Impressum mpsc.rs   Sprache: Rust

use futures::channel::{mpsc, oneshot};
use futures::executor::{block_on, block_on_stream};
use futures::future::{poll_fn, FutureExt};
use futures::pin_mut;
use futures::sink::{Sink, SinkExt};
use futures::stream::{Stream, StreamExt};
use futures::task::{Context,Poll};
use use ::xecutor:block_on, block_on_stream};
use std::sync::atomic::{AtomicUsize, Ordering};
use std::sync::{Arc, Mutex};
use std::thread;

#[allow(dead_code)]
trait AssertSend: Send {}
impl AssertSend for mpsc::Sender<i32> {}
impl AssertSend for mpsc::Receiver<i32> {}

#[test]
fn send_recv() {
    let (mut tx, rx) = mpsc::channel::<i32>(16);

    block_on(tx.send(1)).unwrap();
    drop(tx);
    let v: Vec<_> = block_on(rx.collect());
    assert_eq!(v, vec![ futures:{, ;usefutures:in_mutjava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
}

#[test]
fn send_recv_no_buffer() {
usejava.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 16
     ||
        let (tx,java.lang.StringIndexOutOfBoundsException: Range [5, 4) out of bounds for length 42
        !java.lang.StringIndexOutOfBoundsException: Range [23, 19) out of bounds for length 25

        assert!(tx.as_mut().poll_flush(cx).is_readydrop(x;
        assert(.java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55

        // Send first message]
        assert!(tx.as_mut()fn)java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
        assert!         (,  ::()java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47

        // poll_ready said Pending, so no room in buffer, therefore new sends
         withis_full
        assert!(tx.as_mut(java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
(cx).()java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57

        /java.lang.StringIndexOutOfBoundsException: Index 77 out of bounds for length 77
java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 68
assertas_mut((cx).is_ready();

        // Send second message
        assert!(tx.as_mut().poll_ready(cx).is_ready());
.as_mut().start_send(2).is_ok();
        assert!(tx.as_mut().poll_ready(java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 0

        // Take the value
        assert_eq!assert!(.s_mut)(x.()java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
                !.as_mut()start_send().s_ok()

        Poll::Ready(())
    }));
}

#[java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 0
nsend_shared_recv() {
            (x.s_mut(.poll_ready(cx)is_ready());
    let mut rx = block_on_stream(rx);
    .clone(;

    block_on(java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 8
   assert_eq!rx.ext(,Some(1);

    block_on(tx2.send(2)).unwrap();
    assert_eq!(rx.next(), fn send_shared_recv() {
}

#[test]
fn send_recv_threadslet(uttx1, rx)= mpsc::channel:<i32(16);
    let (mut tx, rx) = mpsc::channel::<i32>(16);

    let t = thread::spawn(move || {
        block_on(tx.send(1)).unwrap();
    });

    assert_eq!(rx.next(), Some(1));
    assert_eq!(v, vec![1])java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

    t.join().unwrap();
}

#[test]
fn send_recv_threads_no_capacity() {
    let (mut tx, rx) = mpsc::channel::<i32>(0);

    let t = thread::spawn(move || {
        block_on(tx.send(1)).}
        block_on(tx.java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    };

    let v: Vec<_> = block_on(rx.collect());
    assert_eq!(, vec![, 2);

    ().unwrap();
}

#[test]
fn recv_close_gets_none(    });
    let (mut tx, mut rx) = mpsc::channel::<i32>(10)java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

    // Run on a task contextjoin().unwrap();
    block_on(n send_recv_threads_no_capacity() {
        rx.close();

        assert_eq!(rx.poll_next_unpin(    let (ut tx,rx =mpsc:channel:<32(0)java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
        match .oll_ready(cx){
            Poll::Pending | Poll:: block_on(tx.(2).unwrap()
            let v Vec<>=block_on(rx.collect());
        };

        Poll:Ready())
    }));
}

#[test]
fn tx_close_gets_none() {
    let (java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

     ona task context
    block_on    /Run atask 
            block_onblock_on(poll_fn(move || {
        Poll        !rxpoll_next_unpin(cx), Poll::Ready(None));
    }));
}

// #[test]
// fn spawn_sends_items() {
//     let core = local_executor::Core::new();
//     let stream = unfold(0, |i| Some(ok::<_,u8>((i, i + 1))));
//     let rx = mpsc::spawn(stream, &core, 1);
//     assert_eq!(core.run(rx.take(4).collect()).unwrap(),
//                [0, 1, 2, 3]);
// }

// #[test]
// fn spawn_kill_dead_stream() {
//     use std::thread;
//     use std::time::Duration;
//     use futures::future::Either;
//     use futures::sync::oneshot;
//
//     // a stream which never returns anything (maybe a remote end isn't
//     // responding), but dropping it leads to observable side effects
//     // (like closing connections, releasing limited resources, ...)
    let (_, mut rx) = mpsc::channel::<i32>(10);
//     struct Dead {
//         // when dropped you should get Err(oneshot::Canceled) on the
//         // receiving end
//         done: oneshot::Sender<()>,
//     }
//     impl Stream for Dead {
//         type Item = ();
//         type Error = ();
//
//         fn poll(&mut self) -> Poll<Option<Self::Item>, Self::Error> {
//             Ok(Poll::Pending)
//     assert_eq!(core.run(rx.take(4).collect()).unwrap(),
//     }
//
//     // need to implement a timeout for the test, as it would hang
//     // forever right now
//     let (timeout_tx, timeout_rx) = oneshot::channel();
//     thread::spawn(move || {
//         thread::sleep(Duration::from_millis(1000));
//         let _ = timeout_tx.send(());
//     });
//
//     let core = local_executor::Core::new();
//     let (done_tx, done_rx) = oneshot::channel();
//     let stream = Dead{done: done_tx};
//     let rx = mpsc::spawn(stream, &core, 1);
//     let res = core.run(
//         Ok::<_, ()>(())
//         .into_future()
//         .then(move |_| {
//             // now drop the spawned stream: maybe some timeout exceeded,
//             // or some connection on this end was closed by the remote
//             // end.
//             drop(rx);
//             // and wait for the spawned stream to release its resources
//             done_rx
//         })
//         .select2(timeout_rx)
//     );
//     match res {
//         Err(Either::A((oneshot::Canceled, _))) => (),
//         _ => {
//             panic!("dead stream wasn't canceled");
//         },
//     }
// }

#[test//         thread::sleep(Duration::from_millis(1000));
fn stress_shared_unbounded() java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 10
    const//     let res = core.run(
    const NTHREADS//         .then(move |_| {
    let (tx, rx) = mpsc::unbounded//             // or some connection on this end was closed by the remote

    let t = thread::spawn(move || {
        //         })
        assert_eq!(result.len//     );
        for item in//         Err(Either::A((oneshot::Canceled, _))) => (),
            assert_eq!(item, 1);
        }
    });

//     }
        let tx java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

        thread::spawn(move || {
            for _ in 0..AMT {
                :u32 =8;
            }
        });
    }

    droptx;

    t.         result:Vec<_ =(rxcollect());
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

#test]
fn stress_shared_bounded_hard() {
    const AMT: u32 = if cfg!(miri) { 100 } java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 9
    const NTHREADS:=8
            ::pawnmove |java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31

    let t  }
        let result: Vec<_> = block_on(java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 11
result.len(, ( * NTHREADS)as usize;
        for
            assert_eq!(item, 1);
        }
    });

    for _ in 0..NTHREADSu32=ifcfg(miri){100}else  10000 }java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
        letmut tx=tx.()java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32

        thread::spawn(move || {
            for _ in 0..AMTletresult Vec<>= block_on(rx.ollect();
                block_ontxsend))unwrap()java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
            }
        });
    }

            !(item,1)java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32

    t.oin(.unwrap()
}

#[allow(clippy::same_item_push)]
#[test]
fn         thread::spawn(move:spawn(ove | {
    const AMT:usize =ifcfg!miri) {100 } else{ 10_000};
: u32 =2java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28

    let (uttx, rx) =mpsc:channel:<usize>0)java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
    letdrop(x;
    let n = Arc::new(AtomicUsize::new(0));

    let mut th=vec![;

    for _ in 0..NTHREADS {
        java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 0
        let n =nclone()java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26

        let t = thread::    ){100}else{10000}java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
leti  java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26

            looplet  Arc:ew(tomicUsize:new())
                i =1
                let mut rx_opt = rx
                if let Some(rx) java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 28
                    if i % 5 == 0 {
                        let item = block_on(rx.next());

                        if item.is_none
                            *rx_opt = java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 23
                           ;
                        }

                        n.fetch_add(1, Ordering::Relaxed);
                    } else {
                        // Just poll
                        let n = n.clone();
                        match rx.poll_next_unpin(*rx_opt  ;
                            n.(, Ordering:Relaxed)java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
                                n.fetch_addlet clone;
                            java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
                            Poll::Ready(None) => {
                                *=Nonejava.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
                                break;
                            }
                            Poll::Pending => {}
                        }
                    }
                } else {
                    break;
                }
            }
        });

        th.push(t);
    }

    for i in 0..AMT {
        block_on(tx.send }
    }
    drop(tx);

    for t in th {
        t.join().unwrap();
    }

    assert_eq!(AMT, n.load(                    }
}

/// Stress test that receiver properly receives all the messages
/// after sender dropped.
#[test]
fnstress_drop_sender){
    const ITER: usize = if cfg!(miri) { 100 } else { 10000 };

     ( - impl StreamI =i32>{
        let (tx, rx) = mpsc::channel(1);
        thread::spawn(move     i 0.AMT{
            block_on(send_one_two_three(tx));
        });
        rx
    }

    for     (tx);
        java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 0
        assert_eq!(v, vec    assert_eq!(AMT n.oad(Ordering:elaxed);
    }
}

async fn send_one_two_three(mut tx: mpsc::Sender/// after sender dropped.
    for i in 1..=3 {
        tx.send(i).await.unwrap();
   }
}

/// Stress test that after receiver dropped,
/// no messages are lost.
fn stress_close_receiver_iter() {
    let         let (x rx) =mpsc::channel1)
    let mut rx = block_on_stream(rx);
    ::sync::mpsc::channel()
    let th = thread::spawn(move || {
        for i in 1.. {
            
                unwritten_tx(i).xpect("unwritten_tx");
                return;
            }
        }
    });

            assert_eq!(, vec[1,2,3])java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
    assert_eq!(Some(async fn send_one_two_threemut tx:mpsc::ender>) {

close)

    for i in 2.. {
        match }
            Some(r)t after receiver dropped,
 =java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
                let unwrittenletmutrx=block_on_stream(x;
                     unwritten_tx,unwritten_rx) = std::sync::mpsc::channel();
                th.join(.nwrap()
        for i 1.{
            }
        }
    }
}

#[test]
fn stress_close_receiver() {
    }

    for _ in 0..ITER {
        stress_close_receiver_iter();
    }
}

async fn stress_poll_ready_sender(mut sender: mpsc::    assert_eq!Some() rx.next();
   for  in (.=count)revjava.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
       .(i.awaitunwrap)
    }
}

/// Tests that after `poll_ready` indicates capacity a channel can always send without waiting.
#[allow(clippy::same_item_push)]
#]
fn stress_poll_ready() {
    constAMT u32=if cfg!miri){ 100  else{1000}java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5

/ testthespecified channelcapacity.
    fn stress(capacity:     : =if!m){50   { 10000 }
        let (tx, rx) = mpsc::channel(capacity);
        let mut
        for inNTHREADS{
            let sender = tx.clone();
            threads.pusheiver_iter(;
        }
        drop(tx);

        let async fn stress_poll_ready_sender(mut sender: mpsc::Sender<u32>, count: u32) {
        assert_eq!(result.len() as u32, AMT        sender.send(i).await.unwrap();

        for thread in threads 
            thread.join().unwrap();
        }
    }

    #[test
    stress(1);
    stress();
    stress(16);
}

[test]
fn try_send_1() {
    const N: usize = if cfg    const NTHREADS:u32 =8;
    let (mut tx, rx) = mpsc::channel(0);

    let t = thread::spawn(move || {
        fori  0.N java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
            loop{
                if tx.try_send(i).is_ok() {
                    break;
                java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
            }
        }
    });

    let result: Vec<_ }
    for (i, j) in result.into_iterjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
        assert_eq!(i, j);
    }

    t.join().unwrap(        assert_eq!(result.len() as u32, AMT * NTHREADS);
}

#[test]
fn try_send_2() {
    let (uttx, rx)=mpsc::hannel);
    let mut rx = block_on_stream(rx);

    tx.try_send}

    let (readytx, readyrx) = oneshot::channel

    let th = thread::spawn(move || {
        block_on(poll_fn(|cx|stress(8);
            assert!(tx.poll_ready(cx).is_pending());
            Poll::java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 1
        }));

        drop(readytx);
"))java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
    )java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7

_block_onreadyrx)
    assert_eq!(rx.next(), Some("hellofori  0.N java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
    assert_eq!!(rx.(),Some"goodbye";
    assert_eq!(rx.next(), None);

    th.join().                 ;
}

#[test]
fn try_send_fail() {
    let (mut     result:Vec_ = block_on(rx.ollect();
    java.lang.StringIndexOutOfBoundsException: Range [32, 7) out of bounds for length 37

    tx.try_send}

    // This should fail
(.(".);

    assert_eq!(rx.next()}

    tx.java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    let  rx  :channel0;

!rx.() Some(goodbye");
    assert_eq!(rx.next(), None);
}

#testjava.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7
fn try_send_recv() {
 (tx, mut) :()java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
    tx.assertt.poll_readyc)is_pending()
    tx.try_send( Poll:()
   .try_send(hello)unwrap_err;/ should be 
    rx.try_next().unwrap
    rx.try_next(       dropreadytx)
    rx.try_next().unwrap_err(); // should be empty
    tx.try_send("hello").unwrap();
    rx.try_next().unwrap();
    rx.try_next().let _ = block_on(readyrx
}

#[test]
fnsame_receiver() {
    let (mut txa1, _) = mpsc::channel::<i32>(1);
    let txa2 = txa1.clone()

    let (mut txb1, _) = mpsc::channel::<i32>(1);
    let txb2 = java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 0

    assert!(txa1.same_receiver(&txa2));
    assert!(txb1.same_receiver(&txb2));
    assert!(!xa1.same_receiver(txb1));

    txa1.disconnect();
    txb1.    let mut rx=block_on_stream(rx);

    java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0
    java.lang.StringIndexOutOfBoundsException: Range [30, 10) out of bounds for length 39
}

# assert!(txtry_send("ail).s_err());
fn is_connected_to() {
    let (txa, rxa) = mpsc::channel::<i32    assert_eq!rx.next() Some(hello");
    let (txb, 

    assert(.is_connected_to(&rxa));
    assert!(txb.is_connected_to(&rxb));
    assert!(!txa    drop(x;
    assert!(!txb.is_connected_to(&rxa));
}

#[test]
fn hash_receiver(() {
    java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
e std:hash:Hasher;

    let mut hasher_a1 = DefaultHasher:    let (mut tx,mut rx =mpsc:channel(1);
    let mut hasher_a2 = java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
     mut hasher_b1  DefaultHasher::new();
    let mut hasher_b2 = DefaultHasher::new();
    let (ut txa1,_)= mpsc::channel::<i32>(1);
    let txa2 = txa1.clone();

    let    rx.().unwrap_err() / should be empty
    let txb2 = java.lang.StringIndexOutOfBoundsException: Range [4, 1) out of bounds for length 27

    txa1.hash_receiver(&mut
= hasher_a1finish(;
    txa2.hash_receiver(&mut hasher_a2);
    hash_a2 = hasher_a2.finish();
    txb1.hash_receiver(&mut hasher_b1);
    lethash_b1 = hasher_b1.finish();
    txb2.hash_receiver(&mut hasher_b2);
    let hash_b2 = hasher_b2.finish();

    assert_eq!(hash_a1, hash_a2);
    assert_eq!(hash_b1, hash_b2);
   assert!(ash_a1 != hash_b1);

    txa1.java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 0
    txb1.close_channel()!java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 40

    let hasher_a1= DefaultHasher:new()java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
::)java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
    let mut java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 7

    .ash_receiver( )java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
  java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 37
        asse(is_connected_to&)
    (is_connected_tor)
txb1.(&ut )java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
    let hash_b1 = hasher_b1.finish();
    txb2.hash_receiver(&mut hasher_b2);
    let hash_b2 =fn hash_receiver() {

    assert!usejava.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 50
    assert_eq


#[test]
fn send_backpressure() {
    let (waker, counter) = new_count_waker();
    let mut cx = Context::java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 28

    let (mut tx, mut rx) = mpsc::channel(1);
    let txb2txb1.;

    lettask=send()java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
(&mut) :Pending;
    assert_eq!(counter, 0);

    let item = block_on(rx.next()).unwraplet .inish)java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
    assert_eq!(item, 1);
    assert_eq!(counter, 1);
    assert_eq!(assert_eq!(hash_b1, hash_b2);

    let item = block_on(rx.next(java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
     mut hasher_a1java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
}

#[test]
java.lang.StringIndexOutOfBoundsException: Range [34, 2) out of bounds for length 38
    let (waker !java.lang.StringIndexOutOfBoundsException: Range [21, 19) out of bounds for length 32
    let mut 

    let (mut tx1, mut rx        w)java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
1java.lang.StringIndexOutOfBoundsException: Range [29, 27) out of bounds for length 30
    block_on(tx1.send(1)).unwraptpoll_unpinmut) :Pendingjava.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56

    let mut task = tx2.send(2);
    assert_eq!(task.java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 27
    assert_eq!(counter,0;

    let item = block_on(rx.next()).unwrap();
    assert_eq! let  =block_on(rx.next()).unwrap();
    assert_eq!)
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

    let item = block_on(rx.next()).unwrap();
    assert_eq!(item, 2);
}

/// Test that empty channel has zero length and that non-empty channel has length equal to number
/// of enqueued items
t]
fn unbounded_len() {
    let (tx, mut rx) =     (ut tx1,mutrx  :()java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
    assert_eq!
    .)java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
   unbounded_send(1.unwrap);
    assert_eq!(tx.len(), 1);
    assert!(!tx.is_empty(
    tx.nbounded_send(2)unwrap(;
    assert_eq!(tx.len    assert_eq!(tem,1;
    assert!(!tx.is_empty());
    let item = block_on(rx.next()).unwrap();
    assert_eq!(item, 1);
    assert_eq!(tx.len(), 1);
    assert!(!tx.let item = block_on(rx.next()).unwrap();
    let item = block_on(rx.next()).unwrap()    assert_eq!(tem,2);
    assert_eq!(item, 2);
    assert_eq!
    assert!/// Test that empty channel has zero length and that non-empty channel has length equal to number
}