84 lines
2.8 KiB
Rust
84 lines
2.8 KiB
Rust
//! Simple UDP client that communicates with the given UDP port with UDP and provides
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//! an interface for sending data
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use {
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async_trait::async_trait, core::iter::repeat,
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solana_connection_cache::nonblocking::client_connection::ClientConnection,
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solana_sdk::transport::Result as TransportResult,
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solana_streamer::nonblocking::sendmmsg::batch_send, std::net::SocketAddr,
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tokio::net::UdpSocket,
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};
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pub struct UdpClientConnection {
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pub socket: UdpSocket,
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pub addr: SocketAddr,
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}
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impl UdpClientConnection {
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pub fn new_from_addr(socket: std::net::UdpSocket, server_addr: SocketAddr) -> Self {
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socket.set_nonblocking(true).unwrap();
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let socket = UdpSocket::from_std(socket).unwrap();
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Self {
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socket,
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addr: server_addr,
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}
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}
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}
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#[async_trait]
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impl ClientConnection for UdpClientConnection {
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fn server_addr(&self) -> &SocketAddr {
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&self.addr
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}
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async fn send_data(&self, buffer: &[u8]) -> TransportResult<()> {
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self.socket.send_to(buffer, self.addr).await?;
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Ok(())
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}
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async fn send_data_batch(&self, buffers: &[Vec<u8>]) -> TransportResult<()> {
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let pkts: Vec<_> = buffers.iter().zip(repeat(self.server_addr())).collect();
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batch_send(&self.socket, &pkts).await?;
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Ok(())
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}
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}
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#[cfg(test)]
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mod tests {
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use {
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super::*,
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solana_sdk::packet::{Packet, PACKET_DATA_SIZE},
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solana_streamer::nonblocking::recvmmsg::recv_mmsg,
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std::net::{IpAddr, Ipv4Addr},
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tokio::net::UdpSocket,
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};
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async fn check_send_one(connection: &UdpClientConnection, reader: &UdpSocket) {
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let packet = vec![111u8; PACKET_DATA_SIZE];
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connection.send_data(&packet).await.unwrap();
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let mut packets = vec![Packet::default(); 32];
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let recv = recv_mmsg(reader, &mut packets[..]).await.unwrap();
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assert_eq!(1, recv);
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}
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async fn check_send_batch(connection: &UdpClientConnection, reader: &UdpSocket) {
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let packets: Vec<_> = (0..32).map(|_| vec![0u8; PACKET_DATA_SIZE]).collect();
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connection.send_data_batch(&packets).await.unwrap();
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let mut packets = vec![Packet::default(); 32];
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let recv = recv_mmsg(reader, &mut packets[..]).await.unwrap();
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assert_eq!(32, recv);
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}
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#[tokio::test]
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async fn test_send_from_addr() {
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let addr_str = "0.0.0.0:50100";
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let addr = addr_str.parse().unwrap();
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let socket =
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solana_net_utils::bind_with_any_port(IpAddr::V4(Ipv4Addr::UNSPECIFIED)).unwrap();
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let connection = UdpClientConnection::new_from_addr(socket, addr);
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let reader = UdpSocket::bind(addr_str).await.expect("bind");
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check_send_one(&connection, &reader).await;
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check_send_batch(&connection, &reader).await;
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}
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}
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