| /* |
| Copyright (c) 2014 VMware, Inc. All Rights Reserved. |
| |
| 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 progress |
| |
| // Sinker defines what is expected of a type that can act as a sink for |
| // progress reports. The semantics are as follows. If you call Sink(), you are |
| // responsible for closing the returned channel. Closing this channel means |
| // that the related task is done, or resulted in error. |
| type Sinker interface { |
| Sink() chan<- Report |
| } |
| |
| // SinkFunc defines a function that returns a progress report channel. |
| type SinkFunc func() chan<- Report |
| |
| // Sink makes the SinkFunc implement the Sinker interface. |
| func (fn SinkFunc) Sink() chan<- Report { |
| return fn() |
| } |
