Overview

The DDLogger protocol specifies that an optional formatter can be added to a logger. Most (but not all) loggers will want to support formatters.

However, writting getters and setters in a thread safe manner, while still maintaining maximum speed for the logging process, is a difficult task.

To do it right, the implementation of the getter/setter has strict requiremenets: - Must NOT require the logMessage method to acquire a lock. - Must NOT require the logMessage method to access an atomic property (also a lock of sorts).

To simplify things, an abstract logger is provided that implements the getter and setter.

Logger implementations may simply extend this class, and they can ACCESS THE FORMATTER VARIABLE DIRECTLY from within their logMessage method!