Program Listing for File SizeLimiter.cpp¶
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//////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2016-20, Lawrence Livermore National Security, LLC and Umpire
// project contributors. See the COPYRIGHT file for details.
//
// SPDX-License-Identifier: (MIT)
//////////////////////////////////////////////////////////////////////////////
#include "umpire/strategy/SizeLimiter.hpp"
#include "umpire/ResourceManager.hpp"
namespace umpire {
namespace strategy {
SizeLimiter::SizeLimiter(const std::string& name, int id, Allocator allocator,
std::size_t size_limit)
: AllocationStrategy(name, id),
m_allocator(allocator.getAllocationStrategy()),
m_size_limit(size_limit),
m_total_size(0)
{
}
void* SizeLimiter::allocate(std::size_t bytes)
{
m_total_size += bytes;
if (m_total_size > m_size_limit) {
m_total_size -= bytes;
UMPIRE_ERROR("Size limit exceeded.");
}
return m_allocator->allocate(bytes);
}
void SizeLimiter::deallocate(void* ptr)
{
m_total_size -= ResourceManager::getInstance().getSize(ptr);
m_allocator->deallocate(ptr);
}
Platform SizeLimiter::getPlatform() noexcept
{
return m_allocator->getPlatform();
}
MemoryResourceTraits SizeLimiter::getTraits() const noexcept
{
return m_allocator->getTraits();
}
} // end of namespace strategy
} // end of namespace umpire