sysdeps/unix/sysv/linux/getrusage.c

   1 /* getrusage -- get the rusage struct.  Linux 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 <sys/time.h>
  20 #include <sys/resource.h>
  21 #include <sys/types.h>
  22 #include <sysdep.h>
  23 #include <tv32-compat.h>
  24
  25 int
  26 __getrusage64 (enum __rusage_who who, struct __rusage64 *usage)
  27 {
  28 #if __KERNEL_OLD_TIMEVAL_MATCHES_TIMEVAL64
  29   return INLINE_SYSCALL_CALL (getrusage, who, usage);
  30 #else
  31   struct __rusage32 usage32;
  32   if (INLINE_SYSCALL_CALL (getrusage, who, &usage32) == -1)
  33     return -1;
  34
  35   rusage32_to_rusage64 (&usage32, usage);
  36   return 0;
  37 #endif
  38 }
  39
  40 #if __TIMESIZE != 64
  41 libc_hidden_def (__getrusage64)
  42 int
  43 __getrusage (enum __rusage_who who, struct rusage *usage)
  44 {
  45   int ret ;
  46   struct __rusage64 usage64;
  47
  48   ret = __getrusage64 (who, &usage64);
  49
  50   if (ret != 0)
  51     return ret;
  52
  53   rusage64_to_rusage (&usage64, usage);
  54
  55   return ret;
  56 }
  57 #endif
  58 weak_alias (__getrusage, getrusage)