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/*
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This file is part of libmicrohttpd
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Copyright (C) 2016 Karlson2k (Evgeny Grin)
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file microhttpd/mhd_itc.c
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* @brief Implementation of inter-thread communication functions
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* @author Karlson2k (Evgeny Grin)
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* @author Christian Grothoff
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*/
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#include "mhd_itc.h"
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif /* HAVE_UNISTD_H */
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#include <fcntl.h>
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#include "internal.h"
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#if defined(_MHD_ITC_PIPE)
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#if !defined(_WIN32) || defined(__CYGWIN__)
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#ifndef HAVE_PIPE2_FUNC
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/**
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* Change itc FD options to be non-blocking.
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*
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* @param itc the inter-thread communication primitive to manipulate
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* @return non-zero if succeeded, zero otherwise
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*/
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int
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MHD_itc_nonblocking_ (struct MHD_itc_ itc)
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{
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unsigned int i;
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for (i=0;i<2;i++)
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{
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int flags;
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flags = fcntl (itc.fd[i],
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F_GETFL);
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if (-1 == flags)
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return 0;
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if ( ((flags | O_NONBLOCK) != flags) &&
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(0 != fcntl (itc.fd[i],
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F_SETFL,
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flags | O_NONBLOCK)) )
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return 0;
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}
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return !0;
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}
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#endif /* ! HAVE_PIPE2_FUNC */
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#endif /* !_WIN32 || __CYGWIN__ */
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#endif /* _MHD_ITC_EVENTFD || _MHD_ITC_PIPE */
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