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wait on pull from another client

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This commit is contained in:
Victor Vieux 2013-12-05 14:41:56 -08:00
parent e3c3f3c324
commit fb810b54ff
1 changed files with 8 additions and 2 deletions
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10
server.go
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@ -877,8 +877,14 @@ func (srv *Server) pullRepository(r *registry.Registry, out io.Writer, localName
}
// ensure no two downloads of the same image happen at the same time
if _, err := srv.poolAdd("pull", "img:"+img.ID); err != nil {
utils.Errorf("Image (id: %s) pull is already running, skipping: %v", img.ID, err)
if c, err := srv.poolAdd("pull", "img:"+img.ID); err != nil {
if c != nil {
out.Write(sf.FormatProgress(utils.TruncateID(img.ID), "Layer already being pulled by another client. Waiting.", nil))
<-c
out.Write(sf.FormatProgress(utils.TruncateID(img.ID), "Download complete", nil))
} else {
utils.Errorf("Image (id: %s) pull is already running, skipping: %v", img.ID, err)
}
if parallel {
errors <- nil
}