tree e9c0e4cb660a96825708df5e987bfb8678a88ab2
parent 75e5ff36f363f6a84a3dce209446774ff2d13076
author Brad Fitzpatrick <bradfitz@golang.org> 1493137605 +0000
committer Brad Fitzpatrick <bradfitz@golang.org> 1493141435 +0000

imports: wait for fastWalk workers to finish before returning (take 2)

This is Joël Stemmer's https://golang.org/cl/40092 again, but with
a fix to prevent workers from deadlocking on send if the caller had
already started to shut down. See:

https://github.com/golang/go/issues/16399#issuecomment-293278556

Updates golang/go#16399
Fixes golang/go#20109 (it looks like)

Change-Id: I3d1cf6f24563d02e1369a4496c2d37dcc1f5e5b8
Reviewed-on: https://go-review.googlesource.com/41681
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Joël Stemmer <jstemmer@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>