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| author | Lukasz Majewski <lukma@denx.de> | 2021-01-18 16:53:26 +0100 |
|---|---|---|
| committer | Lukasz Majewski <lukma@denx.de> | 2021-03-08 22:41:28 +0100 |
| commit | a1565550075255370f8e6c88dc9c4ad3fd7281ab (patch) | |
| tree | e9e1f2ce1d50cca15135faea0aa9a7f20fc7e33a /support | |
| parent | 496e36f2251f28961ce269548b5f3adb6546ef01 (diff) | |
| download | glibc-a1565550075255370f8e6c88dc9c4ad3fd7281ab.tar.gz glibc-a1565550075255370f8e6c88dc9c4ad3fd7281ab.tar.xz glibc-a1565550075255370f8e6c88dc9c4ad3fd7281ab.zip | |
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. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'support')
| -rw-r--r-- | support/Makefile | 1 | ||||
| -rw-r--r-- | support/xclock_settime.c | 34 | ||||
| -rw-r--r-- | support/xtime.h | 5 |
3 files changed, 40 insertions, 0 deletions
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..25e717d7aa --- /dev/null +++ b/support/xclock_settime.c @@ -0,0 +1,34 @@ +/* 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> + +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"); + + 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. */ |