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|
//! Bluetooth testing root facade service
use bluetooth_rs::hal::facade::HciHalFacadeService;
use bluetooth_rs::hci::controller_facade::ControllerFacadeService;
use bluetooth_rs::hci::facade::HciFacadeService;
use bluetooth_rs::Stack;
use bt_facade_proto::rootservice::*;
use bt_facade_proto::rootservice_grpc::{create_root_facade, RootFacade};
use futures::executor::block_on;
use grpcio::*;
use std::sync::Arc;
use tokio::runtime::Runtime;
use tokio::sync::mpsc::{channel, Sender};
use tokio::sync::oneshot;
/// Bluetooth testing root facade service
#[derive(Clone)]
pub struct RootFacadeService {
rt: Arc<Runtime>,
manager: FacadeServiceManager,
}
impl RootFacadeService {
/// Create a new instance of the root facade service
pub fn create(
rt: Arc<Runtime>,
grpc_port: u16,
rootcanal_port: Option<u16>,
snoop_path: Option<String>,
) -> grpcio::Service {
create_root_facade(Self {
rt: rt.clone(),
manager: FacadeServiceManager::create(rt, grpc_port, rootcanal_port, snoop_path),
})
}
}
impl RootFacade for RootFacadeService {
fn start_stack(
&mut self,
_ctx: RpcContext<'_>,
req: StartStackRequest,
sink: UnarySink<StartStackResponse>,
) {
self.rt.block_on(self.manager.start(req)).unwrap();
sink.success(StartStackResponse::default());
}
fn stop_stack(
&mut self,
_ctx: RpcContext<'_>,
_req: StopStackRequest,
sink: UnarySink<StopStackResponse>,
) {
self.rt.block_on(self.manager.stop()).unwrap();
sink.success(StopStackResponse::default());
}
}
#[derive(Debug)]
enum LifecycleCommand {
Start { req: StartStackRequest, done: oneshot::Sender<()> },
Stop { done: oneshot::Sender<()> },
}
#[derive(Clone)]
struct FacadeServiceManager {
lifecycle_tx: Sender<LifecycleCommand>,
}
struct FacadeServer {
server: Server,
stack: Stack,
}
impl FacadeServer {
async fn start(stack: Stack, req: StartStackRequest, grpc_port: u16) -> Self {
let mut services = Vec::new();
match req.get_module_under_test() {
BluetoothModule::HAL => {
services.push(stack.get_grpc::<HciHalFacadeService>().await);
}
BluetoothModule::HCI | BluetoothModule::HCI_INTERFACES => {
services.push(stack.get_grpc::<HciFacadeService>().await);
services.push(stack.get_grpc::<ControllerFacadeService>().await);
}
_ => unimplemented!(),
}
let env = Arc::new(Environment::new(2));
let mut builder = ServerBuilder::new(env).bind("0.0.0.0", grpc_port);
for service in services {
builder = builder.register_service(service);
}
let mut server = builder.build().unwrap();
server.start();
Self { server, stack }
}
async fn stop(&mut self) {
self.server.shutdown().await.unwrap();
self.stack.stop().await;
}
}
/// Result type
type Result<T> = std::result::Result<T, Box<dyn std::error::Error + Send + Sync>>;
impl FacadeServiceManager {
fn create(
rt: Arc<Runtime>,
grpc_port: u16,
rootcanal_port: Option<u16>,
snoop_path: Option<String>,
) -> Self {
let (tx, mut rx) = channel::<LifecycleCommand>(1);
let local_rt = rt.clone();
rt.spawn(async move {
let mut server: Option<FacadeServer> = None;
while let Some(cmd) = rx.recv().await {
match cmd {
LifecycleCommand::Start { req, done } => {
let stack = Stack::new(local_rt.clone()).await;
stack.set_rootcanal_port(rootcanal_port).await;
stack.configure_snoop(snoop_path.clone()).await;
server = Some(FacadeServer::start(stack, req, grpc_port).await);
done.send(()).unwrap();
}
LifecycleCommand::Stop { done } => {
if let Some(s) = &mut server {
block_on(s.stop());
server = None;
}
done.send(()).unwrap();
}
}
}
});
Self { lifecycle_tx: tx }
}
async fn start(&self, req: StartStackRequest) -> Result<()> {
let (tx, rx) = oneshot::channel();
self.lifecycle_tx.send(LifecycleCommand::Start { req, done: tx }).await?;
rx.await?;
Ok(())
}
async fn stop(&self) -> Result<()> {
let (tx, rx) = oneshot::channel();
self.lifecycle_tx.send(LifecycleCommand::Stop { done: tx }).await?;
rx.await?;
Ok(())
}
}
|
