mirror of
https://github.com/syncthing/syncthing.git
synced 2024-11-17 02:48:57 -07:00
35 lines
628 B
Go
35 lines
628 B
Go
|
package protocol
|
||
|
|
|
||
|
|
import "github.com/calmh/syncthing/xdr"
|
||
|
|
|
||
|
|
type header struct {
|
||
|
|
version int
|
||
|
|
msgID int
|
||
|
|
msgType int
|
||
|
|
}
|
||
|
|
|
||
|
|
func (h header) encodeXDR(xw *xdr.Writer) (int, error) {
|
||
|
|
u := encodeHeader(h)
|
||
|
|
return xw.WriteUint32(u)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (h *header) decodeXDR(xr *xdr.Reader) error {
|
||
|
|
u := xr.ReadUint32()
|
||
|
|
*h = decodeHeader(u)
|
||
|
|
return xr.Error()
|
||
|
|
}
|
||
|
|
|
||
|
|
func encodeHeader(h header) uint32 {
|
||
|
|
return uint32(h.version&0xf)<<28 +
|
||
|
|
uint32(h.msgID&0xfff)<<16 +
|
||
|
|
uint32(h.msgType&0xff)<<8
|
||
|
|
}
|
||
|
|
|
||
|
|
func decodeHeader(u uint32) header {
|
||
|
|
return header{
|
||
|
|
version: int(u>>28) & 0xf,
|
||
|
|
msgID: int(u>>16) & 0xfff,
|
||
|
|
msgType: int(u>>8) & 0xff,
|
||
|
|
}
|
||
|
|
}
|