detail/posix/terminate.hpp

0001 // Copyright (c) 2006, 2007 Julio M. Merino Vidal
0002 // Copyright (c) 2008 Ilya Sokolov, Boris Schaeling
0003 // Copyright (c) 2009 Boris Schaeling
0004 // Copyright (c) 2010 Felipe Tanus, Boris Schaeling
0005 // Copyright (c) 2011, 2012 Jeff Flinn, Boris Schaeling
0006 //
0007 // Distributed under the Boost Software License, Version 1.0. (See accompanying
0008 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0009
0010 #ifndef BOOST_PROCESS_DETAIL_POSIX_TERMINATE_HPP
0011 #define BOOST_PROCESS_DETAIL_POSIX_TERMINATE_HPP
0012
0013 #include <boost/process/detail/config.hpp>
0014 #include <boost/process/detail/posix/child_handle.hpp>
0015 #include <system_error>
0016 #include <signal.h>
0017 #include <sys/wait.h>
0018
0019
0020 namespace boost { namespace process { namespace detail { namespace posix {
0021
0022 inline void terminate(const child_handle &p, std::error_code &ec) noexcept
0023 {
0024     if (::kill(p.pid, SIGKILL) == -1)
0025         ec = boost::process::detail::get_last_error();
0026     else
0027         ec.clear();
0028
0029     int status;
0030     ::waitpid(p.pid, &status, 0); //should not be WNOHANG, since that would allow zombies.
0031 }
0032
0033 inline void terminate(const child_handle &p)
0034 {
0035     std::error_code ec;
0036     terminate(p, ec);
0037     boost::process::detail::throw_error(ec, "kill(2) failed");
0038 }
0039
0040 }}}}
0041
0042 #endif