#include <iostream> #include <windows.h> using namespace std;CRITICAL_SECTION cs;// LockCount 它被初始化為數(shù)值 -1,此數(shù)值等于或大于 0 時，表示此臨界區(qū)被占用;等待獲得臨界區(qū)的線程數(shù)：LockCount - (RecursionCount -1) // RecursionCount 此字段包含所有者線程已經(jīng)獲得該臨界區(qū)的次數(shù) // OwningThread 此字段包含當前占用此臨界區(qū)的線程的線程標識符,此線程 ID 與GetCurrentThreadId 所返回的 ID 相同 DWORD WINAPI ThreadProc1(LPVOID lpParameter) {for (int x = 0; x < 1000; x++){EnterCriticalSection(&cs);Sleep(1000);printf("11111:%x %x %x\n", cs.LockCount, cs.RecursionCount, cs.OwningThread);LeaveCriticalSection(&cs);}return 0; }DWORD WINAPI ThreadProc2(LPVOID lpParameter) {for (int x = 0; x < 1000; x++){EnterCriticalSection(&cs);Sleep(1000);printf("22222:%x %x %x\n", cs.LockCount, cs.RecursionCount, cs.OwningThread);LeaveCriticalSection(&cs);}return 0; }DWORD WINAPI ThreadProc3(LPVOID lpParameter) {for (int x = 0; x < 1000; x++){EnterCriticalSection(&cs);Sleep(1000);printf("33333:%x %x %x\n", cs.LockCount, cs.RecursionCount, cs.OwningThread);LeaveCriticalSection(&cs);}return 0; }DWORD WINAPI ThreadProc4(LPVOID lpParameter) {for (int x = 0; x < 1000; x++){EnterCriticalSection(&cs);Sleep(1000);printf("44444:%x %x %x\n", cs.LockCount, cs.RecursionCount, cs.OwningThread);LeaveCriticalSection(&cs);}return 0; }int main() {// 初始化臨界區(qū)InitializeCriticalSection(&cs);// printf("%x %x %x", cs.LockCount, cs.RecursionCount, cs.OwningThread);// 創(chuàng)建一個新的線程HANDLE hTread1 = CreateThread(0, 0, ThreadProc1, 0, 0, 0);// 創(chuàng)建一個新的線程HANDLE hTread2 = CreateThread(0, 0, ThreadProc2, 0, 0, 0);// 創(chuàng)建一個新的線程HANDLE hTread3 = CreateThread(0, 0, ThreadProc3, 0, 0, 0);// 創(chuàng)建一個新的線程HANDLE hTread4 = CreateThread(0, 0, ThreadProc4, 0, 0, 0);// 如果不在其它的地方引用它就關閉句柄 ::CloseHandle(hTread1);::CloseHandle(hTread2);::CloseHandle(hTread3);::CloseHandle(hTread4);// 銷毀臨界區(qū)// DeleteCriticalSection(&cs); getchar();return 0; }

?

轉載于:https://www.cnblogs.com/duxie/p/11110231.html

總結

以上是生活随笔為你收集整理的C++线程同步之临界区的全部內(nèi)容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網(wǎng)站內(nèi)容還不錯，歡迎將生活随笔推薦給好友。