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/* cone_consumer.cpp -- Cone producer/consumer pattern
Copyright 2007 Matthias Koeppe
This file is part of LattE.
LattE is free software; you can redistribute it and/or modify it
under the terms of the version 2 of the GNU General Public License
as published by the Free Software Foundation.
LattE is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with LattE; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include <cassert>
#include "cone_consumer.h"
#include "print.h"
ConeConsumer::~ConeConsumer()
{
}
void
ConeConsumer::SetNumCones(size_t num_cones)
{
// Do nothing.
}
CollectingConeConsumer::CollectingConeConsumer()
: Collected_Cones(NULL)
{
}
int CollectingConeConsumer::ConsumeCone(listCone *cone)
{
assert(cone->rest == NULL);
cone->rest = Collected_Cones;
Collected_Cones = cone;
return 1; // means "success, please continue"
}
PrintingConeConsumer::PrintingConeConsumer(string filename)
: stream(filename.c_str()), cone_count(0)
{}
int
PrintingConeConsumer::ConsumeCone(listCone *cone)
{
assert(cone->rest == NULL);
int numOfVars = cone->rays->first.length();
cone_count++;
printConeToFile(stream, cone, numOfVars);
freeCone(cone);
return 1; // means "success, please continue"
}
ConeProducer::~ConeProducer()
{}
SingletonConeProducer::SingletonConeProducer(listCone *a_cone)
: cone(a_cone)
{}
void SingletonConeProducer::Produce(ConeConsumer &consumer)
{
consumer.ConsumeCone(cone);
}
ListConeReadingConeProducer::ListConeReadingConeProducer
(const string &a_filename, int a_size_estimate)
: filename(a_filename), size_estimate(a_size_estimate)
{
}
void ListConeReadingConeProducer::Produce(ConeConsumer &consumer)
{
if (size_estimate)
consumer.SetNumCones(size_estimate);
ifstream file(filename.c_str());
if (!file.good()) {
cerr << "Error opening file `" << filename << "'" << endl;
exit(1);
}
readListConeFromFile(file, consumer);
}
ConeTransducer::ConeTransducer()
: consumer(0)
{}
void
ConeTransducer::SetConsumer(ConeConsumer *a_consumer)
{
consumer = a_consumer;
}
CompositeConeProducer::CompositeConeProducer(ConeProducer *a_producer,
ConeTransducer *a_transducer)
: producer(a_producer), transducer(a_transducer)
{
}
void
CompositeConeProducer::Produce(ConeConsumer &consumer)
{
transducer->SetConsumer(&consumer);
producer->Produce(*transducer);
}
CompositeConeConsumer::CompositeConeConsumer(ConeTransducer *a_transducer,
ConeConsumer *a_consumer)
: transducer(a_transducer), consumer(a_consumer)
{
transducer->SetConsumer(consumer);
}
int CompositeConeConsumer::ConsumeCone(listCone *cone)
{
return transducer->ConsumeCone(cone);
}
ConeProducer *
compose(ConeProducer *a_producer, ConeTransducer *a_transducer)
{
return new CompositeConeProducer(a_producer, a_transducer);
}
ConeConsumer *
compose(ConeTransducer *a_transducer, ConeConsumer *a_consumer)
{
return new CompositeConeConsumer(a_transducer, a_consumer);
}
ProgressPrintingConeTransducer::ProgressPrintingConeTransducer()
: count(0)
{
}
int ProgressPrintingConeTransducer::ConsumeCone(listCone *cone)
{
int result;
result = consumer->ConsumeCone(cone);
count++;
if (count % 1000 == 0) {
cerr << count << " cones done. \r";
}
return result;
}
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