Merge pull request #49 from gavofyork/network
Refactoring: General IO is now split from Networking IO
This commit is contained in:
Gav Wood
commit
af65d539d1
@ -22,6 +22,7 @@ rust-crypto = "0.2.34"
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elastic-array = "0.4"
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heapsize = "0.2"
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itertools = "0.4"
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slab = { git = "https://github.com/arkpar/slab.git" }
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[dev-dependencies]
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json-tests = { path = "json-tests" }
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10
src/error.rs
10
src/error.rs
@ -3,6 +3,7 @@
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use rustc_serialize::hex::FromHexError;
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use network::NetworkError;
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use rlp::DecoderError;
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use io;
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#[derive(Debug)]
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pub enum BaseDataError {
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@ -13,7 +14,8 @@ pub enum BaseDataError {
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/// General error type which should be capable of representing all errors in ethcore.
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pub enum UtilError {
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Crypto(::crypto::CryptoError),
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Io(::std::io::Error),
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StdIo(::std::io::Error),
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Io(io::IoError),
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AddressParse(::std::net::AddrParseError),
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AddressResolve(Option<::std::io::Error>),
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FromHex(FromHexError),
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@ -43,6 +45,12 @@ impl From<NetworkError> for UtilError {
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impl From<::std::io::Error> for UtilError {
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fn from(err: ::std::io::Error) -> UtilError {
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UtilError::StdIo(err)
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}
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}
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impl From<io::IoError> for UtilError {
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fn from(err: io::IoError) -> UtilError {
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UtilError::Io(err)
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}
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}
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10
src/hash.rs
10
src/hash.rs
@ -458,6 +458,16 @@ impl From<H256> for Address {
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}
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}
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}
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impl From<H256> for H64 {
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fn from(value: H256) -> H64 {
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unsafe {
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let mut ret: H64 = ::std::mem::uninitialized();
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::std::ptr::copy(value.as_ptr().offset(20), ret.as_mut_ptr(), 8);
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ret
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}
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}
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}
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/*
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impl<'_> From<&'_ H256> for Address {
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fn from(value: &'_ H256) -> Address {
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107
src/io/mod.rs
Normal file
107
src/io/mod.rs
Normal file
@ -0,0 +1,107 @@
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/// General IO module.
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///
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/// Example usage for craeting a network service and adding an IO handler:
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///
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/// ```rust
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/// extern crate ethcore_util;
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/// use ethcore_util::*;
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///
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/// struct MyHandler;
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///
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/// struct MyMessage {
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/// data: u32
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/// }
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///
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/// impl IoHandler<MyMessage> for MyHandler {
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/// fn initialize(&mut self, io: &mut IoContext<MyMessage>) {
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/// io.register_timer(1000).unwrap();
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/// }
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///
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/// fn timeout(&mut self, _io: &mut IoContext<MyMessage>, timer: TimerToken) {
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/// println!("Timeout {}", timer);
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/// }
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///
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/// fn message(&mut self, _io: &mut IoContext<MyMessage>, message: &mut MyMessage) {
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/// println!("Message {}", message.data);
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/// }
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/// }
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///
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/// fn main () {
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/// let mut service = IoService::<MyMessage>::start().expect("Error creating network service");
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/// service.register_handler(Box::new(MyHandler)).unwrap();
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///
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/// // Wait for quit condition
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/// // ...
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/// // Drop the service
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/// }
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/// ```
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mod service;
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#[derive(Debug)]
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pub enum IoError {
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Mio(::std::io::Error),
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}
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impl<Message> From<::mio::NotifyError<service::IoMessage<Message>>> for IoError where Message: Send {
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fn from(_err: ::mio::NotifyError<service::IoMessage<Message>>) -> IoError {
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IoError::Mio(::std::io::Error::new(::std::io::ErrorKind::ConnectionAborted, "Network IO notification error"))
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}
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}
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/// Generic IO handler.
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/// All the handler function are called from within IO event loop.
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/// `Message` type is used as notification data
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pub trait IoHandler<Message>: Send where Message: Send + 'static {
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/// Initialize the handler
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fn initialize<'s>(&'s mut self, _io: &mut IoContext<'s, Message>) {}
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/// Timer function called after a timeout created with `HandlerIo::timeout`.
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fn timeout<'s>(&'s mut self, _io: &mut IoContext<'s, Message>, _timer: TimerToken) {}
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/// Called when a broadcasted message is received. The message can only be sent from a different IO handler.
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fn message<'s>(&'s mut self, _io: &mut IoContext<'s, Message>, _message: &'s mut Message) {} // TODO: make message immutable and provide internal channel for adding network handler
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/// Called when an IO stream gets closed
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fn stream_hup<'s>(&'s mut self, _io: &mut IoContext<'s, Message>, _stream: StreamToken) {}
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/// Called when an IO stream can be read from
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fn stream_readable<'s>(&'s mut self, _io: &mut IoContext<'s, Message>, _stream: StreamToken) {}
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/// Called when an IO stream can be written to
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fn stream_writable<'s>(&'s mut self, _io: &mut IoContext<'s, Message>, _stream: StreamToken) {}
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}
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pub type TimerToken = service::TimerToken;
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pub type StreamToken = service::StreamToken;
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pub type IoContext<'s, M> = service::IoContext<'s, M>;
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pub type IoService<M> = service::IoService<M>;
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pub type IoChannel<M> = service::IoChannel<M>;
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//pub const USER_TOKEN_START: usize = service::USER_TOKEN; // TODO: ICE in rustc 1.7.0-nightly (49c382779 2016-01-12)
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#[cfg(test)]
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mod tests {
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use io::*;
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struct MyHandler;
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struct MyMessage {
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data: u32
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}
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impl IoHandler<MyMessage> for MyHandler {
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fn initialize(&mut self, io: &mut IoContext<MyMessage>) {
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io.register_timer(1000).unwrap();
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}
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fn timeout(&mut self, _io: &mut IoContext<MyMessage>, timer: TimerToken) {
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println!("Timeout {}", timer);
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}
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fn message(&mut self, _io: &mut IoContext<MyMessage>, message: &mut MyMessage) {
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println!("Message {}", message.data);
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}
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}
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#[test]
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fn test_service_register_handler () {
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let mut service = IoService::<MyMessage>::start().expect("Error creating network service");
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service.register_handler(Box::new(MyHandler)).unwrap();
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}
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}
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211
src/io/service.rs
Normal file
211
src/io/service.rs
Normal file
@ -0,0 +1,211 @@
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use std::thread::{self, JoinHandle};
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use mio::*;
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use mio::util::{Slab};
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use hash::*;
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use rlp::*;
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use error::*;
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use io::{IoError, IoHandler};
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pub type TimerToken = usize;
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pub type StreamToken = usize;
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// Tokens
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const MAX_USER_TIMERS: usize = 32;
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const USER_TIMER: usize = 0;
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const LAST_USER_TIMER: usize = USER_TIMER + MAX_USER_TIMERS - 1;
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//const USER_TOKEN: usize = LAST_USER_TIMER + 1;
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/// Messages used to communicate with the event loop from other threads.
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pub enum IoMessage<Message> where Message: Send + Sized {
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/// Shutdown the event loop
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Shutdown,
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/// Register a new protocol handler.
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AddHandler {
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handler: Box<IoHandler<Message>+Send>,
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},
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/// Broadcast a message across all protocol handlers.
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UserMessage(Message)
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}
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/// IO access point. This is passed to all IO handlers and provides an interface to the IO subsystem.
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pub struct IoContext<'s, Message> where Message: Send + 'static {
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timers: &'s mut Slab<UserTimer>,
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/// Low leve MIO Event loop for custom handler registration.
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pub event_loop: &'s mut EventLoop<IoManager<Message>>,
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}
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impl<'s, Message> IoContext<'s, Message> where Message: Send + 'static {
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/// Create a new IO access point. Takes references to all the data that can be updated within the IO handler.
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fn new(event_loop: &'s mut EventLoop<IoManager<Message>>, timers: &'s mut Slab<UserTimer>) -> IoContext<'s, Message> {
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IoContext {
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event_loop: event_loop,
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timers: timers,
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}
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}
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/// Register a new IO timer. Returns a new timer token. 'IoHandler::timeout' will be called with the token.
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pub fn register_timer(&mut self, ms: u64) -> Result<TimerToken, UtilError> {
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match self.timers.insert(UserTimer {
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delay: ms,
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}) {
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Ok(token) => {
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self.event_loop.timeout_ms(token, ms).expect("Error registering user timer");
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Ok(token.as_usize())
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},
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_ => { panic!("Max timers reached") }
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}
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}
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/// Broadcast a message to other IO clients
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pub fn message(&mut self, message: Message) {
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match self.event_loop.channel().send(IoMessage::UserMessage(message)) {
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Ok(_) => {}
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Err(e) => { panic!("Error sending io message {:?}", e); }
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}
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}
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}
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struct UserTimer {
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delay: u64,
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}
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/// Root IO handler. Manages user handlers, messages and IO timers.
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pub struct IoManager<Message> where Message: Send {
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timers: Slab<UserTimer>,
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handlers: Vec<Box<IoHandler<Message>>>,
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}
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impl<Message> IoManager<Message> where Message: Send + 'static {
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/// Creates a new instance and registers it with the event loop.
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pub fn start(event_loop: &mut EventLoop<IoManager<Message>>) -> Result<(), UtilError> {
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let mut io = IoManager {
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timers: Slab::new_starting_at(Token(USER_TIMER), MAX_USER_TIMERS),
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handlers: Vec::new(),
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};
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try!(event_loop.run(&mut io));
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Ok(())
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}
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}
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impl<Message> Handler for IoManager<Message> where Message: Send + 'static {
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type Timeout = Token;
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type Message = IoMessage<Message>;
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fn ready(&mut self, event_loop: &mut EventLoop<Self>, token: Token, events: EventSet) {
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if events.is_hup() {
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for h in self.handlers.iter_mut() {
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h.stream_hup(&mut IoContext::new(event_loop, &mut self.timers), token.as_usize());
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}
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}
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else if events.is_readable() {
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for h in self.handlers.iter_mut() {
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h.stream_readable(&mut IoContext::new(event_loop, &mut self.timers), token.as_usize());
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}
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}
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else if events.is_writable() {
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for h in self.handlers.iter_mut() {
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h.stream_writable(&mut IoContext::new(event_loop, &mut self.timers), token.as_usize());
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}
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}
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}
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fn timeout(&mut self, event_loop: &mut EventLoop<Self>, token: Token) {
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match token.as_usize() {
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USER_TIMER ... LAST_USER_TIMER => {
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let delay = {
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let timer = self.timers.get_mut(token).expect("Unknown user timer token");
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timer.delay
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};
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for h in self.handlers.iter_mut() {
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h.timeout(&mut IoContext::new(event_loop, &mut self.timers), token.as_usize());
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}
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event_loop.timeout_ms(token, delay).expect("Error re-registering user timer");
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}
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_ => { // Just pass the event down. IoHandler is supposed to re-register it if required.
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for h in self.handlers.iter_mut() {
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h.timeout(&mut IoContext::new(event_loop, &mut self.timers), token.as_usize());
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}
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}
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}
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}
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fn notify(&mut self, event_loop: &mut EventLoop<Self>, msg: Self::Message) {
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let mut m = msg;
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match m {
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IoMessage::Shutdown => event_loop.shutdown(),
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IoMessage::AddHandler {
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handler,
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} => {
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self.handlers.push(handler);
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self.handlers.last_mut().unwrap().initialize(&mut IoContext::new(event_loop, &mut self.timers));
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},
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IoMessage::UserMessage(ref mut data) => {
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for h in self.handlers.iter_mut() {
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h.message(&mut IoContext::new(event_loop, &mut self.timers), data);
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}
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}
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}
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}
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}
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/// Allows sending messages into the event loop. All the IO handlers will get the message
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/// in the `message` callback.
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pub struct IoChannel<Message> where Message: Send {
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channel: Sender<IoMessage<Message>>
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}
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impl<Message> IoChannel<Message> where Message: Send {
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pub fn send(&mut self, message: Message) -> Result<(), IoError> {
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try!(self.channel.send(IoMessage::UserMessage(message)));
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Ok(())
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}
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}
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/// General IO Service. Starts an event loop and dispatches IO requests.
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/// 'Message' is a notification message type
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pub struct IoService<Message> where Message: Send + 'static {
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thread: Option<JoinHandle<()>>,
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host_channel: Sender<IoMessage<Message>>
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}
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impl<Message> IoService<Message> where Message: Send + 'static {
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/// Starts IO event loop
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pub fn start() -> Result<IoService<Message>, UtilError> {
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let mut event_loop = EventLoop::new().unwrap();
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let channel = event_loop.channel();
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let thread = thread::spawn(move || {
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IoManager::<Message>::start(&mut event_loop).unwrap(); //TODO:
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});
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Ok(IoService {
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thread: Some(thread),
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host_channel: channel
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})
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}
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/// Regiter a IO hadnler with the event loop.
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pub fn register_handler(&mut self, handler: Box<IoHandler<Message>+Send>) -> Result<(), IoError> {
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try!(self.host_channel.send(IoMessage::AddHandler {
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handler: handler,
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}));
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Ok(())
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}
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/// Send a message over the network. Normaly `HostIo::send` should be used. This can be used from non-io threads.
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pub fn send_message(&mut self, message: Message) -> Result<(), IoError> {
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try!(self.host_channel.send(IoMessage::UserMessage(message)));
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Ok(())
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}
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/// Create a new message channel
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pub fn channel(&mut self) -> IoChannel<Message> {
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IoChannel { channel: self.host_channel.clone() }
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}
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}
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impl<Message> Drop for IoService<Message> where Message: Send {
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fn drop(&mut self) {
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self.host_channel.send(IoMessage::Shutdown).unwrap();
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self.thread.take().unwrap().join().unwrap();
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}
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}
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@ -30,6 +30,7 @@
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//! sudo make install
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//! ```
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extern crate slab;
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extern crate rustc_serialize;
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extern crate mio;
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extern crate rand;
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@ -76,6 +77,7 @@ pub mod nibbleslice;
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pub mod heapsizeof;
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pub mod squeeze;
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pub mod semantic_version;
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pub mod io;
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pub mod network;
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pub use common::*;
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@ -95,3 +97,4 @@ pub use heapsizeof::*;
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pub use squeeze::*;
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pub use semantic_version::*;
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pub use network::*;
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pub use io::*;
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@ -1,14 +1,13 @@
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use std::collections::VecDeque;
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use mio::{Token, EventSet, EventLoop, Timeout, PollOpt, TryRead, TryWrite};
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use mio::{Handler, Token, EventSet, EventLoop, Timeout, PollOpt, TryRead, TryWrite};
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use mio::tcp::*;
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use hash::*;
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use sha3::*;
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use bytes::*;
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use rlp::*;
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use std::io::{self, Cursor, Read};
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use network::host::{Host};
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use error::*;
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use network::NetworkError;
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use network::error::NetworkError;
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use network::handshake::Handshake;
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use crypto;
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use rcrypto::blockmodes::*;
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@ -133,7 +132,7 @@ impl Connection {
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}
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/// Register this connection with the IO event loop.
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pub fn register(&mut self, event_loop: &mut EventLoop<Host>) -> io::Result<()> {
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pub fn register<Host: Handler>(&mut self, event_loop: &mut EventLoop<Host>) -> io::Result<()> {
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trace!(target: "net", "connection register; token={:?}", self.token);
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self.interest.insert(EventSet::readable());
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event_loop.register(&self.socket, self.token, self.interest, PollOpt::edge() | PollOpt::oneshot()).or_else(|e| {
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@ -143,7 +142,7 @@ impl Connection {
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}
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/// Update connection registration. Should be called at the end of the IO handler.
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pub fn reregister(&mut self, event_loop: &mut EventLoop<Host>) -> io::Result<()> {
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pub fn reregister<Host: Handler>(&mut self, event_loop: &mut EventLoop<Host>) -> io::Result<()> {
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trace!(target: "net", "connection reregister; token={:?}", self.token);
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event_loop.reregister( &self.socket, self.token, self.interest, PollOpt::edge() | PollOpt::oneshot()).or_else(|e| {
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error!("Failed to reregister {:?}, {:?}", self.token, e);
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@ -338,7 +337,7 @@ impl EncryptedConnection {
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}
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/// Readable IO handler. Tracker receive status and returns decoded packet if avaialable.
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pub fn readable(&mut self, event_loop: &mut EventLoop<Host>) -> Result<Option<Packet>, UtilError> {
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pub fn readable<Host:Handler>(&mut self, event_loop: &mut EventLoop<Host>) -> Result<Option<Packet>, UtilError> {
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self.idle_timeout.map(|t| event_loop.clear_timeout(t));
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match self.read_state {
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EncryptedConnectionState::Header => {
|
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@ -364,14 +363,14 @@ impl EncryptedConnection {
|
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}
|
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|
||||
/// Writable IO handler. Processes send queeue.
|
||||
pub fn writable(&mut self, event_loop: &mut EventLoop<Host>) -> Result<(), UtilError> {
|
||||
pub fn writable<Host:Handler>(&mut self, event_loop: &mut EventLoop<Host>) -> Result<(), UtilError> {
|
||||
self.idle_timeout.map(|t| event_loop.clear_timeout(t));
|
||||
try!(self.connection.writable());
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// Register this connection with the event handler.
|
||||
pub fn register(&mut self, event_loop: &mut EventLoop<Host>) -> Result<(), UtilError> {
|
||||
pub fn register<Host:Handler<Timeout=Token>>(&mut self, event_loop: &mut EventLoop<Host>) -> Result<(), UtilError> {
|
||||
self.connection.expect(ENCRYPTED_HEADER_LEN);
|
||||
self.idle_timeout.map(|t| event_loop.clear_timeout(t));
|
||||
self.idle_timeout = event_loop.timeout_ms(self.connection.token, 1800).ok();
|
||||
@ -380,7 +379,7 @@ impl EncryptedConnection {
|
||||
}
|
||||
|
||||
/// Update connection registration. This should be called at the end of the event loop.
|
||||
pub fn reregister(&mut self, event_loop: &mut EventLoop<Host>) -> Result<(), UtilError> {
|
||||
pub fn reregister<Host:Handler>(&mut self, event_loop: &mut EventLoop<Host>) -> Result<(), UtilError> {
|
||||
try!(self.connection.reregister(event_loop));
|
||||
Ok(())
|
||||
}
|
||||
|
||||
@ -10,7 +10,7 @@ use mio::udp::*;
|
||||
use hash::*;
|
||||
use sha3::Hashable;
|
||||
use crypto::*;
|
||||
use network::host::*;
|
||||
use network::node::*;
|
||||
|
||||
const ADDRESS_BYTES_SIZE: u32 = 32; ///< Size of address type in bytes.
|
||||
const ADDRESS_BITS: u32 = 8 * ADDRESS_BYTES_SIZE; ///< Denoted by n in [Kademlia].
|
||||
@ -70,14 +70,14 @@ impl Discovery {
|
||||
self.node_buckets[Discovery::distance(&self.id, &id) as usize].nodes.push(id.clone());
|
||||
}
|
||||
|
||||
fn start_node_discovery(&mut self, event_loop: &mut EventLoop<Host>) {
|
||||
fn start_node_discovery<Host:Handler>(&mut self, event_loop: &mut EventLoop<Host>) {
|
||||
self.discovery_round = 0;
|
||||
self.discovery_id.randomize();
|
||||
self.discovery_nodes.clear();
|
||||
self.discover(event_loop);
|
||||
}
|
||||
|
||||
fn discover(&mut self, event_loop: &mut EventLoop<Host>) {
|
||||
fn discover<Host:Handler>(&mut self, event_loop: &mut EventLoop<Host>) {
|
||||
if self.discovery_round == DISCOVERY_MAX_STEPS
|
||||
{
|
||||
debug!("Restarting discovery");
|
||||
|
||||
@ -6,9 +6,10 @@ use bytes::Bytes;
|
||||
use crypto::*;
|
||||
use crypto;
|
||||
use network::connection::{Connection};
|
||||
use network::host::{NodeId, Host, HostInfo};
|
||||
use network::host::{HostInfo};
|
||||
use network::node::NodeId;
|
||||
use error::*;
|
||||
use network::NetworkError;
|
||||
use network::error::NetworkError;
|
||||
|
||||
#[derive(PartialEq, Eq, Debug)]
|
||||
enum HandshakeState {
|
||||
@ -88,7 +89,7 @@ impl Handshake {
|
||||
}
|
||||
|
||||
/// Readable IO handler. Drives the state change.
|
||||
pub fn readable(&mut self, event_loop: &mut EventLoop<Host>, host: &HostInfo) -> Result<(), UtilError> {
|
||||
pub fn readable<Host:Handler>(&mut self, event_loop: &mut EventLoop<Host>, host: &HostInfo) -> Result<(), UtilError> {
|
||||
self.idle_timeout.map(|t| event_loop.clear_timeout(t));
|
||||
match self.state {
|
||||
HandshakeState::ReadingAuth => {
|
||||
@ -118,7 +119,7 @@ impl Handshake {
|
||||
}
|
||||
|
||||
/// Writabe IO handler.
|
||||
pub fn writable(&mut self, event_loop: &mut EventLoop<Host>, _host: &HostInfo) -> Result<(), UtilError> {
|
||||
pub fn writable<Host:Handler>(&mut self, event_loop: &mut EventLoop<Host>, _host: &HostInfo) -> Result<(), UtilError> {
|
||||
self.idle_timeout.map(|t| event_loop.clear_timeout(t));
|
||||
try!(self.connection.writable());
|
||||
if self.state != HandshakeState::StartSession {
|
||||
@ -128,7 +129,7 @@ impl Handshake {
|
||||
}
|
||||
|
||||
/// Register the IO handler with the event loop
|
||||
pub fn register(&mut self, event_loop: &mut EventLoop<Host>) -> Result<(), UtilError> {
|
||||
pub fn register<Host:Handler<Timeout=Token>>(&mut self, event_loop: &mut EventLoop<Host>) -> Result<(), UtilError> {
|
||||
self.idle_timeout.map(|t| event_loop.clear_timeout(t));
|
||||
self.idle_timeout = event_loop.timeout_ms(self.connection.token, 1800).ok();
|
||||
try!(self.connection.register(event_loop));
|
||||
|
||||
@ -1,31 +1,30 @@
|
||||
use std::net::{SocketAddr, ToSocketAddrs};
|
||||
use std::mem;
|
||||
use std::net::{SocketAddr};
|
||||
use std::collections::{HashMap};
|
||||
use std::hash::{Hash, Hasher};
|
||||
use std::hash::{Hasher};
|
||||
use std::str::{FromStr};
|
||||
use mio::*;
|
||||
use mio::util::{Slab};
|
||||
use mio::tcp::*;
|
||||
use mio::udp::*;
|
||||
use hash::*;
|
||||
use crypto::*;
|
||||
use sha3::Hashable;
|
||||
use rlp::*;
|
||||
use time::Tm;
|
||||
use network::handshake::Handshake;
|
||||
use network::session::{Session, SessionData};
|
||||
use error::*;
|
||||
use network::ProtocolHandler;
|
||||
use io::*;
|
||||
use network::NetworkProtocolHandler;
|
||||
use network::node::*;
|
||||
|
||||
type Slab<T> = ::slab::Slab<T, usize>;
|
||||
|
||||
const _DEFAULT_PORT: u16 = 30304;
|
||||
|
||||
const MAX_CONNECTIONS: usize = 1024;
|
||||
const MAX_USER_TIMERS: usize = 32;
|
||||
const IDEAL_PEERS: u32 = 10;
|
||||
|
||||
/// Node public key
|
||||
pub type NodeId = H512;
|
||||
/// IO Timer id
|
||||
pub type TimerToken = usize;
|
||||
const MAINTENANCE_TIMEOUT: u64 = 1000;
|
||||
|
||||
#[derive(Debug)]
|
||||
struct NetworkConfiguration {
|
||||
@ -48,88 +47,16 @@ impl NetworkConfiguration {
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
/// Noe address info
|
||||
pub struct NodeEndpoint {
|
||||
/// IP(V4 or V6) address
|
||||
address: SocketAddr,
|
||||
/// Address as string (can be host name).
|
||||
address_str: String,
|
||||
/// Conneciton port.
|
||||
udp_port: u16
|
||||
}
|
||||
|
||||
impl NodeEndpoint {
|
||||
/// Create endpoint from string. Performs name resolution if given a host name.
|
||||
fn from_str(s: &str) -> Result<NodeEndpoint, UtilError> {
|
||||
let address = s.to_socket_addrs().map(|mut i| i.next());
|
||||
match address {
|
||||
Ok(Some(a)) => Ok(NodeEndpoint {
|
||||
address: a,
|
||||
address_str: s.to_string(),
|
||||
udp_port: a.port()
|
||||
}),
|
||||
Ok(_) => Err(UtilError::AddressResolve(None)),
|
||||
Err(e) => Err(UtilError::AddressResolve(Some(e)))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(PartialEq, Eq, Copy, Clone)]
|
||||
enum PeerType {
|
||||
Required,
|
||||
Optional
|
||||
}
|
||||
|
||||
struct Node {
|
||||
id: NodeId,
|
||||
endpoint: NodeEndpoint,
|
||||
peer_type: PeerType,
|
||||
last_attempted: Option<Tm>,
|
||||
}
|
||||
|
||||
impl FromStr for Node {
|
||||
type Err = UtilError;
|
||||
fn from_str(s: &str) -> Result<Self, Self::Err> {
|
||||
let (id, endpoint) = if &s[0..8] == "enode://" && s.len() > 136 && &s[136..137] == "@" {
|
||||
(try!(NodeId::from_str(&s[8..136])), try!(NodeEndpoint::from_str(&s[137..])))
|
||||
}
|
||||
else {
|
||||
(NodeId::new(), try!(NodeEndpoint::from_str(s)))
|
||||
};
|
||||
|
||||
Ok(Node {
|
||||
id: id,
|
||||
endpoint: endpoint,
|
||||
peer_type: PeerType::Optional,
|
||||
last_attempted: None,
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
impl PartialEq for Node {
|
||||
fn eq(&self, other: &Self) -> bool {
|
||||
self.id == other.id
|
||||
}
|
||||
}
|
||||
impl Eq for Node { }
|
||||
|
||||
impl Hash for Node {
|
||||
fn hash<H>(&self, state: &mut H) where H: Hasher {
|
||||
self.id.hash(state)
|
||||
}
|
||||
}
|
||||
|
||||
// Tokens
|
||||
const TCP_ACCEPT: usize = 1;
|
||||
const IDLE: usize = 3;
|
||||
const NODETABLE_RECEIVE: usize = 4;
|
||||
const NODETABLE_MAINTAIN: usize = 5;
|
||||
const NODETABLE_DISCOVERY: usize = 6;
|
||||
const FIRST_CONNECTION: usize = 7;
|
||||
//const TOKEN_BEGIN: usize = USER_TOKEN_START; // TODO: ICE in rustc 1.7.0-nightly (49c382779 2016-01-12)
|
||||
const TOKEN_BEGIN: usize = 32;
|
||||
const TCP_ACCEPT: usize = TOKEN_BEGIN + 1;
|
||||
const IDLE: usize = TOKEN_BEGIN + 2;
|
||||
const NODETABLE_RECEIVE: usize = TOKEN_BEGIN + 3;
|
||||
const NODETABLE_MAINTAIN: usize = TOKEN_BEGIN + 4;
|
||||
const NODETABLE_DISCOVERY: usize = TOKEN_BEGIN + 5;
|
||||
const FIRST_CONNECTION: usize = TOKEN_BEGIN + 16;
|
||||
const LAST_CONNECTION: usize = FIRST_CONNECTION + MAX_CONNECTIONS - 1;
|
||||
const USER_TIMER: usize = LAST_CONNECTION;
|
||||
const LAST_USER_TIMER: usize = USER_TIMER + MAX_USER_TIMERS - 1;
|
||||
|
||||
/// Protocol handler level packet id
|
||||
pub type PacketId = u8;
|
||||
@ -137,12 +64,10 @@ pub type PacketId = u8;
|
||||
pub type ProtocolId = &'static str;
|
||||
|
||||
/// Messages used to communitate with the event loop from other threads.
|
||||
pub enum HostMessage {
|
||||
/// Shutdown the event loop
|
||||
Shutdown,
|
||||
pub enum NetworkIoMessage<Message> where Message: Send {
|
||||
/// Register a new protocol handler.
|
||||
AddHandler {
|
||||
handler: Box<ProtocolHandler+Send>,
|
||||
handler: Option<Box<NetworkProtocolHandler<Message>+Send>>,
|
||||
protocol: ProtocolId,
|
||||
versions: Vec<u8>,
|
||||
},
|
||||
@ -153,19 +78,8 @@ pub enum HostMessage {
|
||||
protocol: ProtocolId,
|
||||
data: Vec<u8>,
|
||||
},
|
||||
/// Broadcast a message across the protocol handlers.
|
||||
UserMessage(UserMessage),
|
||||
}
|
||||
|
||||
/// Id for broadcast message
|
||||
pub type UserMessageId = u32;
|
||||
|
||||
/// User
|
||||
pub struct UserMessage {
|
||||
/// ID of a protocol
|
||||
pub protocol: ProtocolId,
|
||||
pub id: UserMessageId,
|
||||
pub data: Option<Vec<u8>>,
|
||||
/// User message
|
||||
User(Message),
|
||||
}
|
||||
|
||||
/// Local (temporary) peer session ID.
|
||||
@ -190,21 +104,24 @@ impl Encodable for CapabilityInfo {
|
||||
}
|
||||
|
||||
/// IO access point. This is passed to all IO handlers and provides an interface to the IO subsystem.
|
||||
pub struct HostIo<'s> {
|
||||
pub struct NetworkContext<'s, 'io, Message> where Message: Send + 'static, 'io: 's {
|
||||
io: &'s mut IoContext<'io, NetworkIoMessage<Message>>,
|
||||
protocol: ProtocolId,
|
||||
connections: &'s mut Slab<ConnectionEntry>,
|
||||
timers: &'s mut Slab<UserTimer>,
|
||||
session: Option<Token>,
|
||||
event_loop: &'s mut EventLoop<Host>,
|
||||
timers: &'s mut HashMap<TimerToken, ProtocolId>,
|
||||
session: Option<StreamToken>,
|
||||
}
|
||||
|
||||
impl<'s> HostIo<'s> {
|
||||
/// Create a new IO access point. Takes references to all the data that can be updated within the IO handler.
|
||||
fn new(protocol: ProtocolId, session: Option<Token>, event_loop: &'s mut EventLoop<Host>, connections: &'s mut Slab<ConnectionEntry>, timers: &'s mut Slab<UserTimer>) -> HostIo<'s> {
|
||||
HostIo {
|
||||
impl<'s, 'io, Message> NetworkContext<'s, 'io, Message> where Message: Send + 'static, {
|
||||
/// Create a new network IO access point. Takes references to all the data that can be updated within the IO handler.
|
||||
fn new(io: &'s mut IoContext<'io, NetworkIoMessage<Message>>,
|
||||
protocol: ProtocolId,
|
||||
session: Option<StreamToken>, connections: &'s mut Slab<ConnectionEntry>,
|
||||
timers: &'s mut HashMap<TimerToken, ProtocolId>) -> NetworkContext<'s, 'io, Message> {
|
||||
NetworkContext {
|
||||
io: io,
|
||||
protocol: protocol,
|
||||
session: session,
|
||||
event_loop: event_loop,
|
||||
connections: connections,
|
||||
timers: timers,
|
||||
}
|
||||
@ -212,7 +129,7 @@ impl<'s> HostIo<'s> {
|
||||
|
||||
/// Send a packet over the network to another peer.
|
||||
pub fn send(&mut self, peer: PeerId, packet_id: PacketId, data: Vec<u8>) -> Result<(), UtilError> {
|
||||
match self.connections.get_mut(Token(peer)) {
|
||||
match self.connections.get_mut(peer) {
|
||||
Some(&mut ConnectionEntry::Session(ref mut s)) => {
|
||||
s.send_packet(self.protocol, packet_id as u8, &data).unwrap_or_else(|e| {
|
||||
warn!(target: "net", "Send error: {:?}", e);
|
||||
@ -228,49 +145,40 @@ impl<'s> HostIo<'s> {
|
||||
/// Respond to a current network message. Panics if no there is no packet in the context.
|
||||
pub fn respond(&mut self, packet_id: PacketId, data: Vec<u8>) -> Result<(), UtilError> {
|
||||
match self.session {
|
||||
Some(session) => self.send(session.as_usize(), packet_id, data),
|
||||
Some(session) => self.send(session, packet_id, data),
|
||||
None => {
|
||||
panic!("Respond: Session does not exist")
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Register a new IO timer. Returns a new timer toke. 'ProtocolHandler::timeout' will be called with the token.
|
||||
pub fn register_timer(&mut self, ms: u64) -> Result<TimerToken, UtilError>{
|
||||
match self.timers.insert(UserTimer {
|
||||
delay: ms,
|
||||
protocol: self.protocol,
|
||||
}) {
|
||||
Ok(token) => {
|
||||
self.event_loop.timeout_ms(token, ms).expect("Error registering user timer");
|
||||
Ok(token.as_usize())
|
||||
},
|
||||
_ => { panic!("Max timers reached") }
|
||||
}
|
||||
}
|
||||
|
||||
/// Broadcast a message to other IO clients
|
||||
pub fn message(&mut self, id: UserMessageId, data: Option<Vec<u8>>) {
|
||||
match self.event_loop.channel().send(HostMessage::UserMessage(UserMessage {
|
||||
protocol: self.protocol,
|
||||
id: id,
|
||||
data: data
|
||||
})) {
|
||||
Ok(_) => {}
|
||||
Err(e) => { panic!("Error sending io message {:?}", e); }
|
||||
}
|
||||
}
|
||||
|
||||
/// Disable current protocol capability for given peer. If no capabilities left peer gets disconnected.
|
||||
pub fn disable_peer(&mut self, _peer: PeerId) {
|
||||
//TODO: remove capability, disconnect if no capabilities left
|
||||
}
|
||||
|
||||
}
|
||||
/// Register a new IO timer. Returns a new timer token. 'NetworkProtocolHandler::timeout' will be called with the token.
|
||||
pub fn register_timer(&mut self, ms: u64) -> Result<TimerToken, UtilError>{
|
||||
match self.io.register_timer(ms) {
|
||||
Ok(token) => {
|
||||
self.timers.insert(token, self.protocol);
|
||||
Ok(token)
|
||||
},
|
||||
e => e,
|
||||
}
|
||||
}
|
||||
|
||||
struct UserTimer {
|
||||
protocol: ProtocolId,
|
||||
delay: u64,
|
||||
/// Returns peer identification string
|
||||
pub fn peer_info(&self, peer: PeerId) -> String {
|
||||
match self.connections.get(peer) {
|
||||
Some(&ConnectionEntry::Session(ref s)) => {
|
||||
s.info.client_version.clone()
|
||||
},
|
||||
_ => {
|
||||
"unknown".to_string()
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Shared host information
|
||||
@ -315,67 +223,40 @@ enum ConnectionEntry {
|
||||
}
|
||||
|
||||
/// Root IO handler. Manages protocol handlers, IO timers and network connections.
|
||||
pub struct Host {
|
||||
info: HostInfo,
|
||||
_udp_socket: UdpSocket,
|
||||
_listener: TcpListener,
|
||||
pub struct Host<Message> where Message: Send {
|
||||
pub info: HostInfo,
|
||||
udp_socket: UdpSocket,
|
||||
listener: TcpListener,
|
||||
connections: Slab<ConnectionEntry>,
|
||||
timers: Slab<UserTimer>,
|
||||
timers: HashMap<TimerToken, ProtocolId>,
|
||||
nodes: HashMap<NodeId, Node>,
|
||||
handlers: HashMap<ProtocolId, Box<ProtocolHandler>>,
|
||||
_idle_timeout: Timeout,
|
||||
handlers: HashMap<ProtocolId, Box<NetworkProtocolHandler<Message>>>,
|
||||
}
|
||||
|
||||
impl Host {
|
||||
/// Creates a new instance and registers it with the event loop.
|
||||
pub fn start(event_loop: &mut EventLoop<Host>) -> Result<(), UtilError> {
|
||||
impl<Message> Host<Message> where Message: Send {
|
||||
pub fn new() -> Host<Message> {
|
||||
let config = NetworkConfiguration::new();
|
||||
/*
|
||||
match ::ifaces::Interface::get_all().unwrap().into_iter().filter(|x| x.kind == ::ifaces::Kind::Packet && x.addr.is_some()).next() {
|
||||
Some(iface) => config.public_address = iface.addr.unwrap(),
|
||||
None => warn!("No public network interface"),
|
||||
*/
|
||||
|
||||
let addr = config.listen_address;
|
||||
// Setup the server socket
|
||||
let listener = TcpListener::bind(&addr).unwrap();
|
||||
// Start listening for incoming connections
|
||||
event_loop.register(&listener, Token(TCP_ACCEPT), EventSet::readable(), PollOpt::edge()).unwrap();
|
||||
let idle_timeout = event_loop.timeout_ms(Token(IDLE), 1000).unwrap(); //TODO: check delay
|
||||
// open the udp socket
|
||||
let udp_socket = UdpSocket::bound(&addr).unwrap();
|
||||
event_loop.register(&udp_socket, Token(NODETABLE_RECEIVE), EventSet::readable(), PollOpt::edge()).unwrap();
|
||||
event_loop.timeout_ms(Token(NODETABLE_MAINTAIN), 7200).unwrap();
|
||||
let port = config.listen_address.port();
|
||||
|
||||
let mut host = Host {
|
||||
Host::<Message> {
|
||||
info: HostInfo {
|
||||
keys: KeyPair::create().unwrap(),
|
||||
config: config,
|
||||
nonce: H256::random(),
|
||||
protocol_version: 4,
|
||||
client_version: "parity".to_string(),
|
||||
listen_port: port,
|
||||
listen_port: 0,
|
||||
capabilities: Vec::new(),
|
||||
},
|
||||
_udp_socket: udp_socket,
|
||||
_listener: listener,
|
||||
connections: Slab::new_starting_at(Token(FIRST_CONNECTION), MAX_CONNECTIONS),
|
||||
timers: Slab::new_starting_at(Token(USER_TIMER), MAX_USER_TIMERS),
|
||||
udp_socket: udp_socket,
|
||||
listener: listener,
|
||||
connections: Slab::new_starting_at(FIRST_CONNECTION, MAX_CONNECTIONS),
|
||||
timers: HashMap::new(),
|
||||
nodes: HashMap::new(),
|
||||
handlers: HashMap::new(),
|
||||
_idle_timeout: idle_timeout,
|
||||
};
|
||||
|
||||
host.add_node("enode://c022e7a27affdd1632f2e67dffeb87f02bf506344bb142e08d12b28e7e5c6e5dbb8183a46a77bff3631b51c12e8cf15199f797feafdc8834aaf078ad1a2bcfa0@127.0.0.1:30303");
|
||||
host.add_node("enode://5374c1bff8df923d3706357eeb4983cd29a63be40a269aaa2296ee5f3b2119a8978c0ed68b8f6fc84aad0df18790417daadf91a4bfbb786a16c9b0a199fa254a@gav.ethdev.com:30300");
|
||||
host.add_node("enode://e58d5e26b3b630496ec640f2530f3e7fa8a8c7dfe79d9e9c4aac80e3730132b869c852d3125204ab35bb1b1951f6f2d40996c1034fd8c5a69b383ee337f02ddc@gav.ethdev.com:30303");
|
||||
host.add_node("enode://a979fb575495b8d6db44f750317d0f4622bf4c2aa3365d6af7c284339968eef29b69ad0dce72a4d8db5ebb4968de0e3bec910127f134779fbcb0cb6d3331163c@52.16.188.185:30303");
|
||||
host.add_node("enode://7f25d3eab333a6b98a8b5ed68d962bb22c876ffcd5561fca54e3c2ef27f754df6f7fd7c9b74cc919067abac154fb8e1f8385505954f161ae440abc355855e034@54.207.93.166:30303");
|
||||
host.add_node("enode://5374c1bff8df923d3706357eeb4983cd29a63be40a269aaa2296ee5f3b2119a8978c0ed68b8f6fc84aad0df18790417daadf91a4bfbb786a16c9b0a199fa254a@92.51.165.126:30303");
|
||||
|
||||
try!(event_loop.run(&mut host));
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
fn add_node(&mut self, id: &str) {
|
||||
@ -387,8 +268,9 @@ impl Host {
|
||||
}
|
||||
}
|
||||
|
||||
fn maintain_network(&mut self, event_loop: &mut EventLoop<Host>) {
|
||||
self.connect_peers(event_loop);
|
||||
fn maintain_network(&mut self, io: &mut IoContext<NetworkIoMessage<Message>>) {
|
||||
self.connect_peers(io);
|
||||
io.event_loop.timeout_ms(Token(IDLE), MAINTENANCE_TIMEOUT).unwrap();
|
||||
}
|
||||
|
||||
fn have_session(&self, id: &NodeId) -> bool {
|
||||
@ -399,8 +281,7 @@ impl Host {
|
||||
self.connections.iter().any(|e| match e { &ConnectionEntry::Handshake(ref h) => h.id.eq(&id), _ => false })
|
||||
}
|
||||
|
||||
fn connect_peers(&mut self, event_loop: &mut EventLoop<Host>) {
|
||||
|
||||
fn connect_peers(&mut self, io: &mut IoContext<NetworkIoMessage<Message>>) {
|
||||
struct NodeInfo {
|
||||
id: NodeId,
|
||||
peer_type: PeerType
|
||||
@ -425,7 +306,7 @@ impl Host {
|
||||
for n in to_connect.iter() {
|
||||
if n.peer_type == PeerType::Required {
|
||||
if req_conn < IDEAL_PEERS {
|
||||
self.connect_peer(&n.id, event_loop);
|
||||
self.connect_peer(&n.id, io);
|
||||
}
|
||||
req_conn += 1;
|
||||
}
|
||||
@ -440,14 +321,14 @@ impl Host {
|
||||
for n in to_connect.iter() {
|
||||
if n.peer_type == PeerType::Optional && open_slots > 0 {
|
||||
open_slots -= 1;
|
||||
self.connect_peer(&n.id, event_loop);
|
||||
self.connect_peer(&n.id, io);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn connect_peer(&mut self, id: &NodeId, event_loop: &mut EventLoop<Host>) {
|
||||
fn connect_peer(&mut self, id: &NodeId, io: &mut IoContext<NetworkIoMessage<Message>>) {
|
||||
if self.have_session(id)
|
||||
{
|
||||
warn!("Aborted connect. Node already connected.");
|
||||
@ -473,12 +354,12 @@ impl Host {
|
||||
};
|
||||
|
||||
let nonce = self.info.next_nonce();
|
||||
match self.connections.insert_with(|token| ConnectionEntry::Handshake(Handshake::new(token, id, socket, &nonce).expect("Can't create handshake"))) {
|
||||
match self.connections.insert_with(|token| ConnectionEntry::Handshake(Handshake::new(Token(token), id, socket, &nonce).expect("Can't create handshake"))) {
|
||||
Some(token) => {
|
||||
match self.connections.get_mut(token) {
|
||||
Some(&mut ConnectionEntry::Handshake(ref mut h)) => {
|
||||
h.start(&self.info, true)
|
||||
.and_then(|_| h.register(event_loop))
|
||||
.and_then(|_| h.register(io.event_loop))
|
||||
.unwrap_or_else (|e| {
|
||||
debug!(target: "net", "Handshake create error: {:?}", e);
|
||||
});
|
||||
@ -491,23 +372,23 @@ impl Host {
|
||||
}
|
||||
|
||||
|
||||
fn accept(&mut self, _event_loop: &mut EventLoop<Host>) {
|
||||
fn accept(&mut self, _io: &mut IoContext<NetworkIoMessage<Message>>) {
|
||||
trace!(target: "net", "accept");
|
||||
}
|
||||
|
||||
fn connection_writable(&mut self, token: Token, event_loop: &mut EventLoop<Host>) {
|
||||
fn connection_writable<'s>(&'s mut self, token: StreamToken, io: &mut IoContext<'s, NetworkIoMessage<Message>>) {
|
||||
let mut kill = false;
|
||||
let mut create_session = false;
|
||||
match self.connections.get_mut(token) {
|
||||
Some(&mut ConnectionEntry::Handshake(ref mut h)) => {
|
||||
h.writable(event_loop, &self.info).unwrap_or_else(|e| {
|
||||
h.writable(io.event_loop, &self.info).unwrap_or_else(|e| {
|
||||
debug!(target: "net", "Handshake write error: {:?}", e);
|
||||
kill = true;
|
||||
});
|
||||
create_session = h.done();
|
||||
},
|
||||
Some(&mut ConnectionEntry::Session(ref mut s)) => {
|
||||
s.writable(event_loop, &self.info).unwrap_or_else(|e| {
|
||||
s.writable(io.event_loop, &self.info).unwrap_or_else(|e| {
|
||||
debug!(target: "net", "Session write error: {:?}", e);
|
||||
kill = true;
|
||||
});
|
||||
@ -517,38 +398,38 @@ impl Host {
|
||||
}
|
||||
}
|
||||
if kill {
|
||||
self.kill_connection(token, event_loop);
|
||||
}
|
||||
if create_session {
|
||||
self.start_session(token, event_loop);
|
||||
self.kill_connection(token, io);
|
||||
return;
|
||||
} else if create_session {
|
||||
self.start_session(token, io);
|
||||
}
|
||||
match self.connections.get_mut(token) {
|
||||
Some(&mut ConnectionEntry::Session(ref mut s)) => {
|
||||
s.reregister(event_loop).unwrap_or_else(|e| debug!(target: "net", "Session registration error: {:?}", e));
|
||||
s.reregister(io.event_loop).unwrap_or_else(|e| debug!(target: "net", "Session registration error: {:?}", e));
|
||||
},
|
||||
_ => (),
|
||||
}
|
||||
}
|
||||
|
||||
fn connection_closed(&mut self, token: Token, event_loop: &mut EventLoop<Host>) {
|
||||
self.kill_connection(token, event_loop);
|
||||
fn connection_closed<'s>(&'s mut self, token: TimerToken, io: &mut IoContext<'s, NetworkIoMessage<Message>>) {
|
||||
self.kill_connection(token, io);
|
||||
}
|
||||
|
||||
fn connection_readable(&mut self, token: Token, event_loop: &mut EventLoop<Host>) {
|
||||
fn connection_readable<'s>(&'s mut self, token: StreamToken, io: &mut IoContext<'s, NetworkIoMessage<Message>>) {
|
||||
let mut kill = false;
|
||||
let mut create_session = false;
|
||||
let mut ready_data: Vec<ProtocolId> = Vec::new();
|
||||
let mut packet_data: Option<(ProtocolId, PacketId, Vec<u8>)> = None;
|
||||
match self.connections.get_mut(token) {
|
||||
Some(&mut ConnectionEntry::Handshake(ref mut h)) => {
|
||||
h.readable(event_loop, &self.info).unwrap_or_else(|e| {
|
||||
h.readable(io.event_loop, &self.info).unwrap_or_else(|e| {
|
||||
debug!(target: "net", "Handshake read error: {:?}", e);
|
||||
kill = true;
|
||||
});
|
||||
create_session = h.done();
|
||||
},
|
||||
Some(&mut ConnectionEntry::Session(ref mut s)) => {
|
||||
let sd = { s.readable(event_loop, &self.info).unwrap_or_else(|e| {
|
||||
let sd = { s.readable(io.event_loop, &self.info).unwrap_or_else(|e| {
|
||||
debug!(target: "net", "Session read error: {:?}", e);
|
||||
kill = true;
|
||||
SessionData::None
|
||||
@ -579,33 +460,49 @@ impl Host {
|
||||
}
|
||||
}
|
||||
if kill {
|
||||
self.kill_connection(token, event_loop);
|
||||
self.kill_connection(token, io);
|
||||
return;
|
||||
}
|
||||
if create_session {
|
||||
self.start_session(token, event_loop);
|
||||
self.start_session(token, io);
|
||||
}
|
||||
for p in ready_data {
|
||||
let mut h = self.handlers.get_mut(p).unwrap();
|
||||
h.connected(&mut HostIo::new(p, Some(token), event_loop, &mut self.connections, &mut self.timers), &token.as_usize());
|
||||
h.connected(&mut NetworkContext::new(io, p, Some(token), &mut self.connections, &mut self.timers), &token);
|
||||
}
|
||||
if let Some((p, packet_id, data)) = packet_data {
|
||||
let mut h = self.handlers.get_mut(p).unwrap();
|
||||
h.read(&mut HostIo::new(p, Some(token), event_loop, &mut self.connections, &mut self.timers), &token.as_usize(), packet_id, &data[1..]);
|
||||
h.read(&mut NetworkContext::new(io, p, Some(token), &mut self.connections, &mut self.timers), &token, packet_id, &data[1..]);
|
||||
}
|
||||
|
||||
match self.connections.get_mut(token) {
|
||||
Some(&mut ConnectionEntry::Session(ref mut s)) => {
|
||||
s.reregister(event_loop).unwrap_or_else(|e| debug!(target: "net", "Session registration error: {:?}", e));
|
||||
s.reregister(io.event_loop).unwrap_or_else(|e| debug!(target: "net", "Session registration error: {:?}", e));
|
||||
},
|
||||
_ => (),
|
||||
}
|
||||
}
|
||||
|
||||
fn start_session(&mut self, token: Token, event_loop: &mut EventLoop<Host>) {
|
||||
fn start_session(&mut self, token: StreamToken, io: &mut IoContext<NetworkIoMessage<Message>>) {
|
||||
let info = &self.info;
|
||||
// TODO: use slab::replace_with (currently broken)
|
||||
/*
|
||||
match self.connections.remove(token) {
|
||||
Some(ConnectionEntry::Handshake(h)) => {
|
||||
match Session::new(h, io.event_loop, info) {
|
||||
Ok(session) => {
|
||||
assert!(token == self.connections.insert(ConnectionEntry::Session(session)).ok().unwrap());
|
||||
},
|
||||
Err(e) => {
|
||||
debug!(target: "net", "Session construction error: {:?}", e);
|
||||
}
|
||||
}
|
||||
},
|
||||
_ => panic!("Error updating slab with session")
|
||||
}*/
|
||||
self.connections.replace_with(token, |c| {
|
||||
match c {
|
||||
ConnectionEntry::Handshake(h) => Session::new(h, event_loop, info)
|
||||
ConnectionEntry::Handshake(h) => Session::new(h, io.event_loop, info)
|
||||
.map(|s| Some(ConnectionEntry::Session(s)))
|
||||
.unwrap_or_else(|e| {
|
||||
debug!(target: "net", "Session construction error: {:?}", e);
|
||||
@ -616,12 +513,13 @@ impl Host {
|
||||
}).expect("Error updating slab with session");
|
||||
}
|
||||
|
||||
fn connection_timeout(&mut self, token: Token, event_loop: &mut EventLoop<Host>) {
|
||||
self.kill_connection(token, event_loop)
|
||||
fn connection_timeout<'s>(&'s mut self, token: StreamToken, io: &mut IoContext<'s, NetworkIoMessage<Message>>) {
|
||||
self.kill_connection(token, io)
|
||||
}
|
||||
|
||||
fn kill_connection(&mut self, token: Token, event_loop: &mut EventLoop<Host>) {
|
||||
fn kill_connection<'s>(&'s mut self, token: StreamToken, io: &mut IoContext<'s, NetworkIoMessage<Message>>) {
|
||||
let mut to_disconnect: Vec<ProtocolId> = Vec::new();
|
||||
let mut remove = true;
|
||||
match self.connections.get_mut(token) {
|
||||
Some(&mut ConnectionEntry::Handshake(_)) => (), // just abandon handshake
|
||||
Some(&mut ConnectionEntry::Session(ref mut s)) if s.is_ready() => {
|
||||
@ -631,90 +529,112 @@ impl Host {
|
||||
}
|
||||
}
|
||||
},
|
||||
_ => (),
|
||||
_ => {
|
||||
remove = false;
|
||||
},
|
||||
}
|
||||
for p in to_disconnect {
|
||||
let mut h = self.handlers.get_mut(p).unwrap();
|
||||
h.disconnected(&mut HostIo::new(p, Some(token), event_loop, &mut self.connections, &mut self.timers), &token.as_usize());
|
||||
h.disconnected(&mut NetworkContext::new(io, p, Some(token), &mut self.connections, &mut self.timers), &token);
|
||||
}
|
||||
if remove {
|
||||
self.connections.remove(token);
|
||||
}
|
||||
self.connections.remove(token);
|
||||
}
|
||||
}
|
||||
|
||||
impl Handler for Host {
|
||||
type Timeout = Token;
|
||||
type Message = HostMessage;
|
||||
impl<Message> IoHandler<NetworkIoMessage<Message>> for Host<Message> where Message: Send + 'static {
|
||||
/// Initialize networking
|
||||
fn initialize(&mut self, io: &mut IoContext<NetworkIoMessage<Message>>) {
|
||||
/*
|
||||
match ::ifaces::Interface::get_all().unwrap().into_iter().filter(|x| x.kind == ::ifaces::Kind::Packet && x.addr.is_some()).next() {
|
||||
Some(iface) => config.public_address = iface.addr.unwrap(),
|
||||
None => warn!("No public network interface"),
|
||||
*/
|
||||
|
||||
fn ready(&mut self, event_loop: &mut EventLoop<Host>, token: Token, events: EventSet) {
|
||||
if events.is_hup() {
|
||||
trace!(target: "net", "hup");
|
||||
match token.as_usize() {
|
||||
FIRST_CONNECTION ... LAST_CONNECTION => self.connection_closed(token, event_loop),
|
||||
_ => warn!(target: "net", "Unexpected hup"),
|
||||
};
|
||||
}
|
||||
else if events.is_readable() {
|
||||
match token.as_usize() {
|
||||
TCP_ACCEPT => self.accept(event_loop),
|
||||
IDLE => self.maintain_network(event_loop),
|
||||
FIRST_CONNECTION ... LAST_CONNECTION => self.connection_readable(token, event_loop),
|
||||
NODETABLE_RECEIVE => {},
|
||||
_ => panic!("Received unknown readable token"),
|
||||
}
|
||||
}
|
||||
else if events.is_writable() {
|
||||
match token.as_usize() {
|
||||
FIRST_CONNECTION ... LAST_CONNECTION => self.connection_writable(token, event_loop),
|
||||
_ => panic!("Received unknown writable token"),
|
||||
}
|
||||
// Start listening for incoming connections
|
||||
io.event_loop.register(&self.listener, Token(TCP_ACCEPT), EventSet::readable(), PollOpt::edge()).unwrap();
|
||||
io.event_loop.timeout_ms(Token(IDLE), MAINTENANCE_TIMEOUT).unwrap();
|
||||
// open the udp socket
|
||||
io.event_loop.register(&self.udp_socket, Token(NODETABLE_RECEIVE), EventSet::readable(), PollOpt::edge()).unwrap();
|
||||
io.event_loop.timeout_ms(Token(NODETABLE_MAINTAIN), 7200).unwrap();
|
||||
let port = self.info.config.listen_address.port();
|
||||
self.info.listen_port = port;
|
||||
|
||||
//self.add_node("enode://c022e7a27affdd1632f2e67dffeb87f02bf506344bb142e08d12b28e7e5c6e5dbb8183a46a77bff3631b51c12e8cf15199f797feafdc8834aaf078ad1a2bcfa0@127.0.0.1:30303");
|
||||
// GO bootnodes
|
||||
self.add_node("enode://a979fb575495b8d6db44f750317d0f4622bf4c2aa3365d6af7c284339968eef29b69ad0dce72a4d8db5ebb4968de0e3bec910127f134779fbcb0cb6d3331163c@52.16.188.185:30303"); // IE
|
||||
self.add_node("enode://de471bccee3d042261d52e9bff31458daecc406142b401d4cd848f677479f73104b9fdeb090af9583d3391b7f10cb2ba9e26865dd5fca4fcdc0fb1e3b723c786@54.94.239.50:30303"); // BR
|
||||
self.add_node("enode://1118980bf48b0a3640bdba04e0fe78b1add18e1cd99bf22d53daac1fd9972ad650df52176e7c7d89d1114cfef2bc23a2959aa54998a46afcf7d91809f0855082@52.74.57.123:30303"); // SG
|
||||
// ETH/DEV cpp-ethereum (poc-9.ethdev.com)
|
||||
self.add_node("enode://979b7fa28feeb35a4741660a16076f1943202cb72b6af70d327f053e248bab9ba81760f39d0701ef1d8f89cc1fbd2cacba0710a12cd5314d5e0c9021aa3637f9@5.1.83.226:30303");
|
||||
}
|
||||
|
||||
fn stream_hup<'s>(&'s mut self, io: &mut IoContext<'s, NetworkIoMessage<Message>>, stream: StreamToken) {
|
||||
trace!(target: "net", "Hup: {}", stream);
|
||||
match stream {
|
||||
FIRST_CONNECTION ... LAST_CONNECTION => self.connection_closed(stream, io),
|
||||
_ => warn!(target: "net", "Unexpected hup"),
|
||||
};
|
||||
}
|
||||
|
||||
fn stream_readable<'s>(&'s mut self, io: &mut IoContext<'s, NetworkIoMessage<Message>>, stream: StreamToken) {
|
||||
match stream {
|
||||
FIRST_CONNECTION ... LAST_CONNECTION => self.connection_readable(stream, io),
|
||||
NODETABLE_RECEIVE => {},
|
||||
TCP_ACCEPT => self.accept(io),
|
||||
_ => panic!("Received unknown readable token"),
|
||||
}
|
||||
}
|
||||
|
||||
fn timeout(&mut self, event_loop: &mut EventLoop<Host>, token: Token) {
|
||||
match token.as_usize() {
|
||||
IDLE => self.maintain_network(event_loop),
|
||||
FIRST_CONNECTION ... LAST_CONNECTION => self.connection_timeout(token, event_loop),
|
||||
fn stream_writable<'s>(&'s mut self, io: &mut IoContext<'s, NetworkIoMessage<Message>>, stream: StreamToken) {
|
||||
match stream {
|
||||
FIRST_CONNECTION ... LAST_CONNECTION => self.connection_writable(stream, io),
|
||||
_ => panic!("Received unknown writable token"),
|
||||
}
|
||||
}
|
||||
|
||||
fn timeout<'s>(&'s mut self, io: &mut IoContext<'s, NetworkIoMessage<Message>>, token: TimerToken) {
|
||||
match token {
|
||||
IDLE => self.maintain_network(io),
|
||||
FIRST_CONNECTION ... LAST_CONNECTION => self.connection_timeout(token, io),
|
||||
NODETABLE_DISCOVERY => {},
|
||||
NODETABLE_MAINTAIN => {},
|
||||
USER_TIMER ... LAST_USER_TIMER => {
|
||||
let (protocol, delay) = {
|
||||
let timer = self.timers.get_mut(token).expect("Unknown user timer token");
|
||||
(timer.protocol, timer.delay)
|
||||
};
|
||||
_ => {
|
||||
let protocol = *self.timers.get_mut(&token).expect("Unknown user timer token");
|
||||
match self.handlers.get_mut(protocol) {
|
||||
None => { warn!(target: "net", "No handler found for protocol: {:?}", protocol) },
|
||||
Some(h) => {
|
||||
h.timeout(&mut HostIo::new(protocol, None, event_loop, &mut self.connections, &mut self.timers), token.as_usize());
|
||||
event_loop.timeout_ms(token, delay).expect("Error re-registering user timer");
|
||||
h.timeout(&mut NetworkContext::new(io, protocol, Some(token), &mut self.connections, &mut self.timers), token);
|
||||
}
|
||||
}
|
||||
}
|
||||
_ => panic!("Unknown timer token"),
|
||||
}
|
||||
}
|
||||
|
||||
fn notify(&mut self, event_loop: &mut EventLoop<Self>, msg: Self::Message) {
|
||||
match msg {
|
||||
HostMessage::Shutdown => event_loop.shutdown(),
|
||||
HostMessage::AddHandler {
|
||||
handler,
|
||||
protocol,
|
||||
versions
|
||||
fn message<'s>(&'s mut self, io: &mut IoContext<'s, NetworkIoMessage<Message>>, message: &'s mut NetworkIoMessage<Message>) {
|
||||
match message {
|
||||
&mut NetworkIoMessage::AddHandler {
|
||||
ref mut handler,
|
||||
ref protocol,
|
||||
ref versions
|
||||
} => {
|
||||
self.handlers.insert(protocol, handler);
|
||||
let mut h = mem::replace(handler, None).unwrap();
|
||||
h.initialize(&mut NetworkContext::new(io, protocol, None, &mut self.connections, &mut self.timers));
|
||||
self.handlers.insert(protocol, h);
|
||||
for v in versions {
|
||||
self.info.capabilities.push(CapabilityInfo { protocol: protocol, version: v, packet_count:0 });
|
||||
self.info.capabilities.push(CapabilityInfo { protocol: protocol, version: *v, packet_count:0 });
|
||||
}
|
||||
},
|
||||
HostMessage::Send {
|
||||
peer,
|
||||
packet_id,
|
||||
protocol,
|
||||
data,
|
||||
&mut NetworkIoMessage::Send {
|
||||
ref peer,
|
||||
ref packet_id,
|
||||
ref protocol,
|
||||
ref data,
|
||||
} => {
|
||||
match self.connections.get_mut(Token(peer as usize)) {
|
||||
match self.connections.get_mut(*peer as usize) {
|
||||
Some(&mut ConnectionEntry::Session(ref mut s)) => {
|
||||
s.send_packet(protocol, packet_id as u8, &data).unwrap_or_else(|e| {
|
||||
s.send_packet(protocol, *packet_id as u8, &data).unwrap_or_else(|e| {
|
||||
warn!(target: "net", "Send error: {:?}", e);
|
||||
}); //TODO: don't copy vector data
|
||||
},
|
||||
@ -723,11 +643,9 @@ impl Handler for Host {
|
||||
}
|
||||
}
|
||||
},
|
||||
HostMessage::UserMessage(message) => {
|
||||
&mut NetworkIoMessage::User(ref message) => {
|
||||
for (p, h) in self.handlers.iter_mut() {
|
||||
if p != &message.protocol {
|
||||
h.message(&mut HostIo::new(message.protocol, None, event_loop, &mut self.connections, &mut self.timers), &message);
|
||||
}
|
||||
h.message(&mut NetworkContext::new(io, p, None, &mut self.connections, &mut self.timers), &message);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -4,38 +4,42 @@
|
||||
///
|
||||
/// ```rust
|
||||
/// extern crate ethcore_util as util;
|
||||
/// use util::network::*;
|
||||
/// use util::*;
|
||||
///
|
||||
/// struct MyHandler;
|
||||
///
|
||||
/// impl ProtocolHandler for MyHandler {
|
||||
/// fn initialize(&mut self, io: &mut HandlerIo) {
|
||||
/// struct MyMessage {
|
||||
/// data: u32
|
||||
/// }
|
||||
///
|
||||
/// impl NetworkProtocolHandler<MyMessage> for MyHandler {
|
||||
/// fn initialize(&mut self, io: &mut NetworkContext<MyMessage>) {
|
||||
/// io.register_timer(1000);
|
||||
/// }
|
||||
///
|
||||
/// fn read(&mut self, io: &mut HandlerIo, peer: &PeerId, packet_id: u8, data: &[u8]) {
|
||||
/// fn read(&mut self, io: &mut NetworkContext<MyMessage>, peer: &PeerId, packet_id: u8, data: &[u8]) {
|
||||
/// println!("Received {} ({} bytes) from {}", packet_id, data.len(), peer);
|
||||
/// }
|
||||
///
|
||||
/// fn connected(&mut self, io: &mut HandlerIo, peer: &PeerId) {
|
||||
/// fn connected(&mut self, io: &mut NetworkContext<MyMessage>, peer: &PeerId) {
|
||||
/// println!("Connected {}", peer);
|
||||
/// }
|
||||
///
|
||||
/// fn disconnected(&mut self, io: &mut HandlerIo, peer: &PeerId) {
|
||||
/// fn disconnected(&mut self, io: &mut NetworkContext<MyMessage>, peer: &PeerId) {
|
||||
/// println!("Disconnected {}", peer);
|
||||
/// }
|
||||
///
|
||||
/// fn timeout(&mut self, io: &mut HandlerIo, timer: TimerToken) {
|
||||
/// fn timeout(&mut self, io: &mut NetworkContext<MyMessage>, timer: TimerToken) {
|
||||
/// println!("Timeout {}", timer);
|
||||
/// }
|
||||
///
|
||||
/// fn message(&mut self, io: &mut HandlerIo, message: &Message) {
|
||||
/// println!("Message {}:{}", message.protocol, message.id);
|
||||
/// fn message(&mut self, io: &mut NetworkContext<MyMessage>, message: &MyMessage) {
|
||||
/// println!("Message {}", message.data);
|
||||
/// }
|
||||
/// }
|
||||
///
|
||||
/// fn main () {
|
||||
/// let mut service = NetworkService::start().expect("Error creating network service");
|
||||
/// let mut service = NetworkService::<MyMessage>::start().expect("Error creating network service");
|
||||
/// service.register_protocol(Box::new(MyHandler), "myproto", &[1u8]);
|
||||
///
|
||||
/// // Wait for quit condition
|
||||
@ -43,76 +47,40 @@
|
||||
/// // Drop the service
|
||||
/// }
|
||||
/// ```
|
||||
extern crate mio;
|
||||
mod host;
|
||||
mod connection;
|
||||
mod handshake;
|
||||
mod session;
|
||||
mod discovery;
|
||||
mod service;
|
||||
|
||||
#[derive(Debug, Copy, Clone)]
|
||||
pub enum DisconnectReason
|
||||
{
|
||||
DisconnectRequested,
|
||||
TCPError,
|
||||
BadProtocol,
|
||||
UselessPeer,
|
||||
TooManyPeers,
|
||||
DuplicatePeer,
|
||||
IncompatibleProtocol,
|
||||
NullIdentity,
|
||||
ClientQuit,
|
||||
UnexpectedIdentity,
|
||||
LocalIdentity,
|
||||
PingTimeout,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub enum NetworkError {
|
||||
Auth,
|
||||
BadProtocol,
|
||||
PeerNotFound,
|
||||
Disconnect(DisconnectReason),
|
||||
Mio(::std::io::Error),
|
||||
}
|
||||
|
||||
impl From<::rlp::DecoderError> for NetworkError {
|
||||
fn from(_err: ::rlp::DecoderError) -> NetworkError {
|
||||
NetworkError::Auth
|
||||
}
|
||||
}
|
||||
|
||||
impl From<::mio::NotifyError<host::HostMessage>> for NetworkError {
|
||||
fn from(_err: ::mio::NotifyError<host::HostMessage>) -> NetworkError {
|
||||
NetworkError::Mio(::std::io::Error::new(::std::io::ErrorKind::ConnectionAborted, "Network IO notification error"))
|
||||
}
|
||||
}
|
||||
mod error;
|
||||
mod node;
|
||||
|
||||
pub type PeerId = host::PeerId;
|
||||
pub type PacketId = host::PacketId;
|
||||
pub type TimerToken = host::TimerToken;
|
||||
pub type HandlerIo<'s> = host::HostIo<'s>;
|
||||
pub type Message = host::UserMessage;
|
||||
pub type MessageId = host::UserMessageId;
|
||||
pub type NetworkContext<'s,'io, Message> = host::NetworkContext<'s, 'io, Message>;
|
||||
pub type NetworkService<Message> = service::NetworkService<Message>;
|
||||
pub type NetworkIoMessage<Message> = host::NetworkIoMessage<Message>;
|
||||
pub use network::host::NetworkIoMessage::User as UserMessage;
|
||||
pub type NetworkError = error::NetworkError;
|
||||
|
||||
use io::*;
|
||||
|
||||
/// Network IO protocol handler. This needs to be implemented for each new subprotocol.
|
||||
/// TODO: Separate p2p networking IO from IPC IO. `timeout` and `message` should go to a more genera IO provider.
|
||||
/// All the handler function are called from within IO event loop.
|
||||
pub trait ProtocolHandler: Send {
|
||||
/// Initialize the hadler
|
||||
fn initialize(&mut self, io: &mut HandlerIo);
|
||||
/// `Message` is the type for message data.
|
||||
pub trait NetworkProtocolHandler<Message>: Send where Message: Send {
|
||||
/// Initialize the handler
|
||||
fn initialize(&mut self, _io: &mut NetworkContext<Message>) {}
|
||||
/// Called when new network packet received.
|
||||
fn read(&mut self, io: &mut HandlerIo, peer: &PeerId, packet_id: u8, data: &[u8]);
|
||||
fn read(&mut self, io: &mut NetworkContext<Message>, peer: &PeerId, packet_id: u8, data: &[u8]);
|
||||
/// Called when new peer is connected. Only called when peer supports the same protocol.
|
||||
fn connected(&mut self, io: &mut HandlerIo, peer: &PeerId);
|
||||
fn connected(&mut self, io: &mut NetworkContext<Message>, peer: &PeerId);
|
||||
/// Called when a previously connected peer disconnects.
|
||||
fn disconnected(&mut self, io: &mut HandlerIo, peer: &PeerId);
|
||||
/// Timer function called after a timeout created with `HandlerIo::timeout`.
|
||||
fn timeout(&mut self, io: &mut HandlerIo, timer: TimerToken);
|
||||
/// Called when a broadcasted message is received. The message can only be sent from a different protocol handler.
|
||||
fn message(&mut self, io: &mut HandlerIo, message: &Message);
|
||||
fn disconnected(&mut self, io: &mut NetworkContext<Message>, peer: &PeerId);
|
||||
/// Timer function called after a timeout created with `NetworkContext::timeout`.
|
||||
fn timeout(&mut self, _io: &mut NetworkContext<Message>, _timer: TimerToken) {}
|
||||
/// Called when a broadcasted message is received. The message can only be sent from a different IO handler.
|
||||
fn message(&mut self, _io: &mut NetworkContext<Message>, _message: &Message) {}
|
||||
}
|
||||
|
||||
pub type NetworkService = service::NetworkService;
|
||||
|
||||
|
||||
@ -1,32 +1,32 @@
|
||||
use std::thread::{self, JoinHandle};
|
||||
use mio::*;
|
||||
use error::*;
|
||||
use network::{NetworkError, ProtocolHandler};
|
||||
use network::host::{Host, HostMessage, PeerId, PacketId, ProtocolId};
|
||||
use network::{NetworkProtocolHandler};
|
||||
use network::error::{NetworkError};
|
||||
use network::host::{Host, NetworkIoMessage, PeerId, PacketId, ProtocolId};
|
||||
use io::*;
|
||||
|
||||
/// IO Service with networking
|
||||
pub struct NetworkService {
|
||||
thread: Option<JoinHandle<()>>,
|
||||
host_channel: Sender<HostMessage>
|
||||
/// `Message` defines a notification data type.
|
||||
pub struct NetworkService<Message> where Message: Send + 'static {
|
||||
io_service: IoService<NetworkIoMessage<Message>>,
|
||||
host_info: String,
|
||||
}
|
||||
|
||||
impl NetworkService {
|
||||
impl<Message> NetworkService<Message> where Message: Send + 'static {
|
||||
/// Starts IO event loop
|
||||
pub fn start() -> Result<NetworkService, UtilError> {
|
||||
let mut event_loop = EventLoop::new().unwrap();
|
||||
let channel = event_loop.channel();
|
||||
let thread = thread::spawn(move || {
|
||||
Host::start(&mut event_loop).unwrap(); //TODO:
|
||||
});
|
||||
pub fn start() -> Result<NetworkService<Message>, UtilError> {
|
||||
let mut io_service = try!(IoService::<NetworkIoMessage<Message>>::start());
|
||||
let host = Box::new(Host::new());
|
||||
let host_info = host.info.client_version.clone();
|
||||
try!(io_service.register_handler(host));
|
||||
Ok(NetworkService {
|
||||
thread: Some(thread),
|
||||
host_channel: channel
|
||||
io_service: io_service,
|
||||
host_info: host_info,
|
||||
})
|
||||
}
|
||||
|
||||
/// Send a message over the network. Normaly `HostIo::send` should be used. This can be used from non-io threads.
|
||||
pub fn send(&mut self, peer: &PeerId, packet_id: PacketId, protocol: ProtocolId, data: &[u8]) -> Result<(), NetworkError> {
|
||||
try!(self.host_channel.send(HostMessage::Send {
|
||||
try!(self.io_service.send_message(NetworkIoMessage::Send {
|
||||
peer: *peer,
|
||||
packet_id: packet_id,
|
||||
protocol: protocol,
|
||||
@ -36,20 +36,25 @@ impl NetworkService {
|
||||
}
|
||||
|
||||
/// Regiter a new protocol handler with the event loop.
|
||||
pub fn register_protocol(&mut self, handler: Box<ProtocolHandler+Send>, protocol: ProtocolId, versions: &[u8]) -> Result<(), NetworkError> {
|
||||
try!(self.host_channel.send(HostMessage::AddHandler {
|
||||
handler: handler,
|
||||
pub fn register_protocol(&mut self, handler: Box<NetworkProtocolHandler<Message>+Send>, protocol: ProtocolId, versions: &[u8]) -> Result<(), NetworkError> {
|
||||
try!(self.io_service.send_message(NetworkIoMessage::AddHandler {
|
||||
handler: Some(handler),
|
||||
protocol: protocol,
|
||||
versions: versions.to_vec(),
|
||||
}));
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
impl Drop for NetworkService {
|
||||
fn drop(&mut self) {
|
||||
self.host_channel.send(HostMessage::Shutdown).unwrap();
|
||||
self.thread.take().unwrap().join().unwrap();
|
||||
/// Returns host identifier string as advertised to other peers
|
||||
pub fn host_info(&self) -> String {
|
||||
self.host_info.clone()
|
||||
}
|
||||
|
||||
/// Returns underlying io service.
|
||||
pub fn io(&mut self) -> &mut IoService<NetworkIoMessage<Message>> {
|
||||
&mut self.io_service
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
|
||||
|
||||
@ -4,8 +4,9 @@ use rlp::*;
|
||||
use network::connection::{EncryptedConnection, Packet};
|
||||
use network::handshake::Handshake;
|
||||
use error::*;
|
||||
use network::{NetworkError, DisconnectReason};
|
||||
use network::error::{NetworkError, DisconnectReason};
|
||||
use network::host::*;
|
||||
use network::node::NodeId;
|
||||
|
||||
/// Peer session over encrypted connection.
|
||||
/// When created waits for Hello packet exchange and signals ready state.
|
||||
@ -83,7 +84,7 @@ const PACKET_LAST: u8 = 0x7f;
|
||||
|
||||
impl Session {
|
||||
/// Create a new session out of comepleted handshake. Consumes handshake object.
|
||||
pub fn new(h: Handshake, event_loop: &mut EventLoop<Host>, host: &HostInfo) -> Result<Session, UtilError> {
|
||||
pub fn new<Host:Handler<Timeout=Token>>(h: Handshake, event_loop: &mut EventLoop<Host>, host: &HostInfo) -> Result<Session, UtilError> {
|
||||
let id = h.id.clone();
|
||||
let connection = try!(EncryptedConnection::new(h));
|
||||
let mut session = Session {
|
||||
@ -108,7 +109,7 @@ impl Session {
|
||||
}
|
||||
|
||||
/// Readable IO handler. Returns packet data if available.
|
||||
pub fn readable(&mut self, event_loop: &mut EventLoop<Host>, host: &HostInfo) -> Result<SessionData, UtilError> {
|
||||
pub fn readable<Host:Handler>(&mut self, event_loop: &mut EventLoop<Host>, host: &HostInfo) -> Result<SessionData, UtilError> {
|
||||
match try!(self.connection.readable(event_loop)) {
|
||||
Some(data) => Ok(try!(self.read_packet(data, host))),
|
||||
None => Ok(SessionData::None)
|
||||
@ -116,7 +117,7 @@ impl Session {
|
||||
}
|
||||
|
||||
/// Writable IO handler. Sends pending packets.
|
||||
pub fn writable(&mut self, event_loop: &mut EventLoop<Host>, _host: &HostInfo) -> Result<(), UtilError> {
|
||||
pub fn writable<Host:Handler>(&mut self, event_loop: &mut EventLoop<Host>, _host: &HostInfo) -> Result<(), UtilError> {
|
||||
self.connection.writable(event_loop)
|
||||
}
|
||||
|
||||
@ -126,7 +127,7 @@ impl Session {
|
||||
}
|
||||
|
||||
/// Update registration with the event loop. Should be called at the end of the IO handler.
|
||||
pub fn reregister(&mut self, event_loop: &mut EventLoop<Host>) -> Result<(), UtilError> {
|
||||
pub fn reregister<Host:Handler>(&mut self, event_loop: &mut EventLoop<Host>) -> Result<(), UtilError> {
|
||||
self.connection.reregister(event_loop)
|
||||
}
|
||||
|
||||
@ -241,6 +242,7 @@ impl Session {
|
||||
i += 1;
|
||||
}
|
||||
trace!(target: "net", "Hello: {} v{} {} {:?}", client_version, protocol, id, caps);
|
||||
self.info.client_version = client_version;
|
||||
self.info.capabilities = caps;
|
||||
if protocol != host.protocol_version {
|
||||
return Err(From::from(self.disconnect(DisconnectReason::UselessPeer)));
|
||||
|
||||
Loading…
Reference in New Issue
Block a user