private int AddSession(AeronClientSession session)
{
if (session == null)
{
throw new ArgumentNullException(nameof(session));
}
var connectionId = 0;
lock (_connectionsLock)
{
for (var i = 0; i < _clientSessions.Length; i++)
{
if (_clientSessions[i] == null)
{
connectionId = ConnectionIndexToId(i);
_clientSessions[i] = session;
break;
}
}
if (connectionId == 0)
{
var newSessions = new AeronClientSession[_clientSessions.Length * 2];
_clientSessions.CopyTo(newSessions, 0);
connectionId = ConnectionIndexToId(_clientSessions.Length);
newSessions[_clientSessions.Length] = session;
_clientSessions = newSessions;
}
}
return(connectionId);
}
private void RemoveSession(AeronClientSession session)
{
lock (_connectionsLock)
{
for (var i = 0; i < _clientSessions.Length; i++)
{
if (_clientSessions[i] == session)
{
_clientSessions[i] = null;
break;
}
}
}
}
private void SessionDisconnected(AeronClientSession session)
{
RemoveSession(session);
session.OnDisconnected.Invoke();
session.Dispose();
}
public int Connect(string serverHost,
int serverPort,
Action onConnectedDelegate,
Action onDisconnectedDelegate,
AeronClientMessageReceivedHandler onMessageReceived,
int connectionResponseTimeoutMs)
{
if (serverHost == null)
{
throw new ArgumentNullException(nameof(serverHost));
}
if (_isTerminatedUnexpectedly)
{
return(-1);
}
string serverHostIp;
if (serverHost.Equals("localhost", StringComparison.OrdinalIgnoreCase) || serverHost.Equals("127.0.0.1", StringComparison.OrdinalIgnoreCase))
{
// TODO IPC channel for local communication
serverHostIp = "127.0.0.1";
}
else
{
var ipv4 =
Dns.GetHostEntry(serverHost).AddressList
.FirstOrDefault(x => x.AddressFamily == AddressFamily.InterNetwork)
?? throw new ArgumentException($"Cannot resolve serverHost ip for {serverHost}");
serverHostIp = ipv4.ToString();
}
var serverChannel = Utils.RemoteChannel(serverHostIp, serverPort);
var publication = _client.AddExclusivePublication(serverChannel, AeronServer.ServerStreamId);
var localIp = UdpUtils.GetLocalIPAddress(serverHostIp, serverPort);
var streamId = MachineCounters.Instance.GetNewClientStreamId();
GetChannelAndSubscription(localIp, streamId, out var clientChannel, out var subscription);
var session = new AeronClientSession(this,
serverChannel,
publication,
subscription,
onConnectedDelegate,
onDisconnectedDelegate,
onMessageReceived);
var connectionId = AddSession(session);
_log.Info($"Connecting: {session}");
var handshakeRequest = new AeronHandshakeRequest
{
Channel = clientChannel,
StreamId = streamId
};
if (!session.SendHandshake(handshakeRequest, connectionResponseTimeoutMs))
{
RemoveSession(session);
session.Dispose();
return(-1);
}
return(connectionId);
}
