diff options
Diffstat (limited to 'libpod/boltdb_state.go')
-rw-r--r-- | libpod/boltdb_state.go | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/libpod/boltdb_state.go b/libpod/boltdb_state.go index 2575f0e86..9dd5ca465 100644 --- a/libpod/boltdb_state.go +++ b/libpod/boltdb_state.go @@ -424,6 +424,61 @@ func (s *BoltState) SetNamespace(ns string) error { return nil } +// GetName returns the name associated with a given ID. Since IDs are globally +// unique, it works for both containers and pods. +// Returns ErrNoSuchCtr if the ID does not exist. +func (s *BoltState) GetName(id string) (string, error) { + if id == "" { + return "", define.ErrEmptyID + } + + if !s.valid { + return "", define.ErrDBClosed + } + + idBytes := []byte(id) + + db, err := s.getDBCon() + if err != nil { + return "", err + } + defer s.deferredCloseDBCon(db) + + name := "" + + err = db.View(func(tx *bolt.Tx) error { + idBkt, err := getIDBucket(tx) + if err != nil { + return err + } + + nameBytes := idBkt.Get(idBytes) + if nameBytes == nil { + return define.ErrNoSuchCtr + } + + if s.namespaceBytes != nil { + nsBkt, err := getNSBucket(tx) + if err != nil { + return err + } + + idNs := nsBkt.Get(idBytes) + if !bytes.Equal(idNs, s.namespaceBytes) { + return define.ErrNoSuchCtr + } + } + + name = string(nameBytes) + return nil + }) + if err != nil { + return "", err + } + + return name, nil +} + // Container retrieves a single container from the state by its full ID func (s *BoltState) Container(id string) (*Container, error) { if id == "" { |