No longer expose Thread-binding to Task API

src/lwjgl/java/net/minestom/server/map/framebuffers/GLFWCapableBuffer.java

@@ -4,6 +4,7 @@ import net.minestom.server.MinecraftServer;
 import net.minestom.server.map.Framebuffer;
 import net.minestom.server.map.MapColors;
 import net.minestom.server.timer.Task;
+import net.minestom.server.utils.thread.ThreadBindingExecutor;
 import org.lwjgl.BufferUtils;
 import org.lwjgl.PointerBuffer;
 import org.lwjgl.glfw.GLFWErrorCallback;
@@ -27,6 +28,8 @@ public abstract class GLFWCapableBuffer {
     private final ByteBuffer colorsBuffer;
     private boolean onlyMapColors;
 
+    private static ThreadBindingExecutor threadBindingPool;
+
     protected GLFWCapableBuffer(int width, int height) {
         this(width, height, GLFW_NATIVE_CONTEXT_API, GLFW_OPENGL_API);
     }
@@ -60,6 +63,12 @@ public abstract class GLFWCapableBuffer {
                 throw new RuntimeException("("+errcode+") Failed to create GLFW Window.");
             }
         }
+
+        synchronized(GLFWCapableBuffer.class) {
+            if(threadBindingPool == null) {
+                threadBindingPool = new ThreadBindingExecutor(MinecraftServer.THREAD_COUNT_SCHEDULER, MinecraftServer.THREAD_NAME_SCHEDULER);
+            }
+        }
     }
 
     public GLFWCapableBuffer unbindContextFromThread() {
@@ -81,17 +90,19 @@ public abstract class GLFWCapableBuffer {
         return MinecraftServer.getSchedulerManager()
                 .buildTask(new Runnable() {
                     private boolean first = true;
-
-                    @Override
-                    public void run() {
+                    private final Runnable subAction = () -> {
                         if(first) {
                             changeRenderingThreadToCurrent();
                             first = false;
                         }
                         render(rendering);
+                    };
+
+                    @Override
+                    public void run() {
+                        threadBindingPool.execute(subAction);
                     }
                 })
-                .bindToSingleThread()
                 .repeat(period)
                 .schedule();
     }

src/main/java/net/minestom/server/timer/SchedulerManager.java

@@ -36,8 +36,6 @@ public final class SchedulerManager implements IExtensionObserver {
     private final AtomicInteger shutdownCounter;
     //A threaded execution
     private final ExecutorService batchesPool;
-    //Thread execution, which always uses the same Thread for a given Task
-    private final ExecutorService threadBindingPool;
     // A single threaded scheduled execution
     private final ScheduledExecutorService timerExecutionService;
     // All the registered tasks (task id = task)
@@ -69,7 +67,6 @@ public final class SchedulerManager implements IExtensionObserver {
         this.shutdownCounter = new AtomicInteger();
 
         this.batchesPool = new MinestomThread(MinecraftServer.THREAD_COUNT_SCHEDULER, MinecraftServer.THREAD_NAME_SCHEDULER);
-        this.threadBindingPool = new ThreadBindingExecutor(MinecraftServer.THREAD_COUNT_SCHEDULER, MinecraftServer.THREAD_NAME_SCHEDULER);
         this.timerExecutionService = Executors.newSingleThreadScheduledExecutor();
         this.tasks = new Int2ObjectOpenHashMap<>();
         this.shutdownTasks = new Int2ObjectOpenHashMap<>();
@@ -196,17 +193,6 @@ public final class SchedulerManager implements IExtensionObserver {
         return batchesPool;
     }
 
-    /**
-     * Gets the execution service for all the registered {@link Task}, which are marked as thread-bound.
-     * The thread to which tasks are assigned depends on their runnable hashcode. Two (or more) tasks can be bound to the same Thread.
-     *
-     * @return the execution service for all the registered {@link Task}, which are marked as thread-bound
-     */
-    @NotNull
-    public ExecutorService getThreadBindingPool() {
-        return threadBindingPool;
-    }
-
     /**
      * Gets the scheduled execution service for all the registered {@link Task}.
      *

src/main/java/net/minestom/server/timer/Task.java

@@ -45,10 +45,6 @@ public class Task implements Runnable {
     private volatile Thread currentThreadTask;
     // The executor service used for this task
     private final ExecutorService executorService;
-    // Whether this task will always execute on the same thread
-    private final boolean boundToSingleThread;
-    // Action executed on the executor. Stored inside the Task to avoid changing the hashcode (which ThreadBindingExecutor relies on)
-    private final Runnable action;
 
     /**
      * Creates a task.
@@ -58,21 +54,25 @@ public class Task implements Runnable {
      * @param shutdown         Defines whether the task is a shutdown task
      * @param delay            The time to delay
      * @param repeat           The time until the repetition
-     * @param bindToSingleThread Whether to run the given task always on the same thread.
      */
-    public Task(@NotNull SchedulerManager schedulerManager, @NotNull Runnable runnable, boolean shutdown, long delay, long repeat, boolean isTransient, @Nullable String owningExtension, boolean bindToSingleThread) {
+    public Task(@NotNull SchedulerManager schedulerManager, @NotNull Runnable runnable, boolean shutdown, long delay, long repeat, boolean isTransient, @Nullable String owningExtension) {
         this.schedulerManager = schedulerManager;
         this.runnable = runnable;
         this.shutdown = shutdown;
         this.id = shutdown ? this.schedulerManager.getShutdownCounterIdentifier() : this.schedulerManager.getCounterIdentifier();
-        this.executorService = bindToSingleThread ? this.schedulerManager.getThreadBindingPool() : this.schedulerManager.getBatchesPool();
+        this.executorService = this.schedulerManager.getBatchesPool();
         this.delay = delay;
         this.repeat = repeat;
         this.isTransient = isTransient;
-        this.boundToSingleThread = bindToSingleThread;
         this.owningExtension = owningExtension;
+    }
 
-        this.action = () -> {
+    /**
+     * Executes the task.
+     */
+    @Override
+    public void run() {
+        executorService.execute(() -> {
             this.currentThreadTask = Thread.currentThread();
             try {
                 this.runnable.run();
@@ -88,15 +88,7 @@ public class Task implements Runnable {
                 if (this.repeat == 0) this.finish();
                 this.currentThreadTask = null;
             }
-        };
-    }
-
-    /**
-     * Executes the task.
-     */
-    @Override
-    public void run() {
-        executorService.execute(action);
+        });
     }
 
     /**

src/main/java/net/minestom/server/timer/TaskBuilder.java

@@ -36,12 +36,6 @@ public class TaskBuilder {
      */
     private boolean isTransient;
 
-    /**
-     * Should this Task be run on the same thread for each run? Can be used for situations where context is bound to a
-     * single thread. (for instance OpenGL context)
-     */
-    private boolean boundToSingleThread = false;
-
     /**
      * Creates a task builder.
      * <br>
@@ -143,15 +137,6 @@ public class TaskBuilder {
         return this;
     }
 
-    /**
-     * Makes this Task be run on the same thread for each run. Can be used for situations where context is bound to a
-     * single thread. (for instance OpenGL context)
-     */
-    public TaskBuilder bindToSingleThread() {
-        boundToSingleThread = true;
-        return this;
-    }
-
     /**
      * Builds a {@link Task}.
      *
@@ -166,8 +151,7 @@ public class TaskBuilder {
                 this.delay,
                 this.repeat,
                 this.isTransient,
-                this.owningExtension,
-                this.boundToSingleThread);
+                this.owningExtension);
     }
 
     /**