glibc/support/xclock_settime.c

/* clock_settime with error checking.
   Copyright (C) 2021-2024 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);
}