Re: messaging questions...

[David Leimbach <leimy2k@xxxxxxx>]

On Nov 25, 2003, at 2:05 AM, Matthew Dillon wrote:

> :Cool.... So I have been gleefully digging through the thread code as 
> it
> :seems important to
> :understand that before trying to message a thread :)...  I noticed the
> :kernel has a way to get
> :the current thread very easily via some macros and functions.
> :
> :Is there any way a user can just find out what his current thread is?
> :I presume every process
> :has at least 1 of these things or a lot of what I am reading in the
> :kernel doesn't look like it
> :would work very well.
> :
> :Dave
>
>     Each user process has only one kernel thread.  That is, DFly is not
>     organized like the KSE model in FreeBSD-5.  DFly's organization
>     is very simple by comparison because the intention with DFly is
>     to have to userland manage userland threads entirely within
>     userland.

Tautolly :) erm Totally :)  So pthreads have to be lwkt 1:1 mapping.
This isn't actually as bad as it sounds as it lets you take advantage of
the natural SMP of the system without major added complexity to the
code.

I was actually having "fun" I guess making KSE's do what I wanted...
it always killed the kernel but for a short time I had a really 
lightweight
userland "leimy-thread" :).   The code I wrote for it was however a
product of evil... the spawn of satan so I had to destroy it.

Ok so I clobbered it and forgot to back up.

>     If that makes any sense :-)
>
> 					-Matt
> 					Matthew Dillon
> 					<dillon@xxxxxxxxxxxxx>