Merge "Floss: Implement (Un)RegisterScannerCallback" (cecdd40b) · Commits · e / os / android_packages_modules_Bluetooth

system/gd/rust/linux/client/src/dbus_iface.rs

+7 −7

Original line number	Diff line number	Diff line
		@@ -19,7 +19,7 @@ use btstack::uuid::Profile;
		use dbus::arg::RefArg;
		use dbus::nonblock::SyncConnection;

		use dbus_projection::{impl_dbus_arg_enum, ClientDBusProxy, DisconnectWatcher};
		use dbus_projection::{dbus_generated, impl_dbus_arg_enum, ClientDBusProxy, DisconnectWatcher};

		use dbus_macros::{
		dbus_method, dbus_propmap, generate_dbus_exporter, generate_dbus_interface_client,
		@@ -549,20 +549,20 @@ impl BluetoothGattDBus {

		#[generate_dbus_interface_client]
		impl IBluetoothGatt for BluetoothGattDBus {
		fn register_scanner(&self, _callback: Box<dyn IScannerCallback + Send>) {
		// TODO(b/200066804): implement
		fn register_scanner_callback(&mut self, _callback: Box<dyn IScannerCallback + Send>) -> u32 {
		dbus_generated!()
		}

		fn unregister_scanner(&self, _scanner_id: i32) {
		// TODO(b/200066804): implement
		fn unregister_scanner_callback(&mut self, _scanner_id: u32) -> bool {
		dbus_generated!()
		}

		fn start_scan(&self, _scanner_id: i32, _settings: ScanSettings, _filters: Vec<ScanFilter>) {
		// TODO(b/200066804): implement
		dbus_generated!()
		}

		fn stop_scan(&self, _scanner_id: i32) {
		// TODO(b/200066804): implement
		dbus_generated!()
		}

		#[dbus_method("RegisterClient")]

system/gd/rust/linux/service/src/iface_bluetooth_gatt.rs

+4 −4

Original line number	Diff line number	Diff line
		@@ -202,13 +202,13 @@ struct IBluetoothGattDBus {}

		#[generate_dbus_exporter(export_bluetooth_gatt_dbus_intf, "org.chromium.bluetooth.BluetoothGatt")]
		impl IBluetoothGatt for IBluetoothGattDBus {
		#[dbus_method("RegisterScanner")]
		fn register_scanner(&self, callback: Box<dyn IScannerCallback + Send>) {
		#[dbus_method("RegisterScannerCallback")]
		fn register_scanner_callback(&mut self, callback: Box<dyn IScannerCallback + Send>) -> u32 {
		dbus_generated!()
		}

		#[dbus_method("UnregisterScanner")]
		fn unregister_scanner(&self, scanner_id: i32) {
		#[dbus_method("UnregisterScannerCallback")]
		fn unregister_scanner_callback(&mut self, scanner_id: u32) -> bool {
		dbus_generated!()
		}

system/gd/rust/linux/service/src/main.rs

+2 −1

Original line number	Diff line number	Diff line
		@@ -80,7 +80,8 @@ fn main() -> Result<(), Box<dyn Error>> {

		let intf = Arc::new(Mutex::new(get_btinterface().unwrap()));
		let suspend = Arc::new(Mutex::new(Box::new(Suspend::new(intf.clone(), tx.clone()))));
		let bluetooth_gatt = Arc::new(Mutex::new(Box::new(BluetoothGatt::new(intf.clone()))));
		let bluetooth_gatt =
		Arc::new(Mutex::new(Box::new(BluetoothGatt::new(intf.clone(), tx.clone()))));
		let bluetooth_media =
		Arc::new(Mutex::new(Box::new(BluetoothMedia::new(tx.clone(), intf.clone()))));
		let bluetooth = Arc::new(Mutex::new(Box::new(Bluetooth::new(

system/gd/rust/linux/stack/src/bluetooth_gatt.rs

+21 −9

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@ use std::collections::HashSet;
		use std::sync::{Arc, Mutex};
		use tokio::sync::mpsc::Sender;

		use crate::callbacks::Callbacks;
		use crate::{Message, RPCProxy};

		struct Client {
		@@ -137,9 +138,13 @@ impl ContextMap {

		/// Defines the GATT API.
		pub trait IBluetoothGatt {
		fn register_scanner(&self, callback: Box<dyn IScannerCallback + Send>);
		/// Registers an LE scanner callback.
		///
		/// Returns the callback id.
		fn register_scanner_callback(&mut self, callback: Box<dyn IScannerCallback + Send>) -> u32;

		fn unregister_scanner(&self, scanner_id: i32);
		/// Unregisters an LE scanner callback identified by the given id.
		fn unregister_scanner_callback(&mut self, scanner_id: u32) -> bool;

		fn start_scan(&self, scanner_id: i32, settings: ScanSettings, filters: Vec<ScanFilter>);
		fn stop_scan(&self, scanner_id: i32);
		@@ -400,8 +405,9 @@ pub trait IBluetoothGattCallback: RPCProxy {
		fn on_service_changed(&self, addr: String);
		}

		/// Interface for scanner callbacks to clients, passed to `IBluetoothGatt::register_scanner`.
		pub trait IScannerCallback {
		/// Interface for scanner callbacks to clients, passed to
		/// `IBluetoothGatt::register_scanner_callback`.
		pub trait IScannerCallback: RPCProxy {
		/// When the `register_scanner` request is done.
		fn on_scanner_registered(&self, status: i32, scanner_id: i32);
		}
		@@ -485,16 +491,18 @@ pub struct BluetoothGatt {

		context_map: ContextMap,
		reliable_queue: HashSet<String>,
		callbacks: Callbacks<dyn IScannerCallback + Send>,
		}

		impl BluetoothGatt {
		/// Constructs a new IBluetoothGatt implementation.
		pub fn new(intf: Arc<Mutex<BluetoothInterface>>) -> BluetoothGatt {
		pub fn new(intf: Arc<Mutex<BluetoothInterface>>, tx: Sender<Message>) -> BluetoothGatt {
		BluetoothGatt {
		intf: intf,
		gatt: None,
		context_map: ContextMap::new(),
		reliable_queue: HashSet::new(),
		callbacks: Callbacks::new(tx.clone(), Message::ScannerCallbackDisconnected),
		}
		}

		@@ -522,6 +530,10 @@ impl BluetoothGatt {
		},
		);
		}

		pub fn remove_scanner_callback(&mut self, id: u32) -> bool {
		self.callbacks.remove_callback(id)
		}
		}

		// Temporary util that covers only basic string conversion.
		@@ -556,12 +568,12 @@ pub enum GattWriteRequestStatus {
		}

		impl IBluetoothGatt for BluetoothGatt {
		fn register_scanner(&self, _callback: Box<dyn IScannerCallback + Send>) {
		// TODO(b/200066804): implement
		fn register_scanner_callback(&mut self, callback: Box<dyn IScannerCallback + Send>) -> u32 {
		self.callbacks.add_callback(callback)
		}

		fn unregister_scanner(&self, _scanner_id: i32) {
		// TODO(b/200066804): implement
		fn unregister_scanner_callback(&mut self, scanner_id: u32) -> bool {
		self.callbacks.remove_callback(scanner_id)
		}

		fn start_scan(&self, _scanner_id: i32, _settings: ScanSettings, _filters: Vec<ScanFilter>) {

system/gd/rust/linux/stack/src/callbacks.rs

0 → 100644

+75 −0

Original line number	Diff line number	Diff line
		//! Provides utilities for managing callbacks.

		use std::collections::HashMap;
		use tokio::sync::mpsc::Sender;

		use crate::{Message, RPCProxy};

		/// Utility for managing callbacks conveniently.
		pub struct Callbacks<T: Send + ?Sized> {
		callbacks: HashMap<u32, Box<T>>,
		tx: Sender<Message>,
		disconnected_message: fn(u32) -> Message,
		}

		impl<T: RPCProxy + Send + ?Sized> Callbacks<T> {
		/// Creates new Callbacks.
		///
		/// Parameters:
		/// `tx`: Sender to use when notifying callback disconnect events.
		/// `disconnected_message`: Constructor of the message to be sent on callback disconnection.
		pub fn new(tx: Sender<Message>, disconnected_message: fn(u32) -> Message) -> Self {
		Self { callbacks: HashMap::new(), tx, disconnected_message }
		}

		/// Stores a new callback and monitors for callback disconnect.
		///
		/// When the callback disconnects, a message is sent. This message should be handled and then
		/// the `remove_callback` function can be used.
		///
		/// Returns the id of the callback.
		pub fn add_callback(&mut self, mut callback: Box<T>) -> u32 {
		let tx = self.tx.clone();
		let disconnected_message = self.disconnected_message;
		let id = callback.register_disconnect(Box::new(move \|cb_id\| {
		let tx = tx.clone();
		tokio::spawn(async move {
		let _result = tx.send(disconnected_message(cb_id)).await;
		});
		}));

		self.callbacks.insert(id, callback);
		id
		}

		/// Removes the callback given the id.
		///
		/// When a callback is removed, disconnect monitoring is stopped and the proxy object is
		/// removed.
		///
		/// Returns true if callback is removed, false if there is no such id.
		pub fn remove_callback(&mut self, id: u32) -> bool {
		match self.callbacks.get_mut(&id) {
		Some(callback) => {
		// Stop watching for disconnect.
		callback.unregister(id);
		// Remove the proxy object.
		self.callbacks.remove(&id);
		true
		}
		None => false,
		}
		}

		/// Returns the callback object based on the given id.
		pub fn get_by_id(&mut self, id: u32) -> Option<&mut Box<T>> {
		self.callbacks.get_mut(&id)
		}

		/// Applies the given function on all active callbacks.
		pub fn for_all_callbacks<F: Fn(&Box<T>)>(&self, f: F) {
		for (_, callback) in self.callbacks.iter() {
		f(&callback);
		}
		}
		}