jfrPosition.hpp

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * version 2 for more details (a copy is included in the LICENSE file that
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#ifndef SHARE_JFR_WRITERS_JFRPOSITION_HPP
#define SHARE_JFR_WRITERS_JFRPOSITION_HPP

#include "utilities/debug.hpp"
#include "utilities/globalDefinitions.hpp"

template <typename AP> // AllocationPolicy
class Position : public AP {
 private:
  const u1* _start_pos; // logical start
  u1* _current_pos;
  const u1* _end_pos;

 protected:
  const u1* start_pos() const;
  void set_start_pos(const u1* position);
  u1* current_pos();
  void set_current_pos(const u1* new_position);
  void set_current_pos(size_t size);
  const u1* end_pos() const;
  void set_end_pos(const u1* position);
  Position(const u1* start_pos, size_t size);
  Position();

 public:
  size_t available_size() const;
  int64_t used_offset() const;
  int64_t current_offset() const;
  size_t used_size() const;
  void reset();
};

#endif // SHARE_JFR_WRITERS_JFRPOSITION_HPP