00001 /* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */ 00002 /* 00003 * Copyright (c) 1997 Regents of the University of California. 00004 * All rights reserved. 00005 * 00006 * Redistribution and use in source and binary forms, with or without 00007 * modification, are permitted provided that the following conditions 00008 * are met: 00009 * 1. Redistributions of source code must retain the above copyright 00010 * notice, this list of conditions and the following disclaimer. 00011 * 2. Redistributions in binary form must reproduce the above copyright 00012 * notice, this list of conditions and the following disclaimer in the 00013 * documentation and/or other materials provided with the distribution. 00014 * 3. All advertising materials mentioning features or use of this software 00015 * must display the following acknowledgement: 00016 * This product includes software developed by the MASH Research 00017 * Group at the University of California Berkeley. 00018 * 4. Neither the name of the University nor of the Research Group may be 00019 * used 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/common/bi-connector.h,v 1.1 1998/12/08 19:09:02 haldar Exp $ 00035 */ 00036 00037 #ifndef ns_new_connector_h 00038 #define ns_new_connector_h 00039 00040 #include "object.h" 00041 00042 /* 00043 * An NsObject with two targets - up and down. 00044 */ 00045 class BiConnector : public NsObject { 00046 public: 00047 BiConnector(); 00048 inline NsObject* uptarget() { return uptarget_; } 00049 NsObject* downtarget() { return downtarget_; } 00050 virtual void drop(Packet* p); 00051 protected: 00052 virtual void drop(Packet* p, const char *s); 00053 int command(int argc, const char*const* argv); 00054 void recv(Packet*, Handler* callback = 0); 00055 virtual void sendDown(Packet* p, Handler* h) 00056 { downtarget_->recv(p, h); } 00057 inline virtual void sendUp(Packet* p, Handler* h) 00058 { uptarget_->recv(p, h); } 00059 00060 NsObject* uptarget_; // upstream target -->previously 00061 // defined as target_ for connector objects then supporting 00062 // unidrectional connectivity only. 00063 NsObject* downtarget_; // downstream target 00064 NsObject* drop_; // drop target for this connector 00065 }; 00066 00067 #endif //ns_new_connector 00068 00069 00070 00071 00072 00073 00074