notify_io_service.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)
 
#pragma once
 
#include <boost/process/config.hpp>
#include <boost/process/posix/initializers/initializer_base.hpp>
 
namespace boost::process::posix::initializers
{
 
    template <class IOService>
    class notify_io_service_ : public initializer_base
    {
    public:
        explicit notify_io_service_(IOService& io_service) :
            io_service_(io_service) {}
 
        template <class PosixExecutor>
        void on_fork_setup(PosixExecutor&) const
        {
            io_service_.notify_fork(IOService::fork_prepare);
        }
 
        template <class PosixExecutor>
        void on_fork_success(PosixExecutor&) const
        {
            io_service_.notify_fork(IOService::fork_parent);
        }
 
        template <class PosixExecutor>
        void on_exec_setup(PosixExecutor&) const
        {
            io_service_.notify_fork(IOService::fork_child);
        }
 
    private:
        IOService& io_service_;
    };
 
    template <class IOService>
    notify_io_service_<IOService> notify_io_service(IOService& io_service)
    {
        return notify_io_service_<IOService>(io_service);
    }
 
}