Module txn 

Atomic database writes backed by one RocksDB write batch.

A transaction queues operations for maps owned by one database engine and commits them only when Txn::execute consumes it. Typed operations use the database codec, while raw operations preserve caller-provided bytes.

Structs

Keys 🔒

Record parser yielding each queued key with its resolved map.

Txn

Atomic write batch spanning one or more column families from one database.

Enums

Tag 🔒

Record tags per rocksdb write_batch.cc; puts and deletes against column family id 0 encode as the legacy untagged types.

Constants

HEADER 🔒

Batch representation header: a fixed64 sequence then a fixed32 count.

PER_OP 🔒

Worst-case per-record overhead: a type tag and three varint32s.

Functions

next_record 🔒

Decodes one record into its column family identifier and borrowed key.

size_hint 🔒

Estimates write-batch capacity for a reusable sequence of raw pairs.

take_varint32 🔒

Takes one RocksDB varint32 from the front of a batch record.

take_varstring 🔒

Takes one length-prefixed byte string from the front of a batch record.