C++ Simulation Timer For ATM

I want to run an ATM simulation. I am looking for code which will allow me to time-stamp cells (messages) at a source node and send these cells to a destination node. Ie: I'm looking for simple c++ code which will create a timer object and return time-stamps on invocation of some class method. The code should produce the same results on each run of the program.
CL050597Asked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

md041797Commented:
This uses the Win32 time system.  Any other system can be used in a similar way.

class TimeStamp {
public:
  TimeStamp () {StampIt();}
  void StampIt () {GetLocalTime (&TheStamp);}
  SYSTEMTIME &WhenStamped () {return TheStamp;}
private:
  SYSTEMTIME TheStamp;
  };

Good?
0
CL050597Author Commented:
If I were to use system time then my implimentation would be dependent on the CPU time of my computer. Ie: If my computer has 200 users vs 2 users then I will obtain different results each time I run my program. I want an implimentation which is  will give me the same results each time I run the program. This means that I have to come-up with a method which is independent of the system clock. Thanks for trying, but your solution is the obvious mistake, try again
0
CL050597Author Commented:
Edited text of question
0
Become a Microsoft Certified Solutions Expert

This course teaches how to install and configure Windows Server 2012 R2.  It is the first step on your path to becoming a Microsoft Certified Solutions Expert (MCSE).

md041797Commented:
Your problem is still vague.

When you say you want the same results every time you run the program are you saying you need a timer that starts from 0 every time the program starts up?

The routine I gave you uses the local time of day.  How would the time of day vary because you add more users?

When you say you want to send a message from one node to another, do you mean you want the system to communicate from one computer to another?  When you talk about a simulation, it sounds like you intend to run it as a single CPU process.

In short, what do you mean?




0
CL050597Author Commented:
Clarification: (1) If I were to have a timer which started at "0" that would be great! (2) If 2 users are using the same computer (cpu) then each would get about half of the cpu time; Thus, their programs would terminate faster than if 200 users were using this same computer (cpu). If 200 users were using the same computer then each would receive about 1/200 th of the cpu time; Thus, their programs would terminate (in real time) a lot slower.
Therefore, the 2 run times of the same program would would give different results. Eg: One run of the program would say this message took 1msec to reach destination, and another run would say the message took 0.5 msec to travel to the same destination.
(3) I want to run a WAN (wide area network) simulation on a single cpu, but "md's" 3rd question is irrelevent to the actual problem. Ie: I only want a timer and the application doesn't affect the timer, really!
0
md041797Commented:
OK, so I think what you want is a timer class that will start at 0 on startup, and will give the same results regardless of the load on the system.

So, if I am assuming correctly (a dangerous proposition at best) this should work:


class TimeStamper {
public:
 double GetStamp {return difftime (clock(), TheStamp;}
private:
 static time_t TheStamp;
 };

TimeStamp::TheStamp = clock();


0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
C++

From novice to tech pro — start learning today.