Subj : SpiderMonkey threading issues
To   : netscape.public.mozilla.jseng
From : Sean Proctor
Date : Wed Mar 09 2005 04:05 pm

Hello,

After reading a lot of prior posts, it seems like what I am trying to do
should work. So I think that I am missing something.

I want to run a script from within one thread. In that script I am
defining JS functions and passing them to a native (C) function. Those
functions will be called under certain external conditions from another
thread.

The things I'm unsure of are: Do I need to use NSPR to create my threads?
Right now I am using glib for that. Is there anything special I need to do
with objects to use them in a different context from the one they were
created in?

Main thread:

	/* create context and associate global object */
	cx = JS_NewContext (js_runtime, JS_CONTEXT_SIZE);
	JS_BeginRequest (cx);
	global = JS_NewObject(cx, &global_class, NULL, NULL);
	JS_InitStandardClasses(cx, global);

Then I define my functions and execute the script. Nothing exciting there.

Callback thread:

	/* create context */
	cx = JS_NewContext (js_runtime, JS_CONTEXT_SIZE);
	JS_BeginRequest (cx);
	JS_SetGlobalObject (cx, global);

	/* C code to get the function and the parameters for it here */

	/* call function */
	JS_CallFunction (cx, global, function, 1, args, &rval);

Thanks in advance,
Sean

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