text: //
  // detail/impl/posix_thread.ipp
  // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  //
  // Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
  //
  // 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_ASIO_DETAIL_IMPL_POSIX_THREAD_IPP
  #define BOOST_ASIO_DETAIL_IMPL_POSIX_THREAD_IPP
  
  #if defined(_MSC_VER) && (_MSC_VER >= 1200)
  # pragma once
  #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
  
  #include <boost/asio/detail/config.hpp>
  
  #if defined(BOOST_HAS_PTHREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
  
  #include <boost/asio/detail/posix_thread.hpp>
  #include <boost/asio/detail/throw_error.hpp>
  #include <boost/asio/error.hpp>
  
  #include <boost/asio/detail/push_options.hpp>
  
  namespace boost {
  namespace asio {
  namespace detail {
  
  posix_thread::~posix_thread()
  {
    if (!joined_)
      ::pthread_detach(thread_);
  }
  
  void posix_thread::join()
  {
    if (!joined_)
    {
      ::pthread_join(thread_, 0);
      joined_ = true;
    }
  }
  
  void posix_thread::start_thread(func_base* arg)
  {
    int error = ::pthread_create(&thread_, 0,
          boost_asio_detail_posix_thread_function, arg);
    if (error != 0)
    {
      delete arg;
      boost::system::error_code ec(error,
          boost::asio::error::get_system_category());
      boost::asio::detail::throw_error(ec, "thread");
    }
  }
  
  void* boost_asio_detail_posix_thread_function(void* arg)
  {
    posix_thread::auto_func_base_ptr func = {
        static_cast<posix_thread::func_base*>(arg) };
    func.ptr->run();
    return 0;
  }
  
  } // namespace detail
  } // namespace asio
  } // namespace boost
  
  #include <boost/asio/detail/pop_options.hpp>
  
  #endif // defined(BOOST_HAS_PTHREADS) && !defined(BOOST_ASIO_DISABLE_THREADS)
  
  #endif // BOOST_ASIO_DETAIL_IMPL_POSIX_THREAD_IPP
  