On Wed, 9 Aug 2000, Jiang Wu wrote:
> > -----Original Message-----
> > From: Mo DeJong [mailto:[EMAIL PROTECTED]]
> > Sent: Wednesday, August 09, 2000 1:34 PM
> > To: [EMAIL PROTECTED]
> > Subject: [Tcl Java] Re: TclBlend Initialization Mutex
> >
> > Con:
> > Non-thread safe extensions may have problems under Unix.
>
> It seems that there are at least two reasons why non-thread safe extensions
> can have problems in a threaded process like Tcl or JVM.
>
> 1. access system level globals
>
> Hopefully, this can be fixed by compiling with -D_REENTRANT.
>
> 2. access Tcl globals
>
> What to do?
>
> Right now, I am experimenting with using -D_REENTRANT (but without
> -DTCL_THREADS) to compile a non-threaded Tcl. The Solaris problem did go
> away using this special Tcl compilation.
But you would need to recompile Tcl and all the extensions
with -D_REENTRANT. While I would agree that this is a neat
hack, I am not sure it is a good solution. Folks that
use a pre-compiled version will not be able to use this.
There is lots of history that suggests that core patches
are not a good solution (Itcl). We may end up having
to do away with pre-compiled versions of Tcl Blend all
together, just so that people do not make this mistake.
Mo DeJong
Red Hat Inc
----------------------------------------------------------------
The TclJava mailing list is sponsored by Scriptics Corporation.
To subscribe: send mail to [EMAIL PROTECTED]
with the word SUBSCRIBE as the subject.
To unsubscribe: send mail to [EMAIL PROTECTED]
with the word UNSUBSCRIBE as the subject.
To send to the list, send email to '[EMAIL PROTECTED]'.
An archive is available at http://www.mail-archive.com/tcljava@scriptics.com
