0b6a182c
 Hu Chunming
添加无鉴权注册和注销
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// Copyright (c) 2022 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_V2_EXECUTE_HPP
#define BOOST_PROCESS_V2_EXECUTE_HPP
#include <boost/process/v2/process.hpp>
#if defined(BOOST_PROCESS_V2_STANDALONE)
#include <asio/bind_cancellation_slot.hpp>
#else
#include <boost/asio/bind_cancellation_slot.hpp>
#endif
BOOST_PROCESS_V2_BEGIN_NAMESPACE
/**
* @brief Run a process and wait for it to complete.
*
* @tparam Executor The asio executor of the process handle
* @param proc The process to be run.
* @return int The exit code of the process
* @exception system_error An error that might have occured during the wait.
*/
template<typename Executor>
inline int execute(basic_process<Executor> proc)
{
return proc.wait();
}
/** \overload int execute(const basic_process<Executor> proc) */
template<typename Executor>
inline int execute(basic_process<Executor> proc, error_code & ec)
{
return proc.wait(ec);
}
namespace detail
{
template<typename Executor>
struct execute_op
{
std::unique_ptr<basic_process<Executor>> proc;
struct cancel
{
using cancellation_type = BOOST_PROCESS_V2_ASIO_NAMESPACE::cancellation_type;
basic_process<Executor> * proc;
cancel(basic_process<Executor> * proc) : proc(proc) {}
void operator()(cancellation_type tp)
{
error_code ign;
if ((tp & cancellation_type::total) != cancellation_type::none)
proc->interrupt(ign);
else if ((tp & cancellation_type::partial) != cancellation_type::none)
proc->request_exit(ign);
else if ((tp & cancellation_type::terminal) != cancellation_type::none)
proc->terminate(ign);
}
};
template<typename Self>
void operator()(Self && self)
{
self.reset_cancellation_state();
BOOST_PROCESS_V2_ASIO_NAMESPACE::cancellation_slot s = self.get_cancellation_state().slot();
if (s.is_connected())
s.emplace<cancel>(proc.get());
auto pro_ = proc.get();
pro_->async_wait(
BOOST_PROCESS_V2_ASIO_NAMESPACE::bind_cancellation_slot(
BOOST_PROCESS_V2_ASIO_NAMESPACE::cancellation_slot(),
std::move(self)));
}
template<typename Self>
void operator()(Self && self, error_code ec, int res)
{
self.get_cancellation_state().slot().clear();
self.complete(ec, res);
}
};
}
/// Execute a process asynchronously
/** This function asynchronously for a process to complete.
*
* Cancelling the execution will signal the child process to exit
* with the following intepretations:
*
* - cancellation_type::total -> interrupt
* - cancellation_type::partial -> request_exit
* - cancellation_type::terminal -> terminate
*
* It is to note that `async_execute` will us the lowest seelected cancellation
* type. A subprocess might ignore anything not terminal.
*/
template<typename Executor = BOOST_PROCESS_V2_ASIO_NAMESPACE::any_io_executor,
BOOST_PROCESS_V2_COMPLETION_TOKEN_FOR(void (error_code, int))
WaitHandler BOOST_PROCESS_V2_DEFAULT_COMPLETION_TOKEN_TYPE(Executor)>
inline
BOOST_PROCESS_V2_INITFN_AUTO_RESULT_TYPE(WaitHandler, void (error_code, int))
async_execute(basic_process<Executor> proc,
WaitHandler && handler BOOST_ASIO_DEFAULT_COMPLETION_TOKEN(Executor))
{
std::unique_ptr<basic_process<Executor>> pro_(new basic_process<Executor>(std::move(proc)));
auto exec = proc.get_executor();
return BOOST_PROCESS_V2_ASIO_NAMESPACE::async_compose<WaitHandler, void(error_code, int)>(
detail::execute_op<Executor>{std::move(pro_)}, handler, exec);
}
BOOST_PROCESS_V2_END_NAMESPACE
#endif //BOOST_PROCESS_V2_EXECUTE_HPP
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