34 lines
1.1 KiB
Go
34 lines
1.1 KiB
Go
|
/*
|
||
|
|
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()
|
||
|
|
}
|