api,modem: new 'MaxActiveMultiplexedBearers' property

In addition to the amount of bearers a user may connect without
multiplexing enabled (the default until now), we now also expose the
maximum number of bearers a user may connect after enabling
multiplexing over one single network interface (if supported).

The method responsible for creating the MMBearerList is now also
subclassable, so that implementations supporting multiplexing can
provide their own version with their own thresholds.

1 files changed, 18 insertions, 0 deletions

diff --git a/src/mm-broadband-modem.c b/src/mm-broadband-modem.c
index 66320c63..bcd56faa 100644
--- a/src/mm-broadband-modem.c
+++ b/src/mm-broadband-modem.c
@@ -418,6 +418,23 @@ modem_create_bearer (MMIfaceModem *self,
 }
 
 /*****************************************************************************/
+/* Create Bearer List (Modem interface) */
+
+static MMBearerList *
+modem_create_bearer_list (MMIfaceModem *self)
+{
+    guint n;
+
+    /* The maximum number of available/connected modems is guessed from
+     * the size of the data ports list. */
+    n = g_list_length (mm_base_modem_peek_data_ports (MM_BASE_MODEM (self)));
+    mm_obj_dbg (self, "allowed up to %u active bearers", n);
+
+    /* by default, no multiplexing support */
+    return mm_bearer_list_new (n, 0);
+}
+
+/*****************************************************************************/
 /* Create SIM (Modem interface) */
 
 static MMBaseSim *
@@ -12425,6 +12442,7 @@ iface_modem_init (MMIfaceModem *iface)
     iface->load_power_state_finish = modem_load_power_state_finish;
     iface->load_supported_ip_families = modem_load_supported_ip_families;
     iface->load_supported_ip_families_finish = modem_load_supported_ip_families_finish;
+    iface->create_bearer_list = modem_create_bearer_list;
 
     /* Enabling steps */
     iface->modem_power_up = modem_power_up;