com.vmlens.trace.agent.bootstrap.parallize.logic.decisionLogic.ModeReplay Maven / Gradle / Ivy
package com.vmlens.trace.agent.bootstrap.parallize.logic.decisionLogic;
import com.vmlens.trace.agent.bootstrap.parallize.logicState.Decision;
import com.vmlens.trace.agent.bootstrap.parallize.logicState.DecisionQueue;
import com.vmlens.trace.agent.bootstrap.parallize.logicState.DecisionWaiting;
import com.vmlens.trace.agent.bootstrap.parallize.logicState.ThreadId2State;
import com.vmlens.trace.agent.bootstrap.parallize.operation.Operation;
public class ModeReplay implements Mode {
private final DecisionQueue currentSteps;
private final DecisionQueue startSteps;
public ModeReplay(DecisionQueue stackNode) {
super();
this.currentSteps = stackNode;
this.startSteps = stackNode.cloneQueue();
}
@Override
public Decision decide(Operation operation, long threadId,
ThreadId2State threadId2State) {
return currentSteps.dequeue();
}
@Override
public Mode beforeDecision() {
if(currentSteps.isEmpty())
{
return new ModeNewDecisions(startSteps);
}
else
{
return this;
}
}
@Override
public DecisionWaiting decide4ThreadEnded(ThreadId2State threadId2State) {
Decision decision = currentSteps.dequeue();
if( decision instanceof DecisionWaiting )
{
return (DecisionWaiting) decision;
}
return new DecisionWaiting(0);
}
@Override
public Decision decideBewteenKeepGoingOrWakeup(ThreadId2State threadId2State) {
return currentSteps.dequeue();
}
}