64 lines
1.9 KiB
Java
64 lines
1.9 KiB
Java
/*
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* Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package nsk.share.gc.lock;
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import nsk.share.gc.gp.GarbageProducer;
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/**
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* Locker represents a way to lock a resource
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* which may be critical for GC to work.
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*/
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public interface Locker<T> {
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/**
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* Enable this locker and make necessary preparations.
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*/
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public void enable();
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/**
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* Lock an object.
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*
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* There can be multiple calls to this, but to lock
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* again, one must first unlock.
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*/
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public void lock();
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/**
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* Unlock an object.
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*
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*/
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public void unlock();
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/**
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* Get any exceptions that occured.
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*
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* @return exception or null if there none
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*/
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public Throwable getException();
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/**
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* Disable this locker and make necessary cleanups.
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*/
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public void disable();
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}
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