sosend() and mbuf

Ed Schouten ed at 80386.nl
Tue Aug 4 09:56:51 UTC 2009


* Maslan <maslanbsd at gmail.com> wrote:
> > Is it possible to call kern_open() from within a kernel thread anyway?
> I think yes, It worked on the parent thread before creating a new kthread.
> See OpenKETA source, its using the same approach.
> > kern_open() depends on a file descriptor table, right?
> Yes, it returns a fd in the curthread->td_retval[0], which i should
> use within the same thread to deal with this file.

Didn't someone (Jeff Roberson?) develop some nice in-kernel API for
accessing files some years ago? Why not use that?

-- 
 Ed Schouten <ed at 80386.nl>
 WWW: http://80386.nl/
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