1 /* Substitute for <sys/select.h>.
2 Copyright (C) 2007-2012 Free Software Foundation, Inc.
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 2, or (at your option)
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.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software Foundation,
16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
19 @PRAGMA_SYSTEM_HEADER@
23 /* On OSF/1, <sys/types.h> and <sys/time.h> include <sys/select.h>.
24 Simply delegate to the system's header in this case. */
25 #if @HAVE_SYS_SELECT_H@ && defined __osf__ && (defined _SYS_TYPES_H_ && !defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TYPES_H) && defined _OSF_SOURCE
27 # define _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TYPES_H
28 # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@
30 #elif @HAVE_SYS_SELECT_H@ && defined __osf__ && (defined _SYS_TIME_H_ && !defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H) && defined _OSF_SOURCE
32 # define _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H
33 # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@
35 /* On IRIX 6.5, <sys/timespec.h> includes <sys/types.h>, which includes
36 <sys/bsd_types.h>, which includes <sys/select.h>. At this point we cannot
37 include <signal.h>, because that includes <internal/signal_core.h>, which
38 gives a syntax error because <sys/timespec.h> has not been completely
39 processed. Simply delegate to the system's header in this case. */
40 #elif @HAVE_SYS_SELECT_H@ && defined __sgi && (defined _SYS_BSD_TYPES_H && !defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_BSD_TYPES_H)
42 # define _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_BSD_TYPES_H
43 # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@
45 /* On OpenBSD 5.0, <pthread.h> includes <sys/types.h>, which includes
46 <sys/select.h>. At this point we cannot include <signal.h>, because that
47 includes gnulib's pthread.h override, which gives a syntax error because
48 /usr/include/pthread.h has not been completely processed. Simply delegate
49 to the system's header in this case. */
50 #elif @HAVE_SYS_SELECT_H@ && defined __OpenBSD__ && (defined _PTHREAD_H_ && !defined PTHREAD_MUTEX_INITIALIZER)
52 # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@
56 #ifndef _@GUARD_PREFIX@_SYS_SELECT_H
58 /* On many platforms, <sys/select.h> assumes prior inclusion of
59 <sys/types.h>. Also, mingw defines sigset_t there, instead of
60 in <signal.h> where it belongs. */
61 #include <sys/types.h>
63 #if @HAVE_SYS_SELECT_H@
65 /* On OSF/1 4.0, <sys/select.h> provides only a forward declaration
66 of 'struct timeval', and no definition of this type.
67 Also, MacOS X, AIX, HP-UX, IRIX, Solaris, Interix declare select()
69 But avoid namespace pollution on glibc systems. */
71 # include <sys/time.h>
74 /* On AIX 7 and Solaris 10, <sys/select.h> provides an FD_ZERO implementation
75 that relies on memset(), but without including <string.h>.
76 But in any case avoid namespace pollution on glibc systems. */
77 # if (defined __OpenBSD__ || defined _AIX || defined __sun || defined __osf__ || defined __BEOS__) \
78 && ! defined __GLIBC__
82 /* The include_next requires a split double-inclusion guard. */
83 # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@
87 /* Get definition of 'sigset_t'.
88 But avoid namespace pollution on glibc systems.
89 Do this after the include_next (for the sake of OpenBSD 5.0) but before
90 the split double-inclusion guard (for the sake of Solaris). */
91 #if !(defined __GLIBC__ && !defined __UCLIBC__)
95 #ifndef _@GUARD_PREFIX@_SYS_SELECT_H
96 #define _@GUARD_PREFIX@_SYS_SELECT_H
98 #if !@HAVE_SYS_SELECT_H@
99 /* A platform that lacks <sys/select.h>. */
100 /* Get the 'struct timeval' and 'fd_set' types and the FD_* macros
101 on most platforms. */
102 # include <sys/time.h>
103 /* On HP-UX 11, <sys/time.h> provides an FD_ZERO implementation
104 that relies on memset(), but without including <string.h>. */
108 /* On native Windows platforms:
109 Get the 'fd_set' type.
110 Get the close() declaration before we override it. */
111 # if @HAVE_WINSOCK2_H@
112 # if !defined _GL_INCLUDING_WINSOCK2_H
113 # define _GL_INCLUDING_WINSOCK2_H
114 # include <winsock2.h>
115 # undef _GL_INCLUDING_WINSOCK2_H
121 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
123 /* The definition of _GL_WARN_ON_USE is copied here. */
126 /* Fix some definitions from <winsock2.h>. */
128 #if @HAVE_WINSOCK2_H@
130 # if !GNULIB_defined_rpl_fd_isset
132 /* Re-define FD_ISSET to avoid a WSA call while we are not using
135 rpl_fd_isset (SOCKET fd, fd_set * set)
141 for (i = 0; i < set->fd_count; i++)
142 if (set->fd_array[i] == fd)
148 # define GNULIB_defined_rpl_fd_isset 1
152 # define FD_ISSET(fd, set) rpl_fd_isset(fd, set)
156 /* Hide some function declarations from <winsock2.h>. */
158 #if @HAVE_WINSOCK2_H@
159 # if !defined _@GUARD_PREFIX@_UNISTD_H
160 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
162 # define close close_used_without_including_unistd_h
164 _GL_WARN_ON_USE (close,
165 "close() used without including <unistd.h>");
167 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
169 # define gethostname gethostname_used_without_including_unistd_h
171 _GL_WARN_ON_USE (gethostname,
172 "gethostname() used without including <unistd.h>");
175 # if !defined _@GUARD_PREFIX@_SYS_SOCKET_H
176 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
178 # define socket socket_used_without_including_sys_socket_h
180 # define connect connect_used_without_including_sys_socket_h
182 # define accept accept_used_without_including_sys_socket_h
184 # define bind bind_used_without_including_sys_socket_h
186 # define getpeername getpeername_used_without_including_sys_socket_h
188 # define getsockname getsockname_used_without_including_sys_socket_h
190 # define getsockopt getsockopt_used_without_including_sys_socket_h
192 # define listen listen_used_without_including_sys_socket_h
194 # define recv recv_used_without_including_sys_socket_h
196 # define send send_used_without_including_sys_socket_h
198 # define recvfrom recvfrom_used_without_including_sys_socket_h
200 # define sendto sendto_used_without_including_sys_socket_h
202 # define setsockopt setsockopt_used_without_including_sys_socket_h
204 # define shutdown shutdown_used_without_including_sys_socket_h
206 _GL_WARN_ON_USE (socket,
207 "socket() used without including <sys/socket.h>");
208 _GL_WARN_ON_USE (connect,
209 "connect() used without including <sys/socket.h>");
210 _GL_WARN_ON_USE (accept,
211 "accept() used without including <sys/socket.h>");
212 _GL_WARN_ON_USE (bind,
213 "bind() used without including <sys/socket.h>");
214 _GL_WARN_ON_USE (getpeername,
215 "getpeername() used without including <sys/socket.h>");
216 _GL_WARN_ON_USE (getsockname,
217 "getsockname() used without including <sys/socket.h>");
218 _GL_WARN_ON_USE (getsockopt,
219 "getsockopt() used without including <sys/socket.h>");
220 _GL_WARN_ON_USE (listen,
221 "listen() used without including <sys/socket.h>");
222 _GL_WARN_ON_USE (recv,
223 "recv() used without including <sys/socket.h>");
224 _GL_WARN_ON_USE (send,
225 "send() used without including <sys/socket.h>");
226 _GL_WARN_ON_USE (recvfrom,
227 "recvfrom() used without including <sys/socket.h>");
228 _GL_WARN_ON_USE (sendto,
229 "sendto() used without including <sys/socket.h>");
230 _GL_WARN_ON_USE (setsockopt,
231 "setsockopt() used without including <sys/socket.h>");
232 _GL_WARN_ON_USE (shutdown,
233 "shutdown() used without including <sys/socket.h>");
240 # if @REPLACE_PSELECT@
241 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
243 # define pselect rpl_pselect
245 _GL_FUNCDECL_RPL (pselect, int,
246 (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
247 struct timespec const *restrict, const sigset_t *restrict));
248 _GL_CXXALIAS_RPL (pselect, int,
249 (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
250 struct timespec const *restrict, const sigset_t *restrict));
253 _GL_FUNCDECL_SYS (pselect, int,
254 (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
255 struct timespec const *restrict, const sigset_t *restrict));
257 _GL_CXXALIAS_SYS (pselect, int,
258 (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
259 struct timespec const *restrict, const sigset_t *restrict));
261 _GL_CXXALIASWARN (pselect);
262 #elif defined GNULIB_POSIXCHECK
264 # if HAVE_RAW_DECL_PSELECT
265 _GL_WARN_ON_USE (pselect, "pselect is not portable - "
266 "use gnulib module pselect for portability");
271 # if @REPLACE_SELECT@
272 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
274 # define select rpl_select
276 _GL_FUNCDECL_RPL (select, int,
277 (int, fd_set *, fd_set *, fd_set *, struct timeval *));
278 _GL_CXXALIAS_RPL (select, int,
279 (int, fd_set *, fd_set *, fd_set *, struct timeval *));
281 _GL_CXXALIAS_SYS (select, int,
282 (int, fd_set *, fd_set *, fd_set *, struct timeval *));
284 _GL_CXXALIASWARN (select);
285 #elif @HAVE_WINSOCK2_H@
287 # define select select_used_without_requesting_gnulib_module_select
288 #elif defined GNULIB_POSIXCHECK
290 # if HAVE_RAW_DECL_SELECT
291 _GL_WARN_ON_USE (select, "select is not always POSIX compliant - "
292 "use gnulib module select for portability");
297 #endif /* _@GUARD_PREFIX@_SYS_SELECT_H */
298 #endif /* _@GUARD_PREFIX@_SYS_SELECT_H */