apetushkov@9858: /*
apetushkov@9858:  * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
apetushkov@9858:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
apetushkov@9858:  *
apetushkov@9858:  * This code is free software; you can redistribute it and/or modify it
apetushkov@9858:  * under the terms of the GNU General Public License version 2 only, as
apetushkov@9858:  * published by the Free Software Foundation.
apetushkov@9858:  *
apetushkov@9858:  * This code is distributed in the hope that it will be useful, but WITHOUT
apetushkov@9858:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
apetushkov@9858:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
apetushkov@9858:  * version 2 for more details (a copy is included in the LICENSE file that
apetushkov@9858:  * accompanied this code).
apetushkov@9858:  *
apetushkov@9858:  * You should have received a copy of the GNU General Public License version
apetushkov@9858:  * 2 along with this work; if not, write to the Free Software Foundation,
apetushkov@9858:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
apetushkov@9858:  *
apetushkov@9858:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
apetushkov@9858:  * or visit www.oracle.com if you need additional information or have any
apetushkov@9858:  * questions.
apetushkov@9858:  *
apetushkov@9858:  */
apetushkov@9858: 
apetushkov@9858: #ifndef SHARE_VM_JFR_WRITERS_JFRJAVAEVENTWRITER_HPP
apetushkov@9858: #define SHARE_VM_JFR_WRITERS_JFRJAVAEVENTWRITER_HPP
apetushkov@9858: 
apetushkov@9858: #include "jni.h"
apetushkov@9858: #include "memory/allocation.hpp"
apetushkov@9858: 
apetushkov@9858: class JavaThread;
apetushkov@9858: class Thread;
apetushkov@9858: 
apetushkov@9858: class JfrJavaEventWriter : AllStatic {
apetushkov@9858:   friend class JfrCheckpointThreadClosure;
mgronlun@9884:   friend class JfrJavaEventWriterNotificationClosure;
apetushkov@9858:   friend class JfrJavaEventWriterNotifyOperation;
mgronlun@9884:   friend class JfrRecorder;
apetushkov@9858:  private:
mgronlun@9884:   static bool initialize();
apetushkov@9858:   static void notify(JavaThread* jt);
apetushkov@9858: 
apetushkov@9858:  public:
apetushkov@9858:   static bool has_required_classes(TRAPS);
apetushkov@9858:   static void notify();
apetushkov@9858:   static jobject event_writer(Thread* t);
apetushkov@9858:   static jobject new_event_writer(TRAPS);
apetushkov@9858:   static jboolean flush(jobject writer, jint used, jint requested, JavaThread* jt);
apetushkov@9858: };
apetushkov@9858: 
apetushkov@9858: #endif // SHARE_VM_JFR_WRITERS_JFRJAVAEVENTWRITER_HPP