move alert queue size limit into session_settings. make some alerts non-discardable (don't throw them out, even when the queue is full). Make session pause also pause all checking files. optimize rejecting incoming connections when the session is paused

bindings/python/src/session.cpp

@@ -513,9 +513,9 @@ void bind_session()
 #ifndef TORRENT_NO_DEPRECATE
         .def("load_state", load_state1)
         .def("set_severity_level", allow_threads(&session::set_severity_level))
+        .def("set_alert_queue_size_limit", allow_threads(&session::set_alert_queue_size_limit))
 #endif
         .def("set_alert_mask", allow_threads(&session::set_alert_mask))
-        .def("set_alert_queue_size_limit", allow_threads(&session::set_alert_queue_size_limit))
         .def("pop_alert", allow_threads(&session::pop_alert))
         .def("wait_for_alert", &wait_for_alert, return_internal_reference<>())
         .def("add_extension", &add_extension)

bindings/python/src/session_settings.cpp

@@ -138,6 +138,8 @@ void bind_session_settings()
         .def_readwrite("announce_double_nat", &session_settings::announce_double_nat)
         .def_readwrite("torrent_connect_boost", &session_settings::torrent_connect_boost)
         .def_readwrite("seeding_outgoing_connections", &session_settings::seeding_outgoing_connections)
+        .def_readwrite("no_connect_privileged_ports", &session_settings::no_connect_privileged_ports)
+        .def_readwrite("alert_queue_size", &session_settings::alert_queue_size)
     ;
 
     enum_<proxy_settings::proxy_type>("proxy_type")