69 lines
1.9 KiB
C++
Executable file
69 lines
1.9 KiB
C++
Executable file
// 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
|
|
// 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)
|
|
|
|
/**
|
|
* \file boost/process/spawn.hpp
|
|
*
|
|
* Defines the spawn function.
|
|
*/
|
|
|
|
#ifndef BOOST_PROCESS_SPAWN_HPP
|
|
#define BOOST_PROCESS_SPAWN_HPP
|
|
|
|
#include <boost/process/detail/config.hpp>
|
|
#include <boost/process/detail/child_decl.hpp>
|
|
#include <boost/process/detail/execute_impl.hpp>
|
|
#include <boost/process/detail/async_handler.hpp>
|
|
|
|
#if defined(BOOST_POSIX_API)
|
|
#include <boost/process/posix.hpp>
|
|
#endif
|
|
|
|
namespace boost {
|
|
|
|
namespace process {
|
|
|
|
namespace detail {
|
|
|
|
}
|
|
|
|
/** Launch a process and detach it. Returns no handle.
|
|
|
|
This function starts a process and immediately detaches it. It thereby prevents the system from creating a zombie process,
|
|
but will also cause the system to be unable to wait for the child to exit.
|
|
|
|
\note This will set `SIGCHLD` to `SIGIGN` on posix.
|
|
|
|
\warning This function does not allow asynchronous operations, since it cannot wait for the end of the process.
|
|
It will fail to compile if a reference to `boost::asio::io_context` is passed.
|
|
|
|
*/
|
|
template<typename ...Args>
|
|
inline void spawn(Args && ...args)
|
|
{
|
|
typedef typename ::boost::process::detail::has_async_handler<Args...>::type
|
|
has_async;
|
|
|
|
|
|
static_assert(
|
|
!has_async::value,
|
|
"Spawn cannot wait for exit, so async properties cannot be used");
|
|
|
|
auto c = ::boost::process::detail::execute_impl(
|
|
#if defined(BOOST_POSIX_API)
|
|
::boost::process::posix::sig.ign(),
|
|
#endif
|
|
std::forward<Args>(args)...);
|
|
c.detach();
|
|
}
|
|
|
|
}}
|
|
#endif
|
|
|