libcarla/include/system/boost/process/detail/posix/group_ref.hpp
2024-10-18 13:19:59 +08:00

53 lines
1.1 KiB
C++

// Copyright (c) 2016 Klemens D. Morgenstern
//
// 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_DETAIL_POSIX_GROUP_REF_HPP_
#define BOOST_PROCESS_DETAIL_POSIX_GROUP_REF_HPP_
#include <boost/process/detail/config.hpp>
#include <boost/process/detail/posix/group_handle.hpp>
#include <boost/process/detail/posix/handler.hpp>
#include <unistd.h>
namespace boost { namespace process {
namespace detail { namespace posix {
struct group_ref : handler_base_ext
{
group_handle & grp;
explicit group_ref(group_handle & g) :
grp(g)
{}
template <class Executor>
void on_exec_setup(Executor&) const
{
if (grp.grp == -1)
::setpgid(0, 0);
else
::setpgid(0, grp.grp);
}
template <class Executor>
void on_success(Executor& exec) const
{
if (grp.grp == -1)
grp.grp = exec.pid;
}
};
}}}}
#endif /* BOOST_PROCESS_DETAIL_POSIX_GROUP_REF_HPP_ */