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Diffstat (limited to 'storage/perfschema/table_file_instances.h')
-rw-r--r-- | storage/perfschema/table_file_instances.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/storage/perfschema/table_file_instances.h b/storage/perfschema/table_file_instances.h new file mode 100644 index 00000000000..fb5298f37b3 --- /dev/null +++ b/storage/perfschema/table_file_instances.h @@ -0,0 +1,90 @@ +/* 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_FILE_INSTANCES_H +#define TABLE_FILE_INSTANCES_H + +/** + @file storage/perfschema/table_file_instances.h + Table FILE_INSTANCES (declarations). +*/ + +#include "pfs_column_types.h" +#include "pfs_engine_table.h" + +/** + @addtogroup Performance_schema_tables + @{ +*/ + +/** A row of PERFORMANCE_SCHEMA.FILE_INSTANCES. */ +struct row_file_instances +{ + /** Column FILE_NAME. */ + const char *m_filename; + /** Length in bytes of @c m_filename. */ + uint m_filename_length; + /** Column EVENT_NAME. */ + const char *m_event_name; + /** Length in bytes of @c m_event_name. */ + uint m_event_name_length; + /** Column OPEN_COUNT. */ + uint m_open_count; +}; + +/** Table PERFORMANCE_SCHEMA.FILE_INSTANCES. */ +class table_file_instances : public PFS_readonly_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); + +private: + virtual int read_row_values(TABLE *table, + unsigned char *buf, + Field **fields, + bool read_all); + + table_file_instances(); + +public: + ~table_file_instances() + {} + +private: + void make_row(PFS_file *pfs); + + /** Table share lock. */ + static THR_LOCK m_table_lock; + /** Fields definition. */ + static TABLE_FIELD_DEF m_field_def; + + /** Current row. */ + row_file_instances m_row; + /** True is the current row exists. */ + bool m_row_exists; + /** Current position. */ + PFS_simple_index m_pos; + /** Next position. */ + PFS_simple_index m_next_pos; +}; + +/** @} */ +#endif |