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// SPDX-License-Identifier: BSD-2-Clause
// Copyright (c) 2025 Kirill Dmitrievich
// File: buffer.hh
// Description: QDataStream-esque buffer
#ifndef CORE_IO_BUFFER_HH
#define CORE_IO_BUFFER_HH
#pragma once
class ReadBuffer final {
public:
ReadBuffer(void) = default;
explicit ReadBuffer(const ReadBuffer& other);
explicit ReadBuffer(const void* data, std::size_t size);
explicit ReadBuffer(const ENetPacket* packet);
explicit ReadBuffer(PHYSFS_File* file);
virtual ~ReadBuffer(void) = default;
std::size_t size(void) const;
const std::byte* data(void) const;
void reset(const void* data, std::size_t size);
void reset(const ENetPacket* packet);
void reset(PHYSFS_File* file);
constexpr void rewind(void);
constexpr bool is_ended(void) const;
void read(void* buffer, std::size_t size);
template<typename T>
T read(void);
template<typename T>
ReadBuffer& operator>>(T& value);
private:
std::vector<std::byte> m_vector;
std::size_t m_position;
};
class WriteBuffer final {
public:
WriteBuffer(void) = default;
explicit WriteBuffer(const WriteBuffer& other);
virtual ~WriteBuffer(void) = default;
std::size_t size(void) const;
const std::byte* data(void) const;
void reset(void);
void write(const WriteBuffer& other);
void write(const void* data, std::size_t size);
template<typename T>
void write(const T value);
template<typename T>
WriteBuffer& operator<<(const T value);
PHYSFS_File* to_file(const std::string& path, bool append = false) const;
ENetPacket* to_packet(enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE) const;
private:
std::vector<std::byte> m_vector;
};
constexpr void ReadBuffer::rewind(void)
{
m_position = 0;
}
constexpr bool ReadBuffer::is_ended(void) const
{
return m_position >= m_vector.size();
}
template<typename T>
ReadBuffer& ReadBuffer::operator>>(T& value)
{
value = read<T>();
return *this;
}
template<typename T>
WriteBuffer& WriteBuffer::operator<<(const T value)
{
write<T>(value);
return *this;
}
#endif
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