Op 2005-03-30, Paul Rubin schreef <http>: >> > I think the best bet for the short term is handling it at the C level, >> > with sigalarm. Another way is to have chained sigalarm handlers in >> > the main thread. >> >> Possible, but I don't have the time to investigate that possibility now. > > Actually there's a simple and obvious approach: Linux and Windows both > already implement semaphore objects with timeouts (see "man semop" > under Linux). Other modern Unixes probably also have them. So I'd > think it would be straightforward to just make a C module that wraps > these semaphores with the C API.
I'm not sure that this would be an acceptable approach. I did the man semop and it indicates this is part of system V IPC. This makes me fear that semaphores will use file descriptors or other resources that are only available in a limited amount. Not usefull if you are talking about thousands of threads. -- Antoon Pardon -- http://mail.python.org/mailman/listinfo/python-list
