draconisplusplus/include/rfl/msgpack/read.hpp
2024-06-16 00:13:15 -04:00

56 lines
1.6 KiB
C++

#ifndef RFL_MSGPACK_READ_HPP_
#define RFL_MSGPACK_READ_HPP_
#include <istream>
#include <msgpack.h>
#include <string>
#include "../Processors.hpp"
#include "../internal/wrap_in_rfl_array_t.hpp"
#include "Parser.hpp"
#include "Reader.hpp"
namespace rfl {
namespace msgpack {
using InputObjectType = typename Reader::InputObjectType;
using InputVarType = typename Reader::InputVarType;
/// Parses an object from a MSGPACK var.
template <class T, class... Ps>
auto read(const InputVarType& _obj) {
const auto r = Reader();
return Parser<T, Processors<Ps...>>::read(r, _obj);
}
/// Parses an object from MSGPACK using reflection.
template <class T, class... Ps>
Result<internal::wrap_in_rfl_array_t<T>> read(const char* _bytes, const size_t _size) {
msgpack_zone mempool;
msgpack_zone_init(&mempool, 2048);
msgpack_object deserialized;
msgpack_unpack(_bytes, _size, NULL, &mempool, &deserialized);
auto r = read<T, Ps...>(deserialized);
msgpack_zone_destroy(&mempool);
return r;
}
/// Parses an object from MSGPACK using reflection.
template <class T, class... Ps>
auto read(const std::vector<char>& _bytes) {
return read<T, Ps...>(_bytes.data(), _bytes.size());
}
/// Parses an object from a stream.
template <class T, class... Ps>
auto read(std::istream& _stream) {
std::istreambuf_iterator<char> begin(_stream), end;
auto bytes = std::vector<char>(begin, end);
return read<T, Ps...>(bytes.data(), bytes.size());
}
} // namespace msgpack
} // namespace rfl
#endif