有点疑惑，请大家帮忙
我双核运行下面程序，有时候这样的结果Thread1 is running
Thread1 is running
Thread2 is running
其中“Thread1 is running”出现2次，是怎么回事？？但这种情况少见，运行多次偶尔会有这样的情况！！
程序代码：#include <windows.h>
#include <iostream.h>
DWORD WINAPI Fun1Proc(LPVOID lpParameter);
DWORD WINAPI Fun2Proc(LPVOID lpParameter);
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,TRUE,"tickets");
if(hMutex)
{
if(ERROR_ALREADY_EXISTS==GetLastError())
{
cout<<"only instance can run!"<<endl;
return;
}
}
WaitForSingleObject(hMutex,INFINITE);
ReleaseMutex(hMutex);
ReleaseMutex(hMutex);
Sleep(4000);
}
DWORD WINAPI Fun1Proc(
LPVOID lpParameter // thread data
)
{
WaitForSingleObject(hMutex,INFINITE);
cout<<"thread1 is running"<<endl;
return 0;
}
DWORD WINAPI Fun2Proc(
LPVOID lpParameter // thread data
)
{
WaitForSingleObject(hMutex,INFINITE);
cout<<"thread2 is running"<<endl;
return 0;
}
