#include <cassert> #include <string> using namespace std; atomic<string*>ptr; atomic<int> data; void Producer() { string*p=new string("Hello"); data.store(42,memory_order_relaxed); ptr.store(p,memory_order_release); } void Consumer() { string*p2; while(!(p2=ptr.load(memory_order...
但是缺乏统一的标准,缺乏线程感知的内存模型(thread-aware memory model), 意味着想要借助于处理器硬件知识极限压榨程序性能,和想要编写跨平台的多线程程序,都困难不小。 C++11 标准中,相当大的一个变化就是引入了多线程的支持,这使得用C/C++进行线程编程时,不必依赖第三方库和标准。 而C++11对多线程的支持,最为...
store(str, std::memory_order_release); return; } void Consumer() { std::string* str; while (!(str = atom_str.load(std::memory_order_acquire))); if (flag != 1) { // 绝不会执行 std::cout << "Error..." << std::endl; } else { std::cout << str->c_str() << std:...
AI代码解释 publicclassT01_ReentrantLock1{synchronizedvoidm1(){for(int i=;i<;i++){try{TimeUnit.SECONDS.sleep();}catch(InterruptedException e){e.printStackTrace();}System.out.println(i);if(i==)m2();}}synchronizedvoidm2(){System.out.println("m2 ...");}publicstaticvoidmain(String[]args...
A6 c;voidf();//普通成员函数是允许的};structA8 {intx;//对静态成员无要求(std::string是non-trivial的)staticstd::stringy; };structA9 {//非用户自定义A9() =default;//普通构造函数是可以的(前提是我们已经有了非定义的缺省构造函数)A9(intx) : x(x) {};intx; ...
std::atomic<std::string*> ptr;intdata;voidproducer(){ std::string* p =newstd::string("Hello"); data =42; ptr.store(p, std::memory_order_release); }voidconsumer(){ std::string* p2;while(!(p2 = ptr.load(std::memory_order_acquire))) ...
publicstaticvoidmain(String[]args) { for(inti=0;i<10;i++) { Threadthread=newThread(()->{ for(intj=0;j<10000;j++) { // 原子自增 CAS sum.incrementAndGet(); //TODO } }); thread.start(); } try{ Thread.sleep(3000); }catch(InterruptedExceptione) { ...
NodeName string Addr string Count int32 } func loadNewConfig() Config { return Config{ NodeName: "北京", Addr: "10.77.95.27", Count: rand.Int31(), } } func main() { var config atomic.Value config.Store(loadNewConfig()) var cond = sync.NewCond(&sync.Mutex{}) ...
public class AtomicIntegerArrayDemo { static AtomicIntegerArray arr = new AtomicIntegerArray(10); public static void main(String[] args) throws InterruptedException { Thread[] ts = new Thread[10]; for (int k = 0; k < 10; k++) { ts[k] = new Thread(new AddThread()); ...
<string> <string_view> <strstream> <system_error> <thread> <tuple> <type_traits> <typeindex> <typeinfo> <unordered_map> <unordered_set> <utility> <valarray> <variant> <vector> C++ Standard Library overview C++ Standard Library containers Iterators Algorithms Allocators Function objects in the...