00001 /* 00002 * Copyright (c) 1997, 1998 The 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 MASH Research 00016 * Group at the University of California, Berkeley. 00017 * 4. Neither the name of the University nor of the Research Group may be used 00018 * to endorse or promote products derived from this software without 00019 * specific prior written permission. 00020 * 00021 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 00022 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00023 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00024 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 00025 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00026 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00027 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00028 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00029 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00030 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00031 * SUCH DAMAGE. 00032 * 00033 * @(#) $Header: /cvsroot/nsnam/ns-2/emulate/tap.h,v 1.2 2002/09/23 23:25:05 alefiyah Exp $ (ISI) 00034 */ 00035 00036 00037 #ifndef tap_h 00038 #define tap_h 00039 00040 #include "tclcl.h" 00041 #include "net.h" 00042 #include "packet.h" 00043 #include "agent.h" 00044 00045 00046 #define TAPDEBUG 1 00047 #ifdef TAPDEBUG 00048 #define TDEBUG(x) { if (TAPDEBUG) fprintf(stderr, (x)); } 00049 #define TDEBUG2(x,y) { if (TAPDEBUG) fprintf(stderr, (x), (y)); } 00050 #define TDEBUG3(x,y,z) { if (TAPDEBUG) fprintf(stderr, (x), (y), (z)); } 00051 #define TDEBUG4(w,x,y,z) { if (TAPDEBUG) fprintf(stderr, (w), (x), (y), (z)); } 00052 #define TDEBUG5(v,w,x,y,z) { if (TAPDEBUG) fprintf(stderr, (v), (w), (x), (y), (z)); } 00053 #else 00054 #define TDEBUG(x) { } 00055 #define TDEBUG2(x,y) { } 00056 #define TDEBUG3(x,y,z) { } 00057 #define TDEBUG4(w,x,y,z) { } 00058 #define TDEBUG5(v,w,x,y,z) { } 00059 #endif 00060 00061 #include <errno.h> 00062 00063 class TapAgent : public Agent, public IOHandler { 00064 public: 00065 TapAgent(); 00066 int command(int, const char*const*); 00067 void recv(Packet* p, Handler*); /* sim->live net */ 00068 private: 00069 virtual int sendpkt(Packet *); 00070 virtual void recvpkt(); 00071 protected: 00072 int maxpkt_; /* max size allocated to recv a pkt */ 00073 void dispatch(int); /* invoked via scheduler on I/O event */ 00074 int linknet(); /* establish I/O handler */ 00075 Network* net_; /* live network object */ 00076 double now() { return Scheduler::instance().clock(); } 00077 }; 00078 00079 00080 00081 #endif /* tap_h */ 00082 00083 00084 00085 00086
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