public static void broadcastGetKeepAlives(List <InventoryItemKeepAlive> ka_list, RemoteEndpoint endpoint)
{
int ka_count = ka_list.Count;
int max_ka_per_chunk = CoreConfig.maximumKeepAlivesPerChunk;
for (int i = 0; i < ka_count;)
{
using (MemoryStream mOut = new MemoryStream(max_ka_per_chunk * 570))
{
using (BinaryWriter writer = new BinaryWriter(mOut))
{
int next_ka_count;
if (ka_count - i > max_ka_per_chunk)
{
next_ka_count = max_ka_per_chunk;
}
else
{
next_ka_count = ka_count - i;
}
writer.WriteIxiVarInt(next_ka_count);
for (int j = 0; j < next_ka_count && i < ka_count; j++)
{
InventoryItemKeepAlive ka = ka_list[i];
i++;
if (ka == null)
{
break;
}
long rollback_len = mOut.Length;
writer.WriteIxiVarInt(ka.address.Length);
writer.Write(ka.address);
writer.WriteIxiVarInt(ka.deviceId.Length);
writer.Write(ka.deviceId);
if (mOut.Length > CoreConfig.maxMessageSize)
{
mOut.SetLength(rollback_len);
i--;
break;
}
}
}
endpoint.sendData(ProtocolMessageCode.getKeepAlives, mOut.ToArray(), null);
}
}
}
private bool handleKeepAlive(InventoryItem item, RemoteEndpoint endpoint)
{
if (endpoint == null)
{
return(false);
}
InventoryItemKeepAlive iika = (InventoryItemKeepAlive)item;
Presence p = PresenceList.getPresenceByAddress(iika.address);
if (p == null)
{
using (MemoryStream mw = new MemoryStream())
{
using (BinaryWriter writer = new BinaryWriter(mw))
{
writer.WriteIxiVarInt(iika.address.Length);
writer.Write(iika.address);
endpoint.sendData(ProtocolMessageCode.getPresence2, mw.ToArray(), null);
}
}
return(false);
}
else
{
var pa = p.addresses.Find(x => x.device.SequenceEqual(iika.deviceId));
if (pa == null || iika.lastSeen > pa.lastSeenTime)
{
byte[] address_len_bytes = ((ulong)iika.address.Length).GetIxiVarIntBytes();
byte[] device_len_bytes = ((ulong)iika.deviceId.Length).GetIxiVarIntBytes();
byte[] data = new byte[1 + address_len_bytes.Length + iika.address.Length + device_len_bytes.Length + iika.deviceId.Length];
data[0] = 1;
Array.Copy(address_len_bytes, 0, data, 1, address_len_bytes.Length);
Array.Copy(iika.address, 0, data, 1 + address_len_bytes.Length, iika.address.Length);
Array.Copy(device_len_bytes, 0, data, 1 + address_len_bytes.Length + iika.address.Length, device_len_bytes.Length);
Array.Copy(iika.deviceId, 0, data, 1 + address_len_bytes.Length + iika.address.Length + device_len_bytes.Length, iika.deviceId.Length);
endpoint.sendData(ProtocolMessageCode.getKeepAlives, data, null);
return(true);
}
}
return(false);
}
