Function lookupVariable

src/bin/pgbench/pgbench.c:1434–1458

Locate a variable by name; returns NULL if unknown */

/* Locate a variable by name; returns NULL if unknown */
static Variable *
lookupVariable(CState *st, char *name)
{
	Variable	key;

	/* On some versions of Solaris, bsearch of zero items dumps core */
	if (st->nvariables <= 0)
		return NULL;

	/* Sort if we have to */
	if (!st->vars_sorted)
	{
		qsort((void *) st->variables, st->nvariables, sizeof(Variable),
			  compareVariableNames);
		st->vars_sorted = true;
	}

	/* Now we can search */
	key.name = name;
	return (Variable *) bsearch((void *) &key,
								(void *) st->variables,
								st->nvariables,
								sizeof(Variable),
								compareVariableNames);
}

/* Get the value of a variable, in string form; returns NULL if unknown */
static char *