func pickupAddrs(addrs []string, n int, connDuration lrucache.Cache, connError lrucache.Cache) []string {
if len(addrs) <= n {
return addrs
}
goodAddrs := make([]racer, 0)
unknownAddrs := make([]string, 0)
badAddrs := make([]string, 0)
for _, addr := range addrs {
if d, ok := connDuration.GetQuiet(addr); ok {
if d1, ok := d.(time.Duration); !ok {
glog.Errorf("%#v for %#v is not a time.Duration", d, addr)
} else {
goodAddrs = append(goodAddrs, racer{addr, d1})
}
} else if e, ok := connError.GetQuiet(addr); ok {
if _, ok := e.(error); !ok {
glog.Errorf("%#v for %#v is not a error", e, addr)
} else {
badAddrs = append(badAddrs, addr)
}
} else {
unknownAddrs = append(unknownAddrs, addr)
}
}
addrs1 := make([]string, 0, n)
sort.Sort(racers(goodAddrs))
if len(goodAddrs) > n/2 {
goodAddrs = goodAddrs[:n/2]
}
for _, r := range goodAddrs {
addrs1 = append(addrs1, r.addr)
}
for _, addrs2 := range [][]string{unknownAddrs, badAddrs} {
if len(addrs1) < n && len(addrs2) > 0 {
m := n - len(addrs1)
if len(addrs2) > m {
helpers.ShuffleStringsN(addrs2, m)
addrs2 = addrs2[:m]
}
addrs1 = append(addrs1, addrs2...)
}
}
return addrs1
}
func pickupAddrs(addrs []string, n int, duration lrucache.Cache) []string {
if len(addrs) <= n {
return addrs
}
goodAddrs := make([]racer, 0)
unknownAddrs := make([]string, 0)
for _, addr := range addrs {
d, ok := duration.GetQuiet(addr)
if ok {
d1, ok := d.(time.Duration)
if !ok {
glog.Errorf("%#v for %#v is not a time.Duration", d, addr)
} else {
goodAddrs = append(goodAddrs, racer{addr, d1})
}
} else {
unknownAddrs = append(unknownAddrs, addr)
}
}
sort.Sort(racers(goodAddrs))
if len(goodAddrs) > n/2 {
goodAddrs = goodAddrs[:n/2]
}
goodAddrs1 := make([]string, len(goodAddrs), n)
for i, r := range goodAddrs {
goodAddrs1[i] = r.addr
}
shuffle(unknownAddrs)
if len(goodAddrs1)+len(unknownAddrs) > n {
unknownAddrs = unknownAddrs[:n-len(goodAddrs1)]
}
return append(goodAddrs1, unknownAddrs...)
}