/* Substitute for <sys/select.h>.
- Copyright (C) 2007 Free Software Foundation, Inc.
+ Copyright (C) 2007-2011 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
-#ifndef _GL_SYS_SELECT_H
+# if __GNUC__ >= 3
+@PRAGMA_SYSTEM_HEADER@
+# endif
+@PRAGMA_COLUMNS@
+
+/* On OSF/1, <sys/types.h> and <sys/time.h> include <sys/select.h>.
+ Simply delegate to the system's header in this case. */
+#if @HAVE_SYS_SELECT_H@ && defined __osf__ && (defined _SYS_TYPES_H_ && !defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TYPES_H) && defined _OSF_SOURCE
+
+# define _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TYPES_H
+# @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@
+
+#elif @HAVE_SYS_SELECT_H@ && defined __osf__ && (defined _SYS_TIME_H_ && !defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H) && defined _OSF_SOURCE
+
+# define _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H
+# @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@
+
+#else
+
+#ifndef _@GUARD_PREFIX@_SYS_SELECT_H
#if @HAVE_SYS_SELECT_H@
<sys/types.h>. */
# include <sys/types.h>
+/* On OSF/1 4.0, <sys/select.h> provides only a forward declaration
+ of 'struct timeval', and no definition of this type.
+ Also, MacOS X, AIX, HP-UX, IRIX, Solaris, Interix declare select()
+ in <sys/time.h>.
+ But avoid namespace pollution on glibc systems. */
+# ifndef __GLIBC__
+# include <sys/time.h>
+# endif
+
+/* On AIX 7 and Solaris 10, <sys/select.h> provides an FD_ZERO implementation
+ that relies on memset(), but without including <string.h>.
+ But in any case avoid namespace pollution on glibc systems. */
+# if (defined __OpenBSD__ || defined _AIX || defined __sun || defined __osf__ || defined __BEOS__) \
+ && ! defined __GLIBC__
+# include <string.h>
+# endif
+
/* The include_next requires a split double-inclusion guard. */
# @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@
#endif
-#ifndef _GL_SYS_SELECT_H
-#define _GL_SYS_SELECT_H
+#ifndef _@GUARD_PREFIX@_SYS_SELECT_H
+#define _@GUARD_PREFIX@_SYS_SELECT_H
#if !@HAVE_SYS_SELECT_H@
-
/* A platform that lacks <sys/select.h>. */
+/* Get the 'struct timeval' and 'fd_set' types and the FD_* macros
+ on most platforms. */
+# include <sys/time.h>
+/* On HP-UX 11, <sys/time.h> provides an FD_ZERO implementation
+ that relies on memset(), but without including <string.h>. */
+# if defined __hpux
+# include <string.h>
+# endif
+/* On native Windows platforms:
+ Get the 'fd_set' type. Also, gnulib's <sys/socket.h> redefines select
+ so as to hide the declaration from <winsock2.h>. */
+# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+# include <sys/socket.h>
+# endif
+#endif
+
+/* Get definition of 'sigset_t'.
+ But avoid namespace pollution on glibc systems. */
+#if !(defined __GLIBC__ && !defined __UCLIBC__)
+# include <signal.h>
+#endif
+
+/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
-# include <sys/socket.h>
+/* The definition of _GL_WARN_ON_USE is copied here. */
+
+#if @GNULIB_PSELECT@
+# if @REPLACE_PSELECT@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef pselect
+# define pselect rpl_pselect
+# endif
+_GL_FUNCDECL_RPL (pselect, int,
+ (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
+ struct timespec const *restrict, const sigset_t *restrict));
+_GL_CXXALIAS_RPL (pselect, int,
+ (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
+ struct timespec const *restrict, const sigset_t *restrict));
+# else
+# if !@HAVE_PSELECT@
+_GL_FUNCDECL_SYS (pselect, int,
+ (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
+ struct timespec const *restrict, const sigset_t *restrict));
+# endif
+_GL_CXXALIAS_SYS (pselect, int,
+ (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
+ struct timespec const *restrict, const sigset_t *restrict));
+# endif
+_GL_CXXALIASWARN (pselect);
+#elif defined GNULIB_POSIXCHECK
+# undef pselect
+# if HAVE_RAW_DECL_PSELECT
+_GL_WARN_ON_USE (pselect, "pselect is not portable - "
+ "use gnulib module pselect for portability");
+# endif
+#endif
+
+#if @GNULIB_SELECT@
+# if @REPLACE_SELECT@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef select
+# define select rpl_select
+# endif
+_GL_FUNCDECL_RPL (select, int,
+ (int, fd_set *, fd_set *, fd_set *, struct timeval *));
+_GL_CXXALIAS_RPL (select, int,
+ (int, fd_set *, fd_set *, fd_set *, struct timeval *));
+# else
+_GL_CXXALIAS_SYS (select, int,
+ (int, fd_set *, fd_set *, fd_set *, struct timeval *));
+# endif
+_GL_CXXALIASWARN (select);
+#elif @HAVE_WINSOCK2_H@
+# undef select
+# define select select_used_without_requesting_gnulib_module_select
+#elif defined GNULIB_POSIXCHECK
+# undef select
+# if HAVE_RAW_DECL_SELECT
+_GL_WARN_ON_USE (select, "select is not always POSIX compliant - "
+ "use gnulib module select for portability");
+# endif
#endif
-#endif /* _GL_SYS_SELECT_H */
-#endif /* _GL_SYS_SELECT_H */
+
+#endif /* _@GUARD_PREFIX@_SYS_SELECT_H */
+#endif /* _@GUARD_PREFIX@_SYS_SELECT_H */
+#endif /* OSF/1 */
projects / gnulib.git / blobdiff