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//
// Copyright © 2017 Arm Ltd. All rights reserved.
// SPDX-License-Identifier: MIT
//
#pragma once
#include <armnn/Types.hpp>
#include <functional>
#include <memory>
#include <unordered_map>
namespace armnn
{
class IBackend;
class BackendRegistry
{
public:
using FactoryFunction = std::function<IBackendUniquePtr()>;
static BackendRegistry& Instance();
void Register(const BackendId& id, FactoryFunction factory);
FactoryFunction GetFactory(const BackendId& id) const;
struct Helper
{
Helper(const BackendId& id, FactoryFunction factory)
{
BackendRegistry::Instance().Register(id, factory);
}
};
size_t Size() const { return m_BackendFactories.size(); }
BackendIdSet GetBackendIds() const;
protected:
using FactoryStorage = std::unordered_map<BackendId, FactoryFunction>;
// For testing only
static void Swap(FactoryStorage& other);
BackendRegistry() {}
~BackendRegistry() {}
private:
BackendRegistry(const BackendRegistry&) = delete;
BackendRegistry& operator=(const BackendRegistry&) = delete;
FactoryStorage m_BackendFactories;
};
} // namespace armnn
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