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104 lines
2.7 KiB
104 lines
2.7 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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/*! \file device_malloc.h
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* \brief Allocates storage in device memory
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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/device_ptr.h>
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#include <cstddef> // for std::size_t
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namespace thrust
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{
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/*! \addtogroup allocation_functions Allocation Functions
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* \ingroup memory_management_functions
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* \{
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*/
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/*! This version of \p device_malloc allocates sequential device storage
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* for bytes.
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*
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* \param n The number of bytes to allocate sequentially
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* in device memory.
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* \return A \p device_ptr to the newly allocated memory.
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*
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* The following code snippet demonstrates how to use \p device_malloc to
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* allocate a range of device memory.
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*
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* \code
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* #include <thrust/device_malloc.h>
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* #include <thrust/device_free.h>
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* ...
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* // allocate some memory with device_malloc
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* const int N = 100;
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* thrust::device_ptr<void> void_ptr = thrust::device_malloc(N);
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*
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* // manipulate memory
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* ...
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*
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* // deallocate with device_free
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* thrust::device_free(void_ptr);
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* \endcode
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*
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* \see device_ptr
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* \see device_free
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*/
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inline thrust::device_ptr<void> device_malloc(const std::size_t n);
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/*! This version of \p device_malloc allocates sequential device storage for
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* new objects of the given type.
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*
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* \param n The number of objects of type T to allocate
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* sequentially in device memory.
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* \return A \p device_ptr to the newly allocated memory.
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*
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* The following code snippet demonstrates how to use \p device_malloc to
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* allocate a range of device memory.
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*
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* \code
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* #include <thrust/device_malloc.h>
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* #include <thrust/device_free.h>
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* ...
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* // allocate some integers with device_malloc
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* const int N = 100;
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* thrust::device_ptr<int> int_array = thrust::device_malloc<int>(N);
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*
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* // manipulate integers
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* ...
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*
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* // deallocate with device_free
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* thrust::device_free(int_array);
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* \endcode
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*
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* \see device_ptr
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* \see device_free
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*/
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template<typename T>
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inline thrust::device_ptr<T> device_malloc(const std::size_t n);
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/*! \}
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*/
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} // end thrust
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#include <thrust/detail/device_malloc.inl>
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