Mirror von
https://github.com/PaperMC/Velocity.git
synchronisiert 2024-11-16 21:10:30 +01:00
Reintroduce sync event execution to the Velocity event system
This required a not-insubstantial number of bug fixes, since the sync support had bit-rotted somewhat. This PR also corrects a number of bugs. Finally. the per-plugin executor services are now used to execute all async event tasks.
Dieser Commit ist enthalten in:
Andrew Steinborn
Ursprung
ffa78d2a92
Commit
4f227badc2
@ -45,10 +45,28 @@ public interface EventManager {
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* @param postOrder the order in which events should be posted to the handler
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* @param handler the handler to register
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* @param <E> the event type to handle
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* @deprecated use {@link #register(Object, Class, short, EventHandler)} instead
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*/
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@Deprecated
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<E> void register(Object plugin, Class<E> eventClass, PostOrder postOrder,
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EventHandler<E> handler);
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/**
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* Requests that the specified {@code handler} listen for events and associate it with the {@code
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* plugin}.
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*
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* <p>Note that this method will register a non-asynchronous listener by default. If you want to
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* use an asynchronous event handler, return {@link EventTask#async(Runnable)} from the handler.</p>
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*
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* @param plugin the plugin to associate with the handler
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* @param eventClass the class for the event handler to register
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* @param postOrder the relative order in which events should be posted to the handler
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* @param handler the handler to register
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* @param <E> the event type to handle
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*/
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<E> void register(Object plugin, Class<E> eventClass, short postOrder,
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EventHandler<E> handler);
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/**
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* Fires the specified event to the event bus asynchronously. This allows Velocity to continue
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* servicing connections while a plugin handles a potentially long-running operation such as a
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@ -12,6 +12,6 @@ package com.velocitypowered.api.event;
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*/
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public enum PostOrder {
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FIRST, EARLY, NORMAL, LATE, LAST
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FIRST, EARLY, NORMAL, LATE, LAST, CUSTOM
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}
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@ -22,24 +22,38 @@ public @interface Subscribe {
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/**
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* The order events will be posted to this listener.
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*
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* @deprecated specify the order using {@link #priority()} instead
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* @return the order
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*/
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@Deprecated
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PostOrder order() default PostOrder.NORMAL;
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/**
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* Whether the handler must be called asynchronously.
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* The priority of this event handler. Priorities are used to determine the order in which event
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* handlers are called. The higher the priority, the earlier the event handler will be called.
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*
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* <p><strong>This option currently has no effect, but in the future it will. In Velocity 3.0.0,
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* all event handlers run asynchronously by default. You are encouraged to determine whether or
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* not to enable it now. This option is being provided as a migration aid.</strong></p>
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* <p>Note that due to compatibility constraints, you must specify {@link PostOrder#CUSTOM}
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* in order to use this field.</p>
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*
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* <p>If this method returns {@code true}, the method is guaranteed to be executed
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* asynchronously. Otherwise, the handler may be executed on the current thread or
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* asynchronously. <strong>This still means you must consider thread-safety in your
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* event listeners</strong> as the "current thread" can and will be different each time.</p>
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* @return the priority
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*/
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short priority() default Short.MIN_VALUE;
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/**
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* Whether the handler must be called asynchronously. By default, all event handlers are called
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* asynchronously.
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*
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* <p>If any method handler targeting an event type is marked with {@code true}, then every
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* handler targeting that event type will be executed asynchronously.</p>
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* <p>For performance (for instance, if you use {@link EventTask#withContinuation}), you can
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* optionally specify <code>false</code>. This option will become {@code false} by default
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* in a future release of Velocity.</p>
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*
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* <p>If this is {@code true}, the method is guaranteed to be executed asynchronously. Otherwise,
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* the handler may be executed on the current thread or asynchronously. <strong>This still means
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* you must consider thread-safety in your event listeners</strong> as the "current thread" can
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* and will be different each time.</p>
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*
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* <p>Note that if any method handler targeting an event type is marked with {@code true}, then
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* every handler targeting that event type will be executed asynchronously.</p>
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*
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* @return Requires async
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*/
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@ -540,7 +540,6 @@ public class VelocityServer implements ProxyServer, ForwardingAudience {
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eventManager.fire(new ProxyShutdownEvent()).join();
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timedOut = !eventManager.shutdown() || timedOut;
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timedOut = !scheduler.shutdown() || timedOut;
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if (timedOut) {
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@ -49,6 +49,8 @@ import java.util.Locale;
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import java.util.Map;
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import java.util.concurrent.CompletableFuture;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.ForkJoinPool;
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import java.util.concurrent.locks.ReadWriteLock;
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import java.util.concurrent.locks.ReentrantReadWriteLock;
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import java.util.stream.Collectors;
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@ -71,6 +73,7 @@ public class VelocityCommandManager implements CommandManager {
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private final SuggestionsProvider<CommandSource> suggestionsProvider;
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private final CommandGraphInjector<CommandSource> injector;
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private final Map<String, CommandMeta> commandMetas;
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private final ExecutorService asyncExecutor;
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/**
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* Constructs a command manager.
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@ -89,6 +92,7 @@ public class VelocityCommandManager implements CommandManager {
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this.suggestionsProvider = new SuggestionsProvider<>(this.dispatcher, this.lock.readLock());
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this.injector = new CommandGraphInjector<>(this.dispatcher, this.lock.readLock());
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this.commandMetas = new ConcurrentHashMap<>();
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this.asyncExecutor = ForkJoinPool.commonPool(); // TODO: remove entirely
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}
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public void setAnnounceProxyCommands(boolean announceProxyCommands) {
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@ -266,7 +270,7 @@ public class VelocityCommandManager implements CommandManager {
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return false;
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}
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return executeImmediately0(source, commandResult.getCommand().orElse(event.getCommand()));
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}, eventManager.getAsyncExecutor());
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}, asyncExecutor);
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}
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@Override
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@ -275,8 +279,7 @@ public class VelocityCommandManager implements CommandManager {
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Preconditions.checkNotNull(source, "source");
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Preconditions.checkNotNull(cmdLine, "cmdLine");
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return CompletableFuture.supplyAsync(
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() -> executeImmediately0(source, cmdLine), eventManager.getAsyncExecutor());
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return CompletableFuture.supplyAsync(() -> executeImmediately0(source, cmdLine), asyncExecutor);
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}
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/**
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@ -25,7 +25,6 @@ import com.google.common.base.VerifyException;
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import com.google.common.collect.ArrayListMultimap;
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import com.google.common.collect.ListMultimap;
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import com.google.common.reflect.TypeToken;
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import com.google.common.util.concurrent.ThreadFactoryBuilder;
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import com.velocitypowered.api.event.Continuation;
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import com.velocitypowered.api.event.EventHandler;
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import com.velocitypowered.api.event.EventManager;
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@ -38,6 +37,7 @@ import com.velocitypowered.api.plugin.PluginManager;
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import com.velocitypowered.proxy.event.UntargetedEventHandler.EventTaskHandler;
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import com.velocitypowered.proxy.event.UntargetedEventHandler.VoidHandler;
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import com.velocitypowered.proxy.event.UntargetedEventHandler.WithContinuationHandler;
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import com.velocitypowered.proxy.util.collect.Enum2IntMap;
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import java.lang.invoke.MethodHandle;
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import java.lang.invoke.MethodHandles;
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import java.lang.invoke.VarHandle;
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@ -55,9 +55,6 @@ import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import java.util.concurrent.CompletableFuture;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.locks.ReadWriteLock;
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import java.util.concurrent.locks.ReentrantReadWriteLock;
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import java.util.function.BiConsumer;
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@ -76,6 +73,14 @@ import org.lanternpowered.lmbda.LambdaType;
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*/
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public class VelocityEventManager implements EventManager {
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private static final Enum2IntMap<PostOrder> POST_ORDER_MAP = new Enum2IntMap.Builder<>(PostOrder.class)
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.put(PostOrder.FIRST, Short.MAX_VALUE - 1)
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.put(PostOrder.EARLY, Short.MAX_VALUE / 2)
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.put(PostOrder.NORMAL, 0)
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.put(PostOrder.LATE, Short.MIN_VALUE / 2)
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.put(PostOrder.LAST, Short.MIN_VALUE + 1)
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.put(PostOrder.CUSTOM, 0)
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.build();
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private static final Logger logger = LogManager.getLogger(VelocityEventManager.class);
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private static final MethodHandles.Lookup methodHandlesLookup = MethodHandles.lookup();
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@ -87,9 +92,8 @@ public class VelocityEventManager implements EventManager {
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LambdaType.of(WithContinuationHandler.class);
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private static final Comparator<HandlerRegistration> handlerComparator =
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Comparator.comparingInt(o -> o.order);
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Collections.reverseOrder(Comparator.comparingInt(o -> o.order));
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private final ExecutorService asyncExecutor;
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private final PluginManager pluginManager;
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private final ListMultimap<Class<?>, HandlerRegistration> handlersByType =
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@ -112,9 +116,6 @@ public class VelocityEventManager implements EventManager {
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*/
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public VelocityEventManager(final PluginManager pluginManager) {
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this.pluginManager = pluginManager;
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this.asyncExecutor = Executors
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.newFixedThreadPool(Runtime.getRuntime().availableProcessors(), new ThreadFactoryBuilder()
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.setNameFormat("Velocity Async Event Executor - #%d").setDaemon(true).build());
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}
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/**
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@ -140,6 +141,7 @@ public class VelocityEventManager implements EventManager {
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final short order;
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final Class<?> eventType;
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final EventHandler<Object> handler;
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final AsyncType asyncType;
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/**
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* The instance of the {@link EventHandler} or the listener instance that was registered.
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@ -147,20 +149,40 @@ public class VelocityEventManager implements EventManager {
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final Object instance;
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public HandlerRegistration(final PluginContainer plugin, final short order,
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final Class<?> eventType, final Object instance, final EventHandler<Object> handler) {
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final Class<?> eventType, final Object instance, final EventHandler<Object> handler,
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final AsyncType asyncType) {
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this.plugin = plugin;
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this.order = order;
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this.eventType = eventType;
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this.instance = instance;
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this.handler = handler;
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this.asyncType = asyncType;
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}
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}
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enum AsyncType {
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/**
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* The event will never run async, everything is handled on the netty thread.
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*/
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NEVER,
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/**
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* The event will initially start on the thread calling the {@code fire} method, and possibly
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* switch over to an async thread.
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*/
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SOMETIMES,
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/**
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* The complete event will be handled on an async thread.
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*/
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ALWAYS
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}
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static final class HandlersCache {
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final AsyncType asyncType;
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final HandlerRegistration[] handlers;
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HandlersCache(final HandlerRegistration[] handlers) {
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HandlersCache(AsyncType asyncType, final HandlerRegistration[] handlers) {
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this.asyncType = asyncType;
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this.handlers = handlers;
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}
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}
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@ -183,7 +205,15 @@ public class VelocityEventManager implements EventManager {
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}
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baked.sort(handlerComparator);
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return new HandlersCache(baked.toArray(new HandlerRegistration[0]));
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AsyncType asyncType = AsyncType.NEVER;
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for (HandlerRegistration registration : baked) {
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if (registration.asyncType.compareTo(asyncType) > 0) {
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asyncType = registration.asyncType;
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}
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}
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return new HandlersCache(asyncType, baked.toArray(new HandlerRegistration[0]));
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}
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/**
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@ -219,15 +249,17 @@ public class VelocityEventManager implements EventManager {
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static final class MethodHandlerInfo {
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final Method method;
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final AsyncType asyncType;
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final @Nullable Class<?> eventType;
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final short order;
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final @Nullable String errors;
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final @Nullable Class<?> continuationType;
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private MethodHandlerInfo(final Method method, final @Nullable Class<?> eventType,
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final short order, final @Nullable String errors,
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private MethodHandlerInfo(final Method method, final AsyncType asyncType,
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final @Nullable Class<?> eventType, final short order, final @Nullable String errors,
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final @Nullable Class<?> continuationType) {
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this.method = method;
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this.asyncType = asyncType;
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this.eventType = eventType;
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this.order = order;
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this.errors = errors;
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@ -291,17 +323,41 @@ public class VelocityEventManager implements EventManager {
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}
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}
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}
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if (handlerAdapter == null) {
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AsyncType asyncType = AsyncType.NEVER;
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final Class<?> returnType = method.getReturnType();
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if (handlerAdapter == null) {
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if (returnType != void.class && continuationType == Continuation.class) {
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errors.add("method return type must be void if a continuation parameter is provided");
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} else if (returnType != void.class && returnType != EventTask.class) {
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errors.add("method return type must be void or EventTask");
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errors.add("method return type must be void, AsyncTask, "
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+ "EventTask.Basic or EventTask.WithContinuation");
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} else if (returnType == EventTask.class) {
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// technically, for compatibility, we *should* assume that the method must be invoked
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// async, however, from examining some publicly-available plugins, developers did
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// generally follow the contract and returned an EventTask only if they wanted this
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// behavior. enable it for them.
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asyncType = AsyncType.SOMETIMES;
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}
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} else {
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// for custom handlers, we always expect a return type of EventTask. this feature appears
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// to have not been used in the wild AFAIK, so it gets the new behavior by default
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asyncType = AsyncType.SOMETIMES;
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}
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if (paramCount == 1 && returnType == void.class && subscribe.async()) {
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// these are almost always a dead giveaway of a plugin that will need its handlers
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// run async, so unless we're told otherwise, we'll assume that's the case
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asyncType = AsyncType.ALWAYS;
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}
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final short order;
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if (subscribe.order() == PostOrder.CUSTOM) {
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order = subscribe.priority();
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} else {
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order = (short) POST_ORDER_MAP.get(subscribe.order());
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}
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final short order = (short) subscribe.order().ordinal();
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final String errorsJoined = errors.isEmpty() ? null : String.join(",", errors);
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collected.put(key, new MethodHandlerInfo(method, eventType, order, errorsJoined,
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collected.put(key, new MethodHandlerInfo(method, asyncType, eventType, order, errorsJoined,
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continuationType));
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}
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final Class<?> superclass = targetClass.getSuperclass();
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@ -340,12 +396,29 @@ public class VelocityEventManager implements EventManager {
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@SuppressWarnings("unchecked")
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public <E> void register(final Object plugin, final Class<E> eventClass,
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final PostOrder order, final EventHandler<E> handler) {
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if (order == PostOrder.CUSTOM) {
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throw new IllegalArgumentException(
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"This method does not support custom post orders. Use the overload with short instead."
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);
|
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}
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register(plugin, eventClass, (short) POST_ORDER_MAP.get(order), handler, AsyncType.ALWAYS);
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}
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@Override
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public <E> void register(Object plugin, Class<E> eventClass, short postOrder,
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EventHandler<E> handler) {
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register(plugin, eventClass, postOrder, handler, AsyncType.SOMETIMES);
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}
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private <E> void register(Object plugin, Class<E> eventClass, short postOrder,
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EventHandler<E> handler, AsyncType asyncType) {
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final PluginContainer pluginContainer = pluginManager.ensurePluginContainer(plugin);
|
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requireNonNull(eventClass, "eventClass");
|
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requireNonNull(handler, "handler");
|
||||
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final HandlerRegistration registration = new HandlerRegistration(pluginContainer,
|
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(short) order.ordinal(), eventClass, handler, (EventHandler<Object>) handler);
|
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postOrder, eventClass, handler, (EventHandler<Object>) handler,
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AsyncType.ALWAYS);
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register(Collections.singletonList(registration));
|
||||
}
|
||||
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@ -375,7 +448,7 @@ public class VelocityEventManager implements EventManager {
|
||||
|
||||
final EventHandler<Object> handler = untargetedHandler.buildHandler(listener);
|
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registrations.add(new HandlerRegistration(pluginContainer, info.order,
|
||||
info.eventType, listener, handler));
|
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info.eventType, listener, handler, info.asyncType));
|
||||
}
|
||||
|
||||
register(registrations);
|
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@ -462,10 +535,13 @@ public class VelocityEventManager implements EventManager {
|
||||
|
||||
private <E> void fire(final @Nullable CompletableFuture<E> future,
|
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final E event, final HandlersCache handlersCache) {
|
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// In Velocity 1.1.0, all events were fired asynchronously. As Velocity 3.0.0 is intended to be
|
||||
// largely (albeit not 100%) compatible with 1.1.x, we also fire events async. This behavior
|
||||
// will go away in Velocity Polymer.
|
||||
asyncExecutor.execute(() -> fire(future, event, 0, true, handlersCache.handlers));
|
||||
final HandlerRegistration registration = handlersCache.handlers[0];
|
||||
if (registration.asyncType == AsyncType.ALWAYS) {
|
||||
registration.plugin.getExecutorService().execute(
|
||||
() -> fire(future, event, 0, true, handlersCache.handlers));
|
||||
} else {
|
||||
fire(future, event, 0, false, handlersCache.handlers);
|
||||
}
|
||||
}
|
||||
|
||||
private static final int TASK_STATE_DEFAULT = 0;
|
||||
@ -494,6 +570,7 @@ public class VelocityEventManager implements EventManager {
|
||||
private final @Nullable CompletableFuture<E> future;
|
||||
private final boolean currentlyAsync;
|
||||
private final E event;
|
||||
private final Thread firedOnThread;
|
||||
|
||||
// This field is modified via a VarHandle, so this field is used and cannot be final.
|
||||
@SuppressWarnings({"UnusedVariable", "FieldMayBeFinal", "FieldCanBeLocal"})
|
||||
@ -516,6 +593,7 @@ public class VelocityEventManager implements EventManager {
|
||||
this.event = event;
|
||||
this.index = index;
|
||||
this.currentlyAsync = currentlyAsync;
|
||||
this.firedOnThread = Thread.currentThread();
|
||||
}
|
||||
|
||||
@Override
|
||||
@ -526,8 +604,8 @@ public class VelocityEventManager implements EventManager {
|
||||
}
|
||||
|
||||
/**
|
||||
* Executes the task and returns whether the next one should be executed immediately after this
|
||||
* one without scheduling.
|
||||
* Executes the task and returns whether the next handler should be executed immediately
|
||||
* after this one, without additional scheduling.
|
||||
*/
|
||||
boolean execute() {
|
||||
state = TASK_STATE_EXECUTING;
|
||||
@ -569,7 +647,18 @@ public class VelocityEventManager implements EventManager {
|
||||
}
|
||||
if (!CONTINUATION_TASK_STATE.compareAndSet(
|
||||
this, TASK_STATE_EXECUTING, TASK_STATE_CONTINUE_IMMEDIATELY)) {
|
||||
asyncExecutor.execute(() -> fire(future, event, index + 1, true, registrations));
|
||||
// We established earlier that registrations[index + 1] is a valid index.
|
||||
// If we are remaining in the same thread for the next handler, fire
|
||||
// the next event immediately, else fire it within the executor service
|
||||
// of the plugin with the next handler.
|
||||
final HandlerRegistration next = registrations[index + 1];
|
||||
final Thread currentThread = Thread.currentThread();
|
||||
if (currentThread == firedOnThread && next.asyncType != AsyncType.ALWAYS) {
|
||||
fire(future, event, index + 1, currentlyAsync, registrations);
|
||||
} else {
|
||||
next.plugin.getExecutorService().execute(() ->
|
||||
fire(future, event, index + 1, true, registrations));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -595,7 +684,7 @@ public class VelocityEventManager implements EventManager {
|
||||
continue;
|
||||
}
|
||||
} else {
|
||||
asyncExecutor.execute(continuationTask);
|
||||
registration.plugin.getExecutorService().execute(continuationTask);
|
||||
}
|
||||
// fire will continue in another thread once the async task is
|
||||
// executed and the continuation is resumed
|
||||
@ -615,13 +704,4 @@ public class VelocityEventManager implements EventManager {
|
||||
logger.error("Couldn't pass {} to {} {}", registration.eventType.getSimpleName(),
|
||||
pluginDescription.getId(), pluginDescription.getVersion().orElse(""), t);
|
||||
}
|
||||
|
||||
public boolean shutdown() throws InterruptedException {
|
||||
asyncExecutor.shutdown();
|
||||
return asyncExecutor.awaitTermination(10, TimeUnit.SECONDS);
|
||||
}
|
||||
|
||||
public ExecutorService getAsyncExecutor() {
|
||||
return asyncExecutor;
|
||||
}
|
||||
}
|
||||
@ -31,7 +31,6 @@ import com.velocitypowered.proxy.event.MockEventManager;
|
||||
import com.velocitypowered.proxy.event.VelocityEventManager;
|
||||
import java.util.Arrays;
|
||||
import java.util.Collection;
|
||||
import org.junit.jupiter.api.AfterAll;
|
||||
import org.junit.jupiter.api.BeforeAll;
|
||||
import org.junit.jupiter.api.BeforeEach;
|
||||
|
||||
@ -47,16 +46,6 @@ abstract class CommandTestSuite {
|
||||
eventManager = new MockEventManager();
|
||||
}
|
||||
|
||||
@AfterAll
|
||||
static void afterAll() {
|
||||
try {
|
||||
eventManager.shutdown();
|
||||
eventManager = null;
|
||||
} catch (final InterruptedException e) {
|
||||
Thread.currentThread().interrupt();
|
||||
}
|
||||
}
|
||||
|
||||
@BeforeEach
|
||||
void setUp() {
|
||||
this.manager = new VelocityCommandManager(eventManager);
|
||||
|
||||
@ -41,20 +41,24 @@ import org.junit.jupiter.api.TestInstance;
|
||||
public class EventTest {
|
||||
|
||||
public static final String CONTINUATION_TEST_THREAD_NAME = "Continuation test thread";
|
||||
private final VelocityEventManager eventManager =
|
||||
new VelocityEventManager(new FakePluginManager());
|
||||
private final FakePluginManager pluginManager = new FakePluginManager();
|
||||
private final VelocityEventManager eventManager = new VelocityEventManager(pluginManager);
|
||||
|
||||
@AfterAll
|
||||
void shutdown() throws Exception {
|
||||
eventManager.shutdown();
|
||||
pluginManager.shutdown();
|
||||
}
|
||||
|
||||
static final class TestEvent {
|
||||
|
||||
}
|
||||
|
||||
static void assertSyncThread(final Thread thread) {
|
||||
assertEquals(Thread.currentThread(), thread);
|
||||
}
|
||||
|
||||
static void assertAsyncThread(final Thread thread) {
|
||||
assertTrue(thread.getName().contains("Velocity Async Event Executor"));
|
||||
assertTrue(thread.getName().contains("Test Async Thread"));
|
||||
}
|
||||
|
||||
static void assertContinuationThread(final Thread thread) {
|
||||
@ -90,6 +94,7 @@ public class EventTest {
|
||||
eventManager.fire(new TestEvent()).get();
|
||||
} finally {
|
||||
eventManager.unregisterListeners(FakePluginManager.PLUGIN_A);
|
||||
eventManager.unregisterListeners(FakePluginManager.PLUGIN_B);
|
||||
}
|
||||
|
||||
// Check that the order is A < B < C.
|
||||
@ -119,6 +124,7 @@ public class EventTest {
|
||||
eventManager.fire(new TestEvent()).get();
|
||||
} finally {
|
||||
eventManager.unregisterListeners(FakePluginManager.PLUGIN_A);
|
||||
eventManager.unregisterListeners(FakePluginManager.PLUGIN_B);
|
||||
}
|
||||
|
||||
// Check that the order is A < B < C.
|
||||
@ -126,6 +132,26 @@ public class EventTest {
|
||||
assertTrue(listener2Invoked.get() < listener3Invoked.get(), "Listener C invoked before B!");
|
||||
}
|
||||
|
||||
@Test
|
||||
void testAlwaysSync() throws Exception {
|
||||
final AlwaysSyncListener listener = new AlwaysSyncListener();
|
||||
handleMethodListener(listener);
|
||||
assertSyncThread(listener.thread);
|
||||
assertEquals(1, listener.result);
|
||||
}
|
||||
|
||||
static final class AlwaysSyncListener {
|
||||
|
||||
@MonotonicNonNull Thread thread;
|
||||
int result;
|
||||
|
||||
@Subscribe(async = false)
|
||||
void sync(TestEvent event) {
|
||||
result++;
|
||||
thread = Thread.currentThread();
|
||||
}
|
||||
}
|
||||
|
||||
@Test
|
||||
void testAlwaysAsync() throws Exception {
|
||||
final AlwaysAsyncListener listener = new AlwaysAsyncListener();
|
||||
@ -143,7 +169,7 @@ public class EventTest {
|
||||
@MonotonicNonNull Thread threadC;
|
||||
int result;
|
||||
|
||||
@Subscribe
|
||||
@Subscribe(async = true, order = PostOrder.EARLY)
|
||||
void firstAsync(TestEvent event) {
|
||||
result++;
|
||||
threadA = Thread.currentThread();
|
||||
@ -155,50 +181,93 @@ public class EventTest {
|
||||
return EventTask.async(() -> result++);
|
||||
}
|
||||
|
||||
@Subscribe
|
||||
@Subscribe(order = PostOrder.LATE)
|
||||
void thirdAsync(TestEvent event) {
|
||||
result++;
|
||||
threadC = Thread.currentThread();
|
||||
}
|
||||
}
|
||||
|
||||
@Test
|
||||
void testSometimesAsync() throws Exception {
|
||||
final SometimesAsyncListener listener = new SometimesAsyncListener();
|
||||
handleMethodListener(listener);
|
||||
assertSyncThread(listener.threadA);
|
||||
assertSyncThread(listener.threadB);
|
||||
assertAsyncThread(listener.threadC);
|
||||
assertAsyncThread(listener.threadD);
|
||||
assertEquals(3, listener.result);
|
||||
}
|
||||
|
||||
static final class SometimesAsyncListener {
|
||||
|
||||
@MonotonicNonNull Thread threadA;
|
||||
@MonotonicNonNull Thread threadB;
|
||||
@MonotonicNonNull Thread threadC;
|
||||
@MonotonicNonNull Thread threadD;
|
||||
int result;
|
||||
|
||||
@Subscribe(order = PostOrder.EARLY, async = false)
|
||||
void notAsync(TestEvent event) {
|
||||
result++;
|
||||
threadA = Thread.currentThread();
|
||||
}
|
||||
|
||||
@Subscribe
|
||||
EventTask notAsyncUntilTask(TestEvent event) {
|
||||
threadB = Thread.currentThread();
|
||||
return EventTask.async(() -> {
|
||||
threadC = Thread.currentThread();
|
||||
result++;
|
||||
});
|
||||
}
|
||||
|
||||
@Subscribe(order = PostOrder.LATE, async = false)
|
||||
void stillAsyncAfterTask(TestEvent event) {
|
||||
threadD = Thread.currentThread();
|
||||
result++;
|
||||
}
|
||||
}
|
||||
|
||||
@Test
|
||||
void testContinuation() throws Exception {
|
||||
final ContinuationListener listener = new ContinuationListener();
|
||||
handleMethodListener(listener);
|
||||
assertAsyncThread(listener.thread1);
|
||||
assertAsyncThread(listener.thread2);
|
||||
assertContinuationThread(listener.thread2Custom);
|
||||
assertAsyncThread(listener.thread3);
|
||||
assertSyncThread(listener.threadA);
|
||||
assertSyncThread(listener.threadB);
|
||||
assertAsyncThread(listener.threadC);
|
||||
assertEquals(2, listener.value.get());
|
||||
}
|
||||
|
||||
static final class ContinuationListener {
|
||||
|
||||
@MonotonicNonNull Thread thread1;
|
||||
@MonotonicNonNull Thread thread2;
|
||||
@MonotonicNonNull Thread thread2Custom;
|
||||
@MonotonicNonNull Thread thread3;
|
||||
@MonotonicNonNull Thread threadA;
|
||||
@MonotonicNonNull Thread threadB;
|
||||
@MonotonicNonNull Thread threadC;
|
||||
|
||||
final AtomicInteger value = new AtomicInteger();
|
||||
|
||||
@Subscribe(order = PostOrder.EARLY)
|
||||
EventTask continuation(TestEvent event) {
|
||||
thread1 = Thread.currentThread();
|
||||
threadA = Thread.currentThread();
|
||||
return EventTask.withContinuation(continuation -> {
|
||||
value.incrementAndGet();
|
||||
thread2 = Thread.currentThread();
|
||||
threadB = Thread.currentThread();
|
||||
new Thread(() -> {
|
||||
thread2Custom = Thread.currentThread();
|
||||
try {
|
||||
Thread.sleep(100);
|
||||
} catch (InterruptedException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
value.incrementAndGet();
|
||||
continuation.resume();
|
||||
}, CONTINUATION_TEST_THREAD_NAME).start();
|
||||
}).start();
|
||||
});
|
||||
}
|
||||
|
||||
@Subscribe(order = PostOrder.LATE)
|
||||
void afterContinuation(TestEvent event) {
|
||||
thread3 = Thread.currentThread();
|
||||
threadC = Thread.currentThread();
|
||||
}
|
||||
}
|
||||
|
||||
@ -207,9 +276,9 @@ public class EventTest {
|
||||
final ResumeContinuationImmediatelyListener listener =
|
||||
new ResumeContinuationImmediatelyListener();
|
||||
handleMethodListener(listener);
|
||||
assertAsyncThread(listener.threadA);
|
||||
assertAsyncThread(listener.threadB);
|
||||
assertAsyncThread(listener.threadC);
|
||||
assertSyncThread(listener.threadA);
|
||||
assertSyncThread(listener.threadB);
|
||||
assertSyncThread(listener.threadC);
|
||||
assertEquals(2, listener.result);
|
||||
}
|
||||
|
||||
@ -241,42 +310,44 @@ public class EventTest {
|
||||
void testContinuationParameter() throws Exception {
|
||||
final ContinuationParameterListener listener = new ContinuationParameterListener();
|
||||
handleMethodListener(listener);
|
||||
assertAsyncThread(listener.thread1);
|
||||
assertAsyncThread(listener.thread2);
|
||||
assertContinuationThread(listener.thread2Custom);
|
||||
assertAsyncThread(listener.thread3);
|
||||
assertSyncThread(listener.threadA);
|
||||
assertSyncThread(listener.threadB);
|
||||
assertAsyncThread(listener.threadC);
|
||||
assertEquals(3, listener.result.get());
|
||||
}
|
||||
|
||||
static final class ContinuationParameterListener {
|
||||
|
||||
@MonotonicNonNull Thread thread1;
|
||||
@MonotonicNonNull Thread thread2;
|
||||
@MonotonicNonNull Thread thread2Custom;
|
||||
@MonotonicNonNull Thread thread3;
|
||||
@MonotonicNonNull Thread threadA;
|
||||
@MonotonicNonNull Thread threadB;
|
||||
@MonotonicNonNull Thread threadC;
|
||||
|
||||
final AtomicInteger result = new AtomicInteger();
|
||||
|
||||
@Subscribe
|
||||
void resume(TestEvent event, Continuation continuation) {
|
||||
thread1 = Thread.currentThread();
|
||||
threadA = Thread.currentThread();
|
||||
result.incrementAndGet();
|
||||
continuation.resume();
|
||||
}
|
||||
|
||||
@Subscribe(order = PostOrder.LATE)
|
||||
void resumeFromCustomThread(TestEvent event, Continuation continuation) {
|
||||
thread2 = Thread.currentThread();
|
||||
threadB = Thread.currentThread();
|
||||
new Thread(() -> {
|
||||
thread2Custom = Thread.currentThread();
|
||||
try {
|
||||
Thread.sleep(100);
|
||||
} catch (InterruptedException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
result.incrementAndGet();
|
||||
continuation.resume();
|
||||
}, CONTINUATION_TEST_THREAD_NAME).start();
|
||||
}).start();
|
||||
}
|
||||
|
||||
@Subscribe(order = PostOrder.LAST)
|
||||
void afterCustomThread(TestEvent event, Continuation continuation) {
|
||||
thread3 = Thread.currentThread();
|
||||
threadC = Thread.currentThread();
|
||||
result.incrementAndGet();
|
||||
continuation.resume();
|
||||
}
|
||||
@ -328,8 +399,7 @@ public class EventTest {
|
||||
+ "the second is the fancy continuation");
|
||||
}
|
||||
},
|
||||
new TypeToken<TriConsumer<Object, Object, FancyContinuation>>() {
|
||||
},
|
||||
new TypeToken<TriConsumer<Object, Object, FancyContinuation>>() {},
|
||||
invokeFunction -> (instance, event) ->
|
||||
EventTask.withContinuation(continuation ->
|
||||
invokeFunction.accept(instance, event, new FancyContinuationImpl(continuation))
|
||||
|
||||
@ -18,6 +18,7 @@
|
||||
package com.velocitypowered.proxy.testutil;
|
||||
|
||||
import com.google.common.collect.ImmutableList;
|
||||
import com.google.common.util.concurrent.ThreadFactoryBuilder;
|
||||
import com.velocitypowered.api.plugin.PluginContainer;
|
||||
import com.velocitypowered.api.plugin.PluginDescription;
|
||||
import com.velocitypowered.api.plugin.PluginManager;
|
||||
@ -25,7 +26,7 @@ import java.nio.file.Path;
|
||||
import java.util.Collection;
|
||||
import java.util.Optional;
|
||||
import java.util.concurrent.ExecutorService;
|
||||
import java.util.concurrent.ForkJoinPool;
|
||||
import java.util.concurrent.Executors;
|
||||
import org.checkerframework.checker.nullness.qual.NonNull;
|
||||
|
||||
/**
|
||||
@ -36,15 +37,19 @@ public class FakePluginManager implements PluginManager {
|
||||
public static final Object PLUGIN_A = new Object();
|
||||
public static final Object PLUGIN_B = new Object();
|
||||
|
||||
private static final PluginContainer PC_A = new FakePluginContainer("a", PLUGIN_A);
|
||||
private static final PluginContainer PC_B = new FakePluginContainer("b", PLUGIN_B);
|
||||
private final PluginContainer containerA = new FakePluginContainer("a", PLUGIN_A);
|
||||
private final PluginContainer containerB = new FakePluginContainer("b", PLUGIN_B);
|
||||
|
||||
private ExecutorService service = Executors.newCachedThreadPool(
|
||||
new ThreadFactoryBuilder().setNameFormat("Test Async Thread").setDaemon(true).build()
|
||||
);
|
||||
|
||||
@Override
|
||||
public @NonNull Optional<PluginContainer> fromInstance(@NonNull Object instance) {
|
||||
if (instance == PLUGIN_A) {
|
||||
return Optional.of(PC_A);
|
||||
return Optional.of(containerA);
|
||||
} else if (instance == PLUGIN_B) {
|
||||
return Optional.of(PC_B);
|
||||
return Optional.of(containerB);
|
||||
} else {
|
||||
return Optional.empty();
|
||||
}
|
||||
@ -54,9 +59,9 @@ public class FakePluginManager implements PluginManager {
|
||||
public @NonNull Optional<PluginContainer> getPlugin(@NonNull String id) {
|
||||
switch (id) {
|
||||
case "a":
|
||||
return Optional.of(PC_A);
|
||||
return Optional.of(containerA);
|
||||
case "b":
|
||||
return Optional.of(PC_B);
|
||||
return Optional.of(containerB);
|
||||
default:
|
||||
return Optional.empty();
|
||||
}
|
||||
@ -64,7 +69,7 @@ public class FakePluginManager implements PluginManager {
|
||||
|
||||
@Override
|
||||
public @NonNull Collection<PluginContainer> getPlugins() {
|
||||
return ImmutableList.of(PC_A, PC_B);
|
||||
return ImmutableList.of(containerA, containerB);
|
||||
}
|
||||
|
||||
@Override
|
||||
@ -77,16 +82,18 @@ public class FakePluginManager implements PluginManager {
|
||||
throw new UnsupportedOperationException();
|
||||
}
|
||||
|
||||
private static class FakePluginContainer implements PluginContainer {
|
||||
public void shutdown() {
|
||||
this.service.shutdownNow();
|
||||
}
|
||||
|
||||
private class FakePluginContainer implements PluginContainer {
|
||||
|
||||
private final String id;
|
||||
private final Object instance;
|
||||
private final ExecutorService service;
|
||||
|
||||
private FakePluginContainer(String id, Object instance) {
|
||||
this.id = id;
|
||||
this.instance = instance;
|
||||
this.service = ForkJoinPool.commonPool();
|
||||
}
|
||||
|
||||
@Override
|
||||
|
||||
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