fix: cleanly exit on shutdown (#5537)

Co-authored-by: Mm2PL <mm2pl+gh@kotmisia.pl>
Co-authored-by: Nerixyz <nerixdev@outlook.de>

src/providers/seventv/eventapi/Client.cpp

@@ -13,9 +13,16 @@ Client::Client(liveupdates::WebsocketClient &websocketClient,
     : BasicPubSubClient<Subscription>(websocketClient, std::move(handle))
     , lastHeartbeat_(std::chrono::steady_clock::now())
     , heartbeatInterval_(heartbeatInterval)
+    , heartbeatTimer_(std::make_shared<boost::asio::steady_timer>(
+          this->websocketClient_.get_io_service()))
 {
 }
 
+void Client::stopImpl()
+{
+    this->heartbeatTimer_->cancel();
+}
+
 void Client::onConnectionEstablished()
 {
     this->lastHeartbeat_.store(std::chrono::steady_clock::now(),
@@ -54,14 +61,13 @@ void Client::checkHeartbeat()
 
     auto self = std::dynamic_pointer_cast<Client>(this->shared_from_this());
 
-    runAfter(this->websocketClient_.get_io_service(), this->heartbeatInterval_,
-             [self](auto) {
-                 if (!self->isStarted())
-                 {
-                     return;
-                 }
-                 self->checkHeartbeat();
-             });
+    runAfter(this->heartbeatTimer_, this->heartbeatInterval_, [self](auto) {
+        if (!self->isStarted())
+        {
+            return;
+        }
+        self->checkHeartbeat();
+    });
 }
 
 }  // namespace chatterino::seventv::eventapi

src/providers/seventv/eventapi/Client.hpp

@@ -19,6 +19,8 @@ public:
            liveupdates::WebsocketHandle handle,
            std::chrono::milliseconds heartbeatInterval);
 
+    void stopImpl() override;
+
     void setHeartbeatInterval(int intervalMs);
     void handleHeartbeat();
 
@@ -32,6 +34,7 @@ private:
         lastHeartbeat_;
     // This will be set once on the welcome message.
     std::chrono::milliseconds heartbeatInterval_;
+    std::shared_ptr<boost::asio::steady_timer> heartbeatTimer_;
 
     friend SeventvEventAPI;
 };