bool SessionImpl::Join()
{
// Cannot join a session while we're joined or currently attempting to join.
if (MachineSessionState::DISCONNECTED == m_curState)
{
LogInfo("Attempting to join session %s at %s:%i", m_name->GetString().c_str(), m_address.c_str(), m_port);
// Verify that no other sessions are already in a joining state.
int sessionCount = m_sessionMgr->GetSessionCount();
for (int i = 0; i < sessionCount; i++)
{
SessionPtr curSession = m_sessionMgr->GetSession(i);
// Fail if any sessions are in a pending state.
// TODO: Instead, we should just auto leave all non-disconnected sessions.
if (curSession->GetMachineSessionState() == MachineSessionState::JOINING)
{
LogError("SessionImpl::Join called while another session %s was in a joining state", curSession->GetName()->GetString().c_str());
curSession->Leave();
XTASSERT(curSession->GetMachineSessionState() == MachineSessionState::DISCONNECTED);
return false;
}
}
SessionPtr oldSession = m_sessionMgr->GetCurrentSession();
if (oldSession)
{
LogInfo("Automatically leaving existing session %s", oldSession->GetName()->GetString().c_str());
oldSession->Leave();
XTASSERT(oldSession->GetMachineSessionState() == MachineSessionState::DISCONNECTED);
XTASSERT(m_sessionMgr->GetCurrentSession() == NULL);
}
// Set out state to joining
SetState(MachineSessionState::JOINING);
// Set this as the current session for this machine
m_sessionMgr->SetCurrentSession(this);
// Attempting to join a new session; notify the listeners
m_listenerList->NotifyListeners(&SessionListener::OnJoiningSession);
// Attempt to open a connection to this session
XSocketPtr socket = m_context->GetXSocketManager()->OpenConnection(m_address, m_port);
if (XTVERIFY(socket))
{
// Initiate the handshake
HandshakeCallback callback = CreateCallback3(this, &SessionImpl::OnHandshakeComplete);
m_handshake = new NetworkHandshake(socket, new SessionHandshakeLogic(false), callback);
return true;
}
else
{
LogError("Join failed we failed to create a socket to the session at %s:%u.", m_address.c_str(), m_port);
}
}
else
{
LogError("Join failed because the current state is %s instead of DISCONNECTED", (m_curState == MachineSessionState::JOINING) ? "JOINING" : "JOINED");
}
return false;
}
