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authorTom Tromey <tromey@redhat.com>2006-06-16 18:12:22 +0000
committerTom Tromey <tromey@redhat.com>2006-06-16 18:12:22 +0000
commit6e3cb55ff69ff06734603f5c7f5d45f069a52db0 (patch)
tree0208d06669c5e74a875cff595e4b44ecad89fe1b /external/jsr166/java/util/concurrent/locks/AbstractOwnableSynchronizer.java
parentfb10a7fb852158d97502c3658e3112193f8dd05f (diff)
downloadclasspath-6e3cb55ff69ff06734603f5c7f5d45f069a52db0.tar.gz
* external/jsr166: Removed files from cvs trunk.
Diffstat (limited to 'external/jsr166/java/util/concurrent/locks/AbstractOwnableSynchronizer.java')
-rw-r--r--external/jsr166/java/util/concurrent/locks/AbstractOwnableSynchronizer.java57
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diff --git a/external/jsr166/java/util/concurrent/locks/AbstractOwnableSynchronizer.java b/external/jsr166/java/util/concurrent/locks/AbstractOwnableSynchronizer.java
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--- a/external/jsr166/java/util/concurrent/locks/AbstractOwnableSynchronizer.java
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@@ -1,57 +0,0 @@
-/*
- * Written by Doug Lea with assistance from members of JCP JSR-166
- * Expert Group and released to the public domain, as explained at
- * http://creativecommons.org/licenses/publicdomain
- */
-
-package java.util.concurrent.locks;
-
-/**
- * A synchronizer that may be exclusively owned by a thread. This
- * class provides a basis for creating locks and related synchronizers
- * that may entail a notion of ownership. The
- * <tt>AbstractOwnableSynchronizer</tt> class itself does not manage or
- * use this information. However, subclasses and tools may use
- * appropriately maintained values to help control and monitor access
- * and provide diagnostics.
- *
- * @since 1.6
- * @author Doug Lea
- */
-public abstract class AbstractOwnableSynchronizer
- implements java.io.Serializable {
-
- /** Use serial ID even though all fields transient. */
- private static final long serialVersionUID = 3737899427754241961L;
-
- /**
- * Empty constructor for use by subclasses.
- */
- protected AbstractOwnableSynchronizer() { }
-
- /**
- * The current owner of exclusive mode synchronization.
- */
- private transient Thread exclusiveOwnerThread;
-
- /**
- * Sets the thread that currently owns exclusive access. A
- * <tt>null</tt> argument indicates that no thread owns access.
- * This method does not otherwise impose any synchronization or
- * <tt>volatile</tt> field accesses.
- */
- protected final void setExclusiveOwnerThread(Thread t) {
- exclusiveOwnerThread = t;
- }
-
- /**
- * Returns the thread last set by
- * <tt>setExclusiveOwnerThread</tt>, or <tt>null</tt> if never
- * set. This method does not otherwise impose any synchronization
- * or <tt>volatile</tt> field accesses.
- * @return the owner thread
- */
- protected final Thread getExclusiveOwnerThread() {
- return exclusiveOwnerThread;
- }
-}