unsafe uint EtwNotificationCallback(uint requestCode, System.IntPtr context, System.IntPtr bufferSize, byte *buffer)
{
if (null == buffer)
{
//note that the return value will be ignored
return(uint.MaxValue);
}
EventTraceHeader *eventBuffer = (EventTraceHeader *)buffer;
switch (requestCode)
{
case RequestCodes.EnableEvents:
this.traceHandle = eventBuffer->HistoricalContext;
int flags = EtwNativeMethods.GetTraceEnableFlags((ulong)this.traceHandle);
int level = EtwNativeMethods.GetTraceEnableLevel((ulong)this.traceHandle);
using (Process process = Process.GetCurrentProcess())
{
if (flags == process.Id)
{
//TODO, vadim, if the listener is private, forward the level
//if not, consider using TraceFilter
//Level = LevelFromInt(level);
}
}
break;
case RequestCodes.DisableEvents:
this.traceHandle = 0;
break;
default:
this.traceHandle = 0;
break;
}
return(0);
}
