#include<iostream>#include<atomic>#include<thread>#include<vector>std::atomic_flaglock=ATOMIC_FLAG_INIT;// 初始化 atomic_flagvoidtask(intid){// 自旋等待锁while(lock.test_and_set(std::memory_order_acquire)){// 忙等待}// 临界区std::cout<<"Thread "<<id<<" is in the critical section....
vector<int> vec; void add_vector(int range, unsigned int seed){ srand(seed); for(int i = 0 ; i < range; i++){ vec.push_back(rand()); } } int main(){ vec.reserve(100); thread t1 = thread(add_vector, 1000, 2); thread t2 = thread(add_vector, 1000, 1); t1.join(); ...
std::atomic、std::async深入研究 1.从上节课的一个demo说起。 #include<iostream>#include<future>#include<vector>#include<atomic>#include<thread>usingnamespacestd;std::atomic<int>g_mycount(0);voidmythread(){for(inti =0; i <1000000; i++) {//g_mycount++; //ok//g_mycount+=1; //ok...
#include <iostream> #include <atomic> #include <thread> #include <vector> std::vector<int> data; std::atomic<int> flag(0); void Producer() { data.push_back(42); flag.store(1, std::memory_order_release); return; } void Broker() { int expected = 1; while (!flag.compare_exchange...
#include <atomic>#include <thread>#include <vector>std::atomic<int> counter(0); // 初始化一个原子整数void increment() {for (int i = 0; i < 1000; ++i) {++counter; // 原子操作}}int main() {std::vector<std::thread> threads;for (int i = 0; i < 10; ++i) {threads.push_...
#include <atomic> // std::atomic #include <thread> // std::thread #include <vector> // std::vectorstd::atomic<bool> ready (false); std::atomic<bool> winner (false);void count1m (int id) { while (!ready) {} // wait for the ready signal ...
#include<iostream>#include<thread>#include<vector>#include<atomic>std::atomic<int>counter(0);// 定义一个原子整数计数器voidincrement(){for(int i=0;i<1000;++i){++counter;// 原子增加操作}}intmain(){std::vector<std::thread>threads;for(int i=0;i<10;++i){threads.push_back(std::thread...
#include <iostream> #include <atomic> #include <thread> #include <vector> std::vector<int> data; std::atomic<int> flag(0); void Producer() { data.push_back(42); flag.store(1, std::memory_order_release); return; } void Broker() { int expected = 1; while (!flag.compare_exchange...
问调整为所有原子bools赋值true的std::vector<std::atomic_bool>大小EN版权声明：本文内容由互联网用户...
std::vector<int>data; std::atomic<bool> data_read(false);voidreader_thread() {while(!data_read.load()) { std::this_thread::sleep_for(std::chrono::microseconds(1)); } std::cout<<"The answer="<< data[0] << std::endl;//1}voidwriter_thread() ...