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/*
* Copyright (C) 2015-2020 Mateusz Łącki and Michał Startek.
*
* This file is part of IsoSpec.
*
* IsoSpec is free software: you can redistribute it and/or modify
* it under the terms of the Simplified ("2-clause") BSD licence.
*
* IsoSpec 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.
*
* You should have received a copy of the Simplified BSD Licence
* along with IsoSpec. If not, see <https://opensource.org/licenses/BSD-2-Clause>.
*/
#include <cstdlib>
#include "dirtyAllocator.h"
namespace IsoSpec
{
DirtyAllocator::DirtyAllocator(
const int dim, const int tabSize_
): tabSize(tabSize_)
{
cellSize = sizeof(double) + sizeof(int) * dim;
// Fix memory alignment problems for SPARC
if(cellSize % sizeof(double) != 0)
cellSize += sizeof(double) - cellSize % sizeof(double);
currentTab = malloc( cellSize * tabSize );
if(currentTab == NULL)
throw std::bad_alloc();
currentConf = currentTab;
endOfTablePtr = reinterpret_cast<char*>(currentTab) + cellSize*tabSize;
}
DirtyAllocator::~DirtyAllocator()
{
for(unsigned int i = 0; i < prevTabs.size(); ++i) free(prevTabs[i]);
free(currentTab);
}
void DirtyAllocator::shiftTables()
{
prevTabs.push_back(currentTab);
currentTab = malloc( cellSize * tabSize );
currentConf = currentTab;
if(currentTab == NULL)
throw std::bad_alloc();
endOfTablePtr = reinterpret_cast<char*>(currentTab) + cellSize*tabSize;
}
} // namespace IsoSpec