libpthread sigwait patch

[David Xu]

----- Original Message ----- 
From: "Daniel Eischen" <eischen at pcnet1.pcnet.com>
To: "David Xu" <davidxu at freebsd.org>
Cc: <freebsd-threads at freebsd.org>
Sent: Tuesday, April 29, 2003 8:08 PM
Subject: Re: libpthread sigwait patch


> On Tue, 29 Apr 2003, David Xu wrote:
> 
> > Now, I am start to looking some signal code in libpthread,
> > here is my first signal patch to allow MySQL server 4.0.10 
> > run on my machine happily.
> 
> Yeah, that' what I was looking at (signal code).  We need
> a better way of setting up signals on running threads.
> Right now they're just added to the pending set, but
> thr_sched_switch() or the scheduler need to add them
> to the frame.
> 

Yes,  I would like to let scheduler install a signal frame, 
in scheduler,  it might not need to call THR_GETCONTEXT,
just use already existing context, and we might have chance to 
direct push signal from kernel upcall to thread, I think pthread_sigmask
can do a context switch to let scheduler install a signal frame for it,
these are my random ideas... probably you already have some code for
these ? :-)

> > http://people.freebsd.org/~davidxu/thr_sigwait.c.diff
> 
> I'll take a look.
> 
> -- 
> Dan Eischen
> 
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