You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
83 lines
2.1 KiB
83 lines
2.1 KiB
/* mdb_stat.c - memory-mapped database status tool */
|
|
/*
|
|
* Copyright 2011 Howard Chu, Symas Corp.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted only as authorized by the OpenLDAP
|
|
* Public License.
|
|
*
|
|
* A copy of this license is available in the file LICENSE in the
|
|
* top-level directory of the distribution or, alternatively, at
|
|
* <http://www.OpenLDAP.org/license.html>.
|
|
*/
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include "mdb.h"
|
|
|
|
int main(int argc,char * argv[])
|
|
{
|
|
int rc;
|
|
MDB_env *env;
|
|
MDB_txn *txn;
|
|
MDB_dbi dbi;
|
|
MDB_stat mst;
|
|
MDB_cursor *cursor;
|
|
MDB_val key;
|
|
char *envname = argv[1];
|
|
|
|
rc = mdb_env_create(&env);
|
|
|
|
mdb_env_set_maxdbs(env, 4);
|
|
|
|
rc = mdb_env_open(env, envname, MDB_RDONLY, 0);
|
|
if (rc) {
|
|
printf("mdb_env_open failed, error %d\n", rc);
|
|
exit(1);
|
|
}
|
|
rc = mdb_txn_begin(env, NULL, 1, &txn);
|
|
if (rc) {
|
|
printf("mdb_txn_begin failed, error %d\n", rc);
|
|
exit(1);
|
|
}
|
|
rc = mdb_open(txn, NULL, 0, &dbi);
|
|
if (rc) {
|
|
printf("mdb_open failed, error %d\n", rc);
|
|
mdb_txn_abort(txn);
|
|
exit(1);
|
|
}
|
|
|
|
rc = mdb_stat(txn, dbi, &mst);
|
|
printf("Page size: %u\n", mst.ms_psize);
|
|
printf("Tree depth: %u\n", mst.ms_depth);
|
|
printf("Branch pages: %zu\n", mst.ms_branch_pages);
|
|
printf("Leaf pages: %zu\n", mst.ms_leaf_pages);
|
|
printf("Overflow pages: %zu\n", mst.ms_overflow_pages);
|
|
printf("Entries: %zu\n", mst.ms_entries);
|
|
|
|
rc = mdb_cursor_open(txn, dbi, &cursor);
|
|
while ((rc = mdb_cursor_get(cursor, &key, NULL, MDB_NEXT)) == 0) {
|
|
char *str = malloc(key.mv_size+1);
|
|
MDB_dbi db2;
|
|
memcpy(str, key.mv_data, key.mv_size);
|
|
str[key.mv_size] = '\0';
|
|
printf("\n%s\n", str);
|
|
rc = mdb_open(txn, str, 0, &db2);
|
|
if (rc) break;
|
|
free(str);
|
|
rc = mdb_stat(txn, db2, &mst);
|
|
printf("Tree depth: %u\n", mst.ms_depth);
|
|
printf("Branch pages: %zu\n", mst.ms_branch_pages);
|
|
printf("Leaf pages: %zu\n", mst.ms_leaf_pages);
|
|
printf("Overflow pages: %zu\n", mst.ms_overflow_pages);
|
|
printf("Entries: %zu\n", mst.ms_entries);
|
|
mdb_close(env, db2);
|
|
}
|
|
mdb_cursor_close(cursor);
|
|
mdb_close(env, dbi);
|
|
mdb_txn_abort(txn);
|
|
mdb_env_close(env);
|
|
|
|
return 0;
|
|
}
|
|
|