lockFunctionDemo

#include<stdio.h>
#include<stdlib.h>
#include<process.h>
#include<windows.h>

int g_nCount1 = 0,g_nCount2 = 0;
bool g_bThread = true;
UINT __stdcall ThreadProc(LPVOID);
int main(int argc,char* argv[])
{
    HANDLE h[2];
    unsigned m_uThreadId;
    h[0] = (HANDLE)::_beginthreadex(NULL,0,ThreadProc,NULL,0,&m_uThreadId);
    h[1] = (HANDLE)::_beginthreadex(NULL,0,ThreadProc,NULL,0,&m_uThreadId);
    Sleep(1000);
    g_bThread = false;
    ::WaitForMultipleObjects(2,h,true,INFINITE);
    printf("g_nCount1: %d   g_nCount2: %d\n",g_nCount1,g_nCount2);
    ::CloseHandle(h[0]);
    ::CloseHandle(h[1]);
    
    system("pause");
    return 0;
}
UINT __stdcall ThreadProc(LPVOID lpParam)
{
    while(g_bThread)
    {
        InterlockedIncrement((long*)&g_nCount1);
        InterlockedDecrement((long*)&g_nCount2);
    }
    return 0;
}