forked from M-Labs/humpback-dds
nal-client: init
This commit is contained in:
parent
1e7fd93835
commit
13bf8b6080
|
@ -1,4 +1,5 @@
|
|||
#![no_std]
|
||||
#![feature(generic_associated_types)]
|
||||
extern crate embedded_hal;
|
||||
use embedded_hal::{
|
||||
digital::v2::OutputPin,
|
||||
|
@ -37,6 +38,8 @@ use crate::dds::DDS;
|
|||
|
||||
pub mod scpi;
|
||||
|
||||
pub mod nal_tcp_client;
|
||||
|
||||
/*
|
||||
* Enum for structuring error
|
||||
*/
|
||||
|
|
|
@ -0,0 +1,109 @@
|
|||
use embedded_nal::{TcpStack, Mode, SocketAddr};
|
||||
use embedded_nal::SocketAddr::{V4, V6};
|
||||
|
||||
use smoltcp::wire::{EthernetAddress, IpAddress, IpCidr};
|
||||
use smoltcp::iface::{NeighborCache, EthernetInterfaceBuilder};
|
||||
use smoltcp::socket::SocketSet;
|
||||
use smoltcp::socket::{SocketHandle, TcpSocket, TcpSocketBuffer};
|
||||
use smoltcp::time::{Duration, Instant};
|
||||
use smoltcp::Error;
|
||||
|
||||
use nb::Error as nbError;
|
||||
use core::cell;
|
||||
|
||||
const BUFFER_SIZE: usize = 2048;
|
||||
pub static mut TX_STORAGE: &'static mut [u8] = &mut [0; BUFFER_SIZE];
|
||||
pub static mut RX_STORAGE: &'static mut [u8] = &mut [0; BUFFER_SIZE];
|
||||
|
||||
/*
|
||||
* Struct for a TCP socket
|
||||
* TODO: Consider handling all sockets in this struct
|
||||
*/
|
||||
pub struct NalTcpClient {}
|
||||
|
||||
// impl NalTcpClient {
|
||||
// pub fn new(socket: &'a mut TcpSocket<'a>) -> Self {
|
||||
|
||||
// NalTcpClient {
|
||||
// socket,
|
||||
// }
|
||||
// }
|
||||
// }
|
||||
|
||||
impl<'a> TcpStack for &'a NalTcpClient{
|
||||
// The type returned when we create a new TCP socket
|
||||
type TcpSocket = smoltcp::socket::TcpSocket<'a>;
|
||||
// The type returned when we have an error
|
||||
type Error = Error;
|
||||
|
||||
// Open a new TCP socket. The socket starts in the unconnected state.
|
||||
fn open(&self, mode: Mode) -> Result<Self::TcpSocket, Self::Error> {
|
||||
let tx_buffer = unsafe { TcpSocketBuffer::new(&mut TX_STORAGE[..]) };
|
||||
let rx_buffer = unsafe { TcpSocketBuffer::new(&mut RX_STORAGE[..]) };
|
||||
let mut socket = TcpSocket::new(rx_buffer, tx_buffer);
|
||||
if let Mode::Timeout(dur) = mode {
|
||||
socket.set_timeout(Some(Duration::from_millis(dur.into())));
|
||||
}
|
||||
Ok(socket)
|
||||
}
|
||||
|
||||
// Connect to the given remote host and port.
|
||||
fn connect(
|
||||
&self,
|
||||
mut socket: Self::TcpSocket,
|
||||
remote: SocketAddr,
|
||||
) -> Result<Self::TcpSocket, Self::Error> {
|
||||
let result = match remote {
|
||||
V4(v4_addr) => {
|
||||
let ip_addr = v4_addr.ip().octets();
|
||||
socket.connect((IpAddress::v4(ip_addr[0], ip_addr[1], ip_addr[2], ip_addr[3]), v4_addr.port()), 49500)
|
||||
},
|
||||
V6(v6_addr) => {
|
||||
let ip_addr = v6_addr.ip().segments();
|
||||
socket.connect((IpAddress::v6(ip_addr[0], ip_addr[1], ip_addr[2], ip_addr[3],
|
||||
ip_addr[0], ip_addr[1], ip_addr[2], ip_addr[3]), v6_addr.port()), 49500)
|
||||
}
|
||||
};
|
||||
match result {
|
||||
Ok(_) => Ok(socket),
|
||||
Err(_e) => Err(_e),
|
||||
}
|
||||
}
|
||||
|
||||
/// Check if this socket is connected
|
||||
fn is_connected(&self, socket: &Self::TcpSocket) -> Result<bool, Self::Error> {
|
||||
Ok(socket.is_active())
|
||||
}
|
||||
|
||||
/// Write to the stream. Returns the number of bytes written is returned
|
||||
/// (which may be less than `buffer.len()`), or an error.
|
||||
fn write(&self, socket: &mut Self::TcpSocket, buffer: &[u8]) -> nb::Result<usize, Self::Error> {
|
||||
if socket.can_send() {
|
||||
socket.send_slice(buffer).map_err(nbError::Other)
|
||||
} else {
|
||||
Err(nbError::Other(Error::Illegal))
|
||||
}
|
||||
}
|
||||
|
||||
/// Read from the stream. Returns `Ok(n)`, which means `n` bytes of
|
||||
/// data have been received and they have been placed in
|
||||
/// `&buffer[0..n]`, or an error.
|
||||
fn read(
|
||||
&self,
|
||||
socket: &mut Self::TcpSocket,
|
||||
buffer: &mut [u8],
|
||||
) -> nb::Result<usize, Self::Error> {
|
||||
if socket.can_recv() {
|
||||
socket.recv_slice(buffer).map_err(nbError::Other)
|
||||
} else {
|
||||
Err(nbError::Other(Error::Illegal))
|
||||
}
|
||||
}
|
||||
|
||||
/// Close an existing TCP socket.
|
||||
fn close(&self, mut socket: Self::TcpSocket) -> Result<(), Self::Error> {
|
||||
socket.close();
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
Loading…
Reference in New Issue