52 lines
943 B
Go
52 lines
943 B
Go
package database
|
|
|
|
import (
|
|
"bytes"
|
|
"sort"
|
|
|
|
"database.orly/indexes/types"
|
|
"github.com/dgraph-io/badger/v4"
|
|
"lol.mleku.dev/chk"
|
|
)
|
|
|
|
func (d *D) GetSerialsByRange(idx Range) (
|
|
sers types.Uint40s, err error,
|
|
) {
|
|
if err = d.View(
|
|
func(txn *badger.Txn) (err error) {
|
|
it := txn.NewIterator(
|
|
badger.IteratorOptions{
|
|
Reverse: true,
|
|
},
|
|
)
|
|
defer it.Close()
|
|
for it.Seek(idx.End); it.Valid(); it.Next() {
|
|
item := it.Item()
|
|
var key []byte
|
|
key = item.Key()
|
|
if bytes.Compare(
|
|
key[:len(key)-5], idx.Start,
|
|
) < 0 {
|
|
// didn't find it within the timestamp range
|
|
return
|
|
}
|
|
ser := new(types.Uint40)
|
|
buf := bytes.NewBuffer(key[len(key)-5:])
|
|
if err = ser.UnmarshalRead(buf); chk.E(err) {
|
|
return
|
|
}
|
|
sers = append(sers, ser)
|
|
}
|
|
return
|
|
},
|
|
); chk.E(err) {
|
|
return
|
|
}
|
|
sort.Slice(
|
|
sers, func(i, j int) bool {
|
|
return sers[i].Get() < sers[j].Get()
|
|
},
|
|
)
|
|
return
|
|
}
|