127 lines
3.6 KiB
C
127 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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/*%% (c) Copyright 1993, 1994 Hewlett-Packard Company */
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/*%% (c) Copyright 1993, 1994 International Business Machines Corp. */
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/*%% (c) Copyright 1993, 1994 Sun Microsystems, Inc. */
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/*%% (c) Copyright 1993, 1994 Novell, Inc. */
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/*%% $XConsortium: iswrite.c /main/3 1995/10/23 11:46:15 rswiston $ */
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/*
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* Copyright (c) 1988 by Sun Microsystems, Inc.
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*/
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/*
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* iswrite.c
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*
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* Description:
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* Write a record to ISAM file.
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*/
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#include "isam_impl.h"
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#include <sys/file.h>
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#include <sys/time.h>
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static int _am_write(Fab *fab, char *record, int reclen,
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Bytearray *curpos, Recno *recnum);
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/*
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* err = iswrite(isfd, record)
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*
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* Iswrite() adds a new record to an ISAM file. All indexes of the ISAM
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* file are updated.
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*
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* Current record position is not changed.
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* isrecnum is set to indicate the new record.
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*
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* If the ISAM file is for variable length records, the isreclen variable
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* must be set to indicate the actual length of the record, which must
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* be between the minimum and maximum length, as specified in isbuild().
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*
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* Returns 0 if successful, or -1 of any error.
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*
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* Errors:
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* EDUPL The write woul result in a duplicate on a key that
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* does not allow duplicates.
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* ELOCKED The file has been locked by another process.
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* ENOTOPEN isfd does not correspond to an open ISAM file, or the
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* ISAM file was opened with ISINPUT mode.
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* EBADARG Unacceptable value of isreclen for variable length record.
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*/
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int
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iswrite(int isfd, char *record)
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{
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Fab *fab;
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int reclen;
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Recno recnum;
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Bytearray curpos;
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int ret;
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/*
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* Get File Access Block.
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*/
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if ((fab = _isfd_find(isfd)) == NULL) {
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_setiserrno2(ENOTOPEN, '9', '0');
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return (ISERROR);
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}
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/*
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* Check that the open mode was ISOUTPUT, or ISINOUT.
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*/
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if (fab->openmode != OM_OUTPUT && fab->openmode != OM_INOUT) {
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_setiserrno2(ENOTOPEN, '9', '0');
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return (ISERROR);
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}
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/*
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* Determine record length. Check it against min and max record length.
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*/
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reclen = (fab->varlength == TRUE) ? isreclen : fab->minreclen;
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if (reclen < fab->minreclen || reclen > fab->maxreclen) {
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_setiserrno2(EBADARG, '9', '0');
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return (ISERROR);
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}
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/*
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* Call the Access Method
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*/
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curpos = _bytearr_dup(&fab->curpos);
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if ((ret = _am_write(fab, record, reclen, &curpos, &recnum)) == ISOK) {
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isrecnum = recnum; /* Set isrecnum */
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}
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_bytearr_free(&curpos);
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_seterr_errcode(&fab->errcode);
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return (ret); /* Successful write */
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}
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Static int _am_write(Fab *fab, char *record, int reclen,
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Bytearray *curpos, Recno *recnum)
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{
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return (_amwrite(&fab->isfhandle, record, reclen,
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curpos, recnum, &fab->errcode));
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}
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