/* Header for poll(2) emulation
Contributed by Paolo Bonzini.
- Copyright 2001, 2002, 2003, 2007, 2009, 2010 Free Software Foundation, Inc.
+ Copyright 2001-2003, 2007, 2009-2011 Free Software Foundation, Inc.
This file is part of gnulib.
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
#ifndef _GL_POLL_H
+
+#if __GNUC__ >= 3
+@PRAGMA_SYSTEM_HEADER@
+#endif
+@PRAGMA_COLUMNS@
+
+/* The include_next requires a split double-inclusion guard. */
+#if @HAVE_POLL_H@
+# @INCLUDE_NEXT@ @NEXT_POLL_H@
+#endif
+
+#ifndef _GL_POLL_H
#define _GL_POLL_H
+
+/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
+
+/* The definition of _GL_WARN_ON_USE is copied here. */
+
+
+#if !@HAVE_POLL_H@
+
/* fake a poll(2) environment */
-#define POLLIN 0x0001 /* any readable data available */
-#define POLLPRI 0x0002 /* OOB/Urgent readable data */
-#define POLLOUT 0x0004 /* file descriptor is writeable */
-#define POLLERR 0x0008 /* some poll error occurred */
-#define POLLHUP 0x0010 /* file descriptor was "hung up" */
-#define POLLNVAL 0x0020 /* requested events "invalid" */
-#define POLLRDNORM 0x0040
-#define POLLRDBAND 0x0080
-#define POLLWRNORM 0x0100
-#define POLLWRBAND 0x0200
+# define POLLIN 0x0001 /* any readable data available */
+# define POLLPRI 0x0002 /* OOB/Urgent readable data */
+# define POLLOUT 0x0004 /* file descriptor is writeable */
+# define POLLERR 0x0008 /* some poll error occurred */
+# define POLLHUP 0x0010 /* file descriptor was "hung up" */
+# define POLLNVAL 0x0020 /* requested events "invalid" */
+# define POLLRDNORM 0x0040
+# define POLLRDBAND 0x0080
+# define POLLWRNORM 0x0100
+# define POLLWRBAND 0x0200
+
+# if !GNULIB_defined_poll_types
struct pollfd
{
typedef unsigned long nfds_t;
-extern int poll (struct pollfd *pfd, nfds_t nfd, int timeout);
+# define GNULIB_defined_poll_types 1
+# endif
/* Define INFTIM only if doing so conforms to POSIX. */
-#if !defined (_POSIX_C_SOURCE) && !defined (_XOPEN_SOURCE)
-#define INFTIM (-1)
+# if !defined (_POSIX_C_SOURCE) && !defined (_XOPEN_SOURCE)
+# define INFTIM (-1)
+# endif
+
#endif
+
+#if @GNULIB_POLL@
+# if @REPLACE_POLL@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef poll
+# define poll rpl_poll
+# endif
+_GL_FUNCDECL_RPL (poll, int, (struct pollfd *pfd, nfds_t nfd, int timeout));
+_GL_CXXALIAS_RPL (poll, int, (struct pollfd *pfd, nfds_t nfd, int timeout));
+# else
+# if !@HAVE_POLL@
+_GL_FUNCDECL_SYS (poll, int, (struct pollfd *pfd, nfds_t nfd, int timeout));
+# endif
+_GL_CXXALIAS_SYS (poll, int, (struct pollfd *pfd, nfds_t nfd, int timeout));
+# endif
+_GL_CXXALIASWARN (poll);
+#elif defined GNULIB_POSIXCHECK
+# undef poll
+# if HAVE_RAW_DECL_POLL
+_GL_WARN_ON_USE (poll, "poll is unportable - "
+ "use gnulib module poll for portability");
+# endif
+#endif
+
+
+#endif /* _GL_POLL_H */
#endif /* _GL_POLL_H */