public static ulong?Read(DkmInspectionSession inspectionSession, DkmThread thread, DkmStackWalkFrame frame, string type, string[] memberOptions, ref bool available, ref int success, ref int failure)
{
Debug.Assert(memberOptions.Length > 0);
long?result = null;
foreach (var option in memberOptions)
{
result = EvaluationHelpers.TryEvaluateNumberExpression($"(int)&(({type}*)0)->{option}", inspectionSession, thread, frame, DkmEvaluationFlags.TreatAsExpression | DkmEvaluationFlags.NoSideEffects);
if (result != null)
{
break;
}
}
if (!result.HasValue)
{
available = false;
failure++;
if (Log.instance != null)
{
Log.instance.Debug($"Failed to get offsetof '{memberOptions[0]}' in '{type}'");
}
return(null);
}
success++;
return((ulong)result.Value);
}
public static ulong?ReadOptional(DkmInspectionSession inspectionSession, DkmThread thread, DkmStackWalkFrame frame, string type, string member, string message, ref int optional)
{
long?result = EvaluationHelpers.TryEvaluateNumberExpression($"(int)&(({type}*)0)->{member}", inspectionSession, thread, frame, DkmEvaluationFlags.TreatAsExpression | DkmEvaluationFlags.NoSideEffects);
if (!result.HasValue)
{
if (Log.instance != null)
{
Log.instance.Debug($"Failed to get offsetof '{member}' in '{type}' (optional, {message})");
}
return(null);
}
optional++;
return((ulong)result.Value);
}
public static long GetSize(DkmInspectionSession inspectionSession, DkmThread thread, DkmStackWalkFrame frame, string type, ref bool available)
{
long?result = EvaluationHelpers.TryEvaluateNumberExpression($"sizeof({type})", inspectionSession, thread, frame, DkmEvaluationFlags.TreatAsExpression | DkmEvaluationFlags.NoSideEffects).GetValueOrDefault(0);
if (!result.HasValue)
{
available = false;
if (Log.instance != null)
{
Log.instance.Debug($"Failed to get sizeof '{type}'");
}
return(0);
}
return(result.Value);
}