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_BY_THREAD_BY_EVENT_NAME_H 24 #define TABLE_EWS_BY_THREAD_BY_EVENT_NAME_H 25 26 /** 27 @file storage/perfschema/table_ews_by_thread_by_event_name.h 28 Table EVENTS_WAITS_SUMMARY_BY_THREAD_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_BY_THREAD_BY_EVENT_NAME. 45 */ 46 struct row_ews_by_thread_by_event_name 47 { 48 /** Column THREAD_ID. */ 49 ulonglong m_thread_internal_id; 50 /** Column EVENT_NAME. */ 51 PFS_event_name_row m_event_name; 52 /** Columns COUNT_STAR, SUM/MIN/AVG/MAX TIMER_WAIT. */ 53 PFS_stat_row m_stat; 54 }; 55 56 /** 57 Position of a cursor on 58 PERFORMANCE_SCHEMA.EVENTS_WAITS_SUMMARY_BY_THREAD_BY_EVENT_NAME. 59 Index 1 on thread (0 based) 60 Index 2 on instrument view 61 Index 3 on instrument class (1 based) 62 */ 63 struct pos_ews_by_thread_by_event_name 64 : public PFS_triple_index, public PFS_instrument_view_constants 65 { pos_ews_by_thread_by_event_namepos_ews_by_thread_by_event_name66 pos_ews_by_thread_by_event_name() 67 : PFS_triple_index(0, FIRST_VIEW, 1) 68 {} 69 resetpos_ews_by_thread_by_event_name70 inline void reset(void) 71 { 72 m_index_1= 0; 73 m_index_2= FIRST_VIEW; 74 m_index_3= 1; 75 } 76 next_threadpos_ews_by_thread_by_event_name77 inline void next_thread(void) 78 { 79 m_index_1++; 80 m_index_2= FIRST_VIEW; 81 m_index_3= 1; 82 } 83 has_more_viewpos_ews_by_thread_by_event_name84 inline bool has_more_view(void) 85 { return (m_index_2 <= LAST_VIEW); } 86 next_viewpos_ews_by_thread_by_event_name87 inline void next_view(void) 88 { 89 m_index_2++; 90 m_index_3= 1; 91 } 92 }; 93 94 /** Table PERFORMANCE_SCHEMA.EVENTS_WAITS_SUMMARY_BY_THREAD_BY_EVENT_NAME. */ 95 class table_ews_by_thread_by_event_name : public PFS_engine_table 96 { 97 public: 98 /** Table share */ 99 static PFS_engine_table_share m_share; 100 static PFS_engine_table* create(); 101 static int delete_all_rows(); 102 static ha_rows get_row_count(); 103 104 virtual int rnd_next(); 105 virtual int rnd_pos(const void *pos); 106 virtual void reset_position(void); 107 108 protected: 109 virtual int read_row_values(TABLE *table, 110 unsigned char *buf, 111 Field **fields, 112 bool read_all); 113 114 table_ews_by_thread_by_event_name(); 115 116 public: ~table_ews_by_thread_by_event_name()117 ~table_ews_by_thread_by_event_name() 118 {} 119 120 protected: 121 void make_row(PFS_thread *thread, PFS_instr_class *klass); 122 123 private: 124 /** Table share lock. */ 125 static THR_LOCK m_table_lock; 126 /** Fields definition. */ 127 static TABLE_FIELD_DEF m_field_def; 128 129 /** Current row. */ 130 row_ews_by_thread_by_event_name m_row; 131 /** True is the current row exists. */ 132 bool m_row_exists; 133 /** Current position. */ 134 pos_ews_by_thread_by_event_name m_pos; 135 /** Next position. */ 136 pos_ews_by_thread_by_event_name m_next_pos; 137 }; 138 139 /** @} */ 140 #endif 141