On Wed, Sep 9, 2009 at 11:36 AM, Thomas Woutersthomas@python.org wrote:
On Wed, Sep 9, 2009 at 20:19, Gregory P. Smith email@example.com wrote:
Take a look at http://code.google.com/p/python-atfork/ which I created to address the general fork+threading with locks held causing deadlocks issue with many standard library modules. Currently it only patches the logging module but I intend to support others. I want to get an atfork mechanism into 2.7/3.2 along with every lock in the standard library making proper use of it.
See also http://bugs.python.org/issue6721
I make no attempt to deal with C-level locks, only those acquired from python. It doesn't use pthread_atfork but instead models its behavior after that and wraps os.fork and os.forkpty so that they call the registered atfork methods as appropriate.
Well, sure, the *Python code* side of the problem is fixable, thanks to Python being so awesome ;-P I'm strictly thinking of applications embedding Python (or even extending it and calling into code that doesn't consider Python.) Your python-atfork project looks like a terribly good idea, but it won't fix the embedding/extending issues (nor is it intended to, right?)
yeah I decided to only fix what could obviously be fixed and was causing me pain at the moment. ;)