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Correctly queue edits

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Synchronising on the LocalSession ends up being dangerous as it's a craftbukkit thread, leading to blocking issues if something goes wrong in an edit, made worse by the fact craftbukkit threads like to interfere with each other sometimes, and also cause OOMs and hanging when there are too many of them.
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dordsor21 2020-10-08 10:53:57 +01:00
parent a64a1ab09e
commit 2c27b9c02a
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GPG Key ID: 1E53E88969FFCF0B
4 changed files with 10 additions and 11 deletions
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4
worldedit-core/src/main/java/com/sk89q/worldedit/extension/platform/AbstractPlayerActor.java
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@ -79,8 +79,8 @@ public abstract class AbstractPlayerActor implements Actor, Player, Cloneable {
private final Map<String, Object> meta;
// Queue for async tasks
private AtomicInteger runningCount = new AtomicInteger();
private AsyncNotifyQueue asyncNotifyQueue = new AsyncNotifyQueue(
private final AtomicInteger runningCount = new AtomicInteger();
private final AsyncNotifyQueue asyncNotifyQueue = new AsyncNotifyQueue(
(thread, throwable) -> {
while (throwable.getCause() != null) {
throwable = throwable.getCause();

8
worldedit-core/src/main/java/com/sk89q/worldedit/extension/platform/Actor.java
View File

@ -189,12 +189,12 @@ public interface Actor extends Identifiable, SessionOwner, Subject, MapMetadatab
*/
default boolean confirm() {
InterruptableCondition confirm = deleteMeta("cmdConfirm");
if (confirm != null) {
confirm.signal();;
return true;
}
if (confirm == null) {
return false;
}
queueAction(confirm::signal);
return true;
}
/**
* Queue an action to run async.

5
worldedit-core/src/main/java/com/sk89q/worldedit/extension/platform/PlatformCommandManager.java
View File

@ -649,13 +649,12 @@ public final class PlatformCommandManager {
} else {
actor.decline();
}
LocalSession session = worldEdit.getSessionManager().get(actor);
synchronized (session) {
actor.runAction(() -> {
SessionKey key = actor.getSessionKey();
if (key.isActive()) {
PlatformCommandManager.this.handleCommandOnCurrentThread(event);
}
}
}, false, true);
}, Fawe.isMainThread());
}