如何访问通过 UDP 发送的数据?
How do I access the data sent over UDP?
Looking at the documentation,我只能想办法return通过UDP发送的内容的大小:
Receives data from the socket. On success, returns the number of bytes read and the address from whence the data came.
目前有输出内容的方法吗?
fn recv_from(&self, buf: &mut [u8]) -> Result<(usize, SocketAddr)>
数据被读入buf
的开头。因此,读取的数据可以作为 &[u8]
访问,如下所示:
match socket.recv_from(buf) {
Ok((bytes_read, _)) => Some(&buf[0..bytes_read]),
Err(_) => None,
}
Looking at the documentation,我只能想办法return通过UDP发送的内容的大小:
Receives data from the socket. On success, returns the number of bytes read and the address from whence the data came.
目前有输出内容的方法吗?
fn recv_from(&self, buf: &mut [u8]) -> Result<(usize, SocketAddr)>
数据被读入buf
的开头。因此,读取的数据可以作为 &[u8]
访问,如下所示:
match socket.recv_from(buf) {
Ok((bytes_read, _)) => Some(&buf[0..bytes_read]),
Err(_) => None,
}