private int _AddClient(BaseClient h)
{
lock (_chs_sync)
for (int i = 0; i < _chs.Length; i++) // Even with 100,000 clients, this loop won't be an issue.
if (_chs[i] == null)
{
h.Disconnected += h_Disconnected;
h.ConnectionFailed += h_ConnectionFailed;
// I gotta subscribe to the event here (unfortunately, inside a lock) so it won't get added twice. This is the only code block guaranteed to run just once when this function is called.
if (_peering)
for (int j = 0; j < _chs.Length; j++)
if (_chs[j] != null)
_chs[j].GivePeer(i);
_chs[i] = h;
return h._id = i;
// I love assignment as expression!
}
// If a suitable position wasn't found...
_DoubleClientContainer();
return _AddClient(h);
}
private void _handleHandshakeRequest(BaseClient sender, RequestReceivedEventArgs e)
{
if (handshakeStep == 0)
using (var br = new BinaryReader(e.Response.RequestPayloadStream, Encoding.UTF8))
{
int vma = br.ReadInt32();
int vmi = br.ReadInt32();
if (ProtocolVersion.Major != vma || ProtocolVersion.Minor != vmi)
_CheckIfStopped(new NotSupportedException("vProto Protocol Version mismatch."));
else
{
handshakeStep = 1;
using (var str = new MemoryStream())
using (BinaryWriter bw = new BinaryWriter(str, Encoding.UTF8))
{
bw.Write(ProtocolVersion.Major);
bw.Write(ProtocolVersion.Minor);
bw.Flush();
e.Response.SetPayload(str, SeekOrigin.Begin).Send();
}
}
}
else if (handshakeStep == 1)
using (var br = new BinaryReader(e.Response.RequestPayloadStream, Encoding.UTF8))
{
this._id = br.ReadInt32();
int peers_cnt = br.ReadInt32();
int[] peers = null;
if (peers_cnt != -1)
{
peers = new int[peers_cnt];
for (int i = peers_cnt - 1; i >= 0; i--)
peers[i] = br.ReadInt32();
}
lock (_peers_lock)
{
_peers = new List<int>(peers);
if (peers != null)
for (int i = 0; i < _peers_queued_temp.Count; i++)
if (!_peers.Contains(_peers_queued_temp[i]))
_peers.Add(_peers_queued_temp[i]);
_peers_queued_temp = null;
}
_FinishHandhake();
e.Response.Send();
}
}
private void _DoubleClientContainer()
{
lock (_chs_sync)
{
BaseClient[] n = new BaseClient[_chs.Length * 2];
_chs.CopyTo(n, 0);
// Indices need to be preserved...
_chs = n;
}
}
private void _RemoveClient(BaseClient h)
{
lock (_chs_sync)
if (h._id > -1 && h._id < _chs.Length)
{
_chs[h._id] = null;
if (_peering)
for (int j = 0; j < _chs.Length; j++)
if (_chs[j] != null)
_chs[j].TakePeer(h._id);
}
// else what the heck is going on?
}
// Only internally...
internal Request(BaseClient cl, short id)
{
client = cl;
this.id = id;
Disposed = Sent = Aborted = TimedOut = Failed = Responded = false;
}
void h_ConnectionFailed(BaseClient sender, ClientConnectionFailedEventArgs e)
{
_RemoveClient(sender);
OnClientConnectionFailed(new ServerClientConnectionFailedEventArgs(e.Exception));
}
/* Events from clients...
*/
void h_Disconnected(BaseClient sender, ClientDisconnectedEventArgs e)
{
_RemoveClient(sender);
OnClientDisconnected(new ServerClientDisconnectedEventArgs(sender, e.Exception));
}
/// <summary>
/// Integrates a new client into the server and raises appropriate events.
/// </summary>
/// <param name="client">The client to integrate.</param>
protected void ClientReceived(BaseClient client)
{
_AddClient(client);
OnClientConnected(new ServerClientConnectedEventArgs(client));
}
// Only internally...
internal Response(BaseClient cl, short id, short type, byte[] reqpayload, TimeSpan timeout, DateTime receivalTime)
{
client = cl;
this.id = id;
this.Type = type;
Timeout = timeout;
TimeRquested = receivalTime;
TimeDue = receivalTime + timeout;
reqarr = reqpayload;
reqstr = new MemoryStream(reqpayload);
Disposed = Sent = Aborted = TimedOut = Failed = false;
}
