K 10 svn:author V 7 davidxu K 8 svn:date V 27 2010-09-21T06:47:04.984813Z K 7 svn:log V 222 If we are at cancellation point, always work as deferred mode despite whether asynchronous mode is turned on or not, this always gives us a chance to decide whether thread should be canceled or not in cancellation points. END