threadloop.cpp

/*
 *  Copyright (C) 2013-2018 Savoir-faire Linux Inc.
 *
 *  Author: Guillaume Roguez <Guillaume.Roguez@savoirfairelinux.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.
 */

#include "threadloop.h"
#include "logger.h"

#include <ciso646> // fix windows compiler bug

namespace ring {

void
ThreadLoop::mainloop(std::thread::id& tid,
                     const std::function<bool()> setup,
                     const std::function<void()> process,
                     const std::function<void()> cleanup)
{
    tid = std::this_thread::get_id();
    try {
        if (setup()) {
            while (state_ == RUNNING)
                process();
            cleanup();
        } else {
            RING_ERR("setup failed");
        }
    } catch (const ThreadLoopException& e) {
        RING_ERR("[threadloop:%p] ThreadLoopException: %s", this, e.what());
    } catch (const std::exception& e) {
        RING_ERR("[threadloop:%p] Unwaited exception: %s", this, e.what());
    }
}

ThreadLoop::ThreadLoop(const std::function<bool()>& setup,
                       const std::function<void()>& process,
                       const std::function<void()>& cleanup)
    : setup_(setup)
    , process_(process)
    , cleanup_(cleanup)
    , thread_()
{}

ThreadLoop::ThreadLoop(ThreadLoop&& other)
    : setup_(std::move(other.setup_))
    , process_(std::move(other.process_))
    , cleanup_(std::move(other.cleanup_))
    , state_(other.state_.load())
    , thread_(std::move(other.thread_))
{
    other.state_ = READY;
}

ThreadLoop::~ThreadLoop()
{