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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 1996, 1997, 1998, 1999, 2000
* Sleepycat Software. All rights reserved.
*/
#include "db_config.h"
#ifndef lint
static const char revid[] = "$Id: lock_method.c,v 11.5 2000/12/21 19:16:42 bostic Exp $";
#endif /* not lint */
#ifndef NO_SYSTEM_INCLUDES
#include <sys/types.h>
#include <string.h>
#endif
#include "db_int.h"
#include "db_shash.h"
#include "lock.h"
/*
* __lock_set_lk_conflicts
* Set the conflicts matrix.
*
* PUBLIC: int __lock_set_lk_conflicts __P((DB_ENV *, u_int8_t *, int));
*/
int
__lock_set_lk_conflicts(dbenv, lk_conflicts, lk_modes)
DB_ENV *dbenv;
u_int8_t *lk_conflicts;
int lk_modes;
{
int ret;
ENV_ILLEGAL_AFTER_OPEN(dbenv, "set_lk_conflicts");
if (dbenv->lk_conflicts != NULL) {
__os_free(dbenv->lk_conflicts,
dbenv->lk_modes * dbenv->lk_modes);
dbenv->lk_conflicts = NULL;
}
if ((ret = __os_malloc(dbenv,
lk_modes * lk_modes, NULL, &dbenv->lk_conflicts)) != 0)
return (ret);
memcpy(dbenv->lk_conflicts, lk_conflicts, lk_modes * lk_modes);
dbenv->lk_modes = lk_modes;
return (0);
}
/*
* __lock_set_lk_detect
* Set the automatic deadlock detection.
*
* PUBLIC: int __lock_set_lk_detect __P((DB_ENV *, u_int32_t));
*/
int
__lock_set_lk_detect(dbenv, lk_detect)
DB_ENV *dbenv;
u_int32_t lk_detect;
{
ENV_ILLEGAL_AFTER_OPEN(dbenv, "set_lk_detect");
switch (lk_detect) {
case DB_LOCK_DEFAULT:
case DB_LOCK_OLDEST:
case DB_LOCK_RANDOM:
case DB_LOCK_YOUNGEST:
break;
default:
return (EINVAL);
}
dbenv->lk_detect = lk_detect;
return (0);
}
/*
* __lock_set_lk_max
* Set the lock table size.
*
* PUBLIC: int __lock_set_lk_max __P((DB_ENV *, u_int32_t));
*/
int
__lock_set_lk_max(dbenv, lk_max)
DB_ENV *dbenv;
u_int32_t lk_max;
{
ENV_ILLEGAL_AFTER_OPEN(dbenv, "set_lk_max");
dbenv->lk_max = lk_max;
dbenv->lk_max_objects = lk_max;
dbenv->lk_max_lockers = lk_max;
return (0);
}
/*
* __lock_set_lk_max_locks
* Set the lock table size.
*
* PUBLIC: int __lock_set_lk_max_locks __P((DB_ENV *, u_int32_t));
*/
int
__lock_set_lk_max_locks(dbenv, lk_max)
DB_ENV *dbenv;
u_int32_t lk_max;
{
ENV_ILLEGAL_AFTER_OPEN(dbenv, "set_lk_max_locks");
dbenv->lk_max = lk_max;
return (0);
}
/*
* __lock_set_lk_max_lockers
* Set the lock table size.
*
* PUBLIC: int __lock_set_lk_max_lockers __P((DB_ENV *, u_int32_t));
*/
int
__lock_set_lk_max_lockers(dbenv, lk_max)
DB_ENV *dbenv;
u_int32_t lk_max;
{
ENV_ILLEGAL_AFTER_OPEN(dbenv, "set_lk_max_lockers");
dbenv->lk_max_lockers = lk_max;
return (0);
}
/*
* __lock_set_lk_max_objects
* Set the lock table size.
*
* PUBLIC: int __lock_set_lk_max_objects __P((DB_ENV *, u_int32_t));
*/
int
__lock_set_lk_max_objects(dbenv, lk_max)
DB_ENV *dbenv;
u_int32_t lk_max;
{
ENV_ILLEGAL_AFTER_OPEN(dbenv, "set_lk_max_objects");
dbenv->lk_max_objects = lk_max;
return (0);
}
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