Subj : Re: Embedded Spikermonkey with multi-threaded server...
To   : Corillian
From : Brendan Eich
Date : Wed Oct 27 2004 11:23 pm

Corillian wrote:
> I am writing a multi-threaded server that is using spikermonkey to extend 
> the application. I was wondering is spidermonkey capable of simultaneously 
> executing multiple scripts within a single context (thread)? 


That makes no sense -- how can you "simultaneously" (software 
concurrency, hardware parallelism) execute multiple scripts in one 
thread?  If you mean by using multiple coroutines (user-level threads, 
fibers, whatever the OS calls them) within one OS or hardware thread, 
the answer is yes -- because such coroutines provide their own stack.

But you can't use a JSContext from more than one thread or coroutine at 
a time, or all hell will break loose.  The context contains the stack 
and VM registers, so those pigeon-holes would be contested and clobbered 
by the several "simultaneous" users.

Why aren't you using a context per thread, and a runtime per process?

/be

.