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@
37 #ifndef _@GUARD_PREFIX@_SYS_SELECT_H
39 /* On many platforms, <sys/select.h> assumes prior inclusion of
40 <sys/types.h>. Also, mingw defines sigset_t there, instead of
41 in <signal.h> where it belongs. */
42 #include <sys/types.h>
44 /* Get definition of 'sigset_t'.
45 But avoid namespace pollution on glibc systems. */
46 #if !(defined __GLIBC__ && !defined __UCLIBC__)
50 #if @HAVE_SYS_SELECT_H@
52 /* On OSF/1 4.0, <sys/select.h> provides only a forward declaration
53 of 'struct timeval', and no definition of this type.
54 Also, MacOS X, AIX, HP-UX, IRIX, Solaris, Interix declare select()
56 But avoid namespace pollution on glibc systems. */
58 # include <sys/time.h>
61 /* On AIX 7 and Solaris 10, <sys/select.h> provides an FD_ZERO implementation
62 that relies on memset(), but without including <string.h>.
63 But in any case avoid namespace pollution on glibc systems. */
64 # if (defined __OpenBSD__ || defined _AIX || defined __sun || defined __osf__ || defined __BEOS__) \
65 && ! defined __GLIBC__
69 /* The include_next requires a split double-inclusion guard. */
70 # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@
74 #ifndef _@GUARD_PREFIX@_SYS_SELECT_H
75 #define _@GUARD_PREFIX@_SYS_SELECT_H
77 #if !@HAVE_SYS_SELECT_H@
78 /* A platform that lacks <sys/select.h>. */
79 /* Get the 'struct timeval' and 'fd_set' types and the FD_* macros
81 # include <sys/time.h>
82 /* On HP-UX 11, <sys/time.h> provides an FD_ZERO implementation
83 that relies on memset(), but without including <string.h>. */
87 /* On native Windows platforms:
88 Get the 'fd_set' type. Also, gnulib's <sys/socket.h> redefines select
89 so as to hide the declaration from <winsock2.h>. */
90 # if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
91 # include <sys/socket.h>
95 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
97 /* The definition of _GL_WARN_ON_USE is copied here. */
101 # if @REPLACE_PSELECT@
102 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
104 # define pselect rpl_pselect
106 _GL_FUNCDECL_RPL (pselect, int,
107 (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
108 struct timespec const *restrict, const sigset_t *restrict));
109 _GL_CXXALIAS_RPL (pselect, int,
110 (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
111 struct timespec const *restrict, const sigset_t *restrict));
114 _GL_FUNCDECL_SYS (pselect, int,
115 (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
116 struct timespec const *restrict, const sigset_t *restrict));
118 _GL_CXXALIAS_SYS (pselect, int,
119 (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
120 struct timespec const *restrict, const sigset_t *restrict));
122 _GL_CXXALIASWARN (pselect);
123 #elif defined GNULIB_POSIXCHECK
125 # if HAVE_RAW_DECL_PSELECT
126 _GL_WARN_ON_USE (pselect, "pselect is not portable - "
127 "use gnulib module pselect for portability");
132 # if @REPLACE_SELECT@
133 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
135 # define select rpl_select
137 _GL_FUNCDECL_RPL (select, int,
138 (int, fd_set *, fd_set *, fd_set *, struct timeval *));
139 _GL_CXXALIAS_RPL (select, int,
140 (int, fd_set *, fd_set *, fd_set *, struct timeval *));
142 _GL_CXXALIAS_SYS (select, int,
143 (int, fd_set *, fd_set *, fd_set *, struct timeval *));
145 _GL_CXXALIASWARN (select);
146 #elif @HAVE_WINSOCK2_H@
148 # define select select_used_without_requesting_gnulib_module_select
149 #elif defined GNULIB_POSIXCHECK
151 # if HAVE_RAW_DECL_SELECT
152 _GL_WARN_ON_USE (select, "select is not always POSIX compliant - "
153 "use gnulib module select for portability");
158 #endif /* _@GUARD_PREFIX@_SYS_SELECT_H */
159 #endif /* _@GUARD_PREFIX@_SYS_SELECT_H */