Dan> In article <9504071935.AA14413=guido@voorn.cwi.nl>
Dan> Guido.van.Rossum@cwi.nl writes: Python threads are now
Dan> supported on Solaris, IRIX, Windows NT, and probably OS/2
Dan> (and anything supporting pthreads). What support is missing
Dan> in your eyes?
Dan> Preemptive thread switching, even when running C callbacks.
Dan> This requires a lot of re-engineering. In fact, what you get
Dan> is more like Modula-3.
Dan> But right now, there are untold places in the python runtime
Dan> and libraries that can block indefinitely, no?
Dan> For example: can I do two http transfers simultaneously using
Dan> the httplib module? i.e. is the socket module
Dan> thread-friendly?
Yes, socketmodule is thread friendly. In fact using the FTP module I
can run up to about 8 transfers at once before I start to see
degradation ( on WinNT, on OS/2 the thread count is lower, say 5
transfers). If you look in the 'standard' distribution most of the C
code has been thread friendlied. Unfortuantly I cona't comment
directly on the http module, but the underlying socket code is OK.
Dan> Dan -- Daniel W. Connolly "We believe in the
Dan> interconnectedness of all things" Research Technical Staff,
Dan> MIT/W3C <connolly@w3.org>
Dan> http://www.w3.org/hypertext/WWW/People/Connolly
--
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Chris Vale | "Outside a dog, a book is mans best friend
cvale@netcom.com | Inside a dog, it's too dark to read"
| Groucho Marx
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