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/* Copyright (c) 2008-2025 the MRtrix3 contributors.
*
* 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/.
*
* Covered Software is provided under this License on an "as is"
* basis, without warranty of any kind, either expressed, implied, or
* statutory, including, without limitation, warranties that the
* Covered Software is free of defects, merchantable, fit for a
* particular purpose or non-infringing.
* See the Mozilla Public License v. 2.0 for more details.
*
* For more details, see http://www.mrtrix.org/.
*/
#include <atomic>
#include <mutex>
namespace MR {
class SpinLock
{ NOMEMALIGN
public:
void lock() noexcept { while (m_.test_and_set(std::memory_order_acquire)); }
void unlock() noexcept { m_.clear(std::memory_order_release); }
protected:
std::atomic_flag m_ = ATOMIC_FLAG_INIT;
};
}
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