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lms/boost/process/posix/wait_for_exit.hpp
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2014-03-09 10:58:52 +01:00

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// Copyright (c) 2006, 2007 Julio M. Merino Vidal
// Copyright (c) 2008 Ilya Sokolov, Boris Schaeling
// Copyright (c) 2009 Boris Schaeling
// Copyright (c) 2010 Felipe Tanus, Boris Schaeling
// Copyright (c) 2011, 2012 Jeff Flinn, Boris Schaeling
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#ifndef BOOST_PROCESS_POSIX_WAIT_FOR_EXIT_HPP
#define BOOST_PROCESS_POSIX_WAIT_FOR_EXIT_HPP
#include <boost/process/config.hpp>
#include <boost/system/error_code.hpp>
#include <sys/types.h>
#include <sys/wait.h>
namespace boost { namespace process { namespace posix {
template <class Process>
inline int wait_for_exit(const Process &p)
{
pid_t ret;
int status;
do
{
ret = ::waitpid(p.pid, &status, 0);
} while ((ret == -1 && errno == EINTR) || (ret != -1 && !WIFEXITED(status)));
if (ret == -1)
BOOST_PROCESS_THROW_LAST_SYSTEM_ERROR("waitpid(2) failed");
return status;
}
template <class Process>
inline int wait_for_exit(const Process &p, boost::system::error_code &ec)
{
pid_t ret;
int status;
do
{
ret = ::waitpid(p.pid, &status, 0);
} while ((ret == -1 && errno == EINTR) || (ret != -1 && !WIFEXITED(status)));
if (ret == -1)
BOOST_PROCESS_RETURN_LAST_SYSTEM_ERROR(ec);
else
ec.clear();
return status;
}
}}}
#endif