1 /* Substitute for <sys/select.h>.
2 Copyright (C) 2007-2011 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@
47 #ifndef _@GUARD_PREFIX@_SYS_SELECT_H
49 /* On many platforms, <sys/select.h> assumes prior inclusion of
50 <sys/types.h>. Also, mingw defines sigset_t there, instead of
51 in <signal.h> where it belongs. */
52 #include <sys/types.h>
54 /* Get definition of 'sigset_t'.
55 But avoid namespace pollution on glibc systems. */
56 #if !(defined __GLIBC__ && !defined __UCLIBC__)
60 #if @HAVE_SYS_SELECT_H@
62 /* On OSF/1 4.0, <sys/select.h> provides only a forward declaration
63 of 'struct timeval', and no definition of this type.
64 Also, MacOS X, AIX, HP-UX, IRIX, Solaris, Interix declare select()
66 But avoid namespace pollution on glibc systems. */
68 # include <sys/time.h>
71 /* On AIX 7 and Solaris 10, <sys/select.h> provides an FD_ZERO implementation
72 that relies on memset(), but without including <string.h>.
73 But in any case avoid namespace pollution on glibc systems. */
74 # if (defined __OpenBSD__ || defined _AIX || defined __sun || defined __osf__ || defined __BEOS__) \
75 && ! defined __GLIBC__
79 /* The include_next requires a split double-inclusion guard. */
80 # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@
84 #ifndef _@GUARD_PREFIX@_SYS_SELECT_H
85 #define _@GUARD_PREFIX@_SYS_SELECT_H
87 #if !@HAVE_SYS_SELECT_H@
88 /* A platform that lacks <sys/select.h>. */
89 /* Get the 'struct timeval' and 'fd_set' types and the FD_* macros
91 # include <sys/time.h>
92 /* On HP-UX 11, <sys/time.h> provides an FD_ZERO implementation
93 that relies on memset(), but without including <string.h>. */
97 /* On native Windows platforms:
98 Get the 'fd_set' type. */
99 # if @HAVE_WINSOCK2_H@ && !defined _GL_INCLUDING_WINSOCK2_H
100 # define _GL_INCLUDING_WINSOCK2_H
101 # include <winsock2.h>
102 # undef _GL_INCLUDING_WINSOCK2_H
106 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
108 /* The definition of _GL_WARN_ON_USE is copied here. */
111 /* Fix some definitions from <winsock2.h>. */
113 #if @HAVE_WINSOCK2_H@
115 # if !GNULIB_defined_rpl_fd_isset
117 /* Re-define FD_ISSET to avoid a WSA call while we are not using
120 rpl_fd_isset (SOCKET fd, fd_set * set)
126 for (i = 0; i < set->fd_count; i++)
127 if (set->fd_array[i] == fd)
133 # define GNULIB_defined_rpl_fd_isset 1
137 # define FD_ISSET(fd, set) rpl_fd_isset(fd, set)
141 /* Hide some function declarations from <winsock2.h>. */
143 #if @HAVE_WINSOCK2_H@
144 # if !defined _@GUARD_PREFIX@_UNISTD_H
145 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
147 # define close close_used_without_including_unistd_h
149 _GL_WARN_ON_USE (close,
150 "close() used without including <unistd.h>");
152 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
154 # define gethostname gethostname_used_without_including_unistd_h
156 _GL_WARN_ON_USE (gethostname,
157 "gethostname() used without including <unistd.h>");
160 # if !defined _@GUARD_PREFIX@_SYS_SOCKET_H
161 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
163 # define socket socket_used_without_including_sys_socket_h
165 # define connect connect_used_without_including_sys_socket_h
167 # define accept accept_used_without_including_sys_socket_h
169 # define bind bind_used_without_including_sys_socket_h
171 # define getpeername getpeername_used_without_including_sys_socket_h
173 # define getsockname getsockname_used_without_including_sys_socket_h
175 # define getsockopt getsockopt_used_without_including_sys_socket_h
177 # define listen listen_used_without_including_sys_socket_h
179 # define recv recv_used_without_including_sys_socket_h
181 # define send send_used_without_including_sys_socket_h
183 # define recvfrom recvfrom_used_without_including_sys_socket_h
185 # define sendto sendto_used_without_including_sys_socket_h
187 # define setsockopt setsockopt_used_without_including_sys_socket_h
189 # define shutdown shutdown_used_without_including_sys_socket_h
191 _GL_WARN_ON_USE (socket,
192 "socket() used without including <sys/socket.h>");
193 _GL_WARN_ON_USE (connect,
194 "connect() used without including <sys/socket.h>");
195 _GL_WARN_ON_USE (accept,
196 "accept() used without including <sys/socket.h>");
197 _GL_WARN_ON_USE (bind,
198 "bind() used without including <sys/socket.h>");
199 _GL_WARN_ON_USE (getpeername,
200 "getpeername() used without including <sys/socket.h>");
201 _GL_WARN_ON_USE (getsockname,
202 "getsockname() used without including <sys/socket.h>");
203 _GL_WARN_ON_USE (getsockopt,
204 "getsockopt() used without including <sys/socket.h>");
205 _GL_WARN_ON_USE (listen,
206 "listen() used without including <sys/socket.h>");
207 _GL_WARN_ON_USE (recv,
208 "recv() used without including <sys/socket.h>");
209 _GL_WARN_ON_USE (send,
210 "send() used without including <sys/socket.h>");
211 _GL_WARN_ON_USE (recvfrom,
212 "recvfrom() used without including <sys/socket.h>");
213 _GL_WARN_ON_USE (sendto,
214 "sendto() used without including <sys/socket.h>");
215 _GL_WARN_ON_USE (setsockopt,
216 "setsockopt() used without including <sys/socket.h>");
217 _GL_WARN_ON_USE (shutdown,
218 "shutdown() used without including <sys/socket.h>");
225 # if @REPLACE_PSELECT@
226 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
228 # define pselect rpl_pselect
230 _GL_FUNCDECL_RPL (pselect, int,
231 (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
232 struct timespec const *restrict, const sigset_t *restrict));
233 _GL_CXXALIAS_RPL (pselect, int,
234 (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
235 struct timespec const *restrict, const sigset_t *restrict));
238 _GL_FUNCDECL_SYS (pselect, int,
239 (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
240 struct timespec const *restrict, const sigset_t *restrict));
242 _GL_CXXALIAS_SYS (pselect, int,
243 (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
244 struct timespec const *restrict, const sigset_t *restrict));
246 _GL_CXXALIASWARN (pselect);
247 #elif defined GNULIB_POSIXCHECK
249 # if HAVE_RAW_DECL_PSELECT
250 _GL_WARN_ON_USE (pselect, "pselect is not portable - "
251 "use gnulib module pselect for portability");
256 # if @REPLACE_SELECT@
257 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
259 # define select rpl_select
261 _GL_FUNCDECL_RPL (select, int,
262 (int, fd_set *, fd_set *, fd_set *, struct timeval *));
263 _GL_CXXALIAS_RPL (select, int,
264 (int, fd_set *, fd_set *, fd_set *, struct timeval *));
266 _GL_CXXALIAS_SYS (select, int,
267 (int, fd_set *, fd_set *, fd_set *, struct timeval *));
269 _GL_CXXALIASWARN (select);
270 #elif @HAVE_WINSOCK2_H@
272 # define select select_used_without_requesting_gnulib_module_select
273 #elif defined GNULIB_POSIXCHECK
275 # if HAVE_RAW_DECL_SELECT
276 _GL_WARN_ON_USE (select, "select is not always POSIX compliant - "
277 "use gnulib module select for portability");
282 #endif /* _@GUARD_PREFIX@_SYS_SELECT_H */
283 #endif /* _@GUARD_PREFIX@_SYS_SELECT_H */