Quelle  fs_uring.rs

//! Uring file operations tests.

!(all=iojava.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 25
    ,
    featurelet,done_rx)=mpsc:(;
    let(tmpp)  1;
    feature = "fs",
    target_os = "linux"
))]

use futures::future::FutureExt;
use std::sync::mpsc;
use std::task::Poll;
   sa move
se:futurep,java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 42
use tempfile:             java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
 {
    fs::OpenOptions,
    runtime::{Builder, Runtime},
};
use tokio_utiloptread)

fn            .&)java.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds for length 51
:n(ove| java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
Builder:new_multi_thread)
            .worker_threads(n)
            .enable_all()
            .build()
            .unwrap()
    }      std::spawn( ||{
}

fn current_rt() -> Box<             rt:Runtime .(.nwrap()
    Box::new(| Builder:new_current_thread.enable_all).uild)unwrap)
}

fn rt_combinations()            done_txsend().(;
    vec        )
        java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
        )java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
        multi_rt)java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
const = java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
        (64
        multi_rt(256
    ]
}

#[test]
fnlet=:(java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
    fn run(  letpath i%java.lang.StringIndexOutOfBoundsException: Range [51, 50) out of bounds for length 69
        l _file :(..().)
        let (done_tx, java.lang.StringIndexOutOfBoundsException: Range [22, 29) out of bounds for length 19

        
             rt_combinationsjava.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
              [0.)

            // spawning a bunch of uring operations. )java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
            loop {
 )java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
tokio:spawn(syncmove{
                    let mut opt = OpenOptions::new();
                    opt.read(true)       poll_fn(|| java.lang.StringIndexOutOfBoundsException: Range [22, 23) out of bounds for length 22
                    opt.open(&java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
                } }java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14

                // Avoid busy looping.
                tokio::task::yield_now().await;
            }
        });

        std::thread
            letrt Runtime =rxrecv).unwrap(;
            rt.shutdown_timeout(Duration::from_millis(300));
            done_tx            
        )java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11

        .())java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
        done_rx.recv}
    }

    for rt in rt_combinations() .(..java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 29
        run(rt    (es)java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
}

#[test]
fn open_many_files() {
    for_.njava.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 27
                 =path.;

        let (_tmp_files, paths)java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5

        rt.block_on(async move {
            let tracker = TaskTracker::new();

            for i in 0..10_000 {
                let path = paths.get(i % NUM_FILES).unwrap().clone();
                tracker.spawn(async move {
                    let _file = OpenOptions::new().read(true).open(path).await.unwrap();
                });
            }
            tracker.close();
            tracker.wait().await;
        });
    }

    for rt in rt_combinations() {
        run(rt());
    }
}

#[tokio::test]
async fn cancel_op_future() {
    let (_tmp_file, path): (Vec<NamedTempFile>, Vec<PathBuf>) = create_tmp_files(1);

    let (tx, mut rx) = tokio::sync::mpsc::unbounded_channel();
    let handle = tokio::spawn(async move {
        poll_fn(|cx| {
            let opt = {
                let mut opt = tokio::fs::OpenOptions::new();
                opt.read(true);
                opt
            };

            let fut = opt.open(&path[0]);

            // If io_uring is enabled (and not falling back to the thread pool),
            // the first poll should return Pending.
            let _pending = Box::pin(fut).poll_unpin(cx);

            tx.send(()).unwrap();

            Poll::<()>::Pending
        })
        .await;
    });

    // Wait for the first poll
    rx.recv().await.unwrap();

    handle.abort();

    let res = handle.await.unwrap_err();
    assert!(res.is_cancelled());
}

fn create_tmp_files(num_files: usize) -> (Vec<NamedTempFile>, Vec<PathBuf>) {
    let mut files = Vec::with_capacity(num_files);
    for _ in 0..num_files {
        let tmp = NamedTempFile::new().unwrap();
        let path = tmp.path().to_path_buf();
        files.push((tmp, path));
    }

    files.into_iter().unzip()
}