kvredis

func (*KV) Ancient ¶

func (k *KV) Ancient(kind string, number uint64) ([]byte, error)

Ancient retrieves an ancient binary blob from the append-only immutable files.

func (*KV) AncientSize ¶

func (k *KV) AncientSize(kind string) (uint64, error)

AncientSize returns the ancient size of the specified category.

func (*KV) Ancients ¶

func (k *KV) Ancients() (uint64, error)

Ancients returns the ancient item numbers in the ancient store.

func (*KV) AppendAncient ¶ added in v0.0.3

func (k *KV) AppendAncient(number uint64, hash, header, body, receipt, td []byte) error

func (*KV) Close ¶

func (k *KV) Close() error

func (*KV) Compact ¶

func (k *KV) Compact(start []byte, limit []byte) error

func (*KV) Delete ¶

func (k *KV) Delete(key []byte) error

func (*KV) DiffStore ¶ added in v0.0.4

func (k *KV) DiffStore() ethdb.KeyValueStore

func (*KV) Error ¶

func (k *KV) Error() error

Error returns any accumulated error. Exhausting all the key/value pairs is not considered to be an error.

func (*KV) Get ¶

func (k *KV) Get(key []byte) ([]byte, error)

func (*KV) Has ¶

func (k *KV) Has(key []byte) (bool, error)

func (*KV) HasAncient ¶

func (k *KV) HasAncient(kind string, number uint64) (bool, error)

HasAncient returns an indicator whether the specified data exists in the ancient store.

func (*KV) Key ¶

func (k *KV) Key() []byte

Key returns the key of the current key/value pair, or nil if done. The caller should not modify the contents of the returned slice, and its contents may change on the next call to Next.

func (*KV) ModifyAncients ¶

func (k *KV) ModifyAncients(_ func(AncientWriteOp) error) (int64, error)

ModifyAncients runs a write operation on the ancient store. If the function returns an error, any changes to the underlying store are reverted. The integer return value is the total size of the written data.

func (*KV) NewBatch ¶

func (k *KV) NewBatch() ethdb.Batch

func (*KV) NewIterator ¶

func (k *KV) NewIterator(prefix []byte, start []byte) ethdb.Iterator

func (*KV) Next ¶

func (k *KV) Next() bool

Next moves the iterator to the next key/value pair. It returns whether the iterator is exhausted.

func (*KV) Path ¶

func (k *KV) Path() string

Path returns the path to the database directory.

func (*KV) Put ¶

func (k *KV) Put(key []byte, value []byte) error

func (*KV) ReadAncients ¶

func (k *KV) ReadAncients(kind string, start uint64, count uint64, maxBytes uint64) ([][]byte, error)

ReadAncients retrieves multiple items in sequence, starting from the index 'start'. It will return

• at most 'count' items,
• at least 1 item (even if exceeding the maxBytes), but will otherwise return as many items as fit into maxBytes.

func (*KV) Release ¶

func (k *KV) Release()

Release releases associated resources. Release should always succeed and can be called multiple times without causing error.

func (*KV) SetDiffStore ¶ added in v0.0.4

func (k *KV) SetDiffStore(diff ethdb.KeyValueStore)

func (*KV) Stat ¶

func (k *KV) Stat(property string) (string, error)

func (*KV) Sync ¶

func (k *KV) Sync() error

Sync flushes all in-memory ancient store data to disk.

func (*KV) TruncateAncients ¶

func (k *KV) TruncateAncients(n uint64) error

TruncateAncients discards all but the first n ancient data from the ancient store.

func (*KV) Value ¶

func (k *KV) Value() []byte

Value returns the value of the current key/value pair, or nil if done. The caller should not modify the contents of the returned slice, and its contents may change on the next call to Next.