[Python-Dev] epoll implementation

["Martin v. Löwis"]

Ross Cohen wrote:
> The first thing any user of the poll interface does with the file descriptor
> is map it to some state object. That's where the lookup can be saved, the
> object can just be handed back directly. Problem being that when the fd is
> unregistered, we won't get back the PyObject pointer so can't decrement
> the refcount, has to be stored and looked up manually.

Ah. That would be an interface change; I would not do that. The lookup
is usually-constant and very fast. It is complexity that grows with the
number of file descriptors that these APIs worry about.

Regards,
Martin