Type for calling a callback in a process.
This is essentially a wrapper around a function pointer.
Actually trigger the callback.
This will queue the
Callback for the associated process. It returns
false if the queue for the process is full and the callback could not
The arguments (
r0-r2) are the values passed back to the process and
are specific to the individual
Auto Trait Implementations
type Error = Infallible
The type returned in the event of a conversion error.