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Diffstat (limited to 'storage/perfschema/table_events_waits.h')
| -rw-r--r-- | storage/perfschema/table_events_waits.h | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/storage/perfschema/table_events_waits.h b/storage/perfschema/table_events_waits.h new file mode 100644 index 00000000000..5aa16cc0cab --- /dev/null +++ b/storage/perfschema/table_events_waits.h @@ -0,0 +1,248 @@ +/* Copyright (C) 2008-2009 Sun Microsystems, Inc + + 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ + +#ifndef TABLE_EVENTS_WAITS_H +#define TABLE_EVENTS_WAITS_H + +/** + @file storage/perfschema/table_events_waits.h + Table EVENTS_WAITS_xxx (declarations). +*/ + +#include "pfs_column_types.h" +#include "pfs_engine_table.h" +#include "pfs_events_waits.h" + +struct PFS_thread; + +/** + @addtogroup Performance_schema_tables + @{ +*/ + +/** A row of table_events_waits_common. */ +struct row_events_waits +{ + /** Column THREAD_ID. */ + ulong m_thread_internal_id; + /** Column EVENT_ID. */ + ulonglong m_event_id; + /** Column EVENT_NAME. */ + const char *m_name; + /** Length in bytes of @c m_name. */ + uint m_name_length; + /** Timer state. */ + enum timer_state m_timer_state; + /** Column TIMER_START. */ + ulonglong m_timer_start; + /** True if TIMER_END is null. */ + bool m_timer_end_null; + /** Column TIMER_END. */ + ulonglong m_timer_end; + /** Column OBJECT_TYPE. */ + const char *m_object_type; + /** Length in bytes of @c m_object_type. */ + uint m_object_type_length; + /** Column OBJECT_SCHEMA. */ + char m_object_schema[COL_OBJECT_SCHEMA_SIZE]; + /** Length in bytes of @c m_object_schema. */ + uint m_object_schema_length; + /** Column OBJECT_NAME. */ + char m_object_name[COL_OBJECT_NAME_EXTENDED_SIZE]; + /** Length in bytes of @c m_object_name. */ + uint m_object_name_length; + /** Column OBJECT_INSTANCE_BEGIN. */ + intptr m_object_instance_addr; + /** Column SOURCE. */ + char m_source[COL_SOURCE_SIZE]; + /** Length in bytes of @c m_source. */ + uint m_source_length; + /** Column OPERATION. */ + enum_operation_type m_operation; + /** Column NUMBER_OF_BYTES. */ + ulonglong m_number_of_bytes; + /** Column FLAGS. */ + uint m_flags; +}; + +/** Position of a cursor on PERFORMANCE_SCHEMA.EVENTS_WAITS_CURRENT. */ +struct pos_events_waits_current : public PFS_double_index +{ + pos_events_waits_current() + : PFS_double_index(0, 0) + {} + + inline void reset(void) + { + m_index_1= 0; + m_index_2= 0; + } + + inline void next_thread(void) + { + m_index_1++; + m_index_2= 0; + } +}; + +/** Position of a cursor on PERFORMANCE_SCHEMA.EVENTS_WAITS_HISTORY. */ +struct pos_events_waits_history : public PFS_double_index +{ + pos_events_waits_history() + : PFS_double_index(0, 0) + {} + + inline void reset(void) + { + m_index_1= 0; + m_index_2= 0; + } + + inline void next_thread(void) + { + m_index_1++; + m_index_2= 0; + } +}; + +/** + Adapter, for table sharing the structure of + PERFORMANCE_SCHEMA.EVENTS_WAITS_CURRENT. +*/ +class table_events_waits_common : public PFS_readonly_table +{ +protected: + virtual int read_row_values(TABLE *table, + unsigned char *buf, + Field **fields, + bool read_all); + + table_events_waits_common(const PFS_engine_table_share *share, void *pos); + + ~table_events_waits_common() + {} + + void clear_object_columns(); + + void make_row(bool thread_own_wait, PFS_thread *pfs_thread, + PFS_events_waits *wait); + + /** Current row. */ + row_events_waits m_row; + /** True is the current row exists. */ + bool m_row_exists; +}; + +/** Table PERFORMANCE_SCHEMA.EVENTS_WAITS_CURRENT. */ +class table_events_waits_current : public table_events_waits_common +{ +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: + table_events_waits_current(); + +public: + ~table_events_waits_current() + {} + +private: + friend class table_events_waits_history; + friend class table_events_waits_history_long; + + /** Table share lock. */ + static THR_LOCK m_table_lock; + /** + Fields definition. + Also used by table_events_waits_history + and table_events_waits_history_long. + */ + static TABLE_FIELD_DEF m_field_def; + + /** Current position. */ + pos_events_waits_current m_pos; + /** Next position. */ + pos_events_waits_current m_next_pos; +}; + +/** Table PERFORMANCE_SCHEMA.EVENTS_WAITS_HISTORY. */ +class table_events_waits_history : public table_events_waits_common +{ +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: + table_events_waits_history(); + +public: + ~table_events_waits_history() + {} + +private: + /** Table share lock. */ + static THR_LOCK m_table_lock; + + /** Current position. */ + pos_events_waits_history m_pos; + /** Next position. */ + pos_events_waits_history m_next_pos; +}; + +/** Table PERFORMANCE_SCHEMA.EVENTS_WAITS_HISTORY_LONG. */ +class table_events_waits_history_long : public table_events_waits_common +{ +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: + table_events_waits_history_long(); + +public: + ~table_events_waits_history_long() + {} + +private: + /** Table share lock. */ + static THR_LOCK m_table_lock; + + /** Current position. */ + PFS_simple_index m_pos; + /** Next position. */ + PFS_simple_index m_next_pos; +}; + +/** @} */ +#endif |