46 lines
1.5 KiB
C++
46 lines
1.5 KiB
C++
/*
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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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* Copyright 2015 Danny Robson <danny@nerdcruft.net>
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*/
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#ifndef CRUFT_UTIL_ALLOC_RAW_AFFIX_HPP
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#define CRUFT_UTIL_ALLOC_RAW_AFFIX_HPP
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#include <cstddef>
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namespace util::alloc::raw {
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/// a raw memory allocator which initialises an instance of PrefixT
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/// immediately before each allocation and, if specified, an instance
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/// of SuffixT after the allocation.
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///
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/// uses an instance of ParentT to actually perform the bulk allocations.
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///
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/// useful for sentinels, reference counts, etc.
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template <class ParentT, class PrefixT, class SuffixT>
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class affix {
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void* allocate (size_t bytes);
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void* allocate (size_t bytes, size_t align);
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void deallocate (void *ptr, size_t bytes);
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void deallocate (void *ptr, size_t bytes, size_t align);
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void* base (void);
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const void* base (void) const;
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size_t offset (const void*) const;
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};
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}
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#endif
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