Crate kvdb

Key-Value store abstraction.

Structs

• DBTransaction
  Write transaction. Batches a sequence of put/delete operations for efficiency.
• IoStats
  Statistic for the span period

Enums

• DBOp
  Database operation.
• IoStatsKind
  Statistic kind to query.

Constants

• PREFIX_LEN
  Required length of prefixes.

Traits

• KeyValueDB
  Generic key-value database.

Functions

• end_prefix
  For a given start prefix (inclusive), returns the correct end prefix (non-inclusive). This assumes the key bytes are ordered in lexicographical order. Since key length is not limited, for some case we return None because there is no bounded limit (every keys in the serie [], [255], [255, 255] …).

Type Definitions

• DBKey
  Database keys.
• DBKeyValue
  A tuple holding key and value data, used in the iterator item type.
• DBValue
  Database value.