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aeb22f4861
This is a followup to edfca3b7e5, which
added the 'posix_spawnp' module but not 'posix_spawn'.
* m4/gnulib-cache.m4: Add 'posix_spawn' module.
* gnulib-local/m4/clock_time.m4.diff: Adjust.
* configure.ac: Move 'gl_EARLY' use right after 'AC_PROG_CC'.
125 lines
3.5 KiB
C
125 lines
3.5 KiB
C
/* Header for poll(2) emulation
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Contributed by Paolo Bonzini.
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Copyright 2001-2003, 2007, 2009-2023 Free Software Foundation, Inc.
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This file is part of gnulib.
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This file is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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This file is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#ifndef _@GUARD_PREFIX@_POLL_H
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#if __GNUC__ >= 3
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@PRAGMA_SYSTEM_HEADER@
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#endif
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@PRAGMA_COLUMNS@
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/* The include_next requires a split double-inclusion guard. */
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#if @HAVE_POLL_H@
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# @INCLUDE_NEXT@ @NEXT_POLL_H@
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#endif
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#ifndef _@GUARD_PREFIX@_POLL_H
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#define _@GUARD_PREFIX@_POLL_H
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/* On native Windows, get the 'struct pollfd' type and the POLL* macro
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definitions before we override them. mingw defines them in <winsock2.h>
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if _WIN32_WINNT >= 0x0600. */
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#if @HAVE_WINSOCK2_H@
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# include <winsock2.h>
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#endif
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/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
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/* The definition of _GL_WARN_ON_USE is copied here. */
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#if !@HAVE_POLL_H@
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# if @HAVE_WINSOCK2_H@
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/* Override the definitions from <winsock2.h>. */
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# undef POLLIN
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# undef POLLPRI
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# undef POLLOUT
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# undef POLLERR
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# undef POLLHUP
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# undef POLLNVAL
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# undef POLLRDNORM
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# undef POLLRDBAND
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# undef POLLWRNORM
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# undef POLLWRBAND
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# define pollfd rpl_pollfd
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# endif
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/* fake a poll(2) environment */
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# define POLLIN 0x0001 /* any readable data available */
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# define POLLPRI 0x0002 /* OOB/Urgent readable data */
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# define POLLOUT 0x0004 /* file descriptor is writable */
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# define POLLERR 0x0008 /* some poll error occurred */
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# define POLLHUP 0x0010 /* file descriptor was "hung up" */
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# define POLLNVAL 0x0020 /* requested events "invalid" */
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# define POLLRDNORM 0x0040
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# define POLLRDBAND 0x0080
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# define POLLWRNORM 0x0100
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# define POLLWRBAND 0x0200
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# if !GNULIB_defined_poll_types
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struct pollfd
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{
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int fd; /* which file descriptor to poll */
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short events; /* events we are interested in */
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short revents; /* events found on return */
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};
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typedef unsigned long nfds_t;
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# define GNULIB_defined_poll_types 1
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# endif
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/* Define INFTIM only if doing so conforms to POSIX. */
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# if !defined (_POSIX_C_SOURCE) && !defined (_XOPEN_SOURCE)
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# define INFTIM (-1)
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# endif
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#endif
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#if @GNULIB_POLL@
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# if @REPLACE_POLL@
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# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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# undef poll
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# define poll rpl_poll
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# endif
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_GL_FUNCDECL_RPL (poll, int, (struct pollfd *pfd, nfds_t nfd, int timeout));
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_GL_CXXALIAS_RPL (poll, int, (struct pollfd *pfd, nfds_t nfd, int timeout));
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# else
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# if !@HAVE_POLL@
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_GL_FUNCDECL_SYS (poll, int, (struct pollfd *pfd, nfds_t nfd, int timeout));
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# endif
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_GL_CXXALIAS_SYS (poll, int, (struct pollfd *pfd, nfds_t nfd, int timeout));
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# endif
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_GL_CXXALIASWARN (poll);
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#elif defined GNULIB_POSIXCHECK
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# undef poll
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# if HAVE_RAW_DECL_POLL
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_GL_WARN_ON_USE (poll, "poll is unportable - "
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"use gnulib module poll for portability");
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# endif
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#endif
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#endif /* _@GUARD_PREFIX@_POLL_H */
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#endif /* _@GUARD_PREFIX@_POLL_H */
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