/// <nodoc />
internal static void LogEvent(string eventName, AriaNative.EventProperty[] eventProperties)
{
if (!IsEnabled)
{
return;
}
AriaNative.LogEvent(s_ariaLogger, eventName, eventProperties);
}
/// <summary>
/// Ensure that all events are sent and shuts down telemetry. This should be done before the application exits.
/// It should not be called if the application will log any more telemetry events in the future
/// </summary>
public static ShutDownResult TryShutDown(TimeSpan timeout, out Exception?exception)
{
exception = null;
if (!IsEnabled)
{
return(ShutDownResult.Success);
}
lock (s_syncRoot)
{
if (s_hasBeenInitialized)
{
Exception? thrownException = null;
ShutDownResult shutDownResult = ShutDownResult.Failure;
Task shutdownTask = Task.Factory.StartNew(() =>
{
try
{
AriaNative.DisposeAriaLogger(s_ariaLogger);
s_ariaLogger = IntPtr.Zero;
shutDownResult = ShutDownResult.Success;
}
catch (Exception ex)
{
thrownException = ex;
shutDownResult = ShutDownResult.Failure;
}
});
bool finished = shutdownTask.Wait(timeout);
if (!finished)
{
// The telemetry client API doesn't provide a better way to cancel the shutdown. Leaving it
// dangling isn't great, but the process is about to shut down anyway.
shutDownResult = ShutDownResult.Timeout;
}
return(shutDownResult);
}
}
return(ShutDownResult.Success);
}
private static void Initialize(string tenantToken, TimeSpan teardownTimeout)
{
lock (s_syncRoot)
{
// Initialization may only happen once per application lifetime so we need some static state to enforce this
if (!s_hasBeenInitialized)
{
Contract.RequiresNotNull(s_ariaTelemetryDBLocation);
if (s_ariaTelemetryDBLocation.Length > 0 && !Directory.Exists(s_ariaTelemetryDBLocation))
{
Directory.CreateDirectory(s_ariaTelemetryDBLocation);
}
// s_ariaTelemetryDBLocation is defaulting to an empty string when not passed when enabling telemetry, in that case
// this causes the DB to be created in the current working directory of the process
s_ariaLogger = AriaNative.CreateAriaLogger(
tenantToken,
Path.Combine(s_ariaTelemetryDBLocation, s_ariaTelemetryDBName),
(int)teardownTimeout.TotalSeconds);
s_hasBeenInitialized = true;
}
}
}
