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Squashed 'src/ipc/libmultiprocess/' content from commit 35944ffd23fa

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git-subtree-dir: src/ipc/libmultiprocess
git-subtree-split: 35944ffd23fa26652b82210351d50e896ce16c8f
This commit is contained in:
Ryan Ofsky
2025-04-02 21:41:16 +08:00
commit a2f28e4be9
60 changed files with 5878 additions and 0 deletions
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45
include/mp/type-tuple.h Normal file
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// Copyright (c) 2025 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef MP_PROXY_TYPE_TUPLE_H
#define MP_PROXY_TYPE_TUPLE_H
#include <mp/util.h>
namespace mp {
// TODO: Should generalize this to work with arbitrary length tuples, not just length 2-tuples.
template <typename KeyLocalType, typename ValueLocalType, typename Value, typename Output>
void CustomBuildField(TypeList<std::tuple<KeyLocalType, ValueLocalType>>,
Priority<1>,
InvokeContext& invoke_context,
Value&& value,
Output&& output)
{
auto pair = output.init();
using Accessors = typename ProxyStruct<typename decltype(pair)::Builds>::Accessors;
BuildField(TypeList<KeyLocalType>(), invoke_context, Make<StructField, std::tuple_element_t<0, Accessors>>(pair), std::get<0>(value));
BuildField(TypeList<ValueLocalType>(), invoke_context, Make<StructField, std::tuple_element_t<1, Accessors>>(pair), std::get<1>(value));
}
// TODO: Should generalize this to work with arbitrary length tuples, not just length 2-tuples.
template <typename KeyLocalType, typename ValueLocalType, typename Input, typename ReadDest>
decltype(auto) CustomReadField(TypeList<std::tuple<KeyLocalType, ValueLocalType>>,
Priority<1>,
InvokeContext& invoke_context,
Input&& input,
ReadDest&& read_dest)
{
return read_dest.update([&](auto& value) {
const auto& pair = input.get();
using Struct = ProxyStruct<typename Decay<decltype(pair)>::Reads>;
using Accessors = typename Struct::Accessors;
ReadField(TypeList<KeyLocalType>(), invoke_context, Make<StructField, std::tuple_element_t<0, Accessors>>(pair),
ReadDestUpdate(std::get<0>(value)));
ReadField(TypeList<ValueLocalType>(), invoke_context, Make<StructField, std::tuple_element_t<1, Accessors>>(pair),
ReadDestUpdate(std::get<1>(value)));
});
}
} // namespace mp
#endif // MP_PROXY_TYPE_TUPLE_H