lib/sys_resource.in.h

   1 /* Substitute for <sys/resource.h>.
   2    Copyright (C) 2012-2021 Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 2, or (at your option)
   7    any later version.
   8
   9    This program 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 General Public License for more details.
  13
  14    You should have received a copy of the GNU 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 #if !@HAVE_SYS_RESOURCE_H@
  40 /* A platform that lacks <sys/resource.h>.  */
  41
  42 /* Get 'struct timeval'.  */
  43 # include <sys/time.h>
  44
  45 /* Define the RUSAGE_* constants.  */
  46 # define RUSAGE_SELF 0
  47 # define RUSAGE_CHILDREN -1
  48
  49 # ifdef __cplusplus
  50 extern "C" {
  51 # endif
  52
  53 # if !GNULIB_defined_struct_rusage
  54 /* All known platforms that lack <sys/resource.h> also lack any declaration
  55    of struct rusage in any other header.  */
  56 struct rusage
  57 {
  58   struct timeval ru_utime;      /* CPU time used in user mode */
  59   struct timeval ru_stime;      /* CPU time used in system mode (kernel) */
  60   long ru_maxrss;
  61   long ru_ixrss;
  62   long ru_idrss;
  63   long ru_isrss;
  64   long ru_minflt;
  65   long ru_majflt;
  66   long ru_nswap;
  67   long ru_inblock;
  68   long ru_oublock;
  69   long ru_msgsnd;
  70   long ru_msgrcv;
  71   long ru_nsignals;
  72   long ru_nvcsw;
  73   long ru_nivcsw;
  74 };
  75 #  define GNULIB_defined_struct_rusage 1
  76 # endif
  77
  78 # ifdef __cplusplus
  79 }
  80 # endif
  81
  82 #else
  83
  84 # ifdef __VMS                      /* OpenVMS */
  85 /* Define the RUSAGE_* constants.  */
  86 #  ifndef RUSAGE_SELF
  87 #   define RUSAGE_SELF 0
  88 #  endif
  89 #  ifndef RUSAGE_CHILDREN
  90 #   define RUSAGE_CHILDREN -1
  91 #  endif
  92 # endif
  93
  94 #endif
  95
  96 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
  97
  98 /* The definition of _GL_ARG_NONNULL is copied here.  */
  99
 100 /* The definition of _GL_WARN_ON_USE is copied here.  */
 101
 102
 103 /* Declare overridden functions.  */
 104
 105
 106 #if @GNULIB_GETRUSAGE@
 107 # if !@HAVE_GETRUSAGE@
 108 _GL_FUNCDECL_SYS (getrusage, int, (int who, struct rusage *usage_p)
 109                                   _GL_ARG_NONNULL ((2)));
 110 # endif
 111 _GL_CXXALIAS_SYS (getrusage, int, (int who, struct rusage *usage_p));
 112 _GL_CXXALIASWARN (getrusage);
 113 #elif defined GNULIB_POSIXCHECK
 114 # undef getrusage
 115 # if HAVE_RAW_DECL_GETRUSAGE
 116 _GL_WARN_ON_USE (getrusage, "getrusage is unportable - "
 117                  "use gnulib module getrusage for portability");
 118 # endif
 119 #endif
 120
 121
 122 #endif /* _@GUARD_PREFIX@_SYS_RESOURCE_H */
 123 #endif /* _@GUARD_PREFIX@_SYS_RESOURCE_H */