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7c673cae FG |
1 | // |
2 | // impl/read_until.hpp | |
3 | // ~~~~~~~~~~~~~~~~~~~ | |
4 | // | |
11fdf7f2 | 5 | // Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com) |
7c673cae FG |
6 | // |
7 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | |
8 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
9 | // | |
10 | ||
11 | #ifndef BOOST_ASIO_IMPL_READ_UNTIL_HPP | |
12 | #define BOOST_ASIO_IMPL_READ_UNTIL_HPP | |
13 | ||
14 | #if defined(_MSC_VER) && (_MSC_VER >= 1200) | |
15 | # pragma once | |
16 | #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) | |
17 | ||
18 | #include <algorithm> | |
19 | #include <string> | |
20 | #include <vector> | |
21 | #include <utility> | |
b32b8144 FG |
22 | #include <boost/asio/associated_allocator.hpp> |
23 | #include <boost/asio/associated_executor.hpp> | |
7c673cae FG |
24 | #include <boost/asio/buffer.hpp> |
25 | #include <boost/asio/buffers_iterator.hpp> | |
26 | #include <boost/asio/detail/bind_handler.hpp> | |
27 | #include <boost/asio/detail/handler_alloc_helpers.hpp> | |
28 | #include <boost/asio/detail/handler_cont_helpers.hpp> | |
29 | #include <boost/asio/detail/handler_invoke_helpers.hpp> | |
30 | #include <boost/asio/detail/handler_type_requirements.hpp> | |
31 | #include <boost/asio/detail/limits.hpp> | |
32 | #include <boost/asio/detail/throw_error.hpp> | |
33 | ||
34 | #include <boost/asio/detail/push_options.hpp> | |
35 | ||
36 | namespace boost { | |
37 | namespace asio { | |
38 | ||
b32b8144 | 39 | template <typename SyncReadStream, typename DynamicBuffer> |
7c673cae | 40 | inline std::size_t read_until(SyncReadStream& s, |
b32b8144 | 41 | BOOST_ASIO_MOVE_ARG(DynamicBuffer) buffers, char delim) |
7c673cae FG |
42 | { |
43 | boost::system::error_code ec; | |
b32b8144 FG |
44 | std::size_t bytes_transferred = read_until(s, |
45 | BOOST_ASIO_MOVE_CAST(DynamicBuffer)(buffers), delim, ec); | |
7c673cae FG |
46 | boost::asio::detail::throw_error(ec, "read_until"); |
47 | return bytes_transferred; | |
48 | } | |
49 | ||
b32b8144 | 50 | template <typename SyncReadStream, typename DynamicBuffer> |
7c673cae | 51 | std::size_t read_until(SyncReadStream& s, |
b32b8144 FG |
52 | BOOST_ASIO_MOVE_ARG(DynamicBuffer) buffers, |
53 | char delim, boost::system::error_code& ec) | |
7c673cae | 54 | { |
b32b8144 FG |
55 | typename decay<DynamicBuffer>::type b( |
56 | BOOST_ASIO_MOVE_CAST(DynamicBuffer)(buffers)); | |
57 | ||
7c673cae FG |
58 | std::size_t search_position = 0; |
59 | for (;;) | |
60 | { | |
61 | // Determine the range of the data to be searched. | |
b32b8144 FG |
62 | typedef typename DynamicBuffer::const_buffers_type buffers_type; |
63 | typedef buffers_iterator<buffers_type> iterator; | |
64 | buffers_type data_buffers = b.data(); | |
65 | iterator begin = iterator::begin(data_buffers); | |
7c673cae | 66 | iterator start_pos = begin + search_position; |
b32b8144 | 67 | iterator end = iterator::end(data_buffers); |
7c673cae FG |
68 | |
69 | // Look for a match. | |
70 | iterator iter = std::find(start_pos, end, delim); | |
71 | if (iter != end) | |
72 | { | |
73 | // Found a match. We're done. | |
74 | ec = boost::system::error_code(); | |
75 | return iter - begin + 1; | |
76 | } | |
77 | else | |
78 | { | |
79 | // No match. Next search can start with the new data. | |
80 | search_position = end - begin; | |
81 | } | |
82 | ||
83 | // Check if buffer is full. | |
84 | if (b.size() == b.max_size()) | |
85 | { | |
86 | ec = error::not_found; | |
87 | return 0; | |
88 | } | |
89 | ||
90 | // Need more data. | |
b32b8144 FG |
91 | std::size_t bytes_to_read = std::min<std::size_t>( |
92 | std::max<std::size_t>(512, b.capacity() - b.size()), | |
93 | std::min<std::size_t>(65536, b.max_size() - b.size())); | |
7c673cae FG |
94 | b.commit(s.read_some(b.prepare(bytes_to_read), ec)); |
95 | if (ec) | |
96 | return 0; | |
97 | } | |
98 | } | |
99 | ||
b32b8144 | 100 | template <typename SyncReadStream, typename DynamicBuffer> |
7c673cae | 101 | inline std::size_t read_until(SyncReadStream& s, |
b32b8144 FG |
102 | BOOST_ASIO_MOVE_ARG(DynamicBuffer) buffers, |
103 | BOOST_ASIO_STRING_VIEW_PARAM delim) | |
7c673cae FG |
104 | { |
105 | boost::system::error_code ec; | |
b32b8144 FG |
106 | std::size_t bytes_transferred = read_until(s, |
107 | BOOST_ASIO_MOVE_CAST(DynamicBuffer)(buffers), delim, ec); | |
7c673cae FG |
108 | boost::asio::detail::throw_error(ec, "read_until"); |
109 | return bytes_transferred; | |
110 | } | |
111 | ||
112 | namespace detail | |
113 | { | |
114 | // Algorithm that finds a subsequence of equal values in a sequence. Returns | |
115 | // (iterator,true) if a full match was found, in which case the iterator | |
116 | // points to the beginning of the match. Returns (iterator,false) if a | |
117 | // partial match was found at the end of the first sequence, in which case | |
118 | // the iterator points to the beginning of the partial match. Returns | |
119 | // (last1,false) if no full or partial match was found. | |
120 | template <typename Iterator1, typename Iterator2> | |
121 | std::pair<Iterator1, bool> partial_search( | |
122 | Iterator1 first1, Iterator1 last1, Iterator2 first2, Iterator2 last2) | |
123 | { | |
124 | for (Iterator1 iter1 = first1; iter1 != last1; ++iter1) | |
125 | { | |
126 | Iterator1 test_iter1 = iter1; | |
127 | Iterator2 test_iter2 = first2; | |
128 | for (;; ++test_iter1, ++test_iter2) | |
129 | { | |
130 | if (test_iter2 == last2) | |
131 | return std::make_pair(iter1, true); | |
132 | if (test_iter1 == last1) | |
133 | { | |
134 | if (test_iter2 != first2) | |
135 | return std::make_pair(iter1, false); | |
136 | else | |
137 | break; | |
138 | } | |
139 | if (*test_iter1 != *test_iter2) | |
140 | break; | |
141 | } | |
142 | } | |
143 | return std::make_pair(last1, false); | |
144 | } | |
145 | } // namespace detail | |
146 | ||
b32b8144 | 147 | template <typename SyncReadStream, typename DynamicBuffer> |
7c673cae | 148 | std::size_t read_until(SyncReadStream& s, |
b32b8144 FG |
149 | BOOST_ASIO_MOVE_ARG(DynamicBuffer) buffers, |
150 | BOOST_ASIO_STRING_VIEW_PARAM delim, boost::system::error_code& ec) | |
7c673cae | 151 | { |
b32b8144 FG |
152 | typename decay<DynamicBuffer>::type b( |
153 | BOOST_ASIO_MOVE_CAST(DynamicBuffer)(buffers)); | |
154 | ||
7c673cae FG |
155 | std::size_t search_position = 0; |
156 | for (;;) | |
157 | { | |
158 | // Determine the range of the data to be searched. | |
b32b8144 FG |
159 | typedef typename DynamicBuffer::const_buffers_type buffers_type; |
160 | typedef buffers_iterator<buffers_type> iterator; | |
161 | buffers_type data_buffers = b.data(); | |
162 | iterator begin = iterator::begin(data_buffers); | |
7c673cae | 163 | iterator start_pos = begin + search_position; |
b32b8144 | 164 | iterator end = iterator::end(data_buffers); |
7c673cae FG |
165 | |
166 | // Look for a match. | |
167 | std::pair<iterator, bool> result = detail::partial_search( | |
168 | start_pos, end, delim.begin(), delim.end()); | |
169 | if (result.first != end) | |
170 | { | |
171 | if (result.second) | |
172 | { | |
173 | // Full match. We're done. | |
174 | ec = boost::system::error_code(); | |
175 | return result.first - begin + delim.length(); | |
176 | } | |
177 | else | |
178 | { | |
179 | // Partial match. Next search needs to start from beginning of match. | |
180 | search_position = result.first - begin; | |
181 | } | |
182 | } | |
183 | else | |
184 | { | |
185 | // No match. Next search can start with the new data. | |
186 | search_position = end - begin; | |
187 | } | |
188 | ||
189 | // Check if buffer is full. | |
190 | if (b.size() == b.max_size()) | |
191 | { | |
192 | ec = error::not_found; | |
193 | return 0; | |
194 | } | |
195 | ||
196 | // Need more data. | |
b32b8144 FG |
197 | std::size_t bytes_to_read = std::min<std::size_t>( |
198 | std::max<std::size_t>(512, b.capacity() - b.size()), | |
199 | std::min<std::size_t>(65536, b.max_size() - b.size())); | |
7c673cae FG |
200 | b.commit(s.read_some(b.prepare(bytes_to_read), ec)); |
201 | if (ec) | |
202 | return 0; | |
203 | } | |
204 | } | |
205 | ||
b32b8144 | 206 | #if !defined(BOOST_ASIO_NO_EXTENSIONS) |
7c673cae FG |
207 | #if defined(BOOST_ASIO_HAS_BOOST_REGEX) |
208 | ||
b32b8144 | 209 | template <typename SyncReadStream, typename DynamicBuffer> |
7c673cae | 210 | inline std::size_t read_until(SyncReadStream& s, |
b32b8144 FG |
211 | BOOST_ASIO_MOVE_ARG(DynamicBuffer) buffers, |
212 | const boost::regex& expr) | |
7c673cae FG |
213 | { |
214 | boost::system::error_code ec; | |
b32b8144 FG |
215 | std::size_t bytes_transferred = read_until(s, |
216 | BOOST_ASIO_MOVE_CAST(DynamicBuffer)(buffers), expr, ec); | |
7c673cae FG |
217 | boost::asio::detail::throw_error(ec, "read_until"); |
218 | return bytes_transferred; | |
219 | } | |
220 | ||
b32b8144 | 221 | template <typename SyncReadStream, typename DynamicBuffer> |
7c673cae | 222 | std::size_t read_until(SyncReadStream& s, |
b32b8144 FG |
223 | BOOST_ASIO_MOVE_ARG(DynamicBuffer) buffers, |
224 | const boost::regex& expr, boost::system::error_code& ec) | |
7c673cae | 225 | { |
b32b8144 FG |
226 | typename decay<DynamicBuffer>::type b( |
227 | BOOST_ASIO_MOVE_CAST(DynamicBuffer)(buffers)); | |
228 | ||
7c673cae FG |
229 | std::size_t search_position = 0; |
230 | for (;;) | |
231 | { | |
232 | // Determine the range of the data to be searched. | |
b32b8144 FG |
233 | typedef typename DynamicBuffer::const_buffers_type buffers_type; |
234 | typedef buffers_iterator<buffers_type> iterator; | |
235 | buffers_type data_buffers = b.data(); | |
236 | iterator begin = iterator::begin(data_buffers); | |
7c673cae | 237 | iterator start_pos = begin + search_position; |
b32b8144 | 238 | iterator end = iterator::end(data_buffers); |
7c673cae FG |
239 | |
240 | // Look for a match. | |
241 | boost::match_results<iterator, | |
242 | typename std::vector<boost::sub_match<iterator> >::allocator_type> | |
243 | match_results; | |
244 | if (regex_search(start_pos, end, match_results, expr, | |
245 | boost::match_default | boost::match_partial)) | |
246 | { | |
247 | if (match_results[0].matched) | |
248 | { | |
249 | // Full match. We're done. | |
250 | ec = boost::system::error_code(); | |
251 | return match_results[0].second - begin; | |
252 | } | |
253 | else | |
254 | { | |
255 | // Partial match. Next search needs to start from beginning of match. | |
256 | search_position = match_results[0].first - begin; | |
257 | } | |
258 | } | |
259 | else | |
260 | { | |
261 | // No match. Next search can start with the new data. | |
262 | search_position = end - begin; | |
263 | } | |
264 | ||
265 | // Check if buffer is full. | |
266 | if (b.size() == b.max_size()) | |
267 | { | |
268 | ec = error::not_found; | |
269 | return 0; | |
270 | } | |
271 | ||
272 | // Need more data. | |
273 | std::size_t bytes_to_read = read_size_helper(b, 65536); | |
274 | b.commit(s.read_some(b.prepare(bytes_to_read), ec)); | |
275 | if (ec) | |
276 | return 0; | |
277 | } | |
278 | } | |
279 | ||
280 | #endif // defined(BOOST_ASIO_HAS_BOOST_REGEX) | |
281 | ||
b32b8144 FG |
282 | template <typename SyncReadStream, |
283 | typename DynamicBuffer, typename MatchCondition> | |
284 | inline std::size_t read_until(SyncReadStream& s, | |
285 | BOOST_ASIO_MOVE_ARG(DynamicBuffer) buffers, | |
286 | MatchCondition match_condition, | |
287 | typename enable_if<is_match_condition<MatchCondition>::value>::type*) | |
288 | { | |
289 | boost::system::error_code ec; | |
290 | std::size_t bytes_transferred = read_until(s, | |
291 | BOOST_ASIO_MOVE_CAST(DynamicBuffer)(buffers), | |
292 | match_condition, ec); | |
293 | boost::asio::detail::throw_error(ec, "read_until"); | |
294 | return bytes_transferred; | |
295 | } | |
296 | ||
297 | template <typename SyncReadStream, | |
298 | typename DynamicBuffer, typename MatchCondition> | |
7c673cae | 299 | std::size_t read_until(SyncReadStream& s, |
b32b8144 | 300 | BOOST_ASIO_MOVE_ARG(DynamicBuffer) buffers, |
7c673cae FG |
301 | MatchCondition match_condition, boost::system::error_code& ec, |
302 | typename enable_if<is_match_condition<MatchCondition>::value>::type*) | |
303 | { | |
b32b8144 FG |
304 | typename decay<DynamicBuffer>::type b( |
305 | BOOST_ASIO_MOVE_CAST(DynamicBuffer)(buffers)); | |
306 | ||
7c673cae FG |
307 | std::size_t search_position = 0; |
308 | for (;;) | |
309 | { | |
310 | // Determine the range of the data to be searched. | |
b32b8144 FG |
311 | typedef typename DynamicBuffer::const_buffers_type buffers_type; |
312 | typedef buffers_iterator<buffers_type> iterator; | |
313 | buffers_type data_buffers = b.data(); | |
314 | iterator begin = iterator::begin(data_buffers); | |
7c673cae | 315 | iterator start_pos = begin + search_position; |
b32b8144 | 316 | iterator end = iterator::end(data_buffers); |
7c673cae FG |
317 | |
318 | // Look for a match. | |
319 | std::pair<iterator, bool> result = match_condition(start_pos, end); | |
320 | if (result.second) | |
321 | { | |
322 | // Full match. We're done. | |
323 | ec = boost::system::error_code(); | |
324 | return result.first - begin; | |
325 | } | |
326 | else if (result.first != end) | |
327 | { | |
328 | // Partial match. Next search needs to start from beginning of match. | |
329 | search_position = result.first - begin; | |
330 | } | |
331 | else | |
332 | { | |
333 | // No match. Next search can start with the new data. | |
334 | search_position = end - begin; | |
335 | } | |
336 | ||
337 | // Check if buffer is full. | |
338 | if (b.size() == b.max_size()) | |
339 | { | |
340 | ec = error::not_found; | |
341 | return 0; | |
342 | } | |
343 | ||
344 | // Need more data. | |
b32b8144 FG |
345 | std::size_t bytes_to_read = std::min<std::size_t>( |
346 | std::max<std::size_t>(512, b.capacity() - b.size()), | |
347 | std::min<std::size_t>(65536, b.max_size() - b.size())); | |
7c673cae FG |
348 | b.commit(s.read_some(b.prepare(bytes_to_read), ec)); |
349 | if (ec) | |
350 | return 0; | |
351 | } | |
352 | } | |
353 | ||
b32b8144 FG |
354 | #if !defined(BOOST_ASIO_NO_IOSTREAM) |
355 | ||
356 | template <typename SyncReadStream, typename Allocator> | |
357 | inline std::size_t read_until(SyncReadStream& s, | |
358 | boost::asio::basic_streambuf<Allocator>& b, char delim) | |
359 | { | |
360 | return read_until(s, basic_streambuf_ref<Allocator>(b), delim); | |
361 | } | |
362 | ||
363 | template <typename SyncReadStream, typename Allocator> | |
364 | inline std::size_t read_until(SyncReadStream& s, | |
365 | boost::asio::basic_streambuf<Allocator>& b, char delim, | |
366 | boost::system::error_code& ec) | |
367 | { | |
368 | return read_until(s, basic_streambuf_ref<Allocator>(b), delim, ec); | |
369 | } | |
370 | ||
371 | template <typename SyncReadStream, typename Allocator> | |
372 | inline std::size_t read_until(SyncReadStream& s, | |
373 | boost::asio::basic_streambuf<Allocator>& b, | |
374 | BOOST_ASIO_STRING_VIEW_PARAM delim) | |
375 | { | |
376 | return read_until(s, basic_streambuf_ref<Allocator>(b), delim); | |
377 | } | |
378 | ||
379 | template <typename SyncReadStream, typename Allocator> | |
380 | inline std::size_t read_until(SyncReadStream& s, | |
381 | boost::asio::basic_streambuf<Allocator>& b, | |
382 | BOOST_ASIO_STRING_VIEW_PARAM delim, boost::system::error_code& ec) | |
383 | { | |
384 | return read_until(s, basic_streambuf_ref<Allocator>(b), delim, ec); | |
385 | } | |
386 | ||
387 | #if defined(BOOST_ASIO_HAS_BOOST_REGEX) | |
388 | ||
389 | template <typename SyncReadStream, typename Allocator> | |
390 | inline std::size_t read_until(SyncReadStream& s, | |
391 | boost::asio::basic_streambuf<Allocator>& b, const boost::regex& expr) | |
392 | { | |
393 | return read_until(s, basic_streambuf_ref<Allocator>(b), expr); | |
394 | } | |
395 | ||
396 | template <typename SyncReadStream, typename Allocator> | |
397 | inline std::size_t read_until(SyncReadStream& s, | |
398 | boost::asio::basic_streambuf<Allocator>& b, const boost::regex& expr, | |
399 | boost::system::error_code& ec) | |
400 | { | |
401 | return read_until(s, basic_streambuf_ref<Allocator>(b), expr, ec); | |
402 | } | |
403 | ||
404 | #endif // defined(BOOST_ASIO_HAS_BOOST_REGEX) | |
405 | ||
7c673cae FG |
406 | template <typename SyncReadStream, typename Allocator, typename MatchCondition> |
407 | inline std::size_t read_until(SyncReadStream& s, | |
408 | boost::asio::basic_streambuf<Allocator>& b, MatchCondition match_condition, | |
409 | typename enable_if<is_match_condition<MatchCondition>::value>::type*) | |
410 | { | |
b32b8144 FG |
411 | return read_until(s, basic_streambuf_ref<Allocator>(b), match_condition); |
412 | } | |
413 | ||
414 | template <typename SyncReadStream, typename Allocator, typename MatchCondition> | |
415 | inline std::size_t read_until(SyncReadStream& s, | |
416 | boost::asio::basic_streambuf<Allocator>& b, | |
417 | MatchCondition match_condition, boost::system::error_code& ec, | |
418 | typename enable_if<is_match_condition<MatchCondition>::value>::type*) | |
419 | { | |
420 | return read_until(s, basic_streambuf_ref<Allocator>(b), match_condition, ec); | |
7c673cae FG |
421 | } |
422 | ||
b32b8144 FG |
423 | #endif // !defined(BOOST_ASIO_NO_IOSTREAM) |
424 | #endif // !defined(BOOST_ASIO_NO_EXTENSIONS) | |
425 | ||
7c673cae FG |
426 | namespace detail |
427 | { | |
b32b8144 FG |
428 | template <typename AsyncReadStream, |
429 | typename DynamicBuffer, typename ReadHandler> | |
7c673cae FG |
430 | class read_until_delim_op |
431 | { | |
432 | public: | |
b32b8144 | 433 | template <typename BufferSequence> |
7c673cae | 434 | read_until_delim_op(AsyncReadStream& stream, |
b32b8144 | 435 | BOOST_ASIO_MOVE_ARG(BufferSequence) buffers, |
7c673cae FG |
436 | char delim, ReadHandler& handler) |
437 | : stream_(stream), | |
b32b8144 | 438 | buffers_(BOOST_ASIO_MOVE_CAST(BufferSequence)(buffers)), |
7c673cae FG |
439 | delim_(delim), |
440 | start_(0), | |
441 | search_position_(0), | |
442 | handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)) | |
443 | { | |
444 | } | |
445 | ||
446 | #if defined(BOOST_ASIO_HAS_MOVE) | |
447 | read_until_delim_op(const read_until_delim_op& other) | |
448 | : stream_(other.stream_), | |
b32b8144 | 449 | buffers_(other.buffers_), |
7c673cae FG |
450 | delim_(other.delim_), |
451 | start_(other.start_), | |
452 | search_position_(other.search_position_), | |
453 | handler_(other.handler_) | |
454 | { | |
455 | } | |
456 | ||
457 | read_until_delim_op(read_until_delim_op&& other) | |
458 | : stream_(other.stream_), | |
b32b8144 | 459 | buffers_(BOOST_ASIO_MOVE_CAST(DynamicBuffer)(other.buffers_)), |
7c673cae FG |
460 | delim_(other.delim_), |
461 | start_(other.start_), | |
462 | search_position_(other.search_position_), | |
463 | handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(other.handler_)) | |
464 | { | |
465 | } | |
466 | #endif // defined(BOOST_ASIO_HAS_MOVE) | |
467 | ||
468 | void operator()(const boost::system::error_code& ec, | |
469 | std::size_t bytes_transferred, int start = 0) | |
470 | { | |
471 | const std::size_t not_found = (std::numeric_limits<std::size_t>::max)(); | |
472 | std::size_t bytes_to_read; | |
473 | switch (start_ = start) | |
474 | { | |
475 | case 1: | |
476 | for (;;) | |
477 | { | |
478 | { | |
479 | // Determine the range of the data to be searched. | |
b32b8144 FG |
480 | typedef typename DynamicBuffer::const_buffers_type |
481 | buffers_type; | |
482 | typedef buffers_iterator<buffers_type> iterator; | |
483 | buffers_type data_buffers = buffers_.data(); | |
484 | iterator begin = iterator::begin(data_buffers); | |
7c673cae | 485 | iterator start_pos = begin + search_position_; |
b32b8144 | 486 | iterator end = iterator::end(data_buffers); |
7c673cae FG |
487 | |
488 | // Look for a match. | |
489 | iterator iter = std::find(start_pos, end, delim_); | |
490 | if (iter != end) | |
491 | { | |
492 | // Found a match. We're done. | |
493 | search_position_ = iter - begin + 1; | |
494 | bytes_to_read = 0; | |
495 | } | |
496 | ||
497 | // No match yet. Check if buffer is full. | |
b32b8144 | 498 | else if (buffers_.size() == buffers_.max_size()) |
7c673cae FG |
499 | { |
500 | search_position_ = not_found; | |
501 | bytes_to_read = 0; | |
502 | } | |
503 | ||
504 | // Need to read some more data. | |
505 | else | |
506 | { | |
507 | // Next search can start with the new data. | |
508 | search_position_ = end - begin; | |
b32b8144 FG |
509 | bytes_to_read = std::min<std::size_t>( |
510 | std::max<std::size_t>(512, | |
511 | buffers_.capacity() - buffers_.size()), | |
512 | std::min<std::size_t>(65536, | |
513 | buffers_.max_size() - buffers_.size())); | |
7c673cae FG |
514 | } |
515 | } | |
516 | ||
517 | // Check if we're done. | |
518 | if (!start && bytes_to_read == 0) | |
519 | break; | |
520 | ||
521 | // Start a new asynchronous read operation to obtain more data. | |
b32b8144 | 522 | stream_.async_read_some(buffers_.prepare(bytes_to_read), |
7c673cae FG |
523 | BOOST_ASIO_MOVE_CAST(read_until_delim_op)(*this)); |
524 | return; default: | |
b32b8144 | 525 | buffers_.commit(bytes_transferred); |
7c673cae FG |
526 | if (ec || bytes_transferred == 0) |
527 | break; | |
528 | } | |
529 | ||
530 | const boost::system::error_code result_ec = | |
531 | (search_position_ == not_found) | |
532 | ? error::not_found : ec; | |
533 | ||
534 | const std::size_t result_n = | |
535 | (ec || search_position_ == not_found) | |
536 | ? 0 : search_position_; | |
537 | ||
538 | handler_(result_ec, result_n); | |
539 | } | |
540 | } | |
541 | ||
542 | //private: | |
543 | AsyncReadStream& stream_; | |
b32b8144 | 544 | DynamicBuffer buffers_; |
7c673cae FG |
545 | char delim_; |
546 | int start_; | |
547 | std::size_t search_position_; | |
548 | ReadHandler handler_; | |
549 | }; | |
550 | ||
b32b8144 FG |
551 | template <typename AsyncReadStream, |
552 | typename DynamicBuffer, typename ReadHandler> | |
7c673cae FG |
553 | inline void* asio_handler_allocate(std::size_t size, |
554 | read_until_delim_op<AsyncReadStream, | |
b32b8144 | 555 | DynamicBuffer, ReadHandler>* this_handler) |
7c673cae FG |
556 | { |
557 | return boost_asio_handler_alloc_helpers::allocate( | |
558 | size, this_handler->handler_); | |
559 | } | |
560 | ||
b32b8144 FG |
561 | template <typename AsyncReadStream, |
562 | typename DynamicBuffer, typename ReadHandler> | |
7c673cae FG |
563 | inline void asio_handler_deallocate(void* pointer, std::size_t size, |
564 | read_until_delim_op<AsyncReadStream, | |
b32b8144 | 565 | DynamicBuffer, ReadHandler>* this_handler) |
7c673cae FG |
566 | { |
567 | boost_asio_handler_alloc_helpers::deallocate( | |
568 | pointer, size, this_handler->handler_); | |
569 | } | |
570 | ||
b32b8144 FG |
571 | template <typename AsyncReadStream, |
572 | typename DynamicBuffer, typename ReadHandler> | |
7c673cae FG |
573 | inline bool asio_handler_is_continuation( |
574 | read_until_delim_op<AsyncReadStream, | |
b32b8144 | 575 | DynamicBuffer, ReadHandler>* this_handler) |
7c673cae FG |
576 | { |
577 | return this_handler->start_ == 0 ? true | |
578 | : boost_asio_handler_cont_helpers::is_continuation( | |
579 | this_handler->handler_); | |
580 | } | |
581 | ||
b32b8144 FG |
582 | template <typename Function, typename AsyncReadStream, |
583 | typename DynamicBuffer, typename ReadHandler> | |
7c673cae FG |
584 | inline void asio_handler_invoke(Function& function, |
585 | read_until_delim_op<AsyncReadStream, | |
b32b8144 | 586 | DynamicBuffer, ReadHandler>* this_handler) |
7c673cae FG |
587 | { |
588 | boost_asio_handler_invoke_helpers::invoke( | |
589 | function, this_handler->handler_); | |
590 | } | |
591 | ||
b32b8144 FG |
592 | template <typename Function, typename AsyncReadStream, |
593 | typename DynamicBuffer, typename ReadHandler> | |
7c673cae FG |
594 | inline void asio_handler_invoke(const Function& function, |
595 | read_until_delim_op<AsyncReadStream, | |
b32b8144 | 596 | DynamicBuffer, ReadHandler>* this_handler) |
7c673cae FG |
597 | { |
598 | boost_asio_handler_invoke_helpers::invoke( | |
599 | function, this_handler->handler_); | |
600 | } | |
601 | } // namespace detail | |
602 | ||
b32b8144 FG |
603 | #if !defined(GENERATING_DOCUMENTATION) |
604 | ||
605 | template <typename AsyncReadStream, typename DynamicBuffer, | |
606 | typename ReadHandler, typename Allocator> | |
607 | struct associated_allocator< | |
608 | detail::read_until_delim_op<AsyncReadStream, | |
609 | DynamicBuffer, ReadHandler>, | |
610 | Allocator> | |
611 | { | |
612 | typedef typename associated_allocator<ReadHandler, Allocator>::type type; | |
613 | ||
614 | static type get( | |
615 | const detail::read_until_delim_op<AsyncReadStream, | |
616 | DynamicBuffer, ReadHandler>& h, | |
617 | const Allocator& a = Allocator()) BOOST_ASIO_NOEXCEPT | |
618 | { | |
619 | return associated_allocator<ReadHandler, Allocator>::get(h.handler_, a); | |
620 | } | |
621 | }; | |
622 | ||
623 | template <typename AsyncReadStream, typename DynamicBuffer, | |
624 | typename ReadHandler, typename Executor> | |
625 | struct associated_executor< | |
626 | detail::read_until_delim_op<AsyncReadStream, | |
627 | DynamicBuffer, ReadHandler>, | |
628 | Executor> | |
629 | { | |
630 | typedef typename associated_executor<ReadHandler, Executor>::type type; | |
631 | ||
632 | static type get( | |
633 | const detail::read_until_delim_op<AsyncReadStream, | |
634 | DynamicBuffer, ReadHandler>& h, | |
635 | const Executor& ex = Executor()) BOOST_ASIO_NOEXCEPT | |
636 | { | |
637 | return associated_executor<ReadHandler, Executor>::get(h.handler_, ex); | |
638 | } | |
639 | }; | |
640 | ||
641 | #endif // !defined(GENERATING_DOCUMENTATION) | |
642 | ||
643 | template <typename AsyncReadStream, | |
644 | typename DynamicBuffer, typename ReadHandler> | |
7c673cae FG |
645 | BOOST_ASIO_INITFN_RESULT_TYPE(ReadHandler, |
646 | void (boost::system::error_code, std::size_t)) | |
647 | async_read_until(AsyncReadStream& s, | |
b32b8144 FG |
648 | BOOST_ASIO_MOVE_ARG(DynamicBuffer) buffers, |
649 | char delim, BOOST_ASIO_MOVE_ARG(ReadHandler) handler) | |
7c673cae FG |
650 | { |
651 | // If you get an error on the following line it means that your handler does | |
652 | // not meet the documented type requirements for a ReadHandler. | |
653 | BOOST_ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; | |
654 | ||
b32b8144 FG |
655 | async_completion<ReadHandler, |
656 | void (boost::system::error_code, std::size_t)> init(handler); | |
7c673cae FG |
657 | |
658 | detail::read_until_delim_op<AsyncReadStream, | |
b32b8144 FG |
659 | typename decay<DynamicBuffer>::type, |
660 | BOOST_ASIO_HANDLER_TYPE(ReadHandler, | |
661 | void (boost::system::error_code, std::size_t))>( | |
662 | s, BOOST_ASIO_MOVE_CAST(DynamicBuffer)(buffers), | |
663 | delim, init.completion_handler)(boost::system::error_code(), 0, 1); | |
7c673cae FG |
664 | |
665 | return init.result.get(); | |
666 | } | |
667 | ||
668 | namespace detail | |
669 | { | |
b32b8144 FG |
670 | template <typename AsyncReadStream, |
671 | typename DynamicBuffer, typename ReadHandler> | |
7c673cae FG |
672 | class read_until_delim_string_op |
673 | { | |
674 | public: | |
b32b8144 | 675 | template <typename BufferSequence> |
7c673cae | 676 | read_until_delim_string_op(AsyncReadStream& stream, |
b32b8144 | 677 | BOOST_ASIO_MOVE_ARG(BufferSequence) buffers, |
7c673cae FG |
678 | const std::string& delim, ReadHandler& handler) |
679 | : stream_(stream), | |
b32b8144 | 680 | buffers_(BOOST_ASIO_MOVE_CAST(BufferSequence)(buffers)), |
7c673cae FG |
681 | delim_(delim), |
682 | start_(0), | |
683 | search_position_(0), | |
684 | handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)) | |
685 | { | |
686 | } | |
687 | ||
688 | #if defined(BOOST_ASIO_HAS_MOVE) | |
689 | read_until_delim_string_op(const read_until_delim_string_op& other) | |
690 | : stream_(other.stream_), | |
b32b8144 | 691 | buffers_(other.buffers_), |
7c673cae FG |
692 | delim_(other.delim_), |
693 | start_(other.start_), | |
694 | search_position_(other.search_position_), | |
695 | handler_(other.handler_) | |
696 | { | |
697 | } | |
698 | ||
699 | read_until_delim_string_op(read_until_delim_string_op&& other) | |
700 | : stream_(other.stream_), | |
b32b8144 | 701 | buffers_(BOOST_ASIO_MOVE_CAST(DynamicBuffer)(other.buffers_)), |
7c673cae FG |
702 | delim_(BOOST_ASIO_MOVE_CAST(std::string)(other.delim_)), |
703 | start_(other.start_), | |
704 | search_position_(other.search_position_), | |
705 | handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(other.handler_)) | |
706 | { | |
707 | } | |
708 | #endif // defined(BOOST_ASIO_HAS_MOVE) | |
709 | ||
710 | void operator()(const boost::system::error_code& ec, | |
711 | std::size_t bytes_transferred, int start = 0) | |
712 | { | |
713 | const std::size_t not_found = (std::numeric_limits<std::size_t>::max)(); | |
714 | std::size_t bytes_to_read; | |
715 | switch (start_ = start) | |
716 | { | |
717 | case 1: | |
718 | for (;;) | |
719 | { | |
720 | { | |
721 | // Determine the range of the data to be searched. | |
b32b8144 FG |
722 | typedef typename DynamicBuffer::const_buffers_type |
723 | buffers_type; | |
724 | typedef buffers_iterator<buffers_type> iterator; | |
725 | buffers_type data_buffers = buffers_.data(); | |
726 | iterator begin = iterator::begin(data_buffers); | |
7c673cae | 727 | iterator start_pos = begin + search_position_; |
b32b8144 | 728 | iterator end = iterator::end(data_buffers); |
7c673cae FG |
729 | |
730 | // Look for a match. | |
731 | std::pair<iterator, bool> result = detail::partial_search( | |
732 | start_pos, end, delim_.begin(), delim_.end()); | |
733 | if (result.first != end && result.second) | |
734 | { | |
735 | // Full match. We're done. | |
736 | search_position_ = result.first - begin + delim_.length(); | |
737 | bytes_to_read = 0; | |
738 | } | |
739 | ||
740 | // No match yet. Check if buffer is full. | |
b32b8144 | 741 | else if (buffers_.size() == buffers_.max_size()) |
7c673cae FG |
742 | { |
743 | search_position_ = not_found; | |
744 | bytes_to_read = 0; | |
745 | } | |
746 | ||
747 | // Need to read some more data. | |
748 | else | |
749 | { | |
750 | if (result.first != end) | |
751 | { | |
752 | // Partial match. Next search needs to start from beginning of | |
753 | // match. | |
754 | search_position_ = result.first - begin; | |
755 | } | |
756 | else | |
757 | { | |
758 | // Next search can start with the new data. | |
759 | search_position_ = end - begin; | |
760 | } | |
761 | ||
b32b8144 FG |
762 | bytes_to_read = std::min<std::size_t>( |
763 | std::max<std::size_t>(512, | |
764 | buffers_.capacity() - buffers_.size()), | |
765 | std::min<std::size_t>(65536, | |
766 | buffers_.max_size() - buffers_.size())); | |
7c673cae FG |
767 | } |
768 | } | |
769 | ||
770 | // Check if we're done. | |
771 | if (!start && bytes_to_read == 0) | |
772 | break; | |
773 | ||
774 | // Start a new asynchronous read operation to obtain more data. | |
b32b8144 | 775 | stream_.async_read_some(buffers_.prepare(bytes_to_read), |
7c673cae FG |
776 | BOOST_ASIO_MOVE_CAST(read_until_delim_string_op)(*this)); |
777 | return; default: | |
b32b8144 | 778 | buffers_.commit(bytes_transferred); |
7c673cae FG |
779 | if (ec || bytes_transferred == 0) |
780 | break; | |
781 | } | |
782 | ||
783 | const boost::system::error_code result_ec = | |
784 | (search_position_ == not_found) | |
785 | ? error::not_found : ec; | |
786 | ||
787 | const std::size_t result_n = | |
788 | (ec || search_position_ == not_found) | |
789 | ? 0 : search_position_; | |
790 | ||
791 | handler_(result_ec, result_n); | |
792 | } | |
793 | } | |
794 | ||
795 | //private: | |
796 | AsyncReadStream& stream_; | |
b32b8144 | 797 | DynamicBuffer buffers_; |
7c673cae FG |
798 | std::string delim_; |
799 | int start_; | |
800 | std::size_t search_position_; | |
801 | ReadHandler handler_; | |
802 | }; | |
803 | ||
b32b8144 FG |
804 | template <typename AsyncReadStream, |
805 | typename DynamicBuffer, typename ReadHandler> | |
7c673cae FG |
806 | inline void* asio_handler_allocate(std::size_t size, |
807 | read_until_delim_string_op<AsyncReadStream, | |
b32b8144 | 808 | DynamicBuffer, ReadHandler>* this_handler) |
7c673cae FG |
809 | { |
810 | return boost_asio_handler_alloc_helpers::allocate( | |
811 | size, this_handler->handler_); | |
812 | } | |
813 | ||
b32b8144 FG |
814 | template <typename AsyncReadStream, |
815 | typename DynamicBuffer, typename ReadHandler> | |
7c673cae FG |
816 | inline void asio_handler_deallocate(void* pointer, std::size_t size, |
817 | read_until_delim_string_op<AsyncReadStream, | |
b32b8144 | 818 | DynamicBuffer, ReadHandler>* this_handler) |
7c673cae FG |
819 | { |
820 | boost_asio_handler_alloc_helpers::deallocate( | |
821 | pointer, size, this_handler->handler_); | |
822 | } | |
823 | ||
b32b8144 FG |
824 | template <typename AsyncReadStream, |
825 | typename DynamicBuffer, typename ReadHandler> | |
7c673cae FG |
826 | inline bool asio_handler_is_continuation( |
827 | read_until_delim_string_op<AsyncReadStream, | |
b32b8144 | 828 | DynamicBuffer, ReadHandler>* this_handler) |
7c673cae FG |
829 | { |
830 | return this_handler->start_ == 0 ? true | |
831 | : boost_asio_handler_cont_helpers::is_continuation( | |
832 | this_handler->handler_); | |
833 | } | |
834 | ||
835 | template <typename Function, typename AsyncReadStream, | |
b32b8144 | 836 | typename DynamicBuffer, typename ReadHandler> |
7c673cae FG |
837 | inline void asio_handler_invoke(Function& function, |
838 | read_until_delim_string_op<AsyncReadStream, | |
b32b8144 | 839 | DynamicBuffer, ReadHandler>* this_handler) |
7c673cae FG |
840 | { |
841 | boost_asio_handler_invoke_helpers::invoke( | |
842 | function, this_handler->handler_); | |
843 | } | |
844 | ||
845 | template <typename Function, typename AsyncReadStream, | |
b32b8144 | 846 | typename DynamicBuffer, typename ReadHandler> |
7c673cae FG |
847 | inline void asio_handler_invoke(const Function& function, |
848 | read_until_delim_string_op<AsyncReadStream, | |
b32b8144 | 849 | DynamicBuffer, ReadHandler>* this_handler) |
7c673cae FG |
850 | { |
851 | boost_asio_handler_invoke_helpers::invoke( | |
852 | function, this_handler->handler_); | |
853 | } | |
854 | } // namespace detail | |
855 | ||
b32b8144 FG |
856 | #if !defined(GENERATING_DOCUMENTATION) |
857 | ||
858 | template <typename AsyncReadStream, typename DynamicBuffer, | |
859 | typename ReadHandler, typename Allocator> | |
860 | struct associated_allocator< | |
861 | detail::read_until_delim_string_op<AsyncReadStream, | |
862 | DynamicBuffer, ReadHandler>, | |
863 | Allocator> | |
864 | { | |
865 | typedef typename associated_allocator<ReadHandler, Allocator>::type type; | |
866 | ||
867 | static type get( | |
868 | const detail::read_until_delim_string_op<AsyncReadStream, | |
869 | DynamicBuffer, ReadHandler>& h, | |
870 | const Allocator& a = Allocator()) BOOST_ASIO_NOEXCEPT | |
871 | { | |
872 | return associated_allocator<ReadHandler, Allocator>::get(h.handler_, a); | |
873 | } | |
874 | }; | |
875 | ||
876 | template <typename AsyncReadStream, typename DynamicBuffer, | |
877 | typename ReadHandler, typename Executor> | |
878 | struct associated_executor< | |
879 | detail::read_until_delim_string_op<AsyncReadStream, | |
880 | DynamicBuffer, ReadHandler>, | |
881 | Executor> | |
882 | { | |
883 | typedef typename associated_executor<ReadHandler, Executor>::type type; | |
884 | ||
885 | static type get( | |
886 | const detail::read_until_delim_string_op<AsyncReadStream, | |
887 | DynamicBuffer, ReadHandler>& h, | |
888 | const Executor& ex = Executor()) BOOST_ASIO_NOEXCEPT | |
889 | { | |
890 | return associated_executor<ReadHandler, Executor>::get(h.handler_, ex); | |
891 | } | |
892 | }; | |
893 | ||
894 | #endif // !defined(GENERATING_DOCUMENTATION) | |
895 | ||
896 | template <typename AsyncReadStream, | |
897 | typename DynamicBuffer, typename ReadHandler> | |
7c673cae FG |
898 | BOOST_ASIO_INITFN_RESULT_TYPE(ReadHandler, |
899 | void (boost::system::error_code, std::size_t)) | |
900 | async_read_until(AsyncReadStream& s, | |
b32b8144 FG |
901 | BOOST_ASIO_MOVE_ARG(DynamicBuffer) buffers, |
902 | BOOST_ASIO_STRING_VIEW_PARAM delim, | |
7c673cae FG |
903 | BOOST_ASIO_MOVE_ARG(ReadHandler) handler) |
904 | { | |
905 | // If you get an error on the following line it means that your handler does | |
906 | // not meet the documented type requirements for a ReadHandler. | |
907 | BOOST_ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; | |
908 | ||
b32b8144 FG |
909 | async_completion<ReadHandler, |
910 | void (boost::system::error_code, std::size_t)> init(handler); | |
7c673cae FG |
911 | |
912 | detail::read_until_delim_string_op<AsyncReadStream, | |
b32b8144 FG |
913 | typename decay<DynamicBuffer>::type, |
914 | BOOST_ASIO_HANDLER_TYPE(ReadHandler, | |
915 | void (boost::system::error_code, std::size_t))>( | |
916 | s, BOOST_ASIO_MOVE_CAST(DynamicBuffer)(buffers), | |
917 | static_cast<std::string>(delim), | |
918 | init.completion_handler)(boost::system::error_code(), 0, 1); | |
7c673cae FG |
919 | |
920 | return init.result.get(); | |
921 | } | |
922 | ||
b32b8144 | 923 | #if !defined(BOOST_ASIO_NO_EXTENSIONS) |
7c673cae FG |
924 | #if defined(BOOST_ASIO_HAS_BOOST_REGEX) |
925 | ||
926 | namespace detail | |
927 | { | |
b32b8144 | 928 | template <typename AsyncReadStream, typename DynamicBuffer, |
7c673cae FG |
929 | typename RegEx, typename ReadHandler> |
930 | class read_until_expr_op | |
931 | { | |
932 | public: | |
b32b8144 | 933 | template <typename BufferSequence> |
7c673cae | 934 | read_until_expr_op(AsyncReadStream& stream, |
b32b8144 | 935 | BOOST_ASIO_MOVE_ARG(BufferSequence) buffers, |
7c673cae FG |
936 | const boost::regex& expr, ReadHandler& handler) |
937 | : stream_(stream), | |
b32b8144 | 938 | buffers_(BOOST_ASIO_MOVE_CAST(BufferSequence)(buffers)), |
7c673cae FG |
939 | expr_(expr), |
940 | start_(0), | |
941 | search_position_(0), | |
942 | handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)) | |
943 | { | |
944 | } | |
945 | ||
946 | #if defined(BOOST_ASIO_HAS_MOVE) | |
947 | read_until_expr_op(const read_until_expr_op& other) | |
948 | : stream_(other.stream_), | |
b32b8144 | 949 | buffers_(other.buffers_), |
7c673cae FG |
950 | expr_(other.expr_), |
951 | start_(other.start_), | |
952 | search_position_(other.search_position_), | |
953 | handler_(other.handler_) | |
954 | { | |
955 | } | |
956 | ||
957 | read_until_expr_op(read_until_expr_op&& other) | |
958 | : stream_(other.stream_), | |
b32b8144 | 959 | buffers_(BOOST_ASIO_MOVE_CAST(DynamicBuffer)(other.buffers_)), |
7c673cae FG |
960 | expr_(other.expr_), |
961 | start_(other.start_), | |
962 | search_position_(other.search_position_), | |
963 | handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(other.handler_)) | |
964 | { | |
965 | } | |
966 | #endif // defined(BOOST_ASIO_HAS_MOVE) | |
967 | ||
968 | void operator()(const boost::system::error_code& ec, | |
969 | std::size_t bytes_transferred, int start = 0) | |
970 | { | |
971 | const std::size_t not_found = (std::numeric_limits<std::size_t>::max)(); | |
972 | std::size_t bytes_to_read; | |
973 | switch (start_ = start) | |
974 | { | |
975 | case 1: | |
976 | for (;;) | |
977 | { | |
978 | { | |
979 | // Determine the range of the data to be searched. | |
b32b8144 FG |
980 | typedef typename DynamicBuffer::const_buffers_type |
981 | buffers_type; | |
982 | typedef buffers_iterator<buffers_type> iterator; | |
983 | buffers_type data_buffers = buffers_.data(); | |
984 | iterator begin = iterator::begin(data_buffers); | |
7c673cae | 985 | iterator start_pos = begin + search_position_; |
b32b8144 | 986 | iterator end = iterator::end(data_buffers); |
7c673cae FG |
987 | |
988 | // Look for a match. | |
989 | boost::match_results<iterator, | |
990 | typename std::vector<boost::sub_match<iterator> >::allocator_type> | |
991 | match_results; | |
992 | bool match = regex_search(start_pos, end, match_results, expr_, | |
993 | boost::match_default | boost::match_partial); | |
994 | if (match && match_results[0].matched) | |
995 | { | |
996 | // Full match. We're done. | |
997 | search_position_ = match_results[0].second - begin; | |
998 | bytes_to_read = 0; | |
999 | } | |
1000 | ||
1001 | // No match yet. Check if buffer is full. | |
b32b8144 | 1002 | else if (buffers_.size() == buffers_.max_size()) |
7c673cae FG |
1003 | { |
1004 | search_position_ = not_found; | |
1005 | bytes_to_read = 0; | |
1006 | } | |
1007 | ||
1008 | // Need to read some more data. | |
1009 | else | |
1010 | { | |
1011 | if (match) | |
1012 | { | |
1013 | // Partial match. Next search needs to start from beginning of | |
1014 | // match. | |
1015 | search_position_ = match_results[0].first - begin; | |
1016 | } | |
1017 | else | |
1018 | { | |
1019 | // Next search can start with the new data. | |
1020 | search_position_ = end - begin; | |
1021 | } | |
1022 | ||
b32b8144 FG |
1023 | bytes_to_read = std::min<std::size_t>( |
1024 | std::max<std::size_t>(512, | |
1025 | buffers_.capacity() - buffers_.size()), | |
1026 | std::min<std::size_t>(65536, | |
1027 | buffers_.max_size() - buffers_.size())); | |
7c673cae FG |
1028 | } |
1029 | } | |
1030 | ||
1031 | // Check if we're done. | |
1032 | if (!start && bytes_to_read == 0) | |
1033 | break; | |
1034 | ||
1035 | // Start a new asynchronous read operation to obtain more data. | |
b32b8144 | 1036 | stream_.async_read_some(buffers_.prepare(bytes_to_read), |
7c673cae FG |
1037 | BOOST_ASIO_MOVE_CAST(read_until_expr_op)(*this)); |
1038 | return; default: | |
b32b8144 | 1039 | buffers_.commit(bytes_transferred); |
7c673cae FG |
1040 | if (ec || bytes_transferred == 0) |
1041 | break; | |
1042 | } | |
1043 | ||
1044 | const boost::system::error_code result_ec = | |
1045 | (search_position_ == not_found) | |
1046 | ? error::not_found : ec; | |
1047 | ||
1048 | const std::size_t result_n = | |
1049 | (ec || search_position_ == not_found) | |
1050 | ? 0 : search_position_; | |
1051 | ||
1052 | handler_(result_ec, result_n); | |
1053 | } | |
1054 | } | |
1055 | ||
1056 | //private: | |
1057 | AsyncReadStream& stream_; | |
b32b8144 | 1058 | DynamicBuffer buffers_; |
7c673cae FG |
1059 | RegEx expr_; |
1060 | int start_; | |
1061 | std::size_t search_position_; | |
1062 | ReadHandler handler_; | |
1063 | }; | |
1064 | ||
b32b8144 | 1065 | template <typename AsyncReadStream, typename DynamicBuffer, |
7c673cae FG |
1066 | typename RegEx, typename ReadHandler> |
1067 | inline void* asio_handler_allocate(std::size_t size, | |
1068 | read_until_expr_op<AsyncReadStream, | |
b32b8144 | 1069 | DynamicBuffer, RegEx, ReadHandler>* this_handler) |
7c673cae FG |
1070 | { |
1071 | return boost_asio_handler_alloc_helpers::allocate( | |
1072 | size, this_handler->handler_); | |
1073 | } | |
1074 | ||
b32b8144 | 1075 | template <typename AsyncReadStream, typename DynamicBuffer, |
7c673cae FG |
1076 | typename RegEx, typename ReadHandler> |
1077 | inline void asio_handler_deallocate(void* pointer, std::size_t size, | |
1078 | read_until_expr_op<AsyncReadStream, | |
b32b8144 | 1079 | DynamicBuffer, RegEx, ReadHandler>* this_handler) |
7c673cae FG |
1080 | { |
1081 | boost_asio_handler_alloc_helpers::deallocate( | |
1082 | pointer, size, this_handler->handler_); | |
1083 | } | |
1084 | ||
b32b8144 | 1085 | template <typename AsyncReadStream, typename DynamicBuffer, |
7c673cae FG |
1086 | typename RegEx, typename ReadHandler> |
1087 | inline bool asio_handler_is_continuation( | |
1088 | read_until_expr_op<AsyncReadStream, | |
b32b8144 | 1089 | DynamicBuffer, RegEx, ReadHandler>* this_handler) |
7c673cae FG |
1090 | { |
1091 | return this_handler->start_ == 0 ? true | |
1092 | : boost_asio_handler_cont_helpers::is_continuation( | |
1093 | this_handler->handler_); | |
1094 | } | |
1095 | ||
b32b8144 FG |
1096 | template <typename Function, typename AsyncReadStream, |
1097 | typename DynamicBuffer, typename RegEx, typename ReadHandler> | |
7c673cae FG |
1098 | inline void asio_handler_invoke(Function& function, |
1099 | read_until_expr_op<AsyncReadStream, | |
b32b8144 | 1100 | DynamicBuffer, RegEx, ReadHandler>* this_handler) |
7c673cae FG |
1101 | { |
1102 | boost_asio_handler_invoke_helpers::invoke( | |
1103 | function, this_handler->handler_); | |
1104 | } | |
1105 | ||
b32b8144 FG |
1106 | template <typename Function, typename AsyncReadStream, |
1107 | typename DynamicBuffer, typename RegEx, typename ReadHandler> | |
7c673cae FG |
1108 | inline void asio_handler_invoke(const Function& function, |
1109 | read_until_expr_op<AsyncReadStream, | |
b32b8144 | 1110 | DynamicBuffer, RegEx, ReadHandler>* this_handler) |
7c673cae FG |
1111 | { |
1112 | boost_asio_handler_invoke_helpers::invoke( | |
1113 | function, this_handler->handler_); | |
1114 | } | |
1115 | } // namespace detail | |
1116 | ||
b32b8144 FG |
1117 | #if !defined(GENERATING_DOCUMENTATION) |
1118 | ||
1119 | template <typename AsyncReadStream, typename DynamicBuffer, | |
1120 | typename RegEx, typename ReadHandler, typename Allocator> | |
1121 | struct associated_allocator< | |
1122 | detail::read_until_expr_op<AsyncReadStream, | |
1123 | DynamicBuffer, RegEx, ReadHandler>, | |
1124 | Allocator> | |
1125 | { | |
1126 | typedef typename associated_allocator<ReadHandler, Allocator>::type type; | |
1127 | ||
1128 | static type get( | |
1129 | const detail::read_until_expr_op<AsyncReadStream, | |
1130 | DynamicBuffer, RegEx, ReadHandler>& h, | |
1131 | const Allocator& a = Allocator()) BOOST_ASIO_NOEXCEPT | |
1132 | { | |
1133 | return associated_allocator<ReadHandler, Allocator>::get(h.handler_, a); | |
1134 | } | |
1135 | }; | |
1136 | ||
1137 | template <typename AsyncReadStream, typename DynamicBuffer, | |
1138 | typename RegEx, typename ReadHandler, typename Executor> | |
1139 | struct associated_executor< | |
1140 | detail::read_until_expr_op<AsyncReadStream, | |
1141 | DynamicBuffer, RegEx, ReadHandler>, | |
1142 | Executor> | |
1143 | { | |
1144 | typedef typename associated_executor<ReadHandler, Executor>::type type; | |
1145 | ||
1146 | static type get( | |
1147 | const detail::read_until_expr_op<AsyncReadStream, | |
1148 | DynamicBuffer, RegEx, ReadHandler>& h, | |
1149 | const Executor& ex = Executor()) BOOST_ASIO_NOEXCEPT | |
1150 | { | |
1151 | return associated_executor<ReadHandler, Executor>::get(h.handler_, ex); | |
1152 | } | |
1153 | }; | |
1154 | ||
1155 | #endif // !defined(GENERATING_DOCUMENTATION) | |
1156 | ||
1157 | template <typename AsyncReadStream, | |
1158 | typename DynamicBuffer, typename ReadHandler> | |
7c673cae FG |
1159 | BOOST_ASIO_INITFN_RESULT_TYPE(ReadHandler, |
1160 | void (boost::system::error_code, std::size_t)) | |
1161 | async_read_until(AsyncReadStream& s, | |
b32b8144 FG |
1162 | BOOST_ASIO_MOVE_ARG(DynamicBuffer) buffers, |
1163 | const boost::regex& expr, | |
7c673cae FG |
1164 | BOOST_ASIO_MOVE_ARG(ReadHandler) handler) |
1165 | { | |
1166 | // If you get an error on the following line it means that your handler does | |
1167 | // not meet the documented type requirements for a ReadHandler. | |
1168 | BOOST_ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; | |
1169 | ||
b32b8144 FG |
1170 | async_completion<ReadHandler, |
1171 | void (boost::system::error_code, std::size_t)> init(handler); | |
7c673cae | 1172 | |
b32b8144 FG |
1173 | detail::read_until_expr_op<AsyncReadStream, |
1174 | typename decay<DynamicBuffer>::type, | |
1175 | boost::regex, BOOST_ASIO_HANDLER_TYPE(ReadHandler, | |
1176 | void (boost::system::error_code, std::size_t))>( | |
1177 | s, BOOST_ASIO_MOVE_CAST(DynamicBuffer)(buffers), | |
1178 | expr, init.completion_handler)(boost::system::error_code(), 0, 1); | |
7c673cae FG |
1179 | |
1180 | return init.result.get(); | |
1181 | } | |
1182 | ||
1183 | #endif // defined(BOOST_ASIO_HAS_BOOST_REGEX) | |
1184 | ||
1185 | namespace detail | |
1186 | { | |
b32b8144 | 1187 | template <typename AsyncReadStream, typename DynamicBuffer, |
7c673cae FG |
1188 | typename MatchCondition, typename ReadHandler> |
1189 | class read_until_match_op | |
1190 | { | |
1191 | public: | |
b32b8144 | 1192 | template <typename BufferSequence> |
7c673cae | 1193 | read_until_match_op(AsyncReadStream& stream, |
b32b8144 | 1194 | BOOST_ASIO_MOVE_ARG(BufferSequence) buffers, |
7c673cae FG |
1195 | MatchCondition match_condition, ReadHandler& handler) |
1196 | : stream_(stream), | |
b32b8144 | 1197 | buffers_(BOOST_ASIO_MOVE_CAST(BufferSequence)(buffers)), |
7c673cae FG |
1198 | match_condition_(match_condition), |
1199 | start_(0), | |
1200 | search_position_(0), | |
1201 | handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)) | |
1202 | { | |
1203 | } | |
1204 | ||
1205 | #if defined(BOOST_ASIO_HAS_MOVE) | |
1206 | read_until_match_op(const read_until_match_op& other) | |
1207 | : stream_(other.stream_), | |
b32b8144 | 1208 | buffers_(other.buffers_), |
7c673cae FG |
1209 | match_condition_(other.match_condition_), |
1210 | start_(other.start_), | |
1211 | search_position_(other.search_position_), | |
1212 | handler_(other.handler_) | |
1213 | { | |
1214 | } | |
1215 | ||
1216 | read_until_match_op(read_until_match_op&& other) | |
1217 | : stream_(other.stream_), | |
b32b8144 | 1218 | buffers_(BOOST_ASIO_MOVE_CAST(DynamicBuffer)(other.buffers_)), |
7c673cae FG |
1219 | match_condition_(other.match_condition_), |
1220 | start_(other.start_), | |
1221 | search_position_(other.search_position_), | |
1222 | handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(other.handler_)) | |
1223 | { | |
1224 | } | |
1225 | #endif // defined(BOOST_ASIO_HAS_MOVE) | |
1226 | ||
1227 | void operator()(const boost::system::error_code& ec, | |
1228 | std::size_t bytes_transferred, int start = 0) | |
1229 | { | |
1230 | const std::size_t not_found = (std::numeric_limits<std::size_t>::max)(); | |
1231 | std::size_t bytes_to_read; | |
1232 | switch (start_ = start) | |
1233 | { | |
1234 | case 1: | |
1235 | for (;;) | |
1236 | { | |
1237 | { | |
1238 | // Determine the range of the data to be searched. | |
b32b8144 FG |
1239 | typedef typename DynamicBuffer::const_buffers_type |
1240 | buffers_type; | |
1241 | typedef buffers_iterator<buffers_type> iterator; | |
1242 | buffers_type data_buffers = buffers_.data(); | |
1243 | iterator begin = iterator::begin(data_buffers); | |
7c673cae | 1244 | iterator start_pos = begin + search_position_; |
b32b8144 | 1245 | iterator end = iterator::end(data_buffers); |
7c673cae FG |
1246 | |
1247 | // Look for a match. | |
1248 | std::pair<iterator, bool> result = match_condition_(start_pos, end); | |
1249 | if (result.second) | |
1250 | { | |
1251 | // Full match. We're done. | |
1252 | search_position_ = result.first - begin; | |
1253 | bytes_to_read = 0; | |
1254 | } | |
1255 | ||
1256 | // No match yet. Check if buffer is full. | |
b32b8144 | 1257 | else if (buffers_.size() == buffers_.max_size()) |
7c673cae FG |
1258 | { |
1259 | search_position_ = not_found; | |
1260 | bytes_to_read = 0; | |
1261 | } | |
1262 | ||
1263 | // Need to read some more data. | |
1264 | else | |
1265 | { | |
1266 | if (result.first != end) | |
1267 | { | |
1268 | // Partial match. Next search needs to start from beginning of | |
1269 | // match. | |
1270 | search_position_ = result.first - begin; | |
1271 | } | |
1272 | else | |
1273 | { | |
1274 | // Next search can start with the new data. | |
1275 | search_position_ = end - begin; | |
1276 | } | |
1277 | ||
b32b8144 FG |
1278 | bytes_to_read = std::min<std::size_t>( |
1279 | std::max<std::size_t>(512, | |
1280 | buffers_.capacity() - buffers_.size()), | |
1281 | std::min<std::size_t>(65536, | |
1282 | buffers_.max_size() - buffers_.size())); | |
7c673cae FG |
1283 | } |
1284 | } | |
1285 | ||
1286 | // Check if we're done. | |
1287 | if (!start && bytes_to_read == 0) | |
1288 | break; | |
1289 | ||
1290 | // Start a new asynchronous read operation to obtain more data. | |
b32b8144 | 1291 | stream_.async_read_some(buffers_.prepare(bytes_to_read), |
7c673cae FG |
1292 | BOOST_ASIO_MOVE_CAST(read_until_match_op)(*this)); |
1293 | return; default: | |
b32b8144 | 1294 | buffers_.commit(bytes_transferred); |
7c673cae FG |
1295 | if (ec || bytes_transferred == 0) |
1296 | break; | |
1297 | } | |
1298 | ||
1299 | const boost::system::error_code result_ec = | |
1300 | (search_position_ == not_found) | |
1301 | ? error::not_found : ec; | |
1302 | ||
1303 | const std::size_t result_n = | |
1304 | (ec || search_position_ == not_found) | |
1305 | ? 0 : search_position_; | |
1306 | ||
1307 | handler_(result_ec, result_n); | |
1308 | } | |
1309 | } | |
1310 | ||
1311 | //private: | |
1312 | AsyncReadStream& stream_; | |
b32b8144 | 1313 | DynamicBuffer buffers_; |
7c673cae FG |
1314 | MatchCondition match_condition_; |
1315 | int start_; | |
1316 | std::size_t search_position_; | |
1317 | ReadHandler handler_; | |
1318 | }; | |
1319 | ||
b32b8144 | 1320 | template <typename AsyncReadStream, typename DynamicBuffer, |
7c673cae FG |
1321 | typename MatchCondition, typename ReadHandler> |
1322 | inline void* asio_handler_allocate(std::size_t size, | |
b32b8144 FG |
1323 | read_until_match_op<AsyncReadStream, DynamicBuffer, |
1324 | MatchCondition, ReadHandler>* this_handler) | |
7c673cae FG |
1325 | { |
1326 | return boost_asio_handler_alloc_helpers::allocate( | |
1327 | size, this_handler->handler_); | |
1328 | } | |
1329 | ||
b32b8144 | 1330 | template <typename AsyncReadStream, typename DynamicBuffer, |
7c673cae FG |
1331 | typename MatchCondition, typename ReadHandler> |
1332 | inline void asio_handler_deallocate(void* pointer, std::size_t size, | |
b32b8144 FG |
1333 | read_until_match_op<AsyncReadStream, DynamicBuffer, |
1334 | MatchCondition, ReadHandler>* this_handler) | |
7c673cae FG |
1335 | { |
1336 | boost_asio_handler_alloc_helpers::deallocate( | |
1337 | pointer, size, this_handler->handler_); | |
1338 | } | |
1339 | ||
b32b8144 | 1340 | template <typename AsyncReadStream, typename DynamicBuffer, |
7c673cae FG |
1341 | typename MatchCondition, typename ReadHandler> |
1342 | inline bool asio_handler_is_continuation( | |
b32b8144 FG |
1343 | read_until_match_op<AsyncReadStream, DynamicBuffer, |
1344 | MatchCondition, ReadHandler>* this_handler) | |
7c673cae FG |
1345 | { |
1346 | return this_handler->start_ == 0 ? true | |
1347 | : boost_asio_handler_cont_helpers::is_continuation( | |
1348 | this_handler->handler_); | |
1349 | } | |
1350 | ||
b32b8144 FG |
1351 | template <typename Function, typename AsyncReadStream, |
1352 | typename DynamicBuffer, typename MatchCondition, | |
1353 | typename ReadHandler> | |
7c673cae | 1354 | inline void asio_handler_invoke(Function& function, |
b32b8144 FG |
1355 | read_until_match_op<AsyncReadStream, DynamicBuffer, |
1356 | MatchCondition, ReadHandler>* this_handler) | |
7c673cae FG |
1357 | { |
1358 | boost_asio_handler_invoke_helpers::invoke( | |
1359 | function, this_handler->handler_); | |
1360 | } | |
1361 | ||
b32b8144 FG |
1362 | template <typename Function, typename AsyncReadStream, |
1363 | typename DynamicBuffer, typename MatchCondition, | |
1364 | typename ReadHandler> | |
7c673cae | 1365 | inline void asio_handler_invoke(const Function& function, |
b32b8144 FG |
1366 | read_until_match_op<AsyncReadStream, DynamicBuffer, |
1367 | MatchCondition, ReadHandler>* this_handler) | |
7c673cae FG |
1368 | { |
1369 | boost_asio_handler_invoke_helpers::invoke( | |
1370 | function, this_handler->handler_); | |
1371 | } | |
1372 | } // namespace detail | |
1373 | ||
b32b8144 FG |
1374 | #if !defined(GENERATING_DOCUMENTATION) |
1375 | ||
1376 | template <typename AsyncReadStream, typename DynamicBuffer, | |
1377 | typename MatchCondition, typename ReadHandler, typename Allocator> | |
1378 | struct associated_allocator< | |
1379 | detail::read_until_match_op<AsyncReadStream, | |
1380 | DynamicBuffer, MatchCondition, ReadHandler>, | |
1381 | Allocator> | |
1382 | { | |
1383 | typedef typename associated_allocator<ReadHandler, Allocator>::type type; | |
1384 | ||
1385 | static type get( | |
1386 | const detail::read_until_match_op<AsyncReadStream, | |
1387 | DynamicBuffer, MatchCondition, ReadHandler>& h, | |
1388 | const Allocator& a = Allocator()) BOOST_ASIO_NOEXCEPT | |
1389 | { | |
1390 | return associated_allocator<ReadHandler, Allocator>::get(h.handler_, a); | |
1391 | } | |
1392 | }; | |
1393 | ||
1394 | template <typename AsyncReadStream, typename DynamicBuffer, | |
1395 | typename MatchCondition, typename ReadHandler, typename Executor> | |
1396 | struct associated_executor< | |
1397 | detail::read_until_match_op<AsyncReadStream, | |
1398 | DynamicBuffer, MatchCondition, ReadHandler>, | |
1399 | Executor> | |
1400 | { | |
1401 | typedef typename associated_executor<ReadHandler, Executor>::type type; | |
1402 | ||
1403 | static type get( | |
1404 | const detail::read_until_match_op<AsyncReadStream, | |
1405 | DynamicBuffer, MatchCondition, ReadHandler>& h, | |
1406 | const Executor& ex = Executor()) BOOST_ASIO_NOEXCEPT | |
1407 | { | |
1408 | return associated_executor<ReadHandler, Executor>::get(h.handler_, ex); | |
1409 | } | |
1410 | }; | |
1411 | ||
1412 | #endif // !defined(GENERATING_DOCUMENTATION) | |
1413 | ||
1414 | template <typename AsyncReadStream, typename DynamicBuffer, | |
7c673cae FG |
1415 | typename MatchCondition, typename ReadHandler> |
1416 | BOOST_ASIO_INITFN_RESULT_TYPE(ReadHandler, | |
1417 | void (boost::system::error_code, std::size_t)) | |
1418 | async_read_until(AsyncReadStream& s, | |
b32b8144 | 1419 | BOOST_ASIO_MOVE_ARG(DynamicBuffer) buffers, |
7c673cae FG |
1420 | MatchCondition match_condition, BOOST_ASIO_MOVE_ARG(ReadHandler) handler, |
1421 | typename enable_if<is_match_condition<MatchCondition>::value>::type*) | |
1422 | { | |
1423 | // If you get an error on the following line it means that your handler does | |
1424 | // not meet the documented type requirements for a ReadHandler. | |
1425 | BOOST_ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; | |
1426 | ||
b32b8144 FG |
1427 | async_completion<ReadHandler, |
1428 | void (boost::system::error_code, std::size_t)> init(handler); | |
7c673cae | 1429 | |
b32b8144 FG |
1430 | detail::read_until_match_op<AsyncReadStream, |
1431 | typename decay<DynamicBuffer>::type, | |
1432 | MatchCondition, BOOST_ASIO_HANDLER_TYPE(ReadHandler, | |
1433 | void (boost::system::error_code, std::size_t))>( | |
1434 | s, BOOST_ASIO_MOVE_CAST(DynamicBuffer)(buffers), | |
1435 | match_condition, init.completion_handler)( | |
1436 | boost::system::error_code(), 0, 1); | |
7c673cae FG |
1437 | |
1438 | return init.result.get(); | |
1439 | } | |
1440 | ||
b32b8144 FG |
1441 | #if !defined(BOOST_ASIO_NO_IOSTREAM) |
1442 | ||
1443 | template <typename AsyncReadStream, typename Allocator, typename ReadHandler> | |
1444 | inline BOOST_ASIO_INITFN_RESULT_TYPE(ReadHandler, | |
1445 | void (boost::system::error_code, std::size_t)) | |
1446 | async_read_until(AsyncReadStream& s, | |
1447 | boost::asio::basic_streambuf<Allocator>& b, | |
1448 | char delim, BOOST_ASIO_MOVE_ARG(ReadHandler) handler) | |
1449 | { | |
1450 | return async_read_until(s, basic_streambuf_ref<Allocator>(b), | |
1451 | delim, BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)); | |
1452 | } | |
1453 | ||
1454 | template <typename AsyncReadStream, typename Allocator, typename ReadHandler> | |
1455 | inline BOOST_ASIO_INITFN_RESULT_TYPE(ReadHandler, | |
1456 | void (boost::system::error_code, std::size_t)) | |
1457 | async_read_until(AsyncReadStream& s, | |
1458 | boost::asio::basic_streambuf<Allocator>& b, | |
1459 | BOOST_ASIO_STRING_VIEW_PARAM delim, | |
1460 | BOOST_ASIO_MOVE_ARG(ReadHandler) handler) | |
1461 | { | |
1462 | return async_read_until(s, basic_streambuf_ref<Allocator>(b), | |
1463 | delim, BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)); | |
1464 | } | |
1465 | ||
1466 | #if defined(BOOST_ASIO_HAS_BOOST_REGEX) | |
1467 | ||
1468 | template <typename AsyncReadStream, typename Allocator, typename ReadHandler> | |
1469 | inline BOOST_ASIO_INITFN_RESULT_TYPE(ReadHandler, | |
1470 | void (boost::system::error_code, std::size_t)) | |
1471 | async_read_until(AsyncReadStream& s, | |
1472 | boost::asio::basic_streambuf<Allocator>& b, const boost::regex& expr, | |
1473 | BOOST_ASIO_MOVE_ARG(ReadHandler) handler) | |
1474 | { | |
1475 | return async_read_until(s, basic_streambuf_ref<Allocator>(b), | |
1476 | expr, BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)); | |
1477 | } | |
1478 | ||
1479 | #endif // defined(BOOST_ASIO_HAS_BOOST_REGEX) | |
1480 | ||
1481 | template <typename AsyncReadStream, typename Allocator, | |
1482 | typename MatchCondition, typename ReadHandler> | |
1483 | inline BOOST_ASIO_INITFN_RESULT_TYPE(ReadHandler, | |
1484 | void (boost::system::error_code, std::size_t)) | |
1485 | async_read_until(AsyncReadStream& s, | |
1486 | boost::asio::basic_streambuf<Allocator>& b, | |
1487 | MatchCondition match_condition, BOOST_ASIO_MOVE_ARG(ReadHandler) handler, | |
1488 | typename enable_if<is_match_condition<MatchCondition>::value>::type*) | |
1489 | { | |
1490 | return async_read_until(s, basic_streambuf_ref<Allocator>(b), | |
1491 | match_condition, BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)); | |
1492 | } | |
1493 | ||
1494 | #endif // !defined(BOOST_ASIO_NO_IOSTREAM) | |
1495 | #endif // !defined(BOOST_ASIO_NO_EXTENSIONS) | |
1496 | ||
7c673cae FG |
1497 | } // namespace asio |
1498 | } // namespace boost | |
1499 | ||
1500 | #include <boost/asio/detail/pop_options.hpp> | |
1501 | ||
1502 | #endif // BOOST_ASIO_IMPL_READ_UNTIL_HPP |