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igl/external/embree/kernels/common/alloc.cpp
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// ======================================================================== //
// Copyright 2009-2014 Intel Corporation //
// //
// Licensed under the Apache License, Version 2.0 (the "License"); //
// you may not use this file except in compliance with the License. //
// You may obtain a copy of the License at //
// //
// http://www.apache.org/licenses/LICENSE-2.0 //
// //
// Unless required by applicable law or agreed to in writing, software //
// distributed under the License is distributed on an "AS IS" BASIS, //
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. //
// See the License for the specific language governing permissions and //
// limitations under the License. //
// ======================================================================== //
#include "alloc.h"
namespace embree
{
Alloc Alloc::global;
Alloc::Alloc () {
blocks.reserve(1024);
}
Alloc::~Alloc () {
}
size_t Alloc::size() const {
return size_t(blockSize)*blocks.size();
}
void Alloc::clear()
{
Lock<MutexSys> lock(mutex);
for (size_t i=0; i<blocks.size(); i++)
alignedFree(blocks[i]);
blocks.clear();
}
void* Alloc::malloc()
{
Lock<MutexSys> lock(mutex);
if (blocks.size()) {
void* ptr = blocks.back();
blocks.pop_back();
return ptr;
}
return alignedMalloc(blockSize,64);
}
void Alloc::free(void* ptr)
{
Lock<MutexSys> lock(mutex);
blocks.push_back(ptr);
}
}