private static XElement GenerateElementForPerformanceCounter(
PerformanceData counter,
PerformanceData parent)
{
XElement result = new XElement("counter");
result.Add(new XAttribute("name", counter.Name));
double percentage;
if (parent == null)
{
percentage = 100;
}
else
{
percentage = GetPercentage(parent.AccumulatedSpan, counter.AccumulatedSpan);
}
result.Add(new XAttribute("Percentage", percentage));
result.Add(new XAttribute("TotalTime", counter.AccumulatedSpan));
foreach (PerformanceData child in GetChildren(counter))
{
result.Add(GenerateElementForPerformanceCounter(child, counter));
}
return(result);
}
public static void Start(string name, string parentCounterName)
{
if (String.IsNullOrEmpty(parentCounterName)) // it's root
{
lock (Map)
{
if (Map.Count > 0)
{
throw new NotSupportedException("Root element already set.");
}
root = new PerformanceData(name, parentCounterName);
Map[name] = root;
}
}
else
{
if (Map.ContainsKey(name))
{
PerformanceData ctr = Map[name];
if (!ctr.Closed)
{
throw new NotSupportedException("Cannot reopen counter which is not yet closed.");
}
ctr.Reopen();
}
else
{
Map[name] = new PerformanceData(name, parentCounterName);
}
}
}
private static IEnumerable <PerformanceData> GetChildren(PerformanceData parent)
{
return(Map.Where(v =>
v.Value.ParentName.Equals(parent.Name, StringComparison.OrdinalIgnoreCase))
.Select(v => v.Value));
}