static Flow proxyToFlow(const Pothos::Proxy &flowProxy)
{
Flow flow;
flow.src = proxyToPort(flowProxy.get("src"));
flow.dst = proxyToPort(flowProxy.get("dst"));
return flow;
}
static Port proxyToPort(const Pothos::Proxy &portProxy)
{
Port port;
port.name = portProxy.call<std::string>("get:name");
port.obj = portProxy.get("obj");
port.uid = portProxy.call<std::string>("get:uid");
port.objName = portProxy.call<std::string>("get:objName");
return port;
}
static Pothos::BufferChunk convertNumpyArrayToBufferChunk(const Pothos::Proxy &npArray)
{
//extract shape and data type information
const auto shape = npArray.get<Pothos::ProxyVector>("shape");
const size_t numBytes = npArray.get<size_t>("nbytes");
const size_t dimension = (shape.size() > 1)? shape.at(1).convert<size_t>() : 1;
const auto dtypeName = npArray.get("dtype").get<std::string>("name");
const Pothos::DType dtype(dtypeName, dimension);
const size_t address = npArray.get("__array_interface__").call("get", "data").call("__getitem__", 0);
//create a shared buffer that holds the numpy array
auto sharedBuff = Pothos::SharedBuffer(address, numBytes, npArray.getHandle());
//now create a buffer chunk of that shared buffer with matching dtype
auto chunk = Pothos::BufferChunk(sharedBuff);
chunk.dtype = dtype;
return chunk;
}