bind_handler.hpp 31 KB

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  1. //
  2. // detail/bind_handler.hpp
  3. // ~~~~~~~~~~~~~~~~~~~~~~~
  4. //
  5. // Copyright (c) 2003-2022 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. #ifndef ASIO_DETAIL_BIND_HANDLER_HPP
  11. #define ASIO_DETAIL_BIND_HANDLER_HPP
  12. #if defined(_MSC_VER) && (_MSC_VER >= 1200)
  13. # pragma once
  14. #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
  15. #include "asio/detail/config.hpp"
  16. #include "asio/associator.hpp"
  17. #include "asio/detail/handler_alloc_helpers.hpp"
  18. #include "asio/detail/handler_cont_helpers.hpp"
  19. #include "asio/detail/handler_invoke_helpers.hpp"
  20. #include "asio/detail/type_traits.hpp"
  21. #include "asio/detail/push_options.hpp"
  22. namespace asio {
  23. namespace detail {
  24. template <typename Handler>
  25. class binder0
  26. {
  27. public:
  28. template <typename T>
  29. binder0(int, ASIO_MOVE_ARG(T) handler)
  30. : handler_(ASIO_MOVE_CAST(T)(handler))
  31. {
  32. }
  33. binder0(Handler& handler)
  34. : handler_(ASIO_MOVE_CAST(Handler)(handler))
  35. {
  36. }
  37. #if defined(ASIO_HAS_MOVE)
  38. binder0(const binder0& other)
  39. : handler_(other.handler_)
  40. {
  41. }
  42. binder0(binder0&& other)
  43. : handler_(ASIO_MOVE_CAST(Handler)(other.handler_))
  44. {
  45. }
  46. #endif // defined(ASIO_HAS_MOVE)
  47. void operator()()
  48. {
  49. ASIO_MOVE_OR_LVALUE(Handler)(handler_)();
  50. }
  51. void operator()() const
  52. {
  53. handler_();
  54. }
  55. //private:
  56. Handler handler_;
  57. };
  58. template <typename Handler>
  59. inline asio_handler_allocate_is_deprecated
  60. asio_handler_allocate(std::size_t size,
  61. binder0<Handler>* this_handler)
  62. {
  63. #if defined(ASIO_NO_DEPRECATED)
  64. asio_handler_alloc_helpers::allocate(size, this_handler->handler_);
  65. return asio_handler_allocate_is_no_longer_used();
  66. #else // defined(ASIO_NO_DEPRECATED)
  67. return asio_handler_alloc_helpers::allocate(
  68. size, this_handler->handler_);
  69. #endif // defined(ASIO_NO_DEPRECATED)
  70. }
  71. template <typename Handler>
  72. inline asio_handler_deallocate_is_deprecated
  73. asio_handler_deallocate(void* pointer, std::size_t size,
  74. binder0<Handler>* this_handler)
  75. {
  76. asio_handler_alloc_helpers::deallocate(
  77. pointer, size, this_handler->handler_);
  78. #if defined(ASIO_NO_DEPRECATED)
  79. return asio_handler_deallocate_is_no_longer_used();
  80. #endif // defined(ASIO_NO_DEPRECATED)
  81. }
  82. template <typename Handler>
  83. inline bool asio_handler_is_continuation(
  84. binder0<Handler>* this_handler)
  85. {
  86. return asio_handler_cont_helpers::is_continuation(
  87. this_handler->handler_);
  88. }
  89. template <typename Function, typename Handler>
  90. inline asio_handler_invoke_is_deprecated
  91. asio_handler_invoke(Function& function,
  92. binder0<Handler>* this_handler)
  93. {
  94. asio_handler_invoke_helpers::invoke(
  95. function, this_handler->handler_);
  96. #if defined(ASIO_NO_DEPRECATED)
  97. return asio_handler_invoke_is_no_longer_used();
  98. #endif // defined(ASIO_NO_DEPRECATED)
  99. }
  100. template <typename Function, typename Handler>
  101. inline asio_handler_invoke_is_deprecated
  102. asio_handler_invoke(const Function& function,
  103. binder0<Handler>* this_handler)
  104. {
  105. asio_handler_invoke_helpers::invoke(
  106. function, this_handler->handler_);
  107. #if defined(ASIO_NO_DEPRECATED)
  108. return asio_handler_invoke_is_no_longer_used();
  109. #endif // defined(ASIO_NO_DEPRECATED)
  110. }
  111. template <typename Handler>
  112. inline binder0<typename decay<Handler>::type> bind_handler(
  113. ASIO_MOVE_ARG(Handler) handler)
  114. {
  115. return binder0<typename decay<Handler>::type>(
  116. 0, ASIO_MOVE_CAST(Handler)(handler));
  117. }
  118. template <typename Handler, typename Arg1>
  119. class binder1
  120. {
  121. public:
  122. template <typename T>
  123. binder1(int, ASIO_MOVE_ARG(T) handler, const Arg1& arg1)
  124. : handler_(ASIO_MOVE_CAST(T)(handler)),
  125. arg1_(arg1)
  126. {
  127. }
  128. binder1(Handler& handler, const Arg1& arg1)
  129. : handler_(ASIO_MOVE_CAST(Handler)(handler)),
  130. arg1_(arg1)
  131. {
  132. }
  133. #if defined(ASIO_HAS_MOVE)
  134. binder1(const binder1& other)
  135. : handler_(other.handler_),
  136. arg1_(other.arg1_)
  137. {
  138. }
  139. binder1(binder1&& other)
  140. : handler_(ASIO_MOVE_CAST(Handler)(other.handler_)),
  141. arg1_(ASIO_MOVE_CAST(Arg1)(other.arg1_))
  142. {
  143. }
  144. #endif // defined(ASIO_HAS_MOVE)
  145. void operator()()
  146. {
  147. ASIO_MOVE_OR_LVALUE(Handler)(handler_)(
  148. static_cast<const Arg1&>(arg1_));
  149. }
  150. void operator()() const
  151. {
  152. handler_(arg1_);
  153. }
  154. //private:
  155. Handler handler_;
  156. Arg1 arg1_;
  157. };
  158. template <typename Handler, typename Arg1>
  159. inline asio_handler_allocate_is_deprecated
  160. asio_handler_allocate(std::size_t size,
  161. binder1<Handler, Arg1>* this_handler)
  162. {
  163. #if defined(ASIO_NO_DEPRECATED)
  164. asio_handler_alloc_helpers::allocate(size, this_handler->handler_);
  165. return asio_handler_allocate_is_no_longer_used();
  166. #else // defined(ASIO_NO_DEPRECATED)
  167. return asio_handler_alloc_helpers::allocate(
  168. size, this_handler->handler_);
  169. #endif // defined(ASIO_NO_DEPRECATED)
  170. }
  171. template <typename Handler, typename Arg1>
  172. inline asio_handler_deallocate_is_deprecated
  173. asio_handler_deallocate(void* pointer, std::size_t size,
  174. binder1<Handler, Arg1>* this_handler)
  175. {
  176. asio_handler_alloc_helpers::deallocate(
  177. pointer, size, this_handler->handler_);
  178. #if defined(ASIO_NO_DEPRECATED)
  179. return asio_handler_deallocate_is_no_longer_used();
  180. #endif // defined(ASIO_NO_DEPRECATED)
  181. }
  182. template <typename Handler, typename Arg1>
  183. inline bool asio_handler_is_continuation(
  184. binder1<Handler, Arg1>* this_handler)
  185. {
  186. return asio_handler_cont_helpers::is_continuation(
  187. this_handler->handler_);
  188. }
  189. template <typename Function, typename Handler, typename Arg1>
  190. inline asio_handler_invoke_is_deprecated
  191. asio_handler_invoke(Function& function,
  192. binder1<Handler, Arg1>* this_handler)
  193. {
  194. asio_handler_invoke_helpers::invoke(
  195. function, this_handler->handler_);
  196. #if defined(ASIO_NO_DEPRECATED)
  197. return asio_handler_invoke_is_no_longer_used();
  198. #endif // defined(ASIO_NO_DEPRECATED)
  199. }
  200. template <typename Function, typename Handler, typename Arg1>
  201. inline asio_handler_invoke_is_deprecated
  202. asio_handler_invoke(const Function& function,
  203. binder1<Handler, Arg1>* this_handler)
  204. {
  205. asio_handler_invoke_helpers::invoke(
  206. function, this_handler->handler_);
  207. #if defined(ASIO_NO_DEPRECATED)
  208. return asio_handler_invoke_is_no_longer_used();
  209. #endif // defined(ASIO_NO_DEPRECATED)
  210. }
  211. template <typename Handler, typename Arg1>
  212. inline binder1<typename decay<Handler>::type, Arg1> bind_handler(
  213. ASIO_MOVE_ARG(Handler) handler, const Arg1& arg1)
  214. {
  215. return binder1<typename decay<Handler>::type, Arg1>(0,
  216. ASIO_MOVE_CAST(Handler)(handler), arg1);
  217. }
  218. template <typename Handler, typename Arg1, typename Arg2>
  219. class binder2
  220. {
  221. public:
  222. template <typename T>
  223. binder2(int, ASIO_MOVE_ARG(T) handler,
  224. const Arg1& arg1, const Arg2& arg2)
  225. : handler_(ASIO_MOVE_CAST(T)(handler)),
  226. arg1_(arg1),
  227. arg2_(arg2)
  228. {
  229. }
  230. binder2(Handler& handler, const Arg1& arg1, const Arg2& arg2)
  231. : handler_(ASIO_MOVE_CAST(Handler)(handler)),
  232. arg1_(arg1),
  233. arg2_(arg2)
  234. {
  235. }
  236. #if defined(ASIO_HAS_MOVE)
  237. binder2(const binder2& other)
  238. : handler_(other.handler_),
  239. arg1_(other.arg1_),
  240. arg2_(other.arg2_)
  241. {
  242. }
  243. binder2(binder2&& other)
  244. : handler_(ASIO_MOVE_CAST(Handler)(other.handler_)),
  245. arg1_(ASIO_MOVE_CAST(Arg1)(other.arg1_)),
  246. arg2_(ASIO_MOVE_CAST(Arg2)(other.arg2_))
  247. {
  248. }
  249. #endif // defined(ASIO_HAS_MOVE)
  250. void operator()()
  251. {
  252. ASIO_MOVE_OR_LVALUE(Handler)(handler_)(
  253. static_cast<const Arg1&>(arg1_),
  254. static_cast<const Arg2&>(arg2_));
  255. }
  256. void operator()() const
  257. {
  258. handler_(arg1_, arg2_);
  259. }
  260. //private:
  261. Handler handler_;
  262. Arg1 arg1_;
  263. Arg2 arg2_;
  264. };
  265. template <typename Handler, typename Arg1, typename Arg2>
  266. inline asio_handler_allocate_is_deprecated
  267. asio_handler_allocate(std::size_t size,
  268. binder2<Handler, Arg1, Arg2>* this_handler)
  269. {
  270. #if defined(ASIO_NO_DEPRECATED)
  271. asio_handler_alloc_helpers::allocate(size, this_handler->handler_);
  272. return asio_handler_allocate_is_no_longer_used();
  273. #else // defined(ASIO_NO_DEPRECATED)
  274. return asio_handler_alloc_helpers::allocate(
  275. size, this_handler->handler_);
  276. #endif // defined(ASIO_NO_DEPRECATED)
  277. }
  278. template <typename Handler, typename Arg1, typename Arg2>
  279. inline asio_handler_deallocate_is_deprecated
  280. asio_handler_deallocate(void* pointer, std::size_t size,
  281. binder2<Handler, Arg1, Arg2>* this_handler)
  282. {
  283. asio_handler_alloc_helpers::deallocate(
  284. pointer, size, this_handler->handler_);
  285. #if defined(ASIO_NO_DEPRECATED)
  286. return asio_handler_deallocate_is_no_longer_used();
  287. #endif // defined(ASIO_NO_DEPRECATED)
  288. }
  289. template <typename Handler, typename Arg1, typename Arg2>
  290. inline bool asio_handler_is_continuation(
  291. binder2<Handler, Arg1, Arg2>* this_handler)
  292. {
  293. return asio_handler_cont_helpers::is_continuation(
  294. this_handler->handler_);
  295. }
  296. template <typename Function, typename Handler, typename Arg1, typename Arg2>
  297. inline asio_handler_invoke_is_deprecated
  298. asio_handler_invoke(Function& function,
  299. binder2<Handler, Arg1, Arg2>* this_handler)
  300. {
  301. asio_handler_invoke_helpers::invoke(
  302. function, this_handler->handler_);
  303. #if defined(ASIO_NO_DEPRECATED)
  304. return asio_handler_invoke_is_no_longer_used();
  305. #endif // defined(ASIO_NO_DEPRECATED)
  306. }
  307. template <typename Function, typename Handler, typename Arg1, typename Arg2>
  308. inline asio_handler_invoke_is_deprecated
  309. asio_handler_invoke(const Function& function,
  310. binder2<Handler, Arg1, Arg2>* this_handler)
  311. {
  312. asio_handler_invoke_helpers::invoke(
  313. function, this_handler->handler_);
  314. #if defined(ASIO_NO_DEPRECATED)
  315. return asio_handler_invoke_is_no_longer_used();
  316. #endif // defined(ASIO_NO_DEPRECATED)
  317. }
  318. template <typename Handler, typename Arg1, typename Arg2>
  319. inline binder2<typename decay<Handler>::type, Arg1, Arg2> bind_handler(
  320. ASIO_MOVE_ARG(Handler) handler, const Arg1& arg1, const Arg2& arg2)
  321. {
  322. return binder2<typename decay<Handler>::type, Arg1, Arg2>(0,
  323. ASIO_MOVE_CAST(Handler)(handler), arg1, arg2);
  324. }
  325. template <typename Handler, typename Arg1, typename Arg2, typename Arg3>
  326. class binder3
  327. {
  328. public:
  329. template <typename T>
  330. binder3(int, ASIO_MOVE_ARG(T) handler, const Arg1& arg1,
  331. const Arg2& arg2, const Arg3& arg3)
  332. : handler_(ASIO_MOVE_CAST(T)(handler)),
  333. arg1_(arg1),
  334. arg2_(arg2),
  335. arg3_(arg3)
  336. {
  337. }
  338. binder3(Handler& handler, const Arg1& arg1,
  339. const Arg2& arg2, const Arg3& arg3)
  340. : handler_(ASIO_MOVE_CAST(Handler)(handler)),
  341. arg1_(arg1),
  342. arg2_(arg2),
  343. arg3_(arg3)
  344. {
  345. }
  346. #if defined(ASIO_HAS_MOVE)
  347. binder3(const binder3& other)
  348. : handler_(other.handler_),
  349. arg1_(other.arg1_),
  350. arg2_(other.arg2_),
  351. arg3_(other.arg3_)
  352. {
  353. }
  354. binder3(binder3&& other)
  355. : handler_(ASIO_MOVE_CAST(Handler)(other.handler_)),
  356. arg1_(ASIO_MOVE_CAST(Arg1)(other.arg1_)),
  357. arg2_(ASIO_MOVE_CAST(Arg2)(other.arg2_)),
  358. arg3_(ASIO_MOVE_CAST(Arg3)(other.arg3_))
  359. {
  360. }
  361. #endif // defined(ASIO_HAS_MOVE)
  362. void operator()()
  363. {
  364. ASIO_MOVE_OR_LVALUE(Handler)(handler_)(
  365. static_cast<const Arg1&>(arg1_),
  366. static_cast<const Arg2&>(arg2_),
  367. static_cast<const Arg3&>(arg3_));
  368. }
  369. void operator()() const
  370. {
  371. handler_(arg1_, arg2_, arg3_);
  372. }
  373. //private:
  374. Handler handler_;
  375. Arg1 arg1_;
  376. Arg2 arg2_;
  377. Arg3 arg3_;
  378. };
  379. template <typename Handler, typename Arg1, typename Arg2, typename Arg3>
  380. inline asio_handler_allocate_is_deprecated
  381. asio_handler_allocate(std::size_t size,
  382. binder3<Handler, Arg1, Arg2, Arg3>* this_handler)
  383. {
  384. #if defined(ASIO_NO_DEPRECATED)
  385. asio_handler_alloc_helpers::allocate(size, this_handler->handler_);
  386. return asio_handler_allocate_is_no_longer_used();
  387. #else // defined(ASIO_NO_DEPRECATED)
  388. return asio_handler_alloc_helpers::allocate(
  389. size, this_handler->handler_);
  390. #endif // defined(ASIO_NO_DEPRECATED)
  391. }
  392. template <typename Handler, typename Arg1, typename Arg2, typename Arg3>
  393. inline asio_handler_deallocate_is_deprecated
  394. asio_handler_deallocate(void* pointer, std::size_t size,
  395. binder3<Handler, Arg1, Arg2, Arg3>* this_handler)
  396. {
  397. asio_handler_alloc_helpers::deallocate(
  398. pointer, size, this_handler->handler_);
  399. #if defined(ASIO_NO_DEPRECATED)
  400. return asio_handler_deallocate_is_no_longer_used();
  401. #endif // defined(ASIO_NO_DEPRECATED)
  402. }
  403. template <typename Handler, typename Arg1, typename Arg2, typename Arg3>
  404. inline bool asio_handler_is_continuation(
  405. binder3<Handler, Arg1, Arg2, Arg3>* this_handler)
  406. {
  407. return asio_handler_cont_helpers::is_continuation(
  408. this_handler->handler_);
  409. }
  410. template <typename Function, typename Handler,
  411. typename Arg1, typename Arg2, typename Arg3>
  412. inline asio_handler_invoke_is_deprecated
  413. asio_handler_invoke(Function& function,
  414. binder3<Handler, Arg1, Arg2, Arg3>* this_handler)
  415. {
  416. asio_handler_invoke_helpers::invoke(
  417. function, this_handler->handler_);
  418. #if defined(ASIO_NO_DEPRECATED)
  419. return asio_handler_invoke_is_no_longer_used();
  420. #endif // defined(ASIO_NO_DEPRECATED)
  421. }
  422. template <typename Function, typename Handler,
  423. typename Arg1, typename Arg2, typename Arg3>
  424. inline asio_handler_invoke_is_deprecated
  425. asio_handler_invoke(const Function& function,
  426. binder3<Handler, Arg1, Arg2, Arg3>* this_handler)
  427. {
  428. asio_handler_invoke_helpers::invoke(
  429. function, this_handler->handler_);
  430. #if defined(ASIO_NO_DEPRECATED)
  431. return asio_handler_invoke_is_no_longer_used();
  432. #endif // defined(ASIO_NO_DEPRECATED)
  433. }
  434. template <typename Handler, typename Arg1, typename Arg2, typename Arg3>
  435. inline binder3<typename decay<Handler>::type, Arg1, Arg2, Arg3> bind_handler(
  436. ASIO_MOVE_ARG(Handler) handler, const Arg1& arg1, const Arg2& arg2,
  437. const Arg3& arg3)
  438. {
  439. return binder3<typename decay<Handler>::type, Arg1, Arg2, Arg3>(0,
  440. ASIO_MOVE_CAST(Handler)(handler), arg1, arg2, arg3);
  441. }
  442. template <typename Handler, typename Arg1,
  443. typename Arg2, typename Arg3, typename Arg4>
  444. class binder4
  445. {
  446. public:
  447. template <typename T>
  448. binder4(int, ASIO_MOVE_ARG(T) handler, const Arg1& arg1,
  449. const Arg2& arg2, const Arg3& arg3, const Arg4& arg4)
  450. : handler_(ASIO_MOVE_CAST(T)(handler)),
  451. arg1_(arg1),
  452. arg2_(arg2),
  453. arg3_(arg3),
  454. arg4_(arg4)
  455. {
  456. }
  457. binder4(Handler& handler, const Arg1& arg1,
  458. const Arg2& arg2, const Arg3& arg3, const Arg4& arg4)
  459. : handler_(ASIO_MOVE_CAST(Handler)(handler)),
  460. arg1_(arg1),
  461. arg2_(arg2),
  462. arg3_(arg3),
  463. arg4_(arg4)
  464. {
  465. }
  466. #if defined(ASIO_HAS_MOVE)
  467. binder4(const binder4& other)
  468. : handler_(other.handler_),
  469. arg1_(other.arg1_),
  470. arg2_(other.arg2_),
  471. arg3_(other.arg3_),
  472. arg4_(other.arg4_)
  473. {
  474. }
  475. binder4(binder4&& other)
  476. : handler_(ASIO_MOVE_CAST(Handler)(other.handler_)),
  477. arg1_(ASIO_MOVE_CAST(Arg1)(other.arg1_)),
  478. arg2_(ASIO_MOVE_CAST(Arg2)(other.arg2_)),
  479. arg3_(ASIO_MOVE_CAST(Arg3)(other.arg3_)),
  480. arg4_(ASIO_MOVE_CAST(Arg4)(other.arg4_))
  481. {
  482. }
  483. #endif // defined(ASIO_HAS_MOVE)
  484. void operator()()
  485. {
  486. ASIO_MOVE_OR_LVALUE(Handler)(handler_)(
  487. static_cast<const Arg1&>(arg1_),
  488. static_cast<const Arg2&>(arg2_),
  489. static_cast<const Arg3&>(arg3_),
  490. static_cast<const Arg4&>(arg4_));
  491. }
  492. void operator()() const
  493. {
  494. handler_(arg1_, arg2_, arg3_, arg4_);
  495. }
  496. //private:
  497. Handler handler_;
  498. Arg1 arg1_;
  499. Arg2 arg2_;
  500. Arg3 arg3_;
  501. Arg4 arg4_;
  502. };
  503. template <typename Handler, typename Arg1,
  504. typename Arg2, typename Arg3, typename Arg4>
  505. inline asio_handler_allocate_is_deprecated
  506. asio_handler_allocate(std::size_t size,
  507. binder4<Handler, Arg1, Arg2, Arg3, Arg4>* this_handler)
  508. {
  509. #if defined(ASIO_NO_DEPRECATED)
  510. asio_handler_alloc_helpers::allocate(size, this_handler->handler_);
  511. return asio_handler_allocate_is_no_longer_used();
  512. #else // defined(ASIO_NO_DEPRECATED)
  513. return asio_handler_alloc_helpers::allocate(
  514. size, this_handler->handler_);
  515. #endif // defined(ASIO_NO_DEPRECATED)
  516. }
  517. template <typename Handler, typename Arg1,
  518. typename Arg2, typename Arg3, typename Arg4>
  519. inline asio_handler_deallocate_is_deprecated
  520. asio_handler_deallocate(void* pointer, std::size_t size,
  521. binder4<Handler, Arg1, Arg2, Arg3, Arg4>* this_handler)
  522. {
  523. asio_handler_alloc_helpers::deallocate(
  524. pointer, size, this_handler->handler_);
  525. #if defined(ASIO_NO_DEPRECATED)
  526. return asio_handler_deallocate_is_no_longer_used();
  527. #endif // defined(ASIO_NO_DEPRECATED)
  528. }
  529. template <typename Handler, typename Arg1,
  530. typename Arg2, typename Arg3, typename Arg4>
  531. inline bool asio_handler_is_continuation(
  532. binder4<Handler, Arg1, Arg2, Arg3, Arg4>* this_handler)
  533. {
  534. return asio_handler_cont_helpers::is_continuation(
  535. this_handler->handler_);
  536. }
  537. template <typename Function, typename Handler, typename Arg1,
  538. typename Arg2, typename Arg3, typename Arg4>
  539. inline asio_handler_invoke_is_deprecated
  540. asio_handler_invoke(Function& function,
  541. binder4<Handler, Arg1, Arg2, Arg3, Arg4>* this_handler)
  542. {
  543. asio_handler_invoke_helpers::invoke(
  544. function, this_handler->handler_);
  545. #if defined(ASIO_NO_DEPRECATED)
  546. return asio_handler_invoke_is_no_longer_used();
  547. #endif // defined(ASIO_NO_DEPRECATED)
  548. }
  549. template <typename Function, typename Handler, typename Arg1,
  550. typename Arg2, typename Arg3, typename Arg4>
  551. inline asio_handler_invoke_is_deprecated
  552. asio_handler_invoke(const Function& function,
  553. binder4<Handler, Arg1, Arg2, Arg3, Arg4>* this_handler)
  554. {
  555. asio_handler_invoke_helpers::invoke(
  556. function, this_handler->handler_);
  557. #if defined(ASIO_NO_DEPRECATED)
  558. return asio_handler_invoke_is_no_longer_used();
  559. #endif // defined(ASIO_NO_DEPRECATED)
  560. }
  561. template <typename Handler, typename Arg1,
  562. typename Arg2, typename Arg3, typename Arg4>
  563. inline binder4<typename decay<Handler>::type, Arg1, Arg2, Arg3, Arg4>
  564. bind_handler(ASIO_MOVE_ARG(Handler) handler, const Arg1& arg1,
  565. const Arg2& arg2, const Arg3& arg3, const Arg4& arg4)
  566. {
  567. return binder4<typename decay<Handler>::type, Arg1, Arg2, Arg3, Arg4>(0,
  568. ASIO_MOVE_CAST(Handler)(handler), arg1, arg2, arg3, arg4);
  569. }
  570. template <typename Handler, typename Arg1, typename Arg2,
  571. typename Arg3, typename Arg4, typename Arg5>
  572. class binder5
  573. {
  574. public:
  575. template <typename T>
  576. binder5(int, ASIO_MOVE_ARG(T) handler, const Arg1& arg1,
  577. const Arg2& arg2, const Arg3& arg3, const Arg4& arg4, const Arg5& arg5)
  578. : handler_(ASIO_MOVE_CAST(T)(handler)),
  579. arg1_(arg1),
  580. arg2_(arg2),
  581. arg3_(arg3),
  582. arg4_(arg4),
  583. arg5_(arg5)
  584. {
  585. }
  586. binder5(Handler& handler, const Arg1& arg1, const Arg2& arg2,
  587. const Arg3& arg3, const Arg4& arg4, const Arg5& arg5)
  588. : handler_(ASIO_MOVE_CAST(Handler)(handler)),
  589. arg1_(arg1),
  590. arg2_(arg2),
  591. arg3_(arg3),
  592. arg4_(arg4),
  593. arg5_(arg5)
  594. {
  595. }
  596. #if defined(ASIO_HAS_MOVE)
  597. binder5(const binder5& other)
  598. : handler_(other.handler_),
  599. arg1_(other.arg1_),
  600. arg2_(other.arg2_),
  601. arg3_(other.arg3_),
  602. arg4_(other.arg4_),
  603. arg5_(other.arg5_)
  604. {
  605. }
  606. binder5(binder5&& other)
  607. : handler_(ASIO_MOVE_CAST(Handler)(other.handler_)),
  608. arg1_(ASIO_MOVE_CAST(Arg1)(other.arg1_)),
  609. arg2_(ASIO_MOVE_CAST(Arg2)(other.arg2_)),
  610. arg3_(ASIO_MOVE_CAST(Arg3)(other.arg3_)),
  611. arg4_(ASIO_MOVE_CAST(Arg4)(other.arg4_)),
  612. arg5_(ASIO_MOVE_CAST(Arg5)(other.arg5_))
  613. {
  614. }
  615. #endif // defined(ASIO_HAS_MOVE)
  616. void operator()()
  617. {
  618. ASIO_MOVE_OR_LVALUE(Handler)(handler_)(
  619. static_cast<const Arg1&>(arg1_),
  620. static_cast<const Arg2&>(arg2_),
  621. static_cast<const Arg3&>(arg3_),
  622. static_cast<const Arg4&>(arg4_),
  623. static_cast<const Arg5&>(arg5_));
  624. }
  625. void operator()() const
  626. {
  627. handler_(arg1_, arg2_, arg3_, arg4_, arg5_);
  628. }
  629. //private:
  630. Handler handler_;
  631. Arg1 arg1_;
  632. Arg2 arg2_;
  633. Arg3 arg3_;
  634. Arg4 arg4_;
  635. Arg5 arg5_;
  636. };
  637. template <typename Handler, typename Arg1, typename Arg2,
  638. typename Arg3, typename Arg4, typename Arg5>
  639. inline asio_handler_allocate_is_deprecated
  640. asio_handler_allocate(std::size_t size,
  641. binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>* this_handler)
  642. {
  643. #if defined(ASIO_NO_DEPRECATED)
  644. asio_handler_alloc_helpers::allocate(size, this_handler->handler_);
  645. return asio_handler_allocate_is_no_longer_used();
  646. #else // defined(ASIO_NO_DEPRECATED)
  647. return asio_handler_alloc_helpers::allocate(
  648. size, this_handler->handler_);
  649. #endif // defined(ASIO_NO_DEPRECATED)
  650. }
  651. template <typename Handler, typename Arg1, typename Arg2,
  652. typename Arg3, typename Arg4, typename Arg5>
  653. inline asio_handler_deallocate_is_deprecated
  654. asio_handler_deallocate(void* pointer, std::size_t size,
  655. binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>* this_handler)
  656. {
  657. asio_handler_alloc_helpers::deallocate(
  658. pointer, size, this_handler->handler_);
  659. #if defined(ASIO_NO_DEPRECATED)
  660. return asio_handler_deallocate_is_no_longer_used();
  661. #endif // defined(ASIO_NO_DEPRECATED)
  662. }
  663. template <typename Handler, typename Arg1, typename Arg2,
  664. typename Arg3, typename Arg4, typename Arg5>
  665. inline bool asio_handler_is_continuation(
  666. binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>* this_handler)
  667. {
  668. return asio_handler_cont_helpers::is_continuation(
  669. this_handler->handler_);
  670. }
  671. template <typename Function, typename Handler, typename Arg1,
  672. typename Arg2, typename Arg3, typename Arg4, typename Arg5>
  673. inline asio_handler_invoke_is_deprecated
  674. asio_handler_invoke(Function& function,
  675. binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>* this_handler)
  676. {
  677. asio_handler_invoke_helpers::invoke(
  678. function, this_handler->handler_);
  679. #if defined(ASIO_NO_DEPRECATED)
  680. return asio_handler_invoke_is_no_longer_used();
  681. #endif // defined(ASIO_NO_DEPRECATED)
  682. }
  683. template <typename Function, typename Handler, typename Arg1,
  684. typename Arg2, typename Arg3, typename Arg4, typename Arg5>
  685. inline asio_handler_invoke_is_deprecated
  686. asio_handler_invoke(const Function& function,
  687. binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>* this_handler)
  688. {
  689. asio_handler_invoke_helpers::invoke(
  690. function, this_handler->handler_);
  691. #if defined(ASIO_NO_DEPRECATED)
  692. return asio_handler_invoke_is_no_longer_used();
  693. #endif // defined(ASIO_NO_DEPRECATED)
  694. }
  695. template <typename Handler, typename Arg1, typename Arg2,
  696. typename Arg3, typename Arg4, typename Arg5>
  697. inline binder5<typename decay<Handler>::type, Arg1, Arg2, Arg3, Arg4, Arg5>
  698. bind_handler(ASIO_MOVE_ARG(Handler) handler, const Arg1& arg1,
  699. const Arg2& arg2, const Arg3& arg3, const Arg4& arg4, const Arg5& arg5)
  700. {
  701. return binder5<typename decay<Handler>::type, Arg1, Arg2, Arg3, Arg4, Arg5>(0,
  702. ASIO_MOVE_CAST(Handler)(handler), arg1, arg2, arg3, arg4, arg5);
  703. }
  704. #if defined(ASIO_HAS_MOVE)
  705. template <typename Handler, typename Arg1>
  706. class move_binder1
  707. {
  708. public:
  709. move_binder1(int, ASIO_MOVE_ARG(Handler) handler,
  710. ASIO_MOVE_ARG(Arg1) arg1)
  711. : handler_(ASIO_MOVE_CAST(Handler)(handler)),
  712. arg1_(ASIO_MOVE_CAST(Arg1)(arg1))
  713. {
  714. }
  715. move_binder1(move_binder1&& other)
  716. : handler_(ASIO_MOVE_CAST(Handler)(other.handler_)),
  717. arg1_(ASIO_MOVE_CAST(Arg1)(other.arg1_))
  718. {
  719. }
  720. void operator()()
  721. {
  722. ASIO_MOVE_OR_LVALUE(Handler)(handler_)(
  723. ASIO_MOVE_CAST(Arg1)(arg1_));
  724. }
  725. //private:
  726. Handler handler_;
  727. Arg1 arg1_;
  728. };
  729. template <typename Handler, typename Arg1>
  730. inline asio_handler_allocate_is_deprecated
  731. asio_handler_allocate(std::size_t size,
  732. move_binder1<Handler, Arg1>* this_handler)
  733. {
  734. #if defined(ASIO_NO_DEPRECATED)
  735. asio_handler_alloc_helpers::allocate(size, this_handler->handler_);
  736. return asio_handler_allocate_is_no_longer_used();
  737. #else // defined(ASIO_NO_DEPRECATED)
  738. return asio_handler_alloc_helpers::allocate(
  739. size, this_handler->handler_);
  740. #endif // defined(ASIO_NO_DEPRECATED)
  741. }
  742. template <typename Handler, typename Arg1>
  743. inline asio_handler_deallocate_is_deprecated
  744. asio_handler_deallocate(void* pointer, std::size_t size,
  745. move_binder1<Handler, Arg1>* this_handler)
  746. {
  747. asio_handler_alloc_helpers::deallocate(
  748. pointer, size, this_handler->handler_);
  749. #if defined(ASIO_NO_DEPRECATED)
  750. return asio_handler_deallocate_is_no_longer_used();
  751. #endif // defined(ASIO_NO_DEPRECATED)
  752. }
  753. template <typename Handler, typename Arg1>
  754. inline bool asio_handler_is_continuation(
  755. move_binder1<Handler, Arg1>* this_handler)
  756. {
  757. return asio_handler_cont_helpers::is_continuation(
  758. this_handler->handler_);
  759. }
  760. template <typename Function, typename Handler, typename Arg1>
  761. inline asio_handler_invoke_is_deprecated
  762. asio_handler_invoke(ASIO_MOVE_ARG(Function) function,
  763. move_binder1<Handler, Arg1>* this_handler)
  764. {
  765. asio_handler_invoke_helpers::invoke(
  766. ASIO_MOVE_CAST(Function)(function), this_handler->handler_);
  767. #if defined(ASIO_NO_DEPRECATED)
  768. return asio_handler_invoke_is_no_longer_used();
  769. #endif // defined(ASIO_NO_DEPRECATED)
  770. }
  771. template <typename Handler, typename Arg1, typename Arg2>
  772. class move_binder2
  773. {
  774. public:
  775. move_binder2(int, ASIO_MOVE_ARG(Handler) handler,
  776. const Arg1& arg1, ASIO_MOVE_ARG(Arg2) arg2)
  777. : handler_(ASIO_MOVE_CAST(Handler)(handler)),
  778. arg1_(arg1),
  779. arg2_(ASIO_MOVE_CAST(Arg2)(arg2))
  780. {
  781. }
  782. move_binder2(move_binder2&& other)
  783. : handler_(ASIO_MOVE_CAST(Handler)(other.handler_)),
  784. arg1_(ASIO_MOVE_CAST(Arg1)(other.arg1_)),
  785. arg2_(ASIO_MOVE_CAST(Arg2)(other.arg2_))
  786. {
  787. }
  788. void operator()()
  789. {
  790. ASIO_MOVE_OR_LVALUE(Handler)(handler_)(
  791. static_cast<const Arg1&>(arg1_),
  792. ASIO_MOVE_CAST(Arg2)(arg2_));
  793. }
  794. //private:
  795. Handler handler_;
  796. Arg1 arg1_;
  797. Arg2 arg2_;
  798. };
  799. template <typename Handler, typename Arg1, typename Arg2>
  800. inline asio_handler_allocate_is_deprecated
  801. asio_handler_allocate(std::size_t size,
  802. move_binder2<Handler, Arg1, Arg2>* this_handler)
  803. {
  804. #if defined(ASIO_NO_DEPRECATED)
  805. asio_handler_alloc_helpers::allocate(size, this_handler->handler_);
  806. return asio_handler_allocate_is_no_longer_used();
  807. #else // defined(ASIO_NO_DEPRECATED)
  808. return asio_handler_alloc_helpers::allocate(
  809. size, this_handler->handler_);
  810. #endif // defined(ASIO_NO_DEPRECATED)
  811. }
  812. template <typename Handler, typename Arg1, typename Arg2>
  813. inline asio_handler_deallocate_is_deprecated
  814. asio_handler_deallocate(void* pointer, std::size_t size,
  815. move_binder2<Handler, Arg1, Arg2>* this_handler)
  816. {
  817. asio_handler_alloc_helpers::deallocate(
  818. pointer, size, this_handler->handler_);
  819. #if defined(ASIO_NO_DEPRECATED)
  820. return asio_handler_deallocate_is_no_longer_used();
  821. #endif // defined(ASIO_NO_DEPRECATED)
  822. }
  823. template <typename Handler, typename Arg1, typename Arg2>
  824. inline bool asio_handler_is_continuation(
  825. move_binder2<Handler, Arg1, Arg2>* this_handler)
  826. {
  827. return asio_handler_cont_helpers::is_continuation(
  828. this_handler->handler_);
  829. }
  830. template <typename Function, typename Handler, typename Arg1, typename Arg2>
  831. inline asio_handler_invoke_is_deprecated
  832. asio_handler_invoke(ASIO_MOVE_ARG(Function) function,
  833. move_binder2<Handler, Arg1, Arg2>* this_handler)
  834. {
  835. asio_handler_invoke_helpers::invoke(
  836. ASIO_MOVE_CAST(Function)(function), this_handler->handler_);
  837. #if defined(ASIO_NO_DEPRECATED)
  838. return asio_handler_invoke_is_no_longer_used();
  839. #endif // defined(ASIO_NO_DEPRECATED)
  840. }
  841. #endif // defined(ASIO_HAS_MOVE)
  842. } // namespace detail
  843. template <template <typename, typename> class Associator,
  844. typename Handler, typename DefaultCandidate>
  845. struct associator<Associator,
  846. detail::binder0<Handler>, DefaultCandidate>
  847. : Associator<Handler, DefaultCandidate>
  848. {
  849. static typename Associator<Handler, DefaultCandidate>::type get(
  850. const detail::binder0<Handler>& h,
  851. const DefaultCandidate& c = DefaultCandidate()) ASIO_NOEXCEPT
  852. {
  853. return Associator<Handler, DefaultCandidate>::get(h.handler_, c);
  854. }
  855. };
  856. template <template <typename, typename> class Associator,
  857. typename Handler, typename Arg1, typename DefaultCandidate>
  858. struct associator<Associator,
  859. detail::binder1<Handler, Arg1>, DefaultCandidate>
  860. : Associator<Handler, DefaultCandidate>
  861. {
  862. static typename Associator<Handler, DefaultCandidate>::type get(
  863. const detail::binder1<Handler, Arg1>& h,
  864. const DefaultCandidate& c = DefaultCandidate()) ASIO_NOEXCEPT
  865. {
  866. return Associator<Handler, DefaultCandidate>::get(h.handler_, c);
  867. }
  868. };
  869. template <template <typename, typename> class Associator,
  870. typename Handler, typename Arg1, typename Arg2,
  871. typename DefaultCandidate>
  872. struct associator<Associator,
  873. detail::binder2<Handler, Arg1, Arg2>, DefaultCandidate>
  874. : Associator<Handler, DefaultCandidate>
  875. {
  876. static typename Associator<Handler, DefaultCandidate>::type get(
  877. const detail::binder2<Handler, Arg1, Arg2>& h,
  878. const DefaultCandidate& c = DefaultCandidate()) ASIO_NOEXCEPT
  879. {
  880. return Associator<Handler, DefaultCandidate>::get(h.handler_, c);
  881. }
  882. };
  883. template <template <typename, typename> class Associator,
  884. typename Handler, typename Arg1, typename Arg2, typename Arg3,
  885. typename DefaultCandidate>
  886. struct associator<Associator,
  887. detail::binder3<Handler, Arg1, Arg2, Arg3>, DefaultCandidate>
  888. : Associator<Handler, DefaultCandidate>
  889. {
  890. static typename Associator<Handler, DefaultCandidate>::type get(
  891. const detail::binder3<Handler, Arg1, Arg2, Arg3>& h,
  892. const DefaultCandidate& c = DefaultCandidate()) ASIO_NOEXCEPT
  893. {
  894. return Associator<Handler, DefaultCandidate>::get(h.handler_, c);
  895. }
  896. };
  897. template <template <typename, typename> class Associator,
  898. typename Handler, typename Arg1, typename Arg2, typename Arg3,
  899. typename Arg4, typename DefaultCandidate>
  900. struct associator<Associator,
  901. detail::binder4<Handler, Arg1, Arg2, Arg3, Arg4>, DefaultCandidate>
  902. : Associator<Handler, DefaultCandidate>
  903. {
  904. static typename Associator<Handler, DefaultCandidate>::type get(
  905. const detail::binder4<Handler, Arg1, Arg2, Arg3, Arg4>& h,
  906. const DefaultCandidate& c = DefaultCandidate()) ASIO_NOEXCEPT
  907. {
  908. return Associator<Handler, DefaultCandidate>::get(h.handler_, c);
  909. }
  910. };
  911. template <template <typename, typename> class Associator,
  912. typename Handler, typename Arg1, typename Arg2, typename Arg3,
  913. typename Arg4, typename Arg5, typename DefaultCandidate>
  914. struct associator<Associator,
  915. detail::binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>, DefaultCandidate>
  916. : Associator<Handler, DefaultCandidate>
  917. {
  918. static typename Associator<Handler, DefaultCandidate>::type get(
  919. const detail::binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>& h,
  920. const DefaultCandidate& c = DefaultCandidate()) ASIO_NOEXCEPT
  921. {
  922. return Associator<Handler, DefaultCandidate>::get(h.handler_, c);
  923. }
  924. };
  925. #if defined(ASIO_HAS_MOVE)
  926. template <template <typename, typename> class Associator,
  927. typename Handler, typename Arg1, typename DefaultCandidate>
  928. struct associator<Associator,
  929. detail::move_binder1<Handler, Arg1>, DefaultCandidate>
  930. : Associator<Handler, DefaultCandidate>
  931. {
  932. static typename Associator<Handler, DefaultCandidate>::type get(
  933. const detail::move_binder1<Handler, Arg1>& h,
  934. const DefaultCandidate& c = DefaultCandidate()) ASIO_NOEXCEPT
  935. {
  936. return Associator<Handler, DefaultCandidate>::get(h.handler_, c);
  937. }
  938. };
  939. template <template <typename, typename> class Associator,
  940. typename Handler, typename Arg1, typename Arg2,
  941. typename DefaultCandidate>
  942. struct associator<Associator,
  943. detail::move_binder2<Handler, Arg1, Arg2>, DefaultCandidate>
  944. : Associator<Handler, DefaultCandidate>
  945. {
  946. static typename Associator<Handler, DefaultCandidate>::type get(
  947. const detail::move_binder2<Handler, Arg1, Arg2>& h,
  948. const DefaultCandidate& c = DefaultCandidate()) ASIO_NOEXCEPT
  949. {
  950. return Associator<Handler, DefaultCandidate>::get(h.handler_, c);
  951. }
  952. };
  953. #endif // defined(ASIO_HAS_MOVE)
  954. } // namespace asio
  955. #include "asio/detail/pop_options.hpp"
  956. #endif // ASIO_DETAIL_BIND_HANDLER_HPP