Line data    Source code

       1             : // Copyright 2024 The LevelDB-Go and Pebble Authors. All rights reserved. Use
       2             : // of this source code is governed by a BSD-style license that can be found in
       3             : // the LICENSE file.
       4             : 
       5             : package batchrepr
       6             : 
       7             : import (
       8             :         "encoding/binary"
       9             : 
      10             :         "github.com/cockroachdb/pebble/internal/base"
      11             : )
      12             : 
      13             : // SetSeqNum mutates the provided batch representation, storing the provided
      14             : // sequence number in its header. The provided byte slice must already be at
      15             : // least HeaderLen bytes long or else SetSeqNum will panic.
      16           2 : func SetSeqNum(repr []byte, seqNum base.SeqNum) {
      17           2 :         binary.LittleEndian.PutUint64(repr[:countOffset], uint64(seqNum))
      18           2 : }
      19             : 
      20             : // SetCount mutates the provided batch representation, storing the provided
      21             : // count in its header. The provided byte slice must already be at least
      22             : // HeaderLen bytes long or else SetCount will panic.
      23           2 : func SetCount(repr []byte, count uint32) {
      24           2 :         binary.LittleEndian.PutUint32(repr[countOffset:HeaderLen], count)
      25           2 : }