22397 2008-11-21 02:48:50 -0800 Worker threads are not destroyed if running a tight loop 2008-11-21 23:43:25 -0800 1 1 1 Unclassified WebKit WebCore JavaScript 528+ (Nightly build) Mac OS X 10.5 RESOLVED FIXED P2 Normal --- 1 ap ap darin oldest_to_newest 99627 0 ap 2008-11-21 02:48:50 -0800 Worker threads need to be destroyed when their Worker object is destroyed. Currently, this doesn't happen if the thread in running a JS loop, because the event loop in not entered in this case. 99630 1 25345 ap 2008-11-21 02:58:13 -0800 Created attachment 25345 proposed fix 99633 2 25347 ap 2008-11-21 04:30:06 -0800 Created attachment 25347 proposed fix Removed access to possibly already destroyed "this" object. 99688 3 25347 darin 2008-11-21 13:26:38 -0800 Comment on attachment 25347 proposed fix > + m_globalData->interpreter->setTimeoutTime(1); What does this "1" mean? Is it a magic constant of some sort? 1 second perhaps? > + // The thread object may be already destroyed from notification now, don't try to access "this". I don't think this comment makes it clear enough that it was the assignment m_workerContext = 0 that could trigger the notification. I had to study the code for a while to understand why the previous line could access "this" without a problem, until I realized that it was the previous line that was the trigger. > + // FIXME: rudely killing the thread won't work when we allow nested workers, because they will try to post notifications of their destruction. > + m_messageQueue.kill(); Please capitalize "rudely". r=me 99689 4 ap 2008-11-21 13:36:22 -0800 (In reply to comment #3) > (From update of attachment 25347 [review]) > > + m_globalData->interpreter->setTimeoutTime(1); > > What does this "1" mean? Is it a magic constant of some sort? 1 second perhaps? This is 1 millisecond, which is the minimal value that can be passed to this function (0 is magic, and means no timeout). 99768 5 ap 2008-11-21 23:43:25 -0800 Committed revision 38689. Re-worded the comments a bit for clarity. 25345 2008-11-21 02:58:13 -0800 2008-11-21 04:30:06 -0800 proposed fix InterruptJS.txt text/plain 7799 ap SW5kZXg6IFdlYkNvcmUvQ2hhbmdlTG9nCj09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT0KLS0tIFdlYkNvcmUvQ2hhbmdlTG9n CShyZXZpc2lvbiAzODY1NikKKysrIFdlYkNvcmUvQ2hhbmdlTG9nCSh3b3JraW5nIGNvcHkpCkBA IC0xLDMgKzEsMjkgQEAKKzIwMDgtMTEtMjEgIEFsZXhleSBQcm9za3VyeWFrb3YgIDxhcEB3ZWJr aXQub3JnPgorCisgICAgICAgIFJldmlld2VkIGJ5IE5PQk9EWSAoT09QUyEpLgorCisgICAgICAg IGh0dHBzOi8vYnVncy53ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9pZD0yMjM5NworICAgICAgICBX b3JrZXIgdGhyZWFkcyBhcmUgbm90IGRlc3Ryb3llZCBpZiBydW5uaW5nIGEgSlMgbG9vcAorCisg ICAgICAgIFNpbmNlIHRoZSBldmVudCBsb29wIGlzIG5vdCBldmVyIGVudGVyZWQgYWdhaW4gaW4g dGhpcyBjYXNlLCB0aGUgZml4IG5lY2Vzc2FyaWx5IGludm9sdmVzCisgICAgICAgIHNvbWUgc2hh cmVkIGRhdGEgaGFja2VyeS4KKworICAgICAgICAqIGRvbS9Xb3JrZXJUaHJlYWQuY3BwOiAoV2Vi Q29yZTo6V29ya2VyVGhyZWFkOjpzdG9wKToKKyAgICAgICAgKiBkb20vV29ya2VyVGhyZWFkLmg6 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