94 lines
2.7 KiB
C++
94 lines
2.7 KiB
C++
/*
|
|
* Copyright (c) 2018-2019 Arm Limited.
|
|
*
|
|
* SPDX-License-Identifier: MIT
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to
|
|
* deal in the Software without restriction, including without limitation the
|
|
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
|
* sell copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in all
|
|
* copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
#ifndef ARM_COMPUTE_GRAPH_ISTREAM_H
|
|
#define ARM_COMPUTE_GRAPH_ISTREAM_H
|
|
|
|
#include "arm_compute/graph/frontend/Types.h"
|
|
|
|
namespace arm_compute
|
|
{
|
|
namespace graph
|
|
{
|
|
// Forward declarations
|
|
class Graph;
|
|
|
|
namespace frontend
|
|
{
|
|
// Forward declarations
|
|
class ILayer;
|
|
|
|
/** Stream interface **/
|
|
class IStream
|
|
{
|
|
public:
|
|
virtual ~IStream() = default;
|
|
/** Adds a layer to the stream
|
|
*
|
|
* @param[in] layer Layer to add
|
|
*/
|
|
virtual void add_layer(ILayer &layer) = 0;
|
|
/** Returns the underlying graph
|
|
*
|
|
* @return Underlying graph
|
|
*/
|
|
virtual Graph &graph() = 0;
|
|
/** Returns the underlying graph
|
|
*
|
|
* @return Underlying graph
|
|
*/
|
|
virtual const Graph &graph() const = 0;
|
|
/** Returns the tail node of the Stream
|
|
*
|
|
* @return Tail Node ID
|
|
*/
|
|
NodeID tail_node()
|
|
{
|
|
return _tail_node;
|
|
}
|
|
/** Returns the stream hints that are currently used
|
|
*
|
|
* @return Stream hints
|
|
*/
|
|
StreamHints &hints()
|
|
{
|
|
return _hints;
|
|
}
|
|
/** Forwards tail of stream to a given nid
|
|
*
|
|
* @param[in] nid NodeID of the updated tail node
|
|
*/
|
|
void forward_tail(NodeID nid)
|
|
{
|
|
_tail_node = (nid != NullTensorID) ? nid : _tail_node;
|
|
}
|
|
|
|
protected:
|
|
StreamHints _hints = {}; /**< Execution and algorithmic hints */
|
|
NodeID _tail_node = { EmptyNodeID }; /**< NodeID pointing to the last(tail) node of the graph */
|
|
};
|
|
} // namespace frontend
|
|
} // namespace graph
|
|
} // namespace arm_compute
|
|
#endif /* ARM_COMPUTE_GRAPH_ISTREAM_H */
|