106 lines
3.6 KiB
C
106 lines
3.6 KiB
C
/*
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* CDE - Common Desktop Environment
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*
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* Copyright (c) 1993-2012, The Open Group. All rights reserved.
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*
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* These libraries and programs are free software; you can
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* redistribute them and/or modify them under the terms of the GNU
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* Lesser General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* These libraries and programs are distributed in the hope that
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* they will be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with these libraries and programs; if not, write
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* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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* Floor, Boston, MA 02110-1301 USA
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*/
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/* $XConsortium: recset.c /main/2 1996/05/09 04:15:34 drk $ */
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/*
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* COMPONENT_NAME: austext
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*
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* FUNCTIONS: d_recset
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*
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* ORIGINS: 157
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*
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* OBJECT CODE ONLY SOURCE MATERIALS
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*/
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/*-----------------------------------------------------------------------
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recset.c - set record type and database address to current.
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This function sets the current record type and database address to the
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current record. It is used in conjunction with d_recnext to then scan
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forward from this point on.
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AUTHOR: R.S. Carlson
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DATE: 21-Jun-88
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PROJECT: db_VISTA 3.10 enhancements
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Copyright (C) 1988 by Raima Corporation
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-----------------------------------------------------------------------*/
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/* ********************** EDIT HISTORY *******************************
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SCR DATE INI DESCRIPTION
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----- --------- --- -----------------------------------------------------
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04-Aug-88 RTK MULTI_TASK changes
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18-Aug-88 RSC moved rn_type/dba to separate table
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*/
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/* ********************** INCLUDE FILES ****************************** */
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#include <stdio.h>
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#include "vista.h"
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#include "dbtype.h"
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/* ********************** GLOBAL VARIABLE DECLARATIONS *************** */
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/* ********************** GLOBAL FUNCTION DECLARATIONS *************** */
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/* ********************** EXTERNAL VARIABLE DECLARATIONS ************* */
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/* ********************** EXTERNAL FUNCTION DECLARATIONS ************* */
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/* ********************** LOCAL VARIABLE DECLARATIONS **************** */
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/* ********************** LOCAL FUNCTION DECLARATIONS **************** */
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/* ======================================================================
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set record type and database address to current
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*/
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int d_recset(
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int rec, /* record type */
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int dbn
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)
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{
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/*
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RETURNS: db_status return code.
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ASSUMES: nothing.
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*/
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FILE_NO rfile; /* file containing user specified rec */
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FILE_NO fno; /* file containing current record */
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int rec_ndx; /* Index into record table */
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RECORD_ENTRY *rec_ptr; /* Pointer to record table */
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DB_ENTER(DB_ID TASK_ID LOCK_SET(RECORD_NOIO));
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/* Check rec parameter user passed */
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if (nrec_check(rec, &rec_ndx, (RECORD_ENTRY * *)&rec_ptr) != S_OKAY)
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RETURN( db_status );
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/* Check to make sure current record is in this file */
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rfile = (FILE_NO)(NUM2EXT(rec_ptr->rt_file, ft_offset));
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fno = (FILE_NO)((curr_rec >> FILESHIFT) & FILEMASK);
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if (fno != rfile)
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RETURN( dberr (S_INVREC) );
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/* Everything is okay - save the type and database address */
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RN_REF(rn_type) = rec - RECMARK;
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RN_REF(rn_dba) = curr_rec;
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RETURN( db_status = S_OKAY );
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}
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/* vpp -nOS2 -dUNIX -nBSD -nVANILLA_BSD -nVMS -nMEMLOCK -nWINDOWS -nFAR_ALLOC -f/usr/users/master/config/nonwin recset.c */
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