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#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 "serve-protocol.hh"
#include "length-prefixed-protocol-helper.hh"
namespace nix {
/* protocol-agnostic templates */
#define SERVE_USE_LENGTH_PREFIX_SERIALISER(TEMPLATE, T) \
TEMPLATE T ServeProto::Serialise< T >::read(const Store & store, ServeProto::ReadConn conn) \
{ \
return LengthPrefixedProtoHelper<ServeProto, T >::read(store, conn); \
} \
TEMPLATE void ServeProto::Serialise< T >::write(const Store & store, ServeProto::WriteConn conn, const T & t) \
{ \
LengthPrefixedProtoHelper<ServeProto, T >::write(store, conn, t); \
}
SERVE_USE_LENGTH_PREFIX_SERIALISER(template<typename T>, std::vector<T>)
SERVE_USE_LENGTH_PREFIX_SERIALISER(template<typename T>, std::set<T>)
SERVE_USE_LENGTH_PREFIX_SERIALISER(template<typename... Ts>, std::tuple<Ts...>)
#define COMMA_ ,
SERVE_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 ServeProto::Serialise
{
static T read(const Store & store, ServeProto::ReadConn conn)
{
return CommonProto::Serialise<T>::read(store,
CommonProto::ReadConn { .from = conn.from });
}
static void write(const Store & store, ServeProto::WriteConn conn, const T & t)
{
CommonProto::Serialise<T>::write(store,
CommonProto::WriteConn { .to = conn.to },
t);
}
};
/* protocol-specific templates */
}
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