Changeset 40888 in webkit for trunk/JavaScriptCore/wtf/qt/MainThreadQt.cpp

Timestamp:

Feb 11, 2009, 11:58:36 PM (16 years ago)

Author:

[email protected]

Message:

2009-02-11 Dmitry Titov <​[email protected]>

Reviewed by Alexey Proskuryakov.

​https://bugs.webkit.org/show_bug.cgi?id=23705
Fix the UI freeze caused by Worker generating a flood of messages.
Measure time we spend in executing posted work items. If too much time is spent
without returning to the run loop, exit and reschedule.

• wtf/MainThread.h: Added initializeMainThreadPlatform() to initialize low-level mechanism for posting work items from thread to thread. This removes #ifdefs for WIN and CHROMIUM from platform-independent code.

• wtf/MainThread.cpp: (WTF::initializeMainThread): (WTF::dispatchFunctionsFromMainThread): Instead of dispatching all work items in the queue, dispatch them one by one and measure elapsed time. After a threshold, reschedule and quit.

(WTF::callOnMainThread):
(WTF::callOnMainThreadAndWait):
Only schedule dispatch if the queue was empty - to avoid many posted messages in the run loop queue.

• wtf/mac/MainThreadMac.mm: (WTF::scheduleDispatchFunctionsOnMainThread): Use static instance of the mainThreadCaller instead of allocating and releasing it each time. (WTF::initializeMainThreadPlatform):
• wtf/gtk/MainThreadChromium.cpp: (WTF::initializeMainThreadPlatform):
• wtf/gtk/MainThreadGtk.cpp: (WTF::initializeMainThreadPlatform):
• wtf/qt/MainThreadQt.cpp: (WTF::initializeMainThreadPlatform):
• wtf/win/MainThreadWin.cpp: (WTF::initializeMainThreadPlatform):
• wtf/wx/MainThreadWx.cpp: (WTF::initializeMainThreadPlatform):

File:

• trunk/JavaScriptCore/wtf/qt/MainThreadQt.cpp (modified) (2 diffs)

trunk/JavaScriptCore/wtf/qt/MainThreadQt.cpp

@@ -59 +59 @@
 Q_GLOBAL_STATIC(MainThreadInvoker, webkit_main_thread_invoker)
 
+void initializeMainThreadPlatform()
+{
+}
 
 void scheduleDispatchFunctionsOnMainThread()
@@ -65 +68 @@
 }
 
-}
+} // namespace WTF
 
 #include "MainThreadQt.moc"