| 148 | } |
| 149 | |
| 150 | func loadState(root string) (*State, error) { |
| 151 | stateFilePath, err := securejoin.SecureJoin(root, stateFilename) |
| 152 | if err != nil { |
| 153 | return nil, err |
| 154 | } |
| 155 | f, err := os.Open(stateFilePath) |
| 156 | if err != nil { |
| 157 | if errors.Is(err, os.ErrNotExist) { |
| 158 | return nil, ErrNotExist |
| 159 | } |
| 160 | return nil, err |
| 161 | } |
| 162 | defer f.Close() |
| 163 | var state *State |
| 164 | if err := json.NewDecoder(f).Decode(&state); err != nil { |
| 165 | return nil, err |
| 166 | } |
| 167 | // Cgroup v1 fs manager expect Resources to never be nil. |
| 168 | if state.Config.Cgroups.Resources == nil { |
| 169 | state.Config.Cgroups.Resources = &cgroups.Resources{} |
| 170 | } |
| 171 | return state, nil |
| 172 | } |
| 173 | |
| 174 | // validateID checks if the supplied container ID is valid, returning |
| 175 | // the ErrInvalidID in case it is not. |