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Code review for SHOW output changes; fix horology expected files for

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new SHOW output format.
This commit is contained in:
Tom Lane
2002-07-20 15:12:56 +00:00
parent a58930bbd5
commit c33a6343cd
8 changed files with 105 additions and 68 deletions
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69
src/backend/utils/misc/guc.c
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@ -5,7 +5,7 @@
* command, configuration file, and command line options.
* See src/backend/utils/misc/README for more information.
*
* $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.74 2002/07/20 06:17:43 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.75 2002/07/20 15:12:55 tgl Exp $
*
* Copyright 2000 by PostgreSQL Global Development Group
* Written by Peter Eisentraut <peter_e@gmx.net>.
@ -2185,13 +2185,13 @@ set_config_by_name(PG_FUNCTION_ARGS)
elog(ERROR, "SET variable name is required");
/* Get the GUC variable name */
name = DatumGetCString(DirectFunctionCall1(textout, PointerGetDatum(PG_GETARG_TEXT_P(0))));
name = DatumGetCString(DirectFunctionCall1(textout, PG_GETARG_DATUM(0)));
/* Get the desired value or set to NULL for a reset request */
if (PG_ARGISNULL(1))
value = NULL;
else
value = DatumGetCString(DirectFunctionCall1(textout, PointerGetDatum(PG_GETARG_TEXT_P(1))));
value = DatumGetCString(DirectFunctionCall1(textout, PG_GETARG_DATUM(1)));
/*
* Get the desired state of is_local. Default to false
@ -2211,7 +2211,7 @@ set_config_by_name(PG_FUNCTION_ARGS)
true);
/* get the new current value */
new_value = GetConfigOptionByName(name);
new_value = GetConfigOptionByName(name, NULL);
/* Convert return string to text */
result_text = DatumGetTextP(DirectFunctionCall1(textin, CStringGetDatum(new_value)));
@ -2259,21 +2259,22 @@ ShowGUCConfigOption(const char *name)
TupOutputState *tstate;
TupleDesc tupdesc;
CommandDest dest = whereToSendOutput;
const char *varname;
char *value;
/* Get the value and canonical spelling of name */
value = GetConfigOptionByName(name, &varname);
/* need a tuple descriptor representing a single TEXT column */
tupdesc = CreateTemplateTupleDesc(1, WITHOUTOID);
TupleDescInitEntry(tupdesc, (AttrNumber) 1, (char *) name,
TupleDescInitEntry(tupdesc, (AttrNumber) 1, (char *) varname,
TEXTOID, -1, 0, false);
/* prepare for projection of tuples */
tstate = begin_tup_output_tupdesc(dest, tupdesc);
/* Get the value */
value = GetConfigOptionByName(name);
/* Send it */
PROJECT_LINE_OF_TEXT(value);
PROJECT_LINE_OF_TEXT(tstate, value);
end_tup_output(tstate);
}
@ -2288,8 +2289,6 @@ ShowAllGUCConfig(void)
TupOutputState *tstate;
TupleDesc tupdesc;
CommandDest dest = whereToSendOutput;
char *name;
char *value;
char *values[2];
/* need a tuple descriptor representing two TEXT columns */
@ -2304,35 +2303,32 @@ ShowAllGUCConfig(void)
for (i = 0; i < num_guc_variables; i++)
{
/* Get the next GUC variable name and value */
value = GetConfigOptionByNum(i, &name);
struct config_generic *conf = guc_variables[i];
if (conf->flags & GUC_NO_SHOW_ALL)
continue;
/* assign to the values array */
values[0] = name;
values[1] = value;
values[0] = (char *) conf->name;
values[1] = _ShowOption(conf);
/* send it to dest */
do_tup_output(tstate, values);
/*
* clean up
*/
/* we always should have a name */
pfree(name);
/* but value can be returned to us as a NULL */
if (value != NULL)
pfree(value);
/* clean up */
if (values[1] != NULL)
pfree(values[1]);
}
end_tup_output(tstate);
}
/*
* Return GUC variable value by name
* Return GUC variable value by name; optionally return canonical
* form of name. Return value is palloc'd.
*/
char *
GetConfigOptionByName(const char *name)
GetConfigOptionByName(const char *name, const char **varname)
{
struct config_generic *record;
@ -2340,24 +2336,25 @@ GetConfigOptionByName(const char *name)
if (record == NULL)
elog(ERROR, "Option '%s' is not recognized", name);
if (varname)
*varname = record->name;
return _ShowOption(record);
}
/*
* Return GUC variable value and set varname for a specific
* variable by number.
* Return GUC variable value by variable number; optionally return canonical
* form of name. Return value is palloc'd.
*/
char *
GetConfigOptionByNum(int varnum, char **varname)
GetConfigOptionByNum(int varnum, const char **varname)
{
struct config_generic *conf = guc_variables[varnum];
*varname = pstrdup(conf->name);
if (varname)
*varname = conf->name;
if ((conf->flags & GUC_NO_SHOW_ALL) == 0)
return _ShowOption(conf);
else
return NULL;
return _ShowOption(conf);
}
/*
@ -2381,10 +2378,10 @@ show_config_by_name(PG_FUNCTION_ARGS)
text *result_text;
/* Get the GUC variable name */
varname = DatumGetCString(DirectFunctionCall1(textout, PointerGetDatum(PG_GETARG_TEXT_P(0))));
varname = DatumGetCString(DirectFunctionCall1(textout, PG_GETARG_DATUM(0)));
/* Get the value */
varval = GetConfigOptionByName(varname);
varval = GetConfigOptionByName(varname, NULL);
/* Convert to text */
result_text = DatumGetTextP(DirectFunctionCall1(textin, CStringGetDatum(varval)));