community
/
dns
3
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

PackBuffer: slight cleanup in docs

This commit is contained in:
Miek Gieben 2014-01-12 10:21:23 +00:00
parent 7f8964662e
commit 00a08d77fc
1 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
msg.go
View File

@ -1293,7 +1293,8 @@ func (dns *Msg) Pack() (msg []byte, err error) {
return dns.PackBuffer(nil)
}
// PackWithBuffer packs a Msg, reusing a given buffer if possible to reduce memory allocations
// PackBuffer packs a Msg, using the given buffer buf. If buf is too small
// a new buffer is allocated.
func (dns *Msg) PackBuffer(buf []byte) (msg []byte, err error) {
var dh Header
var compression map[string]int
@ -1341,8 +1342,8 @@ func (dns *Msg) PackBuffer(buf []byte) (msg []byte, err error) {
dh.Arcount = uint16(len(extra))
msg = buf
if packLen := dns.packLen(); len(msg) <= packLen {
msg = make([]byte, packLen+1)
if packLen := dns.packLen()+1; len(msg) < packLen {
msg = make([]byte, packLen)
}
// Pack it in: header and then the pieces.