src/hotspot/share/runtime/notificationThread.hpp
author mgronlun
Wed, 30 Oct 2019 19:43:52 +0100
changeset 58863 c16ac7a2eba4
parent 58503 726a3945e934
permissions -rw-r--r--
8226511: Implement JFR Event Streaming Reviewed-by: egahlin, mseledtsov, mgronlun Contributed-by: erik.gahlin@oracle.com, mikhailo.seledtsov@oracle.com, markus.gronlund@oracle.com
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/*
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 * Copyright (c) 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_NOTIFICATIONTHREAD_HPP
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#define SHARE_RUNTIME_NOTIFICATIONTHREAD_HPP
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#include "runtime/thread.hpp"
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// A JavaThread for low memory detection support, GC and
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// diagnostic framework notifications. This thread is not hidden
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// from the external view to allow the debugger to stop at the
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// breakpoints inside registred MXBean notification listeners.
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class NotificationThread : public JavaThread {
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  friend class VMStructs;
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 private:
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  static NotificationThread* _instance;
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  static void notification_thread_entry(JavaThread* thread, TRAPS);
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  NotificationThread(ThreadFunction entry_point) : JavaThread(entry_point) {};
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 public:
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  static void initialize();
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};
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#endif // SHARE_RUNTIME_NOTIFICATIONTHREAD_HPP