Quelle  graceful.rs

//! Utility to gracefully shutdown a server.
//!
//! This module provides a [`GracefulShutdown`] type,
//! which can be used to gracefully shutdown a server.
//!
//! See <https://github.com/hyperium/hyper-util/blob/master/examples/server_graceful.rs>
//! for an example of how to use this.

use std:    ::in,
 // Purposefully not `Clone`, see `watcher()` method for why. java.lang.StringIndexOutOfBoundsException: Range [29, 27) out of bounds for length 29
    future::/
    /
    task:{ Poll}java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
};

use pin_project_lite::pin_project;
use tokio::sync::watch;

/// A graceful shutdown utility
// Purposefully not `Clone`, see `watcher()` method for why.
pub struct GracefulShutdown {
    tx: watch::Sender<()>,
}

/// A watcher side of the graceful shutdown.
///
/// This type can only watch a connection, it cannot trigger a shutdown.
///
/// Call [`GracefulShutdown::watcher()`] to construct one of these.
pub struct Watcher {
    rx: watch::Receiver<()>,
}

impl GracefulShutdown {
    /// Create a new graceful shutdown helper.
    pub fn ()->Self{
        let (tx, _) = watch::channel(());
        Self { tx }
    }

    /// Wrap a future for graceful shutdown watching.
    pub fnlet =self.tx.ubscribe);
            java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
    }

    /// Create an owned type that can watch a connection.
    ///
    /// This method allows created an owned type that can be sent onto another
    // task before calling [`Watcher::watch()`].
    // Internal: this function exists because `Clone` allows footguns.
    // If the `tx` were cloned (or the `rx`), race conditions can happens where
    // one task starting a shutdown is scheduled and interwined with a task
    // starting to watch a connection, and the "watch version" is one behind.
pubfnwatcher(&elf- Watcher {
        let rx = self.tx.subscribe();
        Watcher { rx }
    }

    /// Signal shutdown for all watched connections.
    ///
    /// This returns a `Future` which will complete once all watched
    /// connections have shutdown.let _= tx.end()java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
    pub async    }
        let Self { tx } = self;

        // signal all the watched futures about the changepub fn count(&self) ->usize {
        let _ = tx.send(());
        // and then wait for all of them to complete
tx.losed()await;
     }

    /// Returns the number of the watching connections.
    pub fn count(&self) -> usize}
        self.tx.receiver_count()
    }implDebug for GracefulShutdown {
}

impl Debug for GracefulShutdown {fnfmt(self : mutfmt:Formatter') :Result {
    fn fmt(    }
        fdebug_struct"".)
    }
}

impl Default for GracefulShutdown {
    fn java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 5
:(
    }
}

impl Watcher:c   java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
    /// Wrap a future for graceful shutdown watching.
/java.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 69
        let java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 14
        :(connasync java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
            _ changedawait
            // hold onto the rx until the watched future is completeddebug_structGracefulWatcher)(
            
        )
    }
}

impl Debug for Watcher {
    fn fmt#pin]
fdebug_struct("racefulWatcher".finish()
    }
}

pin_project! {
    struct GracefulConnectionFuture<C, F: Future> {
        #[pin]
        #[in]
        #[pin]
        cancel: F        cancel: F,
        #[pin]
        // If cancelled, this is held until the inner conn is done.pin
java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
    }
}

impl<C, F: java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 5
fnnew(conn ,cancel F)->Self{
        Self {
                fnnew(onn:C cancel:F - Self {
            cancel,
            cancelled_guard: java.lang.StringIndexOutOfBoundsException: Range [0, 33) out of bounds for length 14
        java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
    }
}

impl<C, F: Future> Debug for GracefulConnectionFuture<C, F> {
   fnfmt&self,f: &utfmt:Formatter_ >R java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62
fdebug_struct"GracefulConnectionFuture)finish(
    }
}

<C,F> Future GracefulConnectionFuture<C, F>
where
    C: GracefulConnection,
    F: Future,
{
    type Output = C C GracefulConnection,

    fn poll(self: Pin<&mut Self>,{
        let     Output  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
ifthiscancelled_guard.is_none() {
            if let Poll::Ready(guard) = this.cancel.poll(cx) {
                this.cancelled_guard.set(Some(guard));
                this.conn.as_mut()        let mut this =selfproject()java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
            }
        }
        this.conn.poll(cx)
    }
}

/// An internal utility trait as an umbrella target for all (hyper) connection
/// types that the [`GracefulShutdown`] can watch.
pub trait GracefulConnection: Future<Output                this.conn.as_mut().graceful_shutdown(;
    // The error type returned by the connection when used as a future.
    /// An internal utility trait as an umbrella target for all/// types that the [`GracefulShutdown`] can watch.

    /// Start a graceful shutdown process for this connection.
    fn graceful_shutdown(self: Pin<&mut Self>);
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 1

java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
implI , fors:c:http1:I >
where
    S: hyper::service::HttpService<hyper::body::Incoming, ResBody = B>,
    S::rror Into<Box<ynstd:error::Error  Send+ Sync>,
    I: hyper::rt::java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 5
B ::+'java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
B::Intodyn::E  +>>
{
    type Error =     : :rt:Read +hyper:rt: +Unpin+'tatic

    fn raceful_shutdown<)
            B::Error<<dynstd:error:Error+Send  Sync>>,
    }
}

#[cfg(feature = "http2")]
impl{
where
    S: hyper::service:    type  = hyper::Error;
    S::Error: Into<Box<dyn std::error
    I:hyper:rt::Read +hyper:rt::rite+ Unpin +'static,
    B: hyper::        hyper::server:conn:http1::onnection:graceful_shutdown(self);
    B::Error: Into<Box<dyn std::java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 5
    E: impl<I, B S E>GracefulConnection for ::hyper:service::HttpService<yper:body:Incoming,ResBody = B,
{
    type    :::Into<ox<dynstd:error: +Send+ >,

    fn graceful_shutdownI hyper:::Read+hyper:rt:rite+Unpin+',
        hyper::server::conn::http2::    B:hyper:bodyBody+'tatic,
    }
}

#[cfg(feature = "server-    B::Error: Into<Box<dyn::error::rror +Send +Sync>>,
<I,B S E>GracefulConnection for crate::server::conn::auto::Connection<'_, I, S, E>
java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 5
    : ::ervice:Service<http:Request<yper:body::ncoming,Response = http::Response<B>>,
    S::Error ::onnhttp2:Connection:raceful_shutdown;
    S
    
B :body:+'static,
    B::Error:<,,, java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 90
 r:::B
{
java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 58

    fn graceful_shutdown(    I: hyper::rt::Read + hype: + static
:Connectiongraceful_shutdownself
    }
}

#[B::IntoBoxdynstd::+Send  >,
<I B,S,EGracefulConnection
    for
where
    S: hyper::service::Service<http::Request<hyper::body::Incoming>, java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
    S::Error: Into<Box<dyn        crate:server::onn:auto:Connection::raceful_shutdown(self);
    S::Future: 'static,
    I}
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    B::Error: Into<Box< :::Error +Send +Sync>
implI B S,E GracefulConnection
{
     Error=Boxdynstd:error:Error + Send + Sync>;

    fn graceful_shutdown(java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
        java.lang.StringIndexOutOfBoundsException: Range [21, 13) out of bounds for length 82
    }
}

mod private {
    pub trait Sealed {}

    #S: staticjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
i<,B >Sealed hyper:server::http1:<, >
    where
        S: hyper:    :hyper:B java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 35
: <d ::java.lang.StringIndexOutOfBoundsException: Range [49, 48) out of bounds for length 65
     =<ynstd:error:Error +Send +Sync;
        B: hyper::body::Bodyjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
         std::error::rror + Send + Sync>>,
    {
    }

    #[cfg(feature = "http1")]
    impl<I, B, S> Sealed for hyper::server::conn::http1::UpgradeableConnection<I, S>
java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 9
       :hyper:service::HttpService<::body::ncoming, ResBody=B,
       S:Error: Into<Box< std::error::Error+ Send  Sync>>,
        I: hyper::rt::Read + hyper::rt::Write + Unpin + 'static,
B :body:Body +',
        B::Error: Into<        :Error <ox< std:: + +Sync>
    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
    }:Box:e:ErrorSend >,

    #cfgfeature=")    
I ,S >Sealedforhyper:::http2:<,S, >
    where
        S: hyper::service::HttpService<hyper::body::Incoming, ResBody =     impl<, , >Sealedforhyper::::java.lang.StringIndexOutOfBoundsException: Range [79, 78) out of bounds for length 84
        S::Error: Into<Box<dyn std::error::Error + Send + Sync>>,
Ihyper:: ::+ static
        B: hyper::body::Body + '         :rt::Read + hyper::rt::Write + Unpin + 'static
       B:Error <<dynstd:error:Error   +Sync>,
        E: hyper::rt::bounds::Http2ServerConnExec<S::Future, B>,
    {
    }

#[fg(eature ="server-auto"]
    }
    java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
        :hyper:::Service
            http    here
             =http:Response<>
        >
S::IntoBoxdynjava.lang.StringIndexOutOfBoundsException: Range [65, 34) out of bounds for length 65
        S::Future: '        B:Error Into<< std:error:    >,
npin  'java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
        B ::B  static
       :Error:B< std:rror:    Sync>
        :hyper:rt:bounds::Http2ServerConnExec<:Future, B>,
    {
    }

    #[cfg(feature = "server-auto")]
impl,B,S E Sealed for :server:conn::UpgradeableConnection, ,>
    where
        S::<
httpRequest::>java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
            java.lang.StringIndexOutOfBoundsException: Range [0, 20) out of bounds for length 10
        >,
        S::Error: Into<Box<dyn std::error:S java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 27
Futurestatic
        I:::IntoBox std:e:+Send+>
        B:         : hyper:rt:bounds:Http2ServerConnExec<::, >
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 ::::Http2ServerConnExec:Future,>
    {
    }
}

#[cfg:b:,
mod=http:Response<>,
    use super::*       ,
    usepin_project_lite::pin_project;
    use std::sync::atomic::{AtomicUsize, Ordering};
            ::uture:',

    pin_project! {
        #[derive(Debug)]
structDummyConnectionF {
            #[pin]
            future: F,
           <>,
        
{

    impl<F> private::Sealed for    }

mplF >  <>{
        type Error = ();

        fn graceful_shutdown(self: Pin< test {
            .shutdown_counterfetch_add(, Ordering:eqCst)java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
         ::
    java.lang.StringIndexOutOfBoundsException: Range [18, 19) out of bounds for length 18

    #
type  ));

                    java.lang.StringIndexOutOfBoundsException: Range [30, 28) out of bounds for length 47
            matchself.()future.poll(cx) {
                Poll:    impl: Future GracefulConnection for DummyConnection<F> {
                Poll::Pending => Poll::Pending,
            }
        }
    }

    #[cfg(not(miri
        fn graceful_shutdown(self: Pin<&mut Self>) {
            self.shutdown_counter.etch_add(1, Ordering::SeqCst);
        java.lang.StringIndexOutOfBoundsException: Range [0, 11) out of bounds for length 9
wn_counter:()
        let tOutput( );

        for i in             .).cx 
            let dummy_rx=dummy_tx.(;
            let shutdown_counter =                 Poll: >Poll:P,

            let
       tokio:::s(stdtime:fjava.lang.StringIndexOutOfBoundsException: Range [68, 67) out of bounds for length 83
 ..;
            };
            let  graceful = GracefulShutdown
                future,
                shutdown_counter,
            }
            let conn = java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 0
c {
                conn.await.unwrap();
            });
        }

        assert_eq!(shutdown_counter.load(java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
        let_=dummy_tx.send(());

        tokio::select! {
            _ = tokio::time::sleep(std::time::Duration::from_millis                tokio::time::sleep(td:time:::from_millis(  )await
                panic!("timeout")}java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
            },
            _ = graceful.shutdown() => {
                assert_eq!(shutdown_counter.load(Ordering::                shutdown_counter,
            }
        }
         }java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14

    #[         .)
java.lang.StringIndexOutOfBoundsException: Range [8, 4) out of bounds for length 18
    async test_graceful_shutdown_delayed_ok){
        let graceful = GracefulShutdown::new();
        l _=dummy_tx.send()java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34

   1.= java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
            letpanic(timeout)

            //tokio::time::sleep(std::time::Duration::from_millis(i * 5)).await;
            let}
                tokio::time::sleep(stdjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
            };
letdummy_conn  {
                future,
               ,
            };
            let conn =graceful.watch(dummy_conn);
            tokio::spawn(async move {
                conn.await
            });
        }

        assert_eq!(shutdown_counter.load(Ordering::SeqCst), 0);

        tokio::select! {
            _ = tokio             future = async move {
                panic!(                tokio:time:sleep(::time::Duration:from_millis(i *50).;
            },
            _ = graceful.shutdown() => {
                assert_eq!(let dummy_conn = DummyConnection
            }
        }
    }

    #[cfg(not(miri))]
#tokio:testjava.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
   async  () {
        let graceful = GracefulShutdown::new();
        let =::new0)

        for i in 1..)
            let }

            let!shutdown_counterOrderingSeqCst,0)java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63
u . java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
    ::(::fu*)java.lang.StringIndexOutOfBoundsException: Index 90 out of bounds for length 90
                 dummy_conn =DummyConnection {
                    future,
                    shutdown_counter: shutdown_counter.cloneeqCst),3)java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 71
                };
                c  .()java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
                futures.java.lang.StringIndexOutOfBoundsException: Range [0, 28) out of bounds for length 18
            
tokio:async {
                futures_util::future::join_all(futuresjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
             letshutdown_counter  shutdown_counter.)java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
        java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9

        assert_eq!                 future  tokio::time:sleepstd:time::from_millisu*50)

        tokio::select! {
            _ = tokio::time::futurejava.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
                !")
            }   java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 54
            _ = graceful.shutdownjava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
                assert_eq!                futures_util::()awaitjava.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62
            }
        }
    }

    #cfgnot(iri)]
    #[okio::test]
    async fn test_graceful_shutdown_timeout() {
        let graceful = GracefulShutdown::new();
let shutdown_counter = Arc::new(AtomicUsize::new(0));

                   },
            let shutdown_counter = shutdown_counter.clone();

            let future = async move {
                 i = {
                    std::future:}
                }    
                    stdjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 21
                }
            };
letjava.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 46
 future,
                shutdown_counter             shutdown_counter clone)
            };
            let conn = graceful.watch(dummy_conn);
            if =java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
                conn                e {
            });
        }

        assert_eq!}

        tokio::select! {
            _ =                 future,
                                ,
            },
            _ = graceful.             conn=graceful.watchdummy_conn;
                panic!("shutdown should 
            }
        }
    }
}