apps: common: event_loop: Use single event source for deferred calls

Instead of calling `event_base_once()` every time a deferred call
is added to the loop, create an event source at construction, and
simply trigger that when a new deferred call is scheduled.

Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>

1 files changed, 1 insertions, 4 deletions

diff --git a/src/apps/common/event_loop.h b/src/apps/common/event_loop.h
index 76007588..53b2c37d 100644
--- a/src/apps/common/event_loop.h
+++ b/src/apps/common/event_loop.h
@@ -65,11 +65,8 @@ private:
 	int exitCode_;
 
 	std::deque<std::function<void()>> calls_;
+	struct event *callsTrigger_ = nullptr;
 
 	std::list<std::unique_ptr<Event>> events_;
 	std::mutex lock_;
-
-	static void dispatchCallback(evutil_socket_t fd, short flags,
-				     void *param);
-	void dispatchCall();
 };