luaobject: change function push method in signal emit

Signed-off-by: Julien Danjou <julien@danjou.info>

common/luaobject.c

@@ -227,14 +227,28 @@ luaA_object_emit_signal(lua_State *L, int oud,
     signal_t *sigfound = signal_array_getbyid(&obj->signals,
                                               a_strhash((const unsigned char *) name));
     if(sigfound)
-        foreach(ref, sigfound->sigfuncs)
+    {
+        int nbfunc = sigfound->sigfuncs.len;
+        luaL_checkstack(L, lua_gettop(L) + nbfunc + nargs + 2, "too much signal");
+        /* Push all functions and then execute, because this list can change
+         * while executing funcs. */
+        foreach(func, sigfound->sigfuncs)
+            luaA_object_push_item(L, oud_abs, (void *) *func);
+
+        for(int i = 0; i < nbfunc; i++)
         {
+            /* push object */
             lua_pushvalue(L, oud_abs);
-            for(int i = 0; i < nargs; i++)
+            /* push all args */
-                lua_pushvalue(L, - nargs - 1);
+            for(int j = 0; j < nargs; j++)
-            luaA_object_push_item(L, oud_abs, (void *) *ref);
+                lua_pushvalue(L, - nargs - nbfunc - 1 + i);
+            /* push first function */
+            lua_pushvalue(L, - nargs - nbfunc - 1 + i);
+            /* remove this first function */
+            lua_remove(L, - nargs - nbfunc - 2 + i);
             luaA_dofunction(L, nargs + 1, 0);
         }
+    }
     lua_pop(L, nargs);
 }