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|
//! Adapter service facade
use bt_topshim::btif;
use bt_topshim::btif::{BaseCallbacks, BaseCallbacksDispatcher, BluetoothInterface};
use bt_topshim_facade_protobuf::empty::Empty;
use bt_topshim_facade_protobuf::facade::{
EventType, FetchEventsRequest, FetchEventsResponse, SetDiscoveryModeRequest,
SetDiscoveryModeResponse, ToggleStackRequest, ToggleStackResponse,
};
use bt_topshim_facade_protobuf::facade_grpc::{create_adapter_service, AdapterService};
use futures::sink::SinkExt;
use grpcio::*;
use std::sync::{Arc, Mutex};
use tokio::runtime::Runtime;
use tokio::sync::mpsc;
use tokio::sync::Mutex as TokioMutex;
fn get_bt_dispatcher(
btif: Arc<Mutex<BluetoothInterface>>,
tx: mpsc::Sender<BaseCallbacks>,
) -> BaseCallbacksDispatcher {
BaseCallbacksDispatcher {
dispatch: Box::new(move |cb: BaseCallbacks| {
if tx.clone().try_send(cb.clone()).is_err() {
println!("Cannot send event {:?}", cb);
}
match cb {
BaseCallbacks::AdapterState(state) => {
println!("State changed to {:?}", state);
}
BaseCallbacks::SspRequest(addr, _, _, variant, passkey) => {
btif.lock().unwrap().ssp_reply(&addr, variant, 1, passkey);
}
_ => (),
}
}),
}
}
/// Main object for Adapter facade service
#[derive(Clone)]
pub struct AdapterServiceImpl {
#[allow(dead_code)]
rt: Arc<Runtime>,
btif_intf: Arc<Mutex<BluetoothInterface>>,
event_rx: Arc<TokioMutex<mpsc::Receiver<BaseCallbacks>>>,
#[allow(dead_code)]
event_tx: mpsc::Sender<BaseCallbacks>,
}
impl AdapterServiceImpl {
/// Create a new instance of the root facade service
pub fn create(rt: Arc<Runtime>, btif_intf: Arc<Mutex<BluetoothInterface>>) -> grpcio::Service {
let (event_tx, rx) = mpsc::channel(10);
btif_intf.lock().unwrap().initialize(
get_bt_dispatcher(btif_intf.clone(), event_tx.clone()),
vec!["INIT_gd_hci=true".to_string()],
);
create_adapter_service(Self {
rt,
btif_intf,
event_rx: Arc::new(TokioMutex::new(rx)),
event_tx,
})
}
}
impl AdapterService for AdapterServiceImpl {
fn fetch_events(
&mut self,
ctx: RpcContext<'_>,
_req: FetchEventsRequest,
mut sink: ServerStreamingSink<FetchEventsResponse>,
) {
let rx = self.event_rx.clone();
ctx.spawn(async move {
while let Some(event) = rx.lock().await.recv().await {
match event {
BaseCallbacks::AdapterState(_state) => {
let mut rsp = FetchEventsResponse::new();
rsp.event_type = EventType::ADAPTER_STATE;
rsp.data = "ON".to_string();
sink.send((rsp, WriteFlags::default())).await.unwrap();
}
BaseCallbacks::SspRequest(_, _, _, _, _) => {}
_ => (),
}
}
})
}
fn toggle_stack(
&mut self,
ctx: RpcContext<'_>,
req: ToggleStackRequest,
sink: UnarySink<ToggleStackResponse>,
) {
match req.start_stack {
true => self.btif_intf.lock().unwrap().enable(),
false => self.btif_intf.lock().unwrap().disable(),
};
ctx.spawn(async move {
sink.success(ToggleStackResponse::default()).await.unwrap();
})
}
fn set_discovery_mode(
&mut self,
ctx: RpcContext<'_>,
_req: SetDiscoveryModeRequest,
sink: UnarySink<SetDiscoveryModeResponse>,
) {
self.btif_intf.lock().unwrap().set_adapter_property(
btif::BluetoothProperty::AdapterScanMode(btif::BtScanMode::Connectable),
);
ctx.spawn(async move {
sink.success(SetDiscoveryModeResponse::default()).await.unwrap();
})
}
fn clear_event_filter(&mut self, ctx: RpcContext<'_>, _req: Empty, sink: UnarySink<Empty>) {
self.btif_intf.lock().unwrap().clear_event_filter();
ctx.spawn(async move {
sink.success(Empty::default()).await.unwrap();
})
}
}
|
