timer-info

Arguments: timer

This generic function provides a place for an application to store arbitrary information about its current use of a timer. Typically, when an application starts a timer, it will store an object here to which the timer's on-timer function may (or may not) apply its functionality when it is invoked.

The value of this property, which can be set with setf and this function, can be any Lisp object.

(The timer class can of course be subclassed in order to add custom slots for this or any other purpose, but this single timer-info slot is provided since such a handy place is often needed due to the asynchronous nature of timers, and a single slot is often sufficient.)

timer-info is a property of the timer class.

See cg-timers.htm for more information on timers.

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Created 2019.8.20.