func getInitialView(bindAddr string, initialProc string) *view.View {
hostname, err := os.Hostname()
if err != nil {
log.Fatalln(err)
}
if initialProc == "" {
var updates []view.Update
switch {
case strings.Contains(hostname, "node-"): // emulab.net
updates = []view.Update{
view.Update{Type: view.Join, Process: view.Process{"10.1.1.2:5000"}},
view.Update{Type: view.Join, Process: view.Process{"10.1.1.3:5000"}},
view.Update{Type: view.Join, Process: view.Process{"10.1.1.4:5000"}},
}
default:
updates = []view.Update{
view.Update{Type: view.Join, Process: view.Process{"[::]:5000"}},
view.Update{Type: view.Join, Process: view.Process{"[::]:5001"}},
view.Update{Type: view.Join, Process: view.Process{"[::]:5002"}},
}
}
hardCodedView := view.NewWithUpdates(updates...)
// don't ask for current view if the process is in the hardCodedView
if hardCodedView.HasMember(view.Process{bindAddr}) {
return hardCodedView
}
for _, u := range updates {
v, err := client.GetCurrentView(u.Process)
if err != nil {
log.Println("Failed to get current view from process %v: %v\n", u.Process, err)
continue
}
if v.Equal(hardCodedView) {
return hardCodedView
} else {
return v
}
}
log.Fatalln("Fatal: None of the hard coded initial processes are responsive.")
return nil
} else {
process := view.Process{initialProc}
initialView, err := client.GetCurrentView(process)
if err != nil {
log.Fatalf("Failed to get current view from process %v: %v\n", process, err)
}
return initialView
}
}
func getInitialView() (*view.View, error) {
hostname, err := os.Hostname()
if err != nil {
log.Panicln(err)
}
if *initialProcess == "" {
switch {
case strings.Contains(hostname, "node-"): // emulab.net
updates := []view.Update{view.Update{Type: view.Join, Process: view.Process{"10.1.1.2:5000"}},
view.Update{Type: view.Join, Process: view.Process{"10.1.1.3:5000"}},
view.Update{Type: view.Join, Process: view.Process{"10.1.1.4:5000"}},
}
return view.NewWithUpdates(updates...), nil
default:
updates := []view.Update{view.Update{Type: view.Join, Process: view.Process{"[::]:5000"}},
view.Update{Type: view.Join, Process: view.Process{"[::]:5001"}},
view.Update{Type: view.Join, Process: view.Process{"[::]:5002"}},
}
return view.NewWithUpdates(updates...), nil
}
} else {
process := view.Process{*initialProcess}
initialView, err := client.GetCurrentView(process)
if err != nil {
log.Fatalf("Failed to get current view from process %v: %v\n", process, err)
}
return initialView, nil
}
}
func getFurtherViews() (*view.View, error) {
view, err := client.GetCurrentView(view.Process{*retryProcess})
if err != nil {
return nil, err
}
return view, nil
}
func getFurtherViewsFunc(retryProcess string) func() (*view.View, error) {
return func() (*view.View, error) {
view, err := client.GetCurrentView(view.Process{retryProcess})
if err != nil {
return nil, err
}
return view, nil
}
}