ceph/src/boost/boost/process/detail/windows/file_in.hpp

   1 // Copyright (c) 2006, 2007 Julio M. Merino Vidal
   2 // Copyright (c) 2008 Ilya Sokolov, Boris Schaeling
   3 // Copyright (c) 2009 Boris Schaeling
   4 // Copyright (c) 2010 Felipe Tanus, Boris Schaeling
   5 // Copyright (c) 2011, 2012 Jeff Flinn, Boris Schaeling
   6 //
   7 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   9
  10 #ifndef BOOST_PROCESS_DETAIL_WINDOWS_FILE_IN_HPP
  11 #define BOOST_PROCESS_DETAIL_WINDOWS_FILE_IN_HPP
  12
  13 #include <boost/winapi/process.hpp>
  14 #include <boost/winapi/handles.hpp>
  15 #include <boost/process/detail/handler_base.hpp>
  16 #include <boost/process/detail/used_handles.hpp>
  17 #include <boost/process/detail/windows/file_descriptor.hpp>
  18 #include <io.h>
  19
  20 namespace boost { namespace process { namespace detail { namespace windows {
  21
  22 struct file_in : public ::boost::process::detail::handler_base,
  23                         ::boost::process::detail::uses_handles
  24 {
  25     file_descriptor file;
  26     ::boost::winapi::HANDLE_ handle = file.handle();
  27
  28     ::boost::winapi::HANDLE_ get_used_handles() const { return handle; }
  29
  30     template<typename T>
  31     file_in(T&& t) : file(std::forward<T>(t), file_descriptor::read) {}
  32     file_in(FILE * f) : handle(reinterpret_cast<::boost::winapi::HANDLE_>(_get_osfhandle(_fileno(f)))) {}
  33
  34     template <class WindowsExecutor>
  35     void on_setup(WindowsExecutor &e) const
  36     {
  37         boost::winapi::SetHandleInformation(handle,
  38                 boost::winapi::HANDLE_FLAG_INHERIT_,
  39                 boost::winapi::HANDLE_FLAG_INHERIT_);
  40         e.startup_info.hStdInput = handle;
  41         e.startup_info.dwFlags  |= boost::winapi::STARTF_USESTDHANDLES_;
  42         e.inherit_handles = true;
  43     }
  44 };
  45
  46 }}}}
  47
  48 #endif