From 2f6b489ec20b5879d0ed66a7d08d341658ad8b7d Mon Sep 17 00:00:00 2001
From: Pavel Kartavyy <kartavyy@yandex-team.ru>
Date: Wed, 21 Sep 2016 16:30:27 +0300
Subject: [PATCH] daemon: add comments

---
 libs/libdaemon/include/daemon/BaseDaemon.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libs/libdaemon/include/daemon/BaseDaemon.h b/libs/libdaemon/include/daemon/BaseDaemon.h
index 8474bdff459..40f7f2bb473 100644
--- a/libs/libdaemon/include/daemon/BaseDaemon.h
+++ b/libs/libdaemon/include/daemon/BaseDaemon.h
@@ -91,6 +91,7 @@ public:
 		return dynamic_cast<BaseDaemon &>(Poco::Util::Application::instance());
 	}
 
+	/// return none if daemon doesn't exist, reference to the daemon otherwise
 	static boost::optional<BaseDaemon &> tryGetInstance() { return tryGetInstance<BaseDaemon>(); }
 
 	/// Спит заданное количество секунд или до события wakeup
@@ -211,6 +212,7 @@ boost::optional<Daemon &> BaseDaemon::tryGetInstance()
 	}
 	catch (const Poco::NullPointerException &)
 	{
+		/// if daemon doesn't exist than instance() throw NullPointerException
 	}
 
 	if (ptr)