util/memory/alloc.h


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#pragma once

#include <memory> 
 
template <class Allocator, class T> 
using TReboundAllocator = typename std::allocator_traits<Allocator>::template rebind_alloc<T>;
 
class IAllocator { 
public: 
    struct TBlock { 
        void* Data; 
        size_t Len; 
    }; 
 
    virtual ~IAllocator() = default;
 
    virtual TBlock Allocate(size_t len) = 0; 
    virtual void Release(const TBlock& block) = 0; 
}; 
 
class TDefaultAllocator: public IAllocator { 
public: 
    TBlock Allocate(size_t len) override;
    void Release(const TBlock& block) override;
 
    static IAllocator* Instance() noexcept;
};