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