[Twisted-Python] Perspective Broker with blocking, non-thread-safe C api?
Phil Mayers
p.mayers at imperial.ac.uk
Wed Jul 11 03:43:20 MDT 2007
On Wed, 2007-07-11 at 00:34 +0000, s. w. wrote:
> I'd like to use Perspective Broker to serve a set of objects remotely.
> However, these objects wrap a non-thread-safe, blocking C api. I'm new to
> Twisted, but I believe I understand correctly that the blocking C api needs
> to be accessed via threads in Twisted.
>
> Given this, the only way I can think to use Perspective Broker would be to
> use a special PBServerFactory/Protocol that limited the server to one
> connected client. For the use I would be putting the server to, this is
> maybe not as horrible as it sounds, but it is probably as ugly as it sounds.
>
> I'm hoping there's something in PB that I haven't come across that can solve
> this problem in a more elegant way. Any help or pointers would be greatly
> appreciated.
It's not specific to PB - this applied to all of Twisted, and all of
Twisted has the same solution.
See "deferToThread" for examples of ways to call blocking APIs inside a
thread, and when the call returns the deferred will fire.
>
> Thanks,
> Steve
>
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