feat: add message-io

__network/message_io/src/server.rs

@@ -0,0 +1,69 @@
+use super::common::{Message};
+
+use message_io::events::{EventQueue};
+use message_io::network::{Network, NetEvent, Endpoint, Transport};
+
+use std::collections::{HashMap};
+
+struct ClientInfo {
+    count: usize,
+}
+
+enum Event {
+    Network(NetEvent<Message>),
+}
+
+pub fn run() {
+    let mut event_queue = EventQueue::new();
+
+    let network_sender = event_queue.sender().clone();
+    let mut network = Network::new(move |net_event| {
+        network_sender.send(Event::Network(net_event))
+    });
+
+    let mut clients: HashMap<Endpoint, ClientInfo> = HashMap::new();
+
+    let listen_addr = "127.0.0.1:3000";
+    match network.listen(Transport::Tcp, listen_addr) {
+        Ok(_) => success!("TCP Server running at {}", listen_addr),
+        Err(_) => return failure!("Can not listening at {}", listen_addr),
+    }
+
+    loop {
+        match event_queue.receive() {
+            Event::Network(net_event) => match net_event {
+                NetEvent::Message(endpoint, message) => match message {
+                    Message::Greetings(text) => {
+                        let mut client_info = clients.get_mut(&endpoint).unwrap();
+                        client_info.count += 1;
+                        information!(
+                            "Client ({}) says '{}' {} times",
+                            endpoint.addr(),
+                            text,
+                            client_info.count
+                        );
+                        let msg = format!("Hi, I hear you for {} time", client_info.count);
+                        network.send(endpoint, Message::Greetings(msg));
+                    }
+                },
+                NetEvent::AddedEndpoint(endpoint) => {
+                    clients.insert(endpoint, ClientInfo { count: 0 });
+                    information!(
+                        "Client ({}) connected (total clients: {})",
+                        endpoint.addr(),
+                        clients.len()
+                    );
+                }
+                NetEvent::RemovedEndpoint(endpoint) => {
+                    clients.remove(&endpoint).unwrap();
+                    information!(
+                        "Client ({}) disconnected (total clients: {})",
+                        endpoint.addr(),
+                        clients.len()
+                    );
+                }
+                NetEvent::DeserializationError(_) => (),
+            },
+        }
+    }
+}