lib/sys_resource.in.h

   1 /* Substitute for <sys/resource.h>.
   2    Copyright (C) 2012-2024 Free Software Foundation, Inc.
   3
   4    This file is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU Lesser General Public License as
   6    published by the Free Software Foundation; either version 2.1 of the
   7    License, or (at your option) any later version.
   8
   9    This file 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
  12    GNU Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 # if __GNUC__ >= 3
  18 @PRAGMA_SYSTEM_HEADER@
  19 # endif
  20 @PRAGMA_COLUMNS@
  21
  22 #ifndef _@GUARD_PREFIX@_SYS_RESOURCE_H
  23
  24 #if @HAVE_SYS_RESOURCE_H@
  25
  26 /* On FreeBSD 5.0, <sys/resource.h> assumes prior inclusion of <sys/types.h>
  27    and <sys/time.h>.  */
  28 # include <sys/types.h>
  29 # include <sys/time.h>
  30
  31 /* The include_next requires a split double-inclusion guard.  */
  32 # @INCLUDE_NEXT@ @NEXT_SYS_RESOURCE_H@
  33
  34 #endif
  35
  36 #ifndef _@GUARD_PREFIX@_SYS_RESOURCE_H
  37 #define _@GUARD_PREFIX@_SYS_RESOURCE_H
  38
  39 /* This file uses GNULIB_POSIXCHECK, HAVE_RAW_DECL_*.  */
  40 #if !_GL_CONFIG_H_INCLUDED
  41  #error "Please include config.h first."
  42 #endif
  43
  44 #if !@HAVE_SYS_RESOURCE_H@
  45 /* A platform that lacks <sys/resource.h>.  */
  46
  47 /* Get 'struct timeval'.  */
  48 # include <sys/time.h>
  49
  50 /* Define the RUSAGE_* constants.  */
  51 # define RUSAGE_SELF 0
  52 # define RUSAGE_CHILDREN -1
  53
  54 # ifdef __cplusplus
  55 extern "C" {
  56 # endif
  57
  58 # if !GNULIB_defined_struct_rusage
  59 /* All known platforms that lack <sys/resource.h> also lack any declaration
  60    of struct rusage in any other header.  */
  61 struct rusage
  62 {
  63   struct timeval ru_utime;      /* CPU time used in user mode */
  64   struct timeval ru_stime;      /* CPU time used in system mode (kernel) */
  65   long ru_maxrss;
  66   long ru_ixrss;
  67   long ru_idrss;
  68   long ru_isrss;
  69   long ru_minflt;
  70   long ru_majflt;
  71   long ru_nswap;
  72   long ru_inblock;
  73   long ru_oublock;
  74   long ru_msgsnd;
  75   long ru_msgrcv;
  76   long ru_nsignals;
  77   long ru_nvcsw;
  78   long ru_nivcsw;
  79 };
  80 #  define GNULIB_defined_struct_rusage 1
  81 # endif
  82
  83 # ifdef __cplusplus
  84 }
  85 # endif
  86
  87 #else
  88
  89 # ifdef __VMS                      /* OpenVMS */
  90 /* Define the RUSAGE_* constants.  */
  91 #  ifndef RUSAGE_SELF
  92 #   define RUSAGE_SELF 0
  93 #  endif
  94 #  ifndef RUSAGE_CHILDREN
  95 #   define RUSAGE_CHILDREN -1
  96 #  endif
  97 # endif
  98
  99 #endif
 100
 101 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
 102
 103 /* The definition of _GL_ARG_NONNULL is copied here.  */
 104
 105 /* The definition of _GL_WARN_ON_USE is copied here.  */
 106
 107
 108 /* Declare overridden functions.  */
 109
 110
 111 #if @GNULIB_GETRUSAGE@
 112 # if !@HAVE_GETRUSAGE@
 113 _GL_FUNCDECL_SYS (getrusage, int, (int who, struct rusage *usage_p)
 114                                   _GL_ARG_NONNULL ((2)));
 115 # endif
 116 _GL_CXXALIAS_SYS (getrusage, int, (int who, struct rusage *usage_p));
 117 _GL_CXXALIASWARN (getrusage);
 118 #elif defined GNULIB_POSIXCHECK
 119 # undef getrusage
 120 # if HAVE_RAW_DECL_GETRUSAGE
 121 _GL_WARN_ON_USE (getrusage, "getrusage is unportable - "
 122                  "use gnulib module getrusage for portability");
 123 # endif
 124 #endif
 125
 126
 127 #endif /* _@GUARD_PREFIX@_SYS_RESOURCE_H */
 128 #endif /* _@GUARD_PREFIX@_SYS_RESOURCE_H */