/// <include file='doc\PerformanceCounterManager.uex' path='docs/doc[@for="PerformanceCounterManager.Initialize"]/*' />
/// <devdoc>
/// Initializes perf com dll internal tables
/// </devdoc>
/// <internalonly/>
private void Initialize()
{
if (FirstEntry)
{
lock (this) {
if (FirstEntry)
{
RegistryKey parentKey = null;
perfObjects = new Hashtable();
//SECREVIEW: This is being loaded by NT, it is executed
// when perfmon collects the data for all the
// registered counters.
RegistryPermission registryPermission = new RegistryPermission(PermissionState.Unrestricted);
registryPermission.Assert();
try {
parentKey = Registry.LocalMachine.OpenSubKey("SYSTEM\\CurrentControlSet\\Services");
if (parentKey == null)
{
return;
}
string[] categoryNames = parentKey.GetSubKeyNames();
for (int i = 0; i < categoryNames.Length; i++)
{
try {
RegistryKey currentKey = parentKey.OpenSubKey(categoryNames[i] + "\\Performance");
if (currentKey == null)
{
continue;
}
object systemDllName = currentKey.GetValue("Library");
if (systemDllName == null || !(systemDllName is string) || String.Compare((string)systemDllName, PerformanceCounterLib.PerfShimName, true, CultureInfo.InvariantCulture) != 0)
{
continue;
}
object openEntryPoint = currentKey.GetValue("Open");
if (openEntryPoint == null || !(openEntryPoint is string) || (string)openEntryPoint != PerformanceCounterLib.OpenEntryPoint)
{
continue;
}
object collectEntryPoint = currentKey.GetValue("Collect");
if (collectEntryPoint == null || !(collectEntryPoint is string) || (string)collectEntryPoint != PerformanceCounterLib.CollectEntryPoint)
{
continue;
}
object closeEntryPoint = currentKey.GetValue("Close");
if (closeEntryPoint == null || !(closeEntryPoint is string) || (string)closeEntryPoint != PerformanceCounterLib.CloseEntryPoint)
{
continue;
}
object counterDisabled = currentKey.GetValue("Disable Performance Counters");
if (counterDisabled != null && (int)counterDisabled != 0)
{
continue;
}
object firstCounterId = currentKey.GetValue("First Counter");
if (firstCounterId == null)
{
continue;
}
object lastCounterId = currentKey.GetValue("Last Counter");
if (lastCounterId == null)
{
continue;
}
object firstHelpId = currentKey.GetValue("First Help");
if (firstHelpId == null)
{
continue;
}
object countersData = currentKey.GetValue("Counter Types");
int[] counterTypes = null;
if (countersData == null)
{
counterTypes = new int[0];
}
else
{
string[] counterStrs;
if (countersData is string[])
{
counterStrs = (string[])countersData;
}
else if (countersData is byte[])
{
counterStrs = PerformanceCounterLib.GetStrings((byte[])countersData);
}
else
{
counterStrs = new string[0];
}
counterTypes = new int[counterStrs.Length];
for (int index = 0; index < counterTypes.Length; index++)
{
counterTypes[index] = Int32.Parse(counterStrs[index]);
}
}
countersData = currentKey.GetValue("Counter Names");
int[] counterNameHashCodes = null;
string[] counterNames = null;
if (countersData == null)
{
counterNameHashCodes = new int[0];
counterNames = new string[0];
}
else
{
string[] counterStrs;
if (countersData is string[])
{
counterStrs = (string[])countersData;
}
else if (countersData is byte[])
{
counterStrs = PerformanceCounterLib.GetStrings((byte[])countersData);
}
else
{
counterStrs = new string[0];
}
counterNameHashCodes = new int[counterStrs.Length];
counterNames = new string[counterStrs.Length];
for (int index = 0; index < counterTypes.Length; index++)
{
counterNames[index] = counterStrs[index].ToLower(CultureInfo.InvariantCulture);
counterNameHashCodes[index] = counterNames[index].GetHashCode();
}
}
if ((int)firstCounterId != -1 && (int)firstHelpId != -1)
{
ObjectData data = new ObjectData();
data.CategoryName = categoryNames[i].ToLower(CultureInfo.InvariantCulture);
data.CategoryNameHashCode = data.CategoryName.GetHashCode();
data.CounterTypes = counterTypes;
data.CounterNames = counterNames;
data.CounterNameHashCodes = counterNameHashCodes;
data.FirstCounterId = (int)firstCounterId;
data.FirstHelpId = (int)firstHelpId;
perfObjects.Add((int)firstCounterId, data);
}
}
catch (Exception) {
}
}
}
finally {
if (parentKey != null)
{
parentKey.Close();
}
RegistryPermission.RevertAssert();
}
FirstEntry = false;
}
}
}
}
