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package needle
import (
"bytes"
. "github.com/seaweedfs/seaweedfs/weed/storage/types"
"github.com/seaweedfs/seaweedfs/weed/util"
)
func writeNeedleV1(n *Needle, offset uint64, bytesBuffer *bytes.Buffer) (size Size, actualSize int64, err error) {
bytesBuffer.Reset()
header := make([]byte, NeedleHeaderSize)
CookieToBytes(header[0:CookieSize], n.Cookie)
NeedleIdToBytes(header[CookieSize:CookieSize+NeedleIdSize], n.Id)
n.Size = Size(len(n.Data))
SizeToBytes(header[CookieSize+NeedleIdSize:CookieSize+NeedleIdSize+SizeSize], n.Size)
size = n.Size
actualSize = NeedleHeaderSize + int64(n.Size)
bytesBuffer.Write(header)
bytesBuffer.Write(n.Data)
padding := PaddingLength(n.Size, Version1)
util.Uint32toBytes(header[0:NeedleChecksumSize], uint32(n.Checksum))
bytesBuffer.Write(header[0 : NeedleChecksumSize+padding])
return size, actualSize, nil
}
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