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From: Adhemerval Zanella <azanella@sourceware.org> To: glibc-cvs@sourceware.org Subject: [glibc/azanella/y2038] support: Provide xclock_settime test helper function Date: Tue, 23 Feb 2021 12:37:49 +0000 (GMT) [thread overview] Message-ID: <20210223123749.B573B393BC08@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=4777fff222a5e47eb2ce42054c10cc48afcb4075 commit 4777fff222a5e47eb2ce42054c10cc48afcb4075 Author: Lukasz Majewski <lukma@denx.de> Date: Mon Jan 18 16:53:26 2021 +0100 support: Provide xclock_settime test helper function The xclock_settime is a wrapper function on the clock_settime syscall to be used in the test code. It checks if the GLIBC_TEST_ALLOW_TIME_SETTING env variable is defined in the environment in which test is executed. If it is not - the test ends as unsupported. Otherwise, the clock-settime is executed and return value is assessed. Diff: --- support/Makefile | 1 + support/xclock_settime.c | 35 +++++++++++++++++++++++++++++++++++ support/xtime.h | 5 +++++ 3 files changed, 41 insertions(+) diff --git a/support/Makefile b/support/Makefile index bb9889efb4..8d63fbd5da 100644 --- a/support/Makefile +++ b/support/Makefile @@ -90,6 +90,7 @@ libsupport-routines = \ xchdir \ xchroot \ xclock_gettime \ + xclock_settime \ xclose \ xchmod \ xconnect \ diff --git a/support/xclock_settime.c b/support/xclock_settime.c new file mode 100644 index 0000000000..12a83b9d79 --- /dev/null +++ b/support/xclock_settime.c @@ -0,0 +1,35 @@ +/* clock_settime with error checking. + 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 + <https://www.gnu.org/licenses/>. */ + +#include <stdlib.h> +#include <support/check.h> +#include <support/xtime.h> +#include <support/xthread.h> + +void +xclock_settime (clockid_t clockid, + const struct timespec *ts) +{ + if (getenv (SETTIME_ENV_NAME) == NULL) + FAIL_UNSUPPORTED ("clock_settime is executed only when "\ + SETTIME_ENV_NAME" is set\n"); + + const int ret = clock_settime (clockid, ts); + if (ret < 0) + FAIL_EXIT1 ("clock_settime (%d): %m", clockid); +} diff --git a/support/xtime.h b/support/xtime.h index 2482837dee..b4ac3b59e2 100644 --- a/support/xtime.h +++ b/support/xtime.h @@ -23,10 +23,15 @@ __BEGIN_DECLS +/* Name of the env variable, which indicates if it is possible to + adjust time on target machine. */ +#define SETTIME_ENV_NAME "GLIBC_TEST_ALLOW_TIME_SETTING" + /* The following functions call the corresponding libc functions and terminate the process on error. */ void xclock_gettime (clockid_t clock, struct timespec *ts); +void xclock_settime (clockid_t clock, const struct timespec *ts); /* This helper can often simplify tests by avoiding an explicit variable declaration or allowing that declaration to be const. */
next reply other threads:[~2021-02-23 12:37 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-02-23 12:37 Adhemerval Zanella [this message] 2021-02-23 20:39 Adhemerval Zanella 2021-02-26 20:42 Adhemerval Zanella 2021-03-01 17:36 Adhemerval Zanella 2021-03-02 12:31 Adhemerval Zanella 2021-03-04 11:30 Adhemerval Zanella 2021-03-04 17:37 Adhemerval Zanella
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