Subject: Re: [linux-audio-dev] re: less and seeking on piped input
From: Erik de Castro Lopo (erikd_AT_zip.com.au)
Date: pe elo 20 1999 - 07:15:23 EDT
David Slomin wrote:
<snip>
> BTW, Erik, getting pipes to work is really trivial if you already have
> code that reads a file (sequentially, not random access). Just do an
> fdopen on file descriptor zero, and you're done.
Or use variables stdin/stdout as the FILE* parameter for fread/frwrite.
> You can also test the limits of what pipes can do without modifying your
> code at all by using named pipes (fifos). These are wonderful but often
> overlooked "files" (in the manner that devices are "files") which you can
> open for reading and writing at once by different apps. Take a look at
> the mkfifo man page. I have no idea why they're not used more often.
Good idea.
I've actually used them before. I have a little daemon program running
which writes to a named pipe (".signature") in my home directory.
Whenever
I send mail or a newsgroup posting Netscape reads this file and the
daemon
then writes a new message to the named pipe. Kind of cute.
Erik
--
+-------------------------------------------------+
Erik de Castro Lopo erikd_AT_zip.com.au
+-------------------------------------------------+
Linux: generous programmers from around the world all join
forces to help you shoot yourself in the foot for free.
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