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