NextGraph
/
lmdb
mirror of https://github.com/nextgraph-org/lmdb.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge mdb_stata into mdb_stat

Browse Source
vmware
Howard Chu 12 years ago
parent 65d40eb5d2
commit 7f0771a3ed
2 changed files with 90 additions and 100 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 106
      libraries/libmdb/mdb_stat.c
  2. 84
      libraries/libmdb/mdb_stata.c

106
libraries/libmdb/mdb_stat.c
Unescape View File

@ -13,49 +13,123 @@
*/
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <string.h>
#include <unistd.h>
#include "mdb.h"
int main(int argc,char * argv[])
static void prstat(MDB_stat *ms)
{
int rc;
printf("Page size: %u\n", ms->ms_psize);
printf("Tree depth: %u\n", ms->ms_depth);
printf("Branch pages: %zu\n", ms->ms_branch_pages);
printf("Leaf pages: %zu\n", ms->ms_leaf_pages);
printf("Overflow pages: %zu\n", ms->ms_overflow_pages);
printf("Entries: %zu\n", ms->ms_entries);
}
static void usage(char *prog)
{
fprintf(stderr, "usage: %s dbpath [-a|-s subdb]\n", prog);
exit(EXIT_FAILURE);
}
int main(int argc, char *argv[])
{
int i, rc;
MDB_env *env;
MDB_txn *txn;
MDB_dbi dbi;
MDB_stat mst;
char *envname = argv[1];
char *prog = argv[0];
char *envname;
char *subname = NULL;
int alldbs = 0;
if (argc < 2) {
usage(prog);
}
/* -a: print stat of main DB and all subDBs
* -s: print stat of only the named subDB
* (default) print stat of only the main DB
*/
while ((i = getopt(argc, argv, "as:")) != EOF) {
switch(i) {
case 'a':
alldbs++;
break;
case 's':
subname = optarg;
break;
default:
fprintf(stderr, "%s: unrecognized option -%c\n", prog, optopt);
usage(prog);
}
}
if (optind != argc - 1)
usage(prog);
envname = argv[optind];
rc = mdb_env_create(&env);
if (argc > 2) {
if (alldbs || subname) {
mdb_env_set_maxdbs(env, 4);
subname = argv[2];
}
rc = mdb_env_open(env, envname, MDB_RDONLY, 0);
rc = mdb_env_open(env, envname, MDB_RDONLY, 0664);
if (rc) {
printf("mdb_env_open failed, error %d\n", rc);
printf("mdb_env_open failed, error %d %s\n", rc, mdb_strerror(rc));
goto env_close;
}
rc = mdb_txn_begin(env, NULL, MDB_RDONLY, &txn);
if (rc) {
printf("mdb_txn_begin failed, error %d\n", rc);
printf("mdb_txn_begin failed, error %d %s\n", rc, mdb_strerror(rc));
goto env_close;
}
rc = mdb_open(txn, subname, 0, &dbi);
if (rc) {
printf("mdb_open failed, error %d\n", rc);
printf("mdb_open failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
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);
if (rc) {
printf("mdb_stat failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
prstat(&mst);
if (alldbs) {
MDB_cursor *cursor;
MDB_val key;
rc = mdb_cursor_open(txn, dbi, &cursor);
if (rc) {
printf("mdb_cursor_open failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
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';
rc = mdb_open(txn, str, 0, &db2);
if (rc == MDB_SUCCESS)
printf("\n%s\n", str);
free(str);
if (rc) continue;
rc = mdb_stat(txn, db2, &mst);
if (rc) {
printf("mdb_stat failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
prstat(&mst);
mdb_close(env, db2);
}
mdb_cursor_close(cursor);
}
mdb_close(env, dbi);
txn_abort:
mdb_txn_abort(txn);

84
libraries/libmdb/mdb_stata.c
Unescape View File

@ -1,84 +0,0 @@
/* 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);
goto env_close;
}
rc = mdb_txn_begin(env, NULL, MDB_RDONLY, &txn);
if (rc) {
printf("mdb_txn_begin failed, error %d\n", rc);
goto env_close;
}
rc = mdb_open(txn, NULL, 0, &dbi);
if (rc) {
printf("mdb_open failed, error %d\n", rc);
goto txn_abort;
}
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);
txn_abort:
mdb_txn_abort(txn);
env_close:
mdb_env_close(env);
return rc ? EXIT_FAILURE : EXIT_SUCCESS;
}
Write Preview
Loading…
Cancel
Save