ceph/src/boost/boost/asio/ssl/detail/password_callback.hpp

   1 //
   2 // ssl/detail/password_callback.hpp
   3 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   4 //
   5 // Copyright (c) 2003-2019 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_SSL_DETAIL_PASSWORD_CALLBACK_HPP
  12 #define BOOST_ASIO_SSL_DETAIL_PASSWORD_CALLBACK_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 #include <cstddef>
  21 #include <string>
  22 #include <boost/asio/ssl/context_base.hpp>
  23
  24 #include <boost/asio/detail/push_options.hpp>
  25
  26 namespace boost {
  27 namespace asio {
  28 namespace ssl {
  29 namespace detail {
  30
  31 class password_callback_base
  32 {
  33 public:
  34   virtual ~password_callback_base()
  35   {
  36   }
  37
  38   virtual std::string call(std::size_t size,
  39       context_base::password_purpose purpose) = 0;
  40 };
  41
  42 template <typename PasswordCallback>
  43 class password_callback : public password_callback_base
  44 {
  45 public:
  46   explicit password_callback(PasswordCallback callback)
  47     : callback_(callback)
  48   {
  49   }
  50
  51   virtual std::string call(std::size_t size,
  52       context_base::password_purpose purpose)
  53   {
  54     return callback_(size, purpose);
  55   }
  56
  57 private:
  58   PasswordCallback callback_;
  59 };
  60
  61 } // namespace detail
  62 } // namespace ssl
  63 } // namespace asio
  64 } // namespace boost
  65
  66 #include <boost/asio/detail/pop_options.hpp>
  67
  68 #endif // BOOST_ASIO_SSL_DETAIL_PASSWORD_CALLBACK_HPP