sysdeps/mach/hurd/getrlimit.c

   1 /* Copyright (C) 1991,93,94,96,97,2000 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, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <sys/resource.h>
  20 #include <errno.h>
  21 #include <hurd.h>
  22 #include <hurd/resource.h>
  23
  24 /* Put the soft and hard limits for RESOURCE in *RLIMITS.
  25    Returns 0 if successful, -1 if not (and sets errno).  */
  26 int
  27 __getrlimit (enum __rlimit_resource resource, struct rlimit *rlimits)
  28 {
  29   struct rlimit lim;
  30
  31   if (rlimits == NULL || (unsigned int) resource >= RLIMIT_NLIMITS)
  32     {
  33       errno = EINVAL;
  34       return -1;
  35     }
  36
  37   HURD_CRITICAL_BEGIN;
  38   __mutex_lock (&_hurd_rlimit_lock);
  39   lim = _hurd_rlimits[resource];
  40   __mutex_unlock (&_hurd_rlimit_lock);
  41   HURD_CRITICAL_END;
  42
  43   *rlimits = lim;
  44
  45   return 0;
  46 }
  47 weak_alias (__getrlimit, getrlimit)