session: Only one session can set EmergencyCall

Also propate EmergencyCall setting to all sessions.

diff --git a/src/session.c b/src/session.c
index 92e8b4c..5c512b6 100644 (file)
--- a/src/session.c
+++ b/src/session.c
@@ -31,6 +31,7 @@
 static DBusConnection *connection;
 static GHashTable *session_hash;
 static connman_bool_t sessionmode;
+static struct connman_session *ecall_session;
 
 enum connman_session_roaming_policy {
        CONNMAN_SESSION_ROAMING_POLICY_UNKNOWN          = 0,
@@ -828,6 +829,52 @@ static void update_allowed_bearers(struct connman_session *session)
        g_sequence_foreach(session->service_list, print_name, NULL);
 }
 
+static void update_ecall(struct connman_session *session)
+{
+       struct session_info *info = &session->info;
+       struct session_info *info_last = &session->info_last;
+       GHashTableIter iter;
+       gpointer key, value;
+       struct connman_session *session_iter;
+
+       DBG("ecall_session %p ecall %d -> %d", ecall_session,
+               info_last->ecall, info->ecall);
+
+       if (ecall_session == NULL) {
+               if (!(info_last->ecall == FALSE && info->ecall == TRUE))
+                       goto err;
+
+               ecall_session = session;
+       } else if (ecall_session == session) {
+               if (!(info_last->ecall == TRUE && info->ecall == FALSE))
+                       goto err;
+
+               ecall_session = NULL;
+       } else {
+               goto err;
+       }
+
+       g_hash_table_iter_init(&iter, session_hash);
+
+       while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
+               session_iter = value;
+
+               if (session_iter == session)
+                       continue;
+
+               session_iter->info.ecall = info->ecall;
+
+               g_timeout_add_seconds(0, session_cb, session_iter);
+       }
+
+       session->info_dirty = TRUE;
+       return;
+
+err:
+       /* not a valid transition */
+       info->ecall = info_last->ecall;
+}
+
 static DBusMessage *change_session(DBusConnection *conn,
                                        DBusMessage *msg, void *user_data)
 {
@@ -894,8 +941,7 @@ static DBusMessage *change_session(DBusConnection *conn,
                        dbus_message_iter_get_basic(&value,
                                        &info->ecall);
 
-                       if (info_last->ecall != info->ecall)
-                               session->info_dirty = TRUE;
+                       update_ecall(session);
                } else {
                        goto err;
                }