How should i track Objs in use, C#

Question

I have a manager that holds connections to the server. I keep the connection alive and i want my threads to request connections when it needs. My question is

How do i have track objects automatically? I would like it to work similar to scoped pointer. I request a connection, then when my obj goes out of scope it tells the manager it is not in use anymore. I wont be passing it around as a pointer. I'll be doing something like

{
Obj = Man.GetObj();
//some loop
    Obj.DoSomething()
} //auto tell man that obj is no longer in use

Answer 1

You could create your own wrapper object and implements IDisposable . In the Dispose() method, signal the manager that you're no longer in use. You can then have your statement like...

using(Obj obj = Man.GetObj())
{
    Obj.DoSomething();
}

The using block automatically calls the Dispose() method at the close of the scope.

Answer 2

Look into the using statement.

MSDN

Answer 3

Implement the IDisposable interface, and use the keyword 关键字

class MyClass : IDisposable
{
    void Dispose()
    {}
}

using(MyClass obj = Man.GetObj())
{
    obj.DoSomething();
}// obj.Dispose() will be called when the object goes out of scope.