ceph/src/boost/libs/dll/example/tutorial8/refcounting_plugin.cpp

   1 // Copyright 2014 Renato Tegon Forti, Antony Polukhin.
   2 // Copyright 2015-2017 Antony Polukhin.
   3 //
   4 // Distributed under the Boost Software License, Version 1.0.
   5 // (See accompanying file LICENSE_1_0.txt
   6 // or copy at http://www.boost.org/LICENSE_1_0.txt)
   7
   8 // MinGW related workaround
   9 #define BOOST_DLL_FORCE_ALIAS_INSTANTIATION
  10
  11 //[plugcpp_my_plugin_refcounting
  12 #include "refcounting_plugin.hpp"
  13 #include <boost/dll/runtime_symbol_info.hpp> // for this_line_location()
  14
  15 namespace my_namespace {
  16
  17 class my_plugin_refcounting : public my_refcounting_api {
  18 public:
  19     // Must be instantiated in plugin
  20     boost::filesystem::path location() const {
  21         return boost::dll::this_line_location(); // location of this plugin
  22     }
  23
  24     std::string name() const {
  25         return "refcounting";
  26     }
  27
  28     // ...
  29     //<-
  30     // This block is invisible for Quickbook documentation
  31     float calculate(float /*x*/, float /*y*/) {
  32         return 0;
  33     }
  34     //->
  35 };
  36
  37 } // namespace my_namespace
  38
  39 // Factory method. Returns *simple pointer*!
  40 my_refcounting_api* create() {
  41     return new my_namespace::my_plugin_refcounting();
  42 }
  43
  44 //]
  45
  46
  47