💿🐜 Antkeeper source code https://antkeeper.com
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/*
* Copyright (C) 2023 Christopher J. Howard
*
* This file is part of Antkeeper source code.
*
* Antkeeper source code is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Antkeeper source code is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef ANTKEEPER_RESOURCES_SERIALIZE_CONTEXT_HPP
#define ANTKEEPER_RESOURCES_SERIALIZE_CONTEXT_HPP
#include <cstddef>
#include <bit>
/**
* Provides access to a serialization state.
*/
struct serialize_context
{
public:
/**
* Writes 8-bit (byte) data.
*
* @param data Pointer to data source.
* @param count Number of bytes to write.
*
* @return Number of bytes written.
*
* @throw serialize_error Write error.
*/
std::size_t write8(const std::byte* data, std::size_t count) noexcept(false);
/**
* Writes 16-bit (word) little-endian data.
*
* @param data Pointer to data source.
* @param count Number of words to write.
*
* @return Number of words written.
*
* @throw serialize_error Write error.
*/
std::size_t write16_le(const std::byte* data, std::size_t count) noexcept(false);
/**
* Writes 16-bit (word) big-endian data.
*
* @param data Pointer to data source.
* @param count Number of words to write.
*
* @return Number of words written.
*
* @throw serialize_error Write error.
*/
std::size_t write16_be(const std::byte* data, std::size_t count) noexcept(false);
/**
* Writes 16-bit (word) data.
*
* @tparam Endian Endianness of the write operation.
*
* @param data Pointer to data source.
* @param count Number of words to write.
*
* @return Number of words written.
*
* @throw serialize_error Write error.
*/
template <std::endian Endian>
inline std::size_t write16(const std::byte* data, std::size_t count) noexcept(false)
{
if constexpr (Endian == std::endian::little)
{
return write16_le(data, count);
}
else
{
return write16_be(data, count);
}
}
/**
* Writes 32-bit (double word) little-endian data.
*
* @param data Pointer to data source.
* @param count Number of double words to write.
*
* @return Number of double words written.
*
* @throw serialize_error Write error.
*/
std::size_t write32_le(const std::byte* data, std::size_t count) noexcept(false);
/**
* Writes 32-bit (double word) big-endian data.
*
* @param data Pointer to data source.
* @param count Number of double words to write.
*
* @return Number of double words written.
*
* @throw serialize_error Write error.
*/
std::size_t write32_be(const std::byte* data, std::size_t count) noexcept(false);
/**
* Writes 32-bit (double word) data.
*
* @tparam Endian Endianness of the write operation.
*
* @param data Pointer to data source.
* @param count Number of double words to write.
*
* @return Number of double words written.
*
* @throw serialize_error Write error.
*/
template <std::endian Endian>
inline std::size_t write32(const std::byte* data, std::size_t count) noexcept(false)
{
if constexpr (Endian == std::endian::little)
{
return write32_le(data, count);
}
else
{
return write32_be(data, count);
}
}
/**
* Writes 64-bit (quad word) little-endian data.
*
* @param data Pointer to data source.
* @param count Number of quad words to write.
*
* @return Number of quad words written.
*
* @throw serialize_error Write error.
*/
std::size_t write64_le(const std::byte* data, std::size_t count) noexcept(false);
/**
* Writes 64-bit (quad word) big-endian data.
*
* @param data Pointer to data source.
* @param count Number of quad words to write.
*
* @return Number of quad words written.
*
* @throw serialize_error Write error.
*/
std::size_t write64_be(const std::byte* data, std::size_t count) noexcept(false);
/**
* Writes 64-bit (quad word) data.
*
* @tparam Endian Endianness of the write operation.
*
* @param data Pointer to data source.
* @param count Number of quad words to write.
*
* @return Number of quad words written.
*
* @throw serialize_error Write error.
*/
template <std::endian Endian>
inline std::size_t write64(const std::byte* data, std::size_t count) noexcept(false)
{
if constexpr (Endian == std::endian::little)
{
return write64_le(data, count);
}
else
{
return write64_be(data, count);
}
}
/**
* Returns `true` if an error occured during a write operation, `false` otherwise.
*/
[[nodiscard]] inline bool error() const noexcept
{
return m_error;
}
private:
template <class T>
friend class resource_loader;
serialize_context(void* handle);
void* handle;
bool m_error;
};
#endif // ANTKEEPER_RESOURCES_SERIALIZE_CONTEXT_HPP