kc3-lang/libxml2

2015-03-03T19:40:06

Fix the fix to Windows locking For https://bugzilla.gnome.org/show_bug.cgi?id=737851 Unfortunately this change has introduced a problem which results in occasional hangs on Windows when running multi-threaded on a multi-core host. When locking the xmlRMutex the count field is increment inside the critical section but when unlocking the count field is decremented outside the critical section. The increment/decrement is not atomic so this can result in the count field being updated incorrectly. The solution is to change xmlRMutexUnlock to decrement the count field before leaving the critical section rather than after.