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Comment: add description for some code which hard to understand
Signed-off-by: Hu Keping <hukeping@huawei.com>
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3b443abec2
2 changed files with 8 additions and 1 deletions
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@ -111,8 +111,12 @@ func (s *Server) getEvents(ctx context.Context, w http.ResponseWriter, r *http.R
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d := s.daemon
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es := d.EventsService
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w.Header().Set("Content-Type", "application/json")
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outStream := ioutils.NewWriteFlusher(w)
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outStream.Write(nil) // make sure response is sent immediately
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// Write an empty chunk of data.
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// This is to ensure that the HTTP status code is sent immediately,
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// so that it will not block the receiver.
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outStream.Write(nil)
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enc := json.NewEncoder(outStream)
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getContainerID := func(cn string) string {
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@ -40,6 +40,9 @@ func (daemon *Daemon) ContainerStats(prefixOrName string, config *ContainerStats
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}
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if config.Stream {
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// Write an empty chunk of data.
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// This is to ensure that the HTTP status code is sent immediately,
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// even if the container has not yet produced any data.
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config.OutStream.Write(nil)
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}
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