我想了解如何在C++中工作內存障礙。 例如，我使用的std ::原子在這種情況下： #include <iostream>
#include <atomic>
int main()
{
std::atomic<int> a;
int n = load();//returns 1 or other value written by other thread
a.
讓我們看看下面這段代碼在Java中 int x = 0;
int who = 1
Thread #1:
(1) x++;
(2) who = 2;
Thread #2
while(who == 1);
x++;
print x; (the value should be equal to 2 but, perhaps, it is not*
的我的問題是給帖子： https://shipilev.net/blog/2014/safe-public-construction/ public class UnsafeDCLFactory {
private Singleton instance;
public Singleton get() {
if (instance == null) { // read
所以我有一個簡單的cow_ptr。它看起來是這樣的： template<class T, class Base=std::shared_ptr<T const>>
struct cow_ptr:private Base{
using Base::operator*;
using Base::operator->;
using Base::operator bool;
在一篇文章中有關A scalable reader/writer scheme with optimistic retry有一個代碼示例： using System;
using System.Threading;
public class OptimisticSynchronizer
{
private volatile int m_version1;
private
我書面方式這篇文章中的連接上下文的JIT產生的x86輸出到Deep understanding of volatile in Java public class Main {
private int x;
private volatile int g;
public void actor1(){
x = 1;
g = 1;
}