Double Checked Locking
Double Checked LockingIntent: The Double-Checked Locking optimization AntiPattern reduces contention and synchronization overhead whenever CriticalSections of code need to acquire locks just once, but must be thread-safe when they do acquire locks.
http://www.cs.wustl.edu/~schmidt/PDF/DC-Locking.pdf
Related Patterns: LockPattern
This is an AntiPattern because in most languages it doesn't work (DoubleCheckedLockingIsBroken, CppDoubleCheckLock).
See EffectiveJava by JoshuaBloch.
EditText of this page
(last edited August 30, 2004)
or FindPage with title or text search