child.hpp

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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)
 
/**
 * \file boost/process/child.hpp
 *
 * Defines a child process class.
 */
 
#pragma once
 
#include <boost/process/config.hpp>
 
#include BOOST_PROCESS_PLATFORM_PROMOTE_PATH(child)
BOOST_PROCESS_PLATFORM_PROMOTE_NAMESPACE(child)
 
#if defined(BOOST_PROCESS_DOXYGEN)
namespace boost::process
{
 
    /**
     * Represents a child process.
     *
     * On Windows child is movable but non-copyable. The destructor
     * automatically closes handles to the child process.
     */
    struct child
    {
        /**
         * Process information.
         *
         * \remark <em>Windows only.</em>
         */
        PROCESS_INFORMATION proc_info;
 
        /**
         * Constructor.
         *
         * \remark <em>Windows only.<em/>
         */
        explicit child(const PROCESS_INFORMATION& pi) : proc_info(pi) {}
 
        /**
         * Returns the process handle.
         *
         * \remark <em>Windows only.</em>
         */
        HANDLE process_handle() const
        {
            return proc_info.hProcess;
        }
 
        /**
         * Process identifier.
         *
         * \remark <em>POSIX only.</em>
         */
        pid_t pid;
 
        /**
         * Constructor.
         *
         * \remark <em>POSIX only.</em>
         */
        explicit child(pid_t p) : pid(p) {}
    };
}
#endif