整理

include/boost/process/v1/detail/windows/file_in.hpp

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+// 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
+//
+// 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_WINDOWS_FILE_IN_HPP
+#define BOOST_PROCESS_DETAIL_WINDOWS_FILE_IN_HPP
+
+#include <boost/winapi/process.hpp>
+#include <boost/winapi/handles.hpp>
+#include <boost/process/v1/detail/handler_base.hpp>
+#include <boost/process/v1/detail/used_handles.hpp>
+#include <boost/process/v1/detail/windows/file_descriptor.hpp>
+#include <io.h>
+
+namespace boost { namespace process { BOOST_PROCESS_V1_INLINE namespace v1 { namespace detail { namespace windows {
+
+struct file_in : public ::boost::process::v1::detail::handler_base,
+                        ::boost::process::v1::detail::uses_handles
+{
+    file_descriptor file;
+    ::boost::winapi::HANDLE_ handle = file.handle();
+
+    ::boost::winapi::HANDLE_ get_used_handles() const { return handle; }
+
+    template<typename T>
+    file_in(T&& t) : file(std::forward<T>(t), file_descriptor::read) {}
+    file_in(FILE * f) : handle(reinterpret_cast<::boost::winapi::HANDLE_>(_get_osfhandle(_fileno(f)))) {}
+
+    template <class WindowsExecutor>
+    void on_setup(WindowsExecutor &e) const
+    {
+        boost::winapi::SetHandleInformation(handle,
+                boost::winapi::HANDLE_FLAG_INHERIT_,
+                boost::winapi::HANDLE_FLAG_INHERIT_);
+        e.startup_info.hStdInput = handle;
+        e.startup_info.dwFlags  |= boost::winapi::STARTF_USESTDHANDLES_;
+        e.inherit_handles = true;
+    }
+};
+
+}}}}}
+
+#endif