openldap/servers/slapd/back-bdb/config.c
Howard Chu 6fd41cd254 Add shm_key config keyword to use shared memory for BDB environment
Unmeasurable performance difference on my tests, but who knows...
2003-04-18 09:43:22 +00:00

187 lines
5.3 KiB
C

/* config.c - bdb backend configuration file routine */
/* $OpenLDAP$ */
/*
* Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include "back-bdb.h"
#ifdef DB_DIRTY_READ
# define SLAP_BDB_ALLOW_DIRTY_READ
#endif
int
bdb_db_config(
BackendDB *be,
const char *fname,
int lineno,
int argc,
char **argv )
{
struct bdb_info *bdb = (struct bdb_info *) be->be_private;
if ( bdb == NULL ) {
fprintf( stderr, "%s: line %d: "
"bdb database info is null!\n",
fname, lineno );
return 1;
}
/* directory is the DB_HOME */
if ( strcasecmp( argv[0], "directory" ) == 0 ) {
if ( argc < 2 ) {
fprintf( stderr, "%s: line %d: "
"missing dir in \"directory <dir>\" line\n",
fname, lineno );
return 1;
}
if ( bdb->bi_dbenv_home ) {
free( bdb->bi_dbenv_home );
}
bdb->bi_dbenv_home = ch_strdup( argv[1] );
#ifdef SLAP_BDB_ALLOW_DIRTY_READ
} else if ( strcasecmp( argv[0], "dirtyread" ) == 0 ) {
bdb->bi_db_opflags |= DB_DIRTY_READ;
#endif
/* transaction logging configuration */
} else if ( strcasecmp( argv[0], "dbnosync" ) == 0 ) {
bdb->bi_dbenv_xflags |= DB_TXN_NOSYNC;
/* transaction checkpoint configuration */
} else if ( strcasecmp( argv[0], "checkpoint" ) == 0 ) {
if ( argc < 3 ) {
fprintf( stderr, "%s: line %d: "
"missing parameters in \"checkpoint <kbyte> <min>\" line\n",
fname, lineno );
return 1;
}
bdb->bi_txn_cp = 1;
bdb->bi_txn_cp_kbyte = strtol( argv[1], NULL, 0 );
bdb->bi_txn_cp_min = strtol( argv[2], NULL, 0 );
/* lock detect configuration */
} else if ( strcasecmp( argv[0], "lockdetect" ) == 0 ) {
if ( argc < 2 ) {
fprintf( stderr, "%s: line %d: "
"missing parameters in \"lockDetect <policy>\" line\n",
fname, lineno );
return 1;
}
if( strcasecmp( argv[1], "default" ) == 0 ) {
bdb->bi_lock_detect = DB_LOCK_DEFAULT;
} else if( strcasecmp( argv[1], "oldest" ) == 0 ) {
bdb->bi_lock_detect = DB_LOCK_OLDEST;
} else if( strcasecmp( argv[1], "random" ) == 0 ) {
bdb->bi_lock_detect = DB_LOCK_RANDOM;
} else if( strcasecmp( argv[1], "youngest" ) == 0 ) {
bdb->bi_lock_detect = DB_LOCK_YOUNGEST;
} else if( strcasecmp( argv[1], "fewest" ) == 0 ) {
bdb->bi_lock_detect = DB_LOCK_MINLOCKS;
} else {
fprintf( stderr, "%s: line %d: "
"bad policy (%s) in \"lockDetect <policy>\" line\n",
fname, lineno, argv[1] );
return 1;
}
/* mode with which to create new database files */
} else if ( strcasecmp( argv[0], "mode" ) == 0 ) {
if ( argc < 2 ) {
fprintf( stderr, "%s: line %d: "
"missing mode in \"mode <mode>\" line\n",
fname, lineno );
return 1;
}
bdb->bi_dbenv_mode = strtol( argv[1], NULL, 0 );
/* attribute to index */
} else if ( strcasecmp( argv[0], "index" ) == 0 ) {
int rc;
if ( argc < 2 ) {
fprintf( stderr, "%s: line %d: "
"missing attr in \"index <attr> [pres,eq,approx,sub]\" line\n",
fname, lineno );
return 1;
} else if ( argc > 3 ) {
fprintf( stderr, "%s: line %d: "
"extra junk after \"index <attr> [pres,eq,approx,sub]\" "
"line (ignored)\n",
fname, lineno );
}
rc = bdb_attr_index_config( bdb, fname, lineno, argc - 1, &argv[1] );
if( rc != LDAP_SUCCESS ) return 1;
/* unique key for shared memory regions */
} else if ( strcasecmp( argv[0], "shm_key" ) == 0 ) {
if ( argc < 2 ) {
fprintf( stderr,
"%s: line %d: missing key in \"shm_key <key>\" line\n",
fname, lineno );
return( 1 );
}
bdb->bi_shm_key = atoi( argv[1] );
/* size of the cache in entries */
} else if ( strcasecmp( argv[0], "cachesize" ) == 0 ) {
if ( argc < 2 ) {
fprintf( stderr,
"%s: line %d: missing size in \"cachesize <size>\" line\n",
fname, lineno );
return( 1 );
}
bdb->bi_cache.c_maxsize = atoi( argv[1] );
/* depth of search stack cache in units of (IDL)s */
} else if ( strcasecmp( argv[0], "searchstack" ) == 0 ) {
if ( argc < 2 ) {
fprintf( stderr,
"%s: line %d: missing depth in \"searchstack <depth>\" line\n",
fname, lineno );
return( 1 );
}
bdb->bi_search_stack_depth = atoi( argv[1] );
if ( bdb->bi_search_stack_depth < MINIMUM_SEARCH_STACK_DEPTH ) {
fprintf( stderr,
"%s: line %d: depth %d too small, using %d\n",
fname, lineno, bdb->bi_search_stack_depth,
MINIMUM_SEARCH_STACK_DEPTH );
bdb->bi_search_stack_depth = MINIMUM_SEARCH_STACK_DEPTH;
}
#ifdef SLAP_IDL_CACHE
/* size of the IDL cache in entries */
} else if ( strcasecmp( argv[0], "idlcachesize" ) == 0 ) {
if ( argc < 2 ) {
fprintf( stderr,
"%s: line %d: missing size in \"idlcachesize <size>\" line\n",
fname, lineno );
return( 1 );
}
if ( !( slapMode & SLAP_TOOL_MODE ) )
bdb->bi_idl_cache_max_size = atoi( argv[1] );
#endif
/* anything else */
} else {
fprintf( stderr, "%s: line %d: "
"unknown directive \"%s\" in bdb database definition (ignored)\n",
fname, lineno, argv[0] );
}
return 0;
}