func newAggregator(allBackends *libswarm.Client, server *libswarm.Server, args []string) (*aggregator, error) {
a := &aggregator{server: server}
for _, argString := range args {
args, err := shlex.Split(argString)
if err != nil {
return nil, err
}
if len(args) == 0 {
return nil, fmt.Errorf("empty backend string")
}
log.Printf("aggregator: spawning %s(%#v)\n", args[0], args[1:])
_, b, err := allBackends.Attach(args[0])
if err != nil {
return nil, err
}
i, err := b.Spawn(args[1:]...)
if err != nil {
return nil, err
}
a.backends = append(a.backends, i)
}
return a, nil
}
func child(t *testing.T, server *stubServer, i *libswarm.Client, name string) *libswarm.Client {
_, child, err := i.Attach(name)
if err != nil {
t.Fatal(err)
}
return child
}