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/*-
* Copyright (c) 1993, 1994
* The Regents of the University of California. All rights reserved.
* Copyright (c) 1993, 1994, 1995, 1996
* Keith Bostic. All rights reserved.
*
* See the LICENSE file for redistribution information.
*/
#include "config.h"
#ifndef lint
static const char sccsid[] = "$Id: ex_preserve.c,v 10.15 2001/06/25 15:19:18 skimo Exp $";
#endif /* not lint */
#include <sys/types.h>
#include <sys/queue.h>
#include <sys/time.h>
#include <bitstring.h>
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <string.h>
#include "../common/common.h"
/*
* ex_preserve -- :pre[serve]
* Push the file to recovery.
*
* PUBLIC: int ex_preserve __P((SCR *, EXCMD *));
*/
int
ex_preserve(SCR *sp, EXCMD *cmdp)
{
recno_t lno;
NEEDFILE(sp, cmdp);
if (!F_ISSET(sp->ep, F_RCV_ON)) {
msgq(sp, M_ERR, "142|Preservation of this file not possible");
return (1);
}
/* If recovery not initialized, do so. */
if (F_ISSET(sp->ep, F_FIRSTMODIFY) && rcv_init(sp))
return (1);
/* Force the file to be read in, in case it hasn't yet. */
if (db_last(sp, &lno))
return (1);
/* Sync to disk. */
if (rcv_sync(sp, RCV_SNAPSHOT))
return (1);
msgq(sp, M_INFO, "143|File preserved");
return (0);
}
/*
* ex_recover -- :rec[over][!] file
* Recover the file.
*
* PUBLIC: int ex_recover __P((SCR *, EXCMD *));
*/
int
ex_recover(SCR *sp, EXCMD *cmdp)
{
ARGS *ap;
FREF *frp;
char *np;
size_t nlen;
ap = cmdp->argv[0];
/* Set the alternate file name. */
INT2CHAR(sp, ap->bp, ap->len+1, np, nlen);
set_alt_name(sp, np);
/*
* Check for modifications. Autowrite did not historically
* affect :recover.
*/
if (file_m2(sp, FL_ISSET(cmdp->iflags, E_C_FORCE)))
return (1);
/* Get a file structure for the file. */
INT2CHAR(sp, ap->bp, ap->len+1, np, nlen);
if ((frp = file_add(sp, np)) == NULL)
return (1);
/* Set the recover bit. */
F_SET(frp, FR_RECOVER);
/* Switch files. */
if (file_init(sp, frp, NULL, FS_SETALT |
(FL_ISSET(cmdp->iflags, E_C_FORCE) ? FS_FORCE : 0)))
return (1);
F_SET(sp, SC_FSWITCH);
return (0);
}
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