Function ceph_rust::rados::rados_notify2

pub unsafe extern "C" fn rados_notify2(
    io: rados_ioctx_t, 
    o: *const c_char, 
    buf: *const c_char, 
    buf_len: c_int, 
    timeout_ms: uint64_t, 
    reply_buffer: *mut *mut c_char, 
    reply_buffer_len: *mut size_t
) -> c_int