blender/intern/cycles/util/util_atomic.h
Sergey Sharybin 5ff132182d Cycles: Code cleanup, spaces around keywords
This inconsistency drove me totally crazy, it's really confusing
when it's inconsistent especially when you work on both Cycles and
Blender sides.

Shouldn;t cause merge PITA, it's whitespace changes only, Git should
be able to merge it nicely.
2015-03-28 00:15:15 +05:00

34 lines
985 B
C

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