pub unsafe extern "C" fn rrd_fetch(
arg1: c_int,
arg2: *mut *mut c_char,
arg3: *mut time_t,
arg4: *mut time_t,
arg5: *mut c_ulong,
arg6: *mut c_ulong,
arg7: *mut *mut *mut c_char,
arg8: *mut *mut rrd_value_t,
) -> c_int