| // Copyright 2018 The gVisor Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package refs |
| |
| // +stateify savable |
| type savedReference struct { |
| obj interface{} |
| } |
| |
| func (w *WeakRef) saveObj() savedReference { |
| // We load the object directly, because it is typed. This will be |
| // serialized and loaded as a typed value. |
| return savedReference{w.obj.Load()} |
| } |
| |
| func (w *WeakRef) loadObj(v savedReference) { |
| // See note above. This will be serialized and loaded typed. So we're okay |
| // as long as refs aren't changing during save and load (which they should |
| // not be). |
| // |
| // w.user is loaded before loadObj is called. |
| w.init(v.obj.(RefCounter), w.user) |
| } |
