hard_link.rs.html -- source

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open

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parking_lot_core

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tokio

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threadpool

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clock.rs fs.rs io.rs lib.rs net.rs prelude.rs sync.rs timer.rs

tokio_codec

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tokio_core

tokio_current_thread

lib.rs scheduler.rs

tokio_executor

enter.rs error.rs executor.rs global.rs lib.rs park.rs typed.rs

tokio_fs

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tokio_rustls

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client.rs lib.rs server.rs

tokio_sync

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task

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lib.rs lock.rs loom.rs oneshot.rs semaphore.rs watch.rs

tokio_tcp

incoming.rs lib.rs listener.rs stream.rs

tokio_threadpool

tokio_timer

tokio_udp

frame.rs lib.rs recv_dgram.rs send_dgram.rs socket.rs

tokio_uds

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unicode_width

lib.rs tables.rs

unicode_xid

lib.rs tables.rs

untrusted

vec_map

void

webpki

calendar.rs cert.rs der.rs error.rs name.rs signed_data.rs time.rs trust_anchor_util.rs verify_cert.rs webpki.rs

windows_service

x11

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xcb

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xkbcommon

xkb

x11

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yasna

deserializer

models

der.rs mod.rs oid.rs time.rs

reader

error.rs mod.rs

serializer

tags

writer

use std::fs;
use std::io;
use std::path::Path;

use futures::{Future, Poll};

/// Creates a new hard link on the filesystem.
///
/// The `dst` path will be a link pointing to the `src` path. Note that systems
/// often require these two paths to both be located on the same filesystem.
///
/// This is an async version of [`std::fs::hard_link`][std]
///
/// [std]: https://doc.rust-lang.org/std/fs/fn.hard_link.html
pub fn hard_link<P: AsRef<Path>, Q: AsRef<Path>>(src: P, dst: Q) -> HardLinkFuture<P, Q> {
    HardLinkFuture::new(src, dst)
}

/// Future returned by `hard_link`.
#[derive(Debug)]
pub struct HardLinkFuture<P, Q>
where
    P: AsRef<Path>,
    Q: AsRef<Path>,
{
    src: P,
    dst: Q,
}

impl<P, Q> HardLinkFuture<P, Q>
where
    P: AsRef<Path>,
    Q: AsRef<Path>,
{
    fn new(src: P, dst: Q) -> HardLinkFuture<P, Q> {
        HardLinkFuture { src: src, dst: dst }
    }
}

impl<P, Q> Future for HardLinkFuture<P, Q>
where
    P: AsRef<Path>,
    Q: AsRef<Path>,
{
    type Item = ();
    type Error = io::Error;

    fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
        ::blocking_io(|| fs::hard_link(&self.src, &self.dst))
    }
}