resource/sys/vlimit.h

   1 /* Copyright (C) 1991-2022 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 #ifndef _SYS_VLIMIT_H
  19 #define _SYS_VLIMIT_H   1
  20
  21 #include <features.h>
  22
  23 __BEGIN_DECLS
  24
  25 /* This interface is obsolete, and is superseded by <sys/resource.h>.  */
  26
  27 /* Kinds of resource limit.  */
  28 enum __vlimit_resource
  29 {
  30   /* Setting this non-zero makes it impossible to raise limits.
  31      Only the super-use can set it to zero.
  32
  33      This is not implemented in recent versions of BSD, nor by
  34      the GNU C library.  */
  35   LIM_NORAISE,
  36
  37   /* CPU time available for each process (seconds).  */
  38   LIM_CPU,
  39
  40   /* Largest file which can be created (bytes).  */
  41   LIM_FSIZE,
  42
  43   /* Maximum size of the data segment (bytes).  */
  44   LIM_DATA,
  45
  46   /* Maximum size of the stack segment (bytes).  */
  47   LIM_STACK,
  48
  49   /* Largest core file that will be created (bytes).  */
  50   LIM_CORE,
  51
  52   /* Resident set size (bytes).  */
  53   LIM_MAXRSS
  54 };
  55
  56 /* This means no limit.  */
  57 #define INFINITY 0x7fffffff
  58
  59
  60 /* Set the soft limit for RESOURCE to be VALUE.
  61    Returns 0 for success, -1 for failure.  */
  62 extern int vlimit (enum __vlimit_resource __resource, int __value) __THROW;
  63
  64
  65 __END_DECLS
  66
  67 #endif /* sys/vlimit.h  */