34adf92749
dev/etherint.hh:
only send data to the peer if there is a peer
--HG--
extra : convert_revision : 33d90679ed91a2b2842ce4155ac4e58ec3defc22
66 lines
2.4 KiB
C++
66 lines
2.4 KiB
C++
/*
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* Copyright (c) 2003 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* @file
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* Class representing the actual interface between two ethernet
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* components.
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*/
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#ifndef __ETHERINT_HH__
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#define __ETHERINT_HH__
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#include <string>
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#include "dev/etherpkt.hh"
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#include "sim/sim_object.hh"
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/*
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* Class representing the actual interface between two ethernet
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* components. These components are intended to attach to another
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* ethernet interface on one side and whatever device on the other.
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*/
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class EtherInt : public SimObject
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{
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protected:
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EtherInt *peer;
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public:
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EtherInt(const std::string &name) : SimObject(name), peer(NULL) {}
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virtual ~EtherInt() {}
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void setPeer(EtherInt *p);
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virtual bool recvPacket(PacketPtr packet) = 0;
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void recvDone() { peer->sendDone(); }
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bool sendPacket(PacketPtr packet)
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{
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return peer ? peer->recvPacket(packet) : true;
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}
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virtual void sendDone() = 0;
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};
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#endif // __ETHERINT_HH__
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