/* * Copyright (c) 2021, 2022, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. *
*/
// For safety, only iterate over a class if its loader is alive. // This function must be called only inside a safepoint, where the value of // k->is_loader_alive() will not change. template<typename Function> void DumpTimeSharedClassTable::iterate_all_live_classes(Function function) const { auto wrapper = [&] (InstanceKlass* k, DumpTimeClassInfo& info) {
assert(SafepointSynchronize::is_at_safepoint(), "invariant");
assert_lock_strong(DumpTimeTable_lock); if (k->is_loader_alive()) {
function(k, info);
assert(k->is_loader_alive(), "must not change");
} else { if (!SystemDictionaryShared::is_excluded_class(k)) {
SystemDictionaryShared::warn_excluded(k, "Class loader not alive");
SystemDictionaryShared::set_excluded_locked(k);
}
}
};
DumpTimeSharedClassTableBaseType::iterate_all(wrapper);
}
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