Brian Goff 205625473f Close wait chan after sending status ...

This allows the caller to receive multiple times without blocking after
the first call.

This can be useful in cases like this:
```go
  ch, _  := task.Wait(ctx)
  defer func() { <-ch } // don't return until task is done
  task.Start(ctx)

  if err := doSomething(task); err != nil {
    return err
  }

  status := <- ch
  // do stuff with status
```

Since this channel is created in the `Wait()` calls and never accessible
outside, this should be safe.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>

2017-10-16 16:55:43 -04:00

5.3 KiB

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