual int schannel() = 0; 00071 int mode() { return mode_; } 00072 static int nonblock(int fd); 00073 static int parsemode(const char*); // strings to mode bits 00074 static char* modename(int); // and the reverse 00075 protected: 00076 int mode_; // read/write bits (from fcntl.h) 00077 }; 00078 #endif
1.7.1