/*
 * .============.
 * // M A K E / \
 * // C++ DEV / \
 * // E A S Y / \/ \
 * ++ ----------. \/\ .
 * \\ \ \ /\ /
 * \\ \ \ /
 * \\ \ \ /
 * -============'
 *
 * Copyright (c) 2018 Hevake and contributors, all rights reserved.
 *
 * This file is part of cpp-tbox (https://github.com/cpp-main/cpp-tbox)
 * Use of this source code is governed by MIT license that can be found
 * in the LICENSE file in the root of the source tree. All contributing
 * project authors may be found in the CONTRIBUTORS.md file in the root
 * of the source tree.
 */
/**
 * 本示例对 ObjectPool 与 new,delete 的时间耗时进行了统计,然后打印出两者平均耗时
 */
#include <tbox/base/object_pool.hpp>
#include <chrono>
#include <iostream>

struct MyStruct {
 public:
 MyStruct(int i) : i_(i) { }

 int i_;
 char array[100];
};

struct MyBlock {
 char array[1500];
};

int main() {
 tbox::ObjectPool<int> op1;
 tbox::ObjectPool<MyStruct> op2;
 tbox::ObjectPool<MyBlock> op3;

 std::chrono::nanoseconds acc_new = std::chrono::nanoseconds::zero();
 std::chrono::nanoseconds acc_op = std::chrono::nanoseconds::zero();

 std::chrono::steady_clock::time_point tp;
 constexpr int count = 100000;
 for (int i = 0; i < count; ++i) {
 tp = std::chrono::steady_clock::now();
 auto p01 = new MyStruct(i);
 auto p02 = new int(i);
 auto p03 = new MyBlock;
 acc_new += std::chrono::steady_clock::now() - tp;

 tp = std::chrono::steady_clock::now();
 auto p11 = op1.alloc(i);
 auto p12 = op2.alloc(i);
 auto p13 = op3.alloc();
 acc_op += std::chrono::steady_clock::now() - tp;

 tp = std::chrono::steady_clock::now();
 delete p01;
 delete p02;
 delete p03;
 acc_new += std::chrono::steady_clock::now() - tp;

 tp = std::chrono::steady_clock::now();
 op1.free(p11);
 op2.free(p12);
 op3.free(p13);
 acc_op += std::chrono::steady_clock::now() - tp;
 }

 std::cout << "new_acc: " << acc_new.count() / count / 3 << " ns" << std::endl;
 std::cout << "op_acc : " << acc_op.count() / count / 3 << " ns" << std::endl;

 return 0;
}