gem5/dev/etherlink.hh
Andrew Schultz 2ab51fbcdb Changed the naming of Serializeable derived objects. Serializeable no longer has
objName as a member, instead it has the pure virtual function name().  SimObject
now has a objName member, and all classes derived directly from Serializeable
have to implement a name() function (which now makes them unique by pointer value)

cpu/simple_cpu/simple_cpu.cc:
    Change initialization of Event to get rid of Serializeable naming
dev/etherlink.cc:
dev/etherlink.hh:
    Seralizeable derived naming changes
sim/eventq.cc:
    Serializeable derived naming changes, also changed serialization process so it
    doesn't need to use nameChildren
sim/eventq.hh:
    Serializeable derived naming changes, remove constructor for specifying event name
sim/serialize.cc:
    Serializeable derived naming changes, remove setName function and the child naming
    pass for serialization
sim/serialize.hh:
    Serializeable derived naming changes, removed nameChildren, setName
sim/sim_object.cc:
sim/sim_object.hh:
    Serializeable derived naming changes

--HG--
extra : convert_revision : 67bcc275b6c210f7049f98a1ad0d22e8f5596a63
2003-10-31 17:32:04 -05:00

127 lines
3.7 KiB
C++

/*
* Copyright (c) 2003 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 a fixed bandwidth full duplex ethernet link
*/
#ifndef __ETHERLINK_HH__
#define __ETHERLINK_HH__
#include "sim/host.hh"
#include "sim/eventq.hh"
#include "dev/etherint.hh"
#include "dev/etherpkt.hh"
#include "sim/sim_object.hh"
class EtherDump;
/*
* Model for a fixed bandwidth full duplex ethernet link
*/
class EtherLink : public SimObject
{
protected:
class Interface;
/*
* Model for a single uni-directional link
*/
class Link : public Serializeable {
protected:
std::string objName;
Interface *txint;
Interface *rxint;
double ticks_per_byte;
EtherDump *dump;
protected:
/*
* Transfer is complete
*/
class DoneEvent : public Event
{
protected:
Link *link;
public:
DoneEvent(EventQueue *q, Link *l)
: Event(q), link(l) {}
virtual void process() { link->txDone(); }
virtual const char *description()
{ return "ethernet link completion"; }
};
friend class DoneEvent;
DoneEvent event;
PacketPtr packet;
void txDone();
public:
Link(const std::string &name, double rate, EtherDump *dump);
~Link() {}
virtual std::string name() const { return objName; }
bool busy() const { return (bool)packet; }
bool transmit(PacketPtr packet);
void setTxInt(Interface *i) { assert(!txint); txint = i; }
void setRxInt(Interface *i) { assert(!rxint); rxint = i; }
};
/*
* Interface at each end of the link
*/
class Interface : public EtherInt
{
private:
Link *txlink;
public:
Interface(const std::string &name, Link *txlink, Link *rxlink);
bool recvPacket(PacketPtr packet) { return txlink->transmit(packet); }
void sendDone() { }
};
Link *link1;
Link *link2;
EtherInt *int1;
EtherInt *int2;
public:
EtherLink(const std::string &name, EtherInt *i1, EtherInt *i2,
Tick speed, EtherDump *dump);
virtual ~EtherLink();
};
#endif // __ETHERLINK_HH__