RGW/multisite: bucket_list_result object provides a method to reset its entries

Add a new method `reset_entries()` to the `bucket_list_result` struct
that clears the list of entries and resets the truncated flag.

This would be used to enhance the re-use cases to avoid accessing stale
entries or truncated flag.

Signed-off-by: Oguzhan Ozmen <oozmen@bloomberg.net>
(cherry picked from commit 911d0cb2bce2a613657a6aebcb9724cabc23d6eb)
resolves rhbz#2412220
(cherry picked from commit ac270428b90cc411074467db4c5f0dfd2e9e1e59)

diff --git a/src/rgw/driver/rados/rgw_data_sync.cc b/src/rgw/driver/rados/rgw_data_sync.cc
index d090891d7333e7facf8c80dee4bb17da65305111..56765a7439aa9a8a0b4312be7b8e670b1fa46cd8 100644 (file)
--- a/src/rgw/driver/rados/rgw_data_sync.cc
+++ b/src/rgw/driver/rados/rgw_data_sync.cc
@@ -4033,6 +4033,11 @@ struct bucket_list_result {
 
   bucket_list_result() : max_keys(0), is_truncated(false) {}
 
+  void reset_entries() {
+    entries.clear();
+    is_truncated = false;
+  }
+
   void decode_json(JSONObj *obj) {
     JSONDecoder::decode_json("Name", name, obj);
     JSONDecoder::decode_json("Prefix", prefix, obj);