Arpad Müller 5f099dc760 Use streaming downloads for Azure as well (#7579) ...

The main challenge was in the second commit, as `DownloadStream`
requires the inner to be Sync but the stream returned by the Azure SDK
wasn't Sync.

This left us with three options:

* Change the Azure SDK to return Sync streams. This was abandoned after
we realized that we couldn't just make `TokenCredential`'s returned
future Sync: it uses the `async_trait` macro and as the
`TokenCredential` trait is used in dyn form, one can't use Rust's new
"async fn in Trait" feature.
* Change `DownloadStream` to not require `Sync`. This was abandoned
after it turned into a safekeeper refactoring project.
* Put the stream into a `Mutex` and make it obtain a lock on every poll.
This adds some performance overhead but locks that actually don't do
anything should be comparatively cheap.

We went with the third option in the end as the change still represents
an improvement.

Follow up of #5446 , fixes #5563

2024-05-02 20:19:00 +02:00

..

src

use cargo-hakari to manage workspace_hack crate

2022-03-29 10:42:04 +03:00

.gitattributes

add missing files, update workspace hack

2022-04-14 20:41:21 +03:00

build.rs

add missing files, update workspace hack

2022-04-14 20:41:21 +03:00

Cargo.toml

Use streaming downloads for Azure as well (#7579)

2024-05-02 20:19:00 +02:00