blender/intern/cycles/util/util_stats.h
Sergey Sharybin ed935ae5ad Cycles: Use lock in the memory statistics
CPU rendering is allowed to allocate memory from multiple threads,
which means statistics need to be avare of this.
2014-12-02 15:50:46 +05:00

45 lines
1.0 KiB
C++

/*
* Copyright 2011-2013 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_STATS_H__
#define __UTIL_STATS_H__
#include "util_atomic.h"
CCL_NAMESPACE_BEGIN
class Stats {
public:
Stats() : mem_used(0), mem_peak(0) {}
void mem_alloc(size_t size) {
atomic_add_z(&mem_used, size);
atomic_update_max_z(&mem_peak, mem_used);
}
void mem_free(size_t size) {
assert(mem_used >= size);
atomic_sub_z(&mem_used, size);
}
size_t mem_used;
size_t mem_peak;
};
CCL_NAMESPACE_END
#endif /* __UTIL_STATS_H__ */