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/*--------------------------------------------------------------------
* Symbols referenced in this file:
* - buildoidvector
*--------------------------------------------------------------------
*/
/*-------------------------------------------------------------------------
*
* oid.c
* Functions for the built-in type Oid ... also oidvector.
*
* Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* src/backend/utils/adt/oid.c
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include <ctype.h>
#include <limits.h>
#include "catalog/pg_type.h"
#include "common/int.h"
#include "libpq/pqformat.h"
#include "nodes/miscnodes.h"
#include "nodes/value.h"
#include "utils/array.h"
#include "utils/builtins.h"
#define OidVectorSize(n) (offsetof(oidvector, values) + (n) * sizeof(Oid))
/*****************************************************************************
* USER I/O ROUTINES *
*****************************************************************************/
/*
* oidrecv - converts external binary format to oid
*/
/*
* oidsend - converts oid to binary format
*/
/*
* construct oidvector given a raw array of Oids
*
* If oids is NULL then caller must fill values[] afterward
*/
oidvector *
buildoidvector(const Oid *oids, int n)
{
oidvector *result;
result = (oidvector *) palloc0(OidVectorSize(n));
if (n > 0 && oids)
memcpy(result->values, oids, n * sizeof(Oid));
/*
* Attach standard array header. For historical reasons, we set the index
* lower bound to 0 not 1.
*/
SET_VARSIZE(result, OidVectorSize(n));
result->ndim = 1;
result->dataoffset = 0; /* never any nulls */
result->elemtype = OIDOID;
result->dim1 = n;
result->lbound1 = 0;
return result;
}
/*
* validate that an array object meets the restrictions of oidvector
*
* We need this because there are pathways by which a general oid[] array can
* be cast to oidvector, allowing the type's restrictions to be violated.
* All code that receives an oidvector as a SQL parameter should check this.
*/
/*
* oidvectorin - converts "num num ..." to internal form
*/
/*
* oidvectorout - converts internal form to "num num ..."
*/
/*
* oidvectorrecv - converts external binary format to oidvector
*/
/*
* oidvectorsend - converts oidvector to binary format
*/
/*
* oidparse - get OID from ICONST/FCONST node
*/
/* qsort comparison function for Oids */
/*****************************************************************************
* PUBLIC ROUTINES *
*****************************************************************************/