static void Main(string[] args)
{
CounterCreationDataCollection counters = new CounterCreationDataCollection();
counters.Add(new CounterCreationData("Sales", "Number of total sales", PerformanceCounterType.NumberOfItems64));
counters.Add(new CounterCreationData("Active Users", "Number of active users", PerformanceCounterType.NumberOfItems64));
counters.Add(new CounterCreationData("Sales value", "Total value of all sales", PerformanceCounterType.NumberOfItems64));
PerformanceCounterCategory.Create("MyApp Counters", "Counters describing the performance of MyApp",
PerformanceCounterCategoryType.SingleInstance, counters);
PerformanceCounter pc = new PerformanceCounter("MyApp Counters", "Sales", false);
pc.RawValue = 7;
pc.Decrement();
pc.Increment();
pc.IncrementBy(3);
}
internal bool Decrement()
{
if (!this.Accessible)
{
return(false);
}
try
{
_counter.Decrement();
}
catch (Exception ex)
{
LogException(ex);
return(false);
}
return(true);
}
static void DecrementCounter(ref PerformanceCounter counter)
{
if (counter != null)
{
try
{
counter.Decrement();
}
#pragma warning suppress 56500 // covered by FxCOP
catch (Exception exception)
{
if (Fx.IsFatal(exception))
{
throw;
}
ListenerPerfCounters.TracePerformanceCounterUpdateFailure(counter.InstanceName, counter.CounterName);
counter = null;
}
}
}
private static void DoItem(PerformanceCounter c)
{
c.Increment();
Thread.Sleep(5);
c.Decrement();
}