From patchwork Mon Mar 15 11:42:39 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lukasz Majewski X-Patchwork-Id: 42543 X-Patchwork-Delegate: azanella@linux.vnet.ibm.com 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 EAA7D3858D33; Mon, 15 Mar 2021 11:42:59 +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 [IPv6:2001:a60:0:28:0:1:25:1]) by sourceware.org (Postfix) with ESMTPS id 9D0313858D29 for ; Mon, 15 Mar 2021 11:42:56 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 9D0313858D29 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 4DzZKp0LFsz1rynf; Mon, 15 Mar 2021 12:42:54 +0100 (CET) Received: from localhost (dynscan1.mnet-online.de [192.168.6.70]) by mail.m-online.net (Postfix) with ESMTP id 4DzZKn6h9Zz1qqkD; Mon, 15 Mar 2021 12:42:53 +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 cxYIP0ZUCoyr; Mon, 15 Mar 2021 12:42:51 +0100 (CET) X-Auth-Info: bv1XRHOB7bajuPVwQFliQ9Uf8NupUsVuqOif/+VeHPQ= 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; Mon, 15 Mar 2021 12:42:51 +0100 (CET) From: Lukasz Majewski To: Joseph Myers , Adhemerval Zanella Subject: [PATCH] tst: Add test for sigtimedwait Date: Mon, 15 Mar 2021 12:42:39 +0100 Message-Id: <20210315114239.9070-1-lukma@denx.de> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-Spam-Status: No, score=-14.7 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, 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: Florian Weimer , GNU C Library Errors-To: libc-alpha-bounces@sourceware.org Sender: "Libc-alpha" This change adds new test to assess sigtimedwait's timeout related functionality - the sigset_t is configured for SIGUSR1, which will not be triggered, so sigtimedwait just waits for timeout. To be more specific - two use cases are checked: - if sigtimedwait times out immediately when passed struct timespec has zero values of tv_nsec and tv_sec. - if sigtimedwait times out after timeout specified in passed argument Reviewed-by: Adhemerval Zanella --- sysdeps/unix/sysv/linux/Makefile | 5 +- sysdeps/unix/sysv/linux/tst-sigtimedwait.c | 61 ++++++++++++++++++++++ 2 files changed, 64 insertions(+), 2 deletions(-) create mode 100644 sysdeps/unix/sysv/linux/tst-sigtimedwait.c diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile index 41798feb35..a3eba0db01 100644 --- a/sysdeps/unix/sysv/linux/Makefile +++ b/sysdeps/unix/sysv/linux/Makefile @@ -113,8 +113,9 @@ tests += tst-clone tst-clone2 tst-clone3 tst-fanotify tst-personality \ tst-tgkill tst-sysvsem-linux tst-sysvmsg-linux tst-sysvshm-linux \ tst-timerfd tst-ppoll tst-futimens tst-utime tst-utimes \ tst-clock_adjtime tst-adjtimex tst-ntp_adjtime tst-futimes \ - tst-lutimes tst-ntp_gettime tst-ntp_gettimex tst-getrusage - + tst-lutimes tst-ntp_gettime tst-ntp_gettimex tst-getrusage \ + tst-sigtimedwait + # Test for the symbol version of fcntl that was replaced in glibc 2.28. ifeq ($(have-GLIBC_2.27)$(build-shared),yesyes) tests += tst-ofdlocks-compat diff --git a/sysdeps/unix/sysv/linux/tst-sigtimedwait.c b/sysdeps/unix/sysv/linux/tst-sigtimedwait.c new file mode 100644 index 0000000000..95a1b59592 --- /dev/null +++ b/sysdeps/unix/sysv/linux/tst-sigtimedwait.c @@ -0,0 +1,61 @@ +/* Test for sigtimedwait timeout + 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 +#include + +static int test_sigtimedwait_timeout (bool zero_tmo) +{ + /* We wait for half a second. */ + struct timespec ts; + xclock_gettime (CLOCK_REALTIME, &ts); + struct timespec timeout = make_timespec (0, zero_tmo ? 0 : TIMESPEC_HZ/2); + ts = timespec_add (ts, timeout); + + /* Set sigset to just wait for timeout. */ + sigset_t ss_usr1; + sigemptyset (&ss_usr1); + sigaddset (&ss_usr1, SIGUSR1); + + int ret = sigtimedwait (&ss_usr1, NULL, &timeout); + if (ret != -1) + FAIL_EXIT1 ("sigtimedwait failed: %m\n"); + + TEST_TIMESPEC_NOW_OR_AFTER (CLOCK_REALTIME, ts); + + return 0; +} + +static int +do_test (void) +{ + /* Check if sigtimedwait exits immediately. */ + test_sigtimedwait_timeout (true); + + /* Check if sigtimedwait exits after specified timeout. */ + test_sigtimedwait_timeout (false); + + return 0; +} + +#include