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 /* On Cygwin, <sys/time.h> includes itself recursively via <sys/select.h>.
  28    Simply delegate to the system's header in this case; it is a no-op.
  29    Without this extra ifdef, the C++ gettimeofday declaration below
  30    would be a forward declaration in gnulib's nested <sys/time.h>.  */
  31 #ifdef _CYGWIN_SYS_TIME_H
  32 # @INCLUDE_NEXT@ @NEXT_SYS_TIME_H@
  33 #else
  34
  35 /* The include_next requires a split double-inclusion guard.  */
  36 #if @HAVE_SYS_TIME_H@
  37 # @INCLUDE_NEXT@ @NEXT_SYS_TIME_H@
  38 #endif
  39
  40 #ifndef _@GUARD_PREFIX@_SYS_TIME_H
  41 #define _@GUARD_PREFIX@_SYS_TIME_H
  42
  43 #if ! @HAVE_SYS_TIME_H@
  44 # include <time.h>
  45 #endif
  46
  47 /* On native Windows with MSVC, get the 'struct timeval' type.
  48    Also, on native Windows with a 64-bit time_t, where we are overriding the
  49    'struct timeval' type, get all declarations of system functions whose
  50    signature contains 'struct timeval'.  */
  51 #if (defined _MSC_VER || @REPLACE_STRUCT_TIMEVAL@) && @HAVE_WINSOCK2_H@ && !defined _GL_INCLUDING_WINSOCK2_H
  52 # define _GL_INCLUDING_WINSOCK2_H
  53 # include <winsock2.h>
  54 # undef _GL_INCLUDING_WINSOCK2_H
  55 #endif
  56
  57 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
  58
  59 /* The definition of _GL_ARG_NONNULL is copied here.  */
  60
  61 /* The definition of _GL_WARN_ON_USE is copied here.  */
  62
  63 #ifdef __cplusplus
  64 extern "C" {
  65 #endif
  66
  67 #if !@HAVE_STRUCT_TIMEVAL@ || @REPLACE_STRUCT_TIMEVAL@
  68
  69 # if @REPLACE_STRUCT_TIMEVAL@
  70 #  define timeval rpl_timeval
  71 # endif
  72
  73 # if !GNULIB_defined_struct_timeval
  74 struct timeval
  75 {
  76   time_t tv_sec;
  77   long int tv_usec;
  78 };
  79 #  define GNULIB_defined_struct_timeval 1
  80 # endif
  81
  82 #endif
  83
  84 #ifdef __cplusplus
  85 }
  86 #endif
  87
  88 #if @GNULIB_GETTIMEOFDAY@
  89 # if @REPLACE_GETTIMEOFDAY@
  90 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  91 #   undef gettimeofday
  92 #   define gettimeofday rpl_gettimeofday
  93 #  endif
  94 _GL_FUNCDECL_RPL (gettimeofday, int,
  95                   (struct timeval *restrict, void *restrict)
  96                   _GL_ARG_NONNULL ((1)));
  97 _GL_CXXALIAS_RPL (gettimeofday, int,
  98                   (struct timeval *restrict, void *restrict));
  99 # else
 100 #  if !@HAVE_GETTIMEOFDAY@
 101 _GL_FUNCDECL_SYS (gettimeofday, int,
 102                   (struct timeval *restrict, void *restrict)
 103                   _GL_ARG_NONNULL ((1)));
 104 #  endif
 105 /* Need to cast, because on glibc systems, by default, the second argument is
 106                                                   struct timezone *.  */
 107 _GL_CXXALIAS_SYS_CAST (gettimeofday, int,
 108                        (struct timeval *restrict, void *restrict));
 109 # endif
 110 _GL_CXXALIASWARN (gettimeofday);
 111 #elif defined GNULIB_POSIXCHECK
 112 # undef gettimeofday
 113 # if HAVE_RAW_DECL_GETTIMEOFDAY
 114 _GL_WARN_ON_USE (gettimeofday, "gettimeofday is unportable - "
 115                  "use gnulib module gettimeofday for portability");
 116 # endif
 117 #endif
 118
 119 /* Hide some function declarations from <winsock2.h>.  */
 120
 121 #if defined _MSC_VER && @HAVE_WINSOCK2_H@
 122 # if !defined _@GUARD_PREFIX@_UNISTD_H
 123 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 124 #   undef close
 125 #   define close close_used_without_including_unistd_h
 126 #  else
 127      _GL_WARN_ON_USE (close,
 128                       "close() used without including <unistd.h>");
 129 #  endif
 130 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 131 #   undef gethostname
 132 #   define gethostname gethostname_used_without_including_unistd_h
 133 #  else
 134      _GL_WARN_ON_USE (gethostname,
 135                       "gethostname() used without including <unistd.h>");
 136 #  endif
 137 # endif
 138 # if !defined _@GUARD_PREFIX@_SYS_SOCKET_H
 139 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 140 #   undef socket
 141 #   define socket              socket_used_without_including_sys_socket_h
 142 #   undef connect
 143 #   define connect             connect_used_without_including_sys_socket_h
 144 #   undef accept
 145 #   define accept              accept_used_without_including_sys_socket_h
 146 #   undef bind
 147 #   define bind                bind_used_without_including_sys_socket_h
 148 #   undef getpeername
 149 #   define getpeername         getpeername_used_without_including_sys_socket_h
 150 #   undef getsockname
 151 #   define getsockname         getsockname_used_without_including_sys_socket_h
 152 #   undef getsockopt
 153 #   define getsockopt          getsockopt_used_without_including_sys_socket_h
 154 #   undef listen
 155 #   define listen              listen_used_without_including_sys_socket_h
 156 #   undef recv
 157 #   define recv                recv_used_without_including_sys_socket_h
 158 #   undef send
 159 #   define send                send_used_without_including_sys_socket_h
 160 #   undef recvfrom
 161 #   define recvfrom            recvfrom_used_without_including_sys_socket_h
 162 #   undef sendto
 163 #   define sendto              sendto_used_without_including_sys_socket_h
 164 #   undef setsockopt
 165 #   define setsockopt          setsockopt_used_without_including_sys_socket_h
 166 #   undef shutdown
 167 #   define shutdown            shutdown_used_without_including_sys_socket_h
 168 #  else
 169      _GL_WARN_ON_USE (socket,
 170                       "socket() used without including <sys/socket.h>");
 171      _GL_WARN_ON_USE (connect,
 172                       "connect() used without including <sys/socket.h>");
 173      _GL_WARN_ON_USE (accept,
 174                       "accept() used without including <sys/socket.h>");
 175      _GL_WARN_ON_USE (bind,
 176                       "bind() used without including <sys/socket.h>");
 177      _GL_WARN_ON_USE (getpeername,
 178                       "getpeername() used without including <sys/socket.h>");
 179      _GL_WARN_ON_USE (getsockname,
 180                       "getsockname() used without including <sys/socket.h>");
 181      _GL_WARN_ON_USE (getsockopt,
 182                       "getsockopt() used without including <sys/socket.h>");
 183      _GL_WARN_ON_USE (listen,
 184                       "listen() used without including <sys/socket.h>");
 185      _GL_WARN_ON_USE (recv,
 186                       "recv() used without including <sys/socket.h>");
 187      _GL_WARN_ON_USE (send,
 188                       "send() used without including <sys/socket.h>");
 189      _GL_WARN_ON_USE (recvfrom,
 190                       "recvfrom() used without including <sys/socket.h>");
 191      _GL_WARN_ON_USE (sendto,
 192                       "sendto() used without including <sys/socket.h>");
 193      _GL_WARN_ON_USE (setsockopt,
 194                       "setsockopt() used without including <sys/socket.h>");
 195      _GL_WARN_ON_USE (shutdown,
 196                       "shutdown() used without including <sys/socket.h>");
 197 #  endif
 198 # endif
 199 # if !defined _@GUARD_PREFIX@_SYS_SELECT_H
 200 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 201 #   undef select
 202 #   define select select_used_without_including_sys_select_h
 203 #  else
 204      _GL_WARN_ON_USE (select,
 205                       "select() used without including <sys/select.h>");
 206 #  endif
 207 # endif
 208 #endif
 209
 210 #endif /* _@GUARD_PREFIX@_SYS_TIME_H */
 211 #endif /* _CYGWIN_SYS_TIME_H */
 212 #endif /* _@GUARD_PREFIX@_SYS_TIME_H */