ceph/src/boost/boost/asio/detail/local_free_on_block_exit.hpp

   1 //
   2 // detail/local_free_on_block_exit.hpp
   3 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   4 //
   5 // Copyright (c) 2003-2022 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_LOCAL_FREE_ON_BLOCK_EXIT_HPP
  12 #define BOOST_ASIO_DETAIL_LOCAL_FREE_ON_BLOCK_EXIT_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) || defined(__CYGWIN__)
  21 #if !defined(BOOST_ASIO_WINDOWS_APP)
  22
  23 #include <boost/asio/detail/noncopyable.hpp>
  24 #include <boost/asio/detail/socket_types.hpp>
  25
  26 #include <boost/asio/detail/push_options.hpp>
  27
  28 namespace boost {
  29 namespace asio {
  30 namespace detail {
  31
  32 class local_free_on_block_exit
  33   : private noncopyable
  34 {
  35 public:
  36   // Constructor blocks all signals for the calling thread.
  37   explicit local_free_on_block_exit(void* p)
  38     : p_(p)
  39   {
  40   }
  41
  42   // Destructor restores the previous signal mask.
  43   ~local_free_on_block_exit()
  44   {
  45     ::LocalFree(p_);
  46   }
  47
  48 private:
  49   void* p_;
  50 };
  51
  52 } // namespace detail
  53 } // namespace asio
  54 } // namespace boost
  55
  56 #include <boost/asio/detail/pop_options.hpp>
  57
  58 #endif // !defined(BOOST_ASIO_WINDOWS_APP)
  59 #endif // defined(BOOST_ASIO_WINDOWS) || defined(__CYGWIN__)
  60
  61 #endif // BOOST_ASIO_DETAIL_LOCAL_FREE_ON_BLOCK_EXIT_HPP