/* mtest.c - memory-mapped database tester/toy */
/*
- * Copyright 2011-2014 Howard Chu, Symas Corp.
+ * Copyright 2011-2018 Howard Chu, Symas Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
}
E(mdb_env_create(&env));
+ E(mdb_env_set_maxreaders(env, 1));
E(mdb_env_set_mapsize(env, 10485760));
E(mdb_env_open(env, "./testdb", MDB_FIXEDMAP /*|MDB_NOSYNC*/, 0664));
+
E(mdb_txn_begin(env, NULL, 0, &txn));
- E(mdb_open(txn, NULL, 0, &dbi));
+ E(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;
printf("Adding %d values\n", count);
for (i=0;i<count;i++) {
sprintf(sval, "%03x %d foo bar", values[i], values[i]);
+ /* Set <data> in each iteration, since MDB_NOOVERWRITE may modify it */
+ data.mv_size = sizeof(sval);
+ data.mv_data = sval;
if (RES(MDB_KEYEXIST, mdb_put(txn, dbi, &key, &data, MDB_NOOVERWRITE))) {
j++;
data.mv_size = sizeof(sval);
E(mdb_txn_commit(txn));
E(mdb_env_stat(env, &mst));
- E(mdb_txn_begin(env, NULL, 1, &txn));
+ E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(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",
printf("Deleted %d values\n", j);
E(mdb_env_stat(env, &mst));
- E(mdb_txn_begin(env, NULL, 1, &txn));
+ E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
E(mdb_cursor_open(txn, dbi, &cursor));
printf("Cursor next\n");
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
(int) key.mv_size, (char *) key.mv_data,
(int) data.mv_size, (char *) data.mv_data);
+ mdb_cursor_close(cursor);
mdb_txn_abort(txn);
printf("Deleting with cursor\n");
data.mv_data, (int) data.mv_size, (char *) data.mv_data);
}
mdb_cursor_close(cursor);
- mdb_close(env, dbi);
-
mdb_txn_abort(txn);
+
+ mdb_dbi_close(env, dbi);
mdb_env_close(env);
return 0;