2 * Copyright (c) 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 * Copyright (c) 1993, 1994, 1995, 1996
5 * Keith Bostic. All rights reserved.
7 * See the LICENSE file for redistribution information.
13 static const char sccsid[] = "$Id: ex_preserve.c,v 10.15 2001/06/25 15:19:18 skimo Exp $";
16 #include <sys/types.h>
17 #include <sys/queue.h>
20 #include <bitstring.h>
26 #include "../common/common.h"
29 * ex_preserve -- :pre[serve]
30 * Push the file to recovery.
32 * PUBLIC: int ex_preserve(SCR *, EXCMD *);
35 ex_preserve(SCR *sp, EXCMD *cmdp)
41 if (!F_ISSET(sp->ep, F_RCV_ON)) {
42 msgq(sp, M_ERR, "142|Preservation of this file not possible");
46 /* If recovery not initialized, do so. */
47 if (F_ISSET(sp->ep, F_FIRSTMODIFY) && rcv_init(sp))
50 /* Force the file to be read in, in case it hasn't yet. */
51 if (db_last(sp, &lno))
55 if (rcv_sync(sp, RCV_SNAPSHOT))
58 msgq(sp, M_INFO, "143|File preserved");
63 * ex_recover -- :rec[over][!] file
66 * PUBLIC: int ex_recover(SCR *, EXCMD *);
69 ex_recover(SCR *sp, EXCMD *cmdp)
78 /* Set the alternate file name. */
79 INT2CHAR(sp, ap->bp, ap->len+1, np, nlen);
83 * Check for modifications. Autowrite did not historically
86 if (file_m2(sp, FL_ISSET(cmdp->iflags, E_C_FORCE)))
89 /* Get a file structure for the file. */
90 INT2CHAR(sp, ap->bp, ap->len+1, np, nlen);
91 if ((frp = file_add(sp, np)) == NULL)
94 /* Set the recover bit. */
95 F_SET(frp, FR_RECOVER);
98 if (file_init(sp, frp, NULL, FS_SETALT |
99 (FL_ISSET(cmdp->iflags, E_C_FORCE) ? FS_FORCE : 0)))
102 F_SET(sp, SC_FSWITCH);