61 lines
1023 B
Go
61 lines
1023 B
Go
package inmem
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import (
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"github.com/ryszard/goskiplist/skiplist"
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)
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type InMemIterator struct {
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store *InMemStore
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iterator skiplist.Iterator
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valid bool
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}
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func newInMemIterator(store *InMemStore) *InMemIterator {
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rv := InMemIterator{
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store: store,
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iterator: store.list.Iterator(),
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}
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return &rv
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}
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func (i *InMemIterator) SeekFirst() {
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i.Seek([]byte{0})
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}
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func (i *InMemIterator) Seek(k []byte) {
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i.valid = i.iterator.Seek(string(k))
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}
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func (i *InMemIterator) Next() {
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i.valid = i.iterator.Next()
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}
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func (i *InMemIterator) Current() ([]byte, []byte, bool) {
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if i.valid {
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return []byte(i.Key()), []byte(i.Value()), true
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}
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return nil, nil, false
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}
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func (i *InMemIterator) Key() []byte {
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if i.valid {
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return []byte(i.iterator.Key().(string))
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}
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return nil
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}
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func (i *InMemIterator) Value() []byte {
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if i.valid {
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return []byte(i.iterator.Value().(string))
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}
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return nil
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}
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func (i *InMemIterator) Valid() bool {
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return i.valid
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}
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func (i *InMemIterator) Close() {
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i.iterator.Close()
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}
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