/* Substitute for <sys/select.h>.

   Copyright (C) 2007-2018 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

   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/>.  */

# if __GNUC__ >= 3

@PRAGMA_SYSTEM_HEADER@

# endif

@PRAGMA_COLUMNS@

/* On OSF/1 and Solaris 2.6, <sys/types.h> and <sys/time.h>

   both include <sys/select.h>.

   On Cygwin, <sys/time.h> includes <sys/select.h>.

   Simply delegate to the system's header in this case.  */

#if (@HAVE_SYS_SELECT_H@                                                \

     && !defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TYPES_H             \

     && ((defined __osf__ && defined _SYS_TYPES_H_                      \

          && defined _OSF_SOURCE)                                       \

         || (defined __sun && defined _SYS_TYPES_H                      \

             && (! (defined _XOPEN_SOURCE || defined _POSIX_C_SOURCE)   \

                 || defined __EXTENSIONS__))))

# define _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TYPES_H

# @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@

#elif (@HAVE_SYS_SELECT_H@                                              \

       && (defined _CYGWIN_SYS_TIME_H                                   \

           || (!defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H       \

               && ((defined __osf__ && defined _SYS_TIME_H_             \

                    && defined _OSF_SOURCE)                             \

                   || (defined __sun && defined _SYS_TIME_H             \

                       && (! (defined _XOPEN_SOURCE                     \

                              || defined _POSIX_C_SOURCE)               \

                           || defined __EXTENSIONS__))))))

# define _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H

# @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@

/* On IRIX 6.5, <sys/timespec.h> includes <sys/types.h>, which includes

   <sys/bsd_types.h>, which includes <sys/select.h>.  At this point we cannot

   include <signal.h>, because that includes <internal/signal_core.h>, which

   gives a syntax error because <sys/timespec.h> has not been completely

   processed.  Simply delegate to the system's header in this case.  */

#elif @HAVE_SYS_SELECT_H@ && defined __sgi && (defined _SYS_BSD_TYPES_H && !defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_BSD_TYPES_H)

# define _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_BSD_TYPES_H

# @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@

/* On OpenBSD 5.0, <pthread.h> includes <sys/types.h>, which includes

   <sys/select.h>.  At this point we cannot include <signal.h>, because that

   includes gnulib's pthread.h override, which gives a syntax error because

   /usr/include/pthread.h has not been completely processed.  Simply delegate

   to the system's header in this case.  */

#elif @HAVE_SYS_SELECT_H@ && defined __OpenBSD__ && (defined _PTHREAD_H_ && !defined PTHREAD_MUTEX_INITIALIZER)

# @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@

#else

#ifndef _@GUARD_PREFIX@_SYS_SELECT_H

/* On many platforms, <sys/select.h> assumes prior inclusion of

   <sys/types.h>.  Also, mingw defines sigset_t there, instead of

   in <signal.h> where it belongs.  */

#include <sys/types.h>

#if @HAVE_SYS_SELECT_H@

/* On OSF/1 4.0, <sys/select.h> provides only a forward declaration

   of 'struct timeval', and no definition of this type.

   Also, Mac OS X, AIX, HP-UX, IRIX, Solaris, Interix declare select()

   in <sys/time.h>.

   But avoid namespace pollution on glibc systems and "unknown type

   name" problems on Cygwin.  */

# if !(defined __GLIBC__ || defined __CYGWIN__)

#  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

/* Get definition of 'sigset_t'.

   But avoid namespace pollution on glibc systems and "unknown type

   name" problems on Cygwin.

   Do this after the include_next (for the sake of OpenBSD 5.0) but before

   the split double-inclusion guard (for the sake of Solaris).  */

#if !((defined __GLIBC__ || defined __CYGWIN__) && !defined __UCLIBC__)

# include <signal.h>

#endif

#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.

   Get the close() declaration before we override it.  */

# if @HAVE_WINSOCK2_H@

#  if !defined _GL_INCLUDING_WINSOCK2_H

#   define _GL_INCLUDING_WINSOCK2_H

#   include <winsock2.h>

#   undef _GL_INCLUDING_WINSOCK2_H

#  endif

#  include <io.h>

# endif

#endif

/* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */

/* The definition of _GL_WARN_ON_USE is copied here.  */

/* Fix some definitions from <winsock2.h>.  */

#if @HAVE_WINSOCK2_H@

# if !GNULIB_defined_rpl_fd_isset

/* Re-define FD_ISSET to avoid a WSA call while we are not using

   network sockets.  */

static int

rpl_fd_isset (SOCKET fd, fd_set * set)

{

  u_int i;

  if (set == NULL)

    return 0;

  for (i = 0; i < set->fd_count; i++)

    if (set->fd_array[i] == fd)

      return 1;

  return 0;

}

#  define GNULIB_defined_rpl_fd_isset 1

# endif

# undef FD_ISSET

# define FD_ISSET(fd, set) rpl_fd_isset(fd, set)

#endif

/* Hide some function declarations from <winsock2.h>.  */

#if @HAVE_WINSOCK2_H@

# if !defined _@GUARD_PREFIX@_UNISTD_H

#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)

#   undef close

#   define close close_used_without_including_unistd_h

#  else

    _GL_WARN_ON_USE (close,

                     "close() used without including <unistd.h>");

#  endif

#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)

#   undef gethostname

#   define gethostname gethostname_used_without_including_unistd_h

#  else

    _GL_WARN_ON_USE (gethostname,

                     "gethostname() used without including <unistd.h>");

#  endif

# endif

# if !defined _@GUARD_PREFIX@_SYS_SOCKET_H

#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)

#   undef socket

#   define socket              socket_used_without_including_sys_socket_h

#   undef connect

#   define connect             connect_used_without_including_sys_socket_h

#   undef accept

#   define accept              accept_used_without_including_sys_socket_h

#   undef bind

#   define bind                bind_used_without_including_sys_socket_h

#   undef getpeername

#   define getpeername         getpeername_used_without_including_sys_socket_h

#   undef getsockname

#   define getsockname         getsockname_used_without_including_sys_socket_h

#   undef getsockopt

#   define getsockopt          getsockopt_used_without_including_sys_socket_h

#   undef listen

#   define listen              listen_used_without_including_sys_socket_h

#   undef recv

#   define recv                recv_used_without_including_sys_socket_h

#   undef send

#   define send                send_used_without_including_sys_socket_h

#   undef recvfrom

#   define recvfrom            recvfrom_used_without_including_sys_socket_h

#   undef sendto

#   define sendto              sendto_used_without_including_sys_socket_h

#   undef setsockopt

#   define setsockopt          setsockopt_used_without_including_sys_socket_h

#   undef shutdown

#   define shutdown            shutdown_used_without_including_sys_socket_h

#  else

    _GL_WARN_ON_USE (socket,

                     "socket() used without including <sys/socket.h>");

    _GL_WARN_ON_USE (connect,

                     "connect() used without including <sys/socket.h>");

    _GL_WARN_ON_USE (accept,

                     "accept() used without including <sys/socket.h>");

    _GL_WARN_ON_USE (bind,

                     "bind() used without including <sys/socket.h>");

    _GL_WARN_ON_USE (getpeername,

                     "getpeername() used without including <sys/socket.h>");

    _GL_WARN_ON_USE (getsockname,

                     "getsockname() used without including <sys/socket.h>");

    _GL_WARN_ON_USE (getsockopt,

                     "getsockopt() used without including <sys/socket.h>");

    _GL_WARN_ON_USE (listen,

                     "listen() used without including <sys/socket.h>");

    _GL_WARN_ON_USE (recv,

                     "recv() used without including <sys/socket.h>");

    _GL_WARN_ON_USE (send,

                     "send() used without including <sys/socket.h>");

    _GL_WARN_ON_USE (recvfrom,

                     "recvfrom() used without including <sys/socket.h>");

    _GL_WARN_ON_USE (sendto,

                     "sendto() used without including <sys/socket.h>");

    _GL_WARN_ON_USE (setsockopt,

                     "setsockopt() used without including <sys/socket.h>");

    _GL_WARN_ON_USE (shutdown,

                     "shutdown() used without including <sys/socket.h>");

#  endif

# endif

#endif

#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 *restrict, fd_set *restrict, fd_set *restrict,

                   struct timeval *restrict));

_GL_CXXALIAS_RPL (select, int,

                  (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,

                   struct timeval *restrict));

# else

_GL_CXXALIAS_SYS (select, int,

                  (int, fd_set *restrict, fd_set *restrict, fd_set *restrict,

                   struct timeval *restrict));

# 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 /* _@GUARD_PREFIX@_SYS_SELECT_H */

#endif /* _@GUARD_PREFIX@_SYS_SELECT_H */

#endif /* OSF/1 */