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src/engine/job/JobWorker.java

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+// • ▌ ▄ ·.  ▄▄▄·  ▄▄ • ▪   ▄▄· ▄▄▄▄·  ▄▄▄·  ▐▄▄▄  ▄▄▄ .
+// ·██ ▐███▪▐█ ▀█ ▐█ ▀ ▪██ ▐█ ▌▪▐█ ▀█▪▐█ ▀█ •█▌ ▐█▐▌·
+// ▐█ ▌▐▌▐█·▄█▀▀█ ▄█ ▀█▄▐█·██ ▄▄▐█▀▀█▄▄█▀▀█ ▐█▐ ▐▌▐▀▀▀
+// ██ ██▌▐█▌▐█ ▪▐▌▐█▄▪▐█▐█▌▐███▌██▄▪▐█▐█ ▪▐▌██▐ █▌▐█▄▄▌
+// ▀▀  █▪▀▀▀ ▀  ▀ ·▀▀▀▀ ▀▀▀·▀▀▀ ·▀▀▀▀  ▀  ▀ ▀▀  █▪ ▀▀▀
+//      Magicbane Emulator Project © 2013 - 2022
+//                www.magicbane.com
+
+
+package engine.job;
+
+import engine.core.ControlledRunnable;
+import org.pmw.tinylog.Logger;
+
+import java.util.Queue;
+
+
+public class JobWorker extends ControlledRunnable {
+	private final int workerId;
+
+	private final Queue<AbstractJob> jobWaitQueue;
+	private final Queue<JobWorker> jobWorkerList;
+		
+	private AbstractJob currentJob;
+
+	public JobWorker(final int workerID, int priorityQueue,
+			Queue<AbstractJob> jobWaitQueue,
+			Queue<JobWorker> jobWorkerList) {
+		super("JobWorker_" +  priorityQueue + '_' +  workerID);
+		
+		workerId = workerID;
+		this.jobWaitQueue = jobWaitQueue;
+		this.jobWorkerList = jobWorkerList;
+	}
+
+	@Override
+	protected boolean _Run() {
+
+		while (this.runCmd) {
+			// Access to Queue is synchronized internal to JobManager
+			this.currentJob = this.jobWaitQueue.poll();
+
+			if (this.currentJob == null) {
+				try {
+					// use self as MUTEX
+					synchronized (this) {
+						this.jobWorkerList.add(this);
+						this.wait();
+					}
+
+				} catch (InterruptedException e) {
+					Logger.error(this.getThreadName(), e.getClass()
+							.getSimpleName()
+							+ ": " + e.getMessage());
+					break;
+
+				} 
+			} else {
+
+				// execute the new job..
+				this.currentJob.executeJob(this.getThreadName());
+				this.currentJob = null;
+			}
+
+		}
+		return true;
+	}
+
+	@Override
+	protected boolean _postRun() {
+		return true;
+	}
+
+	@Override
+	protected boolean _preRun() {
+		return true;
+	}
+
+	@Override
+	protected void _shutdown() {
+	}
+
+	@Override
+	protected void _startup() {
+		//this.logDirectINFO(this.getThreadName(), "Starting up...");
+	}
+
+	public final int getWorkerId() {
+		return workerId;
+	}
+
+	public final AbstractJob getCurrentJob() {
+		return currentJob;
+	}
+
+	public final boolean hasCurrentJob() {
+        return (currentJob != null);
+	}
+
+	protected void EmergencyStop() {
+		this.runCmd = false;
+		String out = "Stack Trace";
+		for(StackTraceElement e : this.getThisThread().getStackTrace()) {
+			out += " -> " + e.toString();
+		}
+		Logger.info(out);
+		this.getThisThread().interrupt();
+	}
+}