1 /* 2 * Copyright (c) 2018-2020 Arm Limited. 3 * 4 * SPDX-License-Identifier: MIT 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to 8 * deal in the Software without restriction, including without limitation the 9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 10 * sell copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in all 14 * copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 */ 24 #ifndef ARM_COMPUTE_GRAPH_STREAM_H 25 #define ARM_COMPUTE_GRAPH_STREAM_H 26 27 #include "arm_compute/graph/frontend/IStream.h" 28 #include "arm_compute/graph/frontend/IStreamOperators.h" 29 #include "arm_compute/graph/frontend/Types.h" 30 31 #include "arm_compute/graph/Graph.h" 32 #include "arm_compute/graph/GraphContext.h" 33 #include "arm_compute/graph/GraphManager.h" 34 35 namespace arm_compute 36 { 37 namespace graph 38 { 39 namespace frontend 40 { 41 // Forward Declarations 42 class ILayer; 43 44 /** Stream frontend class to construct simple graphs in a stream fashion */ 45 class Stream final : public IStream 46 { 47 public: 48 /** Constructor 49 * 50 * @param[in] id Stream id 51 * @param[in] name Stream name 52 */ 53 Stream(size_t id, std::string name); 54 /** Prevent instances of this class from being copied (As this class contains pointers) */ 55 Stream(const Stream &) = delete; 56 /** Prevent instances of this class from being copied (As this class contains pointers) */ 57 Stream &operator=(const Stream &) = delete; 58 /** Finalizes the stream for an execution target 59 * 60 * @param[in] target Execution target 61 * @param[in] config (Optional) Graph configuration to use 62 */ 63 void finalize(Target target, const GraphConfig &config); 64 /** Executes the stream **/ 65 void run(); 66 67 // Inherited overridden methods 68 void add_layer(ILayer &layer) override; 69 Graph &graph() override; 70 const Graph &graph() const override; 71 72 private: 73 //Important: GraphContext must be declared *before* the GraphManager because the GraphManager 74 //allocates resources from the context and therefore needs to be destroyed before the context during clean up. 75 GraphContext _ctx; /**< Graph context to use */ 76 GraphManager _manager; /**< Graph manager */ 77 Graph _g; /**< Internal graph representation of the stream */ 78 }; 79 } // namespace frontend 80 } // namespace graph 81 } // namespace arm_compute 82 #endif /* ARM_COMPUTE_GRAPH_STREAM_H */ 83