77 lines
1.3 KiB
Go
77 lines
1.3 KiB
Go
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package leveldb
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import (
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"github.com/syndtr/goleveldb/leveldb"
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"github.com/syndtr/goleveldb/leveldb/opt"
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"github.com/sdstack/storage/cache"
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)
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type config struct {
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Store string
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}
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type LevelDB struct {
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db *leveldb.DB
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}
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func init() {
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cache.RegisterCache("leveldb", &LevelDB{})
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}
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func (c *LevelDB) Configure(cfg interface{}) error {
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return nil
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}
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func (c *LevelDB) Open() error {
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var err error
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c.db, err = leveldb.OpenFile("/srv/store/sc01/db", &opt.Options{
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Compression: opt.NoCompression,
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})
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if err != nil {
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return err
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}
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return nil
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}
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func (c *LevelDB) Close() error {
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return c.db.Close()
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}
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func (c *LevelDB) Set(k interface{}, v interface{}) error {
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return c.db.Put(k.([]byte), v.([]byte), nil)
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}
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func (c *LevelDB) Get(k interface{}) (interface{}, error) {
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return c.db.Get(k.([]byte), nil)
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}
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func (c *LevelDB) Del(k interface{}) error {
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return c.db.Delete(k.([]byte), nil)
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}
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func (c *LevelDB) Exists(k interface{}) (bool, error) {
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return c.db.Has(k.([]byte), nil)
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}
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func (c *LevelDB) Keys() ([]interface{}, error) {
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var keys []interface{}
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var err error
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iter := c.db.NewIterator(nil, nil)
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for iter.Next() {
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keys = append(keys, string(iter.Key()))
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}
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iter.Release()
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err = iter.Error()
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return keys, err
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}
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func (c *LevelDB) OnEvict(f func(interface{}, interface{})) error {
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return nil
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}
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func (c *LevelDB) Purge() error {
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return nil
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}
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