How to stop execution of a program through code?

When i execute a program, if the execution exceeds 2 minutes, i wanted to stop the execution through code. What should i do to check time and stop if it exceeds a certain time?

Answer 1

[Jan]

tic;
while toc < 120
    figure;
    axes;
    plot(1:1000, rand(1, 1000));
    pause(0.5);
    delete(gcf); 
end

Or equivalently:

startTime = clock;
while etime(clock, startTime) < 120
   ...
end

Another approach is a timer object:

TimerH = timer('ExecutionMode', 'singleShot', ...
    'TimerFcn',   @myCallback, ...
    'StartDelay', 120);

myCallback('reset');
start(TimerH);
while true
   pause(1.0)
   disp(clock)
   if myCallback('get')
      break;
   end
end


function Reply = myCallback(Arg1, EventData)
persistent Triggered
if ischar(Arg1)
  switch Arg1
      case 'reset'
          Triggered = false;
      case 'get'
          Reply = any(Triggered);
  end
  return;
end
Triggered = true;
end