func NoContent(rd io.Reader, offset int64) bool {
if !ReaderDone(rd) {
return false
}
conn := redisPool.Get()
defer conn.Close()
strlen, err := redis.Int64(conn.Do("STRLEN", rd.(*reader).channel.id()))
if err != nil {
return false
}
return offset > (strlen - 1)
}
func (r *reader) fetch(length int) ([]byte, error) {
conn := redisPool.Get()
defer conn.Close()
start, end := r.offset, r.offset+int64(length)
conn.Send("MULTI")
conn.Send("GETRANGE", r.channel.id(), start, end-1)
conn.Send("STRLEN", r.channel.id())
conn.Send("EXISTS", r.channel.doneId())
conn.Send("EXPIRE", r.channel.id(), redisChannelExpire)
list, err := redis.Values(conn.Do("EXEC"))
data, err := redis.Bytes(list[0], err)
size, err := redis.Int64(list[1], err)
done, err := redis.Bool(list[2], err)
if r.buffered = end < size; !r.buffered && done {
err = io.EOF
}
return data, err
}