gl/sys_time.in.h

   1 /* Provide a more complete sys/time.h.
   2
   3    Copyright (C) 2007-2010 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3, or (at your option)
   8    any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to the Free Software Foundation,
  17    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  18
  19 /* Written by Paul Eggert.  */
  20
  21 #if __GNUC__ >= 3
  22 @PRAGMA_SYSTEM_HEADER@
  23 #endif
  24 @PRAGMA_COLUMNS@
  25
  26 #if defined _GL_SYS_TIME_H
  27
  28 /* Simply delegate to the system's header, without adding anything.  */
  29 # if @HAVE_SYS_TIME_H@
  30 #  @INCLUDE_NEXT@ @NEXT_SYS_TIME_H@
  31 # endif
  32
  33 #else
  34
  35 # define _GL_SYS_TIME_H
  36
  37 # if @HAVE_SYS_TIME_H@
  38 #  @INCLUDE_NEXT@ @NEXT_SYS_TIME_H@
  39 # else
  40 #  include <time.h>
  41 # endif
  42
  43 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
  44
  45 /* The definition of _GL_ARG_NONNULL is copied here.  */
  46
  47 /* The definition of _GL_WARN_ON_USE is copied here.  */
  48
  49 # ifdef __cplusplus
  50 extern "C" {
  51 # endif
  52
  53 # if ! @HAVE_STRUCT_TIMEVAL@
  54 struct timeval
  55 {
  56   time_t tv_sec;
  57   long int tv_usec;
  58 };
  59 # endif
  60
  61 # ifdef __cplusplus
  62 }
  63 # endif
  64
  65 # if @GNULIB_GETTIMEOFDAY@
  66 #  if @REPLACE_GETTIMEOFDAY@
  67 #   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  68 #    undef gettimeofday
  69 #    define gettimeofday rpl_gettimeofday
  70 #   endif
  71 _GL_FUNCDECL_RPL (gettimeofday, int,
  72                   (struct timeval *restrict, void *restrict)
  73                   _GL_ARG_NONNULL ((1)));
  74 _GL_CXXALIAS_RPL (gettimeofday, int,
  75                   (struct timeval *restrict, void *restrict));
  76 #  else
  77 #   if !@HAVE_GETTIMEOFDAY@
  78 _GL_FUNCDECL_SYS (gettimeofday, int,
  79                   (struct timeval *restrict, void *restrict)
  80                   _GL_ARG_NONNULL ((1)));
  81 #   endif
  82 /* Need to cast, because on glibc systems, by default, the second argument is
  83                                                   struct timezone *.  */
  84 _GL_CXXALIAS_SYS_CAST (gettimeofday, int,
  85                        (struct timeval *restrict, void *restrict));
  86 #  endif
  87 _GL_CXXALIASWARN (gettimeofday);
  88 # elif defined GNULIB_POSIXCHECK
  89 #  undef gettimeofday
  90 #  if HAVE_RAW_DECL_GETTIMEOFDAY
  91 _GL_WARN_ON_USE (gettimeofday, "gettimeofday is unportable - "
  92                  "use gnulib module gettimeofday for portability");
  93 #  endif
  94 # endif
  95
  96 #endif /* _GL_SYS_TIME_H */