| 1 | /* Substitute for <sys/select.h>. |
| 2 | Copyright (C) 2007-2014 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 3, 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 <http://www.gnu.org/licenses/>. */ |
| 16 | |
| 17 | # if __GNUC__ >= 3 |
| 18 | @PRAGMA_SYSTEM_HEADER@ |
| 19 | # endif |
| 20 | @PRAGMA_COLUMNS@ |
| 21 | |
| 22 | /* On OSF/1 and Solaris 2.6, <sys/types.h> and <sys/time.h> |
| 23 | both include <sys/select.h>. |
| 24 | On Cygwin, <sys/time.h> includes <sys/select.h>. |
| 25 | Simply delegate to the system's header in this case. */ |
| 26 | #if (@HAVE_SYS_SELECT_H@ \ |
| 27 | && ((defined __osf__ && defined _SYS_TYPES_H_ \ |
| 28 | && !defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H \ |
| 29 | && defined _OSF_SOURCE) \ |
| 30 | || (defined __sun && defined _SYS_TYPES_H \ |
| 31 | && (! (defined _XOPEN_SOURCE || defined _POSIX_C_SOURCE) \ |
| 32 | || defined __EXTENSIONS__)))) |
| 33 | |
| 34 | # define _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TYPES_H |
| 35 | # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@ |
| 36 | |
| 37 | #elif (@HAVE_SYS_SELECT_H@ \ |
| 38 | && (defined _CYGWIN_SYS_TIME_H \ |
| 39 | || (defined __osf__ && defined _SYS_TIME_H_ \ |
| 40 | && !defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H \ |
| 41 | && defined _OSF_SOURCE) \ |
| 42 | || (defined __sun && defined _SYS_TIME_H \ |
| 43 | && (! (defined _XOPEN_SOURCE || defined _POSIX_C_SOURCE) \ |
| 44 | || defined __EXTENSIONS__)))) |
| 45 | |
| 46 | # define _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H |
| 47 | # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@ |
| 48 | |
| 49 | /* On IRIX 6.5, <sys/timespec.h> includes <sys/types.h>, which includes |
| 50 | <sys/bsd_types.h>, which includes <sys/select.h>. At this point we cannot |
| 51 | include <signal.h>, because that includes <internal/signal_core.h>, which |
| 52 | gives a syntax error because <sys/timespec.h> has not been completely |
| 53 | processed. Simply delegate to the system's header in this case. */ |
| 54 | #elif @HAVE_SYS_SELECT_H@ && defined __sgi && (defined _SYS_BSD_TYPES_H && !defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_BSD_TYPES_H) |
| 55 | |
| 56 | # define _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_BSD_TYPES_H |
| 57 | # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@ |
| 58 | |
| 59 | /* On OpenBSD 5.0, <pthread.h> includes <sys/types.h>, which includes |
| 60 | <sys/select.h>. At this point we cannot include <signal.h>, because that |
| 61 | includes gnulib's pthread.h override, which gives a syntax error because |
| 62 | /usr/include/pthread.h has not been completely processed. Simply delegate |
| 63 | to the system's header in this case. */ |
| 64 | #elif @HAVE_SYS_SELECT_H@ && defined __OpenBSD__ && (defined _PTHREAD_H_ && !defined PTHREAD_MUTEX_INITIALIZER) |
| 65 | |
| 66 | # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@ |
| 67 | |
| 68 | #else |
| 69 | |
| 70 | #ifndef _@GUARD_PREFIX@_SYS_SELECT_H |
| 71 | |
| 72 | /* On many platforms, <sys/select.h> assumes prior inclusion of |
| 73 | <sys/types.h>. Also, mingw defines sigset_t there, instead of |
| 74 | in <signal.h> where it belongs. */ |
| 75 | #include <sys/types.h> |
| 76 | |
| 77 | #if @HAVE_SYS_SELECT_H@ |
| 78 | |
| 79 | /* On OSF/1 4.0, <sys/select.h> provides only a forward declaration |
| 80 | of 'struct timeval', and no definition of this type. |
| 81 | Also, Mac OS X, AIX, HP-UX, IRIX, Solaris, Interix declare select() |
| 82 | in <sys/time.h>. |
| 83 | But avoid namespace pollution on glibc systems. */ |
| 84 | # ifndef __GLIBC__ |
| 85 | # include <sys/time.h> |
| 86 | # endif |
| 87 | |
| 88 | /* On AIX 7 and Solaris 10, <sys/select.h> provides an FD_ZERO implementation |
| 89 | that relies on memset(), but without including <string.h>. |
| 90 | But in any case avoid namespace pollution on glibc systems. */ |
| 91 | # if (defined __OpenBSD__ || defined _AIX || defined __sun || defined __osf__ || defined __BEOS__) \ |
| 92 | && ! defined __GLIBC__ |
| 93 | # include <string.h> |
| 94 | # endif |
| 95 | |
| 96 | /* The include_next requires a split double-inclusion guard. */ |
| 97 | # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@ |
| 98 | |
| 99 | #endif |
| 100 | |
| 101 | /* Get definition of 'sigset_t'. |
| 102 | But avoid namespace pollution on glibc systems. |
| 103 | Do this after the include_next (for the sake of OpenBSD 5.0) but before |
| 104 | the split double-inclusion guard (for the sake of Solaris). */ |
| 105 | #if !(defined __GLIBC__ && !defined __UCLIBC__) |
| 106 | # include <signal.h> |
| 107 | #endif |
| 108 | |
| 109 | #ifndef _@GUARD_PREFIX@_SYS_SELECT_H |
| 110 | #define _@GUARD_PREFIX@_SYS_SELECT_H |
| 111 | |
| 112 | #if !@HAVE_SYS_SELECT_H@ |
| 113 | /* A platform that lacks <sys/select.h>. */ |
| 114 | /* Get the 'struct timeval' and 'fd_set' types and the FD_* macros |
| 115 | on most platforms. */ |
| 116 | # include <sys/time.h> |
| 117 | /* On HP-UX 11, <sys/time.h> provides an FD_ZERO implementation |
| 118 | that relies on memset(), but without including <string.h>. */ |
| 119 | # if defined __hpux |
| 120 | # include <string.h> |
| 121 | # endif |
| 122 | /* On native Windows platforms: |
| 123 | Get the 'fd_set' type. |
| 124 | Get the close() declaration before we override it. */ |
| 125 | # if @HAVE_WINSOCK2_H@ |
| 126 | # if !defined _GL_INCLUDING_WINSOCK2_H |
| 127 | # define _GL_INCLUDING_WINSOCK2_H |
| 128 | # include <winsock2.h> |
| 129 | # undef _GL_INCLUDING_WINSOCK2_H |
| 130 | # endif |
| 131 | # include <io.h> |
| 132 | # endif |
| 133 | #endif |
| 134 | |
| 135 | /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ |
| 136 | |
| 137 | /* The definition of _GL_WARN_ON_USE is copied here. */ |
| 138 | |
| 139 | |
| 140 | /* Fix some definitions from <winsock2.h>. */ |
| 141 | |
| 142 | #if @HAVE_WINSOCK2_H@ |
| 143 | |
| 144 | # if !GNULIB_defined_rpl_fd_isset |
| 145 | |
| 146 | /* Re-define FD_ISSET to avoid a WSA call while we are not using |
| 147 | network sockets. */ |
| 148 | static int |
| 149 | rpl_fd_isset (SOCKET fd, fd_set * set) |
| 150 | { |
| 151 | u_int i; |
| 152 | if (set == NULL) |
| 153 | return 0; |
| 154 | |
| 155 | for (i = 0; i < set->fd_count; i++) |
| 156 | if (set->fd_array[i] == fd) |
| 157 | return 1; |
| 158 | |
| 159 | return 0; |
| 160 | } |
| 161 | |
| 162 | # define GNULIB_defined_rpl_fd_isset 1 |
| 163 | # endif |
| 164 | |
| 165 | # undef FD_ISSET |
| 166 | # define FD_ISSET(fd, set) rpl_fd_isset(fd, set) |
| 167 | |
| 168 | #endif |
| 169 | |
| 170 | /* Hide some function declarations from <winsock2.h>. */ |
| 171 | |
| 172 | #if @HAVE_WINSOCK2_H@ |
| 173 | # if !defined _@GUARD_PREFIX@_UNISTD_H |
| 174 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 175 | # undef close |
| 176 | # define close close_used_without_including_unistd_h |
| 177 | # else |
| 178 | _GL_WARN_ON_USE (close, |
| 179 | "close() used without including <unistd.h>"); |
| 180 | # endif |
| 181 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 182 | # undef gethostname |
| 183 | # define gethostname gethostname_used_without_including_unistd_h |
| 184 | # else |
| 185 | _GL_WARN_ON_USE (gethostname, |
| 186 | "gethostname() used without including <unistd.h>"); |
| 187 | # endif |
| 188 | # endif |
| 189 | # if !defined _@GUARD_PREFIX@_SYS_SOCKET_H |
| 190 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 191 | # undef socket |
| 192 | # define socket socket_used_without_including_sys_socket_h |
| 193 | # undef connect |
| 194 | # define connect connect_used_without_including_sys_socket_h |
| 195 | # undef accept |
| 196 | # define accept accept_used_without_including_sys_socket_h |
| 197 | # undef bind |
| 198 | # define bind bind_used_without_including_sys_socket_h |
| 199 | # undef getpeername |
| 200 | # define getpeername getpeername_used_without_including_sys_socket_h |
| 201 | # undef getsockname |
| 202 | # define getsockname getsockname_used_without_including_sys_socket_h |
| 203 | # undef getsockopt |
| 204 | # define getsockopt getsockopt_used_without_including_sys_socket_h |
| 205 | # undef listen |
| 206 | # define listen listen_used_without_including_sys_socket_h |
| 207 | # undef recv |
| 208 | # define recv recv_used_without_including_sys_socket_h |
| 209 | # undef send |
| 210 | # define send send_used_without_including_sys_socket_h |
| 211 | # undef recvfrom |
| 212 | # define recvfrom recvfrom_used_without_including_sys_socket_h |
| 213 | # undef sendto |
| 214 | # define sendto sendto_used_without_including_sys_socket_h |
| 215 | # undef setsockopt |
| 216 | # define setsockopt setsockopt_used_without_including_sys_socket_h |
| 217 | # undef shutdown |
| 218 | # define shutdown shutdown_used_without_including_sys_socket_h |
| 219 | # else |
| 220 | _GL_WARN_ON_USE (socket, |
| 221 | "socket() used without including <sys/socket.h>"); |
| 222 | _GL_WARN_ON_USE (connect, |
| 223 | "connect() used without including <sys/socket.h>"); |
| 224 | _GL_WARN_ON_USE (accept, |
| 225 | "accept() used without including <sys/socket.h>"); |
| 226 | _GL_WARN_ON_USE (bind, |
| 227 | "bind() used without including <sys/socket.h>"); |
| 228 | _GL_WARN_ON_USE (getpeername, |
| 229 | "getpeername() used without including <sys/socket.h>"); |
| 230 | _GL_WARN_ON_USE (getsockname, |
| 231 | "getsockname() used without including <sys/socket.h>"); |
| 232 | _GL_WARN_ON_USE (getsockopt, |
| 233 | "getsockopt() used without including <sys/socket.h>"); |
| 234 | _GL_WARN_ON_USE (listen, |
| 235 | "listen() used without including <sys/socket.h>"); |
| 236 | _GL_WARN_ON_USE (recv, |
| 237 | "recv() used without including <sys/socket.h>"); |
| 238 | _GL_WARN_ON_USE (send, |
| 239 | "send() used without including <sys/socket.h>"); |
| 240 | _GL_WARN_ON_USE (recvfrom, |
| 241 | "recvfrom() used without including <sys/socket.h>"); |
| 242 | _GL_WARN_ON_USE (sendto, |
| 243 | "sendto() used without including <sys/socket.h>"); |
| 244 | _GL_WARN_ON_USE (setsockopt, |
| 245 | "setsockopt() used without including <sys/socket.h>"); |
| 246 | _GL_WARN_ON_USE (shutdown, |
| 247 | "shutdown() used without including <sys/socket.h>"); |
| 248 | # endif |
| 249 | # endif |
| 250 | #endif |
| 251 | |
| 252 | |
| 253 | #if @GNULIB_PSELECT@ |
| 254 | # if @REPLACE_PSELECT@ |
| 255 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 256 | # undef pselect |
| 257 | # define pselect rpl_pselect |
| 258 | # endif |
| 259 | _GL_FUNCDECL_RPL (pselect, int, |
| 260 | (int, fd_set *restrict, fd_set *restrict, fd_set *restrict, |
| 261 | struct timespec const *restrict, const sigset_t *restrict)); |
| 262 | _GL_CXXALIAS_RPL (pselect, int, |
| 263 | (int, fd_set *restrict, fd_set *restrict, fd_set *restrict, |
| 264 | struct timespec const *restrict, const sigset_t *restrict)); |
| 265 | # else |
| 266 | # if !@HAVE_PSELECT@ |
| 267 | _GL_FUNCDECL_SYS (pselect, int, |
| 268 | (int, fd_set *restrict, fd_set *restrict, fd_set *restrict, |
| 269 | struct timespec const *restrict, const sigset_t *restrict)); |
| 270 | # endif |
| 271 | _GL_CXXALIAS_SYS (pselect, int, |
| 272 | (int, fd_set *restrict, fd_set *restrict, fd_set *restrict, |
| 273 | struct timespec const *restrict, const sigset_t *restrict)); |
| 274 | # endif |
| 275 | _GL_CXXALIASWARN (pselect); |
| 276 | #elif defined GNULIB_POSIXCHECK |
| 277 | # undef pselect |
| 278 | # if HAVE_RAW_DECL_PSELECT |
| 279 | _GL_WARN_ON_USE (pselect, "pselect is not portable - " |
| 280 | "use gnulib module pselect for portability"); |
| 281 | # endif |
| 282 | #endif |
| 283 | |
| 284 | #if @GNULIB_SELECT@ |
| 285 | # if @REPLACE_SELECT@ |
| 286 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| 287 | # undef select |
| 288 | # define select rpl_select |
| 289 | # endif |
| 290 | _GL_FUNCDECL_RPL (select, int, |
| 291 | (int, fd_set *, fd_set *, fd_set *, struct timeval *)); |
| 292 | _GL_CXXALIAS_RPL (select, int, |
| 293 | (int, fd_set *, fd_set *, fd_set *, struct timeval *)); |
| 294 | # else |
| 295 | _GL_CXXALIAS_SYS (select, int, |
| 296 | (int, fd_set *, fd_set *, fd_set *, struct timeval *)); |
| 297 | # endif |
| 298 | _GL_CXXALIASWARN (select); |
| 299 | #elif @HAVE_WINSOCK2_H@ |
| 300 | # undef select |
| 301 | # define select select_used_without_requesting_gnulib_module_select |
| 302 | #elif defined GNULIB_POSIXCHECK |
| 303 | # undef select |
| 304 | # if HAVE_RAW_DECL_SELECT |
| 305 | _GL_WARN_ON_USE (select, "select is not always POSIX compliant - " |
| 306 | "use gnulib module select for portability"); |
| 307 | # endif |
| 308 | #endif |
| 309 | |
| 310 | |
| 311 | #endif /* _@GUARD_PREFIX@_SYS_SELECT_H */ |
| 312 | #endif /* _@GUARD_PREFIX@_SYS_SELECT_H */ |
| 313 | #endif /* OSF/1 */ |