gcs_xcom_statistics_interface.h

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/* Copyright (c) 2015, 2022, Oracle and/or its affiliates.
 
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   it under the terms of the GNU General Public License, version 2.0,
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   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */
 
#ifndef GCS_XCOM_STATISTICS_INTERFACE_INCLUDED
#define GCS_XCOM_STATISTICS_INTERFACE_INCLUDED
 
#include <time.h>
#include <algorithm>
 
#include "plugin/group_replication/libmysqlgcs/include/mysql/gcs/gcs_statistics_interface.h"
 
/**
  @class Gcs_xcom_statistics_updater
 
  This interface contains the public methods that the implementation
  of the Gcs_statistics_interface will provide to the other interfaces that
  update statistics.
*/
class Gcs_xcom_statistics_updater {
 public:
  /**
    Method called to register that a message has been sent.
 
    This will update:
    - Total Messages Sent;
    - Total Bytes Sent.
 
    @param[in] message_length the length of the message being sent
   */
 
  virtual void update_message_sent(unsigned long long message_length) = 0;
 
  /**
    Method called to register when a message is received.
 
    This will update:
    - Total Messages Received;
    - Total Bytes Received;
    - Min Message Length;
    - Max Message Length;
    - Last Message Timestamp.
 
    @param[in] message_length the length of the message received
   */
 
  virtual void update_message_received(long message_length) = 0;
 
  virtual ~Gcs_xcom_statistics_updater() = default;
};
 
/**
  @class Gcs_xcom_statistics_interface
 
  This class implements the Gcs_statistics_interface and updater.
*/
class Gcs_xcom_statistics : public Gcs_statistics_interface,
                            public Gcs_xcom_statistics_updater {
 public:
  explicit Gcs_xcom_statistics();
  ~Gcs_xcom_statistics() override;
 
  // Implementation of Gcs_statistics_interface
  long get_total_messages_sent() override;
 
  long get_total_bytes_sent() override;
 
  long get_total_messages_received() override;
 
  long get_total_bytes_received() override;
 
  long get_min_message_length() override;
 
  long get_max_message_length() override;
 
  long get_last_message_timestamp() override;
 
  // Implementation of Gcs_xcom_statistics_updater
  void update_message_sent(unsigned long long message_length) override;
 
  void update_message_received(long message_length) override;
 
 private:
  long total_messages_sent;
  long total_bytes_sent;
  long total_messages_received;
  long total_bytes_received;
  long min_message_length;
  long max_message_length;
  long last_message_timestamp;
};
 
#endif /* GCS_XCOM_STATISTICS_INTERFACE_INCLUDED */