// WriteByteOffs generates a kv file with key-value pairs represented as a
// slice of buffer and some int slices of key offsets, key ends, value offsets,
// and value ends.
func WriteByteOffs(fp sophie.FsPath, buffer []byte,
keyOffs, keyEnds, valOffs, valEnds []int) error {
writer, err := fp.Create()
if err != nil {
return err
}
defer writer.Close()
for i, keyOff := range keyOffs {
keyEnd, valOff, valEnd := keyEnds[i], valOffs[i], valEnds[i]
if err := sophie.VInt(keyEnd - keyOff).WriteTo(writer); err != nil {
return err
}
if _, err := writer.Write(buffer[keyOff:keyEnd]); err != nil {
return err
}
if err := sophie.VInt(valEnd - valOff).WriteTo(writer); err != nil {
return err
}
if _, err := writer.Write(buffer[valOff:valEnd]); err != nil {
return err
}
}
return nil
}
