ceph/src/boost/boost/process/detail/handler_base.hpp

   1 // Copyright (c) 2006, 2007 Julio M. Merino Vidal
   2 // Copyright (c) 2008 Ilya Sokolov, Boris Schaeling
   3 // Copyright (c) 2009 Boris Schaeling
   4 // Copyright (c) 2010 Felipe Tanus, Boris Schaeling
   5 // Copyright (c) 2011, 2012 Jeff Flinn, Boris Schaeling
   6 // Copyright (c) 2016 Klemens D. Morgenstern
   7 //
   8 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   9 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  10
  11 #ifndef BOOST_PROCESS_DETAIL_HANDLER_BASE_HPP
  12 #define BOOST_PROCESS_DETAIL_HANDLER_BASE_HPP
  13
  14 #include <system_error>
  15
  16 namespace boost { namespace process { namespace detail {
  17
  18 template<template <class> class Template>
  19 struct make_handler_t
  20 {
  21     constexpr make_handler_t() {}
  22     template<typename Handler>
  23     constexpr Template<Handler> operator()(Handler handler) const {return Template<Handler>(handler);}
  24     template<typename Handler>
  25     constexpr Template<Handler> operator= (Handler handler) const {return Template<Handler>(handler);}
  26     template<typename Handler>
  27     constexpr Template<Handler> operator+=(Handler handler) const {return Template<Handler>(handler);}
  28 };
  29
  30
  31 struct handler_base
  32 {
  33     using resource_type = void;
  34
  35     template <class Executor>
  36     void on_setup(Executor&) const {}
  37
  38     template <class Executor>
  39     void on_error(Executor&, const std::error_code &) const {}
  40
  41     template <class Executor>
  42     void on_success(Executor&) const {}
  43
  44 };
  45
  46
  47 }}}
  48
  49 #endif