Subj : JS_GC question!
To   : netscape.public.mozilla.jseng
From : "richardl" <xinyul@prediwave.com>
Date : Thu Dec 11 2003 11:42 am

I embedded spidermonkey to a mini-browser. It works but:

Having problem when running the following script:

<SCRIPT>
function testMem()
{
 for (var i=0; i<1000; i++ )
 {
  var foo = new Function();
  delete foo;
 }
}
</SCRIPT>
<Input type="button" value="click for memory test"  onclick="testMem()">

After I clicked twice the button, out of memory occured!

So I have to put  JS_MaybeGC(cx) after each EvaluateScript() call. It helps
to gain back the memory, but I found it is not stable any more.

It  often causes crash in
js_FindProperty(JSContext * 0x0126e640, long 19227776, JSObject * *
0x00faf630, JSObject * * 0x00faf62c, JSProperty * * 0x00faf5b0) line 1439 +
33 bytes

The statement is      if (!OBJ_LOOKUP_PROPERTY(cx, obj, id, &pobj, &prop))
  return JS_FALSE;

obj is not a valid JSObject structure. It looks like the memory is
corrupted.

Any idea what is wrong here. Is it safe to do GC in the middle of a page? I
used to do clean only when changing web page.

Thanks!

Richard

.