public static extern int mdb_env_set_maxdbs(EnvironmentHandle env, uint dbs);
public static extern void mdb_dbi_close(EnvironmentHandle env, uint dbi);
public static extern int mdb_env_get_maxkeysize(EnvironmentHandle env);
public static extern int mdb_env_set_maxreaders(EnvironmentHandle env, uint readers);
public static extern int mdb_env_open(EnvironmentHandle env, IntPtr path, LMDBEnvironmentFlags flags, int mode);
public static extern int mdb_env_set_mapsize(EnvironmentHandle env, IntPtr size);
public static extern int mdb_env_create(out EnvironmentHandle env);
public static extern void mdb_env_close(EnvironmentHandle env);
public static extern int mdb_env_sync(EnvironmentHandle env, bool force);
public static extern int mdb_reader_check(EnvironmentHandle env, out int dead);
public static extern int mdb_env_stat(EnvironmentHandle env, out MDB_stat stat);
public static extern int mdb_env_info(EnvironmentHandle env, out MDB_envinfo stat);
public static extern int mdb_env_copy2(EnvironmentHandle env, IntPtr path, LMDBEnvironmentCopyFlags copyFlags);