[LTP] [PATCH v1] Refactor and merge timerfd02/03 using new LTP API

Andrea Cervesato andrea.cervesato@suse.com
Tue Sep 5 11:17:16 CEST 2023


Hi,

please ignore this patch and take v2 into account, because this patch is 
not removing timerfd03 from .gitignore and syscalls runtest file.

On 9/5/23 09:38, Andrea Cervesato wrote:
> From: Andrea Cervesato <andrea.cervesato@suse.com>
>
> timerfd02 and timerfd03 has been merged together, testing the flags
> value via LTP test cases.
>
> Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.com>
> ---
>   testcases/kernel/syscalls/timerfd/timerfd02.c | 201 ++++--------------
>   testcases/kernel/syscalls/timerfd/timerfd03.c | 170 ---------------
>   2 files changed, 39 insertions(+), 332 deletions(-)
>   delete mode 100644 testcases/kernel/syscalls/timerfd/timerfd03.c
>
> diff --git a/testcases/kernel/syscalls/timerfd/timerfd02.c b/testcases/kernel/syscalls/timerfd/timerfd02.c
> index 936cdbc53..3dabfb5c0 100644
> --- a/testcases/kernel/syscalls/timerfd/timerfd02.c
> +++ b/testcases/kernel/syscalls/timerfd/timerfd02.c
> @@ -1,174 +1,51 @@
> -/******************************************************************************/
> -/*                                                                            */
> -/* Copyright (c) Ulrich Drepper <drepper@redhat.com>                          */
> -/* Copyright (c) International Business Machines  Corp., 2009                 */
> -/*                                                                            */
> -/* This program is free software;  you can redistribute it and/or modify      */
> -/* it under the terms of the GNU General Public License as published by       */
> -/* the Free Software Foundation; either version 2 of the License, or          */
> -/* (at your option) any later version.                                        */
> -/*                                                                            */
> -/* This program 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 General Public License for more details.                           */
> -/*                                                                            */
> -/* You should have received a copy of the GNU General Public License          */
> -/* along with this program;  if not, write to the Free Software               */
> -/* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA    */
> -/*                                                                            */
> -/******************************************************************************/
> -/******************************************************************************/
> -/*                                                                            */
> -/* File:        timerfd02.c                                                   */
> -/*                                                                            */
> -/* Description: This Program tests the new system call introduced in 2.6.27.  */
> -/*              Ulrich´s comment as in:                                       */
> -/* http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=11fcb6c14676023d0bd437841f5dcd670e7990a0 */
> -/*              says:                                                         */
> -/* The timerfd_create syscall already has a flags parameter.  It just is      */
> -/* unused so far.  This patch changes this by introducing the TFD_CLOEXEC     */
> -/* flag to set the close-on-exec flag for the returned file descriptor. A new */
> -/* name TFD_CLOEXEC is introduced which in this implementation must have the  */
> -/* same value as O_CLOEXEC.                                                   */
> -/* The following test must be adjusted for architectures other than x86 and   */
> -/* x86-64 and in case the syscall numbers changed.                            */
> -/*                                                                            */
> -/* Usage:  <for command-line>                                                 */
> -/* timerfd02 [-c n] [-e][-i n] [-I x] [-p x] [-t]                           */
> -/*      where,  -c n : Run n copies concurrently.                             */
> -/*              -e   : Turn on errno logging.                                 */
> -/*              -i n : Execute test n times.                                  */
> -/*              -I x : Execute test for x seconds.                            */
> -/*              -P x : Pause for x seconds between iterations.                */
> -/*              -t   : Turn on syscall timing.                                */
> -/*                                                                            */
> -/* Total Tests: 1                                                             */
> -/*                                                                            */
> -/* Test Name:   timerfd02                                                     */
> -/*                                                                            */
> -/* Author:      Ulrich Drepper <drepper@redhat.com>                           */
> -/*                                                                            */
> -/* History:     Created - Jan 08 2009 - Ulrich Drepper <drepper@redhat.com>   */
> -/*              Ported to LTP                                                 */
> -/*                      - Jan 08 2009 - Subrata <subrata@linux.vnet.ibm.com>  */
> -/******************************************************************************/
> -
> -#include <stdio.h>
> -#include <time.h>
> -#include <unistd.h>
> -#include <sys/syscall.h>
> -#include <errno.h>
> -
> -#include "test.h"
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/*
> + * Copyright (c) Ulrich Drepper <drepper@redhat.com>
> + * Copyright (c) International Business Machines  Corp., 2009
> + * Copyright (C) 2023 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
> + */
> +/*\
> + * [Description]
> + *
> + * This test verifies that:
> + * - TFD_CLOEXEC sets the close-on-exec file status flag on the new open  file
> + * - TFD_NONBLOCK sets the O_NONBLOCK file status flag on the new open file
> + */
> +
> +#include "tst_test.h"
> +#include "tst_safe_timerfd.h"
>   #include "lapi/fcntl.h"
>   #include "lapi/syscalls.h"
>   
> -#define TFD_CLOEXEC O_CLOEXEC
> +static int fdesc;
>   
> -char *TCID = "timerfd02";
> -int testno;
> -int TST_TOTAL = 1;
> +static struct test_case_t {
> +	int flags;
> +	int check;
> +	int expected;
> +} tcases[] = {
> +	{ 0, F_GETFD, 0 },
> +	{ TFD_CLOEXEC, F_GETFD, FD_CLOEXEC },
> +	{ TFD_NONBLOCK, F_GETFL, O_NONBLOCK }
> +};
>   
> -/* Extern Global Functions */
> -/******************************************************************************/
> -/*                                                                            */
> -/* Function:    cleanup                                                       */
> -/*                                                                            */
> -/* Description: Performs all one time clean up for this test on successful    */
> -/*              completion,  premature exit or  failure. Closes all temporary */
> -/*              files, removes all temporary directories exits the test with  */
> -/*              appropriate return code by calling tst_exit() function.       */
> -/*                                                                            */
> -/* Input:       None.                                                         */
> -/*                                                                            */
> -/* Output:      None.                                                         */
> -/*                                                                            */
> -/* Return:      On failure - Exits calling tst_exit(). Non '0' return code.   */
> -/*              On success - Exits calling tst_exit(). With '0' return code.  */
> -/*                                                                            */
> -/******************************************************************************/
> -void cleanup(void)
> +static void run(unsigned int i)
>   {
> +	struct test_case_t *tcase = &tcases[i];
>   
> -	tst_rmdir();
> -
> +	TST_EXP_FD(fdesc = SAFE_TIMERFD_CREATE(CLOCK_REALTIME, tcase->flags));
> +	TST_EXP_EQ_LI(SAFE_FCNTL(fdesc, tcase->check) & tcase->expected, tcase->expected);
> +	SAFE_CLOSE(fdesc);
>   }
>   
> -/* Local  Functions */
> -/******************************************************************************/
> -/*                                                                            */
> -/* Function:    setup                                                         */
> -/*                                                                            */
> -/* Description: Performs all one time setup for this test. This function is   */
> -/*              typically used to capture signals, create temporary dirs      */
> -/*              and temporary files that may be used in the course of this    */
> -/*              test.                                                         */
> -/*                                                                            */
> -/* Input:       None.                                                         */
> -/*                                                                            */
> -/* Output:      None.                                                         */
> -/*                                                                            */
> -/* Return:      On failure - Exits by calling cleanup().                      */
> -/*              On success - returns 0.                                       */
> -/*                                                                            */
> -/******************************************************************************/
> -void setup(void)
> +static void cleanup(void)
>   {
> -	/* Capture signals if any */
> -	/* Create temporary directories */
> -	TEST_PAUSE;
> -	tst_tmpdir();
> +	if (fcntl(fdesc, F_GETFD) != -1)
> +		SAFE_CLOSE(fdesc);
>   }
>   
> -int main(int argc, char *argv[])
> -{
> -	int fd, coe;
> -	int lc;
> -
> -	tst_parse_opts(argc, argv, NULL, NULL);
> -	setup();
> -
> -	for (lc = 0; TEST_LOOPING(lc); ++lc) {
> -		tst_count = 0;
> -		for (testno = 0; testno < TST_TOTAL; ++testno) {
> -			fd = tst_syscall(__NR_timerfd_create,
> -				CLOCK_REALTIME, 0);
> -			if (fd == -1) {
> -				tst_brkm(TFAIL, cleanup,
> -					 "timerfd_create(0) failed");
> -			}
> -			coe = fcntl(fd, F_GETFD);
> -			if (coe == -1) {
> -				tst_brkm(TBROK, cleanup, "fcntl failed");
> -			}
> -			if (coe & FD_CLOEXEC) {
> -				tst_brkm(TFAIL,
> -					 cleanup,
> -					 "timerfd_create(0) set close-on-exec flag");
> -			}
> -			close(fd);
> -
> -			fd = tst_syscall(__NR_timerfd_create, CLOCK_REALTIME,
> -				     TFD_CLOEXEC);
> -			if (fd == -1) {
> -				tst_brkm(TFAIL,
> -					 cleanup,
> -					 "timerfd_create(TFD_CLOEXEC) failed");
> -			}
> -			coe = fcntl(fd, F_GETFD);
> -			if (coe == -1) {
> -				tst_brkm(TBROK, cleanup, "fcntl failed");
> -			}
> -			if ((coe & FD_CLOEXEC) == 0) {
> -				tst_brkm(TFAIL,
> -					 cleanup,
> -					 "timerfd_create(TFD_CLOEXEC) set close-on-exec flag");
> -			}
> -			close(fd);
> -			tst_resm(TPASS, "timerfd_create(TFD_CLOEXEC) Passed");
> -			cleanup();
> -		}
> -	}
> -	tst_exit();
> -}
> +static struct tst_test test = {
> +	.test = run,
> +	.tcnt = ARRAY_SIZE(tcases),
> +	.cleanup = cleanup,
> +};
> diff --git a/testcases/kernel/syscalls/timerfd/timerfd03.c b/testcases/kernel/syscalls/timerfd/timerfd03.c
> deleted file mode 100644
> index 89dec325f..000000000
> --- a/testcases/kernel/syscalls/timerfd/timerfd03.c
> +++ /dev/null
> @@ -1,170 +0,0 @@
> -/******************************************************************************/
> -/*                                                                            */
> -/* Copyright (c) Ulrich Drepper <drepper@redhat.com>                          */
> -/* Copyright (c) International Business Machines  Corp., 2009                 */
> -/*                                                                            */
> -/* This program is free software;  you can redistribute it and/or modify      */
> -/* it under the terms of the GNU General Public License as published by       */
> -/* the Free Software Foundation; either version 2 of the License, or          */
> -/* (at your option) any later version.                                        */
> -/*                                                                            */
> -/* This program 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 General Public License for more details.                           */
> -/*                                                                            */
> -/* You should have received a copy of the GNU General Public License          */
> -/* along with this program;  if not, write to the Free Software               */
> -/* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA    */
> -/*                                                                            */
> -/******************************************************************************/
> -/******************************************************************************/
> -/*                                                                            */
> -/* File:        timerfd03.c                                                   */
> -/*                                                                            */
> -/* Description: This Program tests the new system call introduced in 2.6.27.  */
> -/*              Ulrich´s comment as in:                                       */
> -/* http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6b1ef0e60d42f2fdaec26baee8327eb156347b4f */
> -/* which says:                                                                */
> -/* This patch adds support for the TFD_NONBLOCK flag to timerfd_create.  The  */
> -/* additional changes needed are minimal. The following test must be adjusted */
> -/* for architectures other than x86 and x86-64 and in case the syscall numbers*/
> -/* changed.                                                                   */
> -/*                                                                            */
> -/* Usage:  <for command-line>                                                 */
> -/* timerfd03 [-c n] [-e][-i n] [-I x] [-p x] [-t]                          */
> -/*      where,  -c n : Run n copies concurrently.                             */
> -/*              -e   : Turn on errno logging.                                 */
> -/*              -i n : Execute test n times.                                  */
> -/*              -I x : Execute test for x seconds.                            */
> -/*              -P x : Pause for x seconds between iterations.                */
> -/*              -t   : Turn on syscall timing.                                */
> -/*                                                                            */
> -/* Total Tests: 1                                                             */
> -/*                                                                            */
> -/* Test Name:   timerfd03                                                  */
> -/*                                                                            */
> -/* Author:      Ulrich Drepper <drepper@redhat.com>                           */
> -/*                                                                            */
> -/* History:     Created - Jan 13 2009 - Ulrich Drepper <drepper@redhat.com>   */
> -/*              Ported to LTP                                                 */
> -/*                      - Jan 13 2009 - Subrata <subrata@linux.vnet.ibm.com>  */
> -/******************************************************************************/
> -#include <stdio.h>
> -#include <time.h>
> -#include <unistd.h>
> -#include <sys/syscall.h>
> -#include <errno.h>
> -
> -#include "test.h"
> -#include "lapi/fcntl.h"
> -#include "lapi/syscalls.h"
> -
> -#define TFD_NONBLOCK O_NONBLOCK
> -
> -char *TCID = "timerfd03";
> -int testno;
> -int TST_TOTAL = 1;
> -
> -/* Extern Global Functions */
> -/******************************************************************************/
> -/*                                                                            */
> -/* Function:    cleanup                                                       */
> -/*                                                                            */
> -/* Description: Performs all one time clean up for this test on successful    */
> -/*              completion,  premature exit or  failure. Closes all temporary */
> -/*              files, removes all temporary directories exits the test with  */
> -/*              appropriate return code by calling tst_exit() function.       */
> -/*                                                                            */
> -/* Input:       None.                                                         */
> -/*                                                                            */
> -/* Output:      None.                                                         */
> -/*                                                                            */
> -/* Return:      On failure - Exits calling tst_exit(). Non '0' return code.   */
> -/*              On success - Exits calling tst_exit(). With '0' return code.  */
> -/*                                                                            */
> -/******************************************************************************/
> -void cleanup(void)
> -{
> -
> -	tst_rmdir();
> -
> -}
> -
> -/* Local  Functions */
> -/******************************************************************************/
> -/*                                                                            */
> -/* Function:    setup                                                         */
> -/*                                                                            */
> -/* Description: Performs all one time setup for this test. This function is   */
> -/*              typically used to capture signals, create temporary dirs      */
> -/*              and temporary files that may be used in the course of this    */
> -/*              test.                                                         */
> -/*                                                                            */
> -/* Input:       None.                                                         */
> -/*                                                                            */
> -/* Output:      None.                                                         */
> -/*                                                                            */
> -/* Return:      On failure - Exits by calling cleanup().                      */
> -/*              On success - returns 0.                                       */
> -/*                                                                            */
> -/******************************************************************************/
> -void setup(void)
> -{
> -	/* Capture signals if any */
> -	/* Create temporary directories */
> -	TEST_PAUSE;
> -	tst_tmpdir();
> -}
> -
> -int main(int argc, char *argv[])
> -{
> -	int fd, fl;
> -	int lc;
> -
> -	tst_parse_opts(argc, argv, NULL, NULL);
> -	setup();
> -
> -	for (lc = 0; TEST_LOOPING(lc); ++lc) {
> -		tst_count = 0;
> -		for (testno = 0; testno < TST_TOTAL; ++testno) {
> -			fd = tst_syscall(__NR_timerfd_create,
> -				CLOCK_REALTIME, 0);
> -			if (fd == -1) {
> -				tst_brkm(TFAIL, cleanup,
> -					 "timerfd_create(0) failed");
> -			}
> -			fl = fcntl(fd, F_GETFL);
> -			if (fl == -1) {
> -				tst_brkm(TBROK, cleanup, "fcntl failed");
> -			}
> -			if (fl & O_NONBLOCK) {
> -				tst_brkm(TFAIL,
> -					 cleanup,
> -					 "timerfd_create(0) set non-blocking mode");
> -			}
> -			close(fd);
> -
> -			fd = tst_syscall(__NR_timerfd_create, CLOCK_REALTIME,
> -				     TFD_NONBLOCK);
> -			if (fd == -1) {
> -				tst_brkm(TFAIL,
> -					 cleanup,
> -					 "timerfd_create(TFD_NONBLOCK) failed");
> -			}
> -			fl = fcntl(fd, F_GETFL);
> -			if (fl == -1) {
> -				tst_brkm(TBROK, cleanup, "fcntl failed");
> -			}
> -			if ((fl & O_NONBLOCK) == 0) {
> -				tst_brkm(TFAIL,
> -					 cleanup,
> -					 "timerfd_create(TFD_NONBLOCK) set non-blocking mode");
> -			}
> -			close(fd);
> -			tst_resm(TPASS, "timerfd_create(TFD_NONBLOCK) PASSED");
> -			cleanup();
> -		}
> -	}
> -	tst_exit();
> -}

Andrea Cervesato



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