// Copyright (C) 2015-2021 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.

#include <config.h>
#include <lfc/lfc_controller.h>
#include <exceptions/exceptions.h>
#include <log/logger_support.h>
#include <log/logger_manager.h>
#include <boost/exception/diagnostic_information.hpp>
#include <boost/exception_ptr.hpp>
#include <iostream>
#include <sys/resource.h>

using namespace std;
using namespace isc::lfc;

/// This file contains the entry point (main() function) for the
/// standard LFC process, kea-lfc, component of the Kea software suite.
/// It creates an instance of the LFCController class and invokes
/// its launch method.
/// The exit value of the program will be EXIT_SUCCESS if there were no
/// errors, EXIT_FAILURE otherwise.
int main(int argc, char* argv[]) {
    int ret = EXIT_SUCCESS;
    try {
        // Ask scheduling to not give too much resources to LFC.
        // First parameter means to change only the process priority.
        // Second parameter (0) means the calling process.
        // Third parameter 4 is a bit below the default priority of 0 in
        // a range of -20 (highest priority) and 19 or 20 (lowest priority).
        static_cast<void>(setpriority(PRIO_PROCESS, 0, 4));

        LFCController lfc_controller;

        // Launch the controller passing in command line arguments.
        // Exit program with the controller's return code.

        // 'false' value disables test mode.
        lfc_controller.launch(argc, argv, false);

    } catch (const boost::exception& ex) {
        std::cerr << boost::diagnostic_information(ex) << std::endl;
        ret = EXIT_FAILURE;
    } catch (const std::exception& ex) {
        std::cerr << "Service failed: " << ex.what() << std::endl;
        ret = EXIT_FAILURE;
    } catch (...) {
        std::cerr << "Service failed" << std::endl;
        ret = EXIT_FAILURE;
    }

    return (ret);
}