message.hpp

/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * Copyright (C) 2026 Marco Craveiro <marco.craveiro@gmail.com>
 *
 * This program 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.
 *
 * This program 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
 * this program; if not, write to the Free Software Foundation, Inc., 51
 * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */
#ifndef ORES_NATS_DOMAIN_MESSAGE_HPP
#define ORES_NATS_DOMAIN_MESSAGE_HPP
 
#include <functional>
#include <span>
#include <string>
#include <string_view>
#include <unordered_map>
#include <vector>
#include <cstddef>
 
namespace ores::nats {
 
struct message {
    std::string subject;
 
    std::string reply_subject;
 
    std::vector<std::byte> data;
 
    std::unordered_map<std::string, std::string> headers;
};
 
using message_handler = std::function<void(message)>;
 
inline std::span<const std::byte> as_bytes(std::string_view s) noexcept {
    return {reinterpret_cast<const std::byte*>(s.data()), s.size()};
}
 
inline std::string_view as_string_view(const std::vector<std::byte>& data) noexcept {
    return {reinterpret_cast<const char*>(data.data()), data.size()};
}
 
}
 
#endif