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Warn plugins that never call start/syncStart on AsyncListenerHandler.

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This is almost always incorrect as it will simply block the 
transmission or reception of every packet of a given type.
This commit is contained in:
Kristian S. Stangeland 2014-07-28 01:16:23 +02:00
parent ba88d292c0
commit 4bd9a1f01e
1 changed files with 41 additions and 1 deletions
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42
ProtocolLib/src/main/java/com/comphenix/protocol/async/AsyncListenerHandler.java
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@ -26,13 +26,16 @@ import java.util.concurrent.atomic.AtomicInteger;
import org.bukkit.plugin.Plugin;
import com.comphenix.protocol.ProtocolLibrary;
import com.comphenix.protocol.error.Report;
import com.comphenix.protocol.error.ReportType;
import com.comphenix.protocol.events.ListeningWhitelist;
import com.comphenix.protocol.events.PacketAdapter;
import com.comphenix.protocol.events.PacketEvent;
import com.comphenix.protocol.events.PacketListener;
import com.comphenix.protocol.timing.TimedListenerManager;
import com.comphenix.protocol.timing.TimedTracker;
import com.comphenix.protocol.timing.TimedListenerManager.ListenerType;
import com.comphenix.protocol.timing.TimedTracker;
import com.comphenix.protocol.utility.WrappedScheduler;
import com.google.common.base.Function;
import com.google.common.base.Joiner;
@ -44,6 +47,8 @@ import com.google.common.base.Joiner;
* @author Kristian
*/
public class AsyncListenerHandler {
public static final ReportType REPORT_HANDLER_NOT_STARTED = new ReportType(
"Plugin %s did not start the asynchronous handler %s by calling start() or syncStart().");
/**
* Signal an end to packet processing.
@ -55,6 +60,11 @@ public class AsyncListenerHandler {
*/
private static final PacketEvent WAKEUP_PACKET = new PacketEvent(new Object());
/**
* The expected number of ticks per second.
*/
private static final int TICKS_PER_SECOND = 20;
// Unique worker ID
private static final AtomicInteger nextID = new AtomicInteger();
@ -87,6 +97,9 @@ public class AsyncListenerHandler {
// Minecraft main thread
private Thread mainThread;
// Warn plugins that the async listener handler must be started
private int warningTask;
// Timing manager
private TimedListenerManager timedManager = TimedListenerManager.getInstance();
@ -105,6 +118,30 @@ public class AsyncListenerHandler {
this.mainThread = mainThread;
this.filterManager = filterManager;
this.listener = listener;
startWarningTask();
}
private void startWarningTask() {
warningTask = filterManager.getScheduler().scheduleSyncDelayedTask(getPlugin(), new Runnable() {
@Override
public void run() {
ProtocolLibrary.getErrorReporter().reportWarning(AsyncListenerHandler.this, Report.
newBuilder(REPORT_HANDLER_NOT_STARTED).
messageParam(listener.getPlugin(), AsyncListenerHandler.this).
build()
);
}
}, 2 * TICKS_PER_SECOND);
}
private void stopWarningTask() {
int taskId = warningTask;
// Ensure we have a task to cancel
if (warningTask >= 0) {
filterManager.getScheduler().cancelTask(taskId);
warningTask = -1;
}
}
/**
@ -249,6 +286,7 @@ public class AsyncListenerHandler {
final AsyncRunnable listenerLoop = getListenerLoop();
stopWarningTask();
scheduleAsync(new Runnable() {
@Override
public void run() {
@ -384,6 +422,8 @@ public class AsyncListenerHandler {
final int workerID = nextID.incrementAndGet();
if (syncTask < 0) {
stopWarningTask();
syncTask = filterManager.getScheduler().scheduleSyncRepeatingTask(getPlugin(), new Runnable() {
@Override
public void run() {