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/*
* 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.
*/
#include <assert.h>
#include "base/inifile.hh"
#include "base/misc.hh"
#include "sim/builder.hh"
#include "sim/configfile.hh"
#include "sim/host.hh"
#include "sim/sim_object.hh"
#include "sim/universe.hh"
using namespace std;
ostream &
builderStream()
{
static ofstream file;
static ostream *stream = NULL;
if (!stream) {
if (!outputDirectory.empty()) {
string filename = outputDirectory + "builder.txt";
file.open(filename.c_str());
stream = &file;
} else {
stream = outputStream;
}
}
return *stream;
}
SimObjectBuilder::SimObjectBuilder(const string &_configClass,
const string &_instanceName,
ConfigNode *_configNode,
const string &_simObjClassName)
: ParamContext(_configClass, true),
instanceName(_instanceName),
configNode(_configNode),
simObjClassName(_simObjClassName)
{
}
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.findDefault(instanceName, (*i)->name, string_value)) {
(*i)->parse(string_value);
}
else if (iniFile.findDefault(iniSection, (*i)->name, string_value)) {
(*i)->parse(string_value);
}
}
}
void
SimObjectBuilder::printErrorProlog(ostream &os)
{
os << "Error creating object '" << getInstanceName()
<< "' of type '" << simObjClassName
<< "', section '" << iniSection << "':" << endl;
}
////////////////////////////////////////////////////////////////////////
//
// 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])
{
cerr << "Error: simulation object class " << className << " redefined"
<< endl;
fatal("");
}
// add className --> createFunc to class map
(*classMap)[className] = createFunc;
}
//
//
SimObject *
SimObjectClass::createObject(IniFile &configDB,
const string &configClassName,
const string &objName,
ConfigNode *configNode)
{
// find simulation object class name from configuration class
// (specified by 'type=' parameter)
string simObjClassName;
if (!configDB.findDefault(configClassName, "type", simObjClassName)) {
cerr << "Configuration class '" << configClassName << "' not found."
<< endl;
abort();
}
// look up className to get appropriate createFunc
if (classMap->find(simObjClassName) == classMap->end()) {
cerr << "Simulator object class '" << simObjClassName << "' not found."
<< endl;
abort();
}
CreateFunc createFunc = (*classMap)[simObjClassName];
// call createFunc with config hierarchy node to get object
// builder instance (context with parameters for object creation)
SimObjectBuilder *objectBuilder = (*createFunc)(configClassName,
objName, configNode,
simObjClassName);
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)
builderStream() << "[" << object->name() << "]" << endl;
builderStream() << "type=" << simObjClassName << endl;
objectBuilder->showParams(builderStream());
builderStream() << endl;
// 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)("", "", NULL, "");
// 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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