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baradb

package module

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Versions in this module

v0

v0.2.0

Apr 6, 2026

v0.1.1

Jul 7, 2023

Changes in this version

type DB

+ func Launch(options DBOptions) (*DB, error)

type DBOptions

+ IndexType index.IndexType

v0.1.0

Jul 2, 2023

Changes in this version

+ var DefaultDBOptions = DBOptions

+ var DefaultWriteBatchOptions = WriteBatchOptions

+ var ErrDatabaseIsUsed = errors.New("the database is used by other process")

+ var ErrDirectoryCorrupted = errors.New("maybe the directory of the DB is corrupted")

+ var ErrDirectoryIsEmpty = errors.New("data path is empty")

+ var ErrExceedMaxBatchNumber = errors.New("exceed the maximum batch number")

+ var ErrFileNotFound = errors.New("file not found")

+ var ErrIndexUpdateFailed = errors.New("failed to update index")

+ var ErrInvalidMergenceThreshold = errors.New("invalid mergence threshold")

+ var ErrKeyIsEmpty = errors.New("the key is empty")

+ var ErrKeyNotFound = errors.New("key not found")

+ var ErrMaxDataFileSizeIsNegative = errors.New("the maximum size of data file is negative")

+ var ErrMergenceIsInProgress = errors.New("mergence is in progress, try again later")

+ var ErrNoMoreDiskSpace = errors.New("no more disk space to store data")

+ type DB struct

+ func LaunchDB(options DBOptions) (*DB, error)

+ func (db *DB) Backup(directory string) error

+ func (db *DB) Close() error

+ func (db *DB) Delete(key []byte) error

+ func (db *DB) Fold(fn userOperationFunc) error

+ func (db *DB) Fork(directory string) (*DB, error)

+ func (db *DB) Get(key []byte) ([]byte, error)

+ func (db *DB) ListKeys() [][]byte

+ func (db *DB) Merge() error

+ func (db *DB) NewItrerator(options indexer.IteratorOptions) *Iterator

+ func (db *DB) NewWriteBatch(options WriteBatchOptions) *WriteBatch

+ func (db *DB) Put(key, value []byte) error

+ func (db *DB) Stat() *Stat

+ func (db *DB) Sync() error

+ type DBOptions struct

+ Directory string

+ IndexerType indexer.IndexerType

+ MMapAtStartup bool

+ MaxDataFileSize int64

+ MergenceThreshold float64

+ SyncThreshold uint

+ SyncWrites bool

+ type Iterator struct

+ func (it *Iterator) Close()

+ func (it *Iterator) Key() []byte

+ func (it *Iterator) Next()

+ func (it *Iterator) Rewind()

+ func (it *Iterator) Seek(key []byte)

+ func (it *Iterator) Valid() bool

+ func (it *Iterator) Value() ([]byte, error)

+ type Stat struct

+ DataFileNumber uint

+ DiskSize int64

+ KeyNumber uint

+ ReclaimableSize int64

+ func (s Stat) String() string

+ type WriteBatch struct

+ func (wb *WriteBatch) Commit() error

+ func (wb *WriteBatch) Delete(key []byte) error

+ func (wb *WriteBatch) Put(key, value []byte) error

+ type WriteBatchOptions struct

+ MaxBatchNumber int

+ SyncWrites bool