module Threads:All the definitions of built-in concurrency primitives.sig
..end
These definitions are grouped as one module to allow simple replacement of these
primitives by other implementations of concurrency, such as coThreads.
module Threads.Condition: Batteries.Condition
module Threads.Event: Batteries.Event
module Threads.Mutex: Batteries.Mutex
module Threads.RMutex: Batteries.RMutex
module Threads.Thread: Batteries.Thread
1003.1c
and Win32.