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/************************************************************************
*
* Copyright (C) 2025 IRCAD France
*
* This file is part of Sight.
*
* Sight is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Sight 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Sight. If not, see <https://www.gnu.org/licenses/>.
*
***********************************************************************/
#include "joystick.hpp"
#include "detail/event_loop.hpp"
#include <mutex>
namespace sight::io::joystick
{
/// This structure is used to ensure that SDL is correctly terminated when the program exits, even in case of crashes.
static struct event_loop_keeper
{
~event_loop_keeper()
{
std::unique_lock lock(mutex);
// We need to perform special action if shutdown() is not called due to unexpected scalar destruction
// If we are there, like when CPPUnit test breaks at start, the main thread is already dead (at least on linux).
if(event_loop)
{
event_loop->internal_stop();
}
}
std::mutex mutex;
std::shared_ptr<detail::event_loop> event_loop;
} s_event_loop_keeper;
//------------------------------------------------------------------------------
void init()
{
std::unique_lock lock(s_event_loop_keeper.mutex);
if(!s_event_loop_keeper.event_loop)
{
s_event_loop_keeper.event_loop = detail::event_loop::make();
}
}
//------------------------------------------------------------------------------
void shutdown()
{
std::unique_lock lock(s_event_loop_keeper.mutex);
s_event_loop_keeper.event_loop.reset();
}
} // namespace sight::io::joystick
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