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1 | |
2 | // Copyright Oliver Kowalke 2009. | |
3 | // Distributed under the Boost Software License, Version 1.0. | |
4 | // (See accompanying file LICENSE_1_0.txt or copy at | |
5 | // http://www.boost.org/LICENSE_1_0.txt) | |
6 | ||
7 | #ifndef BOOST_COROUTINES_ASYMMETRIC_COROUTINE_H | |
8 | #define BOOST_COROUTINES_ASYMMETRIC_COROUTINE_H | |
9 | ||
7c673cae FG |
10 | #include <cstddef> |
11 | #include <iterator> | |
12 | #include <memory> | |
13 | ||
14 | #include <boost/assert.hpp> | |
15 | #include <boost/config.hpp> | |
16 | #include <boost/move/move.hpp> | |
7c673cae FG |
17 | #include <boost/throw_exception.hpp> |
18 | #include <boost/utility/explicit_operator_bool.hpp> | |
19 | ||
20 | #include <boost/coroutine/attributes.hpp> | |
21 | #include <boost/coroutine/detail/config.hpp> | |
22 | #include <boost/coroutine/detail/coroutine_context.hpp> | |
23 | #include <boost/coroutine/detail/parameters.hpp> | |
24 | #include <boost/coroutine/exceptions.hpp> | |
25 | #include <boost/coroutine/stack_allocator.hpp> | |
26 | #include <boost/coroutine/detail/pull_coroutine_impl.hpp> | |
27 | #include <boost/coroutine/detail/pull_coroutine_object.hpp> | |
28 | #include <boost/coroutine/detail/pull_coroutine_synthesized.hpp> | |
29 | #include <boost/coroutine/detail/push_coroutine_impl.hpp> | |
30 | #include <boost/coroutine/detail/push_coroutine_object.hpp> | |
31 | #include <boost/coroutine/detail/push_coroutine_synthesized.hpp> | |
32 | #include <boost/coroutine/stack_context.hpp> | |
33 | ||
34 | #ifdef BOOST_HAS_ABI_HEADERS | |
35 | # include BOOST_ABI_PREFIX | |
36 | #endif | |
37 | ||
38 | namespace boost { | |
39 | namespace coroutines { | |
40 | ||
41 | template< typename R > | |
42 | class pull_coroutine; | |
43 | ||
44 | template< typename Arg > | |
45 | class push_coroutine | |
46 | { | |
47 | private: | |
48 | template< typename V, typename X, typename Y, typename Z > | |
49 | friend class detail::pull_coroutine_object; | |
50 | ||
51 | typedef detail::push_coroutine_impl< Arg > impl_type; | |
52 | typedef detail::push_coroutine_synthesized< Arg > synth_type; | |
53 | typedef detail::parameters< Arg > param_type; | |
54 | ||
55 | struct dummy {}; | |
56 | ||
57 | impl_type * impl_; | |
58 | ||
59 | BOOST_MOVABLE_BUT_NOT_COPYABLE( push_coroutine) | |
60 | ||
61 | explicit push_coroutine( detail::synthesized_t::flag_t, impl_type & impl) : | |
62 | impl_( & impl) | |
63 | { BOOST_ASSERT( impl_); } | |
64 | ||
65 | public: | |
66 | push_coroutine() BOOST_NOEXCEPT : | |
67 | impl_( 0) | |
68 | {} | |
69 | ||
70 | #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES | |
71 | # ifdef BOOST_MSVC | |
72 | typedef void ( * coroutine_fn)( pull_coroutine< Arg > &); | |
73 | ||
74 | explicit push_coroutine( coroutine_fn, | |
75 | attributes const& = attributes() ); | |
76 | ||
77 | template< typename StackAllocator > | |
78 | explicit push_coroutine( coroutine_fn, | |
79 | attributes const&, | |
80 | StackAllocator); | |
81 | # endif | |
82 | template< typename Fn > | |
83 | explicit push_coroutine( BOOST_RV_REF( Fn), | |
84 | attributes const& = attributes() ); | |
85 | ||
86 | template< typename Fn, typename StackAllocator > | |
87 | explicit push_coroutine( BOOST_RV_REF( Fn), | |
88 | attributes const&, | |
89 | StackAllocator); | |
90 | #else | |
91 | template< typename Fn > | |
92 | explicit push_coroutine( Fn fn, | |
93 | attributes const& = attributes() ); | |
94 | ||
95 | template< typename Fn, typename StackAllocator > | |
96 | explicit push_coroutine( Fn fn, | |
97 | attributes const&, | |
98 | StackAllocator); | |
99 | ||
100 | template< typename Fn > | |
101 | explicit push_coroutine( BOOST_RV_REF( Fn), | |
102 | attributes const& = attributes() ); | |
103 | ||
104 | template< typename Fn, typename StackAllocator > | |
105 | explicit push_coroutine( BOOST_RV_REF( Fn), | |
106 | attributes const&, | |
107 | StackAllocator); | |
108 | #endif | |
109 | ||
110 | ~push_coroutine() | |
111 | { | |
112 | if ( 0 != impl_) | |
113 | { | |
114 | impl_->destroy(); | |
115 | impl_ = 0; | |
116 | } | |
117 | } | |
118 | ||
119 | push_coroutine( BOOST_RV_REF( push_coroutine) other) BOOST_NOEXCEPT : | |
120 | impl_( 0) | |
121 | { swap( other); } | |
122 | ||
123 | push_coroutine & operator=( BOOST_RV_REF( push_coroutine) other) BOOST_NOEXCEPT | |
124 | { | |
125 | push_coroutine tmp( boost::move( other) ); | |
126 | swap( tmp); | |
127 | return * this; | |
128 | } | |
129 | ||
130 | BOOST_EXPLICIT_OPERATOR_BOOL(); | |
131 | ||
132 | bool operator!() const BOOST_NOEXCEPT | |
133 | { return 0 == impl_ || impl_->is_complete(); } | |
134 | ||
135 | void swap( push_coroutine & other) BOOST_NOEXCEPT | |
136 | { std::swap( impl_, other.impl_); } | |
137 | ||
138 | push_coroutine & operator()( Arg arg) | |
139 | { | |
140 | BOOST_ASSERT( * this); | |
141 | ||
142 | impl_->push( arg); | |
143 | return * this; | |
144 | } | |
145 | ||
11fdf7f2 | 146 | class iterator |
7c673cae FG |
147 | { |
148 | private: | |
149 | push_coroutine< Arg > * c_; | |
150 | ||
151 | public: | |
11fdf7f2 TL |
152 | typedef std::output_iterator_tag iterator_category; |
153 | typedef void value_type; | |
154 | typedef void difference_type; | |
155 | typedef void pointer; | |
156 | typedef void reference; | |
157 | ||
7c673cae FG |
158 | iterator() : |
159 | c_( 0) | |
160 | {} | |
161 | ||
162 | explicit iterator( push_coroutine< Arg > * c) : | |
163 | c_( c) | |
164 | {} | |
165 | ||
166 | iterator & operator=( Arg a) | |
167 | { | |
168 | BOOST_ASSERT( c_); | |
169 | if ( ! ( * c_)( a) ) c_ = 0; | |
170 | return * this; | |
171 | } | |
172 | ||
173 | bool operator==( iterator const& other) const | |
174 | { return other.c_ == c_; } | |
175 | ||
176 | bool operator!=( iterator const& other) const | |
177 | { return other.c_ != c_; } | |
178 | ||
179 | iterator & operator*() | |
180 | { return * this; } | |
181 | ||
182 | iterator & operator++() | |
183 | { return * this; } | |
184 | }; | |
185 | ||
186 | struct const_iterator; | |
187 | }; | |
188 | ||
189 | template< typename Arg > | |
190 | class push_coroutine< Arg & > | |
191 | { | |
192 | private: | |
193 | template< typename V, typename X, typename Y, typename Z > | |
194 | friend class detail::pull_coroutine_object; | |
195 | ||
196 | typedef detail::push_coroutine_impl< Arg & > impl_type; | |
197 | typedef detail::push_coroutine_synthesized< Arg & > synth_type; | |
198 | typedef detail::parameters< Arg & > param_type; | |
199 | ||
200 | struct dummy {}; | |
201 | ||
202 | impl_type * impl_; | |
203 | ||
204 | BOOST_MOVABLE_BUT_NOT_COPYABLE( push_coroutine) | |
205 | ||
206 | explicit push_coroutine( detail::synthesized_t::flag_t, impl_type & impl) : | |
207 | impl_( & impl) | |
208 | { BOOST_ASSERT( impl_); } | |
209 | ||
210 | public: | |
211 | push_coroutine() BOOST_NOEXCEPT : | |
212 | impl_( 0) | |
213 | {} | |
214 | ||
215 | #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES | |
216 | # ifdef BOOST_MSVC | |
217 | typedef void ( * coroutine_fn)( pull_coroutine< Arg & > &); | |
218 | ||
219 | explicit push_coroutine( coroutine_fn, | |
220 | attributes const& = attributes() ); | |
221 | ||
222 | template< typename StackAllocator > | |
223 | explicit push_coroutine( coroutine_fn, | |
224 | attributes const&, | |
225 | StackAllocator); | |
226 | # endif | |
227 | template< typename Fn > | |
228 | explicit push_coroutine( BOOST_RV_REF( Fn), | |
229 | attributes const& = attributes() ); | |
230 | ||
231 | template< typename Fn, typename StackAllocator > | |
232 | explicit push_coroutine( BOOST_RV_REF( Fn), | |
233 | attributes const&, | |
234 | StackAllocator); | |
235 | #else | |
236 | template< typename Fn > | |
237 | explicit push_coroutine( Fn, | |
238 | attributes const& = attributes() ); | |
239 | ||
240 | template< typename Fn, typename StackAllocator > | |
241 | explicit push_coroutine( Fn, | |
242 | attributes const&, | |
243 | StackAllocator); | |
244 | ||
245 | template< typename Fn > | |
246 | explicit push_coroutine( BOOST_RV_REF( Fn), | |
247 | attributes const& = attributes() ); | |
248 | ||
249 | template< typename Fn, typename StackAllocator > | |
250 | explicit push_coroutine( BOOST_RV_REF( Fn), | |
251 | attributes const&, | |
252 | StackAllocator); | |
253 | #endif | |
254 | ||
255 | ~push_coroutine() | |
256 | { | |
257 | if ( 0 != impl_) | |
258 | { | |
259 | impl_->destroy(); | |
260 | impl_ = 0; | |
261 | } | |
262 | } | |
263 | ||
264 | push_coroutine( BOOST_RV_REF( push_coroutine) other) BOOST_NOEXCEPT : | |
265 | impl_( 0) | |
266 | { swap( other); } | |
267 | ||
268 | push_coroutine & operator=( BOOST_RV_REF( push_coroutine) other) BOOST_NOEXCEPT | |
269 | { | |
270 | push_coroutine tmp( boost::move( other) ); | |
271 | swap( tmp); | |
272 | return * this; | |
273 | } | |
274 | ||
275 | BOOST_EXPLICIT_OPERATOR_BOOL(); | |
276 | ||
277 | bool operator!() const BOOST_NOEXCEPT | |
278 | { return 0 == impl_ || impl_->is_complete(); } | |
279 | ||
280 | void swap( push_coroutine & other) BOOST_NOEXCEPT | |
281 | { std::swap( impl_, other.impl_); } | |
282 | ||
283 | push_coroutine & operator()( Arg & arg) | |
284 | { | |
285 | BOOST_ASSERT( * this); | |
286 | ||
287 | impl_->push( arg); | |
288 | return * this; | |
289 | } | |
290 | ||
11fdf7f2 | 291 | class iterator |
7c673cae FG |
292 | { |
293 | private: | |
294 | push_coroutine< Arg & > * c_; | |
295 | ||
296 | public: | |
11fdf7f2 TL |
297 | typedef std::output_iterator_tag iterator_category; |
298 | typedef void value_type; | |
299 | typedef void difference_type; | |
300 | typedef void pointer; | |
301 | typedef void reference; | |
302 | ||
7c673cae FG |
303 | iterator() : |
304 | c_( 0) | |
305 | {} | |
306 | ||
307 | explicit iterator( push_coroutine< Arg & > * c) : | |
308 | c_( c) | |
309 | {} | |
310 | ||
311 | iterator & operator=( Arg & a) | |
312 | { | |
313 | BOOST_ASSERT( c_); | |
314 | if ( ! ( * c_)( a) ) c_ = 0; | |
315 | return * this; | |
316 | } | |
317 | ||
318 | bool operator==( iterator const& other) const | |
319 | { return other.c_ == c_; } | |
320 | ||
321 | bool operator!=( iterator const& other) const | |
322 | { return other.c_ != c_; } | |
323 | ||
324 | iterator & operator*() | |
325 | { return * this; } | |
326 | ||
327 | iterator & operator++() | |
328 | { return * this; } | |
329 | }; | |
330 | ||
331 | struct const_iterator; | |
332 | }; | |
333 | ||
334 | template<> | |
335 | class push_coroutine< void > | |
336 | { | |
337 | private: | |
338 | template< typename V, typename X, typename Y, typename Z > | |
339 | friend class detail::pull_coroutine_object; | |
340 | ||
341 | typedef detail::push_coroutine_impl< void > impl_type; | |
342 | typedef detail::push_coroutine_synthesized< void > synth_type; | |
343 | typedef detail::parameters< void > param_type; | |
344 | ||
345 | struct dummy {}; | |
346 | ||
347 | impl_type * impl_; | |
348 | ||
349 | BOOST_MOVABLE_BUT_NOT_COPYABLE( push_coroutine) | |
350 | ||
351 | explicit push_coroutine( detail::synthesized_t::flag_t, impl_type & impl) : | |
352 | impl_( & impl) | |
353 | { BOOST_ASSERT( impl_); } | |
354 | ||
355 | public: | |
356 | push_coroutine() BOOST_NOEXCEPT : | |
357 | impl_( 0) | |
358 | {} | |
359 | ||
360 | #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES | |
361 | # ifdef BOOST_MSVC | |
362 | typedef void ( * coroutine_fn)( pull_coroutine< void > &); | |
363 | ||
364 | explicit push_coroutine( coroutine_fn, | |
365 | attributes const& = attributes() ); | |
366 | ||
367 | template< typename StackAllocator > | |
368 | explicit push_coroutine( coroutine_fn, | |
369 | attributes const&, | |
370 | StackAllocator); | |
371 | # endif | |
372 | template< typename Fn > | |
373 | explicit push_coroutine( BOOST_RV_REF( Fn), | |
374 | attributes const& = attributes() ); | |
375 | ||
376 | template< typename Fn, typename StackAllocator > | |
377 | explicit push_coroutine( BOOST_RV_REF( Fn), | |
378 | attributes const&, | |
379 | StackAllocator); | |
380 | #else | |
381 | template< typename Fn > | |
382 | explicit push_coroutine( Fn, | |
383 | attributes const& = attributes() ); | |
384 | ||
385 | template< typename Fn, typename StackAllocator > | |
386 | explicit push_coroutine( Fn, | |
387 | attributes const&, | |
388 | StackAllocator); | |
389 | ||
390 | template< typename Fn > | |
391 | explicit push_coroutine( BOOST_RV_REF( Fn), | |
392 | attributes const& = attributes() ); | |
393 | ||
394 | template< typename Fn, typename StackAllocator > | |
395 | explicit push_coroutine( BOOST_RV_REF( Fn), | |
396 | attributes const&, | |
397 | StackAllocator); | |
398 | #endif | |
399 | ||
400 | ~push_coroutine() | |
401 | { | |
402 | if ( 0 != impl_) | |
403 | { | |
404 | impl_->destroy(); | |
405 | impl_ = 0; | |
406 | } | |
407 | } | |
408 | ||
409 | inline push_coroutine( BOOST_RV_REF( push_coroutine) other) BOOST_NOEXCEPT : | |
410 | impl_( 0) | |
411 | { swap( other); } | |
412 | ||
413 | inline push_coroutine & operator=( BOOST_RV_REF( push_coroutine) other) BOOST_NOEXCEPT | |
414 | { | |
415 | push_coroutine tmp( boost::move( other) ); | |
416 | swap( tmp); | |
417 | return * this; | |
418 | } | |
419 | ||
420 | BOOST_EXPLICIT_OPERATOR_BOOL(); | |
421 | ||
422 | inline bool operator!() const BOOST_NOEXCEPT | |
423 | { return 0 == impl_ || impl_->is_complete(); } | |
424 | ||
425 | inline void swap( push_coroutine & other) BOOST_NOEXCEPT | |
426 | { std::swap( impl_, other.impl_); } | |
427 | ||
428 | inline push_coroutine & operator()() | |
429 | { | |
430 | BOOST_ASSERT( * this); | |
431 | ||
432 | impl_->push(); | |
433 | return * this; | |
434 | } | |
435 | ||
436 | struct iterator; | |
437 | struct const_iterator; | |
438 | }; | |
439 | ||
440 | ||
441 | ||
442 | template< typename R > | |
443 | class pull_coroutine | |
444 | { | |
445 | private: | |
446 | template< typename V, typename X, typename Y, typename Z > | |
447 | friend class detail::push_coroutine_object; | |
448 | ||
449 | typedef detail::pull_coroutine_impl< R > impl_type; | |
450 | typedef detail::pull_coroutine_synthesized< R > synth_type; | |
451 | typedef detail::parameters< R > param_type; | |
452 | ||
453 | struct dummy {}; | |
454 | ||
455 | impl_type * impl_; | |
456 | ||
457 | BOOST_MOVABLE_BUT_NOT_COPYABLE( pull_coroutine) | |
458 | ||
459 | explicit pull_coroutine( detail::synthesized_t::flag_t, impl_type & impl) : | |
460 | impl_( & impl) | |
461 | { BOOST_ASSERT( impl_); } | |
462 | ||
463 | public: | |
464 | pull_coroutine() BOOST_NOEXCEPT : | |
465 | impl_( 0) | |
466 | {} | |
467 | ||
468 | #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES | |
469 | # ifdef BOOST_MSVC | |
470 | typedef void ( * coroutine_fn)( push_coroutine< R > &); | |
471 | ||
472 | explicit pull_coroutine( coroutine_fn fn, | |
473 | attributes const& attrs = attributes() ) : | |
474 | impl_( 0) | |
475 | { | |
476 | // create a stack-context | |
477 | stack_context stack_ctx; | |
478 | stack_allocator stack_alloc; | |
479 | // allocate the coroutine-stack | |
480 | stack_alloc.allocate( stack_ctx, attrs.size); | |
481 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
482 | // typedef of internal coroutine-type | |
483 | typedef detail::pull_coroutine_object< | |
484 | push_coroutine< R >, R, coroutine_fn, stack_allocator | |
485 | > object_t; | |
486 | // reserve space on top of coroutine-stack for internal coroutine-type | |
487 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
488 | BOOST_ASSERT( 0 != size); | |
489 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
490 | BOOST_ASSERT( 0 != sp); | |
491 | // placement new for internal coroutine | |
492 | impl_ = new ( sp) object_t( | |
493 | boost::forward< coroutine_fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
494 | BOOST_ASSERT( impl_); | |
495 | impl_->pull(); | |
496 | } | |
497 | ||
498 | template< typename StackAllocator > | |
499 | explicit pull_coroutine( coroutine_fn fn, | |
500 | attributes const& attrs, | |
501 | StackAllocator stack_alloc) : | |
502 | impl_( 0) | |
503 | { | |
504 | // create a stack-context | |
505 | stack_context stack_ctx; | |
506 | // allocate the coroutine-stack | |
507 | stack_alloc.allocate( stack_ctx, attrs.size); | |
508 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
509 | // typedef of internal coroutine-type | |
510 | typedef detail::pull_coroutine_object< | |
511 | push_coroutine< R >, R, coroutine_fn, StackAllocator | |
512 | > object_t; | |
513 | // reserve space on top of coroutine-stack for internal coroutine-type | |
514 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
515 | BOOST_ASSERT( 0 != size); | |
516 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
517 | BOOST_ASSERT( 0 != sp); | |
518 | // placement new for internal coroutine | |
519 | impl_ = new ( sp) object_t( | |
520 | boost::forward< coroutine_fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
521 | BOOST_ASSERT( impl_); | |
522 | impl_->pull(); | |
523 | } | |
524 | # endif | |
525 | template< typename Fn > | |
526 | explicit pull_coroutine( BOOST_RV_REF( Fn) fn, | |
527 | attributes const& attrs = attributes() ) : | |
528 | impl_( 0) | |
529 | { | |
530 | // create a stack-context | |
531 | stack_context stack_ctx; | |
532 | stack_allocator stack_alloc; | |
533 | // allocate the coroutine-stack | |
534 | stack_alloc.allocate( stack_ctx, attrs.size); | |
535 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
536 | // typedef of internal coroutine-type | |
537 | typedef detail::pull_coroutine_object< | |
538 | push_coroutine< R >, R, Fn, stack_allocator | |
539 | > object_t; | |
540 | // reserve space on top of coroutine-stack for internal coroutine-type | |
541 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
542 | BOOST_ASSERT( 0 != size); | |
543 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
544 | BOOST_ASSERT( 0 != sp); | |
545 | // placement new for internal coroutine | |
546 | impl_ = new ( sp) object_t( | |
547 | boost::forward< Fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
548 | BOOST_ASSERT( impl_); | |
549 | impl_->pull(); | |
550 | } | |
551 | ||
552 | template< typename Fn, typename StackAllocator > | |
553 | explicit pull_coroutine( BOOST_RV_REF( Fn) fn, | |
554 | attributes const& attrs, | |
555 | StackAllocator stack_alloc) : | |
556 | impl_( 0) | |
557 | { | |
558 | // create a stack-context | |
559 | stack_context stack_ctx; | |
560 | // allocate the coroutine-stack | |
561 | stack_alloc.allocate( stack_ctx, attrs.size); | |
562 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
563 | // typedef of internal coroutine-type | |
564 | typedef detail::pull_coroutine_object< | |
565 | push_coroutine< R >, R, Fn, StackAllocator | |
566 | > object_t; | |
567 | // reserve space on top of coroutine-stack for internal coroutine-type | |
568 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
569 | BOOST_ASSERT( 0 != size); | |
570 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
571 | BOOST_ASSERT( 0 != sp); | |
572 | // placement new for internal coroutine | |
573 | impl_ = new ( sp) object_t( | |
574 | boost::forward< Fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
575 | BOOST_ASSERT( impl_); | |
576 | impl_->pull(); | |
577 | } | |
578 | #else | |
579 | template< typename Fn > | |
580 | explicit pull_coroutine( Fn fn, | |
581 | attributes const& attrs = attributes() ) : | |
582 | impl_( 0) | |
583 | { | |
584 | // create a stack-context | |
585 | stack_context stack_ctx; | |
586 | stack_allocator stack_alloc; | |
587 | // allocate the coroutine-stack | |
588 | stack_alloc.allocate( stack_ctx, attrs.size); | |
589 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
590 | // typedef of internal coroutine-type | |
591 | typedef detail::pull_coroutine_object< | |
592 | push_coroutine< R >, R, Fn, stack_allocator | |
593 | > object_t; | |
594 | // reserve space on top of coroutine-stack for internal coroutine-type | |
595 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
596 | BOOST_ASSERT( 0 != size); | |
597 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
598 | BOOST_ASSERT( 0 != sp); | |
599 | // placement new for internal coroutine | |
600 | impl_ = new ( sp) object_t( | |
601 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
602 | BOOST_ASSERT( impl_); | |
603 | impl_->pull(); | |
604 | } | |
605 | ||
606 | template< typename Fn, typename StackAllocator > | |
607 | explicit pull_coroutine( Fn fn, | |
608 | attributes const& attrs, | |
609 | StackAllocator stack_alloc) : | |
610 | impl_( 0) | |
611 | { | |
612 | // create a stack-context | |
613 | stack_context stack_ctx; | |
614 | // allocate the coroutine-stack | |
615 | stack_alloc.allocate( stack_ctx, attrs.size); | |
616 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
617 | // typedef of internal coroutine-type | |
618 | typedef detail::pull_coroutine_object< | |
619 | push_coroutine< R >, R, Fn, StackAllocator | |
620 | > object_t; | |
621 | // reserve space on top of coroutine-stack for internal coroutine-type | |
622 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
623 | BOOST_ASSERT( 0 != size); | |
624 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
625 | BOOST_ASSERT( 0 != sp); | |
626 | // placement new for internal coroutine | |
627 | impl_ = new ( sp) object_t( | |
628 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
629 | BOOST_ASSERT( impl_); | |
630 | impl_->pull(); | |
631 | } | |
632 | ||
633 | template< typename Fn > | |
634 | explicit pull_coroutine( BOOST_RV_REF( Fn) fn, | |
635 | attributes const& attrs = attributes() ) : | |
636 | impl_( 0) | |
637 | { | |
638 | // create a stack-context | |
639 | stack_context stack_ctx; | |
640 | stack_allocator stack_alloc; | |
641 | // allocate the coroutine-stack | |
642 | stack_alloc.allocate( stack_ctx, attrs.size); | |
643 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
644 | // typedef of internal coroutine-type | |
645 | typedef detail::pull_coroutine_object< | |
646 | push_coroutine< R >, R, Fn, stack_allocator | |
647 | > object_t; | |
648 | // reserve space on top of coroutine-stack for internal coroutine-type | |
649 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
650 | BOOST_ASSERT( 0 != size); | |
651 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
652 | BOOST_ASSERT( 0 != sp); | |
653 | // placement new for internal coroutine | |
654 | impl_ = new ( sp) object_t( | |
655 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
656 | BOOST_ASSERT( impl_); | |
657 | impl_->pull(); | |
658 | } | |
659 | ||
660 | template< typename Fn, typename StackAllocator > | |
661 | explicit pull_coroutine( BOOST_RV_REF( Fn) fn, | |
662 | attributes const& attrs, | |
663 | StackAllocator stack_alloc) : | |
664 | impl_( 0) | |
665 | { | |
666 | // create a stack-context | |
667 | stack_context stack_ctx; | |
668 | // allocate the coroutine-stack | |
669 | stack_alloc.allocate( stack_ctx, attrs.size); | |
670 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
671 | // typedef of internal coroutine-type | |
672 | typedef detail::pull_coroutine_object< | |
673 | push_coroutine< R >, R, Fn, StackAllocator | |
674 | > object_t; | |
675 | // reserve space on top of coroutine-stack for internal coroutine-type | |
676 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
677 | BOOST_ASSERT( 0 != size); | |
678 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
679 | BOOST_ASSERT( 0 != sp); | |
680 | // placement new for internal coroutine | |
681 | impl_ = new ( sp) object_t( | |
682 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
683 | BOOST_ASSERT( impl_); | |
684 | impl_->pull(); | |
685 | } | |
686 | #endif | |
687 | ||
688 | ~pull_coroutine() | |
689 | { | |
690 | if ( 0 != impl_) | |
691 | { | |
692 | impl_->destroy(); | |
693 | impl_ = 0; | |
694 | } | |
695 | } | |
696 | ||
697 | pull_coroutine( BOOST_RV_REF( pull_coroutine) other) BOOST_NOEXCEPT : | |
698 | impl_( 0) | |
699 | { swap( other); } | |
700 | ||
701 | pull_coroutine & operator=( BOOST_RV_REF( pull_coroutine) other) BOOST_NOEXCEPT | |
702 | { | |
703 | pull_coroutine tmp( boost::move( other) ); | |
704 | swap( tmp); | |
705 | return * this; | |
706 | } | |
707 | ||
708 | BOOST_EXPLICIT_OPERATOR_BOOL(); | |
709 | ||
710 | bool operator!() const BOOST_NOEXCEPT | |
711 | { return 0 == impl_ || impl_->is_complete(); } | |
712 | ||
713 | void swap( pull_coroutine & other) BOOST_NOEXCEPT | |
714 | { std::swap( impl_, other.impl_); } | |
715 | ||
716 | pull_coroutine & operator()() | |
717 | { | |
718 | BOOST_ASSERT( * this); | |
719 | ||
720 | impl_->pull(); | |
721 | return * this; | |
722 | } | |
723 | ||
724 | R get() const | |
725 | { | |
726 | BOOST_ASSERT( 0 != impl_); | |
727 | ||
728 | return impl_->get(); | |
729 | } | |
730 | ||
11fdf7f2 | 731 | class iterator |
7c673cae FG |
732 | { |
733 | private: | |
734 | pull_coroutine< R > * c_; | |
735 | R * val_; | |
736 | ||
737 | void fetch_() | |
738 | { | |
739 | BOOST_ASSERT( c_); | |
740 | ||
741 | if ( ! ( * c_) ) | |
742 | { | |
743 | c_ = 0; | |
744 | val_ = 0; | |
745 | return; | |
746 | } | |
747 | val_ = c_->impl_->get_pointer(); | |
748 | } | |
749 | ||
750 | void increment_() | |
751 | { | |
752 | BOOST_ASSERT( c_); | |
753 | BOOST_ASSERT( * c_); | |
754 | ||
755 | ( * c_)(); | |
756 | fetch_(); | |
757 | } | |
758 | ||
759 | public: | |
11fdf7f2 TL |
760 | typedef std::input_iterator_tag iterator_category; |
761 | typedef typename remove_reference< R >::type value_type; | |
762 | typedef std::ptrdiff_t difference_type; | |
763 | typedef value_type * pointer; | |
764 | typedef value_type & reference; | |
765 | ||
766 | typedef pointer pointer_t; | |
767 | typedef reference reference_t; | |
7c673cae FG |
768 | |
769 | iterator() : | |
770 | c_( 0), val_( 0) | |
771 | {} | |
772 | ||
773 | explicit iterator( pull_coroutine< R > * c) : | |
774 | c_( c), val_( 0) | |
775 | { fetch_(); } | |
776 | ||
777 | iterator( iterator const& other) : | |
778 | c_( other.c_), val_( other.val_) | |
779 | {} | |
780 | ||
781 | iterator & operator=( iterator const& other) | |
782 | { | |
783 | if ( this == & other) return * this; | |
784 | c_ = other.c_; | |
785 | val_ = other.val_; | |
786 | return * this; | |
787 | } | |
788 | ||
789 | bool operator==( iterator const& other) const | |
790 | { return other.c_ == c_ && other.val_ == val_; } | |
791 | ||
792 | bool operator!=( iterator const& other) const | |
793 | { return other.c_ != c_ || other.val_ != val_; } | |
794 | ||
795 | iterator & operator++() | |
796 | { | |
797 | increment_(); | |
798 | return * this; | |
799 | } | |
800 | ||
801 | iterator operator++( int); | |
802 | ||
803 | reference_t operator*() const | |
804 | { | |
805 | if ( ! val_) | |
806 | boost::throw_exception( | |
807 | invalid_result() ); | |
808 | return * val_; | |
809 | } | |
810 | ||
811 | pointer_t operator->() const | |
812 | { | |
813 | if ( ! val_) | |
814 | boost::throw_exception( | |
815 | invalid_result() ); | |
816 | return val_; | |
817 | } | |
818 | }; | |
819 | ||
11fdf7f2 | 820 | class const_iterator |
7c673cae FG |
821 | { |
822 | private: | |
823 | pull_coroutine< R > * c_; | |
824 | R * val_; | |
825 | ||
826 | void fetch_() | |
827 | { | |
828 | BOOST_ASSERT( c_); | |
829 | ||
830 | if ( ! ( * c_) ) | |
831 | { | |
832 | c_ = 0; | |
833 | val_ = 0; | |
834 | return; | |
835 | } | |
836 | val_ = c_->impl_->get_pointer(); | |
837 | } | |
838 | ||
839 | void increment_() | |
840 | { | |
841 | BOOST_ASSERT( c_); | |
842 | BOOST_ASSERT( * c_); | |
843 | ||
844 | ( * c_)(); | |
845 | fetch_(); | |
846 | } | |
847 | ||
848 | public: | |
11fdf7f2 TL |
849 | typedef std::input_iterator_tag iterator_category; |
850 | typedef const typename remove_reference< R >::type value_type; | |
851 | typedef std::ptrdiff_t difference_type; | |
852 | typedef value_type * pointer; | |
853 | typedef value_type & reference; | |
854 | ||
855 | typedef pointer pointer_t; | |
856 | typedef reference reference_t; | |
7c673cae FG |
857 | |
858 | const_iterator() : | |
859 | c_( 0), val_( 0) | |
860 | {} | |
861 | ||
862 | explicit const_iterator( pull_coroutine< R > const* c) : | |
863 | c_( const_cast< pull_coroutine< R > * >( c) ), | |
864 | val_( 0) | |
865 | { fetch_(); } | |
866 | ||
867 | const_iterator( const_iterator const& other) : | |
868 | c_( other.c_), val_( other.val_) | |
869 | {} | |
870 | ||
871 | const_iterator & operator=( const_iterator const& other) | |
872 | { | |
873 | if ( this == & other) return * this; | |
874 | c_ = other.c_; | |
875 | val_ = other.val_; | |
876 | return * this; | |
877 | } | |
878 | ||
879 | bool operator==( const_iterator const& other) const | |
880 | { return other.c_ == c_ && other.val_ == val_; } | |
881 | ||
882 | bool operator!=( const_iterator const& other) const | |
883 | { return other.c_ != c_ || other.val_ != val_; } | |
884 | ||
885 | const_iterator & operator++() | |
886 | { | |
887 | increment_(); | |
888 | return * this; | |
889 | } | |
890 | ||
891 | const_iterator operator++( int); | |
892 | ||
893 | reference_t operator*() const | |
894 | { | |
895 | if ( ! val_) | |
896 | boost::throw_exception( | |
897 | invalid_result() ); | |
898 | return * val_; | |
899 | } | |
900 | ||
901 | pointer_t operator->() const | |
902 | { | |
903 | if ( ! val_) | |
904 | boost::throw_exception( | |
905 | invalid_result() ); | |
906 | return val_; | |
907 | } | |
908 | }; | |
909 | ||
910 | friend class iterator; | |
911 | friend class const_iterator; | |
912 | }; | |
913 | ||
914 | template< typename R > | |
915 | class pull_coroutine< R & > | |
916 | { | |
917 | private: | |
918 | template< typename V, typename X, typename Y, typename Z > | |
919 | friend class detail::push_coroutine_object; | |
920 | ||
921 | typedef detail::pull_coroutine_impl< R & > impl_type; | |
922 | typedef detail::pull_coroutine_synthesized< R & > synth_type; | |
923 | typedef detail::parameters< R & > param_type; | |
924 | ||
925 | struct dummy {}; | |
926 | ||
927 | impl_type * impl_; | |
928 | ||
929 | BOOST_MOVABLE_BUT_NOT_COPYABLE( pull_coroutine) | |
930 | ||
931 | explicit pull_coroutine( detail::synthesized_t::flag_t, impl_type & impl) : | |
932 | impl_( & impl) | |
933 | { BOOST_ASSERT( impl_); } | |
934 | ||
935 | public: | |
936 | pull_coroutine() BOOST_NOEXCEPT : | |
937 | impl_( 0) | |
938 | {} | |
939 | ||
940 | #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES | |
941 | # ifdef BOOST_MSVC | |
942 | typedef void ( * coroutine_fn)( push_coroutine< R & > &); | |
943 | ||
944 | explicit pull_coroutine( coroutine_fn fn, | |
945 | attributes const& attrs = attributes() ) : | |
946 | impl_( 0) | |
947 | { | |
948 | // create a stack-context | |
949 | stack_context stack_ctx; | |
950 | stack_allocator stack_alloc; | |
951 | // allocate the coroutine-stack | |
952 | stack_alloc.allocate( stack_ctx, attrs.size); | |
953 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
954 | // typedef of internal coroutine-type | |
955 | typedef detail::pull_coroutine_object< | |
956 | push_coroutine< R & >, R &, coroutine_fn, stack_allocator | |
957 | > object_t; | |
958 | // reserve space on top of coroutine-stack for internal coroutine-type | |
959 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
960 | BOOST_ASSERT( 0 != size); | |
961 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
962 | BOOST_ASSERT( 0 != sp); | |
963 | // placement new for internal coroutine | |
964 | impl_ = new ( sp) object_t( | |
965 | boost::forward< coroutine_fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
966 | BOOST_ASSERT( impl_); | |
967 | impl_->pull(); | |
968 | } | |
969 | ||
970 | template< typename StackAllocator > | |
971 | explicit pull_coroutine( coroutine_fn fn, | |
972 | attributes const& attrs, | |
973 | StackAllocator stack_alloc) : | |
974 | impl_( 0) | |
975 | { | |
976 | // create a stack-context | |
977 | stack_context stack_ctx; | |
978 | // allocate the coroutine-stack | |
979 | stack_alloc.allocate( stack_ctx, attrs.size); | |
980 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
981 | // typedef of internal coroutine-type | |
982 | typedef detail::pull_coroutine_object< | |
983 | push_coroutine< R & >, R &, coroutine_fn, StackAllocator | |
984 | > object_t; | |
985 | // reserve space on top of coroutine-stack for internal coroutine-type | |
986 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
987 | BOOST_ASSERT( 0 != size); | |
988 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
989 | BOOST_ASSERT( 0 != sp); | |
990 | // placement new for internal coroutine | |
991 | impl_ = new ( sp) object_t( | |
992 | boost::forward< coroutine_fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
993 | BOOST_ASSERT( impl_); | |
994 | impl_->pull(); | |
995 | } | |
996 | # endif | |
997 | template< typename Fn > | |
998 | explicit pull_coroutine( BOOST_RV_REF( Fn) fn, | |
999 | attributes const& attrs = attributes() ) : | |
1000 | impl_( 0) | |
1001 | { | |
1002 | // create a stack-context | |
1003 | stack_context stack_ctx; | |
1004 | stack_allocator stack_alloc; | |
1005 | // allocate the coroutine-stack | |
1006 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1007 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1008 | // typedef of internal coroutine-type | |
1009 | typedef detail::pull_coroutine_object< | |
1010 | push_coroutine< R & >, R &, Fn, stack_allocator | |
1011 | > object_t; | |
1012 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1013 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1014 | BOOST_ASSERT( 0 != size); | |
1015 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1016 | BOOST_ASSERT( 0 != sp); | |
1017 | // placement new for internal coroutine | |
1018 | impl_ = new ( sp) object_t( | |
1019 | boost::forward< Fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1020 | BOOST_ASSERT( impl_); | |
1021 | impl_->pull(); | |
1022 | } | |
1023 | ||
1024 | template< typename Fn, typename StackAllocator > | |
1025 | explicit pull_coroutine( BOOST_RV_REF( Fn) fn, | |
1026 | attributes const& attrs, | |
1027 | StackAllocator stack_alloc) : | |
1028 | impl_( 0) | |
1029 | { | |
1030 | // create a stack-context | |
1031 | stack_context stack_ctx; | |
1032 | // allocate the coroutine-stack | |
1033 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1034 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1035 | // typedef of internal coroutine-type | |
1036 | typedef detail::pull_coroutine_object< | |
1037 | push_coroutine< R & >, R &, Fn, StackAllocator | |
1038 | > object_t; | |
1039 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1040 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1041 | BOOST_ASSERT( 0 != size); | |
1042 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1043 | BOOST_ASSERT( 0 != sp); | |
1044 | // placement new for internal coroutine | |
1045 | impl_ = new ( sp) object_t( | |
1046 | boost::forward< Fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1047 | BOOST_ASSERT( impl_); | |
1048 | impl_->pull(); | |
1049 | } | |
1050 | #else | |
1051 | template< typename Fn > | |
1052 | explicit pull_coroutine( Fn fn, | |
1053 | attributes const& attrs = attributes() ) : | |
1054 | impl_( 0) | |
1055 | { | |
1056 | // create a stack-context | |
1057 | stack_context stack_ctx; | |
1058 | stack_allocator stack_alloc; | |
1059 | // allocate the coroutine-stack | |
1060 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1061 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1062 | // typedef of internal coroutine-type | |
1063 | typedef detail::pull_coroutine_object< | |
1064 | push_coroutine< R & >, R &, Fn, stack_allocator | |
1065 | > object_t; | |
1066 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1067 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1068 | BOOST_ASSERT( 0 != size); | |
1069 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1070 | BOOST_ASSERT( 0 != sp); | |
1071 | // placement new for internal coroutine | |
1072 | impl_ = new ( sp) object_t( | |
1073 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1074 | BOOST_ASSERT( impl_); | |
1075 | impl_->pull(); | |
1076 | } | |
1077 | ||
1078 | template< typename Fn, typename StackAllocator > | |
1079 | explicit pull_coroutine( Fn fn, | |
1080 | attributes const& attrs, | |
1081 | StackAllocator stack_alloc) : | |
1082 | impl_( 0) | |
1083 | { | |
1084 | // create a stack-context | |
1085 | stack_context stack_ctx; | |
1086 | // allocate the coroutine-stack | |
1087 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1088 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1089 | // typedef of internal coroutine-type | |
1090 | typedef detail::pull_coroutine_object< | |
1091 | push_coroutine< R & >, R &, Fn, StackAllocator | |
1092 | > object_t; | |
1093 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1094 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1095 | BOOST_ASSERT( 0 != size); | |
1096 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1097 | BOOST_ASSERT( 0 != sp); | |
1098 | // placement new for internal coroutine | |
1099 | impl_ = new ( sp) object_t( | |
1100 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1101 | BOOST_ASSERT( impl_); | |
1102 | impl_->pull(); | |
1103 | } | |
1104 | ||
1105 | template< typename Fn > | |
1106 | explicit pull_coroutine( BOOST_RV_REF( Fn) fn, | |
1107 | attributes const& attrs = attributes() ) : | |
1108 | impl_( 0) | |
1109 | { | |
1110 | // create a stack-context | |
1111 | stack_context stack_ctx; | |
1112 | stack_allocator stack_alloc; | |
1113 | // allocate the coroutine-stack | |
1114 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1115 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1116 | // typedef of internal coroutine-type | |
1117 | typedef detail::pull_coroutine_object< | |
1118 | push_coroutine< R & >, R &, Fn, stack_allocator | |
1119 | > object_t; | |
1120 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1121 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1122 | BOOST_ASSERT( 0 != size); | |
1123 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1124 | BOOST_ASSERT( 0 != sp); | |
1125 | // placement new for internal coroutine | |
1126 | impl_ = new ( sp) object_t( | |
1127 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1128 | BOOST_ASSERT( impl_); | |
1129 | impl_->pull(); | |
1130 | } | |
1131 | ||
1132 | template< typename Fn, typename StackAllocator > | |
1133 | explicit pull_coroutine( BOOST_RV_REF( Fn) fn, | |
1134 | attributes const& attrs, | |
1135 | StackAllocator stack_alloc) : | |
1136 | impl_( 0) | |
1137 | { | |
1138 | // create a stack-context | |
1139 | stack_context stack_ctx; | |
1140 | // allocate the coroutine-stack | |
1141 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1142 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1143 | // typedef of internal coroutine-type | |
1144 | typedef detail::pull_coroutine_object< | |
1145 | push_coroutine< R & >, R &, Fn, StackAllocator | |
1146 | > object_t; | |
1147 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1148 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1149 | BOOST_ASSERT( 0 != size); | |
1150 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1151 | BOOST_ASSERT( 0 != sp); | |
1152 | // placement new for internal coroutine | |
1153 | impl_ = new ( sp) object_t( | |
1154 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1155 | BOOST_ASSERT( impl_); | |
1156 | impl_->pull(); | |
1157 | } | |
1158 | #endif | |
1159 | ||
1160 | ~pull_coroutine() | |
1161 | { | |
1162 | if ( 0 != impl_) | |
1163 | { | |
1164 | impl_->destroy(); | |
1165 | impl_ = 0; | |
1166 | } | |
1167 | } | |
1168 | ||
1169 | pull_coroutine( BOOST_RV_REF( pull_coroutine) other) BOOST_NOEXCEPT : | |
1170 | impl_( 0) | |
1171 | { swap( other); } | |
1172 | ||
1173 | pull_coroutine & operator=( BOOST_RV_REF( pull_coroutine) other) BOOST_NOEXCEPT | |
1174 | { | |
1175 | pull_coroutine tmp( boost::move( other) ); | |
1176 | swap( tmp); | |
1177 | return * this; | |
1178 | } | |
1179 | ||
1180 | BOOST_EXPLICIT_OPERATOR_BOOL(); | |
1181 | ||
1182 | bool operator!() const BOOST_NOEXCEPT | |
1183 | { return 0 == impl_ || impl_->is_complete(); } | |
1184 | ||
1185 | void swap( pull_coroutine & other) BOOST_NOEXCEPT | |
1186 | { std::swap( impl_, other.impl_); } | |
1187 | ||
1188 | pull_coroutine & operator()() | |
1189 | { | |
1190 | BOOST_ASSERT( * this); | |
1191 | ||
1192 | impl_->pull(); | |
1193 | return * this; | |
1194 | } | |
1195 | ||
1196 | R & get() const | |
1197 | { return impl_->get(); } | |
1198 | ||
11fdf7f2 | 1199 | class iterator |
7c673cae FG |
1200 | { |
1201 | private: | |
1202 | pull_coroutine< R & > * c_; | |
1203 | R * val_; | |
1204 | ||
1205 | void fetch_() | |
1206 | { | |
1207 | BOOST_ASSERT( c_); | |
1208 | ||
1209 | if ( ! ( * c_) ) | |
1210 | { | |
1211 | c_ = 0; | |
1212 | val_ = 0; | |
1213 | return; | |
1214 | } | |
1215 | val_ = c_->impl_->get_pointer(); | |
1216 | } | |
1217 | ||
1218 | void increment_() | |
1219 | { | |
1220 | BOOST_ASSERT( c_); | |
1221 | BOOST_ASSERT( * c_); | |
1222 | ||
1223 | ( * c_)(); | |
1224 | fetch_(); | |
1225 | } | |
1226 | ||
1227 | public: | |
11fdf7f2 TL |
1228 | typedef std::input_iterator_tag iterator_category; |
1229 | typedef typename remove_reference< R >::type value_type; | |
1230 | typedef std::ptrdiff_t difference_type; | |
1231 | typedef value_type * pointer; | |
1232 | typedef value_type & reference; | |
1233 | ||
1234 | typedef pointer pointer_t; | |
1235 | typedef reference reference_t; | |
7c673cae FG |
1236 | |
1237 | iterator() : | |
1238 | c_( 0), val_( 0) | |
1239 | {} | |
1240 | ||
1241 | explicit iterator( pull_coroutine< R & > * c) : | |
1242 | c_( c), val_( 0) | |
1243 | { fetch_(); } | |
1244 | ||
1245 | iterator( iterator const& other) : | |
1246 | c_( other.c_), val_( other.val_) | |
1247 | {} | |
1248 | ||
1249 | iterator & operator=( iterator const& other) | |
1250 | { | |
1251 | if ( this == & other) return * this; | |
1252 | c_ = other.c_; | |
1253 | val_ = other.val_; | |
1254 | return * this; | |
1255 | } | |
1256 | ||
1257 | bool operator==( iterator const& other) const | |
1258 | { return other.c_ == c_ && other.val_ == val_; } | |
1259 | ||
1260 | bool operator!=( iterator const& other) const | |
1261 | { return other.c_ != c_ || other.val_ != val_; } | |
1262 | ||
1263 | iterator & operator++() | |
1264 | { | |
1265 | increment_(); | |
1266 | return * this; | |
1267 | } | |
1268 | ||
1269 | iterator operator++( int); | |
1270 | ||
1271 | reference_t operator*() const | |
1272 | { | |
1273 | if ( ! val_) | |
1274 | boost::throw_exception( | |
1275 | invalid_result() ); | |
1276 | return * val_; | |
1277 | } | |
1278 | ||
1279 | pointer_t operator->() const | |
1280 | { | |
1281 | if ( ! val_) | |
1282 | boost::throw_exception( | |
1283 | invalid_result() ); | |
1284 | return val_; | |
1285 | } | |
1286 | }; | |
1287 | ||
11fdf7f2 | 1288 | class const_iterator |
7c673cae FG |
1289 | { |
1290 | private: | |
1291 | pull_coroutine< R & > * c_; | |
1292 | R * val_; | |
1293 | ||
1294 | void fetch_() | |
1295 | { | |
1296 | BOOST_ASSERT( c_); | |
1297 | ||
1298 | if ( ! ( * c_) ) | |
1299 | { | |
1300 | c_ = 0; | |
1301 | val_ = 0; | |
1302 | return; | |
1303 | } | |
1304 | val_ = c_->impl_->get_pointer(); | |
1305 | } | |
1306 | ||
1307 | void increment_() | |
1308 | { | |
1309 | BOOST_ASSERT( c_); | |
1310 | BOOST_ASSERT( * c_); | |
1311 | ||
1312 | ( * c_)(); | |
1313 | fetch_(); | |
1314 | } | |
1315 | ||
1316 | public: | |
11fdf7f2 TL |
1317 | typedef std::input_iterator_tag iterator_category; |
1318 | typedef const typename remove_reference< R >::type value_type; | |
1319 | typedef std::ptrdiff_t difference_type; | |
1320 | typedef value_type * pointer; | |
1321 | typedef value_type & reference; | |
1322 | ||
1323 | typedef pointer pointer_t; | |
1324 | typedef reference reference_t; | |
7c673cae FG |
1325 | |
1326 | const_iterator() : | |
1327 | c_( 0), val_( 0) | |
1328 | {} | |
1329 | ||
1330 | explicit const_iterator( pull_coroutine< R & > const* c) : | |
1331 | c_( const_cast< pull_coroutine< R & > * >( c) ), | |
1332 | val_( 0) | |
1333 | { fetch_(); } | |
1334 | ||
1335 | const_iterator( const_iterator const& other) : | |
1336 | c_( other.c_), val_( other.val_) | |
1337 | {} | |
1338 | ||
1339 | const_iterator & operator=( const_iterator const& other) | |
1340 | { | |
1341 | if ( this == & other) return * this; | |
1342 | c_ = other.c_; | |
1343 | val_ = other.val_; | |
1344 | return * this; | |
1345 | } | |
1346 | ||
1347 | bool operator==( const_iterator const& other) const | |
1348 | { return other.c_ == c_ && other.val_ == val_; } | |
1349 | ||
1350 | bool operator!=( const_iterator const& other) const | |
1351 | { return other.c_ != c_ || other.val_ != val_; } | |
1352 | ||
1353 | const_iterator & operator++() | |
1354 | { | |
1355 | increment_(); | |
1356 | return * this; | |
1357 | } | |
1358 | ||
1359 | const_iterator operator++( int); | |
1360 | ||
1361 | reference_t operator*() const | |
1362 | { | |
1363 | if ( ! val_) | |
1364 | boost::throw_exception( | |
1365 | invalid_result() ); | |
1366 | return * val_; | |
1367 | } | |
1368 | ||
1369 | pointer_t operator->() const | |
1370 | { | |
1371 | if ( ! val_) | |
1372 | boost::throw_exception( | |
1373 | invalid_result() ); | |
1374 | return val_; | |
1375 | } | |
1376 | }; | |
1377 | ||
1378 | friend class iterator; | |
1379 | friend class const_iterator; | |
1380 | }; | |
1381 | ||
1382 | template<> | |
1383 | class pull_coroutine< void > | |
1384 | { | |
1385 | private: | |
1386 | template< typename V, typename X, typename Y, typename Z > | |
1387 | friend class detail::push_coroutine_object; | |
1388 | ||
1389 | typedef detail::pull_coroutine_impl< void > impl_type; | |
1390 | typedef detail::pull_coroutine_synthesized< void > synth_type; | |
1391 | typedef detail::parameters< void > param_type; | |
1392 | ||
1393 | struct dummy {}; | |
1394 | ||
1395 | impl_type * impl_; | |
1396 | ||
1397 | BOOST_MOVABLE_BUT_NOT_COPYABLE( pull_coroutine) | |
1398 | ||
1399 | explicit pull_coroutine( detail::synthesized_t::flag_t, impl_type & impl) : | |
1400 | impl_( & impl) | |
1401 | { BOOST_ASSERT( impl_); } | |
1402 | ||
1403 | public: | |
1404 | pull_coroutine() BOOST_NOEXCEPT : | |
1405 | impl_( 0) | |
1406 | {} | |
1407 | ||
1408 | #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES | |
1409 | # ifdef BOOST_MSVC | |
1410 | typedef void ( * coroutine_fn)( push_coroutine< void > &); | |
1411 | ||
1412 | explicit pull_coroutine( coroutine_fn fn, | |
1413 | attributes const& attrs = attributes() ) : | |
1414 | impl_( 0) | |
1415 | { | |
1416 | // create a stack-context | |
1417 | stack_context stack_ctx; | |
1418 | stack_allocator stack_alloc; | |
1419 | // allocate the coroutine-stack | |
1420 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1421 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1422 | // typedef of internal coroutine-type | |
1423 | typedef detail::pull_coroutine_object< | |
1424 | push_coroutine< void >, void, coroutine_fn, stack_allocator | |
1425 | > object_t; | |
1426 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1427 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1428 | BOOST_ASSERT( 0 != size); | |
1429 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1430 | BOOST_ASSERT( 0 != sp); | |
1431 | // placement new for internal coroutine | |
1432 | impl_ = new ( sp) object_t( | |
1433 | boost::forward< coroutine_fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1434 | BOOST_ASSERT( impl_); | |
1435 | impl_->pull(); | |
1436 | } | |
1437 | ||
1438 | template< typename StackAllocator > | |
1439 | explicit pull_coroutine( coroutine_fn fn, | |
1440 | attributes const& attrs, | |
1441 | StackAllocator stack_alloc) : | |
1442 | impl_( 0) | |
1443 | { | |
1444 | // create a stack-context | |
1445 | stack_context stack_ctx; | |
1446 | // allocate the coroutine-stack | |
1447 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1448 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1449 | // typedef of internal coroutine-type | |
1450 | typedef detail::pull_coroutine_object< | |
1451 | push_coroutine< void >, void, coroutine_fn, StackAllocator | |
1452 | > object_t; | |
1453 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1454 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1455 | BOOST_ASSERT( 0 != size); | |
1456 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1457 | BOOST_ASSERT( 0 != sp); | |
1458 | // placement new for internal coroutine | |
1459 | impl_ = new ( sp) object_t( | |
1460 | boost::forward< coroutine_fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1461 | BOOST_ASSERT( impl_); | |
1462 | impl_->pull(); | |
1463 | } | |
1464 | # endif | |
1465 | template< typename Fn > | |
1466 | explicit pull_coroutine( BOOST_RV_REF( Fn) fn, | |
1467 | attributes const& attrs = attributes() ) : | |
1468 | impl_( 0) | |
1469 | { | |
1470 | // create a stack-context | |
1471 | stack_context stack_ctx; | |
1472 | stack_allocator stack_alloc; | |
1473 | // allocate the coroutine-stack | |
1474 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1475 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1476 | // typedef of internal coroutine-type | |
1477 | typedef detail::pull_coroutine_object< | |
1478 | push_coroutine< void >, void, Fn, stack_allocator | |
1479 | > object_t; | |
1480 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1481 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1482 | BOOST_ASSERT( 0 != size); | |
1483 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1484 | BOOST_ASSERT( 0 != sp); | |
1485 | // placement new for internal coroutine | |
1486 | impl_ = new ( sp) object_t( | |
1487 | boost::forward< Fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1488 | BOOST_ASSERT( impl_); | |
1489 | impl_->pull(); | |
1490 | } | |
1491 | ||
1492 | template< typename Fn, typename StackAllocator > | |
1493 | explicit pull_coroutine( BOOST_RV_REF( Fn) fn, | |
1494 | attributes const& attrs, | |
1495 | StackAllocator stack_alloc) : | |
1496 | impl_( 0) | |
1497 | { | |
1498 | // create a stack-context | |
1499 | stack_context stack_ctx; | |
1500 | // allocate the coroutine-stack | |
1501 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1502 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1503 | // typedef of internal coroutine-type | |
1504 | typedef detail::pull_coroutine_object< | |
1505 | push_coroutine< void >, void, Fn, StackAllocator | |
1506 | > object_t; | |
1507 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1508 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1509 | BOOST_ASSERT( 0 != size); | |
1510 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1511 | BOOST_ASSERT( 0 != sp); | |
1512 | // placement new for internal coroutine | |
1513 | impl_ = new ( sp) object_t( | |
1514 | boost::forward< Fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1515 | BOOST_ASSERT( impl_); | |
1516 | impl_->pull(); | |
1517 | } | |
1518 | #else | |
1519 | template< typename Fn > | |
1520 | explicit pull_coroutine( Fn fn, | |
1521 | attributes const& attrs = attributes() ) : | |
1522 | impl_( 0) | |
1523 | { | |
1524 | // create a stack-context | |
1525 | stack_context stack_ctx; | |
1526 | stack_allocator stack_alloc; | |
1527 | // allocate the coroutine-stack | |
1528 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1529 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1530 | // typedef of internal coroutine-type | |
1531 | typedef detail::pull_coroutine_object< | |
1532 | push_coroutine< void >, void, Fn, stack_allocator | |
1533 | > object_t; | |
1534 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1535 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1536 | BOOST_ASSERT( 0 != size); | |
1537 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1538 | BOOST_ASSERT( 0 != sp); | |
1539 | // placement new for internal coroutine | |
1540 | impl_ = new ( sp) object_t( | |
1541 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1542 | BOOST_ASSERT( impl_); | |
1543 | impl_->pull(); | |
1544 | } | |
1545 | ||
1546 | template< typename Fn, typename StackAllocator > | |
1547 | explicit pull_coroutine( Fn fn, | |
1548 | attributes const& attrs, | |
1549 | StackAllocator stack_alloc) : | |
1550 | impl_( 0) | |
1551 | { | |
1552 | // create a stack-context | |
1553 | stack_context stack_ctx; | |
1554 | // allocate the coroutine-stack | |
1555 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1556 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1557 | // typedef of internal coroutine-type | |
1558 | typedef detail::pull_coroutine_object< | |
1559 | push_coroutine< void >, void, Fn, StackAllocator | |
1560 | > object_t; | |
1561 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1562 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1563 | BOOST_ASSERT( 0 != size); | |
1564 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1565 | BOOST_ASSERT( 0 != sp); | |
1566 | // placement new for internal coroutine | |
1567 | impl_ = new ( sp) object_t( | |
1568 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1569 | BOOST_ASSERT( impl_); | |
1570 | impl_->pull(); | |
1571 | } | |
1572 | ||
1573 | template< typename Fn > | |
1574 | explicit pull_coroutine( BOOST_RV_REF( Fn) fn, | |
1575 | attributes const& attrs = attributes() ) : | |
1576 | impl_( 0) | |
1577 | { | |
1578 | // create a stack-context | |
1579 | stack_context stack_ctx; | |
1580 | stack_allocator stack_alloc; | |
1581 | // allocate the coroutine-stack | |
1582 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1583 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1584 | // typedef of internal coroutine-type | |
1585 | typedef detail::pull_coroutine_object< | |
1586 | push_coroutine< void >, void, Fn, stack_allocator | |
1587 | > object_t; | |
1588 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1589 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1590 | BOOST_ASSERT( 0 != size); | |
1591 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1592 | BOOST_ASSERT( 0 != sp); | |
1593 | // placement new for internal coroutine | |
1594 | impl_ = new ( sp) object_t( | |
1595 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1596 | BOOST_ASSERT( impl_); | |
1597 | impl_->pull(); | |
1598 | } | |
1599 | ||
1600 | template< typename Fn, typename StackAllocator > | |
1601 | explicit pull_coroutine( BOOST_RV_REF( Fn) fn, | |
1602 | attributes const& attrs, | |
1603 | StackAllocator stack_alloc) : | |
1604 | impl_( 0) | |
1605 | { | |
1606 | // create a stack-context | |
1607 | stack_context stack_ctx; | |
1608 | // allocate the coroutine-stack | |
1609 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1610 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1611 | // typedef of internal coroutine-type | |
1612 | typedef detail::pull_coroutine_object< | |
1613 | push_coroutine< void >, void, Fn, StackAllocator | |
1614 | > object_t; | |
1615 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1616 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1617 | BOOST_ASSERT( 0 != size); | |
1618 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1619 | BOOST_ASSERT( 0 != sp); | |
1620 | // placement new for internal coroutine | |
1621 | impl_ = new ( sp) object_t( | |
1622 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1623 | BOOST_ASSERT( impl_); | |
1624 | impl_->pull(); | |
1625 | } | |
1626 | #endif | |
1627 | ||
1628 | ~pull_coroutine() | |
1629 | { | |
1630 | if ( 0 != impl_) | |
1631 | { | |
1632 | impl_->destroy(); | |
1633 | impl_ = 0; | |
1634 | } | |
1635 | } | |
1636 | ||
1637 | inline pull_coroutine( BOOST_RV_REF( pull_coroutine) other) BOOST_NOEXCEPT : | |
1638 | impl_( 0) | |
1639 | { swap( other); } | |
1640 | ||
1641 | inline pull_coroutine & operator=( BOOST_RV_REF( pull_coroutine) other) BOOST_NOEXCEPT | |
1642 | { | |
1643 | pull_coroutine tmp( boost::move( other) ); | |
1644 | swap( tmp); | |
1645 | return * this; | |
1646 | } | |
1647 | ||
1648 | BOOST_EXPLICIT_OPERATOR_BOOL(); | |
1649 | ||
1650 | inline bool operator!() const BOOST_NOEXCEPT | |
1651 | { return 0 == impl_ || impl_->is_complete(); } | |
1652 | ||
1653 | inline void swap( pull_coroutine & other) BOOST_NOEXCEPT | |
1654 | { std::swap( impl_, other.impl_); } | |
1655 | ||
1656 | inline pull_coroutine & operator()() | |
1657 | { | |
1658 | BOOST_ASSERT( * this); | |
1659 | ||
1660 | impl_->pull(); | |
1661 | return * this; | |
1662 | } | |
1663 | ||
1664 | struct iterator; | |
1665 | struct const_iterator; | |
1666 | }; | |
1667 | ||
1668 | #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES | |
1669 | # ifdef BOOST_MSVC | |
1670 | template< typename Arg > | |
1671 | push_coroutine< Arg >::push_coroutine( coroutine_fn fn, | |
1672 | attributes const& attrs) : | |
1673 | impl_( 0) | |
1674 | { | |
1675 | // create a stack-context | |
1676 | stack_context stack_ctx; | |
1677 | stack_allocator stack_alloc; | |
1678 | // allocate the coroutine-stack | |
1679 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1680 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1681 | // typedef of internal coroutine-type | |
1682 | typedef detail::push_coroutine_object< | |
1683 | pull_coroutine< Arg >, Arg, coroutine_fn, stack_allocator | |
1684 | > object_t; | |
1685 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1686 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1687 | BOOST_ASSERT( 0 != size); | |
1688 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1689 | BOOST_ASSERT( 0 != sp); | |
1690 | // placement new for internal coroutine | |
1691 | impl_ = new ( sp) object_t( | |
1692 | boost::forward< coroutine_fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1693 | BOOST_ASSERT( impl_); | |
1694 | } | |
1695 | ||
1696 | template< typename Arg > | |
1697 | template< typename StackAllocator > | |
1698 | push_coroutine< Arg >::push_coroutine( coroutine_fn fn, | |
1699 | attributes const& attrs, | |
1700 | StackAllocator stack_alloc) : | |
1701 | impl_( 0) | |
1702 | { | |
1703 | // create a stack-context | |
1704 | stack_context stack_ctx; | |
1705 | // allocate the coroutine-stack | |
1706 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1707 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1708 | // typedef of internal coroutine-type | |
1709 | typedef detail::push_coroutine_object< | |
1710 | pull_coroutine< Arg >, Arg, coroutine_fn, StackAllocator | |
1711 | > object_t; | |
1712 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1713 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1714 | BOOST_ASSERT( 0 != size); | |
1715 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1716 | BOOST_ASSERT( 0 != sp); | |
1717 | // placement new for internal coroutine | |
1718 | impl_ = new ( sp) object_t( | |
1719 | boost::forward< coroutine_fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1720 | BOOST_ASSERT( impl_); | |
1721 | } | |
1722 | ||
1723 | template< typename Arg > | |
1724 | push_coroutine< Arg & >::push_coroutine( coroutine_fn fn, | |
1725 | attributes const& attrs) : | |
1726 | impl_( 0) | |
1727 | { | |
1728 | // create a stack-context | |
1729 | stack_context stack_ctx; | |
1730 | stack_allocator stack_alloc; | |
1731 | // allocate the coroutine-stack | |
1732 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1733 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1734 | // typedef of internal coroutine-type | |
1735 | typedef detail::push_coroutine_object< | |
1736 | pull_coroutine< Arg & >, Arg &, coroutine_fn, stack_allocator | |
1737 | > object_t; | |
1738 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1739 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1740 | BOOST_ASSERT( 0 != size); | |
1741 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1742 | BOOST_ASSERT( 0 != sp); | |
1743 | // placement new for internal coroutine | |
1744 | impl_ = new ( sp) object_t( | |
1745 | boost::forward< coroutine_fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1746 | BOOST_ASSERT( impl_); | |
1747 | } | |
1748 | ||
1749 | template< typename Arg > | |
1750 | template< typename StackAllocator > | |
1751 | push_coroutine< Arg & >::push_coroutine( coroutine_fn fn, | |
1752 | attributes const& attrs, | |
1753 | StackAllocator stack_alloc) : | |
1754 | impl_( 0) | |
1755 | { | |
1756 | // create a stack-context | |
1757 | stack_context stack_ctx; | |
1758 | // allocate the coroutine-stack | |
1759 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1760 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1761 | // typedef of internal coroutine-type | |
1762 | typedef detail::push_coroutine_object< | |
1763 | pull_coroutine< Arg & >, Arg &, coroutine_fn, StackAllocator | |
1764 | > object_t; | |
1765 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1766 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1767 | BOOST_ASSERT( 0 != size); | |
1768 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1769 | BOOST_ASSERT( 0 != sp); | |
1770 | // placement new for internal coroutine | |
1771 | impl_ = new ( sp) object_t( | |
1772 | boost::forward< coroutine_fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1773 | BOOST_ASSERT( impl_); | |
1774 | } | |
1775 | ||
1776 | inline push_coroutine< void >::push_coroutine( coroutine_fn fn, | |
1777 | attributes const& attrs) : | |
1778 | impl_( 0) | |
1779 | { | |
1780 | // create a stack-context | |
1781 | stack_context stack_ctx; | |
1782 | stack_allocator stack_alloc; | |
1783 | // allocate the coroutine-stack | |
1784 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1785 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1786 | // typedef of internal coroutine-type | |
1787 | typedef detail::push_coroutine_object< | |
1788 | pull_coroutine< void >, void, coroutine_fn, stack_allocator | |
1789 | > object_t; | |
1790 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1791 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1792 | BOOST_ASSERT( 0 != size); | |
1793 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1794 | BOOST_ASSERT( 0 != sp); | |
1795 | // placement new for internal coroutine | |
1796 | impl_ = new ( sp) object_t( | |
1797 | boost::forward< coroutine_fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1798 | BOOST_ASSERT( impl_); | |
1799 | } | |
1800 | ||
1801 | template< typename StackAllocator > | |
1802 | push_coroutine< void >::push_coroutine( coroutine_fn fn, | |
1803 | attributes const& attrs, | |
1804 | StackAllocator stack_alloc) : | |
1805 | impl_( 0) | |
1806 | { | |
1807 | // create a stack-context | |
1808 | stack_context stack_ctx; | |
1809 | // allocate the coroutine-stack | |
1810 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1811 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1812 | // typedef of internal coroutine-type | |
1813 | typedef detail::push_coroutine_object< | |
1814 | pull_coroutine< void >, void, coroutine_fn, StackAllocator | |
1815 | > object_t; | |
1816 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1817 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1818 | BOOST_ASSERT( 0 != size); | |
1819 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1820 | BOOST_ASSERT( 0 != sp); | |
1821 | // placement new for internal coroutine | |
1822 | impl_ = new ( sp) object_t( | |
1823 | boost::forward< coroutine_fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1824 | BOOST_ASSERT( impl_); | |
1825 | } | |
1826 | # endif | |
1827 | template< typename Arg > | |
1828 | template< typename Fn > | |
1829 | push_coroutine< Arg >::push_coroutine( BOOST_RV_REF( Fn) fn, | |
1830 | attributes const& attrs) : | |
1831 | impl_( 0) | |
1832 | { | |
1833 | // create a stack-context | |
1834 | stack_context stack_ctx; | |
1835 | stack_allocator stack_alloc; | |
1836 | // allocate the coroutine-stack | |
1837 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1838 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1839 | // typedef of internal coroutine-type | |
1840 | typedef detail::push_coroutine_object< | |
1841 | pull_coroutine< Arg >, Arg, Fn, stack_allocator | |
1842 | > object_t; | |
1843 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1844 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1845 | BOOST_ASSERT( 0 != size); | |
1846 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1847 | BOOST_ASSERT( 0 != sp); | |
1848 | // placement new for internal coroutine | |
1849 | impl_ = new ( sp) object_t( | |
1850 | boost::forward< Fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1851 | BOOST_ASSERT( impl_); | |
1852 | } | |
1853 | ||
1854 | template< typename Arg > | |
1855 | template< typename Fn, typename StackAllocator > | |
1856 | push_coroutine< Arg >::push_coroutine( BOOST_RV_REF( Fn) fn, | |
1857 | attributes const& attrs, | |
1858 | StackAllocator stack_alloc) : | |
1859 | impl_( 0) | |
1860 | { | |
1861 | // create a stack-context | |
1862 | stack_context stack_ctx; | |
1863 | // allocate the coroutine-stack | |
1864 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1865 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1866 | // typedef of internal coroutine-type | |
1867 | typedef detail::push_coroutine_object< | |
1868 | pull_coroutine< Arg >, Arg, Fn, StackAllocator | |
1869 | > object_t; | |
1870 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1871 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1872 | BOOST_ASSERT( 0 != size); | |
1873 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1874 | BOOST_ASSERT( 0 != sp); | |
1875 | // placement new for internal coroutine | |
1876 | impl_ = new ( sp) object_t( | |
1877 | boost::forward< Fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1878 | BOOST_ASSERT( impl_); | |
1879 | } | |
1880 | ||
1881 | template< typename Arg > | |
1882 | template< typename Fn > | |
1883 | push_coroutine< Arg & >::push_coroutine( BOOST_RV_REF( Fn) fn, | |
1884 | attributes const& attrs) : | |
1885 | impl_( 0) | |
1886 | { | |
1887 | // create a stack-context | |
1888 | stack_context stack_ctx; | |
1889 | stack_allocator stack_alloc; | |
1890 | // allocate the coroutine-stack | |
1891 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1892 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1893 | // typedef of internal coroutine-type | |
1894 | typedef detail::push_coroutine_object< | |
1895 | pull_coroutine< Arg & >, Arg &, Fn, stack_allocator | |
1896 | > object_t; | |
1897 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1898 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1899 | BOOST_ASSERT( 0 != size); | |
1900 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1901 | BOOST_ASSERT( 0 != sp); | |
1902 | // placement new for internal coroutine | |
1903 | impl_ = new ( sp) object_t( | |
1904 | boost::forward< Fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1905 | BOOST_ASSERT( impl_); | |
1906 | } | |
1907 | ||
1908 | template< typename Arg > | |
1909 | template< typename Fn, typename StackAllocator > | |
1910 | push_coroutine< Arg & >::push_coroutine( BOOST_RV_REF( Fn) fn, | |
1911 | attributes const& attrs, | |
1912 | StackAllocator stack_alloc) : | |
1913 | impl_( 0) | |
1914 | { | |
1915 | // create a stack-context | |
1916 | stack_context stack_ctx; | |
1917 | // allocate the coroutine-stack | |
1918 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1919 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1920 | // typedef of internal coroutine-type | |
1921 | typedef detail::push_coroutine_object< | |
1922 | pull_coroutine< Arg & >, Arg &, Fn, StackAllocator | |
1923 | > object_t; | |
1924 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1925 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1926 | BOOST_ASSERT( 0 != size); | |
1927 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1928 | BOOST_ASSERT( 0 != sp); | |
1929 | // placement new for internal coroutine | |
1930 | impl_ = new ( sp) object_t( | |
1931 | boost::forward< Fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1932 | BOOST_ASSERT( impl_); | |
1933 | } | |
1934 | ||
1935 | template< typename Fn > | |
1936 | push_coroutine< void >::push_coroutine( BOOST_RV_REF( Fn) fn, | |
1937 | attributes const& attrs) : | |
1938 | impl_( 0) | |
1939 | { | |
1940 | // create a stack-context | |
1941 | stack_context stack_ctx; | |
1942 | stack_allocator stack_alloc; | |
1943 | // allocate the coroutine-stack | |
1944 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1945 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1946 | // typedef of internal coroutine-type | |
1947 | typedef detail::push_coroutine_object< | |
1948 | pull_coroutine< void >, void, Fn, stack_allocator | |
1949 | > object_t; | |
1950 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1951 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1952 | BOOST_ASSERT( 0 != size); | |
1953 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1954 | BOOST_ASSERT( 0 != sp); | |
1955 | // placement new for internal coroutine | |
1956 | impl_ = new ( sp) object_t( | |
1957 | boost::forward< Fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1958 | BOOST_ASSERT( impl_); | |
1959 | } | |
1960 | ||
1961 | template< typename Fn, typename StackAllocator > | |
1962 | push_coroutine< void >::push_coroutine( BOOST_RV_REF( Fn) fn, | |
1963 | attributes const& attrs, | |
1964 | StackAllocator stack_alloc) : | |
1965 | impl_( 0) | |
1966 | { | |
1967 | // create a stack-context | |
1968 | stack_context stack_ctx; | |
1969 | // allocate the coroutine-stack | |
1970 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1971 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1972 | // typedef of internal coroutine-type | |
1973 | typedef detail::push_coroutine_object< | |
1974 | pull_coroutine< void >, void, Fn, StackAllocator | |
1975 | > object_t; | |
1976 | // reserve space on top of coroutine-stack for internal coroutine-type | |
1977 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
1978 | BOOST_ASSERT( 0 != size); | |
1979 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
1980 | BOOST_ASSERT( 0 != sp); | |
1981 | // placement new for internal coroutine | |
1982 | impl_ = new ( sp) object_t( | |
1983 | boost::forward< Fn >( fn), attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
1984 | BOOST_ASSERT( impl_); | |
1985 | } | |
1986 | #else | |
1987 | template< typename Arg > | |
1988 | template< typename Fn > | |
1989 | push_coroutine< Arg >::push_coroutine( Fn fn, | |
1990 | attributes const& attrs) : | |
1991 | impl_( 0) | |
1992 | { | |
1993 | // create a stack-context | |
1994 | stack_context stack_ctx; | |
1995 | stack_allocator stack_alloc; | |
1996 | // allocate the coroutine-stack | |
1997 | stack_alloc.allocate( stack_ctx, attrs.size); | |
1998 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
1999 | // typedef of internal coroutine-type | |
2000 | typedef detail::push_coroutine_object< | |
2001 | pull_coroutine< Arg >, Arg, Fn, stack_allocator | |
2002 | > object_t; | |
2003 | // reserve space on top of coroutine-stack for internal coroutine-type | |
2004 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
2005 | BOOST_ASSERT( 0 != size); | |
2006 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
2007 | BOOST_ASSERT( 0 != sp); | |
2008 | // placement new for internal coroutine | |
2009 | impl_ = new ( sp) object_t( | |
2010 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
2011 | BOOST_ASSERT( impl_); | |
2012 | } | |
2013 | ||
2014 | template< typename Arg > | |
2015 | template< typename Fn, typename StackAllocator > | |
2016 | push_coroutine< Arg >::push_coroutine( Fn fn, | |
2017 | attributes const& attrs, | |
2018 | StackAllocator stack_alloc) : | |
2019 | impl_( 0) | |
2020 | { | |
2021 | // create a stack-context | |
2022 | stack_context stack_ctx; | |
2023 | // allocate the coroutine-stack | |
2024 | stack_alloc.allocate( stack_ctx, attrs.size); | |
2025 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
2026 | // typedef of internal coroutine-type | |
2027 | typedef detail::push_coroutine_object< | |
2028 | pull_coroutine< Arg >, Arg, Fn, StackAllocator | |
2029 | > object_t; | |
2030 | // reserve space on top of coroutine-stack for internal coroutine-type | |
2031 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
2032 | BOOST_ASSERT( 0 != size); | |
2033 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
2034 | BOOST_ASSERT( 0 != sp); | |
2035 | // placement new for internal coroutine | |
2036 | impl_ = new ( sp) object_t( | |
2037 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
2038 | BOOST_ASSERT( impl_); | |
2039 | } | |
2040 | ||
2041 | template< typename Arg > | |
2042 | template< typename Fn > | |
2043 | push_coroutine< Arg & >::push_coroutine( Fn fn, | |
2044 | attributes const& attrs) : | |
2045 | impl_( 0) | |
2046 | { | |
2047 | // create a stack-context | |
2048 | stack_context stack_ctx; | |
2049 | stack_allocator stack_alloc; | |
2050 | // allocate the coroutine-stack | |
2051 | stack_alloc.allocate( stack_ctx, attrs.size); | |
2052 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
2053 | // typedef of internal coroutine-type | |
2054 | typedef detail::push_coroutine_object< | |
2055 | pull_coroutine< Arg & >, Arg &, Fn, stack_allocator | |
2056 | > object_t; | |
2057 | // reserve space on top of coroutine-stack for internal coroutine-type | |
2058 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
2059 | BOOST_ASSERT( 0 != size); | |
2060 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
2061 | BOOST_ASSERT( 0 != sp); | |
2062 | // placement new for internal coroutine | |
2063 | impl_ = new ( sp) object_t( | |
2064 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
2065 | BOOST_ASSERT( impl_); | |
2066 | } | |
2067 | ||
2068 | template< typename Arg > | |
2069 | template< typename Fn, typename StackAllocator > | |
2070 | push_coroutine< Arg & >::push_coroutine( Fn fn, | |
2071 | attributes const& attrs, | |
2072 | StackAllocator stack_alloc) : | |
2073 | impl_( 0) | |
2074 | { | |
2075 | // create a stack-context | |
2076 | stack_context stack_ctx; | |
2077 | // allocate the coroutine-stack | |
2078 | stack_alloc.allocate( stack_ctx, attrs.size); | |
2079 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
2080 | // typedef of internal coroutine-type | |
2081 | typedef detail::push_coroutine_object< | |
2082 | pull_coroutine< Arg & >, Arg &, Fn, StackAllocator | |
2083 | > object_t; | |
2084 | // reserve space on top of coroutine-stack for internal coroutine-type | |
2085 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
2086 | BOOST_ASSERT( 0 != size); | |
2087 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
2088 | BOOST_ASSERT( 0 != sp); | |
2089 | // placement new for internal coroutine | |
2090 | impl_ = new ( sp) object_t( | |
2091 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
2092 | BOOST_ASSERT( impl_); | |
2093 | } | |
2094 | ||
2095 | template< typename Fn > | |
2096 | push_coroutine< void >::push_coroutine( Fn fn, | |
2097 | attributes const& attrs) : | |
2098 | impl_( 0) | |
2099 | { | |
2100 | // create a stack-context | |
2101 | stack_context stack_ctx; | |
2102 | stack_allocator stack_alloc; | |
2103 | // allocate the coroutine-stack | |
2104 | stack_alloc.allocate( stack_ctx, attrs.size); | |
2105 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
2106 | // typedef of internal coroutine-type | |
2107 | typedef detail::push_coroutine_object< | |
2108 | pull_coroutine< void >, void, Fn, stack_allocator | |
2109 | > object_t; | |
2110 | // reserve space on top of coroutine-stack for internal coroutine-type | |
2111 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
2112 | BOOST_ASSERT( 0 != size); | |
2113 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
2114 | BOOST_ASSERT( 0 != sp); | |
2115 | // placement new for internal coroutine | |
2116 | impl_ = new ( sp) object_t( | |
2117 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
2118 | BOOST_ASSERT( impl_); | |
2119 | } | |
2120 | ||
2121 | template< typename Fn, typename StackAllocator > | |
2122 | push_coroutine< void >::push_coroutine( Fn fn, | |
2123 | attributes const& attrs, | |
2124 | StackAllocator stack_alloc) : | |
2125 | impl_( 0) | |
2126 | { | |
2127 | // create a stack-context | |
2128 | stack_context stack_ctx; | |
2129 | // allocate the coroutine-stack | |
2130 | stack_alloc.allocate( stack_ctx, attrs.size); | |
2131 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
2132 | // typedef of internal coroutine-type | |
2133 | typedef detail::push_coroutine_object< | |
2134 | pull_coroutine< void >, void, Fn, StackAllocator | |
2135 | > object_t; | |
2136 | // reserve space on top of coroutine-stack for internal coroutine-type | |
2137 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
2138 | BOOST_ASSERT( 0 != size); | |
2139 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
2140 | BOOST_ASSERT( 0 != sp); | |
2141 | // placement new for internal coroutine | |
2142 | impl_ = new ( sp) object_t( | |
2143 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
2144 | BOOST_ASSERT( impl_); | |
2145 | } | |
2146 | ||
2147 | template< typename Arg > | |
2148 | template< typename Fn > | |
2149 | push_coroutine< Arg >::push_coroutine( BOOST_RV_REF( Fn) fn, | |
2150 | attributes const& attrs) : | |
2151 | impl_( 0) | |
2152 | { | |
2153 | // create a stack-context | |
2154 | stack_context stack_ctx; | |
2155 | stack_allocator stack_alloc; | |
2156 | // allocate the coroutine-stack | |
2157 | stack_alloc.allocate( stack_ctx, attrs.size); | |
2158 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
2159 | // typedef of internal coroutine-type | |
2160 | typedef detail::push_coroutine_object< | |
2161 | pull_coroutine< Arg >, Arg, Fn, stack_allocator | |
2162 | > object_t; | |
2163 | // reserve space on top of coroutine-stack for internal coroutine-type | |
2164 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
2165 | BOOST_ASSERT( 0 != size); | |
2166 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
2167 | BOOST_ASSERT( 0 != sp); | |
2168 | // placement new for internal coroutine | |
2169 | impl_ = new ( sp) object_t( | |
2170 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
2171 | BOOST_ASSERT( impl_); | |
2172 | } | |
2173 | ||
2174 | template< typename Arg > | |
2175 | template< typename Fn, typename StackAllocator > | |
2176 | push_coroutine< Arg >::push_coroutine( BOOST_RV_REF( Fn) fn, | |
2177 | attributes const& attrs, | |
2178 | StackAllocator stack_alloc) : | |
2179 | impl_( 0) | |
2180 | { | |
2181 | // create a stack-context | |
2182 | stack_context stack_ctx; | |
2183 | // allocate the coroutine-stack | |
2184 | stack_alloc.allocate( stack_ctx, attrs.size); | |
2185 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
2186 | // typedef of internal coroutine-type | |
2187 | typedef detail::push_coroutine_object< | |
2188 | pull_coroutine< Arg >, Arg, Fn, StackAllocator | |
2189 | > object_t; | |
2190 | // reserve space on top of coroutine-stack for internal coroutine-type | |
2191 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
2192 | BOOST_ASSERT( 0 != size); | |
2193 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
2194 | BOOST_ASSERT( 0 != sp); | |
2195 | // placement new for internal coroutine | |
2196 | impl_ = new ( sp) object_t( | |
2197 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
2198 | BOOST_ASSERT( impl_); | |
2199 | } | |
2200 | ||
2201 | template< typename Arg > | |
2202 | template< typename Fn > | |
2203 | push_coroutine< Arg & >::push_coroutine( BOOST_RV_REF( Fn) fn, | |
2204 | attributes const& attrs) : | |
2205 | impl_( 0) | |
2206 | { | |
2207 | // create a stack-context | |
2208 | stack_context stack_ctx; | |
2209 | stack_allocator stack_alloc; | |
2210 | // allocate the coroutine-stack | |
2211 | stack_alloc.allocate( stack_ctx, attrs.size); | |
2212 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
2213 | // typedef of internal coroutine-type | |
2214 | typedef detail::push_coroutine_object< | |
2215 | pull_coroutine< Arg & >, Arg &, Fn, stack_allocator | |
2216 | > object_t; | |
2217 | // reserve space on top of coroutine-stack for internal coroutine-type | |
2218 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
2219 | BOOST_ASSERT( 0 != size); | |
2220 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
2221 | BOOST_ASSERT( 0 != sp); | |
2222 | // placement new for internal coroutine | |
2223 | impl_ = new ( sp) object_t( | |
2224 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
2225 | BOOST_ASSERT( impl_); | |
2226 | } | |
2227 | ||
2228 | template< typename Arg > | |
2229 | template< typename Fn, typename StackAllocator > | |
2230 | push_coroutine< Arg & >::push_coroutine( BOOST_RV_REF( Fn) fn, | |
2231 | attributes const& attrs, | |
2232 | StackAllocator stack_alloc) : | |
2233 | impl_( 0) | |
2234 | { | |
2235 | // create a stack-context | |
2236 | stack_context stack_ctx; | |
2237 | // allocate the coroutine-stack | |
2238 | stack_alloc.allocate( stack_ctx, attrs.size); | |
2239 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
2240 | // typedef of internal coroutine-type | |
2241 | typedef detail::push_coroutine_object< | |
2242 | pull_coroutine< Arg & >, Arg &, Fn, StackAllocator | |
2243 | > object_t; | |
2244 | // reserve space on top of coroutine-stack for internal coroutine-type | |
2245 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
2246 | BOOST_ASSERT( 0 != size); | |
2247 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
2248 | BOOST_ASSERT( 0 != sp); | |
2249 | // placement new for internal coroutine | |
2250 | impl_ = new ( sp) object_t( | |
2251 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
2252 | BOOST_ASSERT( impl_); | |
2253 | } | |
2254 | ||
2255 | template< typename Fn > | |
2256 | push_coroutine< void >::push_coroutine( BOOST_RV_REF( Fn) fn, | |
2257 | attributes const& attrs) : | |
2258 | impl_( 0) | |
2259 | { | |
2260 | // create a stack-context | |
2261 | stack_context stack_ctx; | |
2262 | stack_allocator stack_alloc; | |
2263 | // allocate the coroutine-stack | |
2264 | stack_alloc.allocate( stack_ctx, attrs.size); | |
2265 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
2266 | // typedef of internal coroutine-type | |
2267 | typedef detail::push_coroutine_object< | |
2268 | pull_coroutine< void >, void, Fn, stack_allocator | |
2269 | > object_t; | |
2270 | // reserve space on top of coroutine-stack for internal coroutine-type | |
2271 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
2272 | BOOST_ASSERT( 0 != size); | |
2273 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
2274 | BOOST_ASSERT( 0 != sp); | |
2275 | // placement new for internal coroutine | |
2276 | impl_ = new ( sp) object_t( | |
2277 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
2278 | BOOST_ASSERT( impl_); | |
2279 | } | |
2280 | ||
2281 | template< typename Fn, typename StackAllocator > | |
2282 | push_coroutine< void >::push_coroutine( BOOST_RV_REF( Fn) fn, | |
2283 | attributes const& attrs, | |
2284 | StackAllocator stack_alloc) : | |
2285 | impl_( 0) | |
2286 | { | |
2287 | // create a stack-context | |
2288 | stack_context stack_ctx; | |
2289 | // allocate the coroutine-stack | |
2290 | stack_alloc.allocate( stack_ctx, attrs.size); | |
2291 | BOOST_ASSERT( 0 != stack_ctx.sp); | |
2292 | // typedef of internal coroutine-type | |
2293 | typedef detail::push_coroutine_object< | |
2294 | pull_coroutine< void >, void, Fn, StackAllocator | |
2295 | > object_t; | |
2296 | // reserve space on top of coroutine-stack for internal coroutine-type | |
2297 | std::size_t size = stack_ctx.size - sizeof( object_t); | |
2298 | BOOST_ASSERT( 0 != size); | |
2299 | void * sp = static_cast< char * >( stack_ctx.sp) - sizeof( object_t); | |
2300 | BOOST_ASSERT( 0 != sp); | |
2301 | // placement new for internal coroutine | |
2302 | impl_ = new ( sp) object_t( | |
2303 | fn, attrs, detail::preallocated( sp, size, stack_ctx), stack_alloc); | |
2304 | BOOST_ASSERT( impl_); | |
2305 | } | |
2306 | #endif | |
2307 | ||
2308 | template< typename R > | |
2309 | void swap( pull_coroutine< R > & l, pull_coroutine< R > & r) BOOST_NOEXCEPT | |
2310 | { l.swap( r); } | |
2311 | ||
2312 | template< typename Arg > | |
2313 | void swap( push_coroutine< Arg > & l, push_coroutine< Arg > & r) BOOST_NOEXCEPT | |
2314 | { l.swap( r); } | |
2315 | ||
2316 | template< typename R > | |
2317 | typename pull_coroutine< R >::iterator | |
2318 | range_begin( pull_coroutine< R > & c) | |
2319 | { return typename pull_coroutine< R >::iterator( & c); } | |
2320 | ||
2321 | template< typename R > | |
2322 | typename pull_coroutine< R >::const_iterator | |
2323 | range_begin( pull_coroutine< R > const& c) | |
2324 | { return typename pull_coroutine< R >::const_iterator( & c); } | |
2325 | ||
2326 | template< typename R > | |
2327 | typename pull_coroutine< R >::iterator | |
2328 | range_end( pull_coroutine< R > &) | |
2329 | { return typename pull_coroutine< R >::iterator(); } | |
2330 | ||
2331 | template< typename R > | |
2332 | typename pull_coroutine< R >::const_iterator | |
2333 | range_end( pull_coroutine< R > const&) | |
2334 | { return typename pull_coroutine< R >::const_iterator(); } | |
2335 | ||
2336 | template< typename Arg > | |
2337 | typename push_coroutine< Arg >::iterator | |
2338 | range_begin( push_coroutine< Arg > & c) | |
2339 | { return typename push_coroutine< Arg >::iterator( & c); } | |
2340 | ||
2341 | template< typename Arg > | |
2342 | typename push_coroutine< Arg >::iterator | |
2343 | range_end( push_coroutine< Arg > &) | |
2344 | { return typename push_coroutine< Arg >::iterator(); } | |
2345 | ||
2346 | template< typename T > | |
2347 | struct asymmetric_coroutine | |
2348 | { | |
2349 | typedef push_coroutine< T > push_type; | |
2350 | typedef pull_coroutine< T > pull_type; | |
2351 | }; | |
2352 | ||
2353 | // deprecated | |
2354 | template< typename T > | |
2355 | struct coroutine | |
2356 | { | |
2357 | typedef push_coroutine< T > push_type; | |
2358 | typedef pull_coroutine< T > pull_type; | |
2359 | }; | |
2360 | ||
2361 | template< typename R > | |
2362 | typename pull_coroutine< R >::iterator | |
2363 | begin( pull_coroutine< R > & c) | |
20effc67 | 2364 | { return coroutines::range_begin( c); } |
7c673cae FG |
2365 | |
2366 | template< typename R > | |
2367 | typename pull_coroutine< R >::const_iterator | |
2368 | begin( pull_coroutine< R > const& c) | |
20effc67 | 2369 | { return coroutines::range_begin( c); } |
7c673cae FG |
2370 | |
2371 | template< typename R > | |
2372 | typename pull_coroutine< R >::iterator | |
2373 | end( pull_coroutine< R > & c) | |
20effc67 | 2374 | { return coroutines::range_end( c); } |
7c673cae FG |
2375 | |
2376 | template< typename R > | |
2377 | typename pull_coroutine< R >::const_iterator | |
2378 | end( pull_coroutine< R > const& c) | |
20effc67 | 2379 | { return coroutines::range_end( c); } |
7c673cae FG |
2380 | |
2381 | template< typename R > | |
2382 | typename push_coroutine< R >::iterator | |
2383 | begin( push_coroutine< R > & c) | |
20effc67 | 2384 | { return coroutines::range_begin( c); } |
7c673cae FG |
2385 | |
2386 | template< typename R > | |
2387 | typename push_coroutine< R >::iterator | |
2388 | end( push_coroutine< R > & c) | |
20effc67 | 2389 | { return coroutines::range_end( c); } |
7c673cae FG |
2390 | |
2391 | } | |
2392 | ||
20effc67 TL |
2393 | // forward declaration of Boost.Range traits to break dependency on it |
2394 | template<typename C, typename Enabler> | |
2395 | struct range_mutable_iterator; | |
2396 | ||
2397 | template<typename C, typename Enabler> | |
2398 | struct range_const_iterator; | |
2399 | ||
7c673cae | 2400 | template< typename Arg > |
20effc67 | 2401 | struct range_mutable_iterator< coroutines::push_coroutine< Arg >, void > |
7c673cae FG |
2402 | { typedef typename coroutines::push_coroutine< Arg >::iterator type; }; |
2403 | ||
2404 | template< typename R > | |
20effc67 | 2405 | struct range_mutable_iterator< coroutines::pull_coroutine< R >, void > |
7c673cae FG |
2406 | { typedef typename coroutines::pull_coroutine< R >::iterator type; }; |
2407 | ||
2408 | } | |
2409 | ||
2410 | #ifdef BOOST_HAS_ABI_HEADERS | |
2411 | # include BOOST_ABI_SUFFIX | |
2412 | #endif | |
2413 | ||
2414 | #endif // BOOST_COROUTINES_ASYMMETRIC_COROUTINE_H |