IoSchedulerJobFunc

typealias IoSchedulerJobFunc = (job: IoSchedulerJob, cancellable: Cancellable?, <Error class: unknown class>?) -> Boolean(source)

I/O Job function.

Long-running jobs should periodically check the @cancellable to see if they have been cancelled.

param job a #GIOSchedulerJob.
param cancellable optional #GCancellable object, null to ignore.
param data data passed to the callback function
return true if this function should be called again to complete the job, false if the job is complete (or cancelled)