[Twisted-Python] Sending large files over network with perspective broker

[Gabriele Lanaro]

In which sense it's invalid? I don't know how the gtk reactor works, I just
guessed that the event loop never reaches the gui events. My idea was to
force the processing of these events before spawning another deferred, it's
just a workaround, the real problem is  the fact that the server and the
client resides in  the same loop (for testing).

Which can be the reason of the mainloop "block"?

2010/5/23 <exarkun at twistedmatrix.com>

> On 12:21 pm, gabriele.lanaro at gmail.com wrote:
> >Finally I managed to solve myself this obscure bug. I put the
> >reactor.iterate() call before spawning new callbacks, in this way I
> >force
> >the mainloop to complete the cycle. The pseudocode would be modified in
> >this
> >way:
> >
> >Client()
> >    proceed_sending():
> >
> >          chunk_tot = CHUNK_TOT
> >          chunk_no = 0
> >
> >          def send(_)
> >                if chunk_no == CHUNK_TOT: return
> >                else:
> >                     ... read data...
> >                    reactor.iterate()
> ><---------------------------------------------------------- THIS LINE
> >                    d = filesender.callRemote("send_
> >chunk", secret, chunk_no, data)
> >                    d.addCallback(send)
>
> Erm.  Sorry.  This isn't a solution to whatever problem you're having.
> It is entirely invalid to use reactor.iterate() in this way.
>
> Jean-Paul
>
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