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instr_time.h File Reference

#include <time.h>

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Data Structures

struct instr_time

Macros

#define NS_PER_S INT64CONST(1000000000)

#define NS_PER_MS INT64CONST(1000000)

#define NS_PER_US INT64CONST(1000)

#define PG_INSTR_CLOCK CLOCK_REALTIME

#define INSTR_TIME_SET_CURRENT(t) ((t) = pg_clock_gettime_ns())

#define INSTR_TIME_GET_NANOSEC(t) ((int64) (t).ticks)

#define INSTR_TIME_IS_ZERO(t) ((t).ticks == 0)

#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0)

#define INSTR_TIME_SET_CURRENT_LAZY(t) (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false)

#define INSTR_TIME_ADD(x, y) ((x).ticks += (y).ticks)

#define INSTR_TIME_SUBTRACT(x, y) ((x).ticks -= (y).ticks)

#define INSTR_TIME_ACCUM_DIFF(x, y, z) ((x).ticks += (y).ticks - (z).ticks)

#define INSTR_TIME_GET_DOUBLE(t) ((double) INSTR_TIME_GET_NANOSEC(t) / NS_PER_S)

#define INSTR_TIME_GET_MILLISEC(t) ((double) INSTR_TIME_GET_NANOSEC(t) / NS_PER_MS)

#define INSTR_TIME_GET_MICROSEC(t) (INSTR_TIME_GET_NANOSEC(t) / NS_PER_US)

Typedefs

typedef struct instr_time instr_time

Functions

static instr_time pg_clock_gettime_ns (void)

Macro Definition Documentation

◆ INSTR_TIME_ACCUM_DIFF

#define INSTR_TIME_ACCUM_DIFF ( x,

y,

z

) ((x).ticks += (y).ticks - (z).ticks)

Definition at line 184 of file instr_time.h.

◆ INSTR_TIME_ADD

#define INSTR_TIME_ADD ( x,

y

) ((x).ticks += (y).ticks)

Definition at line 178 of file instr_time.h.

◆ INSTR_TIME_GET_DOUBLE

#define INSTR_TIME_GET_DOUBLE ( t ) ((double) INSTR_TIME_GET_NANOSEC(t) / NS_PER_S)

Definition at line 188 of file instr_time.h.

◆ INSTR_TIME_GET_MICROSEC

#define INSTR_TIME_GET_MICROSEC ( t ) (INSTR_TIME_GET_NANOSEC(t) / NS_PER_US)

Definition at line 194 of file instr_time.h.

◆ INSTR_TIME_GET_MILLISEC

#define INSTR_TIME_GET_MILLISEC ( t ) ((double) INSTR_TIME_GET_NANOSEC(t) / NS_PER_MS)

Definition at line 191 of file instr_time.h.

◆ INSTR_TIME_GET_NANOSEC

#define INSTR_TIME_GET_NANOSEC ( t ) ((int64) (t).ticks)

Definition at line 125 of file instr_time.h.

◆ INSTR_TIME_IS_ZERO

#define INSTR_TIME_IS_ZERO ( t ) ((t).ticks == 0)

Definition at line 169 of file instr_time.h.

◆ INSTR_TIME_SET_CURRENT

#define INSTR_TIME_SET_CURRENT ( t ) ((t) = pg_clock_gettime_ns())

Definition at line 122 of file instr_time.h.

◆ INSTR_TIME_SET_CURRENT_LAZY

#define INSTR_TIME_SET_CURRENT_LAZY ( t ) (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false)

Definition at line 174 of file instr_time.h.

◆ INSTR_TIME_SET_ZERO

#define INSTR_TIME_SET_ZERO ( t ) ((t).ticks = 0)

Definition at line 172 of file instr_time.h.

◆ INSTR_TIME_SUBTRACT

#define INSTR_TIME_SUBTRACT ( x,

y

) ((x).ticks -= (y).ticks)

Definition at line 181 of file instr_time.h.

◆ NS_PER_MS

#define NS_PER_MS INT64CONST(1000000)

Definition at line 78 of file instr_time.h.

◆ NS_PER_S

#define NS_PER_S INT64CONST(1000000000)

Definition at line 77 of file instr_time.h.

◆ NS_PER_US

#define NS_PER_US INT64CONST(1000)

Definition at line 79 of file instr_time.h.

◆ PG_INSTR_CLOCK

#define PG_INSTR_CLOCK CLOCK_REALTIME

Definition at line 106 of file instr_time.h.

Typedef Documentation

◆ instr_time

typedef struct instr_time instr_time

Function Documentation

◆ pg_clock_gettime_ns()

static instr_time pg_clock_gettime_ns ( void )

inlinestatic

Definition at line 111 of file instr_time.h.

112{

113 instr_time now;

114 struct timespec tmp;

115

116 clock_gettime(PG_INSTR_CLOCK, &tmp);

117 now.ticks = tmp.tv_sec * NS_PER_S + tmp.tv_nsec;

118

119 return now;

120}

now

Datum now(PG_FUNCTION_ARGS)

Definition: timestamp.c:1609

NS_PER_S

#define NS_PER_S

Definition: instr_time.h:77

PG_INSTR_CLOCK

#define PG_INSTR_CLOCK

Definition: instr_time.h:106

instr_time

Definition: instr_time.h:70

References now(), NS_PER_S, and PG_INSTR_CLOCK.