public Job Reclaim(int id) {
Job newjob = new Job(id, 1);
int id_out;
if (FreeSlots > 0) {
// put X into a free page slot
return newjob;
} else {
if (A1in.getLength() > Kin) {
Job A1inTail = A1in.DequeueFront();
id_out = A1inTail.JobID();
// delete A1inTail; ??? paged out of A1in buffer (but may still need to keep the job)
Job headerJob = new Job(id_out, 1);
A1out.EnqueueJob(0, headerJob);
if (A1out.getLength() > Kout) {
Job removedHeader = A1out.DequeueFront();
removedHeader = null;
}
// put X into the reclaimed page slot
return newjob;
} else {
Job AmTail = Am.DequeueFront();
AmTail = null;
// put X into the reclaimed page slot
return newjob;
}
}
}
public void Request(int id) {
Job reclaimed = null;
if (Am.getJob(id) != null) {
Am.EnqueueJob(0, Am.DequeueJob(id));
} else {
if (A1out.getJob(id) != null) {
reclaimed = Reclaim(id);
Am.EnqueueJob(0, reclaimed);
} else {
if (A1in.getJob(id) != null) {
// do nothing
} else {
reclaimed = Reclaim(id);
A1in.EnqueueJob(0, reclaimed);
}
}
}
}
public void AddtoA1in(Job job) {
A1in.EnqueueJob(0, job);
}
public void AddtoA1out(Job job) {
A1out.EnqueueJob(0, job);
}
public void AddtoAm(Job job) {
Am.EnqueueJob(0, job);
}
