Brad Bishop | c1283ae | 2017-05-20 21:42:38 -0400 | [diff] [blame] | 1 | #pragma once |
| 2 | |
| 3 | #include "data_types.hpp" |
| 4 | |
| 5 | namespace phosphor |
| 6 | { |
| 7 | namespace dbus |
| 8 | { |
| 9 | namespace monitoring |
| 10 | { |
| 11 | |
| 12 | /** @class Callback |
| 13 | * @brief Callback interface. |
| 14 | * |
| 15 | * Callbacks of any type can be run. |
| 16 | */ |
| 17 | class Callback |
| 18 | { |
| 19 | public: |
| 20 | Callback() = default; |
| 21 | Callback(const Callback&) = delete; |
| 22 | Callback(Callback&&) = default; |
| 23 | Callback& operator=(const Callback&) = delete; |
| 24 | Callback& operator=(Callback&&) = default; |
| 25 | virtual ~Callback() = default; |
| 26 | |
| 27 | /** @brief Run the callback. */ |
| 28 | virtual void operator()() = 0; |
| 29 | }; |
| 30 | |
| 31 | /** @class IndexedCallback |
| 32 | * @brief Callback with an index. |
| 33 | */ |
| 34 | class IndexedCallback : public Callback |
| 35 | { |
| 36 | public: |
| 37 | IndexedCallback() = delete; |
| 38 | IndexedCallback(const IndexedCallback&) = delete; |
| 39 | IndexedCallback(IndexedCallback&&) = default; |
| 40 | IndexedCallback& operator=(const IndexedCallback&) = delete; |
| 41 | IndexedCallback& operator=(IndexedCallback&&) = default; |
| 42 | virtual ~IndexedCallback() = default; |
| 43 | explicit IndexedCallback(const PropertyIndex& callbackIndex) |
| 44 | : Callback(), index(callbackIndex) {} |
| 45 | |
| 46 | /** @brief Run the callback. */ |
| 47 | virtual void operator()() override = 0; |
| 48 | |
| 49 | protected: |
| 50 | |
| 51 | /** @brief Property names and their associated storage. */ |
| 52 | const PropertyIndex& index; |
| 53 | }; |
| 54 | |
Brad Bishop | 49e6617 | 2017-05-23 19:16:21 -0400 | [diff] [blame] | 55 | /** @class GroupOfCallbacks |
| 56 | * @brief Invoke multiple callbacks. |
| 57 | * |
| 58 | * A group of callbacks is implemented as a vector of array indicies |
| 59 | * into an external array of callbacks. The group function call |
| 60 | * operator traverses the vector of indicies, invoking each |
| 61 | * callback. |
| 62 | * |
| 63 | * @tparam CallbackAccess - Access to the array of callbacks. |
| 64 | */ |
| 65 | template <typename CallbackAccess> |
| 66 | class GroupOfCallbacks : public Callback |
| 67 | { |
| 68 | public: |
| 69 | GroupOfCallbacks() = delete; |
| 70 | GroupOfCallbacks(const GroupOfCallbacks&) = delete; |
| 71 | GroupOfCallbacks(GroupOfCallbacks&&) = default; |
| 72 | GroupOfCallbacks& operator=(const GroupOfCallbacks&) = delete; |
| 73 | GroupOfCallbacks& operator=(GroupOfCallbacks&&) = default; |
| 74 | ~GroupOfCallbacks() = default; |
| 75 | explicit GroupOfCallbacks( |
| 76 | const std::vector<size_t>& graphEntry) |
| 77 | : graph(graphEntry) {} |
| 78 | |
| 79 | /** @brief Run the callbacks. */ |
| 80 | void operator()() override |
| 81 | { |
| 82 | for (auto e : graph) |
| 83 | { |
| 84 | (*CallbackAccess::get()[e])(); |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | private: |
| 89 | /** @brief The offsets of the callbacks in the group. */ |
| 90 | const std::vector<size_t>& graph; |
| 91 | }; |
| 92 | |
Brad Bishop | c1283ae | 2017-05-20 21:42:38 -0400 | [diff] [blame] | 93 | } // namespace monitoring |
| 94 | } // namespace dbus |
| 95 | } // namespace phosphor |