public void SetHeaderData(WvBytes data)
{
var it = new WvDbusIter((Dbus.Endian)data[0], "yyyyuua{yv}", data)
.GetEnumerator();
endian = (Dbus.Endian)(byte)it.pop();
type = (Dbus.MType)(byte)it.pop();
flags = (Dbus.MFlag)(byte)it.pop();
it.pop(); // version
it.pop(); // length
serial = it.pop();
foreach (var _f in it.pop())
{
var f = _f.GetEnumerator();
Dbus.Field c = (Dbus.Field)(byte)f.pop();
var v = f.pop();
switch (c)
{
case Dbus.Field.Sender:
sender = v;
break;
case Dbus.Field.Destination:
dest = v;
break;
case Dbus.Field.ReplySerial:
rserial = v;
break;
case Dbus.Field.Signature:
signature = v;
break;
case Dbus.Field.Path:
path = v;
break;
case Dbus.Field.Interface:
ifc = v;
break;
case Dbus.Field.Member:
method = v;
break;
case Dbus.Field.ErrorName:
err = v;
break;
default:
break; // unknown field code, ignore
}
}
}
// Tries to guess how many bytes you'll need into inbuf before you can
// read an entire message. The buffer needs to have at least 16
// bytes before you can start.
static void _bytes_needed(WvBytes b, out int hlen, out int blen)
{
wv.assert(b.len >= 16);
// the real header signature is: yyyyuua{yv}
// However, we only care about the first 16 bytes, and we know
// that the a{yv} starts with an unsigned int that's the number
// of bytes in the array, which is what we *really* want to know.
// So we lie about the signature here.
var it = new WvDbusIter((Dbus.Endian)b[0], "yyyyuuu", b.sub(0,16))
.GetEnumerator();
it.pop();
it.pop();
it.pop();
byte version = it.pop();
if (version < Dbus.Protocol.MinVersion || version > Dbus.Protocol.MaxVersion)
throw new NotSupportedException
("Dbus.Protocol version '"
+ version.ToString() + "' is not supported");
uint _blen = it.pop(); // body length
it.pop(); // serial
uint _hlen = it.pop(); // remaining header length
if (_blen > Int32.MaxValue || _hlen > Int32.MaxValue)
throw new NotImplementedException
("Long messages are not yet supported");
hlen = 16 + Dbus.Protocol.Padded((int)_hlen, 8);
blen = (int)_blen;
}