public static double GetPreciseElapsedTime(this Instrumentation instrumentation)
{
// using reflection to access private member of class at run time
// The drawbacks of reflection are:
// 1) It has a performance penalty cost
// 2) Reflection breaks if type changes
var fieldInfo = typeof(Instrumentation).GetField("_startedAt", BindingFlags.Instance | BindingFlags.NonPublic);
var startedAt = (DateTime)fieldInfo.GetValue(instrumentation);
return(new TimeSpan(DateTime.Now.Ticks - startedAt.Ticks).TotalSeconds);
}
public static long getReallyPreciseElapsedTime(this Instrumentation instrumentation)
{
return(_Stopwatches[instrumentation.Id].ElapsedMilliseconds);
}
public static void StartWithPrecision(this Instrumentation instrumentation)
{
_Stopwatches[instrumentation.Id] = Stopwatch.StartNew();
}
