Module wal 

Structs

WalFrame

WalHeader

Constants

WAL_FRAME_HEADER_SIZE

WAL_HEADER_SIZE

WAL_MAGIC_1

WAL_MAGIC_2

Functions

is_wal_header

parse_wal_frames

Parse all frames from a WAL file, grouped by salt1 (transaction identifier). Returns BTreeMap<salt1, Vec> preserving file order within each group.

recover_layer2

Layer 2: extract records from WAL frames that haven’t been checkpointed to main DB.

recover_layer3_deltas

Layer 3: compare WAL pages against main DB to detect row-level changes.

wal_frame_offset