progress_test's People
progress_test's Issues
tokio の poll_write などが止まる
現象
Progressにデータを書き込みしている最中に to_size
を呼ぶと tokio::io::copy
が止まる。
struct ProgressInner<T> {
size: u64,
buf: T,
}
pub struct Progress<T> {
inner: Arc<Mutex<ProgressInner<T>>>,
}
impl<T> Progress<T> {
pub fn new(buf: T) -> Self {
let inner = Arc::new(Mutex::new(ProgressInner {
size: 0,
buf,
}));
Progress { inner }
}
pub async fn to_size(&self) -> u64 {
let pg = self.inner.lock().await;
pg.size
}
}
今まで調査したこと
tokio::sync::RwLock
同様の現象が再現するtokio::io::copy
ではなく、代わりに read, write_all を使っても再現する- docker上でも再現する
- linux, macOS 上でも再現する
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