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62e2a8dc2c
In 83ff1618 we defined integer limits iff they're not provided by the system. That turns out not to be the greatest idea because there's different ways some datatypes can be represented. E.g. on OSX PG's 64bit datatype will be a 'long int', but OSX unconditionally uses 'long long'. That disparity then can lead to warnings, e.g. around printf formats. One way to fix that would be to back int64 using stdint.h's int64_t. While a good idea it's not that easy to implement. We would e.g. need to include stdint.h in our external headers, which we don't today. Also computing the correct int64 printf formats in that case is nontrivial. Instead simply prefix the integer limits with PG_ and define them unconditionally. I've adjusted all the references to them in code, but not the ones in comments; the latter seems unnecessary to me. Discussion: 20150331141423.GK4878@alap3.anarazel.de
74 lines
2.8 KiB
C
74 lines
2.8 KiB
C
/*-------------------------------------------------------------------------
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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) 2001-2015, PostgreSQL Global Development Group
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*
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* src/include/executor/instrument.h
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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 "portability/instr_time.h"
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typedef struct BufferUsage
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{
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long shared_blks_hit; /* # of shared buffer hits */
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long shared_blks_read; /* # of shared disk blocks read */
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long shared_blks_dirtied; /* # of shared blocks dirtied */
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long shared_blks_written; /* # of shared disk blocks written */
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long local_blks_hit; /* # of local buffer hits */
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long local_blks_read; /* # of local disk blocks read */
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long local_blks_dirtied; /* # of shared blocks dirtied */
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long local_blks_written; /* # of local disk blocks written */
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long temp_blks_read; /* # of temp blocks read */
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long temp_blks_written; /* # of temp blocks written */
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instr_time blk_read_time; /* time spent reading */
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instr_time blk_write_time; /* time spent writing */
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} BufferUsage;
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/* Flag bits included in InstrAlloc's instrument_options bitmask */
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typedef enum InstrumentOption
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{
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INSTRUMENT_TIMER = 1 << 0, /* needs timer (and row counts) */
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INSTRUMENT_BUFFERS = 1 << 1, /* needs buffer usage */
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INSTRUMENT_ROWS = 1 << 2, /* needs row count */
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INSTRUMENT_ALL = PG_INT32_MAX
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} InstrumentOption;
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typedef struct Instrumentation
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{
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/* Parameters set at node creation: */
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bool need_timer; /* TRUE if we need timer data */
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bool need_bufusage; /* TRUE if we need buffer usage data */
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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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instr_time starttime; /* Start time of current iteration of node */
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instr_time counter; /* Accumulated runtime for this node */
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double firsttuple; /* Time for first tuple of this cycle */
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double tuplecount; /* Tuples emitted so far this cycle */
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BufferUsage bufusage_start; /* Buffer usage at start */
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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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double nfiltered1; /* # tuples removed by scanqual or joinqual */
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double nfiltered2; /* # tuples removed by "other" quals */
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BufferUsage bufusage; /* Total buffer usage */
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} Instrumentation;
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extern PGDLLIMPORT BufferUsage pgBufferUsage;
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extern Instrumentation *InstrAlloc(int n, int instrument_options);
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extern void InstrStartNode(Instrumentation *instr);
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extern void InstrStopNode(Instrumentation *instr, double nTuples);
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extern void InstrEndLoop(Instrumentation *instr);
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#endif /* INSTRUMENT_H */
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