Add PubsubClient::vote_subscribe (#22114)

(cherry picked from commit 0a0fc85282)

Co-authored-by: Kirill Fomichev <fanatid@ya.ru>

client/src/pubsub_client.rs

@@ -7,7 +7,7 @@ use {
         },
         rpc_response::{
             Response as RpcResponse, RpcBlockUpdate, RpcKeyedAccount, RpcLogsResponse,
-            RpcSignatureResult, SlotInfo, SlotUpdate,
+            RpcSignatureResult, RpcVote, SlotInfo, SlotUpdate,
         },
     },
     log::*,
@@ -192,6 +192,9 @@ pub type AccountSubscription = (
     Receiver<RpcResponse<UiAccount>>,
 );
 
+pub type PubsubVoteClientSubscription = PubsubClientSubscription<RpcVote>;
+pub type VoteSubscription = (PubsubVoteClientSubscription, Receiver<RpcVote>);
+
 pub type PubsubRootClientSubscription = PubsubClientSubscription<Slot>;
 pub type RootSubscription = (PubsubRootClientSubscription, Receiver<Slot>);
 
@@ -392,6 +395,39 @@ impl PubsubClient {
         Ok((result, receiver))
     }
 
+    pub fn vote_subscribe(url: &str) -> Result<VoteSubscription, PubsubClientError> {
+        let url = Url::parse(url)?;
+        let socket = connect_with_retry(url)?;
+        let (sender, receiver) = channel();
+
+        let socket = Arc::new(RwLock::new(socket));
+        let socket_clone = socket.clone();
+        let exit = Arc::new(AtomicBool::new(false));
+        let exit_clone = exit.clone();
+        let body = json!({
+            "jsonrpc":"2.0",
+            "id":1,
+            "method":"voteSubscribe",
+        })
+        .to_string();
+        let subscription_id = PubsubVoteClientSubscription::send_subscribe(&socket_clone, body)?;
+
+        let t_cleanup = std::thread::spawn(move || {
+            Self::cleanup_with_sender(exit_clone, &socket_clone, sender)
+        });
+
+        let result = PubsubClientSubscription {
+            message_type: PhantomData,
+            operation: "vote",
+            socket,
+            subscription_id,
+            t_cleanup: Some(t_cleanup),
+            exit,
+        };
+
+        Ok((result, receiver))
+    }
+
     pub fn root_subscribe(url: &str) -> Result<RootSubscription, PubsubClientError> {
         let url = Url::parse(url)?;
         let socket = connect_with_retry(url)?;