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/*
This file is part of libmicrohttpd
Copyright (C) 2016 Karlson2k (Evgeny Grin)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file microhttpd/mhd_sockets.c
* @brief Implementation of inter-thread communication functions
* @author Karlson2k (Evgeny Grin)
*/
#include "mhd_itc.h"
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif /* HAVE_UNISTD_H */
#include <fcntl.h>
#ifndef MHD_DONT_USE_PIPES
#if !defined(_WIN32) || defined(__CYGWIN__)
/**
* Change itc FD options to be non-blocking.
*
* @param fd the FD to manipulate
* @return non-zero if succeeded, zero otherwise
*/
int
MHD_itc_nonblocking_ (MHD_pipe fd)
{
int flags;
flags = fcntl (fd,
F_GETFL);
if (-1 == flags)
return 0;
if ( ((flags | O_NONBLOCK) != flags) &&
(0 != fcntl (fd,
F_SETFL,
flags | O_NONBLOCK)) )
return 0;
return !0;
}
#endif /* _WIN32 && ! __CYGWIN__ */
#endif /* ! MHD_DONT_USE_PIPES */
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