private ResolutionAttempt ParseResolutionAttemptedEvent(Func <string, object> getData, Func <string, string> getDataString)
{
var attempt = new ResolutionAttempt()
{
AssemblyName = new AssemblyName(getDataString("AssemblyName")),
Stage = (ResolutionAttempt.ResolutionStage)getData("Stage"),
AssemblyLoadContext = getDataString("AssemblyLoadContext"),
Result = (ResolutionAttempt.ResolutionResult)getData("Result"),
ResultAssemblyPath = getDataString("ResultAssemblyPath"),
ErrorMessage = getDataString("ErrorMessage")
};
string resultName = getDataString("ResultAssemblyName");
if (!string.IsNullOrEmpty(resultName))
{
attempt.ResultAssemblyName = new AssemblyName(resultName);
}
return(attempt);
}
private static ResolutionAttempt GetResolutionAttempt(AssemblyName assemblyName, ResolutionStage stage, AssemblyLoadContext alc, ResolutionResult result, AssemblyName resultAssemblyName, string resultAssemblyPath, string errorMessage = null)
{
var attempt = new ResolutionAttempt()
{
AssemblyName = assemblyName,
Stage = stage,
AssemblyLoadContext = alc == AssemblyLoadContext.Default ? DefaultALC : alc.ToString(),
Result = result,
ResultAssemblyName = resultAssemblyName,
ResultAssemblyPath = resultAssemblyPath
};
if (!string.IsNullOrEmpty(errorMessage))
{
attempt.ErrorMessage = errorMessage;
}
else
{
switch (result)
{
case ResolutionAttempt.ResolutionResult.AssemblyNotFound:
attempt.ErrorMessage = "Could not locate assembly";
break;
case ResolutionAttempt.ResolutionResult.IncompatibleVersion:
attempt.ErrorMessage = $"Requested version {assemblyName.Version} is incompatible with found version {resultAssemblyName.Version}";
break;
case ResolutionAttempt.ResolutionResult.MismatchedAssemblyName:
attempt.ErrorMessage = $"Requested assembly name '{assemblyName.FullName}' does not match found assembly name '{resultAssemblyName.FullName}'";
break;
}
}
return(attempt);
}
protected override void OnEventWritten(EventWrittenEventArgs data)
{
if (data.EventSource.Name != "Microsoft-Windows-DotNETRuntime")
{
return;
}
object GetData(string name)
{
int index = data.PayloadNames.IndexOf(name);
return(index >= 0 ? data.Payload[index] : null);
};
string GetDataString(string name) => GetData(name) as string;
switch (data.EventName)
{
case "AssemblyLoadStart":
{
BindOperation bindOperation = ParseAssemblyLoadStartEvent(data, GetDataString);
lock (eventsLock)
{
Assert.IsTrue(!bindOperations.ContainsKey(data.ActivityId), "AssemblyLoadStart should not exist for same activity ID ");
bindOperation.Nested = bindOperations.ContainsKey(data.RelatedActivityId);
bindOperations.Add(data.ActivityId, bindOperation);
if (bindOperation.Nested)
{
bindOperations[data.RelatedActivityId].NestedBinds.Add(bindOperation);
}
}
break;
}
case "AssemblyLoadStop":
{
lock (eventsLock)
{
Assert.IsTrue(bindOperations.ContainsKey(data.ActivityId), $"{data.EventName} should have a matching AssemblyBindStart");
BindOperation bind = bindOperations[data.ActivityId];
bind.Success = (bool)GetData("Success");
string resultName = GetDataString("ResultAssemblyName");
if (!string.IsNullOrEmpty(resultName))
{
bind.ResultAssemblyName = new AssemblyName(resultName);
}
bind.ResultAssemblyPath = GetDataString("ResultAssemblyPath");
bind.Cached = (bool)GetData("Cached");
bind.Completed = true;
}
break;
}
case "ResolutionAttempted":
{
ResolutionAttempt attempt = ParseResolutionAttemptedEvent(GetData, GetDataString);
lock (eventsLock)
{
Assert.IsTrue(bindOperations.ContainsKey(data.ActivityId), $"{data.EventName} should have a matching AssemblyBindStart");
BindOperation bind = bindOperations[data.ActivityId];
bind.ResolutionAttempts.Add(attempt);
}
break;
}
case "AssemblyLoadContextResolvingHandlerInvoked":
{
HandlerInvocation handlerInvocation = ParseHandlerInvokedEvent(GetDataString);
lock (eventsLock)
{
Assert.IsTrue(bindOperations.ContainsKey(data.ActivityId), $"{data.EventName} should have a matching AssemblyBindStart");
BindOperation bind = bindOperations[data.ActivityId];
bind.AssemblyLoadContextResolvingHandlers.Add(handlerInvocation);
}
break;
}
case "AppDomainAssemblyResolveHandlerInvoked":
{
HandlerInvocation handlerInvocation = ParseHandlerInvokedEvent(GetDataString);
lock (eventsLock)
{
Assert.IsTrue(bindOperations.ContainsKey(data.ActivityId), $"{data.EventName} should have a matching AssemblyBindStart");
BindOperation bind = bindOperations[data.ActivityId];
bind.AppDomainAssemblyResolveHandlers.Add(handlerInvocation);
}
break;
}
case "AssemblyLoadFromResolveHandlerInvoked":
{
LoadFromHandlerInvocation loadFrom = ParseLoadFromHandlerInvokedEvent(GetData, GetDataString);
lock (eventsLock)
{
Assert.IsTrue(bindOperations.ContainsKey(data.ActivityId), $"{data.EventName} should have a matching AssemblyBindStart");
BindOperation bind = bindOperations[data.ActivityId];
bind.AssemblyLoadFromHandler = loadFrom;
}
break;
}
case "KnownPathProbed":
{
ProbedPath probedPath = ParseKnownPathProbedEvent(GetData, GetDataString);
lock (eventsLock)
{
Assert.IsTrue(bindOperations.ContainsKey(data.ActivityId), $"{data.EventName} should have a matching AssemblyBindStart");
BindOperation bind = bindOperations[data.ActivityId];
bind.ProbedPaths.Add(probedPath);
}
break;
}
}
}
protected override void OnEventWritten(EventWrittenEventArgs data)
{
if (data.EventSource.Name != "Microsoft-Windows-DotNETRuntime")
{
return;
}
object GetData(string name)
{
int index = data.PayloadNames.IndexOf(name);
return(index >= 0 ? data.Payload[index] : null);
};
string GetDataString(string name) => GetData(name) as string;
switch (data.EventName)
{
case "AssemblyLoadStart":
{
BindOperation bindOperation = ParseAssemblyLoadStartEvent(data, GetDataString);
if (!IsLoadToTrack(bindOperation.AssemblyName.Name))
{
return;
}
lock (eventsLock)
{
Assert.IsTrue(!bindOperations.ContainsKey(data.ActivityId), "AssemblyLoadStart should not exist for same activity ID ");
bindOperation.Nested = bindOperations.ContainsKey(data.RelatedActivityId);
bindOperations.Add(data.ActivityId, bindOperation);
if (bindOperation.Nested)
{
bindOperations[data.RelatedActivityId].NestedBinds.Add(bindOperation);
}
}
break;
}
case "AssemblyLoadStop":
{
string assemblyName = GetDataString("AssemblyName");
if (!IsLoadToTrack(new AssemblyName(assemblyName).Name))
{
return;
}
bool success = (bool)GetData("Success");
string resultName = GetDataString("ResultAssemblyName");
lock (eventsLock)
{
if (!bindOperations.ContainsKey(data.ActivityId))
{
Assert.Fail(GetMissingAssemblyBindStartMessage(data, $"Success={success}, Name={resultName}"));
}
BindOperation bind = bindOperations[data.ActivityId];
bind.Success = success;
if (!string.IsNullOrEmpty(resultName))
{
bind.ResultAssemblyName = new AssemblyName(resultName);
}
bind.ResultAssemblyPath = GetDataString("ResultAssemblyPath");
bind.Cached = (bool)GetData("Cached");
bind.Completed = true;
}
break;
}
case "ResolutionAttempted":
{
ResolutionAttempt attempt = ParseResolutionAttemptedEvent(GetData, GetDataString);
if (!IsLoadToTrack(attempt.AssemblyName.Name))
{
return;
}
lock (eventsLock)
{
if (!bindOperations.ContainsKey(data.ActivityId))
{
Assert.Fail(GetMissingAssemblyBindStartMessage(data, attempt.ToString()));
}
BindOperation bind = bindOperations[data.ActivityId];
bind.ResolutionAttempts.Add(attempt);
}
break;
}
case "AssemblyLoadContextResolvingHandlerInvoked":
{
HandlerInvocation handlerInvocation = ParseHandlerInvokedEvent(GetDataString);
if (!IsLoadToTrack(handlerInvocation.AssemblyName.Name))
{
return;
}
lock (eventsLock)
{
if (!bindOperations.ContainsKey(data.ActivityId))
{
Assert.Fail(GetMissingAssemblyBindStartMessage(data, handlerInvocation.ToString()));
}
BindOperation bind = bindOperations[data.ActivityId];
bind.AssemblyLoadContextResolvingHandlers.Add(handlerInvocation);
}
break;
}
case "AppDomainAssemblyResolveHandlerInvoked":
{
HandlerInvocation handlerInvocation = ParseHandlerInvokedEvent(GetDataString);
if (!IsLoadToTrack(handlerInvocation.AssemblyName.Name))
{
return;
}
lock (eventsLock)
{
if (!bindOperations.ContainsKey(data.ActivityId))
{
Assert.Fail(GetMissingAssemblyBindStartMessage(data, handlerInvocation.ToString()));
}
BindOperation bind = bindOperations[data.ActivityId];
bind.AppDomainAssemblyResolveHandlers.Add(handlerInvocation);
}
break;
}
case "AssemblyLoadFromResolveHandlerInvoked":
{
LoadFromHandlerInvocation loadFrom = ParseLoadFromHandlerInvokedEvent(GetData, GetDataString);
if (!IsLoadToTrack(loadFrom.AssemblyName.Name))
{
return;
}
lock (eventsLock)
{
if (!bindOperations.ContainsKey(data.ActivityId))
{
Assert.Fail(GetMissingAssemblyBindStartMessage(data, loadFrom.ToString()));
}
BindOperation bind = bindOperations[data.ActivityId];
bind.AssemblyLoadFromHandler = loadFrom;
}
break;
}
case "KnownPathProbed":
{
ProbedPath probedPath = ParseKnownPathProbedEvent(GetData, GetDataString);
string name = System.IO.Path.GetFileNameWithoutExtension(probedPath.FilePath);
if (!IsLoadToTrack(name.EndsWith(".ni") ? name.Remove(name.Length - 3) : name))
{
return;
}
lock (eventsLock)
{
if (!bindOperations.ContainsKey(data.ActivityId))
{
Assert.Fail(GetMissingAssemblyBindStartMessage(data, probedPath.ToString()));
}
BindOperation bind = bindOperations[data.ActivityId];
bind.ProbedPaths.Add(probedPath);
}
break;
}
}
}