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use super::{ButtplugServer, ButtplugServerStartupError}; use crate::{ connector::ButtplugConnector, core::{ errors::{ButtplugError, ButtplugServerError}, messages::{self, ButtplugClientMessage, ButtplugServerMessage}, }, server::{DeviceCommunicationManager, DeviceCommunicationManagerCreator}, test::TestDeviceCommunicationManagerHelper, util::async_manager, }; use async_channel::{bounded, Receiver, Sender}; use async_mutex::Mutex; use futures::{future::Future, select, FutureExt, StreamExt}; use std::sync::Arc; use thiserror::Error; pub enum ButtplugRemoteServerEvent { Connected(String), DeviceAdded(u32, String), DeviceRemoved(u32), Disconnected, } #[derive(Error, Debug)] pub enum ButtplugServerConnectorError { #[error("Can't connect")] ConnectorError, } pub enum ButtplugServerCommand { Disconnect, } pub struct ButtplugRemoteServer { server: Arc<ButtplugServer>, server_receiver: Receiver<ButtplugServerMessage>, pub(super) event_sender: Sender<ButtplugRemoteServerEvent>, task_channel: Arc<Mutex<Option<Sender<ButtplugServerCommand>>>>, } async fn run_server<ConnectorType>( server: Arc<ButtplugServer>, remote_event_sender: Sender<ButtplugRemoteServerEvent>, mut server_receiver: Receiver<ButtplugServerMessage>, connector: ConnectorType, mut connector_receiver: Receiver<Result<ButtplugClientMessage, ButtplugServerError>>, mut controller_receiver: Receiver<ButtplugServerCommand>, ) where ConnectorType: ButtplugConnector<ButtplugServerMessage, ButtplugClientMessage> + 'static, { info!("Starting remote server loop"); let shared_connector = Arc::new(connector); loop { select! { connector_msg = connector_receiver.next().fuse() => match connector_msg { None => { info!("Connector disconnected, exiting loop."); break; } Some(msg) => { info!("Got message from connector: {:?}", msg); let server_clone = server.clone(); let connector_clone = shared_connector.clone(); let remote_event_sender_clone = remote_event_sender.clone(); async_manager::spawn(async move { let client_message = msg.unwrap(); match server_clone.parse_message(client_message.clone()).await { Ok(ret_msg) => { if let ButtplugClientMessage::RequestServerInfo(rsi) = client_message { remote_event_sender_clone.send(ButtplugRemoteServerEvent::Connected(rsi.client_name)).await.unwrap(); } if connector_clone.send(ret_msg).await.is_err() { error!("Cannot send reply to server, dropping and assuming remote server thread has exited."); } }, Err(err_msg) => { if connector_clone.send(messages::Error::from(err_msg).into()).await.is_err() { error!("Cannot send reply to server, dropping and assuming remote server thread has exited."); } } } }).unwrap(); } }, controller_msg = controller_receiver.next().fuse() => match controller_msg { None => { info!("Server disconnected via controller request, exiting loop."); break; } Some(msg) => { info!("Server disconnected via controller disappearance, exiting loop."); break; } }, server_msg = server_receiver.next().fuse() => match server_msg { None => { info!("Server disconnected via server disappearance, exiting loop."); break; } Some(msg) => { match &msg { ButtplugServerMessage::DeviceAdded(da) => { remote_event_sender.send(ButtplugRemoteServerEvent::DeviceAdded(da.device_index, da.device_name.clone())).await.unwrap(); }, ButtplugServerMessage::DeviceRemoved(dr) => { remote_event_sender.send(ButtplugRemoteServerEvent::DeviceRemoved(dr.device_index)).await.unwrap(); }, _ => {} } let connector_clone = shared_connector.clone(); if connector_clone.send(msg).await.is_err() { error!("Server disappeared, exiting remote server thread."); } } }, }; } if let Err(err) = server.disconnect().await { error!("Error disconnecting server: {:?}", err); } info!("Exiting remote server loop"); } impl ButtplugRemoteServer { pub fn new(name: &str, max_ping_time: u64) -> (Self, Receiver<ButtplugRemoteServerEvent>) { let (server, server_receiver) = ButtplugServer::new(name, max_ping_time); let (remote_event_sender, remote_event_receiver) = bounded(256); ( Self { event_sender: remote_event_sender, server: Arc::new(server), server_receiver, task_channel: Arc::new(Mutex::new(None)), }, remote_event_receiver, ) } pub fn start<ConnectorType>( &self, mut connector: ConnectorType, ) -> impl Future<Output = Result<(), ButtplugServerConnectorError>> where ConnectorType: ButtplugConnector<ButtplugServerMessage, ButtplugClientMessage> + 'static, { let task_channel = self.task_channel.clone(); let server_clone = self.server.clone(); let server_receiver_clone = self.server_receiver.clone(); let event_sender_clone = self.event_sender.clone(); async move { let connector_receiver = connector .connect() .await .map_err(|_| ButtplugServerConnectorError::ConnectorError)?; let (controller_sender, controller_receiver) = bounded(256); let mut locked_channel = task_channel.lock().await; *locked_channel = Some(controller_sender); run_server( server_clone, event_sender_clone, server_receiver_clone, connector, connector_receiver, controller_receiver, ) .await; Ok(()) } } pub async fn disconnect(&self) -> Result<(), ButtplugError> { Ok(()) } pub fn add_comm_manager<T>(&self) -> Result<(), ButtplugServerStartupError> where T: 'static + DeviceCommunicationManager + DeviceCommunicationManagerCreator, { self.server.add_comm_manager::<T>() } pub fn add_test_comm_manager( &self, ) -> Result<TestDeviceCommunicationManagerHelper, ButtplugServerStartupError> { self.server.add_test_comm_manager() } }