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60 lines
1.8 KiB
60 lines
1.8 KiB
11 years ago
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/*
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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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#include <thrust/detail/config.h>
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#include <thrust/detail/allocator/temporary_allocator.h>
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#include <thrust/detail/temporary_buffer.h>
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#include <thrust/system/detail/bad_alloc.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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template<typename T, typename System>
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typename temporary_allocator<T,System>::pointer
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temporary_allocator<T,System>
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::allocate(typename temporary_allocator<T,System>::size_type cnt)
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{
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pointer_and_size result = thrust::get_temporary_buffer<T>(system(), cnt);
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// handle failure
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if(result.second < cnt)
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{
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// deallocate and throw
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// note that we pass cnt to deallocate, not a value derived from result.second
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deallocate(result.first, cnt);
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throw thrust::system::detail::bad_alloc("temporary_buffer::allocate: get_temporary_buffer failed");
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} // end if
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return result.first;
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} // end temporary_allocator::allocate()
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template<typename T, typename System>
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void temporary_allocator<T,System>
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::deallocate(typename temporary_allocator<T,System>::pointer p, typename temporary_allocator<T,System>::size_type n)
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{
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return thrust::return_temporary_buffer(system(), p);
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} // end temporary_allocator
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} // end detail
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} // end thrust
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