You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
61 lines
1.6 KiB
61 lines
1.6 KiB
11 years ago
|
/*
|
||
|
|
* Copyright 2008-2012 NVIDIA Corporation
|
||
|
|
*
|
||
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
* you may not use this file except in compliance with the License.
|
||
|
|
* You may obtain a copy of the License at
|
||
|
|
*
|
||
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
*
|
||
|
|
* Unless required by applicable law or agreed to in writing, software
|
||
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
* See the License for the specific language governing permissions and
|
||
|
|
* limitations under the License.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <thrust/detail/config.h>
|
||
|
|
#include <thrust/system/detail/generic/temporary_buffer.h>
|
||
|
|
#include <thrust/detail/pointer.h>
|
||
|
|
#include <thrust/detail/malloc_and_free.h>
|
||
|
|
#include <thrust/pair.h>
|
||
|
|
|
||
|
|
namespace thrust
|
||
|
|
{
|
||
|
|
namespace system
|
||
|
|
{
|
||
|
|
namespace detail
|
||
|
|
{
|
||
|
|
namespace generic
|
||
|
|
{
|
||
|
|
|
||
|
|
|
||
|
|
template<typename T, typename DerivedPolicy>
|
||
|
|
thrust::pair<thrust::pointer<T,DerivedPolicy>, typename thrust::pointer<T,DerivedPolicy>::difference_type>
|
||
|
|
get_temporary_buffer(thrust::execution_policy<DerivedPolicy> &exec, typename thrust::pointer<T,DerivedPolicy>::difference_type n)
|
||
|
|
{
|
||
|
|
thrust::pointer<T,DerivedPolicy> ptr = thrust::malloc<T>(exec, n);
|
||
|
|
|
||
|
|
// check for a failed malloc
|
||
|
|
if(!ptr.get())
|
||
|
|
{
|
||
|
|
n = 0;
|
||
|
|
} // end if
|
||
|
|
|
||
|
|
return thrust::make_pair(ptr, n);
|
||
|
|
} // end get_temporary_buffer()
|
||
|
|
|
||
|
|
|
||
|
|
template<typename DerivedPolicy, typename Pointer>
|
||
|
|
void return_temporary_buffer(thrust::execution_policy<DerivedPolicy> &exec, Pointer p)
|
||
|
|
{
|
||
|
|
thrust::free(exec, p);
|
||
|
|
} // end return_temporary_buffer()
|
||
|
|
|
||
|
|
|
||
|
|
} // end generic
|
||
|
|
} // end detail
|
||
|
|
} // end system
|
||
|
|
} // end thrust
|
||
|
|
|