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40 lines
867 B
C
40 lines
867 B
C
/*-
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* See the file LICENSE for redistribution information.
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*
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* Copyright (c) 1996, 1997, 1998
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* Sleepycat Software. All rights reserved.
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*/
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#include "config.h"
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#ifndef lint
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static const char sccsid[] = "@(#)lock_conflict.c 10.4 (Sleepycat) 11/20/98";
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#endif /* not lint */
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#ifndef NO_SYSTEM_INCLUDES
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#include <sys/types.h>
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#endif
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#include "db_int.h"
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/*
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* The conflict arrays are set up such that the row is the lock you
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* are holding and the column is the lock that is desired.
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*/
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const u_int8_t db_rw_conflicts[] = {
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/* N R W */
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/* N */ 0, 0, 0,
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/* R */ 0, 0, 1,
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/* W */ 0, 1, 1
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};
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const u_int8_t db_riw_conflicts[] = {
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/* N S X IX IS SIX */
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/* N */ 0, 0, 0, 0, 0, 0,
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/* S */ 0, 0, 1, 1, 0, 1,
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/* X */ 1, 1, 1, 1, 1, 1,
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/* IX */ 0, 1, 1, 0, 0, 0,
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/* IS */ 0, 0, 1, 0, 0, 0,
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/* SIX */ 0, 1, 1, 0, 0, 0
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};
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