diff options
Diffstat (limited to 'storage/perfschema/table_ews_by_thread_by_event_name.h')
-rw-r--r-- | storage/perfschema/table_ews_by_thread_by_event_name.h | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/storage/perfschema/table_ews_by_thread_by_event_name.h b/storage/perfschema/table_ews_by_thread_by_event_name.h new file mode 100644 index 00000000000..b0710bb8a57 --- /dev/null +++ b/storage/perfschema/table_ews_by_thread_by_event_name.h @@ -0,0 +1,135 @@ +/* Copyright (c) 2010, 2011, 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_EWS_BY_THREAD_BY_EVENT_NAME_H +#define TABLE_EWS_BY_THREAD_BY_EVENT_NAME_H + +/** + @file storage/perfschema/table_ews_by_thread_by_event_name.h + Table EVENTS_WAITS_SUMMARY_BY_THREAD_BY_EVENT_NAME (declarations). +*/ + +#include "pfs_column_types.h" +#include "pfs_engine_table.h" +#include "pfs_instr_class.h" +#include "pfs_instr.h" +#include "table_helper.h" + +/** + @addtogroup Performance_schema_tables + @{ +*/ + +/** + A row of table + PERFORMANCE_SCHEMA.EVENTS_WAITS_SUMMARY_BY_THREAD_BY_EVENT_NAME. +*/ +struct row_ews_by_thread_by_event_name +{ + /** Column THREAD_ID. */ + ulong m_thread_internal_id; + /** Column EVENT_NAME. */ + PFS_event_name_row m_event_name; + /** Columns COUNT_STAR, SUM/MIN/AVG/MAX TIMER_WAIT. */ + PFS_stat_row m_stat; +}; + +/** + Position of a cursor on + PERFORMANCE_SCHEMA.EVENTS_WAITS_SUMMARY_BY_THREAD_BY_EVENT_NAME. + Index 1 on thread (0 based) + Index 2 on instrument view + Index 3 on instrument class (1 based) +*/ +struct pos_ews_by_thread_by_event_name +: public PFS_triple_index, public PFS_instrument_view_constants +{ + pos_ews_by_thread_by_event_name() + : PFS_triple_index(0, FIRST_VIEW, 1) + {} + + inline void reset(void) + { + m_index_1= 0; + m_index_2= FIRST_VIEW; + m_index_3= 1; + } + + inline bool has_more_thread(void) + { return (m_index_1 < thread_max); } + + inline void next_thread(void) + { + m_index_1++; + m_index_2= FIRST_VIEW; + m_index_3= 1; + } + + inline bool has_more_view(void) + { return (m_index_2 <= LAST_VIEW); } + + inline void next_view(void) + { + m_index_2++; + m_index_3= 1; + } +}; + +/** Table PERFORMANCE_SCHEMA.EVENTS_WAITS_SUMMARY_BY_THREAD_BY_EVENT_NAME. */ +class table_ews_by_thread_by_event_name : public PFS_engine_table +{ +public: + /** Table share */ + static PFS_engine_table_share m_share; + static PFS_engine_table* create(); + static int delete_all_rows(); + + virtual int rnd_next(); + virtual int rnd_pos(const void *pos); + virtual void reset_position(void); + +protected: + virtual int read_row_values(TABLE *table, + unsigned char *buf, + Field **fields, + bool read_all); + + table_ews_by_thread_by_event_name(); + +public: + ~table_ews_by_thread_by_event_name() + {} + +protected: + void make_row(PFS_thread *thread, PFS_instr_class *klass); + +private: + /** Table share lock. */ + static THR_LOCK m_table_lock; + /** Fields definition. */ + static TABLE_FIELD_DEF m_field_def; + + /** Current row. */ + row_ews_by_thread_by_event_name m_row; + /** True is the current row exists. */ + bool m_row_exists; + /** Current position. */ + pos_ews_by_thread_by_event_name m_pos; + /** Next position. */ + pos_ews_by_thread_by_event_name m_next_pos; +}; + +/** @} */ +#endif |