func (r *IdxReader) Read(b []byte) (int, error) {
if len(b) == 0 {
return 0, nil
}
readed := 0
buf := [HashSize]byte{}
for {
n, err := ReadHelper(r.r, buf[:])
if n != HashSize {
return readed, errors.New("fastpush IdxReader error: size % HashSize != 0")
}
if err == io.EOF && n == 0 {
break
} else if err != nil && err != io.EOF {
return readed, err
}
find := false
if fingerdb != nil {
_, find = fingerdb.Find(buf)
}
if find {
b[readed] = '1'
} else {
b[readed] = '0'
}
readed++
if readed == len(b) {
break
}
}
if readed == 0 {
return 0, io.EOF
}
return readed, nil
}
func (r *CntReader) Read(b []byte) (int, error) {
if len(b) == 0 {
return 0, io.EOF
}
readed := 0
hashbuf := [HashSize]byte{}
for {
if len(r.cur) == 0 {
n, err := ReadHelper(r.r, hashbuf[:])
if err == io.EOF && n == 0 {
break
} else if err != nil && err != io.EOF {
return readed, err
}
if n != HashSize {
return readed, fmt.Errorf("read format error: size not HashSize")
}
//fmt.Printf("read hash [%x]\n",hashbuf)
length, err := binary.ReadUvarint(r.r)
if err != nil {
return readed, err
}
//exists
if length == 0 {
metadata, find := fingerdb.Find(hashbuf)
if !find {
return readed, fmt.Errorf("hash not found")
}
file, err := fingerdb.NewBlockReader(metadata)
if err != nil {
return readed, err
}
/*
blk,find := blockMap[hashbuf]
if !find {
return readed,fmt.Errorf("hash not found")
}
filename := blk.filepath
off := blk.off
file,err := fileOpenSeeker.OpenSeek(filename,off)
if err != nil{
return readed,err
}
len := blk.length*/
len := metadata.Length
r.cur = make([]byte, len, len)
n, err := ReadHelper(file, r.cur)
if err != nil && err != io.EOF {
return readed, err
}
if uint32(n) != len {
return readed, fmt.Errorf("read local file length wrong")
}
file.Close()
} else {
r.cur = make([]byte, length, length)
n, err := ReadHelper(r.r, r.cur)
r.container.WriteBlock(hashbuf, r.cur)
if err != nil && err != io.EOF {
return readed, err
}
if uint64(n) != length {
return readed, fmt.Errorf("read net file length wrong")
}
}
}
n := copy(b[readed:], r.cur)
readed += n
r.cur = r.cur[n:]
if readed >= len(b) {
break
}
}
if readed == 0 {
return 0, io.EOF
}
return readed, nil
}