On Jul 23, 2:37 am, Nobody <nob...@nowhere.com> wrote: > On Wed, 22 Jul 2009 15:17:52 -0700, Carl Banks wrote: > > So do all these OSes have some kind of __mega_unifying_poll system > > call that works for anything that might possibly block, that you can > > exploit from a user process? > > Threads ;)
Yeah, well that was kind of my point, you'd need native threads to do some of this. Jean-Paul Calderone seemed to be suggesting that it was possible to wait for events on sockets, pipes, and IPC semaphores at the same. I pointed out that it isn't possible with well-known I/O polling calls (like select), so there must be some other way, and I was wondering what it was. He's a proponent of Twisted, which is a major async framework, and I'd have to figure that once or twice they've encounted issues like "how to poll both a semaphore and a socket at the same time", so maybe they've found a good solution to it. Carl Banks -- http://mail.python.org/mailman/listinfo/python-list
