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Re: [Discuss-gnuradio] buffering in gr_file
From: |
Eric Blossom |
Subject: |
Re: [Discuss-gnuradio] buffering in gr_file |
Date: |
Tue, 17 Feb 2009 11:10:25 -0800 |
User-agent: |
Mutt/1.5.18 (2008-05-17) |
On Tue, Feb 17, 2009 at 10:20:31AM -0500, Marcus D. Leech wrote:
> Is there a way to turn off buffering on gr_file? (Short of adding an
> fflush in the C++ code that implements the work function?).
>
> I have an app that writes a single floating-point number to a FIFO at a
> rate of 2Hz, and it doesn't make it to the
> outside world until the STDIO buffer gets filled. *I* think this is
> a bug, since it violates the reasonable expectation
> of the quasi-realtime nature of Gnu Radio.
>
> Any opinions?
>
If you use gr.file_descriptor_{source,sink} there won't be any buffering.
Eric