From 7479b39379bcf79dfa73a61643538832c2571c49 Mon Sep 17 00:00:00 2001
From: "Claudius \"keldu\" Holeksa" <mail@keldu.de>
Date: Fri, 17 May 2024 18:14:41 +0200
Subject: Trying to get rpc interaction with iface working

---
 modules/remote-sycl/c++/remote.hpp | 87 ++++++++++++++++++++++++++++++++++++--
 1 file changed, 84 insertions(+), 3 deletions(-)

(limited to 'modules/remote-sycl/c++/remote.hpp')

diff --git a/modules/remote-sycl/c++/remote.hpp b/modules/remote-sycl/c++/remote.hpp
index 0d10ba7..70c8032 100644
--- a/modules/remote-sycl/c++/remote.hpp
+++ b/modules/remote-sycl/c++/remote.hpp
@@ -1,6 +1,8 @@
 #pragma once
 
 #include <forstio/io_codec/rpc.hpp>
+#include <forstio/codec/data.hpp>
+#include <forstio/id_map.hpp>
 
 #include <CL/sycl.hpp>
 
@@ -12,12 +14,91 @@ struct Sycl {};
 template<>
 class remote<rmt::Sycl>;
 
-template<typename Iface, typename Encode>
-class rpc_server<Iface, Encode, rmt::Sycl> {
+/**
+ * Remote data class for the Sycl backend.
+ */
+template<typename T, typename Encoding>
+class remote_data<T, Encoding, rmt::Sycl> {
 private:
+	id<T> id_;
+	id_map<T>* map_;
+public:
+	/**
+	 * Main constructor
+	 */
+	remote_data(const id<T>& id, id_map<data<T, Encoding>>& map):
+		id_{id},
+		map_{&map}
+	{}
+
+	/**
+	 * Request data asynchronously
+	 */
+	conveyor<data<T,Encoding>> on_receive(); /// Stopped here
+};
+namespace impl {
+
+template<typename Iface, typename Encoding>
+struct rpc_id_map_helper {
+	static_assert(always_false<Iface, Encoding>, "Only support Interface schema types.");
+};
+
+template<typename... Members, typename Encoding>
+struct rpc_id_map_helper<schema::Interface<Members...>, Encoding> {
+	std::tuple<id_map<data<typename Members::ValueType::ResponseT, Encoding>>...> maps;
+};
+}
+/**
+ * Rpc Server class for the Sycl backend.
+ */
+template<typename Iface, typename Encoding>
+class rpc_server<Iface, Encoding, rmt::Sycl> {
+private:
+	using IfaceCtx = cl::sycl::queue*;
+	/**
+	 * Command queue for the sycl backend
+	 */
 	cl::sycl::queue cmd_queue_;
+
+	/**
+	 * The interface including the relevant context class.
+	 */
+	interface<Iface, Encoding, IfaceCtx> cl_interface_;
+
+	/**
+	 *
+	 */
+	impl::rpc_id_map_helper<Iface, Encoding> storage_;
 public:
+	rpc_server(interface<Iface, Encoding, IfaceCtx> cl_iface):
+		cmd_queue_{},
+		cl_interface_{std::move(cl_iface)},
+		storage_{}
+	{}
 
+	template<typename IdT>
+	remote_data<IdT, Encoding, rmt::Sycl> request_data(id<IdT> dat){
+		return {data, std::get<id_map<data<IdT, Encoding>>>(storage_.maps)};
+	}
+
+	/**
+	 * rpc call
+	 */
+	template<string_literal Name>
+	error_or<
+		id<
+			typename schema_member_type<Name, Iface>::type::ValueType::ResponseT
+		>
+	> call(data_or_id<typename schema_member_type<Name, Iface>::type::ValueType::RequestT, Encoding> input){
+
+		auto eod = cmd_queue_.template call<Name>(std::move(input), &cmd_queue_);
+
+		if(eod.is_error()){
+			return std::move(eod.get_error());
+		}
+
+		return id<typename schema_member_type<Name, Iface>::type::ValueType::ResponseT>{};
+	}
 };
 
 
@@ -59,7 +140,7 @@ public:
 	 */
 	template<typename Iface, typename Encoding>
 	conveyor<rpc_server<Iface, Encoding, rmt::Sycl>> listen(const remote_address<rmt::Sycl>&){
-		
+		return {};
 	}
 };
 
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