nix-super/src/libstore/worker-protocol-impl.hh
John Ericson dde1d86338 Restrict some code to StoreDirConfig
- part of eval cache
 - part of derivations
 - derived path
 - store path with outputs
 - serializers
2023-11-04 19:05:36 -04:00

59 lines
1.7 KiB
C++

#pragma once
/**
* @file
*
* Template implementations (as opposed to mere declarations).
*
* This file is an exmample of the "impl.hh" pattern. See the
* contributing guide.
*/
#include "worker-protocol.hh"
#include "length-prefixed-protocol-helper.hh"
namespace nix {
/* protocol-agnostic templates */
#define WORKER_USE_LENGTH_PREFIX_SERIALISER(TEMPLATE, T) \
TEMPLATE T WorkerProto::Serialise< T >::read(const StoreDirConfig & store, WorkerProto::ReadConn conn) \
{ \
return LengthPrefixedProtoHelper<WorkerProto, T >::read(store, conn); \
} \
TEMPLATE void WorkerProto::Serialise< T >::write(const StoreDirConfig & store, WorkerProto::WriteConn conn, const T & t) \
{ \
LengthPrefixedProtoHelper<WorkerProto, T >::write(store, conn, t); \
}
WORKER_USE_LENGTH_PREFIX_SERIALISER(template<typename T>, std::vector<T>)
WORKER_USE_LENGTH_PREFIX_SERIALISER(template<typename T>, std::set<T>)
WORKER_USE_LENGTH_PREFIX_SERIALISER(template<typename... Ts>, std::tuple<Ts...>)
#define COMMA_ ,
WORKER_USE_LENGTH_PREFIX_SERIALISER(
template<typename K COMMA_ typename V>,
std::map<K COMMA_ V>)
#undef COMMA_
/**
* Use `CommonProto` where possible.
*/
template<typename T>
struct WorkerProto::Serialise
{
static T read(const StoreDirConfig & store, WorkerProto::ReadConn conn)
{
return CommonProto::Serialise<T>::read(store,
CommonProto::ReadConn { .from = conn.from });
}
static void write(const StoreDirConfig & store, WorkerProto::WriteConn conn, const T & t)
{
CommonProto::Serialise<T>::write(store,
CommonProto::WriteConn { .to = conn.to },
t);
}
};
/* protocol-specific templates */
}