2010-09-20 17:18:17 -07:00
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<head>
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<title>GC race with actors on the parent</title>
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<script type="text/javascript"
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src="/MochiKit/packed.js"></script>
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<script type="text/javascript"
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src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css"
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href="/tests/SimpleTest/test.css" />
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<body onload="start()">
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<p id="display"></p>
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<embed id="p" type="application/x-test" wmode="window"></embed>
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<script class="testbody" type="application/javascript">
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SimpleTest.waitForExplicitFinish();
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function start() {
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2010-09-24 07:32:02 -07:00
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if (!SimpleTest.areOOPPenabled()) {
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2010-09-20 17:18:17 -07:00
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ok(true, "Skipping this test when IPC plugins are not enabled.");
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SimpleTest.finish();
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return;
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}
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else {
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setTimeout(checkGCRace, 1000);
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}
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}
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var nested = false;
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function cb(f) {
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ok(!nested, "Callback shouldn't occur in a nested stack frame");
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try {
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f(35);
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ok(true, "Callback was called, no crash");
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}
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catch (e) {
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ok(false, "Exception calling callback object: " + e);
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}
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SimpleTest.executeSoon(removePlugin);
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}
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function removePlugin() {
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var p = document.getElementById('p');
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p.parentNode.removeChild(p);
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p = null;
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netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');
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Components.utils.forceGC();
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SimpleTest.finish();
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}
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function checkGCRace() {
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nested = true;
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// The plugin will hand back a function and immediately sleep.
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// We will lose our only reference to the function and force GC, followed
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// by calling us with that function object again. We should be able to
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// call the function and not crash.
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var p = document.getElementById('p');
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var f = p.checkGCRace(cb);
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f = null; // 'f' should be collected next GC
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nested = false;
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setTimeout(function() {
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netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');
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Components.utils.forceGC();
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}, 2000);
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}
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</script>
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