include/ulimit.h

   1 /* Copyright (C) 1997-2021 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 _ULIMIT_H
  19 #define _ULIMIT_H       1
  20
  21 #include <features.h>
  22
  23 /* Constants used as the first parameter for `ulimit'.  They denote limits
  24    which can be set or retrieved using this function.  */
  25 enum
  26 {
  27   UL_GETFSIZE = 1,                      /* Return limit on the size of a file,
  28                                            in units of 512 bytes.  */
  29 #define UL_GETFSIZE     UL_GETFSIZE
  30   UL_SETFSIZE,                          /* Set limit on the size of a file to
  31                                            second argument.  */
  32 #define UL_SETFSIZE     UL_SETFSIZE
  33   __UL_GETMAXBRK,                       /* Return the maximum possible address
  34                                            of the data segment.  */
  35   __UL_GETOPENMAX                       /* Return the maximum number of files
  36                                            that the calling process can open.*/
  37 };
  38
  39
  40 __BEGIN_DECLS
  41
  42 /* Control process limits according to CMD.  */
  43 extern long int ulimit (int __cmd, ...) __THROW;
  44
  45 __END_DECLS
  46
  47 #endif /* ulimit.h */