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Re: [Discuss-gnuradio] Pipe Tricks
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From: |
cswiger |
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Subject: |
Re: [Discuss-gnuradio] Pipe Tricks |
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Date: |
Wed, 6 Apr 2005 11:26:43 -0400 (EDT) |
On Wed, 6 Apr 2005, cswiger wrote:
> Trying
>
> pipe_fd = open("/pipe","r")
> gr.file_descriptor_source(gr.sizeof_char,pipe_fd.fileno())
>
> starts out but as soon as I start the source to fill the pipe
> I get:
>
> file_descriptor_source[read]: Bad file descriptor
>
Ok, turns out you have to use
import os
source_fd = os.open("/pipe", os.O_RDONLY)
src = gr.file_descriptor_source(gr.sizeof_char,source_fd)
low level io.
--Chuck