VS2010多线程进程互斥

VS2010多线程进程互斥
#include <windows.h>
#include <iostream>
#include <tchar.h>
using namespace std;
DWORD WINAPI Fun1Proc(
LPVOID lpParameter // thread data
);
DWORD WINAPI Fun2Proc(
LPVOID lpParameter // thread data
);
int index=0;
int tickets=100;
HANDLE hMutex;
void main()
{
HANDLE hThread1;
HANDLE hThread2;
hThread1=CreateThread(NULL,0,Fun1Proc,NULL,0,NULL);
hThread2=CreateThread(NULL,0,Fun2Proc,NULL,0,NULL);
CloseHandle(hThread1);
CloseHandle(hThread2);
hMutex=CreateMutex(NULL,false,_T("tickets"));//第二个变量为true时当前线程拥有互斥对象的所有权，否则不拥有
if(hMutex)
{
if(ERROR_ALREADY_EXISTS==GetLastError())
{
cout<<"only instance can run!"<<endl;
return;
}
}
/*WaitForSingleObject(hMutex,INFINITE); ReleaseMutex(hMutex);
ReleaseMutex(hMutex);*/
Sleep(4000);//主线程放弃执行权4s
}
DWORD WINAPI Fun1Proc(
LPVOID lpParameter // thread data
)
{
while(TRUE)//线程1,一直执行
{
WaitForSingleObject(hMutex,INFINITE);//请求互斥对象所有权if(tickets>0)
{
//Sleep(1);
cout<<"thread1 sell ticket : "<<tickets--<<endl;
}
else
break;
ReleaseMutex(hMutex););//释放互斥对象所有权
}
return 0;
}
DWORD WINAPI Fun2Proc(
LPVOID lpParameter // thread data
)
{
while(TRUE)
{
//ReleaseMutex(hMutex);
WaitForSingleObject(hMutex,INFINITE);
if(tickets>0)
{
//Sleep(1);
cout<<"thread2 sell ticket : "<<tickets--<<endl;
}
else
break;
ReleaseMutex(hMutex);
}
return 0;
}
说明，在一个子线程结束时，该线程所对应的请求的互斥对象都会被自动释放，且请求的互斥对象句柄也被置为0。