htable: fix bug where first entry has hash of 0 or 1.

[ccan] / ccan / tdb2 / test / failtest_helper.c

diff --git a/ccan/tdb2/test/failtest_helper.c b/ccan/tdb2/test/failtest_helper.c
index d24ac4c42b11077693f5126293e095eb2963e4ea..ab79de1978c5d80291426dfa565b7a544b8cf48b 100644 (file)
--- a/ccan/tdb2/test/failtest_helper.c
+++ b/ccan/tdb2/test/failtest_helper.c
@@ -25,19 +25,6 @@ bool failmatch(const struct failtest_call *call,
                            == '/')));
 }
 
-static const struct failtest_call *
-find_repeat(const struct failtest_call *start, const struct failtest_call *end,
-           const struct failtest_call *call)
-{
-       const struct failtest_call *i;
-
-       for (i = start; i < end; i++) {
-               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;
@@ -49,32 +36,31 @@ static bool is_unlock(const struct failtest_call *call)
                && call->u.fcntl.arg.fl.l_type == F_UNLCK;
 }
 
-bool exit_check_log(struct failtest_call *history, unsigned num)
+bool exit_check_log(struct tlist_calls *history)
 {
-       unsigned int i;
+       const struct failtest_call *i;
 
-       for (i = 0; i < num; i++) {
-               if (!history[i].fail)
+       tlist_for_each(history, i, list) {
+               if (!i->fail)
                        continue;
                /* Failing the /dev/urandom open doesn't count: we fall back. */
-               if (failmatch(&history[i], URANDOM_OPEN))
+               if (failmatch(i, URANDOM_OPEN))
                        continue;
 
                /* Similarly with read fail. */
-               if (failmatch(&history[i], URANDOM_READ))
+               if (failmatch(i, URANDOM_READ))
                        continue;
 
                /* Initial allocation of tdb doesn't log. */
-               if (failmatch(&history[i], INITIAL_TDB_MALLOC))
+               if (failmatch(i, INITIAL_TDB_MALLOC))
                        continue;
 
                /* We don't block "failures" on non-blocking locks. */
-               if (is_nonblocking_lock(&history[i]))
+               if (is_nonblocking_lock(i))
                        continue;
 
                if (!tap_log_messages)
-                       diag("We didn't log for %u (%s:%u)",
-                            i, history[i].file, history[i].line);
+                       diag("We didn't log for %s:%u", i->file, i->line);
                return tap_log_messages != 0;
        }
        return true;
@@ -82,9 +68,11 @@ bool exit_check_log(struct failtest_call *history, unsigned num)
 
 /* Some places we soldier on despite errors: only fail them once. */
 enum failtest_result
-block_repeat_failures(struct failtest_call *history, unsigned num)
+block_repeat_failures(struct tlist_calls *history)
 {
-       const struct failtest_call *i, *last = &history[num-1];
+       const struct failtest_call *last;
+
+       last = tlist_tail(history, list);
 
        if (failtest_suppress)
                return FAIL_DONT_FAIL;
@@ -92,31 +80,17 @@ block_repeat_failures(struct failtest_call *history, unsigned num)
        if (failmatch(last, INITIAL_TDB_MALLOC)
            || failmatch(last, URANDOM_OPEN)
            || failmatch(last, URANDOM_READ)) {
-               if (find_repeat(history, last, 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? */
-               for (i = find_repeat(history, last, last);
-                    i;
-                    i = find_repeat(history, i, last)) {
-                       if (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? */
-               for (i = find_repeat(history, last, last);
-                    i;
-                    i = find_repeat(history, i, last)) {
-                       if (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;
 }