Ashin Walpola
d107534eb2
obu-firmware builds against the vanetza-idf C-ITS library, which until now came from the colleague's microbu-esp32c5 tree beside the repository and was not tracked here, so a clone of this repository could not build the firmware it ships. The library alone is now part of obu-firmware, as obu-firmware/external/vanetza-idf: their external/vanetza-idf at commit cf4b99f, unchanged (9775 files; see its PROVENANCE.md). CMake takes it from there by default; -DVANETZA_IDF_DIR still points the build elsewhere. The rest of the colleague's tree (their own VAM firmware, PKI tooling, station-link Python tools, the V2X2MAP bridge) stays out of this repository and gitignored; nothing is pushed to their repository. NOTES.md, docs/06, TODO.md and the pcap verifier's usage line point at the new location.
112 lines
2.7 KiB
C++
112 lines
2.7 KiB
C++
#ifndef OBJECT_CONTAINER_HPP_25SOHVUH
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#define OBJECT_CONTAINER_HPP_25SOHVUH
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#include <functional>
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#include <map>
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#include <memory>
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#include <typeindex>
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#include <type_traits>
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namespace vanetza
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{
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class ObjectContainer
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{
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private:
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struct object_handle
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{
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template<typename T>
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object_handle(std::unique_ptr<T> obj) :
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object(obj.release()),
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deleter([](void* ptr) { std::default_delete<T>()(static_cast<T*>(ptr)); })
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{
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}
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~object_handle() {
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deleter(object);
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object = nullptr;
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}
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void* object;
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std::function<void(void*)> deleter;
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};
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using container_type = std::map<std::type_index, object_handle>;
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public:
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ObjectContainer() = default;
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// no copy
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ObjectContainer(const ObjectContainer&) = delete;
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ObjectContainer& operator=(const ObjectContainer&) = delete;
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// allow move
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ObjectContainer(ObjectContainer&&) = default;
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ObjectContainer& operator=(ObjectContainer&&) = default;
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bool empty() const { return m_container.empty(); }
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std::size_t size() const { return m_container.size(); }
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void clear() { m_container.clear(); }
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template<typename T>
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void erase()
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{
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m_container.erase(std::type_index(typeid(T)));
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}
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template<typename T>
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T* find()
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{
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T* result = nullptr;
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auto found = m_container.find(std::type_index(typeid(T)));
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if (found != m_container.end()) {
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result = static_cast<T*>(found->second.object);
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}
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return result;
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}
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template<typename T>
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const T* find() const
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{
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const T* result = nullptr;
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auto found = m_container.find(std::type_index(typeid(T)));
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if (found != m_container.end()) {
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result = static_cast<const T*>(found->second.object);
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}
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return result;
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}
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template<typename T>
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bool insert(std::unique_ptr<T> obj)
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{
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static_assert(std::is_object<T>() && !std::is_const<T>(),
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"Only non-const objects are supported by ObjectContainer");
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return m_container.emplace(std::type_index(typeid(T)), std::move(obj)).second;
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}
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template<typename T>
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T& get()
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{
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static_assert(std::is_default_constructible<T>(),
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"Only default constructible types are accessible through ObjectContainer::get");
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T* result = find<T>();
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if (!result) {
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std::unique_ptr<T> obj { new T() };
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result = obj.get();
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if (!insert(std::move(obj)))
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result = nullptr;
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}
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assert(result);
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return *result;
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}
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private:
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container_type m_container;
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};
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} // namespace vanetza
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#endif /* OBJECT_CONTAINER_HPP_25SOHVUH */
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