[mythtv-users] Remote mythfrontend displays no video

[David Won]

This latest CVS update fixed my problem. Thanks a lot.

Dave


On Sun, 2003-05-04 at 16:54, Bruce Markey wrote:
> Isaac Richards wrote:
> > On Saturday 03 May 2003 04:05 pm, Bruce Markey wrote:
> > 
> >>This patch is a workaround that prevents WriteBlock from
> >>returning until the write queue is below a threshold. I'm
> >>still trying to find the exact cause of the file header not
> >>being read correctly before applying a fix for the specific
> >>problem.
> >>
> >>Please let me know if this patch fixes your problem.
> > 
> > 
> > Does reverting to the old code fix things for you? I just replaced it because 
> > bytesToWrite() was always 0 for me after the flush, so I figured it was silly 
> > to have the loop there in the first place..  Could always replace it with 
> > something like:
> > 
> >   while (socket->bytesToWrite() > 0)
> >   {
> >       socket->flush();
> >       if (socket->bytesToWrite() > 0)
> >          usleep(1000);
> >   }
> 
> Waiting until the bytes have been written before processing
> the next RequestBlock does work around the problem. However,
> the root cause was RemoteFile::Seek() failed to drian all the
> old data if the network was slow and the the queue was long.
> I fixed this by looping until no more data is found on the
> socket. In testing, this sometimes took three or more
> iterations.
> 
> For WriteBlock, I think flush only needs to be called once
> then simply wait for the packets to be sent on the network. 
> Before these fixes I would see bytesToWrite grow to over 2MB
> if it continued to process RequestBlocks without waiting. The
> fix is to wait until there are fewer bytes in the queue than
> the size of the current write. This prevents the queue from
> growing unchecked but still returns to start processing the
> next request so that the pipeline keeps moving.
> 
> --  bjm
> 
> 
> 
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-- 
David Won <phlegm at rogers.com>