Function mdbx_dbi_open_ex

pub unsafe extern "C" fn mdbx_dbi_open_ex(
    txn: *mut MDBX_txn,
    name: *const c_char,
    flags: MDBX_db_flags_t,
    dbi: *mut MDBX_dbi,
    keycmp: MDBX_cmp_func,
    datacmp: MDBX_cmp_func,
) -> c_int