tokio_fs/file/
open.rs

1use super::File;
2
3use futures::{Future, Poll};
4
5use std::fs::OpenOptions as StdOpenOptions;
6use std::io;
7use std::path::Path;
8
9/// Future returned by `File::open` and resolves to a `File` instance.
10#[derive(Debug)]
11pub struct OpenFuture<P> {
12    options: StdOpenOptions,
13    path: P,
14}
15
16impl<P> OpenFuture<P>
17where
18    P: AsRef<Path> + Send + 'static,
19{
20    pub(crate) fn new(options: StdOpenOptions, path: P) -> Self {
21        OpenFuture { options, path }
22    }
23}
24
25impl<P> Future for OpenFuture<P>
26where
27    P: AsRef<Path> + Send + 'static,
28{
29    type Item = File;
30    type Error = io::Error;
31
32    fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
33        let std = try_ready!(::blocking_io(|| self.options.open(&self.path)));
34
35        let file = File::from_std(std);
36        Ok(file.into())
37    }
38}
tokio_fs/file/open.rs

tokio_fs/file/
open.rs
