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filer leveldb store: a bit more efficient directory listing with prefix

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Chris Lu 2020-11-22 21:10:41 -08:00
parent d3be2ceedd
commit eab53ea80d
2 changed files with 10 additions and 10 deletions
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10
weed/filer/leveldb/leveldb_store.go
View file

@ -162,14 +162,14 @@ func (store *LevelDBStore) DeleteFolderChildren(ctx context.Context, fullpath we
return nil
}
func (store *LevelDBStore) ListDirectoryPrefixedEntries(ctx context.Context, fullpath weed_util.FullPath, startFileName string, inclusive bool, limit int, prefix string) (entries []*filer.Entry, err error) {
return nil, filer.ErrUnsupportedListDirectoryPrefixed
}
func (store *LevelDBStore) ListDirectoryEntries(ctx context.Context, fullpath weed_util.FullPath, startFileName string, inclusive bool,
limit int) (entries []*filer.Entry, err error) {
return store.ListDirectoryPrefixedEntries(ctx, fullpath, startFileName, inclusive, limit, "")
}
directoryPrefix := genDirectoryKeyPrefix(fullpath, "")
func (store *LevelDBStore) ListDirectoryPrefixedEntries(ctx context.Context, fullpath weed_util.FullPath, startFileName string, inclusive bool, limit int, prefix string) (entries []*filer.Entry, err error) {
directoryPrefix := genDirectoryKeyPrefix(fullpath, prefix)
iter := store.db.NewIterator(&leveldb_util.Range{Start: genDirectoryKeyPrefix(fullpath, startFileName)}, nil)
for iter.Next() {

10
weed/filer/leveldb2/leveldb2_store.go
View file

@ -171,14 +171,14 @@ func (store *LevelDB2Store) DeleteFolderChildren(ctx context.Context, fullpath w
return nil
}
func (store *LevelDB2Store) ListDirectoryPrefixedEntries(ctx context.Context, fullpath weed_util.FullPath, startFileName string, inclusive bool, limit int, prefix string) (entries []*filer.Entry, err error) {
return nil, filer.ErrUnsupportedListDirectoryPrefixed
}
func (store *LevelDB2Store) ListDirectoryEntries(ctx context.Context, fullpath weed_util.FullPath, startFileName string, inclusive bool,
limit int) (entries []*filer.Entry, err error) {
return store.ListDirectoryPrefixedEntries(ctx, fullpath, startFileName, inclusive, limit, "")
}
directoryPrefix, partitionId := genDirectoryKeyPrefix(fullpath, "", store.dbCount)
func (store *LevelDB2Store) ListDirectoryPrefixedEntries(ctx context.Context, fullpath weed_util.FullPath, startFileName string, inclusive bool, limit int, prefix string) (entries []*filer.Entry, err error) {
directoryPrefix, partitionId := genDirectoryKeyPrefix(fullpath, prefix, store.dbCount)
lastFileStart, _ := genDirectoryKeyPrefix(fullpath, startFileName, store.dbCount)
iter := store.dbs[partitionId].NewIterator(&leveldb_util.Range{Start: lastFileStart}, nil)