40 lines
1.3 KiB
C
40 lines
1.3 KiB
C
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/*-------------------------------------------------------------------------
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*
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* instrument.h
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* definitions for run-time statistics collection
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*
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*
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* Copyright (c) 2001, PostgreSQL Global Development Group
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*
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* $Id: instrument.h,v 1.1 2001/09/18 01:59:06 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef INSTRUMENT_H
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#define INSTRUMENT_H
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#include <sys/time.h>
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typedef struct Instrumentation
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{
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/* Info about current plan cycle: */
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bool running; /* TRUE if we've completed first tuple */
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struct timeval starttime; /* Start time of current iteration of node */
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struct timeval counter; /* Accumulates runtime for this node */
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double firsttuple; /* Time for first tuple of this cycle */
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double tuplecount; /* Tuples so far this cycle */
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/* Accumulated statistics across all completed cycles: */
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double startup; /* Total startup time (in seconds) */
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double total; /* Total total time (in seconds) */
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double ntuples; /* Total tuples produced */
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double nloops; /* # of run cycles for this node */
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} Instrumentation;
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extern Instrumentation *InstrAlloc(void);
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extern void InstrStartNode(Instrumentation *instr);
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extern void InstrStopNode(Instrumentation *instr, bool returnedTuple);
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extern void InstrEndLoop(Instrumentation *instr);
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#endif /* INSTRUMENT_H */
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