stores telemetry definitions

examples/simple_producer/src/main.rs

@@ -3,11 +3,9 @@ use server::core::telemetry_service_client::TelemetryServiceClient;
 use server::core::telemetry_value::Value;
 use server::core::{TelemetryDataType, TelemetryDefinitionRequest, TelemetryItem, TelemetryValue, Timestamp, Uuid};
 use std::error::Error;
-use std::future::IntoFuture;
 use std::time::Duration;
 use tokio::sync::mpsc;
 use tokio::sync::mpsc::Sender;
-use tokio::task::JoinHandle;
 use tokio::time::Instant;
 use tokio_util::sync::CancellationToken;
 use tonic::codegen::tokio_stream::wrappers::ReceiverStream;
@@ -20,7 +18,6 @@ use num_traits::float::FloatConst;
 struct Telemetry {
     client: TelemetryServiceClient<Channel>,
     tx: Sender<TelemetryItem>,
-    handle: Option<JoinHandle<()>>,
     cancel: CancellationToken,
 }
 
@@ -36,12 +33,12 @@ impl Telemetry {
         D::Error: Into<StdError>,
     {
         let mut client = TelemetryServiceClient::connect(dst).await?;
-        let mut client_stored = client.clone();
+        let client_stored = client.clone();
         let cancel = CancellationToken::new();
         let cancel_stored = cancel.clone();
         let (local_tx, mut local_rx) = mpsc::channel(128);
 
-        let handle: JoinHandle<()> = tokio::spawn(async move {
+        tokio::spawn(async move {
             while !cancel.is_cancelled() {
                 let (server_tx, server_rx) = mpsc::channel(1);
                 let response_stream = client.insert_telemetry(ReceiverStream::new(server_rx)).await;
@@ -75,7 +72,6 @@ impl Telemetry {
         Ok(Self {
             client: client_stored,
             tx: local_tx,
-            handle: Some(handle),
             cancel: cancel_stored,
         })
     }