Re: Non-blocking publishing in Python

Haven't heard anything back from the list regarding this question. If it =
is
because the question was too bone-headed, then there is no remedy. Otherw=
ise,
the following information might be useful to someone else getting started=
.

There are two python client libraries: pubsublib.py and libkn/libkn.py.
According to the source, pubsublib.py is a non-blocking implementation, w=
hile
libkn.py is blocking. The examples in apps are built off of pubsublib, so=
 they
should be non-blocking.

This seems to be true when running as a standalone script, but what about=
 when I
want to embed? Is the logging package being used to help the debugging pr=
ocess
or are people using pdb?

Also, I read somewhere that the client is supposed to be using Twisted in=
 the
near future. Is this still the case, and if so, what's the progress on it=
?

Thanks,
Brian


Quoting [email protected]:

> Hello:
>=20
> I'm trying to use the apps/publish.py module as a starting point for wr=
iting
> my
> own simple publishing lib to work with repubsub. The script runs fine o=
n its
> own, but whenever I try to embed it in other code, I seem to get blocki=
ng
> issues and the CPU load spikes.
>=20
> Inside the apps/publish.py script, I looked at the following method cal=
ls:
>=20
>   asyncore.poll()
>   scheduler.timeout()
>   scheduler.run()
>=20
> Now Python's asyncore does not have documentation on the poll function,
> although
> in my interpreter, I do see a reference for poll. The two scheduler fun=
ction
> calls both pass in their implementations. If I comment out that loop, m=
y
> messages don't get published. So what's going on here?=20
>=20
> Ideally, I'd like to be able to use Twisted's Deferred mechanism to han=
dle
> the
> blocking issue, but I'm unsure the best way to approach it without heav=
ily
> modifying the code base.
>=20
> Any help is greatly appreciated.
>=20
> Thanks,
> Brian
>=20
> --=20
>   =3D=3D=3D=3D
> brian lee dae yung
> biomimetic art and research
>   mux space . com
>=20
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>=20
>=20
>=20
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>=20


--=20
  =3D=3D=3D=3D
brian lee dae yung
biomimetic art and research
  mux space . com

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