public static extern OCStackResult OCDoResource(out IntPtr handle,
OCMethod method,
[MarshalAs(UnmanagedType.LPStr)] string requestUri,
OCDevAddr destination,
IntPtr payload, //OCPayload payload,
OCConnectivityType connectivityType,
OCQualityOfService qos,
OCCallbackData cbData,
OCHeaderOption options,
byte numOptions);
private async Task <ClientResponse <Payload> > SendAsync(string resourceTypeName, Dictionary <string, object> data, OCMethod method)
{
var tcs = new TaskCompletionSource <ClientResponse <Payload> >();
var callbackData = new OCCallbackData();
OCClientResponseHandler handler = (context, handle, clientResponse) =>
{
GCHandle.FromIntPtr(context).Free();
if (clientResponse.result > OCStackResult.OC_STACK_RESOURCE_CHANGED)
{
tcs.SetException(new Exception("Resource returned error: " + clientResponse.result.ToString()));
}
else
{
tcs.SetResult(new ClientResponse <Payload>(clientResponse));
}
return(OCStackApplicationResult.OC_STACK_DELETE_TRANSACTION);
};
var gcHandle = GCHandle.Alloc(handler);
callbackData.cb = handler;
callbackData.context = GCHandle.ToIntPtr(gcHandle);
IntPtr payloadHandle = IntPtr.Zero;
if (resourceTypeName != null)
{
RepPayload payload = new RepPayload(data);
payload.SetUri(_resourceUri);
payload.Types.Add(resourceTypeName);
payloadHandle = payload.AsOCRepPayload();
}
var result = OCStack.OCDoResource(out _handle, method, _resourceUri, _address.OCDevAddr, payloadHandle, OCConnectivityType.CT_DEFAULT, OCQualityOfService.OC_LOW_QOS, callbackData, null, 0);
// if (payloadHandle != IntPtr.Zero)
// OCPayloadInterop.OCPayloadDestroy(payloadHandle);
OCStackException.ThrowIfError(result, "Failed to send to resource");
var response = await tcs.Task.ConfigureAwait(false);
return(response);
}