libki/include/ki/protocol/Packet.h

67 lines
1.4 KiB
C++

#pragma once
#include "../util/Serializable.h"
#include "exception.h"
#include <cstdint>
#include <vector>
#include <sstream>
#include <type_traits>
namespace ki
{
namespace protocol
{
class Packet final : public util::Serializable
{
public:
Packet(bool control = false, uint8_t opcode = 0);
virtual ~Packet() = default;
bool is_control() const;
void set_control(bool control);
uint8_t get_opcode() const;
void set_opcode(uint8_t opcode);
template <typename DataT>
void set_payload_data(const DataT &data)
{
static_assert(std::is_base_of<Serializable, DataT>::value,
"DataT must derive from Serializable.");
std::ostringstream oss;
data.write_to(oss);
std::string data_string = oss.str();
m_payload.assign(data_string.begin(), data_string.end());
}
template <typename DataT>
DataT *get_payload_data() const
{
static_assert(std::is_base_of<Serializable, DataT>::value,
"DataT must derive from Serializable.");
std::istringstream iss(std::string(m_payload.data(), m_payload.size()));
DataT *data = new DataT();
try
{
data->read_from(iss);
}
catch (parse_error &e)
{
delete data;
throw;
}
return data;
}
void write_to(std::ostream &ostream) const override final;
void read_from(std::istream &istream) override final;
size_t get_size() const override final;
private:
bool m_control;
uint8_t m_opcode;
std::vector<char> m_payload;
};
}
}