2 * CDE - Common Desktop Environment
4 * Copyright (c) 1993-2012, The Open Group. All rights reserved.
6 * These libraries and programs are free software; you can
7 * redistribute them and/or modify them under the terms of the GNU
8 * Lesser General Public License as published by the Free Software
9 * Foundation; either version 2 of the License, or (at your option)
12 * These libraries and programs are distributed in the hope that
13 * they will be useful, but WITHOUT ANY WARRANTY; without even the
14 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU Lesser General Public License for more
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with these libraries and programs; if not, write
20 * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
21 * Floor, Boston, MA 02110-1301 USA
23 /* $XConsortium: findpm.c /main/2 1996/05/09 04:06:57 drk $ */
25 * COMPONENT_NAME: austext
31 * OBJECT CODE ONLY SOURCE MATERIALS
33 /*-----------------------------------------------------------------------
34 findpm.c -- db_VISTA find previous member module
36 (C) Copyright 1987 by Raima Corp.
37 -----------------------------------------------------------------------*/
39 /* ********************** EDIT HISTORY *******************************
41 SCR DATE INI DESCRIPTION
42 ----- --------- --- -----------------------------------------------------
43 04-Aug-88 RTK MULTI_TASK changes
50 /* Find previous member of set
53 d_findpm(int nset, int dbn)
62 DB_ENTER(DB_ID TASK_ID LOCK_SET(SET_IO));
64 if (nset_check(nset, &set, (SET_ENTRY * *)&set_ptr) != S_OKAY)
67 /* make sure we have a current owner */
68 if ( ! curr_own[set] )
69 RETURN( dberr(S_NOCO) );
71 /* find last member if no current member */
72 if ( !*(cm_ptr = &curr_mem[set]) )
73 RETURN( d_findlm(nset , dbn) );
75 /* read current member of set and get member pointer from record */
76 if ((dio_read(*cm_ptr, (char * *)&recp, NOPGHOLD) != S_OKAY) ||
77 (r_gmem(set, recp, memp) != S_OKAY))
80 /* extract address of previous member */
81 bytecpy( &mem, memp+MP_PREV, DB_ADDR_SIZE);
83 /* set current record and member */
86 if ( ! mem ) /* end of set */
87 RETURN( db_status = S_EOS );
90 RETURN( db_status = S_OKAY );
92 /* vpp -nOS2 -dUNIX -nBSD -nVANILLA_BSD -nVMS -nMEMLOCK -nWINDOWS -nFAR_ALLOC -f/usr/users/master/config/nonwin findpm.c */