shared tokio runtime

src/commands.rs

@@ -1,11 +1,19 @@
-use std::{sync::Arc, thread};
-use log::{error, info};
-use tokio::{net::TcpListener, sync::{Mutex, oneshot}, task::JoinHandle, runtime::Runtime};
-use tokio_tungstenite::{accept_async, tungstenite::protocol::Message, WebSocketStream};
 use futures::{SinkExt, StreamExt};
-use tokio::net::TcpStream;
-use serde_json::json;
 use lazy_static::lazy_static;
+use log::{error, info};
+use once_cell::sync::Lazy;
+use serde_json::json;
+use std::{sync::Arc, thread};
+use tokio::net::TcpStream;
+use tokio::{
+    net::TcpListener,
+    runtime::Runtime,
+    sync::{oneshot, Mutex},
+    task::JoinHandle,
+};
+use tokio_tungstenite::{accept_async, tungstenite::protocol::Message, WebSocketStream};
+
+use crate::structs::LocationPayload;
 
 type WebSocket = WebSocketStream<TcpStream>;
 
@@ -27,21 +35,22 @@ impl ServerState {
 
 lazy_static! {
     static ref SERVER_STATE: Arc<Mutex<ServerState>> = Arc::new(Mutex::new(ServerState::new()));
+    static ref LOCATION_PAYLOAD: LocationPayload = LocationPayload {
+        latitude: 0.0,
+        longitude: 0.0,
+        altitude: 0.0,
+        bearing: 0.0,
+    };
 }
 
-fn create_tokio_runtime() -> Runtime {
+pub static RUNTIME: Lazy<Runtime> =
-    tokio::runtime::Builder::new_multi_thread()
+    Lazy::new(|| Runtime::new().expect("Failed to build the Tokio Runtime"));
-        .enable_all()
-        .build()
-        .expect("Failed to create Tokio runtime")
-}
 
 pub fn start() -> &'static str {
-    let rt = create_tokio_runtime();
     let server_state = SERVER_STATE.clone();
 
     thread::spawn(move || {
-        rt.block_on(async {
+        RUNTIME.block_on(async {
             let mut state = server_state.lock().await;
 
             if state.handle.is_some() {
@@ -54,8 +63,8 @@ pub fn start() -> &'static str {
 
             state.handle = Some(tokio::spawn(async move {
                 info!("Starting server...");
-                let listener = TcpListener::bind("192.168.15.8:8080").await.expect("Failed to bind");
+                let listener = TcpListener::bind("192.168.0.43:8080").await.expect("Failed to bind");
-                info!("WebSocket server running on ws://192.168.15.8:8080");
+                info!("WebSocket server running on ws://192.168.0.43:8080");
 
                 tokio::select! {
                     _ = async {
@@ -90,8 +99,7 @@ async fn handle_client(client: Arc<Mutex<WebSocket>>) {
 
 pub fn send_ping() -> &'static str {
     thread::spawn(move || {
-        let rt = create_tokio_runtime();
+        RUNTIME.block_on(async {
-        rt.block_on(async {
             send_to_all_clients(Message::Text("Ping".into())).await;
         });
     });
@@ -100,10 +108,10 @@ pub fn send_ping() -> &'static str {
 }
 
 pub fn send_location() -> &'static str {
+    let current_position = LOCATION_PAYLOAD.clone();
     thread::spawn(move || {
-        let rt = create_tokio_runtime();
+        RUNTIME.block_on(async {
-        rt.block_on(async {
+            let location_data = json!(current_position);
-            let location_data = json!({ "location": "42.3601, -71.0589" });
             send_to_all_clients(Message::Text(location_data.to_string())).await;
         });
     });
@@ -112,6 +120,7 @@ pub fn send_location() -> &'static str {
 }
 
 async fn send_to_all_clients(message: Message) {
+    info!("Sending message to all clients: {:?}", message);
     let state = SERVER_STATE.lock().await;
     for client in &state.clients {
         let mut client = client.lock().await;
@@ -125,8 +134,7 @@ pub fn stop() -> &'static str {
     let server_state = SERVER_STATE.clone();
 
     thread::spawn(move || {
-        let rt = create_tokio_runtime();
+        RUNTIME.block_on(async {
-        rt.block_on(async {
             let mut state = server_state.lock().await;
 
             if let Some(stop_tx) = state.stop_sender.take() {
@@ -142,4 +150,4 @@ pub fn stop() -> &'static str {
     });
 
     "Server stopping..."
-}
+}

src/lib.rs

@@ -11,7 +11,7 @@ pub fn init() -> Extension {
 
     let file_appender = FileAppender::builder()
         .append(true)
-        .encoder(Box::new(PatternEncoder::new("{d} {t} {l} - {m}{n}")))
+        .encoder(Box::new(PatternEncoder::new("{d} {t} - {m}{n}")))
         .build("armatak.log")
         .unwrap();