From d2ba791be1d545cf023634cacc30faf371b4258e Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Fri, 19 Jul 2024 21:14:38 +0300
Subject: [PATCH] Support subscribing to util::signal without the need to keep
 the subscription token

---
 libs/util/include/psemek/util/signal.hpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libs/util/include/psemek/util/signal.hpp b/libs/util/include/psemek/util/signal.hpp
index 73893fc0..b1858b5a 100644
--- a/libs/util/include/psemek/util/signal.hpp
+++ b/libs/util/include/psemek/util/signal.hpp
@@ -22,6 +22,11 @@ namespace psemek::util
 			return token;
 		}
 
+		void subscribe_forever(subscriber callback) const
+		{
+			tokens_.push_back(subscribe(std::move(callback)));
+		}
+
 		void operator()(Args const & ... args)
 		{
 			auto subscribers = std::move(subscribers_);
@@ -52,6 +57,7 @@ namespace psemek::util
 
 	private:
 		mutable std::vector<std::weak_ptr<subscriber>> subscribers_;
+		mutable std::vector<subscription_token> tokens_;
 	};
 
 }