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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/config.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 &) noexcept
- {
- return ::getpgid(proc) == grp;
- }
- bool valid() const
- {
- return 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 void terminate(group_handle &p)
- {
- std::error_code ec;
- terminate(p, ec);
- boost::process::detail::throw_error(ec, "killpg(2) failed in terminate");
- }
- inline bool in_group()
- {
- return true;
- }
- }}}}
- #endif /* BOOST_PROCESS_DETAIL_WINDOWS_GROUP_HPP_ */
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