private void TryJoinToSession(ServerSideMsgPipe pipe, string nickName)
{
var joiningSession = _sessions.FirstOrDefault(s => s.NeedClient);
switch (joiningSession)
{
case null when _sessions.Count >= _maxSessions:
ClosePipeWithError(pipe, ServerErrorId.ServerIsBusy);
_log?.Error($"Failed to add client {pipe.Id} into session: server is busy");
return;
case null:
var sendBufferSize = _sessionPlayers * 512;
joiningSession = new ServerSession(_random, _lastSessionId++, _sessionPlayers, _tps, sendBufferSize, _log);
_sessions.Add(joiningSession);
break;
case {} session when session.HasClientWithName(nickName):
ClosePipeWithError(pipe, ServerErrorId.NickIsBusy);
_log?.Error($"Failed to add client {pipe.Id} into session: nickname is busy");
return;
}
try {
pipe.SendMessageUsingBuffer(new ServerMsgJoined(), _sendBuffer);
joiningSession.AddClient(pipe, nickName);
}
catch (Exception e) {
ClosePipeWithError(pipe, ServerErrorId.InternalError);
_log?.Error($"Failed to add client {pipe.Id} into session: internal error");
_log?.Exception(e);
}
}
private void ClosePipeWithError(ServerSideMsgPipe pipe, ServerErrorId error)
{
try {
pipe.SendMessageUsingBuffer(new ServerMsgError(error), _sendBuffer);
}
finally {
pipe.Close();
}
}
public void ClientShouldReceiveAllServerMessages()
{
var msgOrder = new[] {
ServerMsgId.KeepAlive, ServerMsgId.Error, ServerMsgId.Joined,
ServerMsgId.Start, ServerMsgId.Inputs, ServerMsgId.Finish
};
_serverSidePipe.SendMessageUsingBuffer(new ServerMsgKeepAlive(), _sendBuffer);
_serverSidePipe.SendMessageUsingBuffer(new ServerMsgError(ServerErrorId.InternalError), _sendBuffer);
_serverSidePipe.SendMessageUsingBuffer(new ServerMsgJoined(), _sendBuffer);
_clientSidePipe.ReceiveMessages();
_serverSidePipe.SendMessageUsingBuffer(new ServerMsgStart(0, new [] { "foo", "bar" }, 1, 25), _sendBuffer);
_serverSidePipe.SendMessageUsingBuffer(new ServerMsgInput(3, 2, 1), _sendBuffer);
_serverSidePipe.SendMessageUsingBuffer(new ServerMsgFinish(new [] { 0u, 1u }, new [] { 2, 3 }), _sendBuffer);
_clientSidePipe.ReceiveMessages();
Assert.True(_clientSidePipe.ReceiveOrder.Count == msgOrder.Length);
foreach (var msgId in msgOrder)
{
Assert.True(msgId == _clientSidePipe.ReceiveOrder.Dequeue());
switch (msgId)
{
case ServerMsgId.KeepAlive:
case ServerMsgId.Joined:
break;
case ServerMsgId.Error:
_clientSidePipe.ErrorMessages.Dequeue();
break;
case ServerMsgId.Start:
_clientSidePipe.StartMessages.Dequeue();
break;
case ServerMsgId.Inputs:
_clientSidePipe.InputMessages.Dequeue();
break;
case ServerMsgId.Finish:
_clientSidePipe.FinishMessages.Dequeue();
break;
default:
throw new ArgumentOutOfRangeException();
}
}
}