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/*
* Copyright (c) 2006 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.
*
* Authors: Nathan Binkert
*/
#include <Python.h>
#include <string>
#include "base/inifile.hh"
#include "base/output.hh"
#include "dev/etherdevice.hh"
#include "dev/etherobject.hh"
#include "dev/etherint.hh"
#include "mem/mem_object.hh"
#include "mem/port.hh"
#include "sim/sim_object.hh"
using namespace std;
/**
* Look up a MemObject port. Helper function for connectPorts().
*/
Port *
lookupPort(SimObject *so, const std::string &name, int i)
{
MemObject *mo = dynamic_cast<MemObject *>(so);
if (mo == NULL) {
warn("error casting SimObject %s to MemObject", so->name());
return NULL;
}
Port *p = mo->getPort(name, i);
if (p == NULL)
warn("error looking up port %s on object %s", name, so->name());
return p;
}
EtherInt *
lookupEthPort(SimObject *so, const std::string &name, int i)
{
EtherObject *eo = dynamic_cast<EtherObject *>(so);
EtherDevice *ed = dynamic_cast<EtherDevice *>(so);
if (eo == NULL && ed == NULL) {
warn("error casting SimObject %s", so->name());
return NULL;
}
EtherInt *p = NULL;
if (eo)
p = eo->getEthPort(name, i);
else
p = ed->getEthPort(name, i);
return p;
}
/**
* Connect the described MemObject ports. Called from Python via SWIG.
* The indices i1 & i2 will be -1 for regular ports, >= 0 for vector ports.
*/
int
connectPorts(SimObject *o1, const std::string &name1, int i1,
SimObject *o2, const std::string &name2, int i2)
{
EtherObject *eo1, *eo2;
EtherDevice *ed1, *ed2;
MemObject *mo1, *mo2;
eo1 = dynamic_cast<EtherObject*>(o1);
ed1 = dynamic_cast<EtherDevice*>(o1);
mo1 = dynamic_cast<MemObject*>(o1);
eo2 = dynamic_cast<EtherObject*>(o2);
ed2 = dynamic_cast<EtherDevice*>(o2);
mo2 = dynamic_cast<MemObject*>(o2);
if ((eo1 || ed1) && (eo2 || ed2)) {
EtherInt *p1 = lookupEthPort(o1, name1, i1);
EtherInt *p2 = lookupEthPort(o2, name2, i2);
if (p1 != NULL && p2 != NULL) {
p1->setPeer(p2);
p2->setPeer(p1);
return 1;
}
}
Port *p1 = lookupPort(o1, name1, i1);
Port *p2 = lookupPort(o2, name2, i2);
if (p1 == NULL || p2 == NULL) {
warn("connectPorts: port lookup error");
return 0;
}
p1->setPeer(p2);
p2->setPeer(p1);
return 1;
}
inline IniFile &
inifile()
{
static IniFile inifile;
return inifile;
}
/**
* Pointer to the Python function that maps names to SimObjects.
*/
PyObject *resolveFunc = NULL;
/**
* Convert a pointer to the Python object that SWIG wraps around a C++
* SimObject pointer back to the actual C++ pointer. See main.i.
*/
extern "C" SimObject *convertSwigSimObjectPtr(PyObject *);
SimObject *
resolveSimObject(const string &name)
{
PyObject *pyPtr = PyEval_CallFunction(resolveFunc, "(s)", name.c_str());
if (pyPtr == NULL) {
PyErr_Print();
panic("resolveSimObject: failure on call to Python for %s", name);
}
SimObject *simObj = convertSwigSimObjectPtr(pyPtr);
if (simObj == NULL)
panic("resolveSimObject: failure on pointer conversion for %s", name);
return simObj;
}
/**
* Load config.ini into C++ database. Exported to Python via SWIG;
* invoked from m5.instantiate().
*/
void
loadIniFile(PyObject *_resolveFunc)
{
resolveFunc = _resolveFunc;
// The configuration database is now complete; start processing it.
inifile().load(simout.resolve("config.ini"));
}
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