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glibc  2.9
getrlimit.c
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00001 /* Copyright (C) 1991,93,94,96,97,2000 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003 
00004    The GNU C Library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Lesser General Public
00006    License as published by the Free Software Foundation; either
00007    version 2.1 of the License, or (at your option) any later version.
00008 
00009    The GNU C Library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Lesser General Public License for more details.
00013 
00014    You should have received a copy of the GNU Lesser General Public
00015    License along with the GNU C Library; if not, write to the Free
00016    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00017    02111-1307 USA.  */
00018 
00019 #include <sys/resource.h>
00020 #include <errno.h>
00021 #include <hurd.h>
00022 #include <hurd/resource.h>
00023 
00024 /* Put the soft and hard limits for RESOURCE in *RLIMITS.
00025    Returns 0 if successful, -1 if not (and sets errno).  */
00026 int
00027 __getrlimit (enum __rlimit_resource resource, struct rlimit *rlimits)
00028 {
00029   struct rlimit lim;
00030 
00031   if (rlimits == NULL || (unsigned int) resource >= RLIMIT_NLIMITS)
00032     {
00033       errno = EINVAL;
00034       return -1;
00035     }
00036 
00037   HURD_CRITICAL_BEGIN;
00038   __mutex_lock (&_hurd_rlimit_lock);
00039   lim = _hurd_rlimits[resource];
00040   __mutex_unlock (&_hurd_rlimit_lock);
00041   HURD_CRITICAL_END;
00042 
00043   *rlimits = lim;
00044 
00045   return 0;
00046 }
00047 weak_alias (__getrlimit, getrlimit)