Struct StorageDriver 

pub struct StorageDriver { /* private fields */ }

High-level storage access API.

Provides programmatic access to storage-level metadata (page counts, buffer manager stats, file sizes, FSM state, table layout) without going through Cypher queries.

Obtain via crate::Database::storage_driver().

Implementations

impl StorageDriver

pub fn db_path(&self) -> &Path

Database path as reported by the storage engine.

pub fn storage_info(&self) -> StorageInfo

Aggregate storage info (page count, page size, free pages).

pub fn buffer_info(&self) -> BufferInfo

Buffer manager memory and pin statistics.

pub fn file_info(&self) -> FileInfo

File-level size statistics (data pages + WAL).

pub fn fsm_info(&self) -> FsmInfo

Free space manager summary.

pub fn wal_size(&self) -> usize

Current WAL size in bytes.

pub fn table_catalog(&self) -> Arc<TableCatalog>

Access the table catalog for reading table/column metadata.

pub fn catalog(&self) -> &Arc<Mutex<Catalog>>

Access the node/rel catalog.

pub fn vfs(&self) -> &Arc<VirtualFileSystemRegistry>

Access the virtual file system registry.

pub fn num_tables(&self) -> usize

Number of tables (node + rel) in the catalog.

pub fn num_node_tables(&self) -> usize

Number of node tables.

pub fn num_rel_tables(&self) -> usize

Number of rel tables.

pub fn total_pages(&self) -> u64

Total number of pages allocated across all data files.

pub fn total_file_size(&self) -> u64

Total data file size on disk in bytes.

pub fn pinned_frames(&self) -> usize

Number of pinned buffer frames.