线程同步:CriticalSection关键区域

#include <Windows.h>#include <iostream>using namespace std;DWORD WINAPI Func1Proc( LPVOID lpParameter );DWORD WINAPI Func2Proc( LPVOID lpParameter );int tickets = 100;CRITICAL_SECTION g_cs;int main(){HANDLE hThread1;HANDLE hThread2;hThread1 = CreateThread(NULL, 0, Func1Proc, NULL, 0, NULL);hThread2 = CreateThread(NULL, 0, Func2Proc, NULL, 0, NULL);CloseHandle(hThread1);CloseHandle(hThread2);InitializeCriticalSection(&g_cs);Sleep(2000);DeleteCriticalSection(&g_cs);return 0;}DWORD WINAPI Func1Proc( LPVOID lpParameter ){while(TRUE){EnterCriticalSection(&g_cs);if (tickets > 0){Sleep(10);cout << "thread1 sell ticket : " << tickets-- << endl;}elsebreak;LeaveCriticalSection(&g_cs);}return 0;}DWORD WINAPI Func2Proc( LPVOID lpParameter ){while(TRUE){EnterCriticalSection(&g_cs);if (tickets > 0){Sleep(10);cout << "thread2 sell ticket : " << tickets-- << endl;}elsebreak;LeaveCriticalSection(&g_cs);}return 0;}