src/hotspot/share/jfr/support/jfrDeprecationEventWriter.hpp

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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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#ifndef SHARE_JFR_SUPPORT_JFRDEPRECATIONEVENTWRITER_HPP
#define SHARE_JFR_SUPPORT_JFRDEPRECATIONEVENTWRITER_HPP

#include "memory/allocation.hpp"
#include "jfr/utilities/jfrBlob.hpp"
#include "jfr/utilities/jfrTime.hpp"

class JfrCheckpointWriter;
class JfrChunkWriter;
class JfrDeprecatedEdge;

// This writer will collapse all individual stacktrace blobs into a single TYPE_STACKTRACE checkpoint.
class JfrDeprecatedStackTraceWriter : public StackObj{
 private:
  JfrChunkWriter& _cw;
  int64_t _begin_offset;
  int64_t _elements_offset;
  size_t _processed;
  uint32_t _elements;
  bool _for_removal;
 public:
  JfrDeprecatedStackTraceWriter(JfrChunkWriter& cw);
  ~JfrDeprecatedStackTraceWriter();
  size_t elements() const { return _elements; }
  size_t processed() const { return _processed; }
  bool process(const JfrDeprecatedEdge* edge);

  static void install_stacktrace_blob(JfrDeprecatedEdge* edge, JfrCheckpointWriter& writer, JavaThread* jt);
};

class JfrDeprecatedEventWriter : public StackObj {
 private:
  JfrTicks _now;
  JfrChunkWriter& _cw;
  JfrCheckpointWriter& _tsw;
  bool _for_removal;
  bool _stacktrace;
 public:
  JfrDeprecatedEventWriter(JfrChunkWriter& cw, JfrCheckpointWriter& tsw, bool stacktrace);
  bool process(const JfrDeprecatedEdge* edge);
};

class JfrDeprecatedEventClear : public StackObj {
 public:
  JfrDeprecatedEventClear();
  bool process(const JfrDeprecatedEdge* edge);
};

class JfrDeprecatedEventWriterState : AllStatic {
 public:
  static void on_initialization();
  static void on_level_setting_update(int64_t new_level);
};

#endif // SHARE_JFR_SUPPORT_JFRDEPRECATIONEVENTWRITER_HPP