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#pragma once
#include <forstio/io_codec/rpc.hpp>
#include <forstio/codec/data.hpp>
#include <forstio/codec/id_map.hpp>
#include <CL/sycl.hpp>
namespace saw {
namespace rmt {
struct Sycl {};
}
template<>
class remote<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,Encoding>* map_;
public:
/**
* Main constructor
*/
remote_data(const id<T>& id, id_map<T, Encoding>& map):
id_{id},
map_{&map}
{}
/**
* Request data asynchronously
*/
conveyor<data<T,Encoding>> on_receive(); /// Stopped here
};
template<typename T, uint64_t D>
class data<schema::Array<T,D>, encode::Native<rmt::Sycl>> {
private:
cl::sycl::buffer<typename native_data_type<T>::type, D> device_data_;
static_assert(D==1u, "For now we only support 1D Arrays");
public:
};
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<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> {
public:
using InterfaceCtxT = cl::sycl::queue*;
using InterfaceT = interface<Iface, Encoding, InterfaceCtxT>;
private:
/**
* Command queue for the sycl backend
*/
cl::sycl::queue cmd_queue_;
/**
* The interface including the relevant context class.
*/
interface<Iface, Encoding, InterfaceCtxT> cl_interface_;
/**
* Basic storage for response data.
*/
impl::rpc_id_map_helper<Iface, Encoding> storage_;
public:
rpc_server(interface<Iface, Encoding, InterfaceCtxT> 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 {dat, std::get<id_map<IdT, Encoding>>(storage_.maps)};
}
/**
* Rpc call
*/
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){
/**
* 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 schema_member_type<Name, Iface>::type::RequestT, Encoding>* > {
if(input.is_id()){
// storage_.maps
auto& inner_map = std::get<id_map<typename schema_member_type<Name, Iface>::type::RequestT, Encoding >> (storage_.maps);
auto eov = inner_map.find(input.get_id());
if(eov.is_error()){
return std::move(eov.get_error());
}
return eov.get_value();
} else {
return &input.get_data();
}
}();
if(eoinp.is_error()){
return std::move(eoinp.get_error());
}
auto& inp = *(eoinp.get_value());
auto eod = cl_interface_.template call<Name>(std::move(inp), &cmd_queue_);
if(eod.is_error()){
return std::move(eod.get_error());
}
/**
* Store returned data in rpc storage
*/
auto& val = eod.get_value();
auto& inner_map = std::get<id_map<typename schema_member_type<Name, Iface>::type::RequestT, Encoding >> (storage_.maps);
auto eoid = inner_map.insert(std::move(val));
if(eoid.is_error()){
return std::move(eoid.get_error());
}
return eoid.get_value();
}
};
template<>
struct remote_address<rmt::Sycl> {
private:
remote<rmt::Sycl>* ctx_;
SAW_FORBID_COPY(remote_address);
SAW_FORBID_MOVE(remote_address);
public:
remote_address(remote<rmt::Sycl>& r_ctx):
ctx_{&r_ctx}
{}
};
template<>
class remote<rmt::Sycl> {
private:
SAW_FORBID_COPY(remote);
SAW_FORBID_MOVE(remote);
public:
/**
* Default constructor
*/
remote(){}
/**
* For now we don't need to specify the location since
* we just create a default.
*/
conveyor<own<remote_address<rmt::Sycl>>> resolve_address(){
return heap<remote_address<rmt::Sycl>>(*this);
}
/**
* Spin up a rpc server
*/
template<typename Iface, typename Encoding>
rpc_server<Iface, Encoding, rmt::Sycl> listen(const remote_address<rmt::Sycl>&, typename rpc_server<Iface, Encoding, rmt::Sycl>::InterfaceT iface){
using RpcServerT = rpc_server<Iface, Encoding, rmt::Sycl>;
using InterfaceT = typename RpcServerT::InterfaceT;
return {std::move(iface)};
}
};
}
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