Add a MutexRef class to clean up Mutex handling code

src/modules/thread/threads.cpp

@@ -104,5 +104,20 @@ const char *Threadable::getThreadName() const
 	return threadName.empty() ? nullptr : threadName.c_str();
 }
 
+MutexRef::MutexRef()
+	: mutex(newMutex())
+{
+}
+
+MutexRef::~MutexRef()
+{
+	delete mutex;
+}
+
+MutexRef::operator Mutex*() const
+{
+	return mutex;
+}
+
 } // thread
 } // love

src/modules/thread/threads.h

@@ -96,6 +96,18 @@ protected:
 
 };
 
+class MutexRef
+{
+public:
+	MutexRef();
+	~MutexRef();
+
+	operator Mutex*() const;
+
+private:
+	Mutex *mutex;
+};
+
 Mutex *newMutex();
 Conditional *newConditional();
 Thread *newThread(Threadable *t);