mirror of
https://github.com/neondatabase/neon.git
synced 2026-01-09 22:42:57 +00:00
8c13296add
## Problem We want to make `read_blk` an async function, but outside of `async_trait`, which allocates, and nightly features, we can't use async fn's in traits. ## Summary of changes * Remove all uses of `BlockReader::read_blk` in favour of using block cursors, at least where the type of the `BlockReader` is behind a generic * Introduce a `BlockReaderRef` enum that lists all implementors of `BlockReader::read_blk`. * Remove `BlockReader::read_blk` and move its implementations into inherent functions on the types instead. We don't turn `read_blk` into an async fn yet, for that we also need to modify the page cache. So this is a preparatory PR, albeit an important one. Part of #4743.