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75 lines
2.0 KiB
75 lines
2.0 KiB
/* |
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* Copyright 2008-2012 NVIDIA Corporation |
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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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#pragma once |
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#include <thrust/detail/config.h> |
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#include <thrust/detail/allocator/tagged_allocator.h> |
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#include <thrust/detail/allocator/allocator_traits.h> |
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#include <thrust/pair.h> |
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#include <thrust/memory.h> |
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#include <thrust/detail/execution_policy.h> |
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namespace thrust |
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{ |
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namespace detail |
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{ |
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// XXX the pointer parameter given to tagged_allocator should be related to |
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// the type of the expression get_temporary_buffer(system, n).first |
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// without decltype, compromise on pointer<T,System> |
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template<typename T, typename System> |
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class temporary_allocator |
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: public thrust::detail::tagged_allocator< |
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T, System, thrust::pointer<T,System> |
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> |
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{ |
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private: |
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typedef thrust::detail::tagged_allocator< |
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T, System, thrust::pointer<T,System> |
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> super_t; |
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System &m_system; |
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public: |
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typedef typename super_t::pointer pointer; |
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typedef typename super_t::size_type size_type; |
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inline explicit temporary_allocator(thrust::execution_policy<System> &system) : |
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super_t(), |
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m_system(thrust::detail::derived_cast(system)) |
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{} |
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pointer allocate(size_type cnt); |
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void deallocate(pointer p, size_type n); |
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inline System &system() |
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{ |
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return m_system; |
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} // end system() |
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private: |
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typedef thrust::pair<pointer, size_type> pointer_and_size; |
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}; // end temporary_allocator |
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} // end detail |
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} // end thrust |
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#include <thrust/detail/allocator/temporary_allocator.inl> |
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