thread conditional code

[Steve Purcell]

Robin Becker wrote:
> It seems that using a lock requires the threading overhead; so is there
> any way to avoid locking when threading hasn't been started? I guess I
> would like to know if thread.c's initialized variable is true / false.
> 
> That way I could conditionally lock access to contentious variables and
> avoid thread overhead when not needed.

But would such conditional locking code be thread-safe?

    if threading_started:
         lock()
    # threading could start here
    code_that_should_run_safely()

I would expect the OS' threading libraries to take care of minimising
threading overhead in the case where only one thread is running.

-Steve

-- 
Steve Purcell, Pythangelist
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