1  /* timerfd_gettime -- get the timer setting referred to by file descriptor.
       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 License as
       7     published by the Free Software Foundation; either version 2.1 of the
       8     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; see the file COPYING.LIB.  If
      17     not, see <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <errno.h>
      20  #include <stdlib.h>
      21  #include <time.h>
      22  #include <sysdep.h>
      23  #include <kernel-features.h>
      24  
      25  int
      26  __timerfd_gettime64 (int fd, struct __itimerspec64 *value)
      27  {
      28  #ifndef __NR_timerfd_gettime64
      29  # define __NR_timerfd_gettime64 __NR_timerfd_gettime
      30  #endif
      31  
      32  #ifdef __ASSUME_TIME64_SYSCALLS
      33    return INLINE_SYSCALL_CALL (timerfd_gettime64, fd, value);
      34  #else
      35    int ret = INLINE_SYSCALL_CALL (timerfd_gettime64, fd, value);
      36    if (ret == 0 || errno != ENOSYS)
      37      return ret;
      38    struct itimerspec its32;
      39    int retval = INLINE_SYSCALL_CALL (timerfd_gettime, fd, &its32);
      40    if (retval == 0)
      41      {
      42        value->it_interval = valid_timespec_to_timespec64 (its32.it_interval);
      43        value->it_value = valid_timespec_to_timespec64 (its32.it_value);
      44      }
      45  
      46    return retval;
      47  #endif
      48  }
      49  
      50  #if __TIMESIZE != 64
      51  libc_hidden_def (__timerfd_gettime64)
      52  
      53  int
      54  __timerfd_gettime (int fd, struct itimerspec *value)
      55  {
      56    struct __itimerspec64 its64;
      57    int retval = __timerfd_gettime64 (fd, &its64);
      58    if (retval == 0)
      59      {
      60        value->it_interval = valid_timespec64_to_timespec (its64.it_interval);
      61        value->it_value = valid_timespec64_to_timespec (its64.it_value);
      62      }
      63  
      64    return retval;
      65  }
      66  #endif
      67  strong_alias (__timerfd_gettime, timerfd_gettime)