private readonly int _index; // this is the sequence # in which the counter was added
public PerfCounterInfo(string counterPath, PdhCounterHandle handle, int index)
{
_index = index;
string[] tokens = counterPath.Split(new[] { '\\' }, StringSplitOptions.RemoveEmptyEntries);
if (tokens.Length < 3)
{
_machine = Environment.MachineName;
_counterSet = tokens[0];
_counterName = tokens[1];
}
else
{
_machine = tokens[0];
_counterSet = tokens[1];
_counterName = tokens[2];
_counterHandle = handle;
}
if (_counterSet.EndsWith(")"))
{
int openIndex = _counterSet.LastIndexOf('(');
_instance = _counterSet.Substring(openIndex + 1, _counterSet.Length - openIndex - 2);
_counterSet = _counterSet.Substring(0, openIndex);
}
_counterHandle = handle;
}
private readonly int _index; // this is the sequence # in which the counter was added
public PerfCounterInfo(string counterPath, PdhCounterHandle handle, int index)
{
_counterPath = counterPath;
_index = index;
string counterPattern = @"(\\\\){0,1}(?<machine>.+?){0,1}\\(?<object>.+?)(?<instance>\(.*?\)){0,1}\\(?<counter>.+)";
Match counterInfo = Regex.Match(counterPath, counterPattern);
_machine = Environment.MachineName;
if (counterInfo.Groups["machine"]?.Value != null)
{
_machine = counterInfo.Groups["machine"].Value;
}
_counterHandle = handle;
_counterName = counterInfo.Groups["counter"].Value;
_counterSet = counterInfo.Groups["object"].Value;
_instance = Regex.Replace(counterInfo.Groups["instance"].Value, @"^\(|\)$", "");
}
public static extern PdhStatus PdhGetCounterInfo(
PdhCounterHandle phCounter,
bool bRetrieveExplainText,
ref UInt32 pdwBufferSize,
IntPtr lpBuffer);
public static extern PdhStatus PdhGetCounterTimeBase(
PdhCounterHandle phCounter,
out UInt64 pTimeBase);
public static extern PdhStatus PdhGetRawCounterValue(
PdhCounterHandle phCounter,
out uint lpdwType,
out PDH_RAW_COUNTER pValue);
public static extern PdhStatus PdhGetFormattedCounterArray(
PdhCounterHandle phCounter,
PdhFormat dwFormat,
ref UInt32 dwBufferSize,
out UInt32 dwBufferCount,
IntPtr itemBuffer);
public static extern PdhStatus PdhGetFormattedCounterValue(
PdhCounterHandle phCounter,
PdhFormat dwFormat,
ref uint lpdwType,
ref PDH_FMT_COUNTERVALUE pValue);
public static extern PdhStatus PdhAddCounter(
PdhQueryHandle hQuery,
string szFullCounterPath,
IntPtr dwUserData,
out PdhCounterHandle phCounter);
