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43 lines
1.2 KiB
Diff
43 lines
1.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Martijn Muijsers <martijnmuijsers@live.nl>
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Date: Sun, 5 Feb 2023 19:11:39 +0100
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Subject: [PATCH] CheckableLock utility
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License: AGPL-3.0 (https://www.gnu.org/licenses/agpl-3.0.html)
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Gale - https://galemc.org
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diff --git a/src/main/java/org/galemc/gale/concurrent/CheckableLock.java b/src/main/java/org/galemc/gale/concurrent/CheckableLock.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..749d8d8e2038554a21c2d879349d5189d86a8481
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--- /dev/null
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+++ b/src/main/java/org/galemc/gale/concurrent/CheckableLock.java
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@@ -0,0 +1,28 @@
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+// Gale - CheckableLock utility
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+
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+package org.galemc.gale.concurrent;
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+
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+import org.galemc.gale.executor.annotation.YieldFree;
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+
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+import java.util.concurrent.locks.Lock;
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+
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+/**
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+ * A {@link Lock} that also provides an {@link #isLocked()} method.
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+ *
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+ * @author Martijn Muijsers under AGPL-3.0
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+ */
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+public interface CheckableLock extends Lock {
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+
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+ /**
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+ * @return Whether this lock is currently held.
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+ */
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+ @YieldFree
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+ boolean isLocked();
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+
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+ /**
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+ * @return Whether this lock is currently held by the {@link Thread#currentThread}.
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+ */
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+ @YieldFree
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+ boolean isHeldByCurrentThread();
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+
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+}
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