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cde/cde/lib/tt/mini_isam/issync.c
2018-06-28 04:06:47 +01:00

132 lines
3 KiB
C

/*
* CDE - Common Desktop Environment
*
* Copyright (c) 1993-2012, The Open Group. All rights reserved.
*
* These libraries and programs are free software; you can
* redistribute them and/or modify them under the terms of the GNU
* Lesser General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* These libraries and programs are distributed in the hope that
* they will be useful, but WITHOUT ANY WARRANTY; without even the
* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with these libraries and programs; if not, write
* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
* Floor, Boston, MA 02110-1301 USA
*/
/*%% (c) Copyright 1993, 1994 Hewlett-Packard Company */
/*%% (c) Copyright 1993, 1994 International Business Machines Corp. */
/*%% (c) Copyright 1993, 1994 Sun Microsystems, Inc. */
/*%% (c) Copyright 1993, 1994 Novell, Inc. */
/*%% $XConsortium: issync.c /main/3 1995/10/23 11:45:20 rswiston $ */
#ifndef lint
static char sccsid[] = "@(#)issync.c 1.7 89/07/17 Copyr 1988 Sun Micro";
#endif
/*
* Copyright (c) 1988 by Sun Microsystems, Inc.
*/
/*
* issync.c
*
* Description:
* Sync all kernel buffers to the disk.
*
* Note: issync() flushes changed kernel buffers that are local to
* the application that issued the call.
*
* See sync(2) UNIX manual for what actually happens if sync() is called.
*/
#include "isam_impl.h"
#include <sys/file.h>
#include <sys/time.h>
/*
* int issync()
*/
int
issync(void)
{
return iscntl(ALLISFD, ISCNTL_FSYNC);
}
/*
* int isfsync(fd)
*/
int
isfsync(int isfd)
{
return iscntl(isfd, ISCNTL_FSYNC);
}
int _issync(void)
{
int i;
for (i = 0; i < MAXISFD; i++)
(void)_isfsync(i);
return (ISOK);
}
int _isfsync(int isfd)
{
register Fab *fab;
Fcb *fcb;
int ret;
/*
* Get File Access Block.
*/
if ((fab = _isfd_find(isfd)) == NULL) {
_setiserrno2(ENOTOPEN, '9', '0');
return (ISERROR);
}
/*
* Check that the open mode was ISINPUT, or ISINOUT.
*/
if (fab->openmode != OM_INPUT && fab->openmode != OM_INOUT) {
_setiserrno2(ENOTOPEN, '9', '0');
return (ISERROR);
}
_isam_entryhook();
/*
* Get FCB corresponding to the isfhandle handle.
*/
if ((fcb = _openfcb(&fab->isfhandle, &fab->errcode)) == NULL) {
_isam_exithook();
ret = ISERROR;
}
else {
if (fcb->datfd != -1)
(void)fsync(fcb->datfd);
if (fcb->indfd != -1)
(void)fsync(fcb->indfd);
if (fcb->varfd != -1)
(void)fsync(fcb->varfd);
_amseterrcode(&fab->errcode, ISOK);
_isam_exithook();
ret = ISOK;
}
_seterr_errcode(&fab->errcode);
return (ret); /* Successful write */
}