From patchwork Wed Feb 17 23:24:35 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lukasz Majewski X-Patchwork-Id: 42096 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 7D839398C008; Wed, 17 Feb 2021 23:24:59 +0000 (GMT) X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from mail-out.m-online.net (mail-out.m-online.net [212.18.0.9]) by sourceware.org (Postfix) with ESMTPS id 6D347384B0C0 for ; Wed, 17 Feb 2021 23:24:56 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 6D347384B0C0 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=denx.de Authentication-Results: sourceware.org; spf=none smtp.mailfrom=lukma@denx.de Received: from frontend01.mail.m-online.net (unknown [192.168.8.182]) by mail-out.m-online.net (Postfix) with ESMTP id 4Dgv7n6MzGz1qsjw; Thu, 18 Feb 2021 00:24:53 +0100 (CET) Received: from localhost (dynscan1.mnet-online.de [192.168.6.70]) by mail.m-online.net (Postfix) with ESMTP id 4Dgv7n5Bmdz1sP6v; Thu, 18 Feb 2021 00:24:53 +0100 (CET) X-Virus-Scanned: amavisd-new at mnet-online.de Received: from mail.mnet-online.de ([192.168.8.182]) by localhost (dynscan1.mail.m-online.net [192.168.6.70]) (amavisd-new, port 10024) with ESMTP id opsuUVZExU9A; Thu, 18 Feb 2021 00:24:51 +0100 (CET) X-Auth-Info: 5QXTP9DtUVW9H+zJ8Z6FO8sN3XUnj38gJjKgWY5e87s= Received: from localhost.localdomain (85-222-111-42.dynamic.chello.pl [85.222.111.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.mnet-online.de (Postfix) with ESMTPSA; Thu, 18 Feb 2021 00:24:51 +0100 (CET) From: Lukasz Majewski To: Joseph Myers , Adhemerval Zanella , Florian Weimer , DJ Delorie Subject: [PATCH v2] tst: Add test for clock_adjtime Date: Thu, 18 Feb 2021 00:24:35 +0100 Message-Id: <20210217232435.24045-1-lukma@denx.de> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-Spam-Status: No, score=-15.2 required=5.0 tests=BAYES_00, GIT_PATCH_0, KAM_DMARC_STATUS, KAM_LAZY_DOMAIN_SECURITY, KAM_SHORT, RCVD_IN_BARRACUDACENTRAL, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: GNU C Library , Florian Weimer , Alistair Francis Errors-To: libc-alpha-bounces@sourceware.org Sender: "Libc-alpha" This code brings test to check if time on target machine is properly adjusted. The time is altered only when cross-test-ssh.sh is executed with --allow-time-setting flag As the delta added to CLOCK_REALTIME is only 1ms the original time is not restored and further tests are executed with this bias. --- Changes for v2: - Use timespec_sub and support_timespec_check_in_range to check if time has been adjusted properly --- time/Makefile | 2 +- time/tst-clock_adjtime.c | 59 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 60 insertions(+), 1 deletion(-) create mode 100644 time/tst-clock_adjtime.c diff --git a/time/Makefile b/time/Makefile index b6f0969f3d..fc6415bf8a 100644 --- a/time/Makefile +++ b/time/Makefile @@ -51,7 +51,7 @@ tests := test_time clocktest tst-posixtz tst-strptime tst_wcsftime \ tst-clock tst-clock2 tst-clock_nanosleep tst-cpuclock1 \ tst-adjtime tst-ctime tst-difftime tst-mktime4 tst-clock-y2038 \ tst-clock2-y2038 tst-cpuclock1-y2038 tst-clock_nanosleep-y2038 \ - tst-clock_settime + tst-clock_settime tst-clock_adjtime include ../Rules diff --git a/time/tst-clock_adjtime.c b/time/tst-clock_adjtime.c new file mode 100644 index 0000000000..f31a4058ec --- /dev/null +++ b/time/tst-clock_adjtime.c @@ -0,0 +1,59 @@ +/* Test for clock_adjtime + Copyright (C) 2021 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include +#include +#include +#include +#include +#include + +static int +do_test (void) +{ + struct timespec tv_then, tv_now; + struct timex delta; + + /* Check if altering target time is allowed. */ + if (getenv (SETTIME_ENV_NAME) == NULL) + FAIL_UNSUPPORTED ("clock_adjtime is executed only when "\ + SETTIME_ENV_NAME" is set\n"); + + tv_then = xclock_now (CLOCK_REALTIME); + + /* Setup time value to adjust - 1 ms. */ + delta.time.tv_sec = 0; + delta.time.tv_usec = 1000; + delta.modes = ADJ_SETOFFSET; + + int ret = clock_adjtime (CLOCK_REALTIME, &delta); + if (ret == -1) + FAIL_EXIT1 ("clock_adjtime failed: %m\n"); + + tv_now = xclock_now (CLOCK_REALTIME); + + /* Check if clock_adjtime adjusted the system time. */ + struct timespec r = timespec_sub (tv_now, tv_then); + TEST_COMPARE (support_timespec_check_in_range + ((struct timespec) { 0, 1000000 }, r, 0.0009, 0.0011), 0); + + + return 0; +} + +#include