table_events_waits_summary.h

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  it under the terms of the GNU General Public License, version 2.0,
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  You should have received a copy of the GNU General Public License
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  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */
 
#ifndef TABLE_EVENTS_WAITS_SUMMARY_H
#define TABLE_EVENTS_WAITS_SUMMARY_H
 
/**
  @file storage/perfschema/table_events_waits_summary.h
  Table EVENTS_WAITS_SUMMARY_BY_xxx (declarations).
*/
 
#include <sys/types.h>
 
#include "my_inttypes.h"
#include "storage/perfschema/table_all_instr.h"
#include "storage/perfschema/table_helper.h"
 
class Field;
class PFS_engine_table;
class Plugin_table;
struct PFS_cond;
struct PFS_engine_table_share;
struct PFS_file;
struct PFS_instr;
struct PFS_instr_class;
struct PFS_mutex;
struct PFS_rwlock;
struct PFS_single_stat;
struct PFS_socket;
struct TABLE;
struct THR_LOCK;
 
/**
  @addtogroup performance_schema_tables
  @{
*/
 
/** A row of PERFORMANCE_SCHEMA.EVENTS_WAITS_SUMMARY_BY_INSTANCE. */
struct row_events_waits_summary_by_instance {
  /** Column EVENT_NAME. */
  const char *m_name;
  /** Length in bytes of @c m_name. */
  uint m_name_length;
  /** Column OBJECT_INSTANCE_BEGIN. */
  intptr m_object_instance_addr;
  /** Columns COUNT_STAR, SUM/MIN/AVG/MAX TIMER_WAIT. */
  PFS_stat_row m_stat;
};
 
class PFS_index_events_waits_summary_by_instance : public PFS_index_all_instr {
 public:
  PFS_index_events_waits_summary_by_instance()
      : PFS_index_all_instr(&m_key), m_key("OBJECT_INSTANCE_BEGIN") {}
 
  ~PFS_index_events_waits_summary_by_instance() override = default;
 
  bool match(PFS_mutex *pfs) override;
  bool match(PFS_rwlock *pfs) override;
  bool match(PFS_cond *pfs) override;
  bool match(PFS_file *pfs) override;
  bool match(PFS_socket *pfs) override;
 
 private:
  PFS_key_object_instance m_key;
};
 
class PFS_index_events_waits_summary_by_event_name
    : public PFS_index_all_instr {
 public:
  PFS_index_events_waits_summary_by_event_name()
      : PFS_index_all_instr(&m_key), m_key("EVENT_NAME") {}
 
  ~PFS_index_events_waits_summary_by_event_name() override = default;
 
  bool match(PFS_mutex *pfs) override;
  bool match(PFS_rwlock *pfs) override;
  bool match(PFS_cond *pfs) override;
  bool match(PFS_file *pfs) override;
  bool match(PFS_socket *pfs) override;
  bool match_view(uint view) override;
 
 private:
  PFS_key_event_name m_key;
};
 
/** Table PERFORMANCE_SCHEMA.EVENTS_WAITS_SUMMARY_BY_INSTANCE. */
class table_events_waits_summary_by_instance : public table_all_instr {
 public:
  /** Table share */
  static PFS_engine_table_share m_share;
  static PFS_engine_table *create(PFS_engine_table_share *);
  static int delete_all_rows();
  int index_init(uint idx, bool sorted) override;
 
 protected:
  int make_instr_row(pfs_lock *object_lock, PFS_instr_class *klass,
                     const void *object_instance_begin,
                     PFS_single_stat *pfs_stat);
  int make_mutex_row(PFS_mutex *pfs) override;
  int make_rwlock_row(PFS_rwlock *pfs) override;
  int make_cond_row(PFS_cond *pfs) override;
  int make_file_row(PFS_file *pfs) override;
  int make_socket_row(PFS_socket *pfs) override;
 
  int read_row_values(TABLE *table, unsigned char *buf, Field **fields,
                      bool read_all) override;
 
  table_events_waits_summary_by_instance();
 
 public:
  ~table_events_waits_summary_by_instance() override = default;
 
 private:
  /** Table share lock. */
  static THR_LOCK m_table_lock;
  /** Table definition. */
  static Plugin_table m_table_def;
 
  /** Current row. */
  row_events_waits_summary_by_instance m_row;
};
 
/** @} */
#endif