add conf item to toggle startup netburst (for developers).

Signed-off-by: Jason Volk <jason@zemos.net>

src/config/mod.rs

@@ -226,6 +226,9 @@ pub struct Config {
 	#[serde(with = "serde_regex")]
 	pub forbidden_usernames: RegexSet,
 
+	#[serde(default = "default_startup_netburst")]
+	pub startup_netburst: bool,
+
 	#[serde(default)]
 	pub block_non_admin_invites: bool,
 
@@ -518,6 +521,7 @@ impl fmt::Display for Config {
 				"Allow check for updates / announcements check",
 				&self.allow_check_for_updates.to_string(),
 			),
+			("Enable netburst on startup", &self.startup_netburst.to_string()),
 		];
 
 		let mut msg: String = "Active config values:\n\n".to_owned();
@@ -675,3 +679,5 @@ fn default_url_preview_max_spider_size() -> usize {
 }
 
 fn default_new_user_displayname_suffix() -> String { "🏳️‍⚧️".to_owned() }
+
+fn default_startup_netburst() -> bool { true }

src/service/sending/mod.rs

@@ -90,6 +90,7 @@ pub struct Service {
 	pub(super) maximum_requests: Arc<Semaphore>,
 	pub sender: mpsc::UnboundedSender<(OutgoingKind, SendingEventType, Vec<u8>)>,
 	receiver: Mutex<mpsc::UnboundedReceiver<(OutgoingKind, SendingEventType, Vec<u8>)>>,
+	startup_netburst: bool,
 }
 
 enum TransactionStatus {
@@ -106,6 +107,7 @@ impl Service {
 			sender,
 			receiver: Mutex::new(receiver),
 			maximum_requests: Arc::new(Semaphore::new(config.max_concurrent_requests as usize)),
+			startup_netburst: config.startup_netburst,
 		})
 	}
 
@@ -123,12 +125,11 @@ impl Service {
 		let mut receiver = self.receiver.lock().await;
 
 		let mut futures = FuturesUnordered::new();
-
 		let mut current_transaction_status = HashMap::<OutgoingKind, TransactionStatus>::new();
 
 		// Retry requests we could not finish yet
+		if self.startup_netburst {
 			let mut initial_transactions = HashMap::<OutgoingKind, Vec<SendingEventType>>::new();
-
 			for (key, outgoing_kind, event) in self.db.active_requests().filter_map(Result::ok) {
 				let entry = initial_transactions
 					.entry(outgoing_kind.clone())
@@ -147,6 +148,7 @@ impl Service {
 				current_transaction_status.insert(outgoing_kind.clone(), TransactionStatus::Running);
 				futures.push(Self::handle_events(outgoing_kind.clone(), events));
 			}
+		}
 
 		loop {
 			select! {