sysdeps/unix/sysv/linux/getitimer.c

   1 /* getitimer -- Get the state of an interval timer.  Linux/32 version.
   2    Copyright (C) 2020-2023 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 <time.h>
  20 #include <sys/time.h>
  21 #include <sys/types.h>
  22 #include <sysdep.h>
  23 #include <tv32-compat.h>
  24
  25 int
  26 __getitimer64 (__itimer_which_t which, struct __itimerval64 *curr_value)
  27 {
  28 #if __KERNEL_OLD_TIMEVAL_MATCHES_TIMEVAL64
  29   return INLINE_SYSCALL_CALL (getitimer, which, curr_value);
  30 #else
  31   struct __itimerval32 curr_value_32;
  32
  33   if (INLINE_SYSCALL_CALL (getitimer, which, &curr_value_32) == -1)
  34     return -1;
  35
  36   curr_value->it_interval
  37     = valid_timeval32_to_timeval64 (curr_value_32.it_interval);
  38   curr_value->it_value
  39     = valid_timeval32_to_timeval64 (curr_value_32.it_value);
  40   return 0;
  41 #endif
  42 }
  43
  44 #if __TIMESIZE != 64
  45 libc_hidden_def (__getitimer64)
  46 int
  47 __getitimer (__itimer_which_t which, struct itimerval *curr_value)
  48 {
  49   struct __itimerval64 val64;
  50   if (__getitimer64 (which, &val64) != 0)
  51     return -1;
  52
  53   curr_value->it_interval
  54     = valid_timeval64_to_timeval (val64.it_interval);
  55   curr_value->it_value
  56     = valid_timeval64_to_timeval (val64.it_value);
  57
  58   return 0;
  59 }
  60 #endif
  61 weak_alias (__getitimer, getitimer)