/// <summary>
/// ctor.
/// </summary>
/// <param name="sessionName">Name of the session.</param>
/// <param name="guid">The GUID.</param>
public EtwTraceController(string sessionName, Guid guid)
{
Debug.Assert(!String.IsNullOrEmpty(sessionName), "!String.IsNullOrEmpty(sessionName)");
CDFMonitor.LogOutputHandler("DEBUG:EtwTraceController.ctor: new trace:" + sessionName);
_sessionName = sessionName;
if (String.Compare(_sessionName, Properties.Resources.KernelSessionName, true) == 0)
{
// then its a controller for kernel
_isKernelController = true;
}
//_strguid = strGUID;
_guid = new NativeMethods.publicGuid(guid.ToByteArray());
}
/// <summary>
/// Initializes a new instance of the <see cref="EtwTraceWriter" /> class.
/// </summary>
public EtwTraceWriter()
{
// EventRegister only works on vista+ no xp or 2k3
if (CDFMonitor.Instance.Config.IsWinVistaOrHigher())
{
NativeMethods.publicGuid guid = new NativeMethods.publicGuid(EtwTraceGuid.ToByteArray());
uint ret2 = EventRegister(ref guid, IntPtr.Zero, IntPtr.Zero, ref _traceHandle);
Debug.Print("DEBUG:EtwTraceWriter:eventregister return:" + ret2.ToString());
_writerDisabled = false;
}
else
{
Debug.Print("DEBUG:EtwTraceWriter:eventregister not supported.");
}
}
/// <summary>
/// Enable/Disable the ETW session.
/// </summary>
/// <param name="enable">Indicates if the session should be enabled or disabled</param>
/// <param name="strguid">The strguid.</param>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
public bool EnableTrace(bool enable, string strguid)
{
Debug.Assert(!_isKernelController, "!_isKernelController");
NativeMethods.publicGuid guid = new NativeMethods.publicGuid();
try
{
CDFMonitor.LogOutputHandler(string.Format("DEBUG:EnableTrace:enabling trace:strguid:{0}", strguid));
guid = new NativeMethods.publicGuid(new Guid(strguid).ToByteArray());
Debug.Assert(_handle != 0 && NativeMethods.IsValidHandle(_handle),
"_handle != 0 && NativeMethods.IsValidHandle(_handle)");
NativeMethods.EventTraceProperties properties = CommonEventTraceProperties();
if (properties.EnableFlags != 0)
{
CDFMonitor.LogOutputHandler(string.Format("EnableTrace:KernelFlags configured/enabled. overriding EnableFlags and modules. returning:{0}", strguid));
return(true);
}
uint flags = 0xffffffff;
uint processResult = NativeMethods.EnableTrace(enable ? 1U : 0U, flags /* enableFlag */, (uint)CDFMonitor.Instance.Config.AppSettings.LogLevel /* enableLevel */, ref guid, _handle);
if (processResult != NativeMethods.ERROR_SUCCESS &&
processResult != NativeMethods.ERROR_CANCELLED)
{
CDFMonitor.LogOutputHandler("DEBUG:EnableTrace:enabling trace error:" + processResult.ToString());
return(false);
}
return(true);
}
catch (Exception e)
{
CDFMonitor.LogOutputHandler(string.Format("EnableTrace: exception enabling trace error:{0} guid:{1}", e, guid.ToString()));
return(false);
}
}
public static extern uint EventRegister([In] ref NativeMethods.publicGuid eventTraceProvider, IntPtr enableCallBackNotUsed, IntPtr pcallbackContextNotUsed, ref long traceHandle);