| /* |
| * Copyright (c) 2018 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_GRAPH2_ISTREAM_H__ |
| #define __ARM_COMPUTE_GRAPH2_ISTREAM_H__ |
| |
| #include "arm_compute/graph2/frontend/Types.h" |
| |
| namespace arm_compute |
| { |
| namespace graph2 |
| { |
| // 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 graph2 |
| } // namespace arm_compute |
| #endif /* __ARM_COMPUTE_GRAPH2_ISTREAM_H__ */ |