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b1d915ef80
Don't post information that uses metadata from unloaded nmethods Reviewed-by: eosterlund, dholmes, sspitsyn
57 lines
2.0 KiB
C++
57 lines
2.0 KiB
C++
/*
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* Copyright (c) 2011, 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_RUNTIME_SERVICETHREAD_HPP
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#define SHARE_RUNTIME_SERVICETHREAD_HPP
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#include "runtime/thread.hpp"
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// A hidden from external view JavaThread for JVMTI compiled-method-load
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// events, oop storage cleanup, and the maintainance of string, symbol,
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// protection domain, and resolved method tables.
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class JvmtiDeferredEvent;
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class ServiceThread : public JavaThread {
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friend class VMStructs;
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private:
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static ServiceThread* _instance;
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static JvmtiDeferredEvent* _jvmti_event;
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static void service_thread_entry(JavaThread* thread, TRAPS);
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ServiceThread(ThreadFunction entry_point) : JavaThread(entry_point) {};
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public:
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static void initialize();
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// Hide this thread from external view.
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bool is_hidden_from_external_view() const { return true; }
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bool is_service_thread() const { return true; }
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// GC support
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void oops_do(OopClosure* f, CodeBlobClosure* cf);
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void nmethods_do(CodeBlobClosure* cf);
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};
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#endif // SHARE_RUNTIME_SERVICETHREAD_HPP
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