CoarseLocked

locked void locked(void delegate(T*) dg): Lock, call dg(&t) for internal value t, then unlock.
locked void locked(void delegate() dg): Lock, call dg(), then unlock.
peek T* peek(): Unshared accessor to the internal T. WARNING: This method does not provide mutual exclusion.
tryLocked bool tryLocked(void delegate(T*) dg): Attempt to lock, and if successful, call dg(&t) for internal value t, then unlock.
tryLocked bool tryLocked(void delegate() dg): Attempt to lock, and if successful, call dg() then unlock.

Constructors