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Sandia National Laboratories recently changed management from the Sandia Corporation to the National Technology & Engineering Solutions of Sandia, LLC (NTESS). The copyright statements need to be updated accordingly.
84 lines
3.4 KiB
C++
84 lines
3.4 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//
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// Copyright 2014 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2014 UT-Battelle, LLC.
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// Copyright 2014 Los Alamos National Security.
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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// the U.S. Government retains certain rights in this software.
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//
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//============================================================================
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#ifndef vtk_m_cont_arg_Transport_h
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#define vtk_m_cont_arg_Transport_h
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namespace vtkm
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{
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namespace cont
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{
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namespace arg
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{
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/// \brief Class for transporting from the control to the execution environment.
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///
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/// The \c Transport class is used to transport data of a certain type from the
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/// control environment to the execution environment. It is used internally in
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/// VTK-m's dispatch mechanism.
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///
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/// \c Transport is a templated class with three arguments. The first argument
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/// is a tag declaring the mechanism of transport. The second argument is the
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/// type of data to transport. The third argument is device adapter tag for
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/// the device to move the data to.
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///
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/// There is no generic implementation of \c Transport. There are partial
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/// specializations of \c Transport for each mechanism supported. If you get a
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/// compiler error about an incomplete type for \c Transport, it means you used
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/// an invalid \c TransportTag or it is an invalid combination of data type or
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/// device adapter.
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///
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template <typename TransportTag, typename ContObjectType, typename DeviceAdapterTag>
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struct Transport
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#ifdef VTKM_DOXYGEN_ONLY
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{
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/// \brief The type used in the execution environment.
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///
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/// All \c Transport specializations are expected to declare a type named \c
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/// ExecObjectType that is the object type used in the execution environment.
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/// For example, for an \c ArrayHandle, the \c ExecObjectType is the portal
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/// used in the execution environment.
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///
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using ExecObjectType =
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typename ContObjectType::template ExecutionTypes<DeviceAdapterTag>::PortalConst;
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/// \brief Send data to the execution environment.
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///
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/// All \c Transport specializations are expected to have a constant
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/// parenthesis operator that takes the data in the control environment and
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/// returns an object that is accessible in the execution environment. The
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/// second argument of the operator is a reference to the input domain
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/// argument. This might be useful for checking the sizes of input data. The
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/// third argument is the size of the output domain, which can be used, for
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/// example, to allocate data for an output array. The transport might ignore
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/// either or both of the second two arguments.
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///
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template <typename InputDomainType>
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VTKM_CONT ExecObjectType operator()(const ContObjectType contData,
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const InputDomainType& inputDomain vtkm::Id outputSize) const;
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};
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#else // VTKM_DOXYGEN_ONLY
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;
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#endif // VTKM_DOXYGEN_ONLY
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}
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}
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} // namespace vtkm::cont::arg
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#endif //vtk_m_cont_arg_Transport_h
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