tdb2: suppress failtest more than once on mmap.
[ccan] / ccan / tdb2 / test / failtest_helper.c
index f3ef09a6c3e84b33d0ca1807967505771835f17c..3172e3ad6e150478812c6b9e33434929ee147167 100644 (file)
@@ -25,21 +25,6 @@ bool failmatch(const struct failtest_call *call,
                            == '/')));
 }
 
-static const struct failtest_call *
-find_repeat(const struct tlist_calls *history,
-           const struct failtest_call *call)
-{
-       const struct failtest_call *i;
-
-       tlist_for_each(history, i, list) {
-               if (i != call)
-                       continue;
-               if (failmatch(i, call->file, call->line, call->type))
-                       return i;
-       }
-       return NULL;
-}
-
 static bool is_nonblocking_lock(const struct failtest_call *call)
 {
        return call->type == FAILTEST_FCNTL && call->u.fcntl.cmd == F_SETLK;
@@ -85,7 +70,7 @@ bool exit_check_log(struct tlist_calls *history)
 enum failtest_result
 block_repeat_failures(struct tlist_calls *history)
 {
-       const struct failtest_call *i, *last;
+       const struct failtest_call *last;
 
        last = tlist_tail(history, struct failtest_call, list);
 
@@ -95,25 +80,17 @@ block_repeat_failures(struct tlist_calls *history)
        if (failmatch(last, INITIAL_TDB_MALLOC)
            || failmatch(last, URANDOM_OPEN)
            || failmatch(last, URANDOM_READ)) {
-               if (find_repeat(history, last))
-                       return FAIL_DONT_FAIL;
                return FAIL_PROBE;
        }
 
-       /* Unlock or non-blocking lock is fail-once. */
-       if (is_unlock(last)) {
-               /* Find a previous unlock at this point? */
-               i = find_repeat(history, last);
-               if (i && is_unlock(i))
-                       return FAIL_DONT_FAIL;
+       /* We handle mmap failing, by falling back to read/write, so
+        * don't try all possible paths. */
+       if (last->type == FAILTEST_MMAP)
                return FAIL_PROBE;
-       } else if (is_nonblocking_lock(last)) {
-               /* Find a previous non-blocking lock at this point? */
-               i = find_repeat(history, last);
-               if (i && is_nonblocking_lock(i))
-                       return FAIL_DONT_FAIL;
+
+       /* Unlock or non-blocking lock is fail-once. */
+       if (is_unlock(last) || is_nonblocking_lock(last))
                return FAIL_PROBE;
-       }
 
        return FAIL_OK;
 }