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67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
/* mdb_stat.c - memory-mapped database status tool */
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/*
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* Copyright 2011 Howard Chu, Symas Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include "mdb.h"
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int main(int argc,char * argv[])
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{
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int rc;
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MDB_env *env;
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MDB_txn *txn;
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MDB_dbi dbi;
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MDB_stat mst;
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char *envname = argv[1];
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char *subname = NULL;
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rc = mdb_env_create(&env);
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if (argc > 2) {
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mdb_env_set_maxdbs(env, 4);
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subname = argv[2];
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}
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rc = mdb_env_open(env, envname, MDB_RDONLY, 0);
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if (rc) {
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printf("mdb_env_open failed, error %d\n", rc);
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goto env_close;
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}
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rc = mdb_txn_begin(env, NULL, 1, &txn);
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if (rc) {
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printf("mdb_txn_begin failed, error %d\n", rc);
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goto env_close;
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}
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rc = mdb_open(txn, subname, 0, &dbi);
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if (rc) {
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printf("mdb_open failed, error %d\n", rc);
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goto txn_abort;
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}
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rc = mdb_stat(txn, dbi, &mst);
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printf("Page size: %u\n", mst.ms_psize);
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printf("Tree depth: %u\n", mst.ms_depth);
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printf("Branch pages: %zu\n", mst.ms_branch_pages);
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printf("Leaf pages: %zu\n", mst.ms_leaf_pages);
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printf("Overflow pages: %zu\n", mst.ms_overflow_pages);
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printf("Entries: %zu\n", mst.ms_entries);
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mdb_close(env, dbi);
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txn_abort:
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mdb_txn_abort(txn);
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env_close:
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mdb_env_close(env);
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return rc ? EXIT_FAILURE : EXIT_SUCCESS;
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}
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