// Copyright (c) 2016 Klemens D. Morgenstern
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_PROCESS_DETAIL_POSIX_COMPARE_HANDLES_HPP_
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#define BOOST_PROCESS_DETAIL_POSIX_COMPARE_HANDLES_HPP_
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#include <boost/process/detail/config.hpp>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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namespace boost { namespace process { namespace detail { namespace posix {
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inline bool compare_handles(int lhs, int rhs)
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{
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if ((lhs == -1) || (rhs == -1))
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return false;
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if (lhs == rhs)
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return true;
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struct stat stat1, stat2;
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if(fstat(lhs, &stat1) < 0) ::boost::process::detail::throw_last_error("fstat() failed");
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if(fstat(rhs, &stat2) < 0) ::boost::process::detail::throw_last_error("fstat() failed");
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return (stat1.st_dev == stat2.st_dev) && (stat1.st_ino == stat2.st_ino);
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}
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}}}}
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#endif /* BOOST_PROCESS_DETAIL_POSIX_COMPARE_HANDLES_HPP_ */
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