The first kse_create call
Julian Elischer
julian at elischer.org
Tue Jun 17 15:28:30 PDT 2003
On Tue, 17 Jun 2003, Daniel Eischen wrote:
> > Hi,
> >
> > I'm trying to run simple program with kse. As I understood the very
> > first kse_create call does not create KSE but just assigns the mailbox
> > to the existing "default" KSE and makes upcall. May be I'm doing
> > something wrong,
> > but I never got upcall on the first kse. When I create another KSE (and
> > another KSE group) I immediatelly get the upcall for this (second) KSE.
> > Just interesting how does it work - may be the first KSE has special
> > behavior?
>
> This is the correct behavior. The first kse_create() does not
> generate an immediate upcall. It only flags the current context
> as being a KSE. An upcall in this initial KSE will take place
> under the same conditions as other KSEs (KSE mailbox has a thread
> mailbox pointer and thread blocks, quantum expires, etc).
> Subsequent kse_create() calls will generate upcalls immediately
> (well, at the mercy of the kernel scheduler).
Wellll, the kse_create() will not upcall, but the new kse that is
created will upcall.
The kse_create() call will just return to the original thread.
>
> --
> Dan Eischen
>
> _______________________________________________
> freebsd-threads at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-threads
> To unsubscribe, send any mail to "freebsd-threads-unsubscribe at freebsd.org"
>
More information about the freebsd-threads
mailing list