memory_monitor.hpp

/*
 * VecMem project, part of the ACTS project (R&D line)
 *
 * (c) 2021 CERN for the benefit of the ACTS project
 *
 * Mozilla Public License Version 2.0
 */
 
#pragma once
 
// Local include(s).
#include "vecmem/memory/instrumenting_memory_resource.hpp"
#include "vecmem/vecmem_core_export.hpp"
 
// System include(s).
#include <cstddef>
 
namespace vecmem {
 
class VECMEM_CORE_EXPORT memory_monitor {
 
public:
    memory_monitor(instrumenting_memory_resource& resource);
 
    std::size_t total_allocation() const;
    std::size_t outstanding_allocation() const;
    std::size_t average_allocation() const;
    std::size_t maximal_allocation() const;
 
private:
 
    void post_allocate(std::size_t size, std::size_t align, void* ptr);
    void pre_deallocate(void* ptr, std::size_t size, std::size_t align);
 
 
    std::size_t m_n_alloc = 0;
    std::size_t m_total_alloc = 0;
    std::size_t m_outstanding_alloc = 0;
    std::size_t m_maximum_alloc = 0;
 
};  // class memory_monitor
 
}  // namespace vecmem