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Added per thread status variables, after review, patch v1.1.

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jani@rhols221.adsl.netsonic.fi
2004-09-13 16:48:01 +03:00
parent b83af8607a
commit fe23df1a2b
23 changed files with 505 additions and 271 deletions
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61
sql/sql_class.h
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@ -442,6 +442,61 @@ struct system_variables
DATE_TIME_FORMAT *time_format;
};
/* per thread status variables */
typedef struct system_status_var
{
ulong bytes_received;
ulong bytes_sent;
ulong com_other;
ulong com_stat[(uint) SQLCOM_END];
ulong created_tmp_disk_tables;
ulong created_tmp_tables;
ulong ha_commit_count;
ulong ha_delete_count;
ulong ha_read_first_count;
ulong ha_read_last_count;
ulong ha_read_key_count;
ulong ha_read_next_count;
ulong ha_read_prev_count;
ulong ha_read_rnd_count;
ulong ha_read_rnd_next_count;
ulong ha_rollback_count;
ulong ha_update_count;
ulong ha_write_count;
/* KEY_CACHE parts. These are copies of the original */
ulong key_blocks_changed;
ulong key_blocks_used;
ulong key_cache_r_requests;
ulong key_cache_read;
ulong key_cache_w_requests;
ulong key_cache_write;
/* END OF KEY_CACHE parts */
ulong net_big_packet_count;
ulong opened_tables;
ulong select_full_join_count;
ulong select_full_range_join_count;
ulong select_range_count;
ulong select_range_check_count;
ulong select_scan_count;
ulong long_query_count;
ulong filesort_merge_passes;
ulong filesort_range_count;
ulong filesort_rows;
ulong filesort_scan_count;
} STATUS_VAR;
/*
This is used for 'show status'. It must be updated to the last ulong
variable in system_status_var
*/
#define last_system_status_var filesort_scan_count
void free_tmp_table(THD *thd, TABLE *entry);
@ -664,6 +719,7 @@ public:
struct sockaddr_in remote; // client socket address
struct rand_struct rand; // used for authentication
struct system_variables variables; // Changeable local variables
struct system_status_var status_var; // Per thread statistic vars
pthread_mutex_t LOCK_delete; // Locked before thd is deleted
/*
Note that (A) if we set query = NULL, we must at the same time set
@ -1036,6 +1092,7 @@ public:
}
inline CHARSET_INFO *charset() { return variables.character_set_client; }
void update_charset();
void set_status_var_init();
inline void allocate_temporary_memory_pool_for_ps_preparing()
{
@ -1521,3 +1578,7 @@ public:
bool send_data(List<Item> &items);
bool send_eof();
};
/* Functions in sql_class.cc */
void add_to_status(STATUS_VAR *to_var, STATUS_VAR *from_var);