diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/client.rs | 30 | ||||
-rw-r--r-- | src/common.rs | 104 | ||||
-rw-r--r-- | src/error.rs | 2 | ||||
-rw-r--r-- | src/lib.rs | 172 | ||||
-rw-r--r-- | src/recv.rs | 24 | ||||
-rw-r--r-- | src/send.rs | 4 | ||||
-rw-r--r-- | src/share.rs (renamed from src/new.rs) | 25 |
7 files changed, 177 insertions, 184 deletions
diff --git a/src/client.rs b/src/client.rs index 6785a1f..c4922ec 100644 --- a/src/client.rs +++ b/src/client.rs @@ -1,48 +1,44 @@ -use crate::prelude::*; +use super::*; use async_trait::async_trait; use std::{io, sync::Arc}; use tokio::net; -pub struct Sender { - sock: Arc<net::UdpSocket>, -} +#[derive(Debug)] +pub struct ToSrv(Arc<net::UdpSocket>); + +#[derive(Debug)] +pub struct FromSrv(Arc<net::UdpSocket>); #[async_trait] -impl UdpSender for Sender { +impl UdpSender for ToSrv { async fn send(&self, data: &[u8]) -> io::Result<()> { - self.sock.send(data).await?; + self.0.send(data).await?; Ok(()) } } -pub struct Receiver { - sock: Arc<net::UdpSocket>, -} - #[async_trait] -impl UdpReceiver for Receiver { +impl UdpReceiver for FromSrv { async fn recv(&self) -> io::Result<Vec<u8>> { let mut buffer = Vec::new(); buffer.resize(UDP_PKT_SIZE, 0); - let len = self.sock.recv(&mut buffer).await?; + let len = self.0.recv(&mut buffer).await?; buffer.truncate(len); Ok(buffer) } } -pub async fn connect(addr: &str) -> io::Result<(RudpSender<Sender>, RudpReceiver<Sender>)> { +pub async fn connect(addr: &str) -> io::Result<(RudpSender<ToSrv>, RudpReceiver<ToSrv>)> { let sock = Arc::new(net::UdpSocket::bind("0.0.0.0:0").await?); sock.connect(addr).await?; new( PeerID::Srv as u16, PeerID::Nil as u16, - Sender { - sock: Arc::clone(&sock), - }, - Receiver { sock }, + ToSrv(Arc::clone(&sock)), + FromSrv(sock), ) .await } diff --git a/src/common.rs b/src/common.rs new file mode 100644 index 0000000..797ccd1 --- /dev/null +++ b/src/common.rs @@ -0,0 +1,104 @@ +use super::*; +use async_trait::async_trait; +use delegate::delegate; +use num_enum::TryFromPrimitive; +use std::{io, sync::Arc}; +use tokio::sync::mpsc; + +pub const PROTO_ID: u32 = 0x4f457403; +pub const UDP_PKT_SIZE: usize = 512; +pub const NUM_CHANS: usize = 3; +pub const REL_BUFFER: usize = 0x8000; +pub const INIT_SEQNUM: u16 = 65500; +pub const TIMEOUT: u64 = 30; +pub const PING_TIMEOUT: u64 = 5; + +#[async_trait] +pub trait UdpSender: Send + Sync + 'static { + async fn send(&self, data: &[u8]) -> io::Result<()>; +} + +#[async_trait] +pub trait UdpReceiver: Send + Sync + 'static { + async fn recv(&self) -> io::Result<Vec<u8>>; +} + +#[derive(Debug, Copy, Clone, PartialEq)] +#[repr(u16)] +pub enum PeerID { + Nil = 0, + Srv, + CltMin, +} + +#[derive(Debug, Copy, Clone, PartialEq, TryFromPrimitive)] +#[repr(u8)] +pub enum PktType { + Ctl = 0, + Orig, + Split, + Rel, +} + +#[derive(Debug, Copy, Clone, PartialEq, TryFromPrimitive)] +#[repr(u8)] +pub enum CtlType { + Ack = 0, + SetPeerID, + Ping, + Disco, +} + +#[derive(Debug)] +pub struct Pkt<T> { + pub unrel: bool, + pub chan: u8, + pub data: T, +} + +pub type InPkt = Result<Pkt<Vec<u8>>, error::Error>; + +#[derive(Debug)] +pub struct RudpReceiver<S: UdpSender> { + pub(crate) share: Arc<RudpShare<S>>, + pub(crate) pkt_rx: mpsc::UnboundedReceiver<InPkt>, +} + +#[derive(Debug)] +pub struct RudpSender<S: UdpSender> { + pub(crate) share: Arc<RudpShare<S>>, +} + +macro_rules! impl_share { + ($T:ident) => { + impl<S: UdpSender> $T<S> { + pub async fn peer_id(&self) -> u16 { + self.share.id + } + + pub async fn is_server(&self) -> bool { + self.share.id == PeerID::Srv as u16 + } + + pub async fn close(self) { + self.share.close_tx.send(true).ok(); + + let mut tasks = self.share.tasks.lock().await; + while let Some(res) = tasks.join_next().await { + res.ok(); // TODO: handle error (?) + } + } + } + }; +} + +impl_share!(RudpReceiver); +impl_share!(RudpSender); + +impl<S: UdpSender> RudpReceiver<S> { + delegate! { + to self.pkt_rx { + pub async fn recv(&mut self) -> Option<InPkt>; + } + } +} diff --git a/src/error.rs b/src/error.rs index bac843a..7cfc057 100644 --- a/src/error.rs +++ b/src/error.rs @@ -1,4 +1,4 @@ -use crate::prelude::*; +use super::*; use num_enum::TryFromPrimitiveError; use thiserror::Error; use tokio::sync::mpsc::error::SendError; @@ -2,173 +2,21 @@ #![feature(hash_drain_filter)] #![feature(once_cell)] mod client; +mod common; mod error; -mod new; mod recv; mod send; +mod share; -pub use prelude::*; - -use async_trait::async_trait; -use delegate::delegate; -use num_enum::TryFromPrimitive; -use std::{cell::OnceCell, collections::HashMap, io, sync::Arc, time::Instant}; -use tokio::{ - sync::{mpsc, watch, Mutex, RwLock}, - task::JoinSet, -}; - -#[async_trait] -pub trait UdpSender: Send + Sync + 'static { - async fn send(&self, data: &[u8]) -> io::Result<()>; -} - -#[async_trait] -pub trait UdpReceiver: Send + Sync + 'static { - async fn recv(&self) -> io::Result<Vec<u8>>; -} - -#[derive(Debug, Copy, Clone, PartialEq)] -#[repr(u16)] -pub enum PeerID { - Nil = 0, - Srv, - CltMin, -} - -#[derive(Debug, Copy, Clone, PartialEq, TryFromPrimitive)] -#[repr(u8)] -pub enum PktType { - Ctl = 0, - Orig, - Split, - Rel, -} - -#[derive(Debug, Copy, Clone, PartialEq, TryFromPrimitive)] -#[repr(u8)] -pub enum CtlType { - Ack = 0, - SetPeerID, - Ping, - Disco, -} - -#[derive(Debug)] -pub struct Pkt<T> { - pub unrel: bool, - pub chan: u8, - pub data: T, -} - -pub type InPkt = Result<Pkt<Vec<u8>>, error::Error>; - -#[derive(Debug)] -struct Ack { - tx: watch::Sender<bool>, - rx: watch::Receiver<bool>, - data: Vec<u8>, -} - -#[derive(Debug)] -struct Chan { - acks: HashMap<u16, Ack>, - seqnum: u16, -} - -#[derive(Debug)] -struct RudpShare<S: UdpSender> { - id: u16, - remote_id: RwLock<u16>, - chans: Vec<Mutex<Chan>>, - udp_tx: S, - close_tx: watch::Sender<bool>, - tasks: Mutex<JoinSet<()>>, -} - -#[derive(Debug)] -pub struct RudpReceiver<S: UdpSender> { - share: Arc<RudpShare<S>>, - pkt_rx: mpsc::UnboundedReceiver<InPkt>, -} - -#[derive(Debug)] -pub struct RudpSender<S: UdpSender> { - share: Arc<RudpShare<S>>, -} - -macro_rules! impl_share { - ($T:ident) => { - impl<S: UdpSender> $T<S> { - pub async fn peer_id(&self) -> u16 { - self.share.id - } - - pub async fn is_server(&self) -> bool { - self.share.id == PeerID::Srv as u16 - } - - pub async fn close(self) { - self.share.close_tx.send(true).ok(); - - let mut tasks = self.share.tasks.lock().await; - while let Some(res) = tasks.join_next().await { - res.ok(); // TODO: handle error (?) - } - } - } - }; -} - -impl_share!(RudpReceiver); -impl_share!(RudpSender); - -impl<S: UdpSender> RudpReceiver<S> { - delegate! { - to self.pkt_rx { - pub async fn recv(&mut self) -> Option<InPkt>; - } - } -} - -#[derive(Debug)] -struct Split { - timestamp: Option<Instant>, - chunks: Vec<OnceCell<Vec<u8>>>, - got: usize, -} - -struct RecvChan { - packets: Vec<Option<Vec<u8>>>, // char ** 😛 - splits: HashMap<u16, Split>, - seqnum: u16, - num: u8, -} - -struct RecvWorker<R: UdpReceiver, S: UdpSender> { - share: Arc<RudpShare<S>>, - close: watch::Receiver<bool>, - chans: Arc<Vec<Mutex<RecvChan>>>, - pkt_tx: mpsc::UnboundedSender<InPkt>, - udp_rx: R, -} - -mod prelude { - pub const PROTO_ID: u32 = 0x4f457403; - pub const UDP_PKT_SIZE: usize = 512; - pub const NUM_CHANS: usize = 3; - pub const REL_BUFFER: usize = 0x8000; - pub const INIT_SEQNUM: u16 = 65500; - pub const TIMEOUT: u64 = 30; - pub const PING_TIMEOUT: u64 = 5; - - pub use super::{ - client::{connect, Sender as Client}, - error::Error, - new::new, - CtlType, InPkt, PeerID, Pkt, PktType, RudpReceiver, RudpSender, UdpReceiver, UdpSender, - }; +pub use client::*; +pub use common::*; +pub use error::*; +use recv::*; +pub use send::*; +pub use share::*; +pub use ticker_mod::*; +mod ticker_mod { #[macro_export] macro_rules! ticker { ($duration:expr, $close:expr, $body:block) => { diff --git a/src/recv.rs b/src/recv.rs index a88426f..572b17e 100644 --- a/src/recv.rs +++ b/src/recv.rs @@ -1,4 +1,4 @@ -use crate::{prelude::*, ticker, RecvChan, RecvWorker, RudpShare, Split}; +use super::*; use async_recursion::async_recursion; use byteorder::{BigEndian, ReadBytesExt, WriteBytesExt}; use std::{ @@ -17,6 +17,28 @@ fn to_seqnum(seqnum: u16) -> usize { type Result<T> = std::result::Result<T, Error>; +#[derive(Debug)] +struct Split { + timestamp: Option<Instant>, + chunks: Vec<OnceCell<Vec<u8>>>, + got: usize, +} + +struct RecvChan { + packets: Vec<Option<Vec<u8>>>, // char ** 😛 + splits: HashMap<u16, Split>, + seqnum: u16, + num: u8, +} + +pub(crate) struct RecvWorker<R: UdpReceiver, S: UdpSender> { + share: Arc<RudpShare<S>>, + close: watch::Receiver<bool>, + chans: Arc<Vec<Mutex<RecvChan>>>, + pkt_tx: mpsc::UnboundedSender<InPkt>, + udp_rx: R, +} + impl<R: UdpReceiver, S: UdpSender> RecvWorker<R, S> { pub fn new( udp_rx: R, diff --git a/src/send.rs b/src/send.rs index 0bbce47..e0c2fa3 100644 --- a/src/send.rs +++ b/src/send.rs @@ -1,9 +1,9 @@ -use crate::{prelude::*, Ack, RudpShare}; +use super::*; use byteorder::{BigEndian, WriteBytesExt}; use std::io::{self, Write}; use tokio::sync::watch; -type AckResult = io::Result<Option<watch::Receiver<bool>>>; +pub type AckResult = io::Result<Option<watch::Receiver<bool>>>; impl<S: UdpSender> RudpSender<S> { pub async fn send(&self, pkt: Pkt<&[u8]>) -> AckResult { diff --git a/src/new.rs b/src/share.rs index b17f518..e0d2d2b 100644 --- a/src/new.rs +++ b/src/share.rs @@ -1,10 +1,33 @@ -use crate::{prelude::*, ticker, Chan, RecvWorker, RudpShare}; +use super::*; use std::{collections::HashMap, io, sync::Arc, time::Duration}; use tokio::{ sync::{mpsc, watch, Mutex, RwLock}, task::JoinSet, }; +#[derive(Debug)] +pub(crate) struct Ack { + pub(crate) tx: watch::Sender<bool>, + pub(crate) rx: watch::Receiver<bool>, + pub(crate) data: Vec<u8>, +} + +#[derive(Debug)] +pub(crate) struct Chan { + pub(crate) acks: HashMap<u16, Ack>, + pub(crate) seqnum: u16, +} + +#[derive(Debug)] +pub(crate) struct RudpShare<S: UdpSender> { + pub(crate) id: u16, + pub(crate) remote_id: RwLock<u16>, + pub(crate) chans: Vec<Mutex<Chan>>, + pub(crate) udp_tx: S, + pub(crate) close_tx: watch::Sender<bool>, + pub(crate) tasks: Mutex<JoinSet<()>>, +} + pub async fn new<S: UdpSender, R: UdpReceiver>( id: u16, remote_id: u16, |