[Webkit-unassigned] [Bug 134606] New: Audio Context isn't being collected sufficiently eagerly.

Thu Jul 3 12:33:44 PDT 2014

https://bugs.webkit.org/show_bug.cgi?id=134606

           Summary: Audio Context isn't being collected sufficiently
                    eagerly.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Audio
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: gprog.dev at gmail.com
                CC: crogers at google.com, jer.noble at apple.com

If I do this as below , after I click on the "TEST 1" button, it creates Audio Context thread but if I click it again it doesn't destroy the older Audio Context object rather creates another Audio Context (spawning another thread) on top of it. 
After doing this multiple times, it fails because of the cap limit on the number of Audio Context that can be created simultaneously.

I also tried forcing a Javascript GC (calling JSC::Heap::collectAllGarbage) by opening the inspector window but it doesn't clear these Audio Context objects which are there until I do a reload on the page which calls JSC::Heap::collectAllGarbage and clear off all the Audio Context objects created.

<html>
<body>
<h4> WEB AUDIO TEST </h4>
<canvas id='canvas' width='800px' height='500px'></canvas>
<button type="button" onclick="test()" width="200" height="300">TEST 1</button>
<script type='text/javascript'>
function test()
{
    if(true)
    {
        var testCtx = new webkitAudioContext();
        var audioSource = testCtx.createBufferSource();        
    }
}

</script>
</body>
</html>

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