/// <summary>
/// Ensures that an ETW provider is initialized
/// </summary>
internal static void EnsureEtwProviderInitialized()
{
if (TelemetryEventSource == null)
{
TelemetryEventSource = new TelemetryNullEtwProvider();
}
}
/// <summary>
/// Initialized the host specific ETW provider instance to be used by the telemetry service
/// This method must be called before any telemetry APIs are used otherwise default provider will be used and
/// the subsequent InitializeEtwProvider calls will throw.
/// </summary>
/// <param name="provider">Provider instance to be used</param>
public static void InitializeEtwProvider(ITelemetryEtwProvider provider)
{
CodeContract.RequiresArgumentNotNull <ITelemetryEtwProvider>(provider, "provider");
if (TelemetryEventSource != null)
{
throw new InvalidOperationException("Telemetry ETW provider can only be initialized once.");
}
TelemetryEventSource = provider;
}
