diff options
Diffstat (limited to 'kapi')
| -rw-r--r-- | kapi/kapi/devices/device_registry.hpp | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/kapi/kapi/devices/device_registry.hpp b/kapi/kapi/devices/device_registry.hpp index 3952db66..a65bd4ad 100644 --- a/kapi/kapi/devices/device_registry.hpp +++ b/kapi/kapi/devices/device_registry.hpp @@ -18,12 +18,36 @@ namespace kapi::devices //! @addtogroup kapi-devices-kernel-defined //! @{ + //! The interface for types interested in being notified about changes in the device registry. + struct device_registry_observer + { + //! Enable correct destruction through base pointers. + virtual ~device_registry_observer() = default; + + //! Called after a device has been added to the registry. + //! + //! @param device The device that was added. + virtual auto on_device_added(kstd::shared_ptr<device> const & device) -> void = 0; + + //! Called after a device has been removed from the registry. + //! + //! @param device The device that was remove. + virtual auto on_device_removed(device & device) -> void = 0; + }; + + //! @} + + //! @addtogroup kapi-devices-kernel-defined + //! @{ + struct device_registry { device_registry() = default; + //! Initialize the global singleton registry instance. auto static init() -> void; + //! Get the global singleton registry instance. auto static get() -> device_registry &; //! Add a new device to the kernel's device registry. @@ -49,8 +73,14 @@ namespace kapi::devices //! @return every device current reachable through the registry. [[nodiscard]] auto all() const -> kstd::vector<kstd::shared_ptr<device>>; + //! Subscribe to device registry notifications. + //! + //! @param observer The observer to notify. + auto subscribe(kstd::weak_ptr<device_registry_observer> observer) -> void; + private: kstd::flat_map<kstd::string, kstd::weak_ptr<device>> m_devices{}; + kstd::vector<kstd::weak_ptr<device_registry_observer>> m_observers{}; }; //! @} |