Re: Problem with cothread-1-12 on MacOSX (Leopard)

[Juan Carlos Guzman <Juan.Guzman@csiro.au>]

Hi Michael,

On Tue, 10 Mar 2009, Michael Abbott wrote:

On Tue, 10 Mar 2009, Abbott, MG (Michael) wrote:

stdin, ... is a device and therefore doesn't work with darwin's

poll. In this case poll just spews POLLNVAL

Ok, so poll() on Darwin is busted.

Looks like I'll have to code up an emulation of poll() using select() and

Juan,

Can you try the attached patch and let me know how things behave.

This is a quick and dirty hack, if it's ok I'll work up a proper release.

The problem with using select is that its error handling is lousy: if any
file handle is invalid I have to back out and individually call select()
on each handle, one by one, to find the offending ones.

It works!. I just did quick check only with caget() and works fine using the python interpreter. All my previous attempts were also done using the interactive interpreter. I tested the camonitor.py script in tests area and it also works under Mac.

Thanks a lot for your quick fix and response.

Cheers,

  Juan.

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Juan Carlos Guzman

Software Engineer

CSIRO Australia Telescope National Facility (ATNF)

P.O.Box 76, Epping NSW 1710, Australia

Phone: +61 2 9372 4457

Fax: +61 2 9372 4310

Email: Juan.Guzman@csiro.au