C++中的RAII机制详解(3)

#include <iostream>
#include <windows.h>
#include <process.h>
 
using namespace std;
 
CRITICAL_SECTION cs;
int gGlobal = 0;
 
class MyLock
{
public:
    MyLock()
    {
        EnterCriticalSection(&cs);
    }
 
    ~MyLock()
    {
        LeaveCriticalSection(&cs);
    }
 
private:
    //MyLock(const MyLock &);
    MyLock operator =(const MyLock &);
};
 
void DoComplex(MyLock lock)
{
}
 
unsigned int __stdcall ThreadFun(PVOID pv) 
{
    MyLock lock;
    int *para = (int *) pv;
 
    // I need the lock to do some complex thing
    DoComplex(lock);
 
    for (int i = 0; i < 10; ++i)
    {
        ++gGlobal;
        cout<< "Thread " <<*para<<endl;
        cout<<gGlobal<<endl;
    }
    return 0;
}
 
int main()
{
    InitializeCriticalSection(&cs);
 
    int thread1, thread2;
    thread1 = 1;
    thread2 = 2;
 
    HANDLE handle[2];
    handle[0] = ( HANDLE )_beginthreadex(NULL , 0, ThreadFun, ( void*)&thread1, 0, NULL );
    handle[1] = ( HANDLE )_beginthreadex(NULL , 0, ThreadFun, ( void*)&thread2, 0, NULL );
    WaitForMultipleObjects(2, handle, TRUE , INFINITE );
    return 0;
}