private static void UseAssemblyForDynamicInvokers(Assembly diagnosticSourceAssembly, string diagnosticSourceTypeName, string diagnosticListenerTypeName)
{
if (Object.ReferenceEquals(s_diagnosticSourceAssemblyInCurrentUse, diagnosticSourceAssembly))
{
if (Log.IsDebugLoggingEnabled)
{
Log.Debug(LogComponentMoniker,
$"The DiagnosticSource-assembly (DS) instance being set for use by dynamic invokers"
+ " is the same as the assembly instance already being used. Dynamic invokers will not be reset.",
"DS FullName", s_diagnosticSourceAssemblyInCurrentUse?.FullName,
"DS Location", s_diagnosticSourceAssemblyInCurrentUse?.Location,
"DS CodeBase", s_diagnosticSourceAssemblyInCurrentUse?.CodeBase,
"CurrentAppDomain.Id", AppDomain.CurrentDomain.Id,
"CurrentAppDomain.FriendlyName", AppDomain.CurrentDomain.FriendlyName,
"CurrentAppDomain.IsDefault", AppDomain.CurrentDomain.IsDefaultAppDomain());
}
return;
}
// We must be under s_setupDynamicInvokersLock when calling this method!
// So everythign we do should be atomic in respect to re-loading DS and updating invokers.
Type diagnosticSourceType = diagnosticSourceAssembly.GetType(diagnosticSourceTypeName, throwOnError: true);
Type diagnosticListenerType = diagnosticSourceAssembly.GetType(diagnosticListenerTypeName, throwOnError: true);
// Make sure to log type info incl. AssemblyQualifiedName. In theory, types may be forwarded.
Log.Info(LogComponentMoniker,
$"Setting a new instance of the DiagnosticSource-assembly (DS) for use by dynamic invokers."
+ " Users of existing dynamic invokers may fail, and new stub instances will need to be set up to correct it.",
"Previous DS FullName", s_diagnosticSourceAssemblyInCurrentUse?.FullName,
"Previous DS Location", s_diagnosticSourceAssemblyInCurrentUse?.Location,
"Previous DS CodeBase", s_diagnosticSourceAssemblyInCurrentUse?.CodeBase,
"New DS FullName", diagnosticSourceAssembly?.FullName,
"New DS Location", diagnosticSourceAssembly?.Location,
"New DS CodeBase", diagnosticSourceAssembly?.CodeBase,
"DiagnosticSource type", diagnosticSourceType?.AssemblyQualifiedName,
"DiagnosticListener type", diagnosticListenerType?.AssemblyQualifiedName,
"CurrentAppDomain.Id", AppDomain.CurrentDomain.Id,
"CurrentAppDomain.FriendlyName", AppDomain.CurrentDomain.FriendlyName,
"CurrentAppDomain.IsDefault", AppDomain.CurrentDomain.IsDefaultAppDomain());
var newInvoker = new DynamicInvoker(diagnosticSourceAssembly.FullName, diagnosticSourceType, diagnosticListenerType);
DynamicInvoker.Current = newInvoker;
s_diagnosticSourceAssemblyInCurrentUse = diagnosticSourceAssembly;
}
public static bool TryGetCurrent(out DynamicInvoker currentInvoker)
{
currentInvoker = Volatile.Read(ref s_currentInvoker);
return(currentInvoker != null);
}
public static IDisposable SubscribeDynamicInvokerInitializedListener(Action <DiagnosticSourceAssembly.IDynamicInvoker, object> dynamicInvokerInitializedAction, object state)
{
Validate.NotNull(dynamicInvokerInitializedAction, nameof(dynamicInvokerInitializedAction));
return(DynamicInvoker.SubscribeInitializedListener(dynamicInvokerInitializedAction, state));
}