public static CounterEntry GetCounterEntry(IntPtr handle, int offset)
{
CounterEntry counterEntry = CounterEntry.InternalGetCounterEntry(handle, offset);
counterEntry.InitializeNextCounter(handle);
return(counterEntry);
}
private unsafe void Initialize(IntPtr handle)
{
if (this.internalInstanceEntry->FirstCounterOffset != 0)
{
this.counterEntry = CounterEntry.GetCounterEntry(handle, this.internalInstanceEntry->FirstCounterOffset);
}
this.name = new string((long)handle / 2L + this.internalInstanceEntry->InstanceNameOffset);
}
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());
}
private void InitializeNextCounter(IntPtr handle)
{
CounterEntry counterEntry = this;
while (counterEntry.NextCounterOffset != 0)
{
CounterEntry counterEntry2 = CounterEntry.InternalGetCounterEntry(handle, counterEntry.NextCounterOffset);
counterEntry.nextCounterEntry = counterEntry2;
counterEntry = counterEntry2;
}
}
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);
}
}
}
}
}
