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sled is a flash-sympathetic persistent lock-free B+ tree.

§Examples

let config = sled::ConfigBuilder::new().temporary(true).build();

let t = sled::Tree::start(config).unwrap();

t.set(b"yo!".to_vec(), b"v1".to_vec());
assert_eq!(t.get(b"yo!"), Ok(Some(b"v1".to_vec())));

t.cas(
    b"yo!".to_vec(),       // key
    Some(b"v1".to_vec()),  // old value, None for not present
    Some(b"v2".to_vec()),  // new value, None for delete
).unwrap();

let mut iter = t.scan(b"a non-present key before yo!");
assert_eq!(iter.next(), Some(Ok((b"yo!".to_vec(), b"v2".to_vec()))));
assert_eq!(iter.next(), None);

t.del(b"yo!");
assert_eq!(t.get(b"yo!"), Ok(None));

Structs§

  • A finalized ConfigBuilder that can be use multiple times to open a Tree or Log.
  • Top-level configuration for the system.
  • atomic lock-free tree An iterator over keys and values in a Tree.
  • atomic lock-free tree A flash-sympathetic persistent lock-free B+ tree

Enums§

  • An Error type encapsulating various issues that may come up in both the expected and unexpected operation of a PageCache.

Type Aliases§

  • The top-level result type for dealing with the PageCache.