39 lines
668 B
Text
39 lines
668 B
Text
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file mutexSpinlockImpl.I
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* @author drose
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* @date 2006-04-11
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*/
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/**
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*
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*/
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INLINE void MutexSpinlockImpl::
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lock() {
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if (!try_lock()) {
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do_lock();
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}
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}
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/**
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*
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*/
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INLINE bool MutexSpinlockImpl::
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try_lock() {
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return !_flag.test_and_set(std::memory_order_acquire);
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}
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/**
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*
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*/
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INLINE void MutexSpinlockImpl::
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unlock() {
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_flag.clear(std::memory_order_release);
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}
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