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/*
* Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __NEURUN_BACKEND_BACKEND_MANAGER_H__
#define __NEURUN_BACKEND_BACKEND_MANAGER_H__
#include <memory>
#include <map>
#include "model/operand/Set.h"
namespace neurun
{
namespace backend
{
struct IConfig;
struct IStageGenerator;
struct ITensorBuilder;
class Backend
{
public:
Backend(const std::shared_ptr<neurun::backend::IConfig> &backend_config,
const std::shared_ptr<neurun::backend::IStageGenerator> &stage_gen);
Backend(void) : _config(nullptr), _stage_gen(nullptr)
{
// DO NOTHING
}
public:
const std::shared_ptr<neurun::backend::IConfig> config() const;
const std::shared_ptr<neurun::backend::IStageGenerator> stage_gen() const;
const std::shared_ptr<neurun::backend::ITensorBuilder> tensor_builder() const;
private:
std::shared_ptr<neurun::backend::IConfig> _config;
std::shared_ptr<neurun::backend::IStageGenerator> _stage_gen;
};
class BackendManager
{
public:
BackendManager(const neurun::model::operand::Set &operands);
Backend *get(const std::string &key);
private:
std::map<std::string, Backend> _gen_map;
/**
* @brief Allocate an object of a class of a plugin by loading a plugin function, that does
* allocation, and calling it
*
* @param object_of_plugin_class target object
* @param obj_creator_func_name name of the plugin function, that allocates an object
* @param handle handle of the plugin
* @param args arguments to pass to constructor of the plugin class
*
* @return
*/
template <typename T, class... Types>
void loadObjectFromPlugin(std::shared_ptr<T> &object_of_plugin_class,
const std::string obj_creator_func_name, void *handle,
Types &&... args);
/**
* @brief load backend plugin
*
* @param backend backend to be loaded
* @param operands operands to construct StageGenerator
*
* @return
*/
void loadBackend(const std::string &backend, const neurun::model::operand::Set &operands);
};
} // namespace backend
} // namespace neurun
#endif // __NEURUN_BACKEND_BACKEND_MANAGER_H__
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