# 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.