Mercurial > jdk8-mips64-public > hotspot / annotate
src/share/vm/jfr/writers/jfrJavaEventWriter.hpp@1258121876f8 (annotated)
src/share/vm/jfr/writers/jfrJavaEventWriter.hpp
Fri, 27 Sep 2019 13:23:32 +0800
- author
- mgronlun
- date
- Fri, 27 Sep 2019 13:23:32 +0800
- changeset 9884
- 1258121876f8
- parent 9858
- b985cbb00e68
- permissions
- -rw-r--r--
8227011: Starting a JFR recording in response to JVMTI VMInit and / or Java agent premain corrupts memory
Reviewed-by: egahlin, rwestberg
| apetushkov@9858 | 1 | /* |
| apetushkov@9858 | 2 | * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved. |
| apetushkov@9858 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| apetushkov@9858 | 4 | * |
| apetushkov@9858 | 5 | * This code is free software; you can redistribute it and/or modify it |
| apetushkov@9858 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| apetushkov@9858 | 7 | * published by the Free Software Foundation. |
| apetushkov@9858 | 8 | * |
| apetushkov@9858 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| apetushkov@9858 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| apetushkov@9858 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| apetushkov@9858 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| apetushkov@9858 | 13 | * accompanied this code). |
| apetushkov@9858 | 14 | * |
| apetushkov@9858 | 15 | * You should have received a copy of the GNU General Public License version |
| apetushkov@9858 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| apetushkov@9858 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| apetushkov@9858 | 18 | * |
| apetushkov@9858 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| apetushkov@9858 | 20 | * or visit www.oracle.com if you need additional information or have any |
| apetushkov@9858 | 21 | * questions. |
| apetushkov@9858 | 22 | * |
| apetushkov@9858 | 23 | */ |
| apetushkov@9858 | 24 | |
| apetushkov@9858 | 25 | #ifndef SHARE_VM_JFR_WRITERS_JFRJAVAEVENTWRITER_HPP |
| apetushkov@9858 | 26 | #define SHARE_VM_JFR_WRITERS_JFRJAVAEVENTWRITER_HPP |
| apetushkov@9858 | 27 | |
| apetushkov@9858 | 28 | #include "jni.h" |
| apetushkov@9858 | 29 | #include "memory/allocation.hpp" |
| apetushkov@9858 | 30 | |
| apetushkov@9858 | 31 | class JavaThread; |
| apetushkov@9858 | 32 | class Thread; |
| apetushkov@9858 | 33 | |
| apetushkov@9858 | 34 | class JfrJavaEventWriter : AllStatic { |
| apetushkov@9858 | 35 | friend class JfrCheckpointThreadClosure; |
| mgronlun@9884 | 36 | friend class JfrJavaEventWriterNotificationClosure; |
| apetushkov@9858 | 37 | friend class JfrJavaEventWriterNotifyOperation; |
| mgronlun@9884 | 38 | friend class JfrRecorder; |
| apetushkov@9858 | 39 | private: |
| mgronlun@9884 | 40 | static bool initialize(); |
| apetushkov@9858 | 41 | static void notify(JavaThread* jt); |
| apetushkov@9858 | 42 | |
| apetushkov@9858 | 43 | public: |
| apetushkov@9858 | 44 | static bool has_required_classes(TRAPS); |
| apetushkov@9858 | 45 | static void notify(); |
| apetushkov@9858 | 46 | static jobject event_writer(Thread* t); |
| apetushkov@9858 | 47 | static jobject new_event_writer(TRAPS); |
| apetushkov@9858 | 48 | static jboolean flush(jobject writer, jint used, jint requested, JavaThread* jt); |
| apetushkov@9858 | 49 | }; |
| apetushkov@9858 | 50 | |
| apetushkov@9858 | 51 | #endif // SHARE_VM_JFR_WRITERS_JFRJAVAEVENTWRITER_HPP |
