26 virtual double now() = 0;
A mini-server for performing network communication in the background.
virtual void delay(double seconds)=0
Wait for a certain number of seconds.
virtual bool isValid() const =0
Check if time is valid (non-zero).
virtual ~Clock()
Destructor.
virtual double now()=0
Return the current time in seconds, relative to an arbitrary starting point.
An interface to the operating system, including Port based communication.