internal FunctionActivityTracker(IMetricsEventGenerator generator, int metricEventIntervalInSeconds)
{
MetricsEventGenerator = generator;
_metricEventIntervalInSeconds = metricEventIntervalInSeconds;
Task.Run(
async() =>
{
try
{
int currentSecond = _metricEventIntervalInSeconds;
while (!_etwTaskCancellationSource.Token.IsCancellationRequested)
{
RaiseMetricsPerFunctionEvent();
if (currentSecond >= _metricEventIntervalInSeconds)
{
RaiseFunctionMetricEvents();
currentSecond = 0;
}
else
{
currentSecond = currentSecond + 1;
}
await Task.Delay(TimeSpan.FromSeconds(1), _etwTaskCancellationSource.Token);
}
}
catch (TaskCanceledException)
{
// This exception gets throws when cancellation request is raised via cancellation token.
// Let's eat this exception and continue
}
},
_etwTaskCancellationSource.Token);
}
internal MetricsEventManager(IMetricsEventGenerator generator, int metricEventIntervalInSeconds)
{
// we read this in ctor (not static ctor) since it can change on the fly
siteName = GetNormalizedString(Environment.GetEnvironmentVariable("WEBSITE_SITE_NAME"));
_metricsEventGenerator = generator;
_metricEventIntervalInSeconds = metricEventIntervalInSeconds;
}
public WebHostMetricsLogger(IMetricsEventGenerator metricsEventGenerator, int metricEventIntervalInSeconds)
{
_metricsEventManager = new MetricsEventManager(metricsEventGenerator, metricEventIntervalInSeconds);
}
internal MetricsEventManager(IMetricsEventGenerator generator, int metricEventIntervalInSeconds)
{
_metricsEventGenerator = generator;
_metricEventIntervalInSeconds = metricEventIntervalInSeconds;
}
