Merge branch 'solutions' into 'master'

I might have finished the ring_buffer_stop() function. I am not sure yet what it should do.

See merge request !3

src/ring_buffer.c

@@ -127,8 +127,17 @@ void ring_buffer_destroy(so_ring_buffer_t *ring)
 	}
 }
 
+/*
+ * @brief Stops a thread
+ *
+ * Makes a thread drop its current execution early.
+ *
+ * Function is ideal for when the ring buffer is terminated
+ * but there still are threads runing something, i guess
+ */
 void ring_buffer_stop(so_ring_buffer_t *ring)
 {
 	/* TODO: Implement ring_buffer_stop */
+	pthread_exit("Thread stopped");
 	(void) ring;
 }