private static bool PerformInitialization()
{
// We will now try to load the "right" version of System.Diagnostics.DiagnosticSource.dll
// (henceforth we'll use the abbreviation DiagnosticSource.dll).
// Here, "right" is defined as: if the app is using DiagnosticSource.dll we prefer to load that version.
// Otherwise we prefer the version included with this library, which should be a relatively recent one.
Assembly diagnosticSourceAssembly = LoadDiagnosticSourceAssembly();
if (diagnosticSourceAssembly == null)
{
return(false);
}
Type activityType = diagnosticSourceAssembly.GetType(ActivityType_FullName, throwOnError: true);
if (activityType == null)
{
return(false);
}
var supportedFeatures = new SupportedFeatures()
{
};
s_invoker = new DynamicInvokerOld(supportedFeatures, activityType, null, null);
return(true);
}
internal DynamicInvokerOld(
SupportedFeatures supportedFeatures,
Type activityType,
Type activityListenerType,
Type activitySourceType)
{
Validate.NotNull(supportedFeatures, nameof(supportedFeatures));
_supportedFeatures = supportedFeatures;
Activity = new DynamicActivityInvoker(activityType);
DiagnosticListener = new DynamicDiagnosticListenerInvoker(activityListenerType);
ActivitySource = (activitySourceType == null) ? null : new DynamicActivitySourceInvoker(activitySourceType);
}