Function MAKE-RECURSIVE-LOCK
Syntax:
make-recursive-lock &key name => lock
Arguments and values:
name -> a string or nil.
lock -> a recursive-lock object.
Description:
Creates a recursive lock named name.
Exceptional situations:
Signals a condition of type
type-error
if name is neither a string nor nil.
See also:
Notes:
A lock is also commonly known as a mutex.