/// <summary>
/// Creates and begins a new measurement.
/// </summary>
/// <param name="entity">The entity.</param>
/// <param name="metric">The metric.</param>
public MetricMeasurement(IReactiveResource entity, EntityMetric metric)
{
_entity = entity;
_metric = metric;
entity.BeginMetric(metric);
}
/// <summary>
/// Creates and starts a new measurement.
/// </summary>
/// <param name="entity">The entity.</param>
/// <param name="metric">The metric.</param>
/// <returns>A measurement object that should be disposed to end the measurement.</returns>
internal static MetricMeasurement Measure(this IReactiveResource entity, EntityMetric metric)
{
if (entity == null)
{
throw new ArgumentNullException(nameof(entity));
}
return(new MetricMeasurement(entity, metric));
}
/// <summary>
/// Stops a timer for a given entity and metric, and store the elapsed time.
/// </summary>
/// <param name="entity">The entity.</param>
/// <param name="metric">The metric.</param>
internal static void EndMetric(this IReactiveResource entity, EntityMetric metric)
{
if (entity == null)
{
throw new ArgumentNullException(nameof(entity));
}
if (ShouldTrack)
{
Impl.Instance.EndMetric(entity, metric);
}
}
/// <summary>
/// Set a time span for a given entity and metric.
/// </summary>
/// <param name="entity">The entity.</param>
/// <param name="metric">The metric.</param>
/// <param name="elapsed">The time span.</param>
internal static void SetMetric(this IReactiveResource entity, EntityMetric metric, TimeSpan elapsed)
{
if (entity == null)
{
throw new ArgumentNullException(nameof(entity));
}
if (elapsed < TimeSpan.Zero)
{
throw new ArgumentOutOfRangeException(nameof(elapsed));
}
if (ShouldTrack)
{
Impl.Instance.SetMetric(entity, metric, elapsed);
}
}
public void EndMetric(IReactiveResource entity, EntityMetric metric)
{
var entityMetrics = GetEntityMetrics(entity);
var idx = (int)metric;
var startingTicks = entityMetrics[idx];
if (startingTicks == EmptyMetric)
{
// End before start
return;
}
if (startingTicks >= 0)
{
// The metric was already set. We can't do anything else.
return;
}
entityMetrics[idx] = startingTicks + s_timer.Elapsed.Ticks;
}
public void SetMetric(IReactiveResource entity, EntityMetric metric, TimeSpan elapsed)
{
GetEntityMetrics(entity)[(int)metric] = elapsed.Ticks;
}
public void BeginMetric(IReactiveResource entity, EntityMetric metric)
{
var entityMetrics = GetEntityMetrics(entity);
Interlocked.Exchange(ref entityMetrics[(int)metric], -1 * s_timer.Elapsed.Ticks);
}
private static void Set(IReactiveResource entity, EntityMetric metric, TimeSpan elapsed)
{
EntityMetricsTracker.Impl.Instance.SetMetric(entity, metric, elapsed);
}
private static void End(IReactiveResource entity, EntityMetric metric)
{
EntityMetricsTracker.Impl.Instance.EndMetric(entity, metric);
}
