整理

include/boost/process/v1/detail/posix/on_exit.hpp

@@ -0,0 +1,48 @@
+// 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_POSIX_ON_EXIT_HPP_
+#define BOOST_PROCESS_POSIX_ON_EXIT_HPP_
+
+#include <boost/asio/execution.hpp>
+#include <boost/process/v1/async.hpp>
+#include <boost/process/v1/detail/config.hpp>
+#include <boost/process/v1/detail/handler_base.hpp>
+#include <boost/process/v1/detail/posix/async_handler.hpp>
+#include <system_error>
+#include <functional>
+
+namespace boost { namespace process { BOOST_PROCESS_V1_INLINE namespace v1 { namespace detail {
+
+template<typename Tuple>
+inline asio::io_context& get_io_context(const Tuple & tup);
+
+namespace posix {
+
+struct on_exit_ : boost::process::v1::detail::posix::async_handler
+{
+    std::function<void(int, const std::error_code&)> handler;
+    on_exit_(const std::function<void(int, const std::error_code&)> & handler) : handler(handler)
+    {
+    }
+
+    template<typename Executor>
+    std::function<void(int, const std::error_code&)> on_exit_handler(Executor& exec)
+    {
+        auto v = boost::asio::prefer(boost::process::v1::detail::get_io_context(exec.seq).get_executor(),
+                                     boost::asio::execution::outstanding_work.tracked);
+        auto handler_ = this->handler;
+        return
+            [handler_, v](int exit_code, const std::error_code & ec)
+            {
+                handler_(exit_code, ec);
+            };
+
+    }
+};
+
+
+}}}}}
+#endif /* BOOST_PROCESS_POSIX_ON_EXIT_HPP_ */