private string GetAllInstancesLayout(string categoryName)
{
StringBuilder stringBuilder = new StringBuilder();
try
{
using (PerformanceCounterMemoryMappedFile performanceCounterMemoryMappedFile = new PerformanceCounterMemoryMappedFile(categoryName, true))
{
CategoryEntry categoryEntry = performanceCounterMemoryMappedFile.FindCategory(categoryName);
if (categoryEntry != null)
{
for (InstanceEntry instanceEntry = categoryEntry.FirstInstance; instanceEntry != null; instanceEntry = instanceEntry.Next)
{
CounterEntry firstCounter = instanceEntry.FirstCounter;
if (firstCounter != null)
{
LifetimeEntry lifetime = firstCounter.Lifetime;
if (lifetime != null && lifetime.Type == 1)
{
stringBuilder.AppendLine(string.Format("A process is holding onto a transport performance counter. processId : {0}, counter : {1}, currentInstance : {2}, categoryName: {3} ", new object[]
{
lifetime.ProcessId,
firstCounter,
instanceEntry,
categoryName
}));
}
}
}
}
}
}
catch (Win32Exception ex)
{
stringBuilder.AppendLine(string.Concat(new object[]
{
"Win32Exception for category ",
categoryName,
" : ",
ex
}));
}
catch (FileMappingNotFoundException ex2)
{
stringBuilder.AppendLine(string.Concat(new object[]
{
"FileMappingNotFoundException for category ",
categoryName,
" : ",
ex2
}));
}
catch (Exception arg)
{
stringBuilder.AppendLine("Exception : " + arg);
}
return(stringBuilder.ToString());
}
public CategoryEntry FindCategory(string categoryName)
{
CategoryEntry next = this.FirstCategory;
while (next != null && string.Compare(next.Name, categoryName, StringComparison.OrdinalIgnoreCase) != 0)
{
next = next.Next;
}
return(next);
}
private unsafe void InitializeNextCategory(IntPtr handle)
{
CategoryEntry categoryEntry = this;
while (categoryEntry.internalCategoryEntry->NextCategoryOffset != 0)
{
CategoryEntry categoryEntry2 = new CategoryEntry(CategoryEntry.GetInternalCategoryEntry(handle, categoryEntry.internalCategoryEntry->NextCategoryOffset), handle);
categoryEntry.nextCategoryEntry = categoryEntry2;
categoryEntry = categoryEntry2;
}
}
public void RemoveCategory(string categoryName, Action <CounterEntry, LifetimeEntry, InstanceEntry> logRemoveInstanceEvent)
{
CategoryEntry categoryEntry = this.FindCategory(categoryName);
if (categoryEntry != null)
{
for (InstanceEntry instanceEntry = categoryEntry.FirstInstance; instanceEntry != null; instanceEntry = instanceEntry.Next)
{
CounterEntry firstCounter = instanceEntry.FirstCounter;
if (firstCounter != null)
{
LifetimeEntry lifetime = firstCounter.Lifetime;
if (lifetime != null && lifetime.Type == 1)
{
instanceEntry.RefCount = 0;
logRemoveInstanceEvent(firstCounter, lifetime, instanceEntry);
}
}
}
}
}
public CategoryEntry(IntPtr handle, int offset) : this(CategoryEntry.GetInternalCategoryEntry(handle, offset), handle)
{
this.offset = offset;
this.InitializeNextCategory(handle);
}