kernel::BlockTreeDB

Synopsis

Declared in <node/blockstorage.h>

class BlockTreeDB
    : public CDBWrapper

Name	Description
`CDBWrapper`	Wraps a LevelDB database, providing typed, serialized key-value access.

Name	Description
`operator=` [deleted]	Copy assignment is disabled.
`CompactFull`	Perform a blocking full compaction of the underlying LevelDB.
`DynamicMemoryUsage`	Get an estimate of LevelDB memory usage (in bytes).
`Erase`	Removes the value stored under the given key.
`EstimateSize`	Estimates the on-disk size of the entries in the given key range.
`Exists`	Checks whether a value is stored under the given key.
`GetProperty`	Return a LevelDB property value, if available.
`IsEmpty`	Return true if the database managed by this class contains no entries.
`LoadBlockIndexGuts`	Load every block-index entry from the database into memory.
`NewIterator`	Creates a new iterator over the database. The caller owns the returned iterator.
`Read`	Reads and de-obfuscates the value stored under the given key.
`ReadBlockFileInfo`	Read the stored info for one block file.
`ReadFlag`	Read a named boolean flag.
`ReadLastBlockFile`	Read the number of the last block file in use.
`ReadReindexing`	Read whether a reindex was in progress.
`Write`	Writes a single key-value pair to the database.
`WriteBatch`	Atomically applies all writes and erases queued in a batch.
`WriteBatchSync`	Atomically write block-file info, the last-file marker, and block-index entries.
`WriteFlag`	Persist a named boolean flag.
`WriteReindexing`	Persist whether a reindex is in progress.

Name	Description
`HasKeyStartingWith`	Probe an unopened database for a key prefix. Return true if a database at path exists and contains at least 1 entry beginning with prefix; missing or empty databases return false, and database errors throw dbwrapper_error.

Name	Description
`BlockTreeDB`	Inherit the CDBWrapper constructors to open the underlying database.

Name	Description
`::dbwrapper_private::GetObfuscation`	Work around circular dependency, as well as for testing in dbwrapper_tests. Database obfuscation should be considered an implementation detail of the specific database.
`::index_util::LookUpOne`	Look up a single index entry for a block, trying the height index then the hash index.