import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicLong;
+import net.mograsim.logic.core.timeline.PauseableTimeFunction;
import net.mograsim.logic.core.timeline.Timeline;
+import net.mograsim.logic.core.timeline.Timeline.ExecutionResult;
//TODO maybe move to logic core?
public class LogicExecuter
private final AtomicBoolean shouldBeRunningLive;
private final AtomicBoolean isRunningLive;
+ private final AtomicBoolean isPaused;
private final AtomicLong nextExecSimulTime;
private final Thread simulationThread;
+ PauseableTimeFunction tf;
+
public LogicExecuter(Timeline timeline)
{
this.timeline = timeline;
- timeline.setTimeFunction(System::currentTimeMillis);
+ tf = new PauseableTimeFunction();
+ timeline.setTimeFunction(tf);
shouldBeRunningLive = new AtomicBoolean();
isRunningLive = new AtomicBoolean();
+ isPaused = new AtomicBoolean();
nextExecSimulTime = new AtomicLong();
simulationThread = new Thread(() ->
{
{
while (shouldBeRunningLive.get())
{
- // always execute to keep timeline from "hanging behind" for too long
- long current = System.currentTimeMillis();
- timeline.executeUntil(timeline.laterThan(current), current + 10);
+ long current = tf.getTime();
+ // The tf.isPaused() condition is justified, because timeline.getSimulationTime() returns the timestamp of the last
+ // processed event during executeUntil()
+ if (timeline.executeUntil(() -> timeline.laterThan(current).getAsBoolean() || tf.isPaused(),
+ System.currentTimeMillis() + 10) == ExecutionResult.EXEC_OUT_OF_TIME)
+ timeline.synchTime(); // TODO: should this also be called if tf.isPaused() condition is met?
+ long nextEventTime = timeline.nextEventTime();
long sleepTime;
if (timeline.hasNext())
- sleepTime = timeline.nextEventTime() - current;
+ sleepTime = (long) ((nextEventTime - current) * tf.getSimulTimeToRealTimeFactor());
else
sleepTime = 10000;
try
{
- nextExecSimulTime.set(current + sleepTime);
+ nextExecSimulTime.set(nextEventTime);
if (sleepTime > 0)
Thread.sleep(sleepTime);
+
+ synchronized (isPaused)
+ {
+ while (isPaused.get())
+ isPaused.wait();
+ }
}
catch (@SuppressWarnings("unused") InterruptedException e)
{// do nothing; it is normal execution flow to be interrupted
if (Timeline.timeCmp(event.getTiming(), nextExecSimulTime.get()) < 0)
simulationThread.interrupt();
});
+ // not optimal; but we don't expect this to happen very often
+ tf.addSimulTimeToRealTimeFactorChangedListener(d -> simulationThread.interrupt());
}
public void executeNextStep()
waitForIsRunning(false);
}
+ public void unpauseLiveExecution()
+ {
+ synchronized (isPaused)
+ {
+ tf.unpause();
+ isPaused.set(false);
+ isPaused.notify();
+ }
+ }
+
+ public void pauseLiveExecution()
+ {
+ synchronized (isPaused)
+ {
+ tf.pause();
+ isPaused.set(true);
+ }
+ }
+
+ public boolean isPaused()
+ {
+ return isPaused.get();
+ }
+
+ public double getSpeedFactor()
+ {
+ return tf.getSpeedFactor();
+ }
+
+ public void setSpeedFactor(double factor)
+ {
+ tf.setSpeedFactor(factor);
+ }
+
private void waitForIsRunning(boolean expectedState)
{
while (isRunningLive.get() ^ expectedState)