130 lines
3.7 KiB
C++
130 lines
3.7 KiB
C++
// Copyright (C) 2018-2021 Intel Corporation
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// SPDX-License-Identifier: Apache-2.0
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//
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/**
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* @brief A header file that defines a wrapper class for handling extension instantiation and releasing resources
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*
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* @file ie_extension.h
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*/
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#pragma once
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#include <map>
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#include <memory>
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#include <string>
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#include <vector>
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#include "ie_iextension.h"
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#include "details/ie_so_pointer.hpp"
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namespace InferenceEngine {
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namespace details {
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/**
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* @brief The SOCreatorTrait class specialization for IExtension case, defines the name of the fabric method for
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* creating IExtension object in DLL
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*/
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template <>
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class SOCreatorTrait<IExtension> {
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public:
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/**
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* @brief A name of the fabric method for creating an IExtension object in DLL
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*/
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static constexpr auto name = "CreateExtension";
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};
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} // namespace details
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/**
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* @brief This class is a C++ helper to work with objects created using extensions.
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*/
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class INFERENCE_ENGINE_API_CLASS(Extension) final : public IExtension {
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public:
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/**
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* @brief Loads extension from a shared library
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*
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* @param name Full or relative path to extension library
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*/
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template <typename C,
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typename = details::enableIfSupportedChar<C>>
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explicit Extension(const std::basic_string<C>& name): actual(name) {}
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/**
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* @brief Gets the extension version information
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*
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* @param versionInfo A pointer to version info, set by the plugin
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*/
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void GetVersion(const InferenceEngine::Version*& versionInfo) const noexcept override {
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actual->GetVersion(versionInfo);
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}
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/**
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* @brief Cleans the resources up
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*/
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void Unload() noexcept override {
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actual->Unload();
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}
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/**
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* @brief Returns operation sets
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* This method throws an exception if it was not implemented
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* @return map of opset name to opset
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*/
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std::map<std::string, ngraph::OpSet> getOpSets() override;
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/**
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* @brief Returns vector of implementation types
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* @param node shared pointer to nGraph op
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* @return vector of strings
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*/
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std::vector<std::string> getImplTypes(const std::shared_ptr<ngraph::Node>& node) override {
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if (node == nullptr) IE_THROW() << "Provided ngraph::Node pointer is nullptr.";
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return actual->getImplTypes(node);
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}
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/**
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* @brief Returns implementation for specific nGraph op
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* @param node shared pointer to nGraph op
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* @param implType implementation type
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* @return shared pointer to implementation
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*/
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ILayerImpl::Ptr getImplementation(const std::shared_ptr<ngraph::Node>& node, const std::string& implType) override {
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if (node == nullptr) IE_THROW() << "Provided ngraph::Node pointer is nullptr.";
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return actual->getImplementation(node, implType);
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}
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protected:
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/**
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* @brief A SOPointer instance to the loaded templated object
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*/
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details::SOPointer<IExtension> actual;
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};
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/**
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* @brief Creates extension using deprecated API
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* @tparam T extension type
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* @param name extension library name
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* @return shared pointer to extension
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*/
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template<typename T = IExtension>
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INFERENCE_ENGINE_DEPRECATED("Use std::make_shared<Extension>")
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inline std::shared_ptr<T> make_so_pointer(const std::string& name) {
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return std::make_shared<Extension>(name);
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}
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#ifdef ENABLE_UNICODE_PATH_SUPPORT
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/**
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* @brief Creates extension using deprecated API
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* @param name extension library name
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* @return shared pointer to extension
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*/
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template<typename T = IExtension>
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INFERENCE_ENGINE_DEPRECATED("Use std::make_shared<Extension>")
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inline std::shared_ptr<IExtension> make_so_pointer(const std::wstring& name) {
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return std::make_shared<Extension>(name);
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}
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#endif
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} // namespace InferenceEngine
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