number of guests limited

src/net/common/sessionmanager.cpp

@@ -39,6 +39,7 @@ using namespace std;
 
 SessionManager::SessionManager()
 {
+  guestUsers = 0;
 }
 
 SessionManager::~SessionManager()
@@ -433,3 +434,17 @@ SessionManager::SendToAllButOneSessions(SenderHelper &sender, boost::shared_ptr<
 	}
 }
 
+void
+SessionManager::IncrementGuest() { 
+	guestUsers++; 
+}
+
+void
+SessionManager::DecrementGuest() { 
+	guestUsers--; 
+}
+
+int
+SessionManager::GetGuestUsers() const { 
+	return guestUsers; 
+}