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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 1999
* Sleepycat Software. All rights reserved.
*/
#include "db_config.h"
#ifndef lint
static const char sccsid[] = "@(#)log_method.c 11.3 (Sleepycat) 8/11/99";
#endif /* not lint */
#ifndef NO_SYSTEM_INCLUDES
#include <sys/types.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#ifndef _MSC_VER /* _WIN32 */
#include <unistd.h>
#endif
#endif /* !NO_SYSTEM_INCLUDES */
#include "db_int.h"
#include "log.h"
static int CDB___log_set_lg_max __P((DB_ENV *, u_int32_t));
static int CDB___log_set_lg_bsize __P((DB_ENV *, u_int32_t));
/*
* CDB___log_dbenv_create --
* Log specific initialization of the DB_ENV structure.
*
* PUBLIC: void CDB___log_dbenv_create __P((DB_ENV *));
*/
void
CDB___log_dbenv_create(dbenv)
DB_ENV *dbenv;
{
dbenv->lg_bsize = LG_BSIZE_DEFAULT;
dbenv->set_lg_bsize = CDB___log_set_lg_bsize;
dbenv->lg_max = LG_MAX_DEFAULT;
dbenv->set_lg_max = CDB___log_set_lg_max;
}
/*
* CDB___log_set_lg_bsize --
* Set the log buffer size.
*/
static int
CDB___log_set_lg_bsize(dbenv, lg_bsize)
DB_ENV *dbenv;
u_int32_t lg_bsize;
{
ENV_ILLEGAL_AFTER_OPEN(dbenv, "set_lg_bsize");
/* Let's not be silly. */
if (lg_bsize > dbenv->lg_max / 4) {
CDB___db_err(dbenv, "log buffer size must be <= log file size / 4");
return (EINVAL);
}
dbenv->lg_bsize = lg_bsize;
return (0);
}
/*
* CDB___log_set_lg_max --
* Set the maximum log file size.
*/
static int
CDB___log_set_lg_max(dbenv, lg_max)
DB_ENV *dbenv;
u_int32_t lg_max;
{
ENV_ILLEGAL_AFTER_OPEN(dbenv, "set_lg_max");
/* Let's not be silly. */
if (lg_max < dbenv->lg_bsize * 4) {
CDB___db_err(dbenv, "log file size must be >= log buffer size * 4");
return (EINVAL);
}
dbenv->lg_max = lg_max;
return (0);
}
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