sysdeps/mach/hurd/getrlimit.c

   1 /* Copyright (C) 1991-2023 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <sys/resource.h>
  19 #include <errno.h>
  20 #include <hurd.h>
  21 #include <hurd/resource.h>
  22
  23 /* Put the soft and hard limits for RESOURCE in *RLIMITS.
  24    Returns 0 if successful, -1 if not (and sets errno).  */
  25 int
  26 __getrlimit (enum __rlimit_resource resource, struct rlimit *rlimits)
  27 {
  28   struct rlimit lim;
  29
  30   if (rlimits == NULL || (unsigned int) resource >= RLIMIT_NLIMITS)
  31     {
  32       errno = EINVAL;
  33       return -1;
  34     }
  35
  36   HURD_CRITICAL_BEGIN;
  37   __mutex_lock (&_hurd_rlimit_lock);
  38   lim = _hurd_rlimits[resource];
  39   __mutex_unlock (&_hurd_rlimit_lock);
  40   HURD_CRITICAL_END;
  41
  42   *rlimits = lim;
  43
  44   return 0;
  45 }
  46 libc_hidden_def (__getrlimit)
  47 weak_alias (__getrlimit, getrlimit)