code.delx.au - gnu-emacs/blob - lib/sys_time.in.h

   1 /* Provide a more complete sys/time.h.
   2
   3    Copyright (C) 2007-2013 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, see <http://www.gnu.org/licenses/>.  */
  17
  18 /* Written by Paul Eggert.  */
  19
  20 #ifndef _@GUARD_PREFIX@_SYS_TIME_H
  21
  22 #if __GNUC__ >= 3
  23 @PRAGMA_SYSTEM_HEADER@
  24 #endif
  25 @PRAGMA_COLUMNS@
  26
  27 /* The include_next requires a split double-inclusion guard.  */
  28 #if @HAVE_SYS_TIME_H@
  29 # @INCLUDE_NEXT@ @NEXT_SYS_TIME_H@
  30 #endif
  31
  32 #ifndef _@GUARD_PREFIX@_SYS_TIME_H
  33 #define _@GUARD_PREFIX@_SYS_TIME_H
  34
  35 #if ! @HAVE_SYS_TIME_H@
  36 # include <time.h>
  37 #endif
  38
  39 /* On native Windows with MSVC, get the 'struct timeval' type.
  40    Also, on native Windows with a 64-bit time_t, where we are overriding the
  41    'struct timeval' type, get all declarations of system functions whose
  42    signature contains 'struct timeval'.  */
  43 #if (defined _MSC_VER || @REPLACE_STRUCT_TIMEVAL@) && @HAVE_WINSOCK2_H@ && !defined _GL_INCLUDING_WINSOCK2_H
  44 # define _GL_INCLUDING_WINSOCK2_H
  45 # include <winsock2.h>
  46 # undef _GL_INCLUDING_WINSOCK2_H
  47 #endif
  48
  49 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
  50
  51 /* The definition of _GL_ARG_NONNULL is copied here.  */
  52
  53 /* The definition of _GL_WARN_ON_USE is copied here.  */
  54
  55 #ifdef __cplusplus
  56 extern "C" {
  57 #endif
  58
  59 #if !@HAVE_STRUCT_TIMEVAL@ || @REPLACE_STRUCT_TIMEVAL@
  60
  61 # if @REPLACE_STRUCT_TIMEVAL@
  62 #  define timeval rpl_timeval
  63 # endif
  64
  65 # if !GNULIB_defined_struct_timeval
  66 struct timeval
  67 {
  68   time_t tv_sec;
  69   long int tv_usec;
  70 };
  71 #  define GNULIB_defined_struct_timeval 1
  72 # endif
  73
  74 #endif
  75
  76 #ifdef __cplusplus
  77 }
  78 #endif
  79
  80 #if @GNULIB_GETTIMEOFDAY@
  81 # if @REPLACE_GETTIMEOFDAY@
  82 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  83 #   undef gettimeofday
  84 #   define gettimeofday rpl_gettimeofday
  85 #  endif
  86 _GL_FUNCDECL_RPL (gettimeofday, int,
  87                   (struct timeval *restrict, void *restrict)
  88                   _GL_ARG_NONNULL ((1)));
  89 _GL_CXXALIAS_RPL (gettimeofday, int,
  90                   (struct timeval *restrict, void *restrict));
  91 # else
  92 #  if !@HAVE_GETTIMEOFDAY@
  93 _GL_FUNCDECL_SYS (gettimeofday, int,
  94                   (struct timeval *restrict, void *restrict)
  95                   _GL_ARG_NONNULL ((1)));
  96 #  endif
  97 /* Need to cast, because on glibc systems, by default, the second argument is
  98                                                   struct timezone *.  */
  99 _GL_CXXALIAS_SYS_CAST (gettimeofday, int,
 100                        (struct timeval *restrict, void *restrict));
 101 # endif
 102 _GL_CXXALIASWARN (gettimeofday);
 103 #elif defined GNULIB_POSIXCHECK
 104 # undef gettimeofday
 105 # if HAVE_RAW_DECL_GETTIMEOFDAY
 106 _GL_WARN_ON_USE (gettimeofday, "gettimeofday is unportable - "
 107                  "use gnulib module gettimeofday for portability");
 108 # endif
 109 #endif
 110
 111 /* Hide some function declarations from <winsock2.h>.  */
 112
 113 #if defined _MSC_VER && @HAVE_WINSOCK2_H@
 114 # if !defined _@GUARD_PREFIX@_UNISTD_H
 115 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 116 #   undef close
 117 #   define close close_used_without_including_unistd_h
 118 #  else
 119      _GL_WARN_ON_USE (close,
 120                       "close() used without including <unistd.h>");
 121 #  endif
 122 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 123 #   undef gethostname
 124 #   define gethostname gethostname_used_without_including_unistd_h
 125 #  else
 126      _GL_WARN_ON_USE (gethostname,
 127                       "gethostname() used without including <unistd.h>");
 128 #  endif
 129 # endif
 130 # if !defined _@GUARD_PREFIX@_SYS_SOCKET_H
 131 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 132 #   undef socket
 133 #   define socket              socket_used_without_including_sys_socket_h
 134 #   undef connect
 135 #   define connect             connect_used_without_including_sys_socket_h
 136 #   undef accept
 137 #   define accept              accept_used_without_including_sys_socket_h
 138 #   undef bind
 139 #   define bind                bind_used_without_including_sys_socket_h
 140 #   undef getpeername
 141 #   define getpeername         getpeername_used_without_including_sys_socket_h
 142 #   undef getsockname
 143 #   define getsockname         getsockname_used_without_including_sys_socket_h
 144 #   undef getsockopt
 145 #   define getsockopt          getsockopt_used_without_including_sys_socket_h
 146 #   undef listen
 147 #   define listen              listen_used_without_including_sys_socket_h
 148 #   undef recv
 149 #   define recv                recv_used_without_including_sys_socket_h
 150 #   undef send
 151 #   define send                send_used_without_including_sys_socket_h
 152 #   undef recvfrom
 153 #   define recvfrom            recvfrom_used_without_including_sys_socket_h
 154 #   undef sendto
 155 #   define sendto              sendto_used_without_including_sys_socket_h
 156 #   undef setsockopt
 157 #   define setsockopt          setsockopt_used_without_including_sys_socket_h
 158 #   undef shutdown
 159 #   define shutdown            shutdown_used_without_including_sys_socket_h
 160 #  else
 161      _GL_WARN_ON_USE (socket,
 162                       "socket() used without including <sys/socket.h>");
 163      _GL_WARN_ON_USE (connect,
 164                       "connect() used without including <sys/socket.h>");
 165      _GL_WARN_ON_USE (accept,
 166                       "accept() used without including <sys/socket.h>");
 167      _GL_WARN_ON_USE (bind,
 168                       "bind() used without including <sys/socket.h>");
 169      _GL_WARN_ON_USE (getpeername,
 170                       "getpeername() used without including <sys/socket.h>");
 171      _GL_WARN_ON_USE (getsockname,
 172                       "getsockname() used without including <sys/socket.h>");
 173      _GL_WARN_ON_USE (getsockopt,
 174                       "getsockopt() used without including <sys/socket.h>");
 175      _GL_WARN_ON_USE (listen,
 176                       "listen() used without including <sys/socket.h>");
 177      _GL_WARN_ON_USE (recv,
 178                       "recv() used without including <sys/socket.h>");
 179      _GL_WARN_ON_USE (send,
 180                       "send() used without including <sys/socket.h>");
 181      _GL_WARN_ON_USE (recvfrom,
 182                       "recvfrom() used without including <sys/socket.h>");
 183      _GL_WARN_ON_USE (sendto,
 184                       "sendto() used without including <sys/socket.h>");
 185      _GL_WARN_ON_USE (setsockopt,
 186                       "setsockopt() used without including <sys/socket.h>");
 187      _GL_WARN_ON_USE (shutdown,
 188                       "shutdown() used without including <sys/socket.h>");
 189 #  endif
 190 # endif
 191 # if !defined _@GUARD_PREFIX@_SYS_SELECT_H
 192 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 193 #   undef select
 194 #   define select select_used_without_including_sys_select_h
 195 #  else
 196      _GL_WARN_ON_USE (select,
 197                       "select() used without including <sys/select.h>");
 198 #  endif
 199 # endif
 200 #endif
 201
 202 #endif /* _@GUARD_PREFIX@_SYS_TIME_H */
 203 #endif /* _@GUARD_PREFIX@_SYS_TIME_H */