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96 lines
2.7 KiB
C++
96 lines
2.7 KiB
C++
/*
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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
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