turso

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Pekka Enberg 6a2f0d6061 Merge 'Add per page checksums' from Avinash Sajjanshetty

This patch adds checksums to Turso DB. You may check the design here in
the [RFC](https://github.com/tursodatabase/turso/issues/2178).
1. We use reserved bytes (8 bytes) to store the checksums. On every IO
read, we verify that the checksum matches.
2. We use twox hash for checksums.
3. Checksum works only on 4K pages now. It's a small change to enable
for all other sizes, I will send another PR.
4. Right now, it's not possible to switch to different algorithm or turn
off altogether. That will be added in the future PRs.
5. Checksums can be enabled only for new dbs. For existing DBs, we will
disable it.
6. To add checksums for existing DBs, we need vacuum since it would
require rewrite of whole db.

Closes #2840

2025-09-13 18:46:53 +03:00

btree.rs

Pass use usable_space() instead of hardcoding the value

2025-09-13 11:00:38 +05:30

buffer_pool.rs

Use BufferPool owned by Database instead of a static global

2025-08-14 10:29:52 +03:00

checksum.rs

Add checksums behind a feature flag

2025-09-13 11:00:39 +05:30

database.rs

rename method to verify_checksum