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#ifndef QUERY_RESPONSE_TIME_H
#define QUERY_RESPONSE_TIME_H
/*
Settings for query response time
*/
/*
Maximum string length for (10 ^ (-1 * QRT_STRING_NEGATIVE_POWER_LENGTH)) in text representation.
Example: for 6 is 0.000001
Always 2
Maximum string length for (10 ^ (QRT_STRING_POSITIVE_POWER_LENGTH + 1) - 1) in text representation.
Example: for 7 is 9999999.0
*/
#define QRT_TIME_STRING_POSITIVE_POWER_LENGTH 7
#define QRT_TOTAL_STRING_POSITIVE_POWER_LENGTH 7
/*
Minimum base for log - ALWAYS 2
Maximum base for log:
*/
#define QRT_MAXIMUM_BASE 1000
/*
Filler for whole number (positive power)
Example: for
QRT_POSITIVE_POWER_FILLER ' '
QRT_POSITIVE_POWER_LENGTH 7
and number 7234 result is:
' 7234'
*/
#define QRT_POSITIVE_POWER_FILLER ""
/*
Filler for fractional number. Similiary to whole number
*/
#define QRT_NEGATIVE_POWER_FILLER "0"
/*
Message if time too big for statistic collecting (very long query)
*/
#define QRT_TIME_OVERFLOW "TOO LONG"
#define QRT_DEFAULT_BASE 10
#define QRT_TIME_STRING_LENGTH \
MY_MAX( (QRT_TIME_STRING_POSITIVE_POWER_LENGTH + 1 /* '.' */ + 6 /*QRT_TIME_STRING_NEGATIVE_POWER_LENGTH*/), \
(sizeof(QRT_TIME_OVERFLOW) - 1) )
#define QRT_TOTAL_STRING_LENGTH \
MY_MAX( (QRT_TOTAL_STRING_POSITIVE_POWER_LENGTH + 1 /* '.' */ + 6 /*QRT_TOTAL_STRING_NEGATIVE_POWER_LENGTH*/), \
(sizeof(QRT_TIME_OVERFLOW) - 1) )
extern ST_SCHEMA_TABLE query_response_time_table;
enum QUERY_TYPE
{
ANY= 0, /* Total */
READ= 1, /* Only reads */
WRITE= 2 /* Only writes */
};
#define QUERY_TYPES (QUERY_TYPE::WRITE+1)
typedef class Item COND;
#ifdef HAVE_RESPONSE_TIME_DISTRIBUTION
extern void query_response_time_init();
extern void query_response_time_free();
extern int query_response_time_flush_all();
extern int query_response_time_flush_read();
extern int query_response_time_flush_write();
extern void query_response_time_collect(QUERY_TYPE type, ulonglong query_time);
extern int query_response_time_fill(THD* thd, TABLE_LIST *tables,
COND *cond);
extern int query_response_time_fill_read(THD* thd, TABLE_LIST *tables,
COND *cond);
extern int query_response_time_fill_write(THD* thd, TABLE_LIST *tables,
COND *cond);
extern int query_response_time_fill_read_write(THD* thd, TABLE_LIST *tables,
COND *cond);
extern ulong opt_query_response_time_range_base;
extern my_bool opt_query_response_time_stats;
#endif // HAVE_RESPONSE_TIME_DISTRIBUTION
#endif // QUERY_RESPONSE_TIME_H
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