Returns the level of this node (0-255)

load a new file and start writing to it

Creates a cache position by combining buffer index and offset. # Arguments `idx` - The buffer index `offset` - The offset within the buffer `value_l

Reads an entry from the cache, update buffer, or entry file. # Arguments `ebw` - Entry buffer writer guard `shard_id` - ID of the shard containing th

Recovers a complete tree from persisted state This function rebuilds a tree by: 1. Creating a new blank tree 2. Restoring file sizes 3. Recovering in

Applies operations for a specific shard in order.

Sets the entry file size for a shard. # Arguments `shard_id` - ID of the shard `size` - New file size # State Changes - Updates file size - Affects

Sets the twig file size for a shard. # Arguments `shard_id` - ID of the shard `size` - New file size # State Changes - Updates file size - Affects p

Synchronizes a level 2 (9) node in the active bits Merkle tree # Arguments `pos` - Position of the node to sync (0-1)

Returns the version number of this entry.

Reads bytes at a cached position and passes them to the provided function. # Arguments `cache_key` - The key to look up `access` - A function that w

Appends a twig's Merkle tree nodes to the file # Arguments `m_tree` - Array of node hashes for the entire twig `last_entry_end_pos` - End position of

Performs a complete consistency check of the entire tree This function verifies: 1. All active twigs and their active bits trees 2. All upper tree no

Creates a new key-value pair in the database. # Arguments `ebw` - Entry buffer writer guard `key_hash` - Hash of the key to create `key` - Key to cre

Marks an entry as inactive # Arguments `sn` - Serial number of the entry to deactivate

Generate a whole block and split it into several subblocks of `subblock_size`. Each subblock is an `Arc<Vec<Vec<ChangeSet>>>` suitable for `Msg::Paylo

Generate hover blocks after a population block

Gets the current block height. # Returns The current block height # Performance - Direct access - No disk I/O - No synchronization

get an entry from a KH2E record

Gets a reference to the entry cache. # Returns Reference to the entry cache

Builds a compact historical-existence proof for `sn`. - Ignores Right Path activeness checks - Produces a classic sibling-hash path suitable for veri

Gets a reference to a specific sub-job. # Arguments `idx` - Index of the sub-job # Returns Reference to the requested sub-job

Creates a null entry representing an empty entry. Null entries have empty key and value, `NULL_ENTRY_VERSION` as version, and `u64::MAX` as serial nu

Reloads metadata from disk. This method reads both metadata files and uses the most recent valid state. If encryption is enabled, the files are decry

Creates a sentry entry for the given shard and serial number. # Arguments `shard_id` - The shard ID (must be < `SHARD_COUNT`). `sn` - The serial num

Set the current writable file (non-O_DIRECT). Used after inserting the latest segment via `insert()`.

Sets the next serial number for a shard. # Arguments `shard_id` - ID of the shard `sn` - Next serial number to use # State Changes - Updates serial

Check if hover should be generated after this population block

Try to get a reference to the file segment containing the given offset. Returns `None` if the file segment does not exist.

Compares active information with a record for testing. # Arguments `updater` - Updater instance `rec` - Optional operation record to compare against

Checks if a key exists in the cache. # Arguments `cache_key` - The key to check # Returns `true` if the key exists and has a valid position, `fals

Adds a new sub-job to this task. # Arguments `sub_id` - ID for the new sub-job `shard_id` - ID of the shard `file_pos` - Position in the entry file

Adds a job to be processed. # Arguments `job` - Job to add `only_disk` - Whether to only read from disk

Adds an operation with both new and old values. # Arguments `op_type` - Type of operation (create, read, write, delete) `shard_id` - ID of the shard

Verifies the consistency of all upper tree nodes This function checks that all nodes in the upper levels of the tree (above twigs) have correct hash

Clears all samples

Closes all file handles and flushes pending writes

deactivate and recreate an old active entry

Returns detailed statistics including multiple percentiles