Fixed context lifetimes
This commit is contained in:
parent
c98f73c5c9
commit
28c482691a
@ -3,47 +3,38 @@
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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 as util;
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/// use util::network::*;
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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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/// impl ProtocolHandler for MyHandler {
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/// fn initialize(&mut self, io: &mut HandlerIo) {
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/// io.register_timer(1000);
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/// struct MyMessage {
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/// data: u32
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/// }
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///
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/// fn read(&mut self, io: &mut HandlerIo, peer: &PeerId, packet_id: u8, data: &[u8]) {
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/// println!("Received {} ({} bytes) from {}", packet_id, data.len(), peer);
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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 connected(&mut self, io: &mut HandlerIo, peer: &PeerId) {
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/// println!("Connected {}", peer);
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/// }
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///
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/// fn disconnected(&mut self, io: &mut HandlerIo, peer: &PeerId) {
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/// println!("Disconnected {}", peer);
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/// }
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///
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/// fn timeout(&mut self, io: &mut HandlerIo, timer: TimerToken) {
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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 HandlerIo, message: &Message) {
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/// println!("Message {}:{}", message.protocol, message.id);
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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 = NetworkService::start().expect("Error creating network service");
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/// service.register_protocol(Box::new(MyHandler), "myproto", &[1u8]);
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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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extern crate mio;
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mod service;
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#[derive(Debug)]
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@ -51,8 +42,8 @@ pub enum IoError {
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Mio(::std::io::Error),
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}
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impl<M> From<::mio::NotifyError<service::IoMessage<M>>> for IoError where M: Send {
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fn from(_err: ::mio::NotifyError<service::IoMessage<M>>) -> IoError {
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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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@ -62,17 +53,17 @@ impl<M> From<::mio::NotifyError<service::IoMessage<M>>> for IoError where M: Sen
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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(&mut self, _io: IoContext<Message>) {}
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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(&mut self, _io: IoContext<Message>, _timer: TimerToken) {}
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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(&mut self, _io: IoContext<Message>, _message: &mut Message) {} // TODO: make message immutable and provide internal channel for adding network 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(&mut self, _io: IoContext<Message>, _stream: StreamToken) {}
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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(&mut self, _io: IoContext<Message>, _stream: StreamToken) {}
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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(&mut self, _io: IoContext<Message>, _stream: StreamToken) {}
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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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@ -83,3 +74,35 @@ pub const USER_TOKEN_START: usize = service::USER_TOKEN;
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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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@ -16,26 +16,26 @@ const LAST_USER_TIMER: usize = USER_TIMER + MAX_USER_TIMERS - 1;
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pub 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<M> where M: Send + Sized {
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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<M>+Send>,
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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(M)
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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, M> where M: Send + 'static {
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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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pub event_loop: &'s mut EventLoop<IoManager<M>>,
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pub event_loop: &'s mut EventLoop<IoManager<Message>>,
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}
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impl<'s, M> IoContext<'s, M> where M: Send + 'static {
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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<M>>, timers: &'s mut Slab<UserTimer>) -> IoContext<'s, M> {
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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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@ -56,7 +56,7 @@ impl<'s, M> IoContext<'s, M> where M: Send + 'static {
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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: M) {
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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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@ -69,14 +69,14 @@ struct UserTimer {
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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<M> where M: Send {
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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<M>>>,
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handlers: Vec<Box<IoHandler<Message>>>,
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}
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impl<M> IoManager<M> where M: Send + 'static {
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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<M>>) -> Result<(), UtilError> {
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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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@ -86,24 +86,24 @@ impl<M> IoManager<M> where M: Send + 'static {
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}
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}
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impl<M> Handler for IoManager<M> where M: Send + 'static {
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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<M>;
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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(IoContext::new(event_loop, &mut self.timers), token.as_usize());
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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(IoContext::new(event_loop, &mut self.timers), token.as_usize());
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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(IoContext::new(event_loop, &mut self.timers), token.as_usize());
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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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@ -116,13 +116,13 @@ impl<M> Handler for IoManager<M> where M: Send + 'static {
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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(IoContext::new(event_loop, &mut self.timers), token.as_usize());
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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(IoContext::new(event_loop, &mut self.timers), token.as_usize());
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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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@ -139,7 +139,7 @@ impl<M> Handler for IoManager<M> where M: Send + 'static {
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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(IoContext::new(event_loop, &mut self.timers), data);
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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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@ -147,19 +147,19 @@ impl<M> Handler for IoManager<M> where M: Send + 'static {
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}
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/// General IO Service. Starts an event loop and dispatches IO requests.
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/// 'M' is a notification message type
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pub struct IoService<M> where M: Send + 'static {
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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<M>>
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host_channel: Sender<IoMessage<Message>>
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}
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impl<M> IoService<M> where M: Send + 'static {
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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<M>, UtilError> {
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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::<M>::start(&mut event_loop).unwrap(); //TODO:
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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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@ -168,7 +168,7 @@ impl<M> IoService<M> where M: Send + 'static {
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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<M>+Send>) -> Result<(), IoError> {
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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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@ -176,13 +176,13 @@ impl<M> IoService<M> where M: Send + 'static {
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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: M) -> Result<(), IoError> {
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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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}
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impl<M> Drop for IoService<M> where M: Send {
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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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@ -89,3 +89,4 @@ 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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@ -1,5 +1,5 @@
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use std::mem;
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use std::net::{SocketAddr };
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use std::net::{SocketAddr};
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use std::collections::{HashMap};
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use std::hash::{Hasher};
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use std::str::{FromStr};
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@ -103,20 +103,20 @@ impl Encodable for CapabilityInfo {
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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 NetworkContext<'s, Message> where Message: Send + 'static {
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io: IoContext<'s, NetworkIoMessage<Message>>,
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protocol: Option<ProtocolId>,
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pub struct NetworkContext<'s, 'io, Message> where Message: Send + 'static, 'io: 's {
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io: &'s mut IoContext<'io, NetworkIoMessage<Message>>,
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protocol: ProtocolId,
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connections: &'s mut Slab<ConnectionEntry>,
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timers: &'s mut HashMap<TimerToken, ProtocolId>,
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session: Option<StreamToken>,
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}
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impl<'s, Message> NetworkContext<'s, Message> where Message: Send + 'static, {
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impl<'s, 'io, Message> NetworkContext<'s, 'io, Message> where Message: Send + 'static, {
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/// Create a new network IO access point. Takes references to all the data that can be updated within the IO handler.
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fn new(io: IoContext<'s, NetworkIoMessage<Message>>,
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protocol: Option<ProtocolId>,
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fn new(io: &'s mut IoContext<'io, NetworkIoMessage<Message>>,
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protocol: ProtocolId,
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session: Option<StreamToken>, connections: &'s mut Slab<ConnectionEntry>,
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timers: &'s mut HashMap<TimerToken, ProtocolId>) -> NetworkContext<'s, Message> {
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timers: &'s mut HashMap<TimerToken, ProtocolId>) -> NetworkContext<'s, 'io, Message> {
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NetworkContext {
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io: io,
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protocol: protocol,
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@ -126,15 +126,11 @@ impl<'s, Message> NetworkContext<'s, Message> where Message: Send + 'static, {
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}
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}
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fn set_protocol(&mut self, protocol: ProtocolId) {
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self.protocol = Some(protocol);
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}
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/// Send a packet over the network to another peer.
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pub fn send(&mut self, peer: PeerId, packet_id: PacketId, data: Vec<u8>) -> Result<(), UtilError> {
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match self.connections.get_mut(Token(peer)) {
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Some(&mut ConnectionEntry::Session(ref mut s)) => {
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s.send_packet(self.protocol.unwrap(), packet_id as u8, &data).unwrap_or_else(|e| {
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s.send_packet(self.protocol, packet_id as u8, &data).unwrap_or_else(|e| {
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warn!(target: "net", "Send error: {:?}", e);
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}); //TODO: don't copy vector data
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},
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@ -164,7 +160,7 @@ impl<'s, Message> NetworkContext<'s, Message> where Message: Send + 'static, {
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pub fn register_timer(&mut self, ms: u64) -> Result<TimerToken, UtilError>{
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match self.io.register_timer(ms) {
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Ok(token) => {
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self.timers.insert(token, self.protocol.unwrap());
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self.timers.insert(token, self.protocol);
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Ok(token)
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},
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e @ Err(_) => e,
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@ -259,7 +255,7 @@ impl<Message> Host<Message> where Message: Send {
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}
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}
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fn maintain_network(&mut self, io: IoContext<NetworkIoMessage<Message>>) {
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fn maintain_network(&mut self, io: &mut IoContext<NetworkIoMessage<Message>>) {
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self.connect_peers(io);
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}
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@ -271,7 +267,7 @@ impl<Message> Host<Message> where Message: Send {
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self.connections.iter().any(|e| match e { &ConnectionEntry::Handshake(ref h) => h.id.eq(&id), _ => false })
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}
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fn connect_peers(&mut self, mut io: IoContext<NetworkIoMessage<Message>>) {
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fn connect_peers(&mut self, io: &mut IoContext<NetworkIoMessage<Message>>) {
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struct NodeInfo {
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id: NodeId,
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peer_type: PeerType
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@ -296,7 +292,7 @@ impl<Message> Host<Message> where Message: Send {
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for n in to_connect.iter() {
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if n.peer_type == PeerType::Required {
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if req_conn < IDEAL_PEERS {
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self.connect_peer(&n.id, &mut io);
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self.connect_peer(&n.id, io);
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}
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req_conn += 1;
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}
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@ -311,7 +307,7 @@ impl<Message> Host<Message> where Message: Send {
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for n in to_connect.iter() {
|
||||
if n.peer_type == PeerType::Optional && open_slots > 0 {
|
||||
open_slots -= 1;
|
||||
self.connect_peer(&n.id, &mut io);
|
||||
self.connect_peer(&n.id, io);
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -362,11 +358,11 @@ impl<Message> Host<Message> where Message: Send {
|
||||
}
|
||||
|
||||
|
||||
fn accept(&mut self, _io: IoContext<NetworkIoMessage<Message>>) {
|
||||
fn accept(&mut self, _io: &mut IoContext<NetworkIoMessage<Message>>) {
|
||||
trace!(target: "net", "accept");
|
||||
}
|
||||
|
||||
fn connection_writable<'s>(&'s mut self, token: StreamToken, io: IoContext<'s, NetworkIoMessage<Message>>) {
|
||||
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(token)) {
|
||||
@ -387,27 +383,25 @@ impl<Message> Host<Message> where Message: Send {
|
||||
warn!(target: "net", "Received event for unknown connection");
|
||||
}
|
||||
}
|
||||
let mut net_context = NetworkContext::new(io, None, Some(token), &mut self.connections, &mut self.timers);
|
||||
if kill {
|
||||
Host::kill_connection(token, &mut net_context, &mut self.handlers);
|
||||
self.kill_connection(token, io);
|
||||
return;
|
||||
} else if create_session {
|
||||
self.start_session(token, io);
|
||||
}
|
||||
if create_session {
|
||||
Host::start_session(&self.info, token, &mut net_context);
|
||||
}
|
||||
match net_context.connections.get_mut(Token(token)) {
|
||||
match self.connections.get_mut(Token(token)) {
|
||||
Some(&mut ConnectionEntry::Session(ref mut s)) => {
|
||||
s.reregister(net_context.io.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<'s>(&'s mut self, token: TimerToken, io: IoContext<'s, NetworkIoMessage<Message>>) {
|
||||
let mut net_context = NetworkContext::new(io, None, Some(token), &mut self.connections, &mut self.timers);
|
||||
Host::kill_connection(token, &mut net_context, &mut self.handlers);
|
||||
fn connection_closed<'s>(&'s mut self, token: TimerToken, io: &mut IoContext<'s, NetworkIoMessage<Message>>) {
|
||||
self.kill_connection(token, io);
|
||||
}
|
||||
|
||||
fn connection_readable<'s>(&'s mut self, token: StreamToken, io: IoContext<'s, NetworkIoMessage<Message>>) {
|
||||
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();
|
||||
@ -451,37 +445,35 @@ impl<Message> Host<Message> where Message: Send {
|
||||
warn!(target: "net", "Received event for unknown connection");
|
||||
}
|
||||
}
|
||||
let mut net_context = NetworkContext::new(io, None, Some(token), &mut self.connections, &mut self.timers);
|
||||
if kill {
|
||||
Host::kill_connection(token, &mut net_context, &mut self.handlers);
|
||||
self.kill_connection(token, io);
|
||||
return;
|
||||
}
|
||||
if create_session {
|
||||
Host::start_session(&self.info, token, &mut net_context);
|
||||
self.start_session(token, io);
|
||||
}
|
||||
for p in ready_data {
|
||||
let mut h = self.handlers.get_mut(p).unwrap();
|
||||
net_context.set_protocol(p);
|
||||
h.connected(&mut net_context, &token);
|
||||
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();
|
||||
net_context.set_protocol(p);
|
||||
h.read(&mut net_context, &token, 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 net_context.connections.get_mut(Token(token)) {
|
||||
match self.connections.get_mut(Token(token)) {
|
||||
Some(&mut ConnectionEntry::Session(ref mut s)) => {
|
||||
s.reregister(net_context.io.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(info: &HostInfo, token: StreamToken, io: &mut NetworkContext<Message>) {
|
||||
let event_loop = &mut io.io.event_loop;
|
||||
io.connections.replace_with(Token(token), |c| {
|
||||
fn start_session(&mut self, token: StreamToken, io: &mut IoContext<NetworkIoMessage<Message>>) {
|
||||
let info = &self.info;
|
||||
self.connections.replace_with(Token(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);
|
||||
@ -492,17 +484,16 @@ impl<Message> Host<Message> where Message: Send {
|
||||
}).expect("Error updating slab with session");
|
||||
}
|
||||
|
||||
fn connection_timeout<'s>(&'s mut self, token: StreamToken, io: IoContext<'s, NetworkIoMessage<Message>>) {
|
||||
let mut net_context = NetworkContext::new(io, None, Some(token), &mut self.connections, &mut self.timers);
|
||||
Host::kill_connection(token, &mut net_context, &mut self.handlers)
|
||||
fn connection_timeout<'s>(&'s mut self, token: StreamToken, io: &mut IoContext<'s, NetworkIoMessage<Message>>) {
|
||||
self.kill_connection(token, io)
|
||||
}
|
||||
|
||||
fn kill_connection(token: StreamToken, io: &mut NetworkContext<Message>, handlers: &mut HashMap<ProtocolId, Box<NetworkProtocolHandler<Message>>>) {
|
||||
fn kill_connection<'s>(&'s mut self, token: StreamToken, io: &mut IoContext<'s, NetworkIoMessage<Message>>) {
|
||||
let mut to_disconnect: Vec<ProtocolId> = Vec::new();
|
||||
match io.connections.get_mut(Token(token)) {
|
||||
match self.connections.get_mut(Token(token)) {
|
||||
Some(&mut ConnectionEntry::Handshake(_)) => (), // just abandon handshake
|
||||
Some(&mut ConnectionEntry::Session(ref mut s)) if s.is_ready() => {
|
||||
for (p, _) in handlers.iter_mut() {
|
||||
for (p, _) in self.handlers.iter_mut() {
|
||||
if s.have_capability(p) {
|
||||
to_disconnect.push(p);
|
||||
}
|
||||
@ -511,17 +502,16 @@ impl<Message> Host<Message> where Message: Send {
|
||||
_ => (),
|
||||
}
|
||||
for p in to_disconnect {
|
||||
let mut h = handlers.get_mut(p).unwrap();
|
||||
io.set_protocol(p);
|
||||
h.disconnected(io, &token);
|
||||
let mut h = self.handlers.get_mut(p).unwrap();
|
||||
h.disconnected(&mut NetworkContext::new(io, p, Some(token), &mut self.connections, &mut self.timers), &token);
|
||||
}
|
||||
io.connections.remove(Token(token));
|
||||
self.connections.remove(Token(token));
|
||||
}
|
||||
}
|
||||
|
||||
impl<Message> IoHandler<NetworkIoMessage<Message>> for Host<Message> where Message: Send + 'static {
|
||||
/// Initialize networking
|
||||
fn initialize(&mut self, io: IoContext<NetworkIoMessage<Message>>) {
|
||||
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(),
|
||||
@ -545,7 +535,7 @@ impl<Message> IoHandler<NetworkIoMessage<Message>> for Host<Message> where Messa
|
||||
self.add_node("enode://5374c1bff8df923d3706357eeb4983cd29a63be40a269aaa2296ee5f3b2119a8978c0ed68b8f6fc84aad0df18790417daadf91a4bfbb786a16c9b0a199fa254a@92.51.165.126:30303");
|
||||
}
|
||||
|
||||
fn stream_hup(&mut self, io: IoContext<NetworkIoMessage<Message>>, stream: StreamToken) {
|
||||
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),
|
||||
@ -553,7 +543,7 @@ impl<Message> IoHandler<NetworkIoMessage<Message>> for Host<Message> where Messa
|
||||
};
|
||||
}
|
||||
|
||||
fn stream_readable(&mut self, io: IoContext<NetworkIoMessage<Message>>, stream: StreamToken) {
|
||||
fn stream_readable<'s>(&'s mut self, io: &mut IoContext<'s, NetworkIoMessage<Message>>, stream: StreamToken) {
|
||||
match stream {
|
||||
TCP_ACCEPT => self.accept(io),
|
||||
FIRST_CONNECTION ... LAST_CONNECTION => self.connection_readable(stream, io),
|
||||
@ -562,39 +552,41 @@ impl<Message> IoHandler<NetworkIoMessage<Message>> for Host<Message> where Messa
|
||||
}
|
||||
}
|
||||
|
||||
fn stream_writable(&mut self, io: IoContext<NetworkIoMessage<Message>>, stream: StreamToken) {
|
||||
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(&mut self, io: IoContext<NetworkIoMessage<Message>>, token: TimerToken) {
|
||||
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 => {},
|
||||
_ => {
|
||||
let protocol: ProtocolId = self.timers.get_mut(&token).expect("Unknown user timer token");
|
||||
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 NetworkContext::new(io, Some(protocol), Some(token), &mut self.connections, &mut self.timers), token);
|
||||
h.timeout(&mut NetworkContext::new(io, protocol, Some(token), &mut self.connections, &mut self.timers), token);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn message(&mut self, io: IoContext<NetworkIoMessage<Message>>, message: &mut NetworkIoMessage<Message>) {
|
||||
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, mem::replace(handler, None).unwrap());
|
||||
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 });
|
||||
}
|
||||
@ -620,11 +612,9 @@ impl<Message> IoHandler<NetworkIoMessage<Message>> for Host<Message> where Messa
|
||||
ref protocol,
|
||||
ref message
|
||||
} => {
|
||||
let mut net_context = NetworkContext::new(io, None, None, &mut self.connections, &mut self.timers);
|
||||
for (p, h) in self.handlers.iter_mut() {
|
||||
if p != protocol {
|
||||
net_context.set_protocol(p);
|
||||
h.message(&mut net_context, &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 NetworkContext) {
|
||||
/// 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 NetworkContext, 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 NetworkContext, peer: &PeerId) {
|
||||
/// fn connected(&mut self, io: &mut NetworkContext<MyMessage>, peer: &PeerId) {
|
||||
/// println!("Connected {}", peer);
|
||||
/// }
|
||||
///
|
||||
/// fn disconnected(&mut self, io: &mut NetworkContext, peer: &PeerId) {
|
||||
/// fn disconnected(&mut self, io: &mut NetworkContext<MyMessage>, peer: &PeerId) {
|
||||
/// println!("Disconnected {}", peer);
|
||||
/// }
|
||||
///
|
||||
/// fn timeout(&mut self, io: &mut NetworkContext, timer: TimerToken) {
|
||||
/// fn timeout(&mut self, io: &mut NetworkContext<MyMessage>, timer: TimerToken) {
|
||||
/// println!("Timeout {}", timer);
|
||||
/// }
|
||||
///
|
||||
/// fn message(&mut self, io: &mut NetworkContext, 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
|
||||
@ -43,7 +47,6 @@
|
||||
/// // Drop the service
|
||||
/// }
|
||||
/// ```
|
||||
extern crate mio;
|
||||
mod host;
|
||||
mod connection;
|
||||
mod handshake;
|
||||
@ -55,7 +58,7 @@ mod node;
|
||||
|
||||
pub type PeerId = host::PeerId;
|
||||
pub type PacketId = host::PacketId;
|
||||
pub type NetworkContext<'s, Message> = host::NetworkContext<'s, Message>;
|
||||
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 type NetworkError = error::NetworkError;
|
||||
@ -66,6 +69,8 @@ use io::*;
|
||||
/// All the handler function are called from within IO event loop.
|
||||
/// `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 NetworkContext<Message>, peer: &PeerId, packet_id: u8, data: &[u8]);
|
||||
/// Called when new peer is connected. Only called when peer supports the same protocol.
|
||||
|
Loading…
Reference in New Issue
Block a user