ceph/src/boost/libs/asio/include/boost/asio/detail/winapi_thread.hpp

   1 //
   2 // detail/winapi_thread.hpp
   3 // ~~~~~~~~~~~~~~~~~~~~~~~~
   4 //
   5 // Copyright (c) 2003-2016 Christopher M. Kohlhoff (chris at kohlhoff dot com)
   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
  11 #ifndef BOOST_ASIO_DETAIL_WINAPI_THREAD_HPP
  12 #define BOOST_ASIO_DETAIL_WINAPI_THREAD_HPP
  13
  14 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
  15 # pragma once
  16 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
  17
  18 #include <boost/asio/detail/config.hpp>
  19
  20 #if defined(BOOST_ASIO_WINDOWS)
  21 #if defined(BOOST_ASIO_WINDOWS_APP) || defined(UNDER_CE)
  22
  23 #include <memory>
  24 #include <boost/asio/detail/noncopyable.hpp>
  25 #include <boost/asio/detail/socket_types.hpp>
  26 #include <boost/asio/detail/throw_error.hpp>
  27 #include <boost/asio/error.hpp>
  28
  29 #include <boost/asio/detail/push_options.hpp>
  30
  31 namespace boost {
  32 namespace asio {
  33 namespace detail {
  34
  35 DWORD WINAPI winapi_thread_function(LPVOID arg);
  36
  37 class winapi_thread
  38   : private noncopyable
  39 {
  40 public:
  41   // Constructor.
  42   template <typename Function>
  43   winapi_thread(Function f, unsigned int = 0)
  44   {
  45     std::auto_ptr<func_base> arg(new func<Function>(f));
  46     DWORD thread_id = 0;
  47     thread_ = ::CreateThread(0, 0, winapi_thread_function,
  48         arg.get(), 0, &thread_id);
  49     if (!thread_)
  50     {
  51       DWORD last_error = ::GetLastError();
  52       boost::system::error_code ec(last_error,
  53           boost::asio::error::get_system_category());
  54       boost::asio::detail::throw_error(ec, "thread");
  55     }
  56     arg.release();
  57   }
  58
  59   // Destructor.
  60   ~winapi_thread()
  61   {
  62     ::CloseHandle(thread_);
  63   }
  64
  65   // Wait for the thread to exit.
  66   void join()
  67   {
  68 #if defined(BOOST_ASIO_WINDOWS_APP)
  69     ::WaitForSingleObjectEx(thread_, INFINITE, false);
  70 #else // defined(BOOST_ASIO_WINDOWS_APP)
  71     ::WaitForSingleObject(thread_, INFINITE);
  72 #endif // defined(BOOST_ASIO_WINDOWS_APP)
  73   }
  74
  75 private:
  76   friend DWORD WINAPI winapi_thread_function(LPVOID arg);
  77
  78   class func_base
  79   {
  80   public:
  81     virtual ~func_base() {}
  82     virtual void run() = 0;
  83   };
  84
  85   template <typename Function>
  86   class func
  87     : public func_base
  88   {
  89   public:
  90     func(Function f)
  91       : f_(f)
  92     {
  93     }
  94
  95     virtual void run()
  96     {
  97       f_();
  98     }
  99
 100   private:
 101     Function f_;
 102   };
 103
 104   ::HANDLE thread_;
 105 };
 106
 107 inline DWORD WINAPI winapi_thread_function(LPVOID arg)
 108 {
 109   std::auto_ptr<winapi_thread::func_base> func(
 110       static_cast<winapi_thread::func_base*>(arg));
 111   func->run();
 112   return 0;
 113 }
 114
 115 } // namespace detail
 116 } // namespace asio
 117 } // namespace boost
 118
 119 #include <boost/asio/detail/pop_options.hpp>
 120
 121 #endif // defined(BOOST_ASIO_WINDOWS_APP) || defined(UNDER_CE)
 122 #endif // defined(BOOST_ASIO_WINDOWS)
 123
 124 #endif // BOOST_ASIO_DETAIL_WINAPI_THREAD_HPP