1 /* Copyright (c) 2010, 2021, Oracle and/or its affiliates. 2 3 This program is free software; you can redistribute it and/or modify 4 it under the terms of the GNU General Public License, version 2.0, 5 as published by the Free Software Foundation. 6 7 This program is also distributed with certain software (including 8 but not limited to OpenSSL) that is licensed under separate terms, 9 as designated in a particular file or component or in included license 10 documentation. The authors of MySQL hereby grant you an additional 11 permission to link the program and your derivative works with the 12 separately licensed software that they have included with MySQL. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License, version 2.0, for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program; if not, write to the Free Software 21 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ 22 23 #ifndef TABLE_EWS_GLOBAL_BY_EVENT_NAME_H 24 #define TABLE_EWS_GLOBAL_BY_EVENT_NAME_H 25 26 /** 27 @file storage/perfschema/table_ews_global_by_event_name.h 28 Table EVENTS_WAITS_SUMMARY_GLOBAL_BY_EVENT_NAME (declarations). 29 */ 30 31 #include "pfs_column_types.h" 32 #include "pfs_engine_table.h" 33 #include "pfs_instr_class.h" 34 #include "pfs_instr.h" 35 #include "table_helper.h" 36 37 /** 38 @addtogroup Performance_schema_tables 39 @{ 40 */ 41 42 /** 43 A row of table 44 PERFORMANCE_SCHEMA.EVENTS_WAITS_SUMMARY_GLOBAL_BY_EVENT_NAME. 45 */ 46 struct row_ews_global_by_event_name 47 { 48 /** Column EVENT_NAME. */ 49 PFS_event_name_row m_event_name; 50 /** Columns COUNT_STAR, SUM/MIN/AVG/MAX TIMER_WAIT. */ 51 PFS_stat_row m_stat; 52 }; 53 54 /** 55 Position of a cursor on 56 PERFORMANCE_SCHEMA.EVENTS_WAITS_SUMMARY_GLOBAL_BY_EVENT_NAME. 57 Index 1 on instrument view 58 Index 2 on instrument class (1 based) 59 */ 60 struct pos_ews_global_by_event_name 61 : public PFS_double_index, public PFS_instrument_view_constants 62 { pos_ews_global_by_event_namepos_ews_global_by_event_name63 pos_ews_global_by_event_name() 64 : PFS_double_index(FIRST_VIEW, 1) 65 {} 66 resetpos_ews_global_by_event_name67 inline void reset(void) 68 { 69 m_index_1= FIRST_VIEW; 70 m_index_2= 1; 71 } 72 has_more_viewpos_ews_global_by_event_name73 inline bool has_more_view(void) 74 { return (m_index_1 <= LAST_VIEW); } 75 next_viewpos_ews_global_by_event_name76 inline void next_view(void) 77 { 78 m_index_1++; 79 m_index_2= 1; 80 } 81 }; 82 83 /** Table PERFORMANCE_SCHEMA.EVENTS_WAITS_SUMMARY_GLOBAL_BY_EVENT_NAME. */ 84 class table_ews_global_by_event_name : public PFS_engine_table 85 { 86 public: 87 /** Table share */ 88 static PFS_engine_table_share m_share; 89 static PFS_engine_table* create(); 90 static int delete_all_rows(); 91 static ha_rows get_row_count(); 92 93 virtual int rnd_next(); 94 virtual int rnd_pos(const void *pos); 95 virtual void reset_position(void); 96 97 protected: 98 virtual int read_row_values(TABLE *table, 99 unsigned char *buf, 100 Field **fields, 101 bool read_all); 102 103 table_ews_global_by_event_name(); 104 105 public: ~table_ews_global_by_event_name()106 ~table_ews_global_by_event_name() 107 {} 108 109 protected: 110 void make_mutex_row(PFS_mutex_class *klass); 111 void make_rwlock_row(PFS_rwlock_class *klass); 112 void make_cond_row(PFS_cond_class *klass); 113 void make_file_row(PFS_file_class *klass); 114 void make_table_io_row(PFS_instr_class *klass); 115 void make_table_lock_row(PFS_instr_class *klass); 116 void make_socket_row(PFS_socket_class *klass); 117 void make_idle_row(PFS_instr_class *klass); 118 void make_metadata_row(PFS_instr_class *klass); 119 120 private: 121 /** Table share lock. */ 122 static THR_LOCK m_table_lock; 123 /** Fields definition. */ 124 static TABLE_FIELD_DEF m_field_def; 125 126 /** Current row. */ 127 row_ews_global_by_event_name m_row; 128 /** True is the current row exists. */ 129 bool m_row_exists; 130 /** Current position. */ 131 pos_ews_global_by_event_name m_pos; 132 /** Next position. */ 133 pos_ews_global_by_event_name m_next_pos; 134 }; 135 136 /** @} */ 137 #endif 138