Back to index

glibc  2.9
get_child_max.c
Go to the documentation of this file.
00001 /* Get POSIX {CHILD_MAX} run-time limit value.  Unix version.
00002    Copyright (C) 2006 Free Software Foundation, Inc.
00003    This file is part of the GNU C Library.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #include <limits.h>
00021 #include <sys/sysinfo.h>
00022 #include <sys/resource.h>
00023 
00024 #ifndef CHILD_MAX
00025 long int
00026 __get_child_max (void)
00027 {
00028 # ifdef RLIMIT_NPROC
00029   struct rlimit limit;
00030   if (__getrlimit (RLIMIT_NPROC, &limit) == 0
00031       && limit.rlim_cur != RLIM_INFINITY)
00032     return limit.rlim_cur;
00033 # endif
00034 
00035   return -1;
00036 }
00037 #endif