| /* |
| Copyright 2014 The Kubernetes 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 allocator |
| |
| // Interface manages the allocation of items out of a range. Interface |
| // should be threadsafe. |
| type Interface interface { |
| Allocate(int) (bool, error) |
| AllocateNext() (int, bool, error) |
| Release(int) error |
| ForEach(func(int)) |
| |
| // For testing |
| Has(int) bool |
| |
| // For testing |
| Free() int |
| } |
| |
| // Snapshottable is an Interface that can be snapshotted and restored. Snapshottable |
| // should be threadsafe. |
| type Snapshottable interface { |
| Interface |
| Snapshot() (string, []byte) |
| Restore(string, []byte) error |
| } |
| |
| type AllocatorFactory func(max int, rangeSpec string) Interface |
