From da7878360b0b4c58af922b491f5d775a867b191a Mon Sep 17 00:00:00 2001
From: "Claudius \"keldu\" Holeksa" <mail@keldu.de>
Date: Mon, 19 Jan 2026 17:10:19 +0100
Subject: Moving the ghost layers

---
 default.nix            |  2 +-
 lib/core/c++/chunk.hpp |  3 +++
 lib/sycl/c++/data.hpp  | 25 +++++++++++++++----------
 3 files changed, 19 insertions(+), 11 deletions(-)

diff --git a/default.nix b/default.nix
index 1befac1..b41c5a8 100644
--- a/default.nix
+++ b/default.nix
@@ -39,7 +39,7 @@ let
 
 	forstio = (import ((builtins.fetchTarball {
 		url = "https://git.keldu.de/forstio-forstio/snapshot/master.tar.gz";
-		sha256 = "sha256:19050mb1j4qq9j9y24y0ffhlj997bzn4my2wiprsgml58azf600m";
+		sha256 = "sha256:1l305m2vsm4vxflip9ij9f8q7qbiy85k06kwqi7jwm0b1j23jrin";
 	}) + "/default.nix"){
 		inherit stdenv;
 		inherit clang-tools;
diff --git a/lib/core/c++/chunk.hpp b/lib/core/c++/chunk.hpp
index bfef358..38b567b 100644
--- a/lib/core/c++/chunk.hpp
+++ b/lib/core/c++/chunk.hpp
@@ -32,7 +32,10 @@ using SuperChunk = Array<ChunkSchema,Dim>;
 namespace saw {
 template<typename Sch, uint64_t Dim, uint64_t Side, uint64_t Ghost, typename Encode>
 class data<kel::lbm::sch::Chunk<Sch,Dim,Side,Ghost>,Encode> final {
+public:
+	using Schema = kel::lbm::sch::Chunk<Sch,Dim,Side,Ghost>;
 private:
+	data<Schema::InnerSchema, Encode> 
 public:
 };
 }
diff --git a/lib/sycl/c++/data.hpp b/lib/sycl/c++/data.hpp
index 67422e2..53a35bc 100644
--- a/lib/sycl/c++/data.hpp
+++ b/lib/sycl/c++/data.hpp
@@ -12,7 +12,7 @@ struct Sycl {
 
 namespace impl {
 template<typename Schema>
-struct struct_has_only_equal_dimension_array
+struct struct_has_only_equal_dimension_array{};
 }
 }
 }
@@ -37,9 +37,14 @@ public:
 		q_{nullptr}
 	{}
 
+	data(StorageT members__, kel::lbm::sycl::queue& q__):
+		members_{members__},
+		q_{&q__}
+	{}
+
 	~data(){
 		SAW_ASSERT(q_){
-			exit(-1);
+			return;
 		}
 		std::visit([this](auto arg){
 			if(not arg){
@@ -61,14 +66,8 @@ public:
 		SAW_ASSERT(ptr);
 		return *ptr;
 	}
-
-	void set_queue(kel::lbm::sycl::queue& q){
-		q_ = &q;
-	}
 };
 
-}
-
 namespace kel {
 namespace lbm {
 namespace impl {
@@ -80,9 +79,11 @@ struct sycl_malloc_struct_helper<sch::Struct<Members...>, Encode> final {
 	template<uint64_t i>
 	static saw::error_or<void> allocate_on_device_member(typename data<Sch,encode::Sycl<Encode>>::StorageT& storage, sycl::queue& q){
 		if constexpr (i < sizeof...(Members)){
+			using M = typename saw::parameter_pack_type<i,Members...>::type;
 			auto& ptr = std::get<i>(storage);
+			ptr = sycl::malloc_device<M::ValueType::InnerSchema>(,q);
 
-			return allocate_on_device_member<i+1u>(sycl_data,q);
+			return allocate_on_device_member<i+1u>(storage,q);
 		}
 		
 		return saw::make_void();
@@ -90,7 +91,11 @@ struct sycl_malloc_struct_helper<sch::Struct<Members...>, Encode> final {
 	
 	static saw::error_or<void> allocate_on_device(data<Sch,encode::Sycl<Encode>>& sycl_data, sycl::queue& q){
 		typename data<Sch,encode::Sycl<Encode>>::StorageT storage;
-		return allocate_on_device_member<0u>(storage,q);
+ 
+		auto eov = allocate_on_device_member<0u>(storage,q);
+		sycl_data = {storage, q};
+
+		return eov;
 	}
 };
 }
-- 
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