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/*
* Copyright (c) 2018-2020 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_WORKLOAD_H
#define ARM_COMPUTE_GRAPH_WORKLOAD_H
#include "arm_compute/graph/GraphContext.h"
#include "arm_compute/graph/Tensor.h"
#include "arm_compute/runtime/IFunction.h"
#include "arm_compute/runtime/IMemoryGroup.h"
#include <functional>
#include <memory>
#include <vector>
namespace arm_compute
{
namespace graph
{
// Forward declarations
class ITensorHandle;
class INode;
class Graph;
struct ExecutionTask;
void execute_task(ExecutionTask &task);
/** Task executor */
class TaskExecutor final
{
private:
/** Default constructor **/
TaskExecutor();
public:
/** Task executor accessor
*
* @return Task executor instance
*/
static TaskExecutor &get();
/** Function that is responsible for executing tasks */
std::function<decltype(execute_task)> execute_function;
};
/** Execution task
*
* Contains all the information required to execute a given task
*/
struct ExecutionTask
{
ExecutionTask(std::unique_ptr<arm_compute::IFunction> &&f, INode *n)
: task(std::move(f)), node(n)
{
}
/** Prevent instances of this class from being copied (As this class contains pointers) */
ExecutionTask(const ExecutionTask &) = delete;
/** Prevent instances of this class from being copied (As this class contains pointers) */
ExecutionTask &operator=(const ExecutionTask &) = delete;
/** Default Move Constructor. */
ExecutionTask(ExecutionTask &&) noexcept = default;
/** Default move assignment operator */
ExecutionTask &operator=(ExecutionTask &&) noexcept = default;
/** Default destructor */
~ExecutionTask() = default;
// TODO (geopin01) : Support vector of functions?
std::unique_ptr<arm_compute::IFunction> task = {}; /**< Task to execute */
INode *node = {}; /**< Node bound to this workload */
/** Function operator */
void operator()();
/** Prepare execution task */
void prepare();
};
/** Execution workload */
struct ExecutionWorkload
{
std::vector<Tensor *> inputs = {}; /**< Input handles */
std::vector<Tensor *> outputs = {}; /**< Output handles */
std::vector<ExecutionTask> tasks = {}; /**< Execution workload */
Graph *graph = { nullptr }; /**< Graph bound to the workload */
GraphContext *ctx = { nullptr }; /**< Graph execution context */
};
} // namespace graph
} // namespace arm_compute
#endif /* ARM_COMPUTE_GRAPH_WORKLOAD_H */
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