public void ApplySetting([In] ref TRANSPORT_SETTING_ID settingId, [In] int lengthIn, [In] IntPtr valueIn,
out int lengthOut, out IntPtr valueOut)
{
if (!TransportSettingsId.Equals(settingId.Guid))
{
// This method is called from WinRT. The CLR will map the exception type to an HResult
// and discard any error message.
throw new NotSupportedException();
}
if (valueIn == IntPtr.Zero)
{
throw new ArgumentNullException("valueIn");
}
// SettingId GUID + valueIn (also a GUID)
byte[] settingsGuid = settingId.Guid.ToByteArray();
byte[] buffer = new byte[settingsGuid.Length + lengthIn];
settingsGuid.CopyTo(buffer, 0);
if (lengthIn > 0)
{
// Store it for use later during the request
Marshal.Copy(valueIn, buffer, settingsGuid.Length, lengthIn);
}
state.inputData = buffer;
lengthOut = 0;
valueOut = IntPtr.Zero;
}
public void QuerySetting([In] ref TRANSPORT_SETTING_ID settingId, [In] int lengthIn, [In] IntPtr valueIn,
out int lengthOut, out IntPtr valueOut)
{
if (!TransportSettingsId.Equals(settingId.Guid))
{
// This method is called from WinRT. The CLR will map the exception type to an HResult
// and discard any error message.
throw new NotSupportedException();
}
// Note that we ignore lengthIn and valueIn for this operation.
// It should be the same as that from ApplySetting so we'll just re-use those values.
// Wait until we've connected and set the socket option. If it fails then the request will be aborted.
// If it suceeds then we can assume that the socket is now push-enabled.
state.connectComplete.WaitOne();
byte[] result;
if (state.result != 0)
{
// This is how we report errors to NotificationChannel.WaitForPushEnabled().
// The CLR will unwrap the exception and return the error code.
throw new Win32Exception(state.result);
}
else if (state.outputData != null)
{
result = state.outputData;
}
else
{
result = BitConverter.GetBytes((int)RtcState.ControlChannelTriggerStatus.TransportDisconnected);
}
lengthOut = result.Length;
// COM memory marshal. It's the caller's responsibility to free the memory.
valueOut = Marshal.AllocCoTaskMem(lengthOut);
Marshal.Copy(result, 0, valueOut, lengthOut);
}
public void QuerySetting([In] ref TRANSPORT_SETTING_ID settingId, [In] int lengthIn, [In] IntPtr valueIn, out int lengthOut, out IntPtr valueOut)
{
}