Library prosa.model.readiness.basic

Require Export prosa.behavior.all.

Liu & Layland Readiness Model

In this module, we define the notion of job readiness for the classic Liu & Layland model without jitter or self-suspensions, where pending jobs are simply always ready.

Section LiuAndLaylandReadiness.
Consider any kind of jobs...
  Context {Job : JobType}.

... and any kind of processor state.
  Context {PState : ProcessorState Job}.

Suppose jobs have an arrival time and a cost.
  Context `{JobArrival Job} `{JobCost Job}.

In the basic Liu & Layland model, a job is ready iff it is pending.
  #[local,program] Instance basic_ready_instance : JobReady Job PState :=
  {
    job_ready sched j t := pending sched j t
  }.
  Next Obligation. by done. Qed.

End LiuAndLaylandReadiness.