chore: Add course material

397/Ex71A/TimerSet.h

@@ -0,0 +1,33 @@
+#ifndef TIMERSET_H
+#define TIMERSET_H
+
+#include <ctime>
+#include <thread>
+#include <vector>
+
+class Timer;
+
+class TimerSet {
+  public:
+    void pollAllTimers();
+    void addATimer(Timer *);
+
+  private:
+    TimerSet();
+    std::vector<Timer *> timers;
+    std::time_t previousTime;
+
+    //  Exercise 5.1 Threading two new members
+    std::thread pollingThread;
+    void poll10Hz();
+
+    //  Meyer's Singleton
+  public:
+    static TimerSet &Instance();
+
+  private:
+    TimerSet(const TimerSet &);
+    TimerSet &operator=(const TimerSet &);
+};
+
+#endif