service: Create preferred technology list

Look up services from the service list according to their types
using the entries in the 'PreferredTechnologies' string array.
Return the newly allocated service sequence to the caller.

diff --git a/src/service.c b/src/service.c
index 488b2bd..53b56f2 100644 (file)
--- a/src/service.c
+++ b/src/service.c
@@ -3020,6 +3020,45 @@ static connman_bool_t is_ignore(struct connman_service *service)
        return FALSE;
 }
 
+struct preferred_tech_data {
+       GSequence *preferred_list;
+       enum connman_service_type type;
+};
+
+static void preferred_tech_add_by_type(gpointer data, gpointer user_data)
+{
+       struct connman_service *service = data;
+       struct preferred_tech_data *tech_data = user_data;
+
+       if (service->type == tech_data->type) {
+               g_sequence_append(tech_data->preferred_list, service);
+
+               DBG("type %d service %p %s", tech_data->type, service,
+                               service->name);
+       }
+}
+
+static GSequence* preferred_tech_list_get(GSequence *list)
+{
+       unsigned int *tech_array;
+       struct preferred_tech_data tech_data;
+       int i;
+
+       tech_array = connman_setting_get_uint_list("PreferredTechnologies");
+       if (tech_array == NULL)
+               return NULL;
+
+       tech_data.preferred_list = g_sequence_new(NULL);
+
+       for (i = 0; tech_array[i] != 0; i += 1) {
+               tech_data.type = tech_array[i];
+               g_sequence_foreach(service_list, preferred_tech_add_by_type,
+                               &tech_data);
+       }
+
+       return tech_data.preferred_list;
+}
+
 void __connman_service_auto_connect(void)
 {
        struct connman_service *service = NULL;