DoTask: timed_mutex -> recursive_timed_mutex

do_task.cpp

@@ -8,7 +8,7 @@
 namespace fortuna {
 
 auto DoTask::die_pls() -> void {
-	do_sleep.unlock();
+	mtx_do_sleep.unlock();
 	th.join();
 }
 
@@ -19,9 +19,12 @@ auto DoTask::thread_pls(const std::chrono::seconds& interval,
 		die_pls();
 	}
 
-	do_sleep.lock();
+	// since this is a std::recursive_timed_mutex, an attempt is made to only
+	// try_lock() it
+	mtx_do_sleep.try_lock();
+
 	th = std::thread([this, interval, callback = std::move(callback)] {
-		while (!do_sleep.try_lock_for(interval)) {
+		while (!mtx_do_sleep.try_lock_for(interval)) {
 			callback();
 		}
 	});

do_task.h

@@ -10,7 +10,7 @@ namespace fortuna {
 
 class DoTask {
 private:
-	std::timed_mutex do_sleep;
+	std::recursive_timed_mutex mtx_do_sleep;
 	std::thread th;
 
 public: