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Merge pull request #8871 from tonistiigi/start-wait-hijack 

Wait for hijack on docker start command
This commit is contained in:
Jessie Frazelle 2014-11-04 08:46:56 -08:00
parent fa59fe997c 79a77a396e
commit a34f31b488
1 changed files with 19 additions and 1 deletions
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20
api/client/commands.go
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@ -627,6 +627,8 @@ func (cli *DockerCli) CmdStart(args ...string) error {
return nil return nil
} }
hijacked := make(chan io.Closer)
if *attach || *openStdin { if *attach || *openStdin {
if cmd.NArg() > 1 { if cmd.NArg() > 1 {
return fmt.Errorf("You cannot start and attach multiple containers at once.") return fmt.Errorf("You cannot start and attach multiple containers at once.")
@ -663,8 +665,24 @@ func (cli *DockerCli) CmdStart(args ...string) error {
v.Set("stderr", "1") v.Set("stderr", "1")
cErr = promise.Go(func() error { cErr = promise.Go(func() error {
return cli.hijack("POST", "/containers/"+cmd.Arg(0)+"/attach?"+v.Encode(), tty, in, cli.out, cli.err, nil, nil) return cli.hijack("POST", "/containers/"+cmd.Arg(0)+"/attach?"+v.Encode(), tty, in, cli.out, cli.err, hijacked, nil)
}) })
} else {
close(hijacked)
}
// Acknowledge the hijack before starting
select {
case closer := <-hijacked:
// Make sure that the hijack gets closed when returning (results
// in closing the hijack chan and freeing server's goroutines)
if closer != nil {
defer closer.Close()
}
case err := <-cErr:
if err != nil {
return err
}
} }
var encounteredError error var encounteredError error