1 //
2 // impl/io_service.hpp
3 // ~~~~~~~~~~~~~~~~~~~
4 //
5 // Copyright (c) 2003-2016 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_IMPL_IO_SERVICE_HPP
12 #define BOOST_ASIO_IMPL_IO_SERVICE_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/handler_type_requirements.hpp>
19 #include <boost/asio/detail/service_registry.hpp>
20 
21 #include <boost/asio/detail/push_options.hpp>
22 
23 namespace boost {
24 namespace asio {
25 
26 template <typename Service>
use_service(io_service & ios)27 inline Service& use_service(io_service& ios)
28 {
29   // Check that Service meets the necessary type requirements.
30   (void)static_cast<io_service::service*>(static_cast<Service*>(0));
31   (void)static_cast<const io_service::id*>(&Service::id);
32 
33   return ios.service_registry_->template use_service<Service>();
34 }
35 
36 template <>
use_service(io_service & ios)37 inline detail::io_service_impl& use_service<detail::io_service_impl>(
38     io_service& ios)
39 {
40   return ios.impl_;
41 }
42 
43 template <typename Service>
add_service(io_service & ios,Service * svc)44 inline void add_service(io_service& ios, Service* svc)
45 {
46   // Check that Service meets the necessary type requirements.
47   (void)static_cast<io_service::service*>(static_cast<Service*>(0));
48   (void)static_cast<const io_service::id*>(&Service::id);
49 
50   ios.service_registry_->template add_service<Service>(svc);
51 }
52 
53 template <typename Service>
has_service(io_service & ios)54 inline bool has_service(io_service& ios)
55 {
56   // Check that Service meets the necessary type requirements.
57   (void)static_cast<io_service::service*>(static_cast<Service*>(0));
58   (void)static_cast<const io_service::id*>(&Service::id);
59 
60   return ios.service_registry_->template has_service<Service>();
61 }
62 
63 } // namespace asio
64 } // namespace boost
65 
66 #include <boost/asio/detail/pop_options.hpp>
67 
68 #if defined(BOOST_ASIO_HAS_IOCP)
69 # include <boost/asio/detail/win_iocp_io_service.hpp>
70 #else
71 # include <boost/asio/detail/task_io_service.hpp>
72 #endif
73 
74 #include <boost/asio/detail/push_options.hpp>
75 
76 namespace boost {
77 namespace asio {
78 
79 template <typename CompletionHandler>
BOOST_ASIO_INITFN_RESULT_TYPE(CompletionHandler,void ())80 inline BOOST_ASIO_INITFN_RESULT_TYPE(CompletionHandler, void ())
81 io_service::dispatch(BOOST_ASIO_MOVE_ARG(CompletionHandler) handler)
82 {
83   // If you get an error on the following line it means that your handler does
84   // not meet the documented type requirements for a CompletionHandler.
85   BOOST_ASIO_COMPLETION_HANDLER_CHECK(CompletionHandler, handler) type_check;
86 
87   detail::async_result_init<
88     CompletionHandler, void ()> init(
89       BOOST_ASIO_MOVE_CAST(CompletionHandler)(handler));
90 
91   impl_.dispatch(init.handler);
92 
93   return init.result.get();
94 }
95 
96 template <typename CompletionHandler>
BOOST_ASIO_INITFN_RESULT_TYPE(CompletionHandler,void ())97 inline BOOST_ASIO_INITFN_RESULT_TYPE(CompletionHandler, void ())
98 io_service::post(BOOST_ASIO_MOVE_ARG(CompletionHandler) handler)
99 {
100   // If you get an error on the following line it means that your handler does
101   // not meet the documented type requirements for a CompletionHandler.
102   BOOST_ASIO_COMPLETION_HANDLER_CHECK(CompletionHandler, handler) type_check;
103 
104   detail::async_result_init<
105     CompletionHandler, void ()> init(
106       BOOST_ASIO_MOVE_CAST(CompletionHandler)(handler));
107 
108   impl_.post(init.handler);
109 
110   return init.result.get();
111 }
112 
113 template <typename Handler>
114 #if defined(GENERATING_DOCUMENTATION)
115 unspecified
116 #else
117 inline detail::wrapped_handler<io_service&, Handler>
118 #endif
wrap(Handler handler)119 io_service::wrap(Handler handler)
120 {
121   return detail::wrapped_handler<io_service&, Handler>(*this, handler);
122 }
123 
work(boost::asio::io_service & io_service)124 inline io_service::work::work(boost::asio::io_service& io_service)
125   : io_service_impl_(io_service.impl_)
126 {
127   io_service_impl_.work_started();
128 }
129 
work(const work & other)130 inline io_service::work::work(const work& other)
131   : io_service_impl_(other.io_service_impl_)
132 {
133   io_service_impl_.work_started();
134 }
135 
~work()136 inline io_service::work::~work()
137 {
138   io_service_impl_.work_finished();
139 }
140 
get_io_service()141 inline boost::asio::io_service& io_service::work::get_io_service()
142 {
143   return io_service_impl_.get_io_service();
144 }
145 
get_io_service()146 inline boost::asio::io_service& io_service::service::get_io_service()
147 {
148   return owner_;
149 }
150 
151 } // namespace asio
152 } // namespace boost
153 
154 #include <boost/asio/detail/pop_options.hpp>
155 
156 #endif // BOOST_ASIO_IMPL_IO_SERVICE_HPP
157