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/*
* Copyright (c) 2003-2005 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.
*
* Authors: Nathan Binkert
*/
#include <assert.h>
#include "base/inifile.hh"
#include "base/misc.hh"
#include "sim/builder.hh"
#include "sim/host.hh"
#include "sim/sim_object.hh"
#include "sim/core.hh"
using namespace std;
SimObjectBuilder::SimObjectBuilder(const std::string &_iniSection)
: ParamContext(_iniSection)
{
}
SimObjectBuilder::~SimObjectBuilder()
{
}
///////////////////////////////////////////
//
// SimObjectBuilder member definitions
//
///////////////////////////////////////////
// override ParamContext::parseParams() to check params based on
// instance name first. If not found, then check based on iniSection
// (as in default ParamContext implementation).
void
SimObjectBuilder::parseParams(IniFile &iniFile)
{
iniFilePtr = &iniFile; // set object member
ParamList::iterator i;
for (i = paramList->begin(); i != paramList->end(); ++i) {
string string_value;
if (iniFile.find(iniSection, (*i)->name, string_value))
(*i)->parse(string_value);
}
}
void
SimObjectBuilder::printErrorProlog(ostream &os)
{
ccprintf(os, "Error creating object '%s':\n", iniSection);
}
////////////////////////////////////////////////////////////////////////
//
// SimObjectClass member definitions
//
////////////////////////////////////////////////////////////////////////
// Map of class names to SimObjectBuilder creation functions. Need to
// make this a pointer so we can force initialization on the first
// reference; otherwise, some SimObjectClass constructors may be invoked
// before the classMap constructor.
map<string,SimObjectClass::CreateFunc> *SimObjectClass::classMap = NULL;
// SimObjectClass constructor: add mapping to classMap
SimObjectClass::SimObjectClass(const string &className, CreateFunc createFunc)
{
if (classMap == NULL)
classMap = new map<string,SimObjectClass::CreateFunc>();
if ((*classMap)[className])
panic("Error: simulation object class '%s' redefined\n", className);
// add className --> createFunc to class map
(*classMap)[className] = createFunc;
}
//
//
SimObject *
SimObjectClass::createObject(IniFile &configDB, const std::string &iniSection)
{
string type;
if (!configDB.find(iniSection, "type", type)) {
// no C++ type associated with this object
return NULL;
}
// look up className to get appropriate createFunc
if (classMap->find(type) == classMap->end())
panic("Simulator object type '%s' not found.\n", type);
CreateFunc createFunc = (*classMap)[type];
// call createFunc with config hierarchy node to get object
// builder instance (context with parameters for object creation)
SimObjectBuilder *objectBuilder = (*createFunc)(iniSection);
assert(objectBuilder != NULL);
// parse all parameters in context to generate parameter values
objectBuilder->parseParams(configDB);
// now create the actual simulation object
SimObject *object = objectBuilder->create();
assert(object != NULL);
// echo object parameters to stats file (for documenting the
// config used to generate the associated stats)
ccprintf(*configStream, "[%s]\n", object->name());
ccprintf(*configStream, "type=%s\n", type);
objectBuilder->showParams(*configStream);
ccprintf(*configStream, "\n");
// done with the SimObjectBuilder now
delete objectBuilder;
return object;
}
//
// static method:
//
void
SimObjectClass::describeAllClasses(ostream &os)
{
map<string,CreateFunc>::iterator iter;
for (iter = classMap->begin(); iter != classMap->end(); ++iter) {
const string &className = iter->first;
CreateFunc createFunc = iter->second;
os << "[" << className << "]\n";
// create dummy object builder just to instantiate parameters
SimObjectBuilder *objectBuilder = (*createFunc)("");
// now get the object builder to describe ite params
objectBuilder->describeParams(os);
os << endl;
// done with the object builder now
delete objectBuilder;
}
}
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