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                CommandBody::List {                } => cmd.lsub(reference, mailbox_wildcard).await,                    mailbox_wildcard,                    reference,                CommandBody::Lsub {                CommandBody::Login { username, password } => cmd.login(username, password).await,                CommandBody::Capability => cmd.capability().await,            let res = match msg.req.body {            let mut cmd = command::Command::new(msg.req.tag, self);        while let Some(msg) = self.rx.recv().await {        tracing::debug!("starting runner");        //@FIXME add more info about the runner    async fn start(&mut self) {    // fn name(&self) -> String { }    // to ease debug    //@FIXME add a function that compute the runner's name from its local info    }        }            user: None,            selected: None,            rx,            mailstore,        Self {    fn new(mailstore: Arc<Mailstore>, rx: mpsc::Receiver<Message>) -> Self {impl Instance {}    pub user    pub lo    pub login_provider: Arc<dyn LoginProvider + Send + Sync>,    rx: mpsc::Receiver<Message>,pub struct Instance {}    pub creds: Credentials,    pub name: String,pub struct User {}    }        .boxed()        }            }                }                    Response::bad("No response from the session handler")                    tracing::warn!("Got error {:#?}", e);                Err(e) => {                Ok(r) => r,            match rx.await {        async {        // @FIXME add a timeout, handle a session that fails.        };            }                return async { Response::bad("The session task has exited") }.boxed()            Err(TrySendError::Closed(_)) => {            }                return async { Response::bad("Too fast! Send less pipelined requests!") }.boxed()            Err(TrySendError::Full(_)) => {            Ok(()) => (),        match self.tx.try_send(msg) {        // will probably be malicious so we "rate limit" them.        // and in a limited number (like 3 requests). Someone filling the channel        // Pipelining requests in IMAP are a special case: they should not occure often        // We use try_send on a bounded channel to protect the daemons from DoS.        let msg = Message { req, tx };        let (tx, rx) = oneshot::channel();    pub fn process(&self, req: Request) -> BoxFuture<'static, Result<Response, BalError>> {    }        Self { tx }        });            instance.start().await;            let mut instance = Instance::new(login_provider, rx);        tokio::spawn(async move {        let (tx, rx) = mpsc::channel(MAX_PIPELINED_COMMANDS);    pub fn new(login_provider: Arc<dyn LoginProvider + Send + Sync>) -> Self {impl Manager {//@FIXME we should garbage collect the Instance when the Manager is destroyed.}    tx: mpsc::Sender<Message>,pub struct Manager {}    tx: oneshot::Sender<Result<Response, BalError>>,    req: Request,struct Message {const MAX_PIPELINED_COMMANDS: usize = 10; */ * before refusing them * or more specifically, how many pipelined messages are allowed/* This constant configures backpressure in the system,use crate::LoginProvider;use crate::mailbox::Mailbox;use crate::login::Credentials;use crate::command;use tokio::sync::{mpsc, oneshot};use tokio::sync::mpsc::error::TrySendError;use imap_codec::types::command::CommandBody;use futures::future::FutureExt;use futures::future::BoxFuture;use boitalettres::proto::{Request, Response};use boitalettres::errors::Error as BalError;use std::sync::Arc;ade

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}    }        tracing::debug!("exiting runner");        //@FIXME add more info about the runner        }            });                tracing::warn!("failed to send imap response to manager: {:#?}", e)            msg.tx.send(wrapped_res).unwrap_or_else(|e| {            // and then abort the session as it is corrupted.            //@FIXME I think we should quit this thread on error and having our manager watch it,            });                }                    Response::bad("Internal error")                    tracing::warn!(error=%ae, "internal.error");                Err(ae) => {                Ok(be) => Err(be),            let wrapped_res = res.or_else(|e| match e.downcast::<BalError>() {            };                    .map_err(anyhow::Error::new),                _ => Response::bad("Error in IMAP command received by server.")                } => cmd.fetch(sequence_set, attributes, uid).await,                    uid,                    attributes,                    sequence_set,                CommandBody::Fetch {                CommandBody::Select { mailbox } => cmd.select(mailbox).await,                } => cmd.list(reference, mailbox_wildcard).await,                    mailbox_wildcard,                    reference,ad�����G8�����xc?>�
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�xT5��                CommandBody::List {                } => cmd.lsub(reference, mailbox_wildcard).await,                    mailbox_wildcard,                    reference,                CommandBody::Lsub {                CommandBody::Login { username, password } => cmd.login(username, password).await,                CommandBody::Capability => cmd.capability().await,            let res = match msg.req.body {            let mut cmd = command::Command::new(msg.req.tag, self);        while let Some(msg) = self.rx.recv().await {        tracing::debug!("starting runner");        //@FIXME add more info about the runner    async fn start(&mut self) {    // fn name(&self) -> String { }    // to ease debug    //@FIXME add a function that compute the runner's name from its local info    }        }            user: None,            selected: None,            rx,            login_provider,        Self {    fn new(login_provider: Arc<dyn LoginProvider + Send + Sync>, rx: mpsc::Receiver<Message>) -> Self {impl Instance {}    pub user: Option<User>,    pub selected: Option<Mailbox>,