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Created Feb 20, 2018

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/* sample-mdb.txt - MDB toy/sample
*
* Do a line-by-line comparison of this and sample-bdb.txt
*/
/*
* Copyright 2012-2017 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 "lmdb.h"
int main(int argc,char * argv[])
{
int rc;
MDB_env *env;
MDB_dbi dbi;
MDB_val key, data;
MDB_txn *txn;
MDB_cursor *cursor;
char sval[32];
/* Note: Most error checking omitted for simplicity */
rc = mdb_env_create(&env);
rc = mdb_env_open(env, "./testdb", 0, 0664);
rc = mdb_txn_begin(env, NULL, 0, &txn);
rc = mdb_dbi_open(txn, NULL, 0, &dbi);
key.mv_size = sizeof(int);
key.mv_data = sval;
data.mv_size = sizeof(sval);
data.mv_data = sval;
sprintf(sval, "%03x %d foo bar", 32, 3141592);
rc = mdb_put(txn, dbi, &key, &data, 0);
rc = mdb_txn_commit(txn);
if (rc) {
fprintf(stderr, "mdb_txn_commit: (%d) %s\n", rc, mdb_strerror(rc));
goto leave;
}
rc = mdb_txn_begin(env, NULL, MDB_RDONLY, &txn);
rc = mdb_cursor_open(txn, dbi, &cursor);
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
printf("key: %p %.*s, data: %p %.*s\n",
key.mv_data, (int) key.mv_size, (char *) key.mv_data,
data.mv_data, (int) data.mv_size, (char *) data.mv_data);
}
mdb_cursor_close(cursor);
mdb_txn_abort(txn);
leave:
mdb_dbi_close(env, dbi);
mdb_env_close(env);
return 0;
}
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