func (self *Gatekeeper) load(name string, num uint, counts map[uint]uint) error {
log.Printf("Gatekeeper.load(%v, %v)\n", name, num)
file, err := util.Open(name)
if err != nil {
return err
}
cnt := uint64(0)
for {
n1, key, err := file.ReadLenval()
if err == io.EOF {
break
}
if err != nil {
return err
}
u, err := UrlTransform(string(key))
if err != nil {
return err
}
n2, err := file.SkipLenval()
if err != nil {
return err
}
nv := Value{
FNum: num,
Offset: cnt,
Len: n1 + n2,
}
old := self.trie.Add([]byte(u), nv)
if old != nil {
old := old.(Value)
if old.Len != 0 {
counts[old.FNum] -= 1
}
}
cnt += n1 + n2
counts[num] += 1
}
return nil
}
func (self *Gatekeeper) Read(val Value) (string, error) {
log.Printf("Gatekeeper.Read(%+v)\n", val)
f, err := util.Open(self.dir + "/" + strconv.Itoa(int(val.FNum)))
if err != nil {
return "", err
}
if _, err := f.Seek(int64(val.Offset), 0); err != nil {
return "", err
}
if _, err := f.SkipLenval(); err != nil {
return "", err
}
_, res, err := f.ReadLenval()
if err != nil {
return "", err
}
log.Printf("Gatekeeper.Read(%+v) OK\n", val)
return string(res), nil
}