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// SPDX-License-Identifier: BSD-2-Clause
/* Copyright (C) 2017 - 2021 Intel Corporation. */
#pragma once
#include "memory_manager.h"
#include <random>
#include <vector>
class RandomSizesAllocator
{
private:
std::vector<MemoryManager> allocated_memory;
memkind_t kind;
std::default_random_engine generator;
std::uniform_int_distribution<int> memory_distribution;
size_t get_random_size()
{
return memory_distribution(generator);
}
public:
RandomSizesAllocator(memkind_t kind, size_t min_size, size_t max_size,
int max_allocations_number)
: kind(kind), memory_distribution(min_size, max_size)
{
allocated_memory.reserve(max_allocations_number);
}
size_t malloc_random_memory()
{
size_t size = get_random_size();
allocated_memory.emplace_back(kind, size);
return size;
}
size_t free_random_memory()
{
if (empty())
return 0;
std::uniform_int_distribution<int> distribution(
0, allocated_memory.size() - 1);
int random_index = distribution(generator);
auto it = std::begin(allocated_memory) + random_index;
size_t size = it->size();
allocated_memory.erase(it);
return size;
}
bool empty()
{
return allocated_memory.empty();
}
};
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