some stuff is working tokio

Cargo.lock

@@ -1,5 +1,13 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
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+ "memchr 2.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
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@@ -71,6 +79,11 @@ dependencies = [
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 ]
 
+[[package]]
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 dependencies = [
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+ "env_logger 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "tokio 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -136,6 +155,18 @@ dependencies = [
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+ "termcolor 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -159,6 +190,102 @@ name = "foreign-types-shared"
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+ "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
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@@ -200,6 +327,14 @@ name = "httparse"
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+]
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@@ -231,6 +366,15 @@ name = "itoa"
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+ "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -254,6 +398,50 @@ name = "matches"
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+]
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@@ -271,6 +459,16 @@ dependencies = [
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 ]
 
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+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
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@@ -311,6 +509,34 @@ name = "percent-encoding"
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+[[package]]
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+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -321,6 +547,42 @@ name = "ppv-lite86"
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+[[package]]
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+ "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -363,6 +625,22 @@ name = "redox_syscall"
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@@ -430,6 +708,11 @@ dependencies = [
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+ "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
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@@ -453,6 +746,14 @@ dependencies = [
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@@ -461,6 +762,51 @@ dependencies = [
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+[[package]]
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+
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@@ -545,17 +901,40 @@ dependencies = [
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Cargo.toml

@@ -9,7 +9,16 @@ edition = "2018"
 [dependencies]
 
 clap = "2.33.0"
-tungstenite = "0.9.2"
 url = "2.1.1"
 serde_json = "1.0"
 rand = "0.7.3"
+tokio = { version = "0.2", default-features = false, features = ["io-std", "macros"] }
+futures = "0.3"
+pin-project = "0.4"
+tungstenite = "0.9.2"
+env_logger = "0.7"
+log = "*"
+
+[dependencies.tokio-tungstenite]
+
+git = "https://github.com/snapview/tokio-tungstenite"

src/main.rs

@@ -1,6 +1,7 @@
 extern crate clap;
 
 use clap::{App, Arg};
+use futures::{future, pin_mut, StreamExt};
 use rand::random;
 use serde_json::json;
 use std::i64;
@@ -9,7 +10,9 @@ use std::io::Write;
 use std::net;
 use std::thread::spawn;
 use std::time::Instant;
-use tungstenite::{connect, Error, Message};
+use tokio::io::{AsyncReadExt, AsyncWriteExt};
+use tokio_tungstenite::connect_async;
+use tungstenite::protocol::Message;
 use url::Url;
 
 fn listen(socket: &net::UdpSocket) {
@@ -81,7 +84,8 @@ fn write_file(text: String, filename: &str) {
   //println!("data written to file");
 }
 
-fn main() {
+#[tokio::main]
+async fn main() {
   let matches = App::new("chorusOBSsync")
     .version("1.0")
     .author("Lukas B. <lukas@lbsfilm.at>")
@@ -140,20 +144,33 @@ fn main() {
   // Setup websocket for OBS
   let mut now = Instant::now();
 
-  let (mut obssocket, _) =
-    connect(Url::parse("ws://localhost:4444/").unwrap()).expect("Could not connect to OBS");
   let source_id = "LAPTIME";
 
-  spawn(move || loop {
+  let (ws_stream, _) = connect_async(Url::parse("ws://localhost:4444/").unwrap())
-    if let Ok(msg) = obssocket.read_message() {
+    .await
-      let text = msg.into_text().unwrap_or("".to_string());
+    .expect("Could not connect to OBS");
-      println!("{}", text);
+  println!("WebSocket handshake has been successfully completed");
+
+  let (write, read) = ws_stream.split();
+  let (obstx, obsrx) = futures::channel::mpsc::unbounded();
+
+  let ws_to_stdout = {
+    read.for_each(|message| {
+      async {
+        let data = message.unwrap().into_data();
+        tokio::io::stdout().write_all(&data).await.unwrap();
       }
-  });
+    })
+  };
+
+  let stdin_to_ws = obsrx.map(Ok).forward(write);
+  pin_mut!(stdin_to_ws, ws_to_stdout);
+  future::select(stdin_to_ws, ws_to_stdout).await;
 
   // Setup the UDP Socket
   let udpsocket = net::UdpSocket::bind("0.0.0.0:0").expect("failed to bind host udp socket"); // local bind port
   udpsocket.set_nonblocking(true).unwrap();
+
   let msg = String::from("ok").into_bytes();
   udpsocket
     .send_to(&msg, "192.168.0.141:9000")
@@ -163,8 +180,8 @@ fn main() {
 
     if now.elapsed().as_secs() >= 5 {
       let request = json!({"request-type":"SetTextFreetype2Properties", "source":source_id,"message-id": random::<f64>().to_string(), "text": now.elapsed().as_millis().to_string() });
-      obssocket
+      obstx
-        .write_message(Message::Text(request.to_string()))
+        .unbounded_send(Message::Text(request.to_string()))
         .unwrap();
       println!("{}", now.elapsed().as_secs());
       now = Instant::now();

src/some connect.rs

@@ -0,0 +1,63 @@
+//! A simple example of hooking up stdin/stdout to a WebSocket stream.
+//!
+//! This example will connect to a server specified in the argument list and
+//! then forward all data read on stdin to the server, printing out all data
+//! received on stdout.
+//!
+//! Note that this is not currently optimized for performance, especially around
+//! buffer management. Rather it's intended to show an example of working with a
+//! client.
+//!
+//! You can use this example together with the `server` example.
+
+use std::env;
+
+use futures::{future, pin_mut, StreamExt};
+use tokio::io::{AsyncReadExt, AsyncWriteExt};
+use tokio_tungstenite::connect_async;
+use tungstenite::protocol::Message;
+
+#[tokio::main]
+async fn main() {
+  let connect_addr = env::args()
+    .nth(1)
+    .unwrap_or_else(|| panic!("this program requires at least one argument"));
+
+  let url = url::Url::parse(&connect_addr).unwrap();
+
+  let (stdin_tx, stdin_rx) = futures::channel::mpsc::unbounded();
+  tokio::spawn(read_stdin(stdin_tx));
+
+  let (ws_stream, _) = connect_async(url).await.expect("Failed to connect");
+  println!("WebSocket handshake has been successfully completed");
+
+  let (write, read) = ws_stream.split();
+
+  let stdin_to_ws = stdin_rx.map(Ok).forward(write);
+  let ws_to_stdout = {
+    read.for_each(|message| {
+      async {
+        let data = message.unwrap().into_data();
+        tokio::io::stdout().write_all(&data).await.unwrap();
+      }
+    })
+  };
+
+  pin_mut!(stdin_to_ws, ws_to_stdout);
+  future::select(stdin_to_ws, ws_to_stdout).await;
+}
+
+// Our helper method which will read data from stdin and send it along the
+// sender provided.
+async fn read_stdin(tx: futures::channel::mpsc::UnboundedSender<Message>) {
+  let mut stdin = tokio::io::stdin();
+  loop {
+    let mut buf = vec![0; 1024];
+    let n = match stdin.read(&mut buf).await {
+      Err(_) | Ok(0) => break,
+      Ok(n) => n,
+    };
+    buf.truncate(n);
+    tx.unbounded_send(Message::binary(buf)).unwrap();
+  }
+}