[Twisted-Python] Twisted communication with embedded C thread

Bob Ippolito bob at redivi.com
Thu Jul 7 14:18:12 EDT 2005

On Jul 7, 2005, at 7:48 AM, Tom Cocagne wrote:

>     I was wondering if anyone has suggestions for a good way to go
> about setting up a message-passing communication channel between one
> or more C threads and a single thread dedicated to running
> Python/Twisted. I already have functional Python bindings accessing
> the contents of the messages (basically C structures) but need some
> way to exchange the messages between the C threads and the Python
> thread.
>     All I really need is a means by which to inform Twisted's reactor
> that a C thread has sent a message.  My original plan was to use a
> pair of pipes (via os.pipe()) to send pointers back and forth but it
> didn't seem to work on Windows . I'm pretty sure this will work fine
> for posix systems but it definitely didn't work on my first attempt
> with Windows (though the problem may have been due to my library
> configuration).
>     I would imagine that something along these lines has been done
> before. Does anyone know of an existing approach or have suggestions
> for a better solution?

Acquire the GIL, call reactor.callFromThread, release the GIL.


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