1 /* Provide a more complete sys/time.h. 2 3 Copyright (C) 2007-2021 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 Lesser General Public License as published by 7 the Free Software Foundation; either version 2, 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 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public License 16 along with this program; if not, see <https://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 and on many BSDish systems, <sys/time.h> includes itself 28 recursively via <sys/select.h>. 29 Simply delegate to the system's header in this case; it is a no-op. 30 Without this extra ifdef, the C++ gettimeofday declaration below 31 would be a forward declaration in gnulib's nested <sys/time.h>. */ 32 #if defined _CYGWIN_SYS_TIME_H || defined _SYS_TIME_H || defined _SYS_TIME_H_ 33 # @INCLUDE_NEXT@ @NEXT_SYS_TIME_H@ 34 #else 35 36 /* The include_next requires a split double-inclusion guard. */ 37 #if @HAVE_SYS_TIME_H@ 38 # @INCLUDE_NEXT@ @NEXT_SYS_TIME_H@ 39 #endif 40 41 #ifndef _@GUARD_PREFIX@_SYS_TIME_H 42 #define _@GUARD_PREFIX@_SYS_TIME_H 43 44 #if ! @HAVE_SYS_TIME_H@ 45 # include <time.h> 46 #endif 47 48 /* On native Windows with MSVC, get the 'struct timeval' type. 49 Also, on native Windows with a 64-bit time_t, where we are overriding the 50 'struct timeval' type, get all declarations of system functions whose 51 signature contains 'struct timeval'. */ 52 #if (defined _MSC_VER || @REPLACE_STRUCT_TIMEVAL@) && @HAVE_WINSOCK2_H@ && !defined _GL_INCLUDING_WINSOCK2_H 53 # define _GL_INCLUDING_WINSOCK2_H 54 # include <winsock2.h> 55 # undef _GL_INCLUDING_WINSOCK2_H 56 #endif 57 58 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ 59 60 /* The definition of _GL_ARG_NONNULL is copied here. */ 61 62 /* The definition of _GL_WARN_ON_USE is copied here. */ 63 64 #ifdef __cplusplus 65 extern "C" { 66 #endif 67 68 #if !@HAVE_STRUCT_TIMEVAL@ || @REPLACE_STRUCT_TIMEVAL@ 69 70 # if @REPLACE_STRUCT_TIMEVAL@ 71 # define timeval rpl_timeval 72 # endif 73 74 # if !GNULIB_defined_struct_timeval 75 struct timeval 76 { 77 time_t tv_sec; 78 long int tv_usec; 79 }; 80 # define GNULIB_defined_struct_timeval 1 81 # endif 82 83 #endif 84 85 #ifdef __cplusplus 86 } 87 #endif 88 89 #if @GNULIB_GETTIMEOFDAY@ 90 # if @REPLACE_GETTIMEOFDAY@ 91 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 92 # undef gettimeofday 93 # define gettimeofday rpl_gettimeofday 94 # endif 95 _GL_FUNCDECL_RPL (gettimeofday, int, 96 (struct timeval *restrict, void *restrict) 97 _GL_ARG_NONNULL ((1))); 98 _GL_CXXALIAS_RPL (gettimeofday, int, 99 (struct timeval *restrict, void *restrict)); 100 # else 101 # if !@HAVE_GETTIMEOFDAY@ 102 _GL_FUNCDECL_SYS (gettimeofday, int, 103 (struct timeval *restrict, void *restrict) 104 _GL_ARG_NONNULL ((1))); 105 # endif 106 /* Need to cast, because on glibc systems, by default, the second argument is 107 struct timezone *. */ 108 _GL_CXXALIAS_SYS_CAST (gettimeofday, int, 109 (struct timeval *restrict, void *restrict)); 110 # endif 111 _GL_CXXALIASWARN (gettimeofday); 112 # if defined __cplusplus && defined GNULIB_NAMESPACE 113 namespace GNULIB_NAMESPACE { 114 typedef ::timeval 115 # undef timeval 116 timeval; 117 # if @REPLACE_STRUCT_TIMEVAL@ 118 # define timeval rpl_timeval 119 typedef ::timeval timeval; 120 # endif 121 } 122 # endif 123 #elif defined GNULIB_POSIXCHECK 124 # undef gettimeofday 125 # if HAVE_RAW_DECL_GETTIMEOFDAY 126 _GL_WARN_ON_USE (gettimeofday, "gettimeofday is unportable - " 127 "use gnulib module gettimeofday for portability"); 128 # endif 129 #endif 130 131 /* Hide some function declarations from <winsock2.h>. */ 132 133 #if defined _MSC_VER && @HAVE_WINSOCK2_H@ 134 # if !defined _@GUARD_PREFIX@_UNISTD_H 135 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 136 # undef close 137 # define close close_used_without_including_unistd_h 138 # elif !defined __clang__ 139 _GL_WARN_ON_USE (close, 140 "close() used without including <unistd.h>"); 141 # endif 142 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 143 # undef gethostname 144 # define gethostname gethostname_used_without_including_unistd_h 145 # else 146 _GL_WARN_ON_USE (gethostname, 147 "gethostname() used without including <unistd.h>"); 148 # endif 149 # endif 150 # if !defined _@GUARD_PREFIX@_SYS_SOCKET_H 151 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 152 # undef socket 153 # define socket socket_used_without_including_sys_socket_h 154 # undef connect 155 # define connect connect_used_without_including_sys_socket_h 156 # undef accept 157 # define accept accept_used_without_including_sys_socket_h 158 # undef bind 159 # define bind bind_used_without_including_sys_socket_h 160 # undef getpeername 161 # define getpeername getpeername_used_without_including_sys_socket_h 162 # undef getsockname 163 # define getsockname getsockname_used_without_including_sys_socket_h 164 # undef getsockopt 165 # define getsockopt getsockopt_used_without_including_sys_socket_h 166 # undef listen 167 # define listen listen_used_without_including_sys_socket_h 168 # undef recv 169 # define recv recv_used_without_including_sys_socket_h 170 # undef send 171 # define send send_used_without_including_sys_socket_h 172 # undef recvfrom 173 # define recvfrom recvfrom_used_without_including_sys_socket_h 174 # undef sendto 175 # define sendto sendto_used_without_including_sys_socket_h 176 # undef setsockopt 177 # define setsockopt setsockopt_used_without_including_sys_socket_h 178 # undef shutdown 179 # define shutdown shutdown_used_without_including_sys_socket_h 180 # else 181 _GL_WARN_ON_USE (socket, 182 "socket() used without including <sys/socket.h>"); 183 _GL_WARN_ON_USE (connect, 184 "connect() used without including <sys/socket.h>"); 185 _GL_WARN_ON_USE (accept, 186 "accept() used without including <sys/socket.h>"); 187 _GL_WARN_ON_USE (bind, 188 "bind() used without including <sys/socket.h>"); 189 _GL_WARN_ON_USE (getpeername, 190 "getpeername() used without including <sys/socket.h>"); 191 _GL_WARN_ON_USE (getsockname, 192 "getsockname() used without including <sys/socket.h>"); 193 _GL_WARN_ON_USE (getsockopt, 194 "getsockopt() used without including <sys/socket.h>"); 195 _GL_WARN_ON_USE (listen, 196 "listen() used without including <sys/socket.h>"); 197 _GL_WARN_ON_USE (recv, 198 "recv() used without including <sys/socket.h>"); 199 _GL_WARN_ON_USE (send, 200 "send() used without including <sys/socket.h>"); 201 _GL_WARN_ON_USE (recvfrom, 202 "recvfrom() used without including <sys/socket.h>"); 203 _GL_WARN_ON_USE (sendto, 204 "sendto() used without including <sys/socket.h>"); 205 _GL_WARN_ON_USE (setsockopt, 206 "setsockopt() used without including <sys/socket.h>"); 207 _GL_WARN_ON_USE (shutdown, 208 "shutdown() used without including <sys/socket.h>"); 209 # endif 210 # endif 211 # if !defined _@GUARD_PREFIX@_SYS_SELECT_H 212 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 213 # undef select 214 # define select select_used_without_including_sys_select_h 215 # else 216 _GL_WARN_ON_USE (select, 217 "select() used without including <sys/select.h>"); 218 # endif 219 # endif 220 #endif 221 222 #endif /* _@GUARD_PREFIX@_SYS_TIME_H */ 223 #endif /* _CYGWIN_SYS_TIME_H */ 224 #endif /* _@GUARD_PREFIX@_SYS_TIME_H */ 225