Implement a better sending of pending SMS
The previous implementation had some shortcomings:
- If the MIN ID given was not the exact id of the first unsent SMS,
it would try to submit the same sms several time until id++ finally
made id go to the next one.
- If a subscriber had several SMS pending it would try to submit
them individually (only to get rejected because a paging for that
subscriber was already in progress)
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
diff --git a/openbsc/src/db.c b/openbsc/src/db.c
index d853865..707d877 100644
--- a/openbsc/src/db.c
+++ b/openbsc/src/db.c
@@ -788,6 +788,33 @@
return sms;
}
+struct gsm_sms *db_sms_get_unsent_by_subscr(struct gsm_network *net, int min_subscr_id)
+{
+ dbi_result result;
+ struct gsm_sms *sms;
+
+ result = dbi_conn_queryf(conn,
+ "SELECT * FROM SMS,Subscriber "
+ "WHERE sms.receiver_id >= %llu AND sms.sent is NULL "
+ "AND sms.receiver_id = subscriber.id "
+ "AND subscriber.lac > 0 "
+ "ORDER BY sms.receiver_id, id LIMIT 1",
+ min_subscr_id);
+ if (!result)
+ return NULL;
+
+ if (!dbi_result_next_row(result)) {
+ dbi_result_free(result);
+ return NULL;
+ }
+
+ sms = sms_from_result(net, result);
+
+ dbi_result_free(result);
+
+ return sms;
+}
+
/* retrieve the next unsent SMS for a given subscriber */
struct gsm_sms *db_sms_get_unsent_for_subscr(struct gsm_subscriber *subscr)
{