| /* |
| * |
| * Copyright 2019 gRPC 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 wrr contains the interface and common implementations of wrr |
| // algorithms. |
| package wrr |
| |
| // WRR defines an interface that implements weighted round robin. |
| type WRR interface { |
| // Add adds an item with weight to the WRR set. |
| // |
| // Add and Next need to be thread safe. |
| Add(item interface{}, weight int64) |
| // Next returns the next picked item. |
| // |
| // Add and Next need to be thread safe. |
| Next() interface{} |
| } |