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serialization: do any N-tuple

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jeffro256 2024-03-19 14:49:36 -05:00
parent c8214782fb
commit d6609b83d6
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2 changed files with 150 additions and 106 deletions
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164
src/serialization/tuple.h
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@ -1,4 +1,4 @@
// Copyright (c) 2014-2023, The Monero Project // Copyright (c) 2014-2024, The Monero Project
// //
// All rights reserved. // All rights reserved.
// //
@ -29,7 +29,7 @@
// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers // Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
#pragma once #pragma once
#include <memory> #include <tuple>
#include "serialization.h" #include "serialization.h"
namespace serialization namespace serialization
@ -51,119 +51,71 @@ namespace serialization
} }
} }
template <template <bool> class Archive, class E0, class E1, class E2> template <size_t I, bool BackwardsCompat, bool W, template <bool> class Archive, typename... Ts>
inline bool do_serialize(Archive<false>& ar, std::tuple<E0,E1,E2>& p) bool do_serialize_tuple_nth(Archive<W>& ar, std::tuple<Ts...>& v)
{ {
size_t cnt; static constexpr const size_t tuple_size = std::tuple_size<std::tuple<Ts...>>();
ar.begin_array(cnt); static_assert(I <= tuple_size, "bad call");
if (!ar.good())
return false;
if (cnt != 3)
return false;
if (!::serialization::detail::serialize_tuple_element(ar, std::get<0>(p))) if constexpr (I == 0)
return false; {
if (!ar.good()) // If BackwardsCompat is true, we serialize the size of 3-tuples and 4-tuples
return false; if constexpr (BackwardsCompat && (tuple_size == 3 || tuple_size == 4))
ar.delimit_array(); {
if (!::serialization::detail::serialize_tuple_element(ar, std::get<1>(p))) size_t cnt = tuple_size;
return false; ar.begin_array(cnt);
if (!ar.good()) if (cnt != tuple_size)
return false; return false;
ar.delimit_array(); }
if (!::serialization::detail::serialize_tuple_element(ar, std::get<2>(p))) else
return false; {
if (!ar.good()) ar.begin_array();
return false; }
}
else if constexpr (I < tuple_size)
{
ar.delimit_array();
}
ar.end_array(); if constexpr (I == tuple_size)
return true; {
ar.end_array();
return ar.good();
}
else
{
if (!::serialization::detail::serialize_tuple_element(ar, std::get<I>(v))
|| !ar.good())
return false;
return do_serialize_tuple_nth<I + 1, BackwardsCompat>(ar, v);
}
} }
template <template <bool> class Archive, class E0, class E1, class E2> template <bool BackwardsCompat, bool W, template <bool> class Archive, typename... Ts>
inline bool do_serialize(Archive<true>& ar, std::tuple<E0,E1,E2>& p) bool do_serialize_tuple(Archive<W>& ar, std::tuple<Ts...>& v)
{ {
ar.begin_array(3); return do_serialize_tuple_nth<0, BackwardsCompat>(ar, v);
if (!ar.good())
return false;
if(!::serialization::detail::serialize_tuple_element(ar, std::get<0>(p)))
return false;
if (!ar.good())
return false;
ar.delimit_array();
if(!::serialization::detail::serialize_tuple_element(ar, std::get<1>(p)))
return false;
if (!ar.good())
return false;
ar.delimit_array();
if(!::serialization::detail::serialize_tuple_element(ar, std::get<2>(p)))
return false;
if (!ar.good())
return false;
ar.end_array();
return true;
} }
template <template <bool> class Archive, class E0, class E1, class E2, class E3> template <bool W, template <bool> class Archive, typename... Ts>
inline bool do_serialize(Archive<false>& ar, std::tuple<E0,E1,E2,E3>& p) bool do_serialize(Archive<W>& ar, std::tuple<Ts...>& v)
{ {
size_t cnt; return do_serialize_tuple<true>(ar, v);
ar.begin_array(cnt);
if (!ar.good())
return false;
if (cnt != 4)
return false;
if (!::serialization::detail::serialize_tuple_element(ar, std::get<0>(p)))
return false;
if (!ar.good())
return false;
ar.delimit_array();
if (!::serialization::detail::serialize_tuple_element(ar, std::get<1>(p)))
return false;
if (!ar.good())
return false;
ar.delimit_array();
if (!::serialization::detail::serialize_tuple_element(ar, std::get<2>(p)))
return false;
if (!ar.good())
return false;
ar.delimit_array();
if (!::serialization::detail::serialize_tuple_element(ar, std::get<3>(p)))
return false;
if (!ar.good())
return false;
ar.end_array();
return true;
} }
template <template <bool> class Archive, class E0, class E1, class E2, class E3> #define TUPLE_COMPACT_FIELDS(v) \
inline bool do_serialize(Archive<true>& ar, std::tuple<E0,E1,E2,E3>& p) do { \
{ if (!do_serialize_tuple<false>(ar, v) || !ar.good()) \
ar.begin_array(4); return false; \
if (!ar.good()) } while (0);
return false;
if(!::serialization::detail::serialize_tuple_element(ar, std::get<0>(p)))
return false;
if (!ar.good())
return false;
ar.delimit_array();
if(!::serialization::detail::serialize_tuple_element(ar, std::get<1>(p)))
return false;
if (!ar.good())
return false;
ar.delimit_array();
if(!::serialization::detail::serialize_tuple_element(ar, std::get<2>(p)))
return false;
if (!ar.good())
return false;
ar.delimit_array();
if(!::serialization::detail::serialize_tuple_element(ar, std::get<3>(p)))
return false;
if (!ar.good())
return false;
ar.end_array();
return true;
}
#define TUPLE_COMPACT_FIELD_N(t, v) \
do { \
ar.tag(t); \
TUPLE_COMPACT_FIELDS(v); \
} while (0);
#define TUPLE_COMPACT_FIELD(f) TUPLE_COMPACT_FIELD_N(#f, f)
#define TUPLE_COMPACT_FIELD_F(f) TUPLE_COMPACT_FIELD_N(#f, v.f)

92
tests/unit_tests/serialization.cpp
View File

@ -56,6 +56,11 @@ struct Struct
int32_t a; int32_t a;
int32_t b; int32_t b;
char blob[8]; char blob[8];
bool operator==(const Struct &other) const
{
return a == other.a && b == other.b && 0 == memcmp(blob, other.blob, sizeof(blob));
}
}; };
template <class Archive> template <class Archive>
@ -1207,3 +1212,90 @@ TEST(Serialization, adl_free_function)
const std::string expected = "{\"custom_fieldname\": " + std::to_string(msg.size()) + '"' + epee::string_tools::buff_to_hex_nodelimer(msg) + "\"}"; const std::string expected = "{\"custom_fieldname\": " + std::to_string(msg.size()) + '"' + epee::string_tools::buff_to_hex_nodelimer(msg) + "\"}";
EXPECT_EQ(expected, ss.str()); EXPECT_EQ(expected, ss.str());
} }
using Tuple3 = std::tuple<uint16_t, std::string, uint64_t>;
using Tuple4 = std::tuple<int32_t, std::string, uint64_t, Struct>;
TEST(Serialization, tuple_3_4_backwards_compatibility)
{
std::string serialized;
////////////////////////////////////////
Tuple3 t3{1876, "Hullabaloo", 1963};
EXPECT_TRUE(::serialization::dump_binary(t3, serialized));
EXPECT_EQ("0354070a48756c6c6162616c6f6fab0f",
epee::string_tools::buff_to_hex_nodelimer(serialized));
Tuple3 t3_recovered;
EXPECT_TRUE(::serialization::parse_binary(serialized, t3_recovered));
EXPECT_EQ(t3, t3_recovered);
/////////////////////////////////////////
Tuple4 t4{1999, "Caneck Caneck", (uint64_t)-1, {20229, 242, {1, 1, 2, 3, 5, 8, 13, 21}}};
EXPECT_TRUE(::serialization::dump_binary(t4, serialized));
EXPECT_EQ("04cf0700000d43616e65636b2043616e65636bffffffffffffffffff01054f0000f20000000101020305080d15",
epee::string_tools::buff_to_hex_nodelimer(serialized));
Tuple4 t4_recovered;
EXPECT_TRUE(::serialization::parse_binary(serialized, t4_recovered));
EXPECT_EQ(t4, t4_recovered);
}
struct Tupler
{
std::tuple<> t0;
std::tuple<int8_t> t1;
std::tuple<uint8_t, int16_t> t2;
Tuple3 t3_backcompat;
Tuple3 t3_compact;
Tuple4 t4_backcompat;
Tuple4 t4_compact;
std::tuple<uint32_t, std::string, bool, int64_t, Struct> t5;
BEGIN_SERIALIZE_OBJECT()
FIELD(t0)
FIELD(t1)
FIELD(t2)
FIELD(t3_backcompat)
TUPLE_COMPACT_FIELD(t3_compact)
FIELD(t4_backcompat)
TUPLE_COMPACT_FIELD(t4_compact)
TUPLE_COMPACT_FIELD(t5)
END_SERIALIZE()
};
bool operator==(const Tupler &a, const Tupler &b)
{
return a.t0 == b.t0 && a.t1 == b.t1 && a.t2 == b.t2 && a.t3_backcompat == b.t3_backcompat &&
a.t3_compact == b.t3_compact && a.t4_backcompat == b.t4_backcompat && a.t5 == b.t5;
}
TEST(Serialization, tuple_many_tuples)
{
Tupler tupler{
{},
{69},
{42, 420},
{1876, "Hullabaloo", 1963},
{1876, "Hullabaloo", 1963},
{1999, "Caneck Caneck", (uint64_t)-1, {20229, 242, {1, 1, 2, 3, 5, 8, 13, 21}}},
{1999, "Caneck Caneck", (uint64_t)-1, {20229, 242, {1, 1, 2, 3, 5, 8, 13, 21}}},
{72982, "He is now rising from affluence to poverty.", false, 256,
{
13, 37, { 1, 1, 1, 2, 3, 7, 11, 26 }
}
}
};
std::string serialized;
EXPECT_TRUE(::serialization::dump_binary(tupler, serialized));
Tupler tupler_recovered;
EXPECT_TRUE(::serialization::parse_binary(serialized, tupler_recovered));
EXPECT_EQ(tupler, tupler_recovered);
}