2015-02-14 13:03:39 +00:00
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/*
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* Copyright 2011-2015 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_GUARDED_ALLOCATOR_H__
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#define __UTIL_GUARDED_ALLOCATOR_H__
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2015-02-14 18:26:07 +00:00
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/* Define this in order to use Blender's guarded allocator to keep
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* track of allocated buffers, their sizes and peak memory usage.
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*
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* This is usually a bad level call, but it's really handy to keep
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* track of overall peak memory consumption during the scene
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* synchronization step.
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*/
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#undef WITH_BLENDER_GUARDEDALLOC
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2015-02-14 13:03:39 +00:00
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#include <memory>
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#include "util_types.h"
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2015-02-14 18:26:07 +00:00
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#ifdef WITH_BLENDER_GUARDEDALLOC
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# include "../../guardedalloc/MEM_guardedalloc.h"
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#endif
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2015-02-14 13:03:39 +00:00
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CCL_NAMESPACE_BEGIN
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/* Internal use only. */
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void util_guarded_mem_alloc(size_t n);
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void util_guarded_mem_free(size_t n);
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/* Guarded allocator for the use with STL. */
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template <typename T>
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2015-06-28 08:51:49 +00:00
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class GuardedAllocator : public std::allocator<T> {
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2015-02-14 13:03:39 +00:00
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public:
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template<typename _Tp1>
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struct rebind {
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typedef GuardedAllocator<_Tp1> other;
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};
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T *allocate(size_t n, const void *hint = 0)
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{
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util_guarded_mem_alloc(n * sizeof(T));
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2015-02-14 18:26:07 +00:00
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#ifdef WITH_BLENDER_GUARDEDALLOC
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2015-04-02 10:06:40 +00:00
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(void)hint;
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2015-06-27 19:07:43 +00:00
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return (T*)MEM_mallocN_aligned(n * sizeof(T), 16, "Cycles Alloc");
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2015-02-14 18:26:07 +00:00
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#else
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2015-02-14 13:03:39 +00:00
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return std::allocator<T>::allocate(n, hint);
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2015-02-14 18:26:07 +00:00
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#endif
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2015-02-14 13:03:39 +00:00
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}
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void deallocate(T *p, size_t n)
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{
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util_guarded_mem_free(n * sizeof(T));
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2015-02-14 18:26:07 +00:00
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#ifdef WITH_BLENDER_GUARDEDALLOC
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MEM_freeN((void*)p);
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#else
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std::allocator<T>::deallocate(p, n);
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#endif
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2015-02-14 13:03:39 +00:00
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}
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GuardedAllocator() : std::allocator<T>() { }
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GuardedAllocator(const GuardedAllocator &a) : std::allocator<T>(a) { }
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template <class U>
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GuardedAllocator(const GuardedAllocator<U> &a) : std::allocator<T>(a) { }
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~GuardedAllocator() { }
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};
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/* Get memory usage and peak from the guarded STL allocator. */
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size_t util_guarded_get_mem_used(void);
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size_t util_guarded_get_mem_peak(void);
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CCL_NAMESPACE_END
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#endif /* __UTIL_GUARDED_ALLOCATOR_H__ */
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