sqlite optimisation: add debug logging

Change-Id: I43fc4d0e8c4de1f3d353a6bc886b4c3761dcef2a
---
M src/libmsc/sms_queue.c
1 file changed, 5 insertions(+), 3 deletions(-)


git pull ssh://gerrit.osmocom.org:29418/osmo-msc refs/changes/22/41222/1

diff --git a/src/libmsc/sms_queue.c b/src/libmsc/sms_queue.c
index 4ef4601..86a0e39 100644
--- a/src/libmsc/sms_queue.c
+++ b/src/libmsc/sms_queue.c
@@ -301,11 +301,13 @@
 	while (wrapped < 2 && (--sanity)) {
 		/* If we wrapped around and passed the first msisdn, we're
 		 * through the entire SMS DB; end it. */
-		if (wrapped && strcmp(last_msisdn, started_with_msisdn) >= 0)
+		if (wrapped && strcmp(last_msisdn, started_with_msisdn) >= 0) {
+			DEBUGP(DLSMS, "SMS queue: Reached end of DB.\n");
 			break;
-
+		}
 		sms = db_sms_get_next_unsent_rr_msisdn(net, last_msisdn, 9);
 		if (!sms) {
+			DEBUGP(DLSMS, "SMS queue: Got no next unsent SMS\n");
 			last_msisdn[0] = '\0';
 			wrapped++;
 			continue;
@@ -324,7 +326,7 @@
 		return sms;
 	}
 
-	DEBUGP(DLSMS, "SMS queue: no SMS to be sent\n");
+	DEBUGP(DLSMS, "SMS queue: no SMS to be sent, tried %d times.\n", sanity+100);
 	return NULL;
 }
 

