func check_backend(ch *elliptics.DChannel, s *elliptics.Session, addr *elliptics.DnetAddr, backend_id int32, ro bool, delay uint32) error {
checked := false
for t := range ch.Out {
st := t.(*elliptics.DnetBackendsStatus)
if st.Error != nil {
return st.Error
}
for _, b := range st.Backends {
if b.Backend == backend_id {
if b.RO != ro {
return fmt.Errorf("backend: %d: read-only mismatch: read: %v, must be: %v",
backend_id, b.RO, ro)
}
if b.Delay != delay {
return fmt.Errorf("backend: %d: delay mismatch: read: %v, must be: %v",
backend_id, b.Delay, delay)
}
checked = true
break
}
}
}
if !checked {
return fmt.Errorf("backend: %d: could not find backend", backend_id)
}
checked = false
for t := range s.BackendsStatus(addr).Out {
st := t.(*elliptics.DnetBackendsStatus)
if st.Error != nil {
return st.Error
}
for _, b := range st.Backends {
if b.Backend == backend_id {
if b.RO != ro {
return fmt.Errorf("backend: %d: check: read-only mismatch: read: %v, must be: %v",
backend_id, b.RO, ro)
}
if b.Delay != delay {
return fmt.Errorf("backend: %d: check: delay mismatch: read: %v, must be: %v",
backend_id, b.Delay, delay)
}
checked = true
break
}
}
}
if !checked {
return fmt.Errorf("backend: %d: could not find backend", backend_id)
}
return nil
}
