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This commit is contained in:
Siarhei Fedartsou 2024-07-11 20:42:47 +02:00
parent 18b3c5f8ed
commit 9ef1911eae
1 changed files with 17 additions and 11 deletions
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28
include/util/pool_allocator.hpp
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@ -22,9 +22,13 @@ template <typename T, size_t MinItemsInBlock = 1024>
class MemoryManager
{
public:
static MemoryManager &instance()
static std::shared_ptr<MemoryManager> instance()
{
static thread_local MemoryManager instance;
static thread_local std::shared_ptr<MemoryManager> instance;
if (!instance)
{
instance = std::shared_ptr<MemoryManager>(new MemoryManager());
}
return instance;
}
@ -58,11 +62,11 @@ public:
~MemoryManager()
{
// std::cerr << "~MemoryManager()" << std::endl;
// for (auto block : blocks_)
// {
// std::free(block);
// }
// std::cerr << "~MemoryManager()" << std::endl;
for (auto block : blocks_)
{
std::free(block);
}
}
private:
MemoryManager() = default;
@ -105,10 +109,10 @@ class PoolAllocator
public:
using value_type = T;
PoolAllocator() noexcept = default;
PoolAllocator() noexcept : pool(MemoryManager<T, MinItemsInBlock>::instance()) {};
template <typename U>
PoolAllocator(const PoolAllocator<U> &) noexcept {}
PoolAllocator(const PoolAllocator<U> &) noexcept : pool(MemoryManager<T, MinItemsInBlock>::instance()) {}
template <typename U>
struct rebind
@ -118,12 +122,12 @@ public:
T *allocate(std::size_t n)
{
return MemoryManager<T, MinItemsInBlock>::instance().allocate(n);
return pool->allocate(n);
}
void deallocate(T *p, std::size_t n) noexcept
{
MemoryManager<T, MinItemsInBlock>::instance().deallocate(p, n);
pool->deallocate(p, n);
}
~PoolAllocator() = default;
@ -134,6 +138,8 @@ public:
PoolAllocator &operator=(PoolAllocator &&) noexcept = default;
private:
std::shared_ptr<MemoryManager<T, MinItemsInBlock>> pool;
static size_t get_next_power_of_two_exponent(size_t n)
{
BOOST_ASSERT(n > 0);