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/*-------------------------------------------------------------------------
*
* fcache.c
* Code for the 'function cache' used in Oper and Func nodes.
*
*
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/cache/Attic/fcache.c,v 1.45 2002/06/20 20:29:39 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "miscadmin.h"
#include "utils/acl.h"
#include "utils/fcache.h"
#include "utils/lsyscache.h"
/*
* Build a 'FunctionCache' struct given the PG_PROC oid.
*/
FunctionCachePtr
init_fcache(Oid foid, int nargs, MemoryContext fcacheCxt)
{
FunctionCachePtr retval;
AclResult aclresult;
/* Check permission to call function */
aclresult = pg_proc_aclcheck(foid, GetUserId(), ACL_EXECUTE);
if (aclresult != ACLCHECK_OK)
aclcheck_error(aclresult, get_func_name(foid));
/* Safety check (should never fail, as parser should check sooner) */
if (nargs > FUNC_MAX_ARGS)
elog(ERROR, "init_fcache: too many arguments");
/* Create fcache entry in the desired context */
retval = (FunctionCachePtr) MemoryContextAlloc(fcacheCxt,
sizeof(FunctionCache));
MemSet(retval, 0, sizeof(FunctionCache));
/* Set up the primary fmgr lookup information */
fmgr_info_cxt(foid, &(retval->func), fcacheCxt);
/* Initialize additional info */
retval->setArgsValid = false;
return retval;
}
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