diff options
Diffstat (limited to 'swarm/storage/database.go')
-rw-r--r-- | swarm/storage/database.go | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/swarm/storage/database.go b/swarm/storage/database.go deleted file mode 100644 index 12367b905..000000000 --- a/swarm/storage/database.go +++ /dev/null @@ -1,82 +0,0 @@ -// Copyright 2016 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. - -package storage - -// this is a clone of an earlier state of the ethereum ethdb/database -// no need for queueing/caching - -import ( - "github.com/ethereum/go-ethereum/metrics" - "github.com/syndtr/goleveldb/leveldb" - "github.com/syndtr/goleveldb/leveldb/iterator" - "github.com/syndtr/goleveldb/leveldb/opt" -) - -const openFileLimit = 128 - -type LDBDatabase struct { - db *leveldb.DB -} - -func NewLDBDatabase(file string) (*LDBDatabase, error) { - // Open the db - db, err := leveldb.OpenFile(file, &opt.Options{OpenFilesCacheCapacity: openFileLimit}) - if err != nil { - return nil, err - } - - database := &LDBDatabase{db: db} - - return database, nil -} - -func (db *LDBDatabase) Put(key []byte, value []byte) error { - metrics.GetOrRegisterCounter("ldbdatabase.put", nil).Inc(1) - - return db.db.Put(key, value, nil) -} - -func (db *LDBDatabase) Get(key []byte) ([]byte, error) { - metrics.GetOrRegisterCounter("ldbdatabase.get", nil).Inc(1) - - dat, err := db.db.Get(key, nil) - if err != nil { - return nil, err - } - return dat, nil -} - -func (db *LDBDatabase) Delete(key []byte) error { - return db.db.Delete(key, nil) -} - -func (db *LDBDatabase) NewIterator() iterator.Iterator { - metrics.GetOrRegisterCounter("ldbdatabase.newiterator", nil).Inc(1) - - return db.db.NewIterator(nil, nil) -} - -func (db *LDBDatabase) Write(batch *leveldb.Batch) error { - metrics.GetOrRegisterCounter("ldbdatabase.write", nil).Inc(1) - - return db.db.Write(batch, nil) -} - -func (db *LDBDatabase) Close() { - // Close the leveldb database - db.db.Close() -} |