package discov import ( "fmt" "strings" "github.com/tal-tech/go-zero/core/discov/internal" ) const ( indexOfKey = iota indexOfId ) const timeToLive int64 = 10 var TimeToLive = timeToLive func extract(etcdKey string, index int) (string, bool) { if index < 0 { return "", false } fields := strings.FieldsFunc(etcdKey, func(ch rune) bool { return ch == internal.Delimiter }) if index >= len(fields) { return "", false } return fields[index], true } func extractId(etcdKey string) (string, bool) { return extract(etcdKey, indexOfId) } func makeEtcdKey(key string, id int64) string { return fmt.Sprintf("%s%c%d", key, internal.Delimiter, id) }