Thu, 27 Feb 2020 05:40:59 +0000
8187078: -XX:+VerifyOops finds numerous problems when running JPRT
Reviewed-by: andrew
1 /*
2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
25 #ifndef SHARE_VM_RUNTIME_SERVICETHREAD_HPP
26 #define SHARE_VM_RUNTIME_SERVICETHREAD_HPP
28 #include "runtime/thread.hpp"
30 // A JavaThread for low memory detection support and JVMTI
31 // compiled-method-load events.
32 class ServiceThread : public JavaThread {
33 friend class VMStructs;
34 private:
36 static ServiceThread* _instance;
38 static void service_thread_entry(JavaThread* thread, TRAPS);
39 ServiceThread(ThreadFunction entry_point) : JavaThread(entry_point) {};
41 public:
42 static void initialize();
44 // Hide this thread from external view.
45 bool is_hidden_from_external_view() const { return true; }
47 // Returns true if the passed thread is the service thread.
48 static bool is_service_thread(Thread* thread);
49 };
51 #endif // SHARE_VM_RUNTIME_SERVICETHREAD_HPP