1 | // |
2 | // detail/wrapped_handler.hpp |
3 | // ~~~~~~~~~~~~~~~~~~~~~~~~~~ |
4 | // |
5 | // Copyright (c) 2003-2015 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_WRAPPED_HANDLER_HPP |
12 | #define BOOST_ASIO_DETAIL_WRAPPED_HANDLER_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/bind_handler.hpp> |
19 | #include <boost/asio/detail/handler_alloc_helpers.hpp> |
20 | #include <boost/asio/detail/handler_cont_helpers.hpp> |
21 | #include <boost/asio/detail/handler_invoke_helpers.hpp> |
22 | |
23 | #include <boost/asio/detail/push_options.hpp> |
24 | |
25 | namespace boost { |
26 | namespace asio { |
27 | namespace detail { |
28 | |
29 | struct is_continuation_delegated |
30 | { |
31 | template <typename Dispatcher, typename Handler> |
32 | bool operator()(Dispatcher&, Handler& handler) const |
33 | { |
34 | return boost_asio_handler_cont_helpers::is_continuation(handler); |
35 | } |
36 | }; |
37 | |
38 | struct is_continuation_if_running |
39 | { |
40 | template <typename Dispatcher, typename Handler> |
41 | bool operator()(Dispatcher& dispatcher, Handler&) const |
42 | { |
43 | return dispatcher.running_in_this_thread(); |
44 | } |
45 | }; |
46 | |
47 | template <typename Dispatcher, typename Handler, |
48 | typename IsContinuation = is_continuation_delegated> |
49 | class wrapped_handler |
50 | { |
51 | public: |
52 | typedef void result_type; |
53 | |
54 | wrapped_handler(Dispatcher dispatcher, Handler& handler) |
55 | : dispatcher_(dispatcher), |
56 | handler_(BOOST_ASIO_MOVE_CAST(Handler)(handler)) |
57 | { |
58 | } |
59 | |
60 | #if defined(BOOST_ASIO_HAS_MOVE) |
61 | wrapped_handler(const wrapped_handler& other) |
62 | : dispatcher_(other.dispatcher_), |
63 | handler_(other.handler_) |
64 | { |
65 | } |
66 | |
67 | wrapped_handler(wrapped_handler&& other) |
68 | : dispatcher_(other.dispatcher_), |
69 | handler_(BOOST_ASIO_MOVE_CAST(Handler)(other.handler_)) |
70 | { |
71 | } |
72 | #endif // defined(BOOST_ASIO_HAS_MOVE) |
73 | |
74 | void operator()() |
75 | { |
76 | dispatcher_.dispatch(BOOST_ASIO_MOVE_CAST(Handler)(handler_)); |
77 | } |
78 | |
79 | void operator()() const |
80 | { |
81 | dispatcher_.dispatch(handler_); |
82 | } |
83 | |
84 | template <typename Arg1> |
85 | void operator()(const Arg1& arg1) |
86 | { |
87 | dispatcher_.dispatch(detail::bind_handler(handler_, arg1)); |
88 | } |
89 | |
90 | template <typename Arg1> |
91 | void operator()(const Arg1& arg1) const |
92 | { |
93 | dispatcher_.dispatch(detail::bind_handler(handler_, arg1)); |
94 | } |
95 | |
96 | template <typename Arg1, typename Arg2> |
97 | void operator()(const Arg1& arg1, const Arg2& arg2) |
98 | { |
99 | dispatcher_.dispatch(detail::bind_handler(handler_, arg1, arg2)); |
100 | } |
101 | |
102 | template <typename Arg1, typename Arg2> |
103 | void operator()(const Arg1& arg1, const Arg2& arg2) const |
104 | { |
105 | dispatcher_.dispatch(detail::bind_handler(handler_, arg1, arg2)); |
106 | } |
107 | |
108 | template <typename Arg1, typename Arg2, typename Arg3> |
109 | void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3) |
110 | { |
111 | dispatcher_.dispatch(detail::bind_handler(handler_, arg1, arg2, arg3)); |
112 | } |
113 | |
114 | template <typename Arg1, typename Arg2, typename Arg3> |
115 | void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3) const |
116 | { |
117 | dispatcher_.dispatch(detail::bind_handler(handler_, arg1, arg2, arg3)); |
118 | } |
119 | |
120 | template <typename Arg1, typename Arg2, typename Arg3, typename Arg4> |
121 | void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3, |
122 | const Arg4& arg4) |
123 | { |
124 | dispatcher_.dispatch( |
125 | detail::bind_handler(handler_, arg1, arg2, arg3, arg4)); |
126 | } |
127 | |
128 | template <typename Arg1, typename Arg2, typename Arg3, typename Arg4> |
129 | void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3, |
130 | const Arg4& arg4) const |
131 | { |
132 | dispatcher_.dispatch( |
133 | detail::bind_handler(handler_, arg1, arg2, arg3, arg4)); |
134 | } |
135 | |
136 | template <typename Arg1, typename Arg2, typename Arg3, typename Arg4, |
137 | typename Arg5> |
138 | void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3, |
139 | const Arg4& arg4, const Arg5& arg5) |
140 | { |
141 | dispatcher_.dispatch( |
142 | detail::bind_handler(handler_, arg1, arg2, arg3, arg4, arg5)); |
143 | } |
144 | |
145 | template <typename Arg1, typename Arg2, typename Arg3, typename Arg4, |
146 | typename Arg5> |
147 | void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3, |
148 | const Arg4& arg4, const Arg5& arg5) const |
149 | { |
150 | dispatcher_.dispatch( |
151 | detail::bind_handler(handler_, arg1, arg2, arg3, arg4, arg5)); |
152 | } |
153 | |
154 | //private: |
155 | Dispatcher dispatcher_; |
156 | Handler handler_; |
157 | }; |
158 | |
159 | template <typename Handler, typename Context> |
160 | class rewrapped_handler |
161 | { |
162 | public: |
163 | explicit rewrapped_handler(Handler& handler, const Context& context) |
164 | : context_(context), |
165 | handler_(BOOST_ASIO_MOVE_CAST(Handler)(handler)) |
166 | { |
167 | } |
168 | |
169 | explicit rewrapped_handler(const Handler& handler, const Context& context) |
170 | : context_(context), |
171 | handler_(handler) |
172 | { |
173 | } |
174 | |
175 | #if defined(BOOST_ASIO_HAS_MOVE) |
176 | rewrapped_handler(const rewrapped_handler& other) |
177 | : context_(other.context_), |
178 | handler_(other.handler_) |
179 | { |
180 | } |
181 | |
182 | rewrapped_handler(rewrapped_handler&& other) |
183 | : context_(BOOST_ASIO_MOVE_CAST(Context)(other.context_)), |
184 | handler_(BOOST_ASIO_MOVE_CAST(Handler)(other.handler_)) |
185 | { |
186 | } |
187 | #endif // defined(BOOST_ASIO_HAS_MOVE) |
188 | |
189 | void operator()() |
190 | { |
191 | handler_(); |
192 | } |
193 | |
194 | void operator()() const |
195 | { |
196 | handler_(); |
197 | } |
198 | |
199 | //private: |
200 | Context context_; |
201 | Handler handler_; |
202 | }; |
203 | |
204 | template <typename Dispatcher, typename Handler, typename IsContinuation> |
205 | inline void* asio_handler_allocate(std::size_t size, |
206 | wrapped_handler<Dispatcher, Handler, IsContinuation>* this_handler) |
207 | { |
208 | return boost_asio_handler_alloc_helpers::allocate( |
209 | size, this_handler->handler_); |
210 | } |
211 | |
212 | template <typename Dispatcher, typename Handler, typename IsContinuation> |
213 | inline void asio_handler_deallocate(void* pointer, std::size_t size, |
214 | wrapped_handler<Dispatcher, Handler, IsContinuation>* this_handler) |
215 | { |
216 | boost_asio_handler_alloc_helpers::deallocate( |
217 | pointer, size, this_handler->handler_); |
218 | } |
219 | |
220 | template <typename Dispatcher, typename Handler, typename IsContinuation> |
221 | inline bool asio_handler_is_continuation( |
222 | wrapped_handler<Dispatcher, Handler, IsContinuation>* this_handler) |
223 | { |
224 | return IsContinuation()(this_handler->dispatcher_, this_handler->handler_); |
225 | } |
226 | |
227 | template <typename Function, typename Dispatcher, |
228 | typename Handler, typename IsContinuation> |
229 | inline void asio_handler_invoke(Function& function, |
230 | wrapped_handler<Dispatcher, Handler, IsContinuation>* this_handler) |
231 | { |
232 | this_handler->dispatcher_.dispatch( |
233 | rewrapped_handler<Function, Handler>( |
234 | function, this_handler->handler_)); |
235 | } |
236 | |
237 | template <typename Function, typename Dispatcher, |
238 | typename Handler, typename IsContinuation> |
239 | inline void asio_handler_invoke(const Function& function, |
240 | wrapped_handler<Dispatcher, Handler, IsContinuation>* this_handler) |
241 | { |
242 | this_handler->dispatcher_.dispatch( |
243 | rewrapped_handler<Function, Handler>( |
244 | function, this_handler->handler_)); |
245 | } |
246 | |
247 | template <typename Handler, typename Context> |
248 | inline void* asio_handler_allocate(std::size_t size, |
249 | rewrapped_handler<Handler, Context>* this_handler) |
250 | { |
251 | return boost_asio_handler_alloc_helpers::allocate( |
252 | size, this_handler->context_); |
253 | } |
254 | |
255 | template <typename Handler, typename Context> |
256 | inline void asio_handler_deallocate(void* pointer, std::size_t size, |
257 | rewrapped_handler<Handler, Context>* this_handler) |
258 | { |
259 | boost_asio_handler_alloc_helpers::deallocate( |
260 | pointer, size, this_handler->context_); |
261 | } |
262 | |
263 | template <typename Dispatcher, typename Context> |
264 | inline bool asio_handler_is_continuation( |
265 | rewrapped_handler<Dispatcher, Context>* this_handler) |
266 | { |
267 | return boost_asio_handler_cont_helpers::is_continuation( |
268 | this_handler->context_); |
269 | } |
270 | |
271 | template <typename Function, typename Handler, typename Context> |
272 | inline void asio_handler_invoke(Function& function, |
273 | rewrapped_handler<Handler, Context>* this_handler) |
274 | { |
275 | boost_asio_handler_invoke_helpers::invoke( |
276 | function, this_handler->context_); |
277 | } |
278 | |
279 | template <typename Function, typename Handler, typename Context> |
280 | inline void asio_handler_invoke(const Function& function, |
281 | rewrapped_handler<Handler, Context>* this_handler) |
282 | { |
283 | boost_asio_handler_invoke_helpers::invoke( |
284 | function, this_handler->context_); |
285 | } |
286 | |
287 | } // namespace detail |
288 | } // namespace asio |
289 | } // namespace boost |
290 | |
291 | #include <boost/asio/detail/pop_options.hpp> |
292 | |
293 | #endif // BOOST_ASIO_DETAIL_WRAPPED_HANDLER_HPP |
294 | |