store: Provide more verbose messages on errors during scanning.

diff --git a/src/core/store.c b/src/core/store.c
index b909d001dc7a560d77c66168b30e362221bda719..6befce7e5acd8933a3f054336974f8bf32229733 100644 (file)
--- a/src/core/store.c
+++ b/src/core/store.c
@@ -1093,8 +1093,10 @@ sdb_store_scan(int type, sdb_store_matcher_t *m, sdb_store_matcher_t *filter,
        if (! cb)
                return -1;
 
-       if ((type != SDB_HOST) && (type != SDB_SERVICE) && (type != SDB_METRIC))
+       if ((type != SDB_HOST) && (type != SDB_SERVICE) && (type != SDB_METRIC)) {
+               sdb_log(SDB_LOG_ERR, "store: Cannot scan objects of type %d", type);
                return -1;
+       }
 
        pthread_rwlock_rdlock(&host_lock);
 
@@ -1126,6 +1128,8 @@ sdb_store_scan(int type, sdb_store_matcher_t *m, sdb_store_matcher_t *filter,
 
                                if (sdb_store_matcher_matches(m, obj, filter)) {
                                        if (cb(obj, filter, user_data)) {
+                                               sdb_log(SDB_LOG_ERR, "store: Callback returned "
+                                                               "an error while scanning");
                                                status = -1;
                                                break;
                                        }
@@ -1133,8 +1137,11 @@ sdb_store_scan(int type, sdb_store_matcher_t *m, sdb_store_matcher_t *filter,
                        }
                }
                else if (sdb_store_matcher_matches(m, host, filter)) {
-                       if (cb(host, filter, user_data))
+                       if (cb(host, filter, user_data)) {
+                               sdb_log(SDB_LOG_ERR, "store: Callback returned "
+                                               "an error while scanning");
                                status = -1;
+                       }
                }
 
                sdb_avltree_iter_destroy(iter);