cache.clear: allow callback to modify return value

This is handy mainly for tests but it costs nothing so why not to do it.

diff --git a/daemon/lua/sandbox.lua b/daemon/lua/sandbox.lua
index 732d1d50da2872dbc4262aa63813a97d89087d84..9912eee1147bffb88446d54028378930e7efe0a2 100644 (file)
--- a/daemon/lua/sandbox.lua
+++ b/daemon/lua/sandbox.lua
@@ -216,14 +216,15 @@ cache.clear = function (name, exact_name, rr_type, chunk_size, callback)
        if callback == nil then callback =
                function (cberrors, cbname, cbexact_name, cbrr_type, cbchunk_size, cbself)
                        if errors.count < 0 then error(ffi.string(ffi.C.knot_strerror(errors.count))) end
-                       if (errors.count ~= cbchunk_size) then return end
-                       event.after(1, function ()
-                                       cache.clear(cbname, cbexact_name, cbrr_type, cbchunk_size, cbself)
-                               end)
+                       if (errors.count == cbchunk_size) then
+                               event.after(1, function ()
+                                               cache.clear(cbname, cbexact_name, cbrr_type, cbchunk_size, cbself)
+                                       end)
+                       end
+                       return cberrors
                end
        end
-       callback(errors, name, exact_name, rr_type, chunk_size, callback)
-       return errors
+       return callback(errors, name, exact_name, rr_type, chunk_size, callback)
 end
 -- Syntactic sugar for cache
 -- `cache[x] -> cache.get(x)`