C++ EnterCriticalSection简单使用

//1.创建全局互斥量
CRITICAL_SECTION g_cs;

//2.初始化互斥量
InitializeCriticalSection(&g_cs);//必须添加，否则会报错

//3.进入
EnterCriticalSection(&g_cs);

//4.离开
LeaveCriticalSection(&g_cs);

// DefDemo.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"
using namespace std;


CRITICAL_SECTION g_cs;

struct gParam
{
 int m;
 int n;
};

void WINAPI getMax(gParam * cur_Param)
{
 EnterCriticalSection(&g_cs);
 if (cur_Param->m > cur_Param->n)
 {
  cout << "MAX_VALUE:"<< cur_Param->m << endl;
 }
 else
 {
  cout << "MAX_VALUE:"<< cur_Param->n << endl;
 }
 LeaveCriticalSection(&g_cs);
 return;
}


int _tmain(int argc, _TCHAR* argv[])
{
 InitializeCriticalSection(&g_cs);
 gParam * cur_Param = new gParam;
 cur_Param->m = 2;
 cur_Param->n = 5;

 gParam * cur_NexParam = new gParam;
 cur_NexParam->m = 10;
 cur_NexParam->n = 2;
 CreateThread(nullptr,0,(LPTHREAD_START_ROUTINE)getMax,cur_Param,0,0);
 CreateThread(nullptr,0,(LPTHREAD_START_ROUTINE)getMax,cur_NexParam,0,0);
 system("pause");
 delete cur_Param;
 return 0;
}