sysdeps/unix/sysv/linux/alpha/osf_setitimer.c

   1 /* getitimer -- Get the state of an interval timer.  Linux/Alpha/tv32 version.
   2    Copyright (C) 2019-2024 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <shlib-compat.h>
  20
  21 #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)
  22
  23 #include <time.h>
  24 #include <sys/time.h>
  25 #include <tv32-compat.h>
  26
  27 int
  28 attribute_compat_text_section
  29 __setitimer_tv32 (int which, const struct __itimerval32 *restrict new_value,
  30                   struct __itimerval32 *restrict old_value)
  31 {
  32   struct itimerval new_value_64;
  33   new_value_64.it_interval
  34     = valid_timeval32_to_timeval (new_value->it_interval);
  35   new_value_64.it_value
  36     = valid_timeval32_to_timeval (new_value->it_value);
  37
  38   if (old_value == NULL)
  39     return __setitimer (which, &new_value_64, NULL);
  40
  41   struct itimerval old_value_64;
  42   if (__setitimer (which, &new_value_64, &old_value_64) == -1)
  43     return -1;
  44
  45   /* Write all fields of 'old_value' regardless of overflow.  */
  46   old_value->it_interval
  47      = valid_timeval_to_timeval32 (old_value_64.it_interval);
  48   old_value->it_value
  49      = valid_timeval_to_timeval32 (old_value_64.it_value);
  50   return 0;
  51 }
  52
  53 compat_symbol (libc, __setitimer_tv32, setitimer, GLIBC_2_0);
  54 #endif