Re: Examples of concurrent coproc usage?

[Chet Ramey]

On 4/17/24 8:55 PM, Martin D Kealey wrote:
> On Wed, 17 Apr 2024, Chet Ramey wrote:
> > On 4/16/24 2:46 AM, Carl Edquist wrote:
> >
> > > But the shell is pretty slow when you ask it to shovel data around like
> > > this.  The 'read' builtin, for instance, cautiously does read(2) calls of a
> > > single byte at a time.
> >
> > It has to do it that way to find the delimiter on a non-seekable file
> > descriptor, since it has to leave everything it didn't consume available
> > on stdin.
>
> Has anyone tried asking any of the kernel teams (Linux, BSD, or other) to
> add a new system call such as readln() or readd()?

They'd probably point you to an optimized version of getdelim/getline.
You're just pushing the work down a layer.

--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/

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