Import Subversion-1.10.0vendor/subversion/subversion-1.10.0

1 files changed, 11 insertions, 6 deletions

diff --git a/subversion/include/private/svn_fs_fs_private.h b/subversion/include/private/svn_fs_fs_private.h
index 59aede1c7a62..d2573d447c9d 100644
--- a/subversion/include/private/svn_fs_fs_private.h
+++ b/subversion/include/private/svn_fs_fs_private.h
@@ -53,7 +53,8 @@ typedef struct svn_fs_fs__large_change_info_t
   /* size of the (deltified) representation */
   apr_uint64_t size;
 
-  /* Revision of the representation. SVN_INVALID_REVNUM for unused entries. */
+  /* Revision of the representation. SVN_INVALID_REVNUM for unused entries.
+   */
   svn_revnum_t revision;
 
   /* node path. "" for unused instances */
@@ -151,6 +152,9 @@ typedef struct svn_fs_fs__representation_stats_t
   /* sum of ref_count * expanded_size,
    * i.e. total plaintext content if there was no rep sharing */
   apr_uint64_t expanded_size;
+
+  /* sum of all representation delta chain lengths */
+  apr_uint64_t chain_len;
 } svn_fs_fs__representation_stats_t;
 
 /* Basic statistics we collect over a given set of noderevs.
@@ -267,19 +271,20 @@ svn_fs_fs__get_stats(svn_fs_fs__stats_t **stats,
                      apr_pool_t *result_pool,
                      apr_pool_t *scratch_pool);
 
-/* Node-revision IDs in FSFS consist of 3 of sub-IDs ("parts") that consist
+/* A node-revision ID in FSFS consists of 3 sub-IDs ("parts") that consist
  * of a creation REVISION number and some revision- / transaction-local
  * counter value (NUMBER).  Old-style ID parts use global counter values.
  *
  * The parts are: node_id, copy_id and txn_id for in-txn IDs as well as
- * node_id, copy_id and rev_offset for in-revision IDs.  This struct the
+ * node_id, copy_id and rev_item for in-revision IDs.  This struct is the
  * data structure used for each of those parts.
  */
 typedef struct svn_fs_fs__id_part_t
 {
-  /* SVN_INVALID_REVNUM for txns -> not a txn, COUNTER must be 0.
-     SVN_INVALID_REVNUM for others -> not assigned to a revision, yet.
-     0                  for others -> old-style ID or the root in rev 0. */
+  /* SVN_INVALID_REVNUM for txn_id part -> not a txn, NUMBER must be 0.
+     SVN_INVALID_REVNUM for other parts -> not assigned to a revision, yet.
+     0                  for other parts -> old-style ID or the root in rev 0.
+   */
   svn_revnum_t revision;
 
   /* sub-id value relative to REVISION.  Its interpretation depends on