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// 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_HPP_
#define BOOST_PROCESS_DETAIL_POSIX_GROUP_HPP_
#include <boost/process/detail/posix/child_handle.hpp>
#include <system_error>
#include <unistd.h>
namespace boost { namespace process { namespace detail { namespace posix {
struct group_handle
{
pid_t grp = -1;
typedef pid_t handle_t;
handle_t handle() const { return grp; }
explicit group_handle(handle_t h) :
grp(h)
{
}
group_handle() = default;
~group_handle() = default;
group_handle(const group_handle & c) = delete;
group_handle(group_handle && c) : grp(c.grp)
{
c.grp = -1;
}
group_handle &operator=(const group_handle & c) = delete;
group_handle &operator=(group_handle && c)
{
grp = c.grp;
c.grp = -1;
return *this;
}
void add(handle_t proc)
{
if (::setpgid(proc, grp))
throw_last_error();
}
void add(handle_t proc, std::error_code & ec) noexcept
{
if (::setpgid(proc, grp))
ec = get_last_error();
}
bool has(handle_t proc)
{
return ::getpgid(proc) == grp;
}
bool has(handle_t proc, std::error_code & ec) noexcept
{
return ::getpgid(proc) == grp;
}
bool valid() const
{
return grp != -1;
}
};
inline void terminate(group_handle &p)
{
if (::killpg(p.grp, SIGKILL) == -1)
boost::process::detail::throw_last_error("killpg(2) failed");
p.grp = -1;
}
inline void terminate(group_handle &p, std::error_code &ec) noexcept
{
if (::killpg(p.grp, SIGKILL) == -1)
ec = boost::process::detail::get_last_error();
else
ec.clear();
p.grp = -1;
}
inline bool in_group()
{
return true;
}
}}}}
#endif /* BOOST_PROCESS_DETAIL_WINDOWS_GROUP_HPP_ */
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