author | zgu |
Mon, 09 Sep 2019 11:43:16 -0400 | |
changeset 59284 | 88502b1cf76f |
parent 54615 | 9afd2868c18b |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2018, 2019, 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_GC_SHARED_STRINGDEDUP_STRINGDEDUPTHREAD_INLINE_HPP |
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#define SHARE_GC_SHARED_STRINGDEDUP_STRINGDEDUPTHREAD_INLINE_HPP |
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#include "gc/shared/suspendibleThreadSet.hpp" |
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#include "gc/shared/stringdedup/stringDedupQueue.inline.hpp" |
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#include "gc/shared/stringdedup/stringDedupThread.hpp" |
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template <typename S> |
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void StringDedupThreadImpl<S>::do_deduplication() { |
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S total_stat; |
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{ |
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// Block safepoints while deduplicating shared strings |
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SuspendibleThreadSetJoiner sts_join; |
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deduplicate_shared_strings(&total_stat); |
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} |
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// Main loop |
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for (;;) { |
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S stat; |
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stat.mark_idle(); |
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// Wait for the queue to become non-empty |
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StringDedupQueue::wait(); |
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if (this->should_terminate()) { |
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break; |
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} |
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{ |
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// Include thread in safepoints |
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SuspendibleThreadSetJoiner sts_join; |
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stat.mark_exec(); |
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StringDedupStat::print_start(&stat); |
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// Process the queue |
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for (;;) { |
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oop java_string = StringDedupQueue::pop(); |
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if (java_string == NULL) { |
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break; |
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} |
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StringDedupTable::deduplicate(java_string, &stat); |
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// Safepoint this thread if needed |
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if (sts_join.should_yield()) { |
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stat.mark_block(); |
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sts_join.yield(); |
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stat.mark_unblock(); |
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} |
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} |
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stat.mark_done(); |
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total_stat.add(&stat); |
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print_end(&stat, &total_stat); |
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stat.reset(); |
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} |
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StringDedupTable::clean_entry_cache(); |
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} |
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} |
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template <typename S> |
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void StringDedupThreadImpl<S>::create() { |
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assert(_thread == NULL, "One string deduplication thread allowed"); |
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_thread = new StringDedupThreadImpl<S>(); |
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} |
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#endif // SHARE_GC_SHARED_STRINGDEDUP_STRINGDEDUPTHREAD_INLINE_HPP |