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31 class JfrChunkWriter; |
31 class JfrChunkWriter; |
32 |
32 |
33 // |
33 // |
34 // Metadata is continuously updated in Java as event classes are loaded / unloaded. |
34 // Metadata is continuously updated in Java as event classes are loaded / unloaded. |
35 // Using update(), Java stores a binary representation back to native. |
35 // Using update(), Java stores a binary representation back to native. |
36 // This is for easy access on chunk finalization as well as having it readily available in the case of fatal error. |
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37 // |
36 // |
38 class JfrMetadataEvent : AllStatic { |
37 class JfrMetadataEvent : AllStatic { |
39 public: |
38 public: |
40 static void lock(); |
39 static void write(JfrChunkWriter& writer); |
41 static void unlock(); |
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42 static size_t write(JfrChunkWriter& writer, jlong metadata_offset); |
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43 static void update(jbyteArray metadata); |
40 static void update(jbyteArray metadata); |
44 }; |
41 }; |
45 |
42 |
46 #endif // SHARE_JFR_RECORDER_CHECKPOINT_JFRMETADATAEVENT_HPP |
43 #endif // SHARE_JFR_RECORDER_CHECKPOINT_JFRMETADATAEVENT_HPP |