34 lines
987 B
C
34 lines
987 B
C
/*
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* Copyright 2014 Blender Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __UTIL_ATOMIC_H__
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#define __UTIL_ATOMIC_H__
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/* Using atomic ops header from Blender. */
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#include "atomic_ops.h"
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ATOMIC_INLINE void atomic_update_max_z(size_t *maximum_value, size_t value)
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{
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size_t prev_value = *maximum_value;
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while (prev_value < value) {
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if (atomic_cas_z(maximum_value, prev_value, value) != prev_value) {
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break;
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}
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}
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}
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#endif /* __UTIL_ATOMIC_H__ */
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