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Diffstat (limited to 'storage/perfschema/table_setup_instruments.h')
-rw-r--r-- | storage/perfschema/table_setup_instruments.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/storage/perfschema/table_setup_instruments.h b/storage/perfschema/table_setup_instruments.h new file mode 100644 index 00000000000..549fe4fa5f9 --- /dev/null +++ b/storage/perfschema/table_setup_instruments.h @@ -0,0 +1,121 @@ +/* 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_SETUP_INSTRUMENTS_H +#define TABLE_SETUP_INSTRUMENTS_H + +/** + @file storage/perfschema/table_setup_instruments.h + Table SETUP_INSTRUMENTS (declarations). +*/ + +#include "pfs_instr_class.h" +#include "pfs_engine_table.h" + +/** + @addtogroup Performance_schema_tables + @{ +*/ + +/** A row of PERFORMANCE_SCHEMA.SETUP_INSTRUMENTS. */ +struct row_setup_instruments +{ + /** Column NAME. */ + const char *m_name; + /** Length in bytes of @c m_name. */ + uint m_name_length; + /** Column ENABLED. */ + bool *m_enabled_ptr; + /** Column TIMED. */ + bool *m_timed_ptr; +}; + +/** Position of a cursor on PERFORMANCE_SCHEMA.SETUP_INSTRUMENTS. */ +struct pos_setup_instruments : public PFS_double_index +{ + static const uint VIEW_MUTEX= 1; + static const uint VIEW_RWLOCK= 2; + static const uint VIEW_COND= 3; + /** Reverved for WL#4674, PERFORMANCE_SCHEMA Setup For Actors. */ + static const uint VIEW_THREAD= 4; + static const uint VIEW_FILE= 5; + + pos_setup_instruments() + : PFS_double_index(VIEW_MUTEX, 1) + {} + + inline void reset(void) + { + m_index_1= VIEW_MUTEX; + m_index_2= 1; + } + + inline bool has_more_view(void) + { return (m_index_1 <= VIEW_FILE); } + + inline void next_view(void) + { + m_index_1++; + m_index_2= 1; + } +}; + +/** Table PERFORMANCE_SCHEMA.SETUP_INSTRUMENTS. */ +class table_setup_instruments : public PFS_engine_table +{ +public: + /** Table share. */ + static PFS_engine_table_share m_share; + static PFS_engine_table* create(); + + 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); + + virtual int update_row_values(TABLE *table, + const unsigned char *old_buf, + unsigned char *new_buf, + Field **fields); + + table_setup_instruments(); + +public: + ~table_setup_instruments() + {} + +private: + void make_row(PFS_instr_class *klass); + + /** Table share lock. */ + static THR_LOCK m_table_lock; + /** Fields definition. */ + static TABLE_FIELD_DEF m_field_def; + + /** Current row. */ + row_setup_instruments m_row; + /** Current position. */ + pos_setup_instruments m_pos; + /** Next position. */ + pos_setup_instruments m_next_pos; +}; + +/** @} */ +#endif |