ceph/src/boost/boost/process/detail/windows/file_out.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_OUT_HPP
  11 #define BOOST_PROCESS_DETAIL_WINDOWS_FILE_OUT_HPP
  12
  13 #include <boost/winapi/process.hpp>
  14 #include <boost/winapi/handles.hpp>
  15 #include <boost/winapi/handle_info.hpp>
  16 #include <boost/process/detail/handler_base.hpp>
  17 #include <boost/process/detail/windows/file_descriptor.hpp>
  18
  19 namespace boost { namespace process { namespace detail { namespace windows {
  20
  21 template<int p1, int p2>
  22 struct file_out : public ::boost::process::detail::handler_base
  23 {
  24     file_descriptor file;
  25     ::boost::winapi::HANDLE_ handle = file.handle();
  26
  27     template<typename T>
  28     file_out(T&& t) : file(std::forward<T>(t), file_descriptor::write) {}
  29     file_out(FILE * f) : handle(reinterpret_cast<void*>(_get_osfhandle(_fileno(f)))) {}
  30
  31     template <typename WindowsExecutor>
  32     inline void on_setup(WindowsExecutor &e) const;
  33 };
  34
  35 template<>
  36 template<typename WindowsExecutor>
  37 void file_out<1,-1>::on_setup(WindowsExecutor &e) const
  38 {
  39     boost::winapi::SetHandleInformation(handle,
  40             boost::winapi::HANDLE_FLAG_INHERIT_,
  41             boost::winapi::HANDLE_FLAG_INHERIT_);
  42
  43     e.startup_info.hStdOutput = handle;
  44     e.startup_info.dwFlags   |= ::boost::winapi::STARTF_USESTDHANDLES_;
  45     e.inherit_handles = true;
  46 }
  47
  48 template<>
  49 template<typename WindowsExecutor>
  50 void file_out<2,-1>::on_setup(WindowsExecutor &e) const
  51 {
  52     boost::winapi::SetHandleInformation(handle,
  53             boost::winapi::HANDLE_FLAG_INHERIT_,
  54             boost::winapi::HANDLE_FLAG_INHERIT_);
  55
  56     e.startup_info.hStdError = handle;
  57     e.startup_info.dwFlags  |= ::boost::winapi::STARTF_USESTDHANDLES_;
  58     e.inherit_handles = true;
  59 }
  60
  61 template<>
  62 template<typename WindowsExecutor>
  63 void file_out<1,2>::on_setup(WindowsExecutor &e) const
  64 {
  65     boost::winapi::SetHandleInformation(handle,
  66             boost::winapi::HANDLE_FLAG_INHERIT_,
  67             boost::winapi::HANDLE_FLAG_INHERIT_);
  68
  69     e.startup_info.hStdOutput = handle;
  70     e.startup_info.hStdError  = handle;
  71     e.startup_info.dwFlags   |= ::boost::winapi::STARTF_USESTDHANDLES_;
  72     e.inherit_handles = true;
  73 }
  74
  75 }}}}
  76
  77 #endif