author | kbarrett |
Wed, 15 Apr 2015 12:16:01 -0400 | |
changeset 30182 | 1c980a880941 |
parent 24331 | c0bc7e5653fb |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2014, 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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*/ |
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#ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1STRINGDEDUPTHREAD_HPP |
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#define SHARE_VM_GC_IMPLEMENTATION_G1_G1STRINGDEDUPTHREAD_HPP |
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#include "gc_implementation/g1/g1StringDedupStat.hpp" |
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#include "gc_implementation/shared/concurrentGCThread.hpp" |
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// |
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// The deduplication thread is where the actual deduplication occurs. It waits for |
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// deduplication candidates to appear on the deduplication queue, removes them from |
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// the queue and tries to deduplicate them. It uses the deduplication hashtable to |
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// find identical, already existing, character arrays on the heap. The thread runs |
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// concurrently with the Java application but participates in safepoints to allow |
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// the GC to adjust and unlink oops from the deduplication queue and table. |
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// |
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class G1StringDedupThread: public ConcurrentGCThread { |
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private: |
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static G1StringDedupThread* _thread; |
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G1StringDedupThread(); |
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~G1StringDedupThread(); |
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void print(outputStream* st, const G1StringDedupStat& last_stat, const G1StringDedupStat& total_stat); |
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public: |
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static void create(); |
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095cc0a63ed9
8037112: gc/g1/TestHumongousAllocInitialMark.java caused SIGSEGV
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static void stop(); |
095cc0a63ed9
8037112: gc/g1/TestHumongousAllocInitialMark.java caused SIGSEGV
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static G1StringDedupThread* thread(); |
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virtual void run(); |
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}; |
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#endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1STRINGDEDUPTHREAD_HPP |