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-rw-r--r--src/serialization/binary_archive.h90
-rw-r--r--src/serialization/binary_utils.h3
-rw-r--r--src/serialization/container.h10
-rw-r--r--src/serialization/crypto.h6
-rw-r--r--src/serialization/debug_archive.h1
-rw-r--r--src/serialization/difficulty_type.h8
-rw-r--r--src/serialization/json_archive.h7
-rw-r--r--src/serialization/pair.h12
-rw-r--r--src/serialization/serialization.h36
-rw-r--r--src/serialization/string.h2
-rw-r--r--src/serialization/variant.h8
11 files changed, 94 insertions, 89 deletions
diff --git a/src/serialization/binary_archive.h b/src/serialization/binary_archive.h
index 49ca8aa57..acda70039 100644
--- a/src/serialization/binary_archive.h
+++ b/src/serialization/binary_archive.h
@@ -36,9 +36,11 @@
#include <cassert>
#include <iostream>
#include <iterator>
+#include <boost/endian/conversion.hpp>
#include <boost/type_traits/make_unsigned.hpp>
#include "common/varint.h"
+#include "span.h"
#include "warnings.h"
/* I have no clue what these lines means */
@@ -55,16 +57,15 @@ DISABLE_VS_WARNINGS(4244)
* purpse is to define the functions used for the binary_archive. Its
* a header, basically. I think it was declared simply to save typing...
*/
-template <class Stream, bool IsSaving>
+template <bool IsSaving>
struct binary_archive_base
{
- typedef Stream stream_type;
- typedef binary_archive_base<Stream, IsSaving> base_type;
+ typedef binary_archive_base<IsSaving> base_type;
typedef boost::mpl::bool_<IsSaving> is_saving;
typedef uint8_t variant_tag_type;
- explicit binary_archive_base(stream_type &s) : stream_(s) { }
+ explicit binary_archive_base() { }
/* definition of standard API functions */
void tag(const char *) { }
@@ -72,12 +73,6 @@ struct binary_archive_base
void end_object() { }
void begin_variant() { }
void end_variant() { }
- /* I just want to leave a comment saying how this line really shows
- flaws in the ownership model of many OOP languages, that is all. */
- stream_type &stream() { return stream_; }
-
-protected:
- stream_type &stream_;
};
/* \struct binary_archive
@@ -95,15 +90,18 @@ struct binary_archive;
template <>
-struct binary_archive<false> : public binary_archive_base<std::istream, false>
+struct binary_archive<false> : public binary_archive_base<false>
{
+ explicit binary_archive(epee::span<const std::uint8_t> s)
+ : base_type(), bytes_(s), begin_(s.begin()), good_(true), varint_bug_backward_compatibility_(false)
+ {}
- explicit binary_archive(stream_type &s) : base_type(s), varint_bug_backward_compatibility_(false) {
- stream_type::pos_type pos = stream_.tellg();
- stream_.seekg(0, std::ios_base::end);
- eof_pos_ = stream_.tellg();
- stream_.seekg(pos);
- }
+ bool good() const noexcept { return good_; }
+ void set_fail() noexcept { good_ = false; }
+
+ //! If implementing as `std::istream`, reset stream error state after `peek()` call.
+ bool eof() const noexcept { return bytes_.empty(); }
+ std::size_t getpos() const noexcept { return bytes_.begin() - begin_; }
template <class T>
void serialize_int(T &v)
@@ -116,24 +114,24 @@ struct binary_archive<false> : public binary_archive_base<std::istream, false>
* \brief serializes an unsigned integer
*/
template <class T>
- void serialize_uint(T &v, size_t width = sizeof(T))
+ void serialize_uint(T &v)
{
- T ret = 0;
- unsigned shift = 0;
- for (size_t i = 0; i < width; i++) {
- //std::cerr << "tell: " << stream_.tellg() << " value: " << ret << std::endl;
- char c;
- stream_.get(c);
- T b = (unsigned char)c;
- ret += (b << shift); // can this be changed to OR, i think it can.
- shift += 8;
+ const std::size_t actual = bytes_.remove_prefix(sizeof(T));
+ good_ &= (actual == sizeof(T));
+ if (actual == sizeof(T))
+ {
+ std::memcpy(std::addressof(v), bytes_.data() - sizeof(T), sizeof(T));
+ boost::endian::little_to_native_inplace(v); // epee isn't templated
}
- v = ret;
+ else
+ v = 0; // ensures initialization
}
void serialize_blob(void *buf, size_t len, const char *delimiter="")
{
- stream_.read((char *)buf, len);
+ const std::size_t actual = bytes_.remove_prefix(len);
+ good_ &= (len == actual);
+ std::memcpy(buf, bytes_.data() - actual, actual);
}
template <class T>
@@ -145,9 +143,11 @@ struct binary_archive<false> : public binary_archive_base<std::istream, false>
template <class T>
void serialize_uvarint(T &v)
{
- typedef std::istreambuf_iterator<char> it;
- if (tools::read_varint(it(stream_), it(), v) < 0)
- stream_.setstate(std::ios_base::failbit);
+ auto current = bytes_.cbegin();
+ auto end = bytes_.cend();
+ good_ &= (0 <= tools::read_varint(current, end, v));
+ current = std::min(current, bytes_.cend());
+ bytes_ = {current, std::size_t(bytes_.cend() - current)};
}
void begin_array(size_t &s)
@@ -166,26 +166,26 @@ struct binary_archive<false> : public binary_archive_base<std::istream, false>
serialize_int(t);
}
- size_t remaining_bytes() {
- if (!stream_.good())
- return 0;
- //std::cerr << "tell: " << stream_.tellg() << std::endl;
- assert(stream_.tellg() <= eof_pos_);
- return eof_pos_ - stream_.tellg();
- }
-
+ size_t remaining_bytes() const noexcept { return good() ? bytes_.size() : 0; }
void enable_varint_bug_backward_compatibility() { varint_bug_backward_compatibility_ = true; }
bool varint_bug_backward_compatibility_enabled() const { return varint_bug_backward_compatibility_; }
-
protected:
- std::streamoff eof_pos_;
+ epee::span<const std::uint8_t> bytes_;
+ std::uint8_t const* const begin_;
+ bool good_;
bool varint_bug_backward_compatibility_;
};
template <>
-struct binary_archive<true> : public binary_archive_base<std::ostream, true>
+struct binary_archive<true> : public binary_archive_base<true>
{
- explicit binary_archive(stream_type &s) : base_type(s) { }
+ typedef std::ostream stream_type;
+ explicit binary_archive(stream_type &s) : base_type(), stream_(s) { }
+
+ bool good() const { return stream_.good(); }
+ void set_fail() { stream_.setstate(std::ios::failbit); }
+
+ std::streampos getpos() const { return stream_.tellp(); }
template <class T>
void serialize_int(T v)
@@ -234,6 +234,8 @@ struct binary_archive<true> : public binary_archive_base<std::ostream, true>
}
bool varint_bug_backward_compatibility_enabled() const { return false; }
+protected:
+ stream_type& stream_;
};
POP_WARNINGS
diff --git a/src/serialization/binary_utils.h b/src/serialization/binary_utils.h
index 8635585af..8444f220e 100644
--- a/src/serialization/binary_utils.h
+++ b/src/serialization/binary_utils.h
@@ -39,8 +39,7 @@ namespace serialization {
template <class T>
bool parse_binary(const std::string &blob, T &v)
{
- std::istringstream istr(blob);
- binary_archive<false> iar(istr);
+ binary_archive<false> iar{epee::strspan<std::uint8_t>(blob)};
return ::serialization::serialize(iar, v);
}
diff --git a/src/serialization/container.h b/src/serialization/container.h
index a4997c8ae..77681ec93 100644
--- a/src/serialization/container.h
+++ b/src/serialization/container.h
@@ -67,13 +67,13 @@ bool do_serialize_container(Archive<false> &ar, C &v)
{
size_t cnt;
ar.begin_array(cnt);
- if (!ar.stream().good())
+ if (!ar.good())
return false;
v.clear();
// very basic sanity check
if (ar.remaining_bytes() < cnt) {
- ar.stream().setstate(std::ios::failbit);
+ ar.set_fail();
return false;
}
@@ -86,7 +86,7 @@ bool do_serialize_container(Archive<false> &ar, C &v)
if (!::serialization::detail::serialize_container_element(ar, e))
return false;
::serialization::detail::do_add(v, std::move(e));
- if (!ar.stream().good())
+ if (!ar.good())
return false;
}
ar.end_array();
@@ -100,13 +100,13 @@ bool do_serialize_container(Archive<true> &ar, C &v)
ar.begin_array(cnt);
for (auto i = v.begin(); i != v.end(); ++i)
{
- if (!ar.stream().good())
+ if (!ar.good())
return false;
if (i != v.begin())
ar.delimit_array();
if(!::serialization::detail::serialize_container_element(ar, (typename C::value_type&)*i))
return false;
- if (!ar.stream().good())
+ if (!ar.good())
return false;
}
ar.end_array();
diff --git a/src/serialization/crypto.h b/src/serialization/crypto.h
index 42bd06e92..d635a9ee9 100644
--- a/src/serialization/crypto.h
+++ b/src/serialization/crypto.h
@@ -47,7 +47,7 @@ bool do_serialize(Archive<false> &ar, std::vector<crypto::signature> &v)
// very basic sanity check
if (ar.remaining_bytes() < cnt*sizeof(crypto::signature)) {
- ar.stream().setstate(std::ios::failbit);
+ ar.set_fail();
return false;
}
@@ -55,7 +55,7 @@ bool do_serialize(Archive<false> &ar, std::vector<crypto::signature> &v)
for (size_t i = 0; i < cnt; i++) {
v.resize(i+1);
ar.serialize_blob(&(v[i]), sizeof(crypto::signature), "");
- if (!ar.stream().good())
+ if (!ar.good())
return false;
}
return true;
@@ -70,7 +70,7 @@ bool do_serialize(Archive<true> &ar, std::vector<crypto::signature> &v)
size_t cnt = v.size();
for (size_t i = 0; i < cnt; i++) {
ar.serialize_blob(&(v[i]), sizeof(crypto::signature), "");
- if (!ar.stream().good())
+ if (!ar.good())
return false;
}
ar.end_string();
diff --git a/src/serialization/debug_archive.h b/src/serialization/debug_archive.h
index b04d6ae19..e8ccb9a58 100644
--- a/src/serialization/debug_archive.h
+++ b/src/serialization/debug_archive.h
@@ -38,6 +38,7 @@ struct debug_archive : public json_archive<W> {
typedef typename json_archive<W>::stream_type stream_type;
debug_archive(stream_type &s) : json_archive<W>(s) { }
+ stream_type& stream() { return this->stream_; }
};
template <class T>
diff --git a/src/serialization/difficulty_type.h b/src/serialization/difficulty_type.h
index 56c0312e7..75d1fd13f 100644
--- a/src/serialization/difficulty_type.h
+++ b/src/serialization/difficulty_type.h
@@ -38,10 +38,10 @@ inline bool do_serialize(Archive<false>& ar, cryptonote::difficulty_type &diff)
{
uint64_t hi, lo;
ar.serialize_varint(hi);
- if (!ar.stream().good())
+ if (!ar.good())
return false;
ar.serialize_varint(lo);
- if (!ar.stream().good())
+ if (!ar.good())
return false;
diff = hi;
diff <<= 64;
@@ -52,13 +52,13 @@ inline bool do_serialize(Archive<false>& ar, cryptonote::difficulty_type &diff)
template <template <bool> class Archive>
inline bool do_serialize(Archive<true>& ar, cryptonote::difficulty_type &diff)
{
- if (!ar.stream().good())
+ if (!ar.good())
return false;
const uint64_t hi = ((diff >> 64) & 0xffffffffffffffff).convert_to<uint64_t>();
const uint64_t lo = (diff & 0xffffffffffffffff).convert_to<uint64_t>();
ar.serialize_varint(hi);
ar.serialize_varint(lo);
- if (!ar.stream().good())
+ if (!ar.good())
return false;
return true;
}
diff --git a/src/serialization/json_archive.h b/src/serialization/json_archive.h
index 3f98b5101..bab6dfa94 100644
--- a/src/serialization/json_archive.h
+++ b/src/serialization/json_archive.h
@@ -58,6 +58,10 @@ struct json_archive_base
json_archive_base(stream_type &s, bool indent = false)
: stream_(s), indent_(indent), object_begin(false), depth_(0) { }
+ bool good() const { return stream_.good(); }
+ void set_fail() { stream_.setstate(std::ios::failbit); }
+ void clear_fail() { stream_.clear(); }
+
void tag(const char *tag) {
if (!object_begin)
stream_ << ", ";
@@ -82,7 +86,6 @@ struct json_archive_base
void begin_variant() { begin_object(); }
void end_variant() { end_object(); }
- Stream &stream() { return stream_; }
bool varint_bug_backward_compatibility_enabled() const { return false; }
@@ -117,6 +120,8 @@ struct json_archive<true> : public json_archive_base<std::ostream, true>
{
json_archive(stream_type &s, bool indent = false) : base_type(s, indent), inner_array_size_(0) { }
+ std::streampos getpos() const { return stream_.tellp(); }
+
template<typename T>
static auto promote_to_printable_integer_type(T v) -> decltype(+v)
{
diff --git a/src/serialization/pair.h b/src/serialization/pair.h
index 44aafa04d..2d9a89242 100644
--- a/src/serialization/pair.h
+++ b/src/serialization/pair.h
@@ -69,19 +69,19 @@ inline bool do_serialize(Archive<false>& ar, std::pair<F,S>& p)
{
size_t cnt;
ar.begin_array(cnt);
- if (!ar.stream().good())
+ if (!ar.good())
return false;
if (cnt != 2)
return false;
if (!::serialization::detail::serialize_pair_element(ar, p.first))
return false;
- if (!ar.stream().good())
+ if (!ar.good())
return false;
ar.delimit_array();
if (!::serialization::detail::serialize_pair_element(ar, p.second))
return false;
- if (!ar.stream().good())
+ if (!ar.good())
return false;
ar.end_array();
@@ -92,16 +92,16 @@ template <template <bool> class Archive, class F, class S>
inline bool do_serialize(Archive<true>& ar, std::pair<F,S>& p)
{
ar.begin_array(2);
- if (!ar.stream().good())
+ if (!ar.good())
return false;
if(!::serialization::detail::serialize_pair_element(ar, p.first))
return false;
- if (!ar.stream().good())
+ if (!ar.good())
return false;
ar.delimit_array();
if(!::serialization::detail::serialize_pair_element(ar, p.second))
return false;
- if (!ar.stream().good())
+ if (!ar.good())
return false;
ar.end_array();
return true;
diff --git a/src/serialization/serialization.h b/src/serialization/serialization.h
index 3ebeed171..4acadeab3 100644
--- a/src/serialization/serialization.h
+++ b/src/serialization/serialization.h
@@ -213,7 +213,7 @@ inline bool do_serialize(Archive &ar, bool &v)
* \brief self-explanatory
*/
#define END_SERIALIZE() \
- return ar.stream().good(); \
+ return ar.good(); \
}
/*! \macro VALUE(f)
@@ -223,7 +223,7 @@ inline bool do_serialize(Archive &ar, bool &v)
do { \
ar.tag(#f); \
bool r = ::do_serialize(ar, f); \
- if (!r || !ar.stream().good()) return false; \
+ if (!r || !ar.good()) return false; \
} while(0);
/*! \macro FIELD_N(t,f)
@@ -234,7 +234,7 @@ inline bool do_serialize(Archive &ar, bool &v)
do { \
ar.tag(t); \
bool r = ::do_serialize(ar, f); \
- if (!r || !ar.stream().good()) return false; \
+ if (!r || !ar.good()) return false; \
} while(0);
/*! \macro FIELD(f)
@@ -245,7 +245,7 @@ inline bool do_serialize(Archive &ar, bool &v)
do { \
ar.tag(#f); \
bool r = ::do_serialize(ar, f); \
- if (!r || !ar.stream().good()) return false; \
+ if (!r || !ar.good()) return false; \
} while(0);
/*! \macro FIELDS(f)
@@ -255,7 +255,7 @@ inline bool do_serialize(Archive &ar, bool &v)
#define FIELDS(f) \
do { \
bool r = ::do_serialize(ar, f); \
- if (!r || !ar.stream().good()) return false; \
+ if (!r || !ar.good()) return false; \
} while(0);
/*! \macro VARINT_FIELD(f)
@@ -265,7 +265,7 @@ inline bool do_serialize(Archive &ar, bool &v)
do { \
ar.tag(#f); \
ar.serialize_varint(f); \
- if (!ar.stream().good()) return false; \
+ if (!ar.good()) return false; \
} while(0);
/*! \macro VARINT_FIELD_N(t, f)
@@ -276,7 +276,7 @@ inline bool do_serialize(Archive &ar, bool &v)
do { \
ar.tag(t); \
ar.serialize_varint(f); \
- if (!ar.stream().good()) return false; \
+ if (!ar.good()) return false; \
} while(0);
/*! \macro MAGIC_FIELD(m)
@@ -286,7 +286,7 @@ inline bool do_serialize(Archive &ar, bool &v)
do { \
ar.tag("magic"); \
ar.serialize_blob((void*)magic.data(), magic.size()); \
- if (!ar.stream().good()) return false; \
+ if (!ar.good()) return false; \
if (magic != m) return false; \
} while(0);
@@ -297,7 +297,7 @@ inline bool do_serialize(Archive &ar, bool &v)
do { \
ar.tag("version"); \
ar.serialize_varint(version); \
- if (!ar.stream().good()) return false; \
+ if (!ar.good()) return false; \
} while(0);
@@ -339,10 +339,10 @@ namespace serialization {
*
* \brief self explanatory
*/
- template<class Stream>
- bool do_check_stream_state(Stream& s, boost::mpl::bool_<true>, bool noeof)
+ template<class Archive>
+ bool do_check_stream_state(Archive& ar, boost::mpl::bool_<true>, bool noeof)
{
- return s.good();
+ return ar.good();
}
/*! \fn do_check_stream_state
*
@@ -350,15 +350,13 @@ namespace serialization {
*
* \detailed Also checks to make sure that the stream is not at EOF
*/
- template<class Stream>
- bool do_check_stream_state(Stream& s, boost::mpl::bool_<false>, bool noeof)
+ template<class Archive>
+ bool do_check_stream_state(Archive& ar, boost::mpl::bool_<false>, bool noeof)
{
bool result = false;
- if (s.good())
+ if (ar.good())
{
- std::ios_base::iostate state = s.rdstate();
- result = noeof || EOF == s.peek();
- s.clear(state);
+ result = noeof || ar.eof();
}
return result;
}
@@ -371,7 +369,7 @@ namespace serialization {
template<class Archive>
bool check_stream_state(Archive& ar, bool noeof = false)
{
- return detail::do_check_stream_state(ar.stream(), typename Archive::is_saving(), noeof);
+ return detail::do_check_stream_state(ar, typename Archive::is_saving(), noeof);
}
/*! \fn serialize
diff --git a/src/serialization/string.h b/src/serialization/string.h
index f5f69833a..f1f8f4ab0 100644
--- a/src/serialization/string.h
+++ b/src/serialization/string.h
@@ -39,7 +39,7 @@ inline bool do_serialize(Archive<false>& ar, std::string& str)
ar.serialize_varint(size);
if (ar.remaining_bytes() < size)
{
- ar.stream().setstate(std::ios::failbit);
+ ar.set_fail();
return false;
}
diff --git a/src/serialization/variant.h b/src/serialization/variant.h
index b08cf6bf0..6debb63d1 100644
--- a/src/serialization/variant.h
+++ b/src/serialization/variant.h
@@ -74,7 +74,7 @@ struct variant_reader
current_type x;
if(!::do_serialize(ar, x))
{
- ar.stream().setstate(std::ios::failbit);
+ ar.set_fail();
return false;
}
v = x;
@@ -95,7 +95,7 @@ struct variant_reader<Archive, Variant, TBegin, TBegin>
static inline bool read(Archive &ar, Variant &v, variant_tag_type t)
{
- ar.stream().setstate(std::ios::failbit);
+ ar.set_fail();
return false;
}
};
@@ -116,7 +116,7 @@ struct serializer<Archive<false>, boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)>>
typename boost::mpl::begin<types>::type,
typename boost::mpl::end<types>::type>::read(ar, v, t))
{
- ar.stream().setstate(std::ios::failbit);
+ ar.set_fail();
return false;
}
ar.end_variant();
@@ -143,7 +143,7 @@ struct serializer<Archive<true>, boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)>>
ar.write_variant_tag(variant_serialization_traits<Archive<true>, T>::get_tag());
if(!::do_serialize(ar, rv))
{
- ar.stream().setstate(std::ios::failbit);
+ ar.set_fail();
return false;
}
ar.end_variant();
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-18 16:25:19 +0000