Boost库中的spinlock机制是一种非常高效的锁机制,它通过忙等待自旋的方式提高了多线程程序的运行效率。本文将介绍一个测试程序,用于验证spinlock的正确性和性能。
下面是测试程序的源代码:
#include <boost/thread.hpp>
#include <iostream>
#include <vector>
#include <ctime>
#include <cstdlib>
const int MAX_COUNT = 100000000;
const int THREAD_COUNT = 4;
boost::detail::spinlock g_spinlock;
void worker_thread() {
std::srand(std::time(nullptr));
for (int i = 0; i < MAX_COUNT; ++i) {
boost::detail::spinlock::scoped_lock lock(g_spinlock);
int n = std::rand();
}
}
int main() {
std::vector<boost::thread> threads;
for (int i = 0; i < THREAD_COUNT; ++i) {
threads.emplace_back(worke