/* Header for poll(2) emulation

   Contributed by Paolo Bonzini.

   Copyright 2001-2003, 2007, 2009-2018 Free Software Foundation, Inc.

   This file is part of gnulib.

   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

   the Free Software Foundation; either version 3, or (at your option)

   any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License along

   with this program; if not, see <https://www.gnu.org/licenses/>.  */

#ifndef _@GUARD_PREFIX@_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 _@GUARD_PREFIX@_POLL_H

#define _@GUARD_PREFIX@_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 writable   */

# 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

{

  int fd;                       /* which file descriptor to poll */

  short events;                 /* events we are interested in   */

  short revents;                /* events found on return        */

};

typedef unsigned long nfds_t;

#  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)

# 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 /* _@GUARD_PREFIX@_POLL_H */

#endif /* _@GUARD_PREFIX@_POLL_H */