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/**
* @file environment.hpp
* @author Felix Morgner (felix.morgner@gmail.com)
* @since 1.0.0
*/
#ifndef WANDA_CONTROL_INTERFACE_HPP
#define WANDA_CONTROL_INTERFACE_HPP
#include <wanda/command.hpp>
#include <wanda/control_connection.hpp>
#include <wanda/keyed.hpp>
#include <asio.hpp>
#include <spdlog/spdlog.h>
#include <cstddef>
#include <filesystem>
#include <istream>
#include <map>
#include <memory>
#include <set>
#include <string>
#include <type_traits>
namespace wanda
{
/**
* @brief An RAII type to delete a socket file upon destruction
*/
struct socket_deleter
{
~socket_deleter();
std::filesystem::path path;
};
/**
* @brief The daemon control interface
*/
struct control_interface : control_connection::listener, keyed<control_interface>, std::enable_shared_from_this<control_interface>
{
using protocol = asio::local::stream_protocol;
using pointer = std::shared_ptr<control_interface>;
/**
* @brief The interface to be implemented by the control interface listener
*/
struct listener
{
virtual void on_received(control_interface & interface, command command){};
};
/**
* @internal
* @brief Construct a new control interface object
*
* @note This constructor is keyed on a private key type so it can only be constructed using the #wanda::make_interface factory
*/
control_interface(key, asio::io_service & service, protocol::endpoint endpoint, listener & listener);
/**
* @brief Start handling of controller connections
*/
std::error_code start();
/**
* @brief Stop the control interface
*/
std::error_code shutdown();
void on_close(control_connection::pointer connection) override;
void on_received(control_connection::pointer connection, message message) override;
private:
void perform_accept();
friend pointer make_interface(asio::io_service & service, std::filesystem::path file, control_interface::listener & listener);
asio::io_service & m_service;
protocol::endpoint m_endpoint;
protocol::socket m_socket;
protocol::acceptor m_acceptor;
listener & m_listener;
socket_deleter m_deleter{m_endpoint.path()};
std::set<control_connection::pointer> m_connections;
};
/**
* @brief A factory to create new #control_interface instances
*/
control_interface::pointer make_interface(asio::io_service & service, std::filesystem::path socket, control_interface::listener & listener);
} // namespace wanda
#endif
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