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 Foundation, 21 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */ 22 23 #ifndef TABLE_EVENTS_STAGES_H 24 #define TABLE_EVENTS_STAGES_H 25 26 /** 27 @file storage/perfschema/table_events_stages.h 28 Table EVENTS_STAGES_xxx (declarations). 29 */ 30 31 #include "pfs_column_types.h" 32 #include "pfs_engine_table.h" 33 #include "pfs_events_stages.h" 34 35 struct PFS_thread; 36 37 /** 38 @addtogroup Performance_schema_tables 39 @{ 40 */ 41 42 /** A row of table_events_stages_common. */ 43 struct row_events_stages 44 { 45 /** Column THREAD_ID. */ 46 ulonglong m_thread_internal_id; 47 /** Column EVENT_ID. */ 48 ulonglong m_event_id; 49 /** Column END_EVENT_ID. */ 50 ulonglong m_end_event_id; 51 /** Column NESTING_EVENT_ID. */ 52 ulonglong m_nesting_event_id; 53 /** Column NESTING_EVENT_TYPE. */ 54 enum_event_type m_nesting_event_type; 55 /** Column EVENT_NAME. */ 56 const char *m_name; 57 /** Length in bytes of @c m_name. */ 58 uint m_name_length; 59 /** Column TIMER_START. */ 60 ulonglong m_timer_start; 61 /** Column TIMER_END. */ 62 ulonglong m_timer_end; 63 /** Column TIMER_WAIT. */ 64 ulonglong m_timer_wait; 65 /** Column SOURCE. */ 66 char m_source[COL_SOURCE_SIZE]; 67 /** Length in bytes of @c m_source. */ 68 uint m_source_length; 69 bool m_progress; 70 /** Column WORK_COMPLETED. */ 71 ulonglong m_work_completed; 72 /** Column WORK_ESTIMATED. */ 73 ulonglong m_work_estimated; 74 }; 75 76 /** Position of a cursor on PERFORMANCE_SCHEMA.EVENTS_STAGES_HISTORY. */ 77 struct pos_events_stages_history : public PFS_double_index 78 { pos_events_stages_historypos_events_stages_history79 pos_events_stages_history() 80 : PFS_double_index(0, 0) 81 {} 82 resetpos_events_stages_history83 inline void reset(void) 84 { 85 m_index_1= 0; 86 m_index_2= 0; 87 } 88 next_threadpos_events_stages_history89 inline void next_thread(void) 90 { 91 m_index_1++; 92 m_index_2= 0; 93 } 94 }; 95 96 /** 97 Adapter, for table sharing the structure of 98 PERFORMANCE_SCHEMA.EVENTS_STAGES_CURRENT. 99 */ 100 class table_events_stages_common : public PFS_engine_table 101 { 102 protected: 103 virtual int read_row_values(TABLE *table, 104 unsigned char *buf, 105 Field **fields, 106 bool read_all); 107 108 table_events_stages_common(const PFS_engine_table_share *share, void *pos); 109 ~table_events_stages_common()110 ~table_events_stages_common() 111 {} 112 113 void make_row(PFS_events_stages *stage); 114 115 /** Current row. */ 116 row_events_stages m_row; 117 /** True if the current row exists. */ 118 bool m_row_exists; 119 }; 120 121 /** Table PERFORMANCE_SCHEMA.EVENTS_STAGES_CURRENT. */ 122 class table_events_stages_current : public table_events_stages_common 123 { 124 public: 125 /** Table share */ 126 static PFS_engine_table_share m_share; 127 static PFS_engine_table* create(); 128 static int delete_all_rows(); 129 static ha_rows get_row_count(); 130 131 virtual int rnd_init(bool scan); 132 virtual int rnd_next(); 133 virtual int rnd_pos(const void *pos); 134 virtual void reset_position(void); 135 136 protected: 137 table_events_stages_current(); 138 139 public: ~table_events_stages_current()140 ~table_events_stages_current() 141 {} 142 143 private: 144 friend class table_events_stages_history; 145 friend class table_events_stages_history_long; 146 147 /** Table share lock. */ 148 static THR_LOCK m_table_lock; 149 /** 150 Fields definition. 151 Also used by table_events_stages_history 152 and table_events_stages_history_long. 153 */ 154 static TABLE_FIELD_DEF m_field_def; 155 156 /** Current position. */ 157 PFS_simple_index m_pos; 158 /** Next position. */ 159 PFS_simple_index m_next_pos; 160 }; 161 162 /** Table PERFORMANCE_SCHEMA.EVENTS_STAGES_HISTORY. */ 163 class table_events_stages_history : public table_events_stages_common 164 { 165 public: 166 /** Table share */ 167 static PFS_engine_table_share m_share; 168 static PFS_engine_table* create(); 169 static int delete_all_rows(); 170 static ha_rows get_row_count(); 171 172 virtual int rnd_init(bool scan); 173 virtual int rnd_next(); 174 virtual int rnd_pos(const void *pos); 175 virtual void reset_position(void); 176 177 protected: 178 table_events_stages_history(); 179 180 public: ~table_events_stages_history()181 ~table_events_stages_history() 182 {} 183 184 private: 185 /** Table share lock. */ 186 static THR_LOCK m_table_lock; 187 188 /** Current position. */ 189 pos_events_stages_history m_pos; 190 /** Next position. */ 191 pos_events_stages_history m_next_pos; 192 }; 193 194 /** Table PERFORMANCE_SCHEMA.EVENTS_STAGES_HISTORY_LONG. */ 195 class table_events_stages_history_long : public table_events_stages_common 196 { 197 public: 198 /** Table share */ 199 static PFS_engine_table_share m_share; 200 static PFS_engine_table* create(); 201 static int delete_all_rows(); 202 static ha_rows get_row_count(); 203 204 virtual int rnd_init(bool scan); 205 virtual int rnd_next(); 206 virtual int rnd_pos(const void *pos); 207 virtual void reset_position(void); 208 209 protected: 210 table_events_stages_history_long(); 211 212 public: ~table_events_stages_history_long()213 ~table_events_stages_history_long() 214 {} 215 216 private: 217 /** Table share lock. */ 218 static THR_LOCK m_table_lock; 219 220 /** Current position. */ 221 PFS_simple_index m_pos; 222 /** Next position. */ 223 PFS_simple_index m_next_pos; 224 }; 225 226 /** @} */ 227 #endif 228