text: /*
     Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
  
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; version 2 of the License.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program; if not, write to the Free Software
     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */
  
  
  #ifndef TABLE_REPLICATION_GROUP_MEMBER_STATS_H
  #define TABLE_REPLICATION_GROUP_MEMBER_STATS_H
  
  /**
    @file storage/perfschema/table_replication_group_member_stats.h
    Table replication_group_member_stats (declarations).
  */
  
  #include "pfs_column_types.h"
  #include "pfs_engine_table.h"
  #include "mysql_com.h"
  #include "rpl_info.h"
  #include "rpl_gtid.h"
  #include <mysql/plugin_group_replication.h>
  
  /**
    @addtogroup Performance_schema_tables
    @{
  */
  
  /**
    A row in node status table. The fields with string values have an additional
    length field denoted by <field_name>_length.
  */
  
  struct st_row_group_member_stats {
    char channel_name[CHANNEL_NAME_LENGTH];
    uint channel_name_length;
    char view_id[HOSTNAME_LENGTH];
    uint view_id_length;
    char member_id[UUID_LENGTH];
    uint member_id_length;
    ulonglong trx_in_queue;
    ulonglong trx_checked;
    ulonglong trx_conflicts;
    ulonglong trx_validating;
    char *trx_committed;
    size_t trx_committed_length;
    char last_cert_trx[Gtid::MAX_TEXT_LENGTH+1];
    int last_cert_trx_length;
  };
  
  /** Table PERFORMANCE_SCHEMA.REPLICATION_GROUP_MEMBER_STATS. */
  class table_replication_group_member_stats: public PFS_engine_table
  {
  private:
    void make_row();
    /** Table share lock. */
    static THR_LOCK m_table_lock;
    /** Fields definition. */
    static TABLE_FIELD_DEF m_field_def;
    /** True if the current row exists. */
    bool m_row_exists;
    /** Current row */
    st_row_group_member_stats m_row;
    /** Current position. */
    PFS_simple_index m_pos;
    /** Next position. */
    PFS_simple_index m_next_pos;
  
  protected:
    /**
      Read the current row values.
      @param table            Table handle
      @param buf              row buffer
      @param fields           Table fields
      @param read_all         true if all columns are read.
    */
  
    virtual int read_row_values(TABLE *table,
                                unsigned char *buf,
                                Field **fields,
                                bool read_all);
  
    table_replication_group_member_stats();
  
  public:
    ~table_replication_group_member_stats();
  
    /** Table share. */
    static PFS_engine_table_share m_share;
    static PFS_engine_table* create();
    static ha_rows get_row_count();
    virtual int rnd_next();
    virtual int rnd_pos(const void *pos);
    virtual void reset_position(void);
  
  };
  
  /** @} */
  #endif
  
  