2ac04c11ac
This patch adds explicit overrides as this is now required when using "-Wall" with clang >= 3.5, the latter now part of the most recent XCode. The patch consequently removes "virtual" for those methods where "override" is added. The latter should be enough of an indication. As part of this patch, a few minor issues that clang >= 3.5 complains about are also resolved (unused methods and variables).
137 lines
3.7 KiB
C++
137 lines
3.7 KiB
C++
/*
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* Copyright (c) 2003-2005 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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* Authors: Nathan Binkert
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*/
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/* @file
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* Interface to connect a simulated ethernet device to the real world
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*/
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#ifndef __ETHERTAP_HH__
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#define __ETHERTAP_HH__
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#include <queue>
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#include <string>
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#include "base/pollevent.hh"
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#include "dev/etherint.hh"
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#include "dev/etherobject.hh"
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#include "dev/etherpkt.hh"
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#include "params/EtherTap.hh"
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#include "sim/eventq.hh"
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#include "sim/sim_object.hh"
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class TapEvent;
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class TapListener;
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class EtherTapInt;
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/*
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* Interface to connect a simulated ethernet device to the real world
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*/
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class EtherTap : public EtherObject
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{
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protected:
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friend class TapEvent;
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TapEvent *event;
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protected:
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friend class TapListener;
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TapListener *listener;
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int socket;
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char *buffer;
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int buflen;
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uint32_t buffer_offset;
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uint32_t data_len;
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EtherDump *dump;
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void attach(int fd);
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void detach();
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protected:
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std::string device;
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std::queue<EthPacketPtr> packetBuffer;
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EtherTapInt *interface;
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void process(int revent);
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void enqueue(EthPacketData *packet);
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void retransmit();
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/*
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*/
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class TxEvent : public Event
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{
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protected:
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EtherTap *tap;
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public:
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TxEvent(EtherTap *_tap) : tap(_tap) {}
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void process() { tap->retransmit(); }
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virtual const char *description() const
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{ return "EtherTap retransmit"; }
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};
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friend class TxEvent;
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TxEvent txEvent;
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public:
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typedef EtherTapParams Params;
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EtherTap(const Params *p);
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virtual ~EtherTap();
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const Params *
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params() const
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{
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return dynamic_cast<const Params *>(_params);
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}
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EtherInt *getEthPort(const std::string &if_name, int idx) override;
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virtual bool recvPacket(EthPacketPtr packet);
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virtual void sendDone();
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void serialize(CheckpointOut &cp) const override;
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void unserialize(CheckpointIn &cp) override;
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};
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class EtherTapInt : public EtherInt
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{
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private:
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EtherTap *tap;
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public:
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EtherTapInt(const std::string &name, EtherTap *t)
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: EtherInt(name), tap(t)
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{ }
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virtual bool recvPacket(EthPacketPtr pkt) { return tap->recvPacket(pkt); }
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virtual void sendDone() { tap->sendDone(); }
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};
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#endif // __ETHERTAP_HH__
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