forked from bartvdbraak/blender
ed935ae5ad
CPU rendering is allowed to allocate memory from multiple threads, which means statistics need to be avare of this.
34 lines
986 B
C
34 lines
986 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__ */
|