private unsafe bool GetDataFromController(int etwSessionId,
ManifestEtw.EVENT_FILTER_DESCRIPTOR* filterData,
out ControllerCommand command, out byte[] data, out int dataStart)
{
data = null;
dataStart = 0;
if (filterData == null)
{
#if (!ES_BUILD_PCL && !PROJECTN)
string regKey = @"\Microsoft\Windows\CurrentVersion\Winevt\Publishers\{" + m_providerId + "}";
if (System.Runtime.InteropServices.Marshal.SizeOf(typeof(IntPtr)) == 8)
regKey = @"HKEY_LOCAL_MACHINE\Software" + @"\Wow6432Node" + regKey;
else
regKey = @"HKEY_LOCAL_MACHINE\Software" + regKey;
string valueName = "ControllerData_Session_" + etwSessionId.ToString(CultureInfo.InvariantCulture);
// we need to assert this permission for partial trust scenarios
(new RegistryPermission(RegistryPermissionAccess.Read, regKey)).Assert();
data = Microsoft.Win32.Registry.GetValue(regKey, valueName, null) as byte[];
if (data != null)
{
// We only used the persisted data from the registry for updates.
command = ControllerCommand.Update;
return true;
}
#endif
}
else
{
if (filterData->Ptr != 0 && 0 < filterData->Size && filterData->Size <= 1024)
{
data = new byte[filterData->Size];
Marshal.Copy((IntPtr)filterData->Ptr, data, 0, data.Length);
}
command = (ControllerCommand)filterData->Type;
return true;
}
command = ControllerCommand.Update;
return false;
}
internal unsafe int SetInformation(
ManifestEtw.EVENT_INFO_CLASS eventInfoClass,
IntPtr data,
uint dataSize)
{
int status = ManifestEtw.ERROR_NOT_SUPPORTED;
if (!m_setInformationMissing)
{
try
{
ManifestEtw.EventSetInformation(
m_regHandle,
eventInfoClass,
data,
dataSize);
}
catch (TypeLoadException)
{
m_setInformationMissing = true;
}
}
return status;
}
unsafe void EtwEnableCallBack(
ref System.Guid sourceId,
int controlCode,
byte setLevel,
ulong anyKeyword,
ulong allKeyword,
ManifestEtw.EVENT_FILTER_DESCRIPTOR* filterData,
IntPtr callbackContext
)
private unsafe uint EventRegister(ref Guid providerId, ManifestEtw.EtwEnableCallback enableCallback)
{
m_providerId = providerId;
m_etwCallback = enableCallback;
return ManifestEtw.EventRegister(ref providerId, enableCallback,
#if PROJECTN
IntPtr.Zero,
out m_regHandle);
#else
null,
ref m_regHandle);
#endif
}
