Gale/patches/server/0143-Paired-lock-and-condition-utility.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martijn Muijsers <martijnmuijsers@live.nl>
Date: Fri, 2 Dec 2022 20:31:06 +0100
Subject: [PATCH] Paired lock and condition utility

License: AGPL-3.0 (https://www.gnu.org/licenses/agpl-3.0.html)
Gale - https://galemc.org

diff --git a/src/main/java/org/galemc/gale/concurrent/LockAndCondition.java b/src/main/java/org/galemc/gale/concurrent/LockAndCondition.java
new file mode 100644
index 0000000000000000000000000000000000000000..73fd8ca0bd1168862a03d9bdcae93d62895e8c1f
--- /dev/null
+++ b/src/main/java/org/galemc/gale/concurrent/LockAndCondition.java
@@ -0,0 +1,28 @@
+// Gale - paired lock and condition utility
+
+package org.galemc.gale.concurrent;
+
+import java.util.concurrent.locks.Condition;
+import java.util.concurrent.locks.Lock;
+
+/**
+ * A utility class that stores a {@link Condition} with its {@link Lock}, that can be passed around and used instead
+ * of using an {@link Object} monitor, which does not support speculative locking.
+ *
+ * @author Martijn Muijsers
+ */
+public class LockAndCondition {
+
+    public final Lock lock;
+    public final Condition condition;
+
+    public LockAndCondition(Lock lock) {
+        this(lock, lock.newCondition());
+    }
+
+    public LockAndCondition(Lock lock, Condition condition) {
+        this.lock = lock;
+        this.condition = condition;
+    }
+
+}