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#pragma once
#include "common.hpp"
#include "remote.hpp"
#include "data.hpp"
#include "device.hpp"
#include "transfer.hpp"
namespace saw {
/**
* Remote data class for the Sycl backend.
*/
template<typename T, typename Encoding, typename Storage>
class remote_data<T, Encoding, Storage, rmt::Sycl> final {
private:
/**
* An identifier to the data being held on the remote
*/
id<T> data_id_;
/**
* The sycl queue object
*/
cl::sycl::queue* queue_;
public:
/**
* Main constructor
*/
remote_data(id<T> data_id__, cl::sycl::queue& queue__):
data_id_{data_id__},
queue_{&queue__}
{}
/**
* Destructor specifically designed to deallocate on the device.
*/
~remote_data(){}
SAW_FORBID_COPY(remote_data);
SAW_FORBID_MOVE(remote_data);
/**
remote_data(const id<T>& id, id_map<T, Encoding, rmt::Sycl>& map, cl::sycl::queue& queue__):
id_{id},
map_{&map}
{}
*/
/**
* Wait for the data
*/
error_or<data<T,Encoding,Storage>> wait(){
return make_error<err::not_implemented>();
}
/**
* Request data asynchronously
*/
// conveyor<data<T,Encoding,Storage>> on_receive(); /// Stopped here
};
/**
* Meant to be a helper object which holds the allocated data on the sycl side
*/
//template<typename Schema, typename Encoding, typename Backend>
//class device_data;
/**
* This class helps in regards to the ownership on the server side
template<typename Schema, typename Encoding>
class device_data<Schema, Encoding, rmt::Sycl> {
private:
data<Schema,Encoding,storage::Default>* device_data_;
cl::sycl::queue* queue_;
public:
device_data(data<Schema,Encoding,storage::Default>& device_data__, cl::sycl::queue& queue__):
device_data_{&device_data__},
queue_{&queue__}
{}
~device_data(){
if(device_data_){
cl::sycl::free(device_data_,queue_);
device_data_ = nullptr;
}
}
SAW_FORBID_COPY(device_data);
SAW_FORBID_MOVE(device_data);
};
*/
}
// Maybe a helper impl tmpl file?
namespace saw {
namespace impl {
template<typename Func>
struct rpc_func_type_helper;
template<typename Response, typename Request>
struct rpc_func_type_helper<schema::Function<Request, Response>>{
using type = tmpl_group<Response, Request>;
};
template<typename Iface>
struct rpc_iface_type_helper {
using type = tmpl_group<>;
};
template<typename Func, string_literal K, typename... Functions, string_literal... Keys>
struct rpc_iface_type_helper<schema::Interface<schema::Member<Func,K>,schema::Member<Functions,Keys>...>> {
using inner_type = typename rpc_func_type_helper<Func>::type;
using type = typename tmpl_concat<inner_type, typename rpc_iface_type_helper<schema::Interface<schema::Member<Functions,Keys>...>>::type>::type;
};
}
/**
* Rpc Client class for the Sycl backend.
*/
template<typename Iface, typename Encoding>
class rpc_client<Iface, Encoding, rmt::Sycl> {
public:
private:
/**
* Server this client is tied to
*/
rpc_server<Iface, Encoding, rmt::Sycl>* srv_;
/**
* TransferClient created from the internal RPC data server
*/
data_client<typename impl::rpc_iface_type_helper<Iface>::type, Encoding, rmt::Sycl> data_client_;
/**
* Generated some sort of id for the request.
*/
public:
rpc_client(rpc_server<Iface, Encoding, rmt::Sycl>& srv):
srv_{&srv},
data_client_{srv_->data_server}
{}
/**
* Rpc call
*/
template<string_literal Name>
error_or<
id<
typename schema_member_type<Name, Iface>::type::ResponseT
>
> call(const data_or_id<typename schema_member_type<Name, Iface>::type::RequestT, Encoding>& input){
auto next_free_id = srv_->template next_free_id<typename schema_member_type<Name, Iface>::type::ResponseT>();
return srv_->template call<Name, Storage>(input, next_free_id);
}
};
/**
* Rpc Server class for the Sycl backend.
*/
template<typename Iface, typename Encoding>
class rpc_server<Iface, Encoding, rmt::Sycl> {
public:
using InterfaceCtxT = cl::sycl::queue*;
using InterfaceT = interface<Iface, encode::Sycl<Encoding>, InterfaceCtxT>;
private:
/**
* Device instance enabling the use of the remote device.
*/
our<device<rmt::Sycl>> device_;
using DataServerT = data_server<typename impl::rpc_iface_type_helper<Iface>::type, Encoding, rmt::Sycl>;
/**
* Data server storing the relevant data
*/
DataServerT* data_server_;
/**
* The interface including the relevant context class.
*/
interface<Iface, Encoding, storage::Default, InterfaceCtxT> cl_interface_;
public:
/**
* Main constructor
*/
rpc_server(our<device<rmt::Sycl>> dev__, DataServerT& data_server__, InterfaceT cl_iface):
device_{std::move(dev__)},
data_server_{&data_server__},
cl_interface_{std::move(cl_iface)}
{}
/**
* Ask which id the server prefers as the next one. Only available for fast requests on no roundtrip setups.
*/
/**
template<typename T>
id<T> next_free_id() const {
return std::get<id_map<T,Encoding,rmt::Sycl>>(storage_.maps).next_free_id();
}
*/
/**
template<typename IdT, typename Storage>
remote_data<IdT, Encoding, Storage, rmt::Sycl> request_data(id<IdT> dat_id){
return {dat_id, std::get<id_map<IdT,Encoding,rmt::Sycl>>(storage_.maps), device_->get_handle()};
}
*/
/**
* Rpc call based on the name
*/
template<string_literal Name>
error_or<
id<
typename schema_member_type<Name, Iface>::type::ResponseT
>
> call(data_or_id<typename schema_member_type<Name, Iface>::type::RequestT, Encoding> input, id<typename schema_member_type<Name,Iface>::type::ResponseT> rpc_id){
using FuncT = typename schema_member_type<Name, Iface>::type;
/**
* Object needed if and only if the provided data type is not an id
*/
own<data<typename FuncT::RequestT, encode::Sycl<Encoding>>> dev_tmp_inp = nullptr;
/**
* First check if it's data or an id.
* If it's an id, check if it's registered within the storage and retrieve it.
*/
auto eoinp = [&,this]() -> error_or<data<typename FuncT::RequestT, encode::Sycl<Encoding>>* > {
if(input.is_id()){
// storage_.maps
auto eov = data_server_->template find<typename FuncT::RequestT>(input.get_id());
if(eov.is_error()){
return std::move(eov.get_error());
}
return eov.get_value();
} else {
auto& client_data = input.get_data();
auto eov = device_->template copy_to_device(client_data);
if(eov.is_error()){
return std::move(eov.get_error());
}
auto& val = eov.get_value();
dev_tmp_inp = heap<data<typename FuncT::RequestT, encode::Sycl<Encoding>>>(std::move(val));
device_->get_handle().wait();
return dev_tmp_inp.get();
}
}();
if(eoinp.is_error()){
return std::move(eoinp.get_error());
}
auto& inp = *(eoinp.get_value());
auto eod = cl_interface_.template call<Name>(inp, &(device_->get_handle()));
if(eod.is_error()){
return std::move(eod.get_error());
}
auto& val = eod.get_value();
/**
* Store returned data in rpc storage
*/
auto eoid = data_server_->template insert<typename schema_member_type<Name, Iface>::type::RequestT>(std::move(val), rpc_id);
if(eoid.is_error()){
return std::move(eoid.get_error());
}
return rpc_id;
}
};
}
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