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pg_config.c File Reference

#include "postgres.h"
#include "common/config_info.h"
#include "funcapi.h"
#include "miscadmin.h"
#include "utils/builtins.h"

Include dependency graph for pg_config.c:

Go to the source code of this file.

Functions

Datum pg_config (PG_FUNCTION_ARGS)

Function Documentation

◆ pg_config()

Datum pg_config ( PG_FUNCTION_ARGS )

Definition at line 23 of file pg_config.c.

24{

25 ReturnSetInfo *rsinfo = (ReturnSetInfo *) fcinfo->resultinfo;

26 ConfigData *configdata;

27 size_t configdata_len;

28 int i = 0;

29

30 /* initialize our tuplestore */

31 InitMaterializedSRF(fcinfo, 0);

32

33 configdata = get_configdata(my_exec_path, &configdata_len);

34 for (i = 0; i < configdata_len; i++)

35 {

36 Datum values[2];

37 bool nulls[2];

38

39 memset(values, 0, sizeof(values));

40 memset(nulls, 0, sizeof(nulls));

41

42 values[0] = CStringGetTextDatum(configdata[i].name);

43 values[1] = CStringGetTextDatum(configdata[i].setting);

44

45 tuplestore_putvalues(rsinfo->setResult, rsinfo->setDesc, values, nulls);

46 }

47

48 return (Datum) 0;

49}

values

static Datum values[MAXATTR]

Definition: bootstrap.c:153

CStringGetTextDatum

#define CStringGetTextDatum(s)

Definition: builtins.h:97

get_configdata

ConfigData * get_configdata(const char *my_exec_path, size_t *configdata_len)

Definition: config_info.c:33

InitMaterializedSRF

void InitMaterializedSRF(FunctionCallInfo fcinfo, bits32 flags)

Definition: funcapi.c:76

my_exec_path

char my_exec_path[MAXPGPATH]

Definition: globals.c:81

i

int i

Definition: isn.c:77

Datum

uint64_t Datum

Definition: postgres.h:70

ConfigData

Definition: config_info.h:13

ReturnSetInfo

Definition: execnodes.h:353

ReturnSetInfo::setDesc

TupleDesc setDesc

Definition: execnodes.h:364

ReturnSetInfo::setResult

Tuplestorestate * setResult

Definition: execnodes.h:363

tuplestore_putvalues

void tuplestore_putvalues(Tuplestorestate *state, TupleDesc tdesc, const Datum *values, const bool *isnull)

Definition: tuplestore.c:784

name

const char * name

Definition: wait_event_funcs.c:28

References CStringGetTextDatum, get_configdata(), i, InitMaterializedSRF(), my_exec_path, name, ReturnSetInfo::setDesc, ReturnSetInfo::setResult, tuplestore_putvalues(), and values.