thread_type_selector.h

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// Copyright 2019-2022:
//   GobySoft, LLC (2013-)
//   Community contributors (see AUTHORS file)
// File authors:
//   Toby Schneider <toby@gobysoft.org>
//
//
// This file is part of the Goby Underwater Autonomy Project Libraries
// ("The Goby Libraries").
//
// The Goby Libraries are free software: you can redistribute them and/or modify
// them under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 2.1 of the License, or
// (at your option) any later version.
//
// The Goby Libraries are distributed in the hope that they will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with Goby.  If not, see <http://www.gnu.org/licenses/>.
 
#ifndef GOBY_MIDDLEWARE_APPLICATION_DETAIL_THREAD_TYPE_SELECTOR_H
#define GOBY_MIDDLEWARE_APPLICATION_DETAIL_THREAD_TYPE_SELECTOR_H
 
#include <memory>
 
namespace goby
{
namespace middleware
{
namespace detail
{
template <typename ThreadType, typename ThreadConfig, bool has_index, bool has_config>
struct ThreadTypeSelector
{
};
 
template <typename ThreadType, typename ThreadConfig>
struct ThreadTypeSelector<ThreadType, ThreadConfig, false, true>
{
    static std::shared_ptr<ThreadType> thread(const ThreadConfig& cfg, int index = -1)
    {
        return std::make_shared<ThreadType>(cfg);
    };
};
 
template <typename ThreadType, typename ThreadConfig>
struct ThreadTypeSelector<ThreadType, ThreadConfig, true, true>
{
    static std::shared_ptr<ThreadType> thread(const ThreadConfig& cfg, int index)
    {
        return std::make_shared<ThreadType>(cfg, index);
    };
};
 
template <typename ThreadType, typename ThreadConfig>
struct ThreadTypeSelector<ThreadType, ThreadConfig, false, false>
{
    static std::shared_ptr<ThreadType> thread(const ThreadConfig& cfg, int index = -1)
    {
        return std::make_shared<ThreadType>();
    };
};
 
template <typename ThreadType, typename ThreadConfig>
struct ThreadTypeSelector<ThreadType, ThreadConfig, true, false>
{
    static std::shared_ptr<ThreadType> thread(const ThreadConfig& cfg, int index)
    {
        return std::make_shared<ThreadType>(index);
    };
};
 
} // namespace detail
} // namespace middleware
} // namespace goby
 
#endif