tdb2: more stats

[ccan] / ccan / tdb2 / free.c

diff --git a/ccan/tdb2/free.c b/ccan/tdb2/free.c
index be9b18455342a76ee316f98eff4363ade141849e..9c2bcac70e5366ad44e3d7240091abbb923a85f6 100644 (file)
--- a/ccan/tdb2/free.c
+++ b/ccan/tdb2/free.c
@@ -370,8 +370,10 @@ static tdb_len_t coalesce(struct tdb_context *tdb,
                }
 
                /* Did we just mess up a record you were hoping to use? */
-               if (end == *protect)
+               if (end == *protect) {
+                       tdb->stats.alloc_coalesce_iterate_clash++;
                        *protect = TDB_ERR_NOEXIST;
+               }
 
                ecode = remove_from_list(tdb, nb_off, end, &rec);
                check_list(tdb, nb_off);
@@ -390,8 +392,10 @@ static tdb_len_t coalesce(struct tdb_context *tdb,
                return 0;
 
        /* Before we expand, check this isn't one you wanted protected? */
-       if (off == *protect)
+       if (off == *protect) {
                *protect = TDB_ERR_EXISTS;
+               tdb->stats.alloc_coalesce_iterate_clash++;
+       }
 
        /* OK, expand initial record */
        ecode = tdb_read_convert(tdb, off, &rec, sizeof(rec));
@@ -416,6 +420,7 @@ static tdb_len_t coalesce(struct tdb_context *tdb,
        ecode = add_free_record(tdb, off, end - off, TDB_LOCK_NOWAIT, false);
        if (ecode != TDB_SUCCESS) {
                /* Need to drop lock.  Can't rely on anything stable. */
+               tdb->stats.alloc_coalesce_lockfail++;
                *protect = TDB_ERR_CORRUPT;
 
                /* We have to drop this to avoid deadlocks, so make sure record