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-/*
- * Copyright (c) 2002-2005 The Regents of The University of Michigan
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met: redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer;
- * 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;
- * neither the name of the copyright holders nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
- * OWNER 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.
- */
-
-/* @file
- * Device module for modelling an ethernet hub
- */
-
-#ifndef __ETHERBUS_H__
-#define __ETHERBUS_H__
-
-#include "sim/eventq.hh"
-#include "dev/etherpkt.hh"
-#include "sim/sim_object.hh"
-
-class EtherDump;
-class EtherInt;
-class EtherBus : public SimObject
-{
- protected:
- typedef std::list<EtherInt *> devlist_t;
- devlist_t devlist;
- double ticksPerByte;
- bool loopback;
-
- protected:
- class DoneEvent : public Event
- {
- protected:
- EtherBus *bus;
-
- public:
- DoneEvent(EventQueue *q, EtherBus *b)
- : Event(q), bus(b) {}
- virtual void process() { bus->txDone(); }
- virtual const char *description() { return "ethernet bus completion"; }
- };
-
- DoneEvent event;
- PacketPtr packet;
- EtherInt *sender;
- EtherDump *dump;
-
- public:
- EtherBus(const std::string &name, double speed, bool loopback,
- EtherDump *dump);
- virtual ~EtherBus() {}
-
- void txDone();
- void reg(EtherInt *dev);
- bool busy() const { return (bool)packet; }
- bool send(EtherInt *sender, PacketPtr &packet);
-};
-
-#endif // __ETHERBUS_H__