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fs: use async fn instead of custom futures (#1381)

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Also update all the doc examples.
This commit is contained in:
Carl Lerche
2019-08-04 11:24:30 -07:00
committed by GitHub
parent 337646b97f
commit 6cbe3d4f82
36 changed files with 691 additions and 1668 deletions
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tokio-fs/tests/file.rs
+13 -15
View File
@@ -1,7 +1,6 @@
#![deny(warnings, rust_2018_idioms)]
#![feature(async_await)]
use futures_util::future::poll_fn;
use rand::{distributions, thread_rng, Rng};
use std::fs;
use std::io::SeekFrom;
@@ -31,11 +30,11 @@ fn read_write() {
let contents_2 = contents.clone();
pool::run(async move {
let file = File::create(file_path).await?;
let (mut file, metadata) = file.metadata().await?;
let mut file = File::create(file_path).await?;
let metadata = file.metadata().await?;
assert!(metadata.is_file());
file.write(&contents).await?;
poll_fn(move |_cx| file.poll_sync_all()).await?;
file.sync_all().await?;
Ok(())
});
@@ -109,19 +108,18 @@ fn seek() {
let file_path = dir.path().join("seek.txt");
pool::run(async move {
let mut file = OpenOptions::new()
.create(true)
.read(true)
.write(true)
.open(file_path)
.await
.unwrap();
let mut options = OpenOptions::new();
options.create(true).read(true).write(true);
let mut file = options.open(file_path).await.unwrap();
assert!(file.write(b"Hello, world!").await.is_ok());
let mut file = file.seek(SeekFrom::End(-6)).await.unwrap().0;
file.seek(SeekFrom::End(-6)).await.unwrap();
let mut buf = vec![0; 5];
assert!(file.read(buf.as_mut()).await.is_ok());
assert_eq!(buf, b"world");
let mut file = file.seek(SeekFrom::Start(0)).await.unwrap().0;
file.seek(SeekFrom::Start(0)).await.unwrap();
let mut buf = vec![0; 5];
assert!(file.read(buf.as_mut()).await.is_ok());
assert_eq!(buf, b"Hello");
@@ -141,8 +139,8 @@ fn clone() {
let file_path_2 = file_path.clone();
pool::run(async move {
let file = File::create(file_path.clone()).await.unwrap();
let (mut file, mut clone) = file.try_clone().await.unwrap();
let mut file = File::create(file_path.clone()).await.unwrap();
let mut clone = file.try_clone().await.unwrap();
assert!(AsyncWriteExt::write(&mut file, b"clone ").await.is_ok());
assert!(AsyncWriteExt::write(&mut clone, b"successful")
.await