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75 lines
2.7 KiB
C++
75 lines
2.7 KiB
C++
/*
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* Copyright (c) 2021, 2025, 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_CDS_DUMPTIMECLASSINFO_INLINE_HPP
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#define SHARE_CDS_DUMPTIMECLASSINFO_INLINE_HPP
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#include "cds/dumpTimeClassInfo.hpp"
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#include "cds/cdsConfig.hpp"
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#include "classfile/classLoaderData.inline.hpp"
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#include "classfile/systemDictionaryShared.hpp"
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#include "oops/instanceKlass.hpp"
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#include "oops/klass.inline.hpp"
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#include "runtime/safepoint.hpp"
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#if INCLUDE_CDS
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// For safety, only iterate over a class if its loader is alive.
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// This function must be called only inside a safepoint, where the value of
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// k->is_loader_alive() will not change.
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template<typename Function>
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void DumpTimeSharedClassTable::iterate_all_live_classes(Function function) const {
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auto wrapper = [&] (InstanceKlass* k, DumpTimeClassInfo& info) {
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assert(SafepointSynchronize::is_at_safepoint(), "invariant");
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assert_lock_strong(DumpTimeTable_lock);
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if (CDSConfig::is_dumping_final_static_archive() && !k->is_loaded()) {
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assert(k->defined_by_other_loaders(), "must be");
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function(k, info);
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} else if (k->is_loader_alive()) {
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function(k, info);
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assert(k->is_loader_alive(), "must not change");
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} else {
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if (!SystemDictionaryShared::is_excluded_class(k)) {
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SystemDictionaryShared::log_exclusion(k, "Class loader not alive");
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SystemDictionaryShared::set_excluded_locked(k);
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}
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}
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};
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DumpTimeSharedClassTableBaseType::iterate_all(wrapper);
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}
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template<class ITER>
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void DumpTimeSharedClassTable::iterate_all_live_classes(ITER* iter) const {
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auto function = [&] (InstanceKlass* k, DumpTimeClassInfo& v) {
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iter->do_entry(k, v);
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};
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iterate_all_live_classes(function);
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}
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#endif // INCLUDE_CDS
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#endif // SHARE_CDS_DUMPTIMECLASSINFO_INLINE_HPP
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