1 /*
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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
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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  *
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24 
25 #ifndef SHARE_JFR_WRITERS_JFRJAVAEVENTWRITER_HPP
26 #define SHARE_JFR_WRITERS_JFRJAVAEVENTWRITER_HPP
27 
28 #include "jni.h"
29 #include "memory/allocation.hpp"
30 
31 class JavaThread;
32 class Thread;
33 
34 class JfrJavaEventWriter : AllStatic {
35   friend class JfrNotifyClosure;
36   friend class JfrJavaEventWriterNotifyOperation;
37   friend class JfrJavaEventWriterNotificationClosure;
38   friend class JfrRecorder;
39  private:
40   static bool initialize();
41   static void notify(JavaThread* jt);
42 
43  public:
44   static void notify();
45   static jobject event_writer(Thread* t);
46   static jobject new_event_writer(TRAPS);
47   static jboolean flush(jobject writer, jint used, jint requested, JavaThread* jt);
48 };
49 
50 #endif // SHARE_JFR_WRITERS_JFRJAVAEVENTWRITER_HPP
51