85 lines
2.9 KiB
C
85 lines
2.9 KiB
C
/* $NetBSD: exf.h,v 1.3 2001/03/31 11:37:46 aymeric Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1992, 1993, 1994
|
|
* The Regents of the University of California. All rights reserved.
|
|
* Copyright (c) 1992, 1993, 1994, 1995, 1996
|
|
* Keith Bostic. All rights reserved.
|
|
*
|
|
* See the LICENSE file for redistribution information.
|
|
*
|
|
* @(#)exf.h 10.7 (Berkeley) 7/9/96
|
|
*/
|
|
/* Undo direction. */
|
|
/*
|
|
* exf --
|
|
* The file structure.
|
|
*/
|
|
struct _exf {
|
|
int refcnt; /* Reference count. */
|
|
|
|
/* Underlying database state. */
|
|
DB *db; /* File db structure. */
|
|
char *c_lp; /* Cached line. */
|
|
size_t c_len; /* Cached line length. */
|
|
recno_t c_lno; /* Cached line number. */
|
|
recno_t c_nlines; /* Cached lines in the file. */
|
|
|
|
DB *log; /* Log db structure. */
|
|
char *l_lp; /* Log buffer. */
|
|
size_t l_len; /* Log buffer length. */
|
|
recno_t l_high; /* Log last + 1 record number. */
|
|
recno_t l_cur; /* Log current record number. */
|
|
MARK l_cursor; /* Log cursor position. */
|
|
dir_t lundo; /* Last undo direction. */
|
|
|
|
LIST_HEAD(_markh, _lmark) marks;/* Linked list of file MARK's. */
|
|
|
|
/*
|
|
* XXX
|
|
* Mtime should be a struct timespec, but time_t is more portable.
|
|
*/
|
|
dev_t mdev; /* Device. */
|
|
ino_t minode; /* Inode. */
|
|
time_t mtime; /* Last modification time. */
|
|
|
|
int fcntl_fd; /* Fcntl locking fd; see exf.c. */
|
|
|
|
/*
|
|
* Recovery in general, and these fields specifically, are described
|
|
* in recover.c.
|
|
*/
|
|
#define RCV_PERIOD 120 /* Sync every two minutes. */
|
|
char *rcv_path; /* Recover file name. */
|
|
char *rcv_mpath; /* Recover mail file name. */
|
|
int rcv_fd; /* Locked mail file descriptor. */
|
|
|
|
#define F_DEVSET 0x001 /* mdev/minode fields initialized. */
|
|
#define F_FIRSTMODIFY 0x002 /* File not yet modified. */
|
|
#define F_MODIFIED 0x004 /* File is currently dirty. */
|
|
#define F_MULTILOCK 0x008 /* Multiple processes running, lock. */
|
|
#define F_NOLOG 0x010 /* Logging turned off. */
|
|
#define F_RCV_NORM 0x020 /* Don't delete recovery files. */
|
|
#define F_RCV_ON 0x040 /* Recovery is possible. */
|
|
#define F_UNDO 0x080 /* No change since last undo. */
|
|
u_int8_t flags;
|
|
};
|
|
|
|
/* Flags to db_get(). */
|
|
#define DBG_FATAL 0x001 /* If DNE, error message. */
|
|
#define DBG_NOCACHE 0x002 /* Ignore the front-end cache. */
|
|
|
|
/* Flags to file_init() and file_write(). */
|
|
#define FS_ALL 0x001 /* Write the entire file. */
|
|
#define FS_APPEND 0x002 /* Append to the file. */
|
|
#define FS_FORCE 0x004 /* Force is set. */
|
|
#define FS_OPENERR 0x008 /* Open failed, try it again. */
|
|
#define FS_POSSIBLE 0x010 /* Force could have been set. */
|
|
#define FS_SETALT 0x020 /* Set alternate file name. */
|
|
|
|
/* Flags to rcv_sync(). */
|
|
#define RCV_EMAIL 0x01 /* Send the user email, IFF file modified. */
|
|
#define RCV_ENDSESSION 0x02 /* End the file session. */
|
|
#define RCV_PRESERVE 0x04 /* Preserve backup file, IFF file modified. */
|
|
#define RCV_SNAPSHOT 0x08 /* Snapshot the recovery, and send email. */
|