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/*
This file is part of Warzone 2100.
Copyright (C) 2024 Warzone 2100 Project
Warzone 2100 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 2 of the License, or
(at your option) any later version.
Warzone 2100 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 Warzone 2100; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include <string>
#include <system_error>
#include <memory>
#include <functional>
#include "lib/netplay/client_connection.h"
#include <nonstd/optional.hpp>
using nonstd::optional;
using nonstd::nullopt;
// Higher-level functions for opening a connection / socket
struct OpenConnectionResult
{
public:
OpenConnectionResult(std::error_code ec, std::string errorString)
: errorCode(ec)
, errorString(std::move(errorString))
{ }
OpenConnectionResult(IClientConnection* open_socket)
: open_socket(open_socket)
{ }
bool hasError() const { return errorCode.has_value(); }
OpenConnectionResult(const OpenConnectionResult& other) = delete; // non construction-copyable
OpenConnectionResult& operator=(const OpenConnectionResult&) = delete; // non copyable
OpenConnectionResult(OpenConnectionResult&&) = default;
OpenConnectionResult& operator=(OpenConnectionResult&&) = default;
struct ConnectionCloser
{
void operator() (IClientConnection* conn)
{
if (conn)
{
conn->close();
}
}
};
std::unique_ptr<IClientConnection, ConnectionCloser> open_socket;
optional<std::error_code> errorCode = nullopt;
std::string errorString;
};
typedef std::function<void(OpenConnectionResult&& result)> OpenConnectionToHostResultCallback;
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