1/*-
2 * See the file LICENSE for redistribution information.
3 *
4 * Copyright (c) 1996, 1997, 1998
5 *	Sleepycat Software.  All rights reserved.
6 */
7
8#include "config.h"
9
10#ifndef lint
11static const char sccsid[] = "@(#)lock_conflict.c	10.4 (Sleepycat) 11/20/98";
12#endif /* not lint */
13
14#ifndef NO_SYSTEM_INCLUDES
15#include <sys/types.h>
16#endif
17
18#include "db_int.h"
19
20/*
21 * The conflict arrays are set up such that the row is the lock you
22 * are holding and the column is the lock that is desired.
23 */
24const u_int8_t db_rw_conflicts[] = {
25	/*		N   R   W */
26	/*   N */	0,  0,  0,
27	/*   R */	0,  0,  1,
28	/*   W */	0,  1,  1
29};
30
31const u_int8_t db_riw_conflicts[] = {
32	/*		N   	S   	X  	IX  	IS	SIX */
33	/*   N */	0,	0,	0,	0,	0,	0,
34	/*   S */	0,	0,	1,	1,	0,	1,
35	/*   X */	1,	1,	1,	1,	1,	1,
36	/*  IX */	0,	1,	1,	0,	0,	0,
37	/*  IS */	0,	0,	1,	0,	0,	0,
38	/* SIX */	0,	1,	1,	0,	0,	0
39};
40