Delete SMS from the database once they were sent successfully

Currently the SMS database keeps accumulating entries for each SMS.
These entries are never deleted automatically. With this change, we
start deleting SMS which have successfully been sent to subscriber B.

Change-Id: I3749855fe25d9d4e37ec96b0c2bffbc692b66a78

1 files changed, 16 insertions, 0 deletions

diff --git a/src/libmsc/db.c b/src/libmsc/db.c
index 7007c7af1..e80ef530a 100644
--- a/src/libmsc/db.c
+++ b/src/libmsc/db.c
@@ -970,6 +970,22 @@ int db_sms_delete_by_msisdn(const char *msisdn)
 	return 0;
 }
 
+int db_sms_delete_sent_message_by_id(unsigned long long sms_id)
+{
+	dbi_result result;
+
+	result = dbi_conn_queryf(conn,
+			"DELETE FROM SMS WHERE id = %llu AND sent is NOT NULL",
+			 sms_id);
+	if (!result) {
+		LOGP(DDB, LOGL_ERROR, "Failed to delete SMS %llu.\n", sms_id);
+		return 1;
+	}
+
+	dbi_result_free(result);
+	return 0;
+}
+
 int db_store_counter(struct osmo_counter *ctr)
 {
 	dbi_result result;