[Python-Dev] Add function to signal module for getting main thread id

Antoine Pitrou solipsis at pitrou.net
Fri Aug 30 11:34:43 CEST 2013

Le Fri, 30 Aug 2013 12:24:07 +0300,
Andrew Svetlov <andrew.svetlov at gmail.com> a écrit :

> Main thread is slightly different from others.
> Signals can be subscribed from main thread only.
> Tulip has special logic for main thread.
> In application code we can explicitly know which thread is executed,
> main or not.
> But from library it's not easy.
> Tulip uses check like
>     threading.current_thread().name == 'MainThread'
> This approach has a problem: thread name is writable attribute and can
> be changed by user code.

Really? Please at least use:

> My proposition is to add function like get_mainthread_id() -> int
> which return ident for main thread (I know function name is not
> perfect, please guess better one).
> Signal module already has required data as internal variable
> static long main_thread;
> I just guess to expose this value to python.
> Thoughts?

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