// // impl/read_until.hpp // ~~~~~~~~~~~~~~~~~~~ // // Copyright (c) 2003-2020 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) // #ifndef ASIO_IMPL_READ_UNTIL_HPP #define ASIO_IMPL_READ_UNTIL_HPP #if defined(_MSC_VER) && (_MSC_VER >= 1200) # pragma once #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) #include #include #include #include #include "asio/associated_allocator.hpp" #include "asio/associated_executor.hpp" #include "asio/buffer.hpp" #include "asio/buffers_iterator.hpp" #include "asio/detail/bind_handler.hpp" #include "asio/detail/handler_alloc_helpers.hpp" #include "asio/detail/handler_cont_helpers.hpp" #include "asio/detail/handler_invoke_helpers.hpp" #include "asio/detail/handler_tracking.hpp" #include "asio/detail/handler_type_requirements.hpp" #include "asio/detail/limits.hpp" #include "asio/detail/non_const_lvalue.hpp" #include "asio/detail/throw_error.hpp" #include "asio/detail/push_options.hpp" namespace asio { namespace detail { // Algorithm that finds a subsequence of equal values in a sequence. Returns // (iterator,true) if a full match was found, in which case the iterator // points to the beginning of the match. Returns (iterator,false) if a // partial match was found at the end of the first sequence, in which case // the iterator points to the beginning of the partial match. Returns // (last1,false) if no full or partial match was found. template std::pair partial_search( Iterator1 first1, Iterator1 last1, Iterator2 first2, Iterator2 last2) { for (Iterator1 iter1 = first1; iter1 != last1; ++iter1) { Iterator1 test_iter1 = iter1; Iterator2 test_iter2 = first2; for (;; ++test_iter1, ++test_iter2) { if (test_iter2 == last2) return std::make_pair(iter1, true); if (test_iter1 == last1) { if (test_iter2 != first2) return std::make_pair(iter1, false); else break; } if (*test_iter1 != *test_iter2) break; } } return std::make_pair(last1, false); } } // namespace detail #if !defined(ASIO_NO_DYNAMIC_BUFFER_V1) template inline std::size_t read_until(SyncReadStream& s, ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, char delim, typename enable_if< is_dynamic_buffer_v1::type>::value && !is_dynamic_buffer_v2::type>::value >::type*) { asio::error_code ec; std::size_t bytes_transferred = read_until(s, ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), delim, ec); asio::detail::throw_error(ec, "read_until"); return bytes_transferred; } template std::size_t read_until(SyncReadStream& s, ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, char delim, asio::error_code& ec, typename enable_if< is_dynamic_buffer_v1::type>::value && !is_dynamic_buffer_v2::type>::value >::type*) { typename decay::type b( ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers)); std::size_t search_position = 0; for (;;) { // Determine the range of the data to be searched. typedef typename DynamicBuffer_v1::const_buffers_type buffers_type; typedef buffers_iterator iterator; buffers_type data_buffers = b.data(); iterator begin = iterator::begin(data_buffers); iterator start_pos = begin + search_position; iterator end = iterator::end(data_buffers); // Look for a match. iterator iter = std::find(start_pos, end, delim); if (iter != end) { // Found a match. We're done. ec = asio::error_code(); return iter - begin + 1; } else { // No match. Next search can start with the new data. search_position = end - begin; } // Check if buffer is full. if (b.size() == b.max_size()) { ec = error::not_found; return 0; } // Need more data. std::size_t bytes_to_read = std::min( std::max(512, b.capacity() - b.size()), std::min(65536, b.max_size() - b.size())); b.commit(s.read_some(b.prepare(bytes_to_read), ec)); if (ec) return 0; } } template inline std::size_t read_until(SyncReadStream& s, ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, ASIO_STRING_VIEW_PARAM delim, typename enable_if< is_dynamic_buffer_v1::type>::value && !is_dynamic_buffer_v2::type>::value >::type*) { asio::error_code ec; std::size_t bytes_transferred = read_until(s, ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), delim, ec); asio::detail::throw_error(ec, "read_until"); return bytes_transferred; } template std::size_t read_until(SyncReadStream& s, ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, ASIO_STRING_VIEW_PARAM delim, asio::error_code& ec, typename enable_if< is_dynamic_buffer_v1::type>::value && !is_dynamic_buffer_v2::type>::value >::type*) { typename decay::type b( ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers)); std::size_t search_position = 0; for (;;) { // Determine the range of the data to be searched. typedef typename DynamicBuffer_v1::const_buffers_type buffers_type; typedef buffers_iterator iterator; buffers_type data_buffers = b.data(); iterator begin = iterator::begin(data_buffers); iterator start_pos = begin + search_position; iterator end = iterator::end(data_buffers); // Look for a match. std::pair result = detail::partial_search( start_pos, end, delim.begin(), delim.end()); if (result.first != end) { if (result.second) { // Full match. We're done. ec = asio::error_code(); return result.first - begin + delim.length(); } else { // Partial match. Next search needs to start from beginning of match. search_position = result.first - begin; } } else { // No match. Next search can start with the new data. search_position = end - begin; } // Check if buffer is full. if (b.size() == b.max_size()) { ec = error::not_found; return 0; } // Need more data. std::size_t bytes_to_read = std::min( std::max(512, b.capacity() - b.size()), std::min(65536, b.max_size() - b.size())); b.commit(s.read_some(b.prepare(bytes_to_read), ec)); if (ec) return 0; } } #if !defined(ASIO_NO_EXTENSIONS) #if defined(ASIO_HAS_BOOST_REGEX) template inline std::size_t read_until(SyncReadStream& s, ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, const boost::regex& expr, typename enable_if< is_dynamic_buffer_v1::type>::value && !is_dynamic_buffer_v2::type>::value >::type*) { asio::error_code ec; std::size_t bytes_transferred = read_until(s, ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), expr, ec); asio::detail::throw_error(ec, "read_until"); return bytes_transferred; } template std::size_t read_until(SyncReadStream& s, ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, const boost::regex& expr, asio::error_code& ec, typename enable_if< is_dynamic_buffer_v1::type>::value && !is_dynamic_buffer_v2::type>::value >::type*) { typename decay::type b( ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers)); std::size_t search_position = 0; for (;;) { // Determine the range of the data to be searched. typedef typename DynamicBuffer_v1::const_buffers_type buffers_type; typedef buffers_iterator iterator; buffers_type data_buffers = b.data(); iterator begin = iterator::begin(data_buffers); iterator start_pos = begin + search_position; iterator end = iterator::end(data_buffers); // Look for a match. boost::match_results >::allocator_type> match_results; if (regex_search(start_pos, end, match_results, expr, boost::match_default | boost::match_partial)) { if (match_results[0].matched) { // Full match. We're done. ec = asio::error_code(); return match_results[0].second - begin; } else { // Partial match. Next search needs to start from beginning of match. search_position = match_results[0].first - begin; } } else { // No match. Next search can start with the new data. search_position = end - begin; } // Check if buffer is full. if (b.size() == b.max_size()) { ec = error::not_found; return 0; } // Need more data. std::size_t bytes_to_read = std::min( std::max(512, b.capacity() - b.size()), std::min(65536, b.max_size() - b.size())); b.commit(s.read_some(b.prepare(bytes_to_read), ec)); if (ec) return 0; } } #endif // defined(ASIO_HAS_BOOST_REGEX) template inline std::size_t read_until(SyncReadStream& s, ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, MatchCondition match_condition, typename enable_if< is_match_condition::value && is_dynamic_buffer_v1::type>::value && !is_dynamic_buffer_v2::type>::value >::type*) { asio::error_code ec; std::size_t bytes_transferred = read_until(s, ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), match_condition, ec); asio::detail::throw_error(ec, "read_until"); return bytes_transferred; } template std::size_t read_until(SyncReadStream& s, ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, MatchCondition match_condition, asio::error_code& ec, typename enable_if< is_match_condition::value && is_dynamic_buffer_v1::type>::value && !is_dynamic_buffer_v2::type>::value >::type*) { typename decay::type b( ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers)); std::size_t search_position = 0; for (;;) { // Determine the range of the data to be searched. typedef typename DynamicBuffer_v1::const_buffers_type buffers_type; typedef buffers_iterator iterator; buffers_type data_buffers = b.data(); iterator begin = iterator::begin(data_buffers); iterator start_pos = begin + search_position; iterator end = iterator::end(data_buffers); // Look for a match. std::pair result = match_condition(start_pos, end); if (result.second) { // Full match. We're done. ec = asio::error_code(); return result.first - begin; } else if (result.first != end) { // Partial match. Next search needs to start from beginning of match. search_position = result.first - begin; } else { // No match. Next search can start with the new data. search_position = end - begin; } // Check if buffer is full. if (b.size() == b.max_size()) { ec = error::not_found; return 0; } // Need more data. std::size_t bytes_to_read = std::min( std::max(512, b.capacity() - b.size()), std::min(65536, b.max_size() - b.size())); b.commit(s.read_some(b.prepare(bytes_to_read), ec)); if (ec) return 0; } } #if !defined(ASIO_NO_IOSTREAM) template inline std::size_t read_until(SyncReadStream& s, asio::basic_streambuf& b, char delim) { return read_until(s, basic_streambuf_ref(b), delim); } template inline std::size_t read_until(SyncReadStream& s, asio::basic_streambuf& b, char delim, asio::error_code& ec) { return read_until(s, basic_streambuf_ref(b), delim, ec); } template inline std::size_t read_until(SyncReadStream& s, asio::basic_streambuf& b, ASIO_STRING_VIEW_PARAM delim) { return read_until(s, basic_streambuf_ref(b), delim); } template inline std::size_t read_until(SyncReadStream& s, asio::basic_streambuf& b, ASIO_STRING_VIEW_PARAM delim, asio::error_code& ec) { return read_until(s, basic_streambuf_ref(b), delim, ec); } #if defined(ASIO_HAS_BOOST_REGEX) template inline std::size_t read_until(SyncReadStream& s, asio::basic_streambuf& b, const boost::regex& expr) { return read_until(s, basic_streambuf_ref(b), expr); } template inline std::size_t read_until(SyncReadStream& s, asio::basic_streambuf& b, const boost::regex& expr, asio::error_code& ec) { return read_until(s, basic_streambuf_ref(b), expr, ec); } #endif // defined(ASIO_HAS_BOOST_REGEX) template inline std::size_t read_until(SyncReadStream& s, asio::basic_streambuf& b, MatchCondition match_condition, typename enable_if::value>::type*) { return read_until(s, basic_streambuf_ref(b), match_condition); } template inline std::size_t read_until(SyncReadStream& s, asio::basic_streambuf& b, MatchCondition match_condition, asio::error_code& ec, typename enable_if::value>::type*) { return read_until(s, basic_streambuf_ref(b), match_condition, ec); } #endif // !defined(ASIO_NO_IOSTREAM) #endif // !defined(ASIO_NO_EXTENSIONS) #endif // !defined(ASIO_NO_DYNAMIC_BUFFER_V1) template inline std::size_t read_until(SyncReadStream& s, DynamicBuffer_v2 buffers, char delim, typename enable_if< is_dynamic_buffer_v2::value >::type*) { asio::error_code ec; std::size_t bytes_transferred = read_until(s, ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), delim, ec); asio::detail::throw_error(ec, "read_until"); return bytes_transferred; } template std::size_t read_until(SyncReadStream& s, DynamicBuffer_v2 buffers, char delim, asio::error_code& ec, typename enable_if< is_dynamic_buffer_v2::value >::type*) { DynamicBuffer_v2& b = buffers; std::size_t search_position = 0; for (;;) { // Determine the range of the data to be searched. typedef typename DynamicBuffer_v2::const_buffers_type buffers_type; typedef buffers_iterator iterator; buffers_type data_buffers = const_cast(b).data(0, b.size()); iterator begin = iterator::begin(data_buffers); iterator start_pos = begin + search_position; iterator end = iterator::end(data_buffers); // Look for a match. iterator iter = std::find(start_pos, end, delim); if (iter != end) { // Found a match. We're done. ec = asio::error_code(); return iter - begin + 1; } else { // No match. Next search can start with the new data. search_position = end - begin; } // Check if buffer is full. if (b.size() == b.max_size()) { ec = error::not_found; return 0; } // Need more data. std::size_t bytes_to_read = std::min( std::max(512, b.capacity() - b.size()), std::min(65536, b.max_size() - b.size())); std::size_t pos = b.size(); b.grow(bytes_to_read); std::size_t bytes_transferred = s.read_some(b.data(pos, bytes_to_read), ec); b.shrink(bytes_to_read - bytes_transferred); if (ec) return 0; } } template inline std::size_t read_until(SyncReadStream& s, DynamicBuffer_v2 buffers, ASIO_STRING_VIEW_PARAM delim, typename enable_if< is_dynamic_buffer_v2::value >::type*) { asio::error_code ec; std::size_t bytes_transferred = read_until(s, ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), delim, ec); asio::detail::throw_error(ec, "read_until"); return bytes_transferred; } template std::size_t read_until(SyncReadStream& s, DynamicBuffer_v2 buffers, ASIO_STRING_VIEW_PARAM delim, asio::error_code& ec, typename enable_if< is_dynamic_buffer_v2::value >::type*) { DynamicBuffer_v2& b = buffers; std::size_t search_position = 0; for (;;) { // Determine the range of the data to be searched. typedef typename DynamicBuffer_v2::const_buffers_type buffers_type; typedef buffers_iterator iterator; buffers_type data_buffers = const_cast(b).data(0, b.size()); iterator begin = iterator::begin(data_buffers); iterator start_pos = begin + search_position; iterator end = iterator::end(data_buffers); // Look for a match. std::pair result = detail::partial_search( start_pos, end, delim.begin(), delim.end()); if (result.first != end) { if (result.second) { // Full match. We're done. ec = asio::error_code(); return result.first - begin + delim.length(); } else { // Partial match. Next search needs to start from beginning of match. search_position = result.first - begin; } } else { // No match. Next search can start with the new data. search_position = end - begin; } // Check if buffer is full. if (b.size() == b.max_size()) { ec = error::not_found; return 0; } // Need more data. std::size_t bytes_to_read = std::min( std::max(512, b.capacity() - b.size()), std::min(65536, b.max_size() - b.size())); std::size_t pos = b.size(); b.grow(bytes_to_read); std::size_t bytes_transferred = s.read_some(b.data(pos, bytes_to_read), ec); b.shrink(bytes_to_read - bytes_transferred); if (ec) return 0; } } #if !defined(ASIO_NO_EXTENSIONS) #if defined(ASIO_HAS_BOOST_REGEX) template inline std::size_t read_until(SyncReadStream& s, DynamicBuffer_v2 buffers, const boost::regex& expr, typename enable_if< is_dynamic_buffer_v2::value >::type*) { asio::error_code ec; std::size_t bytes_transferred = read_until(s, ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), expr, ec); asio::detail::throw_error(ec, "read_until"); return bytes_transferred; } template std::size_t read_until(SyncReadStream& s, DynamicBuffer_v2 buffers, const boost::regex& expr, asio::error_code& ec, typename enable_if< is_dynamic_buffer_v2::value >::type*) { DynamicBuffer_v2& b = buffers; std::size_t search_position = 0; for (;;) { // Determine the range of the data to be searched. typedef typename DynamicBuffer_v2::const_buffers_type buffers_type; typedef buffers_iterator iterator; buffers_type data_buffers = const_cast(b).data(0, b.size()); iterator begin = iterator::begin(data_buffers); iterator start_pos = begin + search_position; iterator end = iterator::end(data_buffers); // Look for a match. boost::match_results >::allocator_type> match_results; if (regex_search(start_pos, end, match_results, expr, boost::match_default | boost::match_partial)) { if (match_results[0].matched) { // Full match. We're done. ec = asio::error_code(); return match_results[0].second - begin; } else { // Partial match. Next search needs to start from beginning of match. search_position = match_results[0].first - begin; } } else { // No match. Next search can start with the new data. search_position = end - begin; } // Check if buffer is full. if (b.size() == b.max_size()) { ec = error::not_found; return 0; } // Need more data. std::size_t bytes_to_read = std::min( std::max(512, b.capacity() - b.size()), std::min(65536, b.max_size() - b.size())); std::size_t pos = b.size(); b.grow(bytes_to_read); std::size_t bytes_transferred = s.read_some(b.data(pos, bytes_to_read), ec); b.shrink(bytes_to_read - bytes_transferred); if (ec) return 0; } } #endif // defined(ASIO_HAS_BOOST_REGEX) template inline std::size_t read_until(SyncReadStream& s, DynamicBuffer_v2 buffers, MatchCondition match_condition, typename enable_if< is_match_condition::value && is_dynamic_buffer_v2::value >::type*) { asio::error_code ec; std::size_t bytes_transferred = read_until(s, ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), match_condition, ec); asio::detail::throw_error(ec, "read_until"); return bytes_transferred; } template std::size_t read_until(SyncReadStream& s, DynamicBuffer_v2 buffers, MatchCondition match_condition, asio::error_code& ec, typename enable_if< is_match_condition::value && is_dynamic_buffer_v2::value >::type*) { DynamicBuffer_v2& b = buffers; std::size_t search_position = 0; for (;;) { // Determine the range of the data to be searched. typedef typename DynamicBuffer_v2::const_buffers_type buffers_type; typedef buffers_iterator iterator; buffers_type data_buffers = const_cast(b).data(0, b.size()); iterator begin = iterator::begin(data_buffers); iterator start_pos = begin + search_position; iterator end = iterator::end(data_buffers); // Look for a match. std::pair result = match_condition(start_pos, end); if (result.second) { // Full match. We're done. ec = asio::error_code(); return result.first - begin; } else if (result.first != end) { // Partial match. Next search needs to start from beginning of match. search_position = result.first - begin; } else { // No match. Next search can start with the new data. search_position = end - begin; } // Check if buffer is full. if (b.size() == b.max_size()) { ec = error::not_found; return 0; } // Need more data. std::size_t bytes_to_read = std::min( std::max(512, b.capacity() - b.size()), std::min(65536, b.max_size() - b.size())); std::size_t pos = b.size(); b.grow(bytes_to_read); std::size_t bytes_transferred = s.read_some(b.data(pos, bytes_to_read), ec); b.shrink(bytes_to_read - bytes_transferred); if (ec) return 0; } } #endif // !defined(ASIO_NO_EXTENSIONS) #if !defined(ASIO_NO_DYNAMIC_BUFFER_V1) namespace detail { template class read_until_delim_op_v1 { public: template read_until_delim_op_v1(AsyncReadStream& stream, ASIO_MOVE_ARG(BufferSequence) buffers, char delim, ReadHandler& handler) : stream_(stream), buffers_(ASIO_MOVE_CAST(BufferSequence)(buffers)), delim_(delim), start_(0), search_position_(0), handler_(ASIO_MOVE_CAST(ReadHandler)(handler)) { } #if defined(ASIO_HAS_MOVE) read_until_delim_op_v1(const read_until_delim_op_v1& other) : stream_(other.stream_), buffers_(other.buffers_), delim_(other.delim_), start_(other.start_), search_position_(other.search_position_), handler_(other.handler_) { } read_until_delim_op_v1(read_until_delim_op_v1&& other) : stream_(other.stream_), buffers_(ASIO_MOVE_CAST(DynamicBuffer_v1)(other.buffers_)), delim_(other.delim_), start_(other.start_), search_position_(other.search_position_), handler_(ASIO_MOVE_CAST(ReadHandler)(other.handler_)) { } #endif // defined(ASIO_HAS_MOVE) void operator()(const asio::error_code& ec, std::size_t bytes_transferred, int start = 0) { const std::size_t not_found = (std::numeric_limits::max)(); std::size_t bytes_to_read; switch (start_ = start) { case 1: for (;;) { { // Determine the range of the data to be searched. typedef typename DynamicBuffer_v1::const_buffers_type buffers_type; typedef buffers_iterator iterator; buffers_type data_buffers = buffers_.data(); iterator begin = iterator::begin(data_buffers); iterator start_pos = begin + search_position_; iterator end = iterator::end(data_buffers); // Look for a match. iterator iter = std::find(start_pos, end, delim_); if (iter != end) { // Found a match. We're done. search_position_ = iter - begin + 1; bytes_to_read = 0; } // No match yet. Check if buffer is full. else if (buffers_.size() == buffers_.max_size()) { search_position_ = not_found; bytes_to_read = 0; } // Need to read some more data. else { // Next search can start with the new data. search_position_ = end - begin; bytes_to_read = std::min( std::max(512, buffers_.capacity() - buffers_.size()), std::min(65536, buffers_.max_size() - buffers_.size())); } } // Check if we're done. if (!start && bytes_to_read == 0) break; // Start a new asynchronous read operation to obtain more data. { ASIO_HANDLER_LOCATION(( __FILE__, __LINE__, "async_read_until")); stream_.async_read_some(buffers_.prepare(bytes_to_read), ASIO_MOVE_CAST(read_until_delim_op_v1)(*this)); } return; default: buffers_.commit(bytes_transferred); if (ec || bytes_transferred == 0) break; } const asio::error_code result_ec = (search_position_ == not_found) ? error::not_found : ec; const std::size_t result_n = (ec || search_position_ == not_found) ? 0 : search_position_; handler_(result_ec, result_n); } } //private: AsyncReadStream& stream_; DynamicBuffer_v1 buffers_; char delim_; int start_; std::size_t search_position_; ReadHandler handler_; }; template inline asio_handler_allocate_is_deprecated asio_handler_allocate(std::size_t size, read_until_delim_op_v1* this_handler) { #if defined(ASIO_NO_DEPRECATED) asio_handler_alloc_helpers::allocate(size, this_handler->handler_); return asio_handler_allocate_is_no_longer_used(); #else // defined(ASIO_NO_DEPRECATED) return asio_handler_alloc_helpers::allocate( size, this_handler->handler_); #endif // defined(ASIO_NO_DEPRECATED) } template inline asio_handler_deallocate_is_deprecated asio_handler_deallocate(void* pointer, std::size_t size, read_until_delim_op_v1* this_handler) { asio_handler_alloc_helpers::deallocate( pointer, size, this_handler->handler_); #if defined(ASIO_NO_DEPRECATED) return asio_handler_deallocate_is_no_longer_used(); #endif // defined(ASIO_NO_DEPRECATED) } template inline bool asio_handler_is_continuation( read_until_delim_op_v1* this_handler) { return this_handler->start_ == 0 ? true : asio_handler_cont_helpers::is_continuation( this_handler->handler_); } template inline asio_handler_invoke_is_deprecated asio_handler_invoke(Function& function, read_until_delim_op_v1* this_handler) { asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(ASIO_NO_DEPRECATED) } template inline asio_handler_invoke_is_deprecated asio_handler_invoke(const Function& function, read_until_delim_op_v1* this_handler) { asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(ASIO_NO_DEPRECATED) } template class initiate_async_read_until_delim_v1 { public: typedef typename AsyncReadStream::executor_type executor_type; explicit initiate_async_read_until_delim_v1(AsyncReadStream& stream) : stream_(stream) { } executor_type get_executor() const ASIO_NOEXCEPT { return stream_.get_executor(); } template void operator()(ASIO_MOVE_ARG(ReadHandler) handler, ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, char delim) const { // If you get an error on the following line it means that your handler // does not meet the documented type requirements for a ReadHandler. ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; non_const_lvalue handler2(handler); read_until_delim_op_v1::type, typename decay::type>( stream_, ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), delim, handler2.value)(asio::error_code(), 0, 1); } private: AsyncReadStream& stream_; }; } // namespace detail #if !defined(GENERATING_DOCUMENTATION) template struct associated_allocator< detail::read_until_delim_op_v1, Allocator> { typedef typename associated_allocator::type type; static type get( const detail::read_until_delim_op_v1& h, const Allocator& a = Allocator()) ASIO_NOEXCEPT { return associated_allocator::get(h.handler_, a); } }; template struct associated_executor< detail::read_until_delim_op_v1, Executor> : detail::associated_executor_forwarding_base { typedef typename associated_executor::type type; static type get( const detail::read_until_delim_op_v1& h, const Executor& ex = Executor()) ASIO_NOEXCEPT { return associated_executor::get(h.handler_, ex); } }; #endif // !defined(GENERATING_DOCUMENTATION) template ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (asio::error_code, std::size_t)) async_read_until(AsyncReadStream& s, ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, char delim, ASIO_MOVE_ARG(ReadHandler) handler, typename enable_if< is_dynamic_buffer_v1::type>::value && !is_dynamic_buffer_v2::type>::value >::type*) { return async_initiate( detail::initiate_async_read_until_delim_v1(s), handler, ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), delim); } namespace detail { template class read_until_delim_string_op_v1 { public: template read_until_delim_string_op_v1(AsyncReadStream& stream, ASIO_MOVE_ARG(BufferSequence) buffers, const std::string& delim, ReadHandler& handler) : stream_(stream), buffers_(ASIO_MOVE_CAST(BufferSequence)(buffers)), delim_(delim), start_(0), search_position_(0), handler_(ASIO_MOVE_CAST(ReadHandler)(handler)) { } #if defined(ASIO_HAS_MOVE) read_until_delim_string_op_v1(const read_until_delim_string_op_v1& other) : stream_(other.stream_), buffers_(other.buffers_), delim_(other.delim_), start_(other.start_), search_position_(other.search_position_), handler_(other.handler_) { } read_until_delim_string_op_v1(read_until_delim_string_op_v1&& other) : stream_(other.stream_), buffers_(ASIO_MOVE_CAST(DynamicBuffer_v1)(other.buffers_)), delim_(ASIO_MOVE_CAST(std::string)(other.delim_)), start_(other.start_), search_position_(other.search_position_), handler_(ASIO_MOVE_CAST(ReadHandler)(other.handler_)) { } #endif // defined(ASIO_HAS_MOVE) void operator()(const asio::error_code& ec, std::size_t bytes_transferred, int start = 0) { const std::size_t not_found = (std::numeric_limits::max)(); std::size_t bytes_to_read; switch (start_ = start) { case 1: for (;;) { { // Determine the range of the data to be searched. typedef typename DynamicBuffer_v1::const_buffers_type buffers_type; typedef buffers_iterator iterator; buffers_type data_buffers = buffers_.data(); iterator begin = iterator::begin(data_buffers); iterator start_pos = begin + search_position_; iterator end = iterator::end(data_buffers); // Look for a match. std::pair result = detail::partial_search( start_pos, end, delim_.begin(), delim_.end()); if (result.first != end && result.second) { // Full match. We're done. search_position_ = result.first - begin + delim_.length(); bytes_to_read = 0; } // No match yet. Check if buffer is full. else if (buffers_.size() == buffers_.max_size()) { search_position_ = not_found; bytes_to_read = 0; } // Need to read some more data. else { if (result.first != end) { // Partial match. Next search needs to start from beginning of // match. search_position_ = result.first - begin; } else { // Next search can start with the new data. search_position_ = end - begin; } bytes_to_read = std::min( std::max(512, buffers_.capacity() - buffers_.size()), std::min(65536, buffers_.max_size() - buffers_.size())); } } // Check if we're done. if (!start && bytes_to_read == 0) break; // Start a new asynchronous read operation to obtain more data. { ASIO_HANDLER_LOCATION(( __FILE__, __LINE__, "async_read_until")); stream_.async_read_some(buffers_.prepare(bytes_to_read), ASIO_MOVE_CAST(read_until_delim_string_op_v1)(*this)); } return; default: buffers_.commit(bytes_transferred); if (ec || bytes_transferred == 0) break; } const asio::error_code result_ec = (search_position_ == not_found) ? error::not_found : ec; const std::size_t result_n = (ec || search_position_ == not_found) ? 0 : search_position_; handler_(result_ec, result_n); } } //private: AsyncReadStream& stream_; DynamicBuffer_v1 buffers_; std::string delim_; int start_; std::size_t search_position_; ReadHandler handler_; }; template inline asio_handler_allocate_is_deprecated asio_handler_allocate(std::size_t size, read_until_delim_string_op_v1* this_handler) { #if defined(ASIO_NO_DEPRECATED) asio_handler_alloc_helpers::allocate(size, this_handler->handler_); return asio_handler_allocate_is_no_longer_used(); #else // defined(ASIO_NO_DEPRECATED) return asio_handler_alloc_helpers::allocate( size, this_handler->handler_); #endif // defined(ASIO_NO_DEPRECATED) } template inline asio_handler_deallocate_is_deprecated asio_handler_deallocate(void* pointer, std::size_t size, read_until_delim_string_op_v1* this_handler) { asio_handler_alloc_helpers::deallocate( pointer, size, this_handler->handler_); #if defined(ASIO_NO_DEPRECATED) return asio_handler_deallocate_is_no_longer_used(); #endif // defined(ASIO_NO_DEPRECATED) } template inline bool asio_handler_is_continuation( read_until_delim_string_op_v1* this_handler) { return this_handler->start_ == 0 ? true : asio_handler_cont_helpers::is_continuation( this_handler->handler_); } template inline asio_handler_invoke_is_deprecated asio_handler_invoke(Function& function, read_until_delim_string_op_v1* this_handler) { asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(ASIO_NO_DEPRECATED) } template inline asio_handler_invoke_is_deprecated asio_handler_invoke(const Function& function, read_until_delim_string_op_v1* this_handler) { asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(ASIO_NO_DEPRECATED) } template class initiate_async_read_until_delim_string_v1 { public: typedef typename AsyncReadStream::executor_type executor_type; explicit initiate_async_read_until_delim_string_v1(AsyncReadStream& stream) : stream_(stream) { } executor_type get_executor() const ASIO_NOEXCEPT { return stream_.get_executor(); } template void operator()(ASIO_MOVE_ARG(ReadHandler) handler, ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, const std::string& delim) const { // If you get an error on the following line it means that your handler // does not meet the documented type requirements for a ReadHandler. ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; non_const_lvalue handler2(handler); read_until_delim_string_op_v1::type, typename decay::type>( stream_, ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), delim, handler2.value)(asio::error_code(), 0, 1); } private: AsyncReadStream& stream_; }; } // namespace detail #if !defined(GENERATING_DOCUMENTATION) template struct associated_allocator< detail::read_until_delim_string_op_v1, Allocator> { typedef typename associated_allocator::type type; static type get( const detail::read_until_delim_string_op_v1& h, const Allocator& a = Allocator()) ASIO_NOEXCEPT { return associated_allocator::get(h.handler_, a); } }; template struct associated_executor< detail::read_until_delim_string_op_v1, Executor> : detail::associated_executor_forwarding_base { typedef typename associated_executor::type type; static type get( const detail::read_until_delim_string_op_v1& h, const Executor& ex = Executor()) ASIO_NOEXCEPT { return associated_executor::get(h.handler_, ex); } }; #endif // !defined(GENERATING_DOCUMENTATION) template ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (asio::error_code, std::size_t)) async_read_until(AsyncReadStream& s, ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, ASIO_STRING_VIEW_PARAM delim, ASIO_MOVE_ARG(ReadHandler) handler, typename enable_if< is_dynamic_buffer_v1::type>::value && !is_dynamic_buffer_v2::type>::value >::type*) { return async_initiate( detail::initiate_async_read_until_delim_string_v1(s), handler, ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), static_cast(delim)); } #if !defined(ASIO_NO_EXTENSIONS) #if defined(ASIO_HAS_BOOST_REGEX) namespace detail { template class read_until_expr_op_v1 { public: template read_until_expr_op_v1(AsyncReadStream& stream, ASIO_MOVE_ARG(BufferSequence) buffers, const boost::regex& expr, ReadHandler& handler) : stream_(stream), buffers_(ASIO_MOVE_CAST(BufferSequence)(buffers)), expr_(expr), start_(0), search_position_(0), handler_(ASIO_MOVE_CAST(ReadHandler)(handler)) { } #if defined(ASIO_HAS_MOVE) read_until_expr_op_v1(const read_until_expr_op_v1& other) : stream_(other.stream_), buffers_(other.buffers_), expr_(other.expr_), start_(other.start_), search_position_(other.search_position_), handler_(other.handler_) { } read_until_expr_op_v1(read_until_expr_op_v1&& other) : stream_(other.stream_), buffers_(ASIO_MOVE_CAST(DynamicBuffer_v1)(other.buffers_)), expr_(other.expr_), start_(other.start_), search_position_(other.search_position_), handler_(ASIO_MOVE_CAST(ReadHandler)(other.handler_)) { } #endif // defined(ASIO_HAS_MOVE) void operator()(const asio::error_code& ec, std::size_t bytes_transferred, int start = 0) { const std::size_t not_found = (std::numeric_limits::max)(); std::size_t bytes_to_read; switch (start_ = start) { case 1: for (;;) { { // Determine the range of the data to be searched. typedef typename DynamicBuffer_v1::const_buffers_type buffers_type; typedef buffers_iterator iterator; buffers_type data_buffers = buffers_.data(); iterator begin = iterator::begin(data_buffers); iterator start_pos = begin + search_position_; iterator end = iterator::end(data_buffers); // Look for a match. boost::match_results >::allocator_type> match_results; bool match = regex_search(start_pos, end, match_results, expr_, boost::match_default | boost::match_partial); if (match && match_results[0].matched) { // Full match. We're done. search_position_ = match_results[0].second - begin; bytes_to_read = 0; } // No match yet. Check if buffer is full. else if (buffers_.size() == buffers_.max_size()) { search_position_ = not_found; bytes_to_read = 0; } // Need to read some more data. else { if (match) { // Partial match. Next search needs to start from beginning of // match. search_position_ = match_results[0].first - begin; } else { // Next search can start with the new data. search_position_ = end - begin; } bytes_to_read = std::min( std::max(512, buffers_.capacity() - buffers_.size()), std::min(65536, buffers_.max_size() - buffers_.size())); } } // Check if we're done. if (!start && bytes_to_read == 0) break; // Start a new asynchronous read operation to obtain more data. { ASIO_HANDLER_LOCATION(( __FILE__, __LINE__, "async_read_until")); stream_.async_read_some(buffers_.prepare(bytes_to_read), ASIO_MOVE_CAST(read_until_expr_op_v1)(*this)); } return; default: buffers_.commit(bytes_transferred); if (ec || bytes_transferred == 0) break; } const asio::error_code result_ec = (search_position_ == not_found) ? error::not_found : ec; const std::size_t result_n = (ec || search_position_ == not_found) ? 0 : search_position_; handler_(result_ec, result_n); } } //private: AsyncReadStream& stream_; DynamicBuffer_v1 buffers_; RegEx expr_; int start_; std::size_t search_position_; ReadHandler handler_; }; template inline asio_handler_allocate_is_deprecated asio_handler_allocate(std::size_t size, read_until_expr_op_v1* this_handler) { #if defined(ASIO_NO_DEPRECATED) asio_handler_alloc_helpers::allocate(size, this_handler->handler_); return asio_handler_allocate_is_no_longer_used(); #else // defined(ASIO_NO_DEPRECATED) return asio_handler_alloc_helpers::allocate( size, this_handler->handler_); #endif // defined(ASIO_NO_DEPRECATED) } template inline asio_handler_deallocate_is_deprecated asio_handler_deallocate(void* pointer, std::size_t size, read_until_expr_op_v1* this_handler) { asio_handler_alloc_helpers::deallocate( pointer, size, this_handler->handler_); #if defined(ASIO_NO_DEPRECATED) return asio_handler_deallocate_is_no_longer_used(); #endif // defined(ASIO_NO_DEPRECATED) } template inline bool asio_handler_is_continuation( read_until_expr_op_v1* this_handler) { return this_handler->start_ == 0 ? true : asio_handler_cont_helpers::is_continuation( this_handler->handler_); } template inline asio_handler_invoke_is_deprecated asio_handler_invoke(Function& function, read_until_expr_op_v1* this_handler) { asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(ASIO_NO_DEPRECATED) } template inline asio_handler_invoke_is_deprecated asio_handler_invoke(const Function& function, read_until_expr_op_v1* this_handler) { asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(ASIO_NO_DEPRECATED) } template class initiate_async_read_until_expr_v1 { public: typedef typename AsyncReadStream::executor_type executor_type; explicit initiate_async_read_until_expr_v1(AsyncReadStream& stream) : stream_(stream) { } executor_type get_executor() const ASIO_NOEXCEPT { return stream_.get_executor(); } template void operator()(ASIO_MOVE_ARG(ReadHandler) handler, ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, const RegEx& expr) const { // If you get an error on the following line it means that your handler // does not meet the documented type requirements for a ReadHandler. ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; non_const_lvalue handler2(handler); read_until_expr_op_v1::type, RegEx, typename decay::type>( stream_, ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), expr, handler2.value)(asio::error_code(), 0, 1); } private: AsyncReadStream& stream_; }; } // namespace detail #if !defined(GENERATING_DOCUMENTATION) template struct associated_allocator< detail::read_until_expr_op_v1, Allocator> { typedef typename associated_allocator::type type; static type get( const detail::read_until_expr_op_v1& h, const Allocator& a = Allocator()) ASIO_NOEXCEPT { return associated_allocator::get(h.handler_, a); } }; template struct associated_executor< detail::read_until_expr_op_v1, Executor> : detail::associated_executor_forwarding_base { typedef typename associated_executor::type type; static type get( const detail::read_until_expr_op_v1& h, const Executor& ex = Executor()) ASIO_NOEXCEPT { return associated_executor::get(h.handler_, ex); } }; #endif // !defined(GENERATING_DOCUMENTATION) template ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (asio::error_code, std::size_t)) async_read_until(AsyncReadStream& s, ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, const boost::regex& expr, ASIO_MOVE_ARG(ReadHandler) handler, typename enable_if< is_dynamic_buffer_v1::type>::value && !is_dynamic_buffer_v2::type>::value >::type*) { return async_initiate( detail::initiate_async_read_until_expr_v1(s), handler, ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), expr); } #endif // defined(ASIO_HAS_BOOST_REGEX) namespace detail { template class read_until_match_op_v1 { public: template read_until_match_op_v1(AsyncReadStream& stream, ASIO_MOVE_ARG(BufferSequence) buffers, MatchCondition match_condition, ReadHandler& handler) : stream_(stream), buffers_(ASIO_MOVE_CAST(BufferSequence)(buffers)), match_condition_(match_condition), start_(0), search_position_(0), handler_(ASIO_MOVE_CAST(ReadHandler)(handler)) { } #if defined(ASIO_HAS_MOVE) read_until_match_op_v1(const read_until_match_op_v1& other) : stream_(other.stream_), buffers_(other.buffers_), match_condition_(other.match_condition_), start_(other.start_), search_position_(other.search_position_), handler_(other.handler_) { } read_until_match_op_v1(read_until_match_op_v1&& other) : stream_(other.stream_), buffers_(ASIO_MOVE_CAST(DynamicBuffer_v1)(other.buffers_)), match_condition_(other.match_condition_), start_(other.start_), search_position_(other.search_position_), handler_(ASIO_MOVE_CAST(ReadHandler)(other.handler_)) { } #endif // defined(ASIO_HAS_MOVE) void operator()(const asio::error_code& ec, std::size_t bytes_transferred, int start = 0) { const std::size_t not_found = (std::numeric_limits::max)(); std::size_t bytes_to_read; switch (start_ = start) { case 1: for (;;) { { // Determine the range of the data to be searched. typedef typename DynamicBuffer_v1::const_buffers_type buffers_type; typedef buffers_iterator iterator; buffers_type data_buffers = buffers_.data(); iterator begin = iterator::begin(data_buffers); iterator start_pos = begin + search_position_; iterator end = iterator::end(data_buffers); // Look for a match. std::pair result = match_condition_(start_pos, end); if (result.second) { // Full match. We're done. search_position_ = result.first - begin; bytes_to_read = 0; } // No match yet. Check if buffer is full. else if (buffers_.size() == buffers_.max_size()) { search_position_ = not_found; bytes_to_read = 0; } // Need to read some more data. else { if (result.first != end) { // Partial match. Next search needs to start from beginning of // match. search_position_ = result.first - begin; } else { // Next search can start with the new data. search_position_ = end - begin; } bytes_to_read = std::min( std::max(512, buffers_.capacity() - buffers_.size()), std::min(65536, buffers_.max_size() - buffers_.size())); } } // Check if we're done. if (!start && bytes_to_read == 0) break; // Start a new asynchronous read operation to obtain more data. { ASIO_HANDLER_LOCATION(( __FILE__, __LINE__, "async_read_until")); stream_.async_read_some(buffers_.prepare(bytes_to_read), ASIO_MOVE_CAST(read_until_match_op_v1)(*this)); } return; default: buffers_.commit(bytes_transferred); if (ec || bytes_transferred == 0) break; } const asio::error_code result_ec = (search_position_ == not_found) ? error::not_found : ec; const std::size_t result_n = (ec || search_position_ == not_found) ? 0 : search_position_; handler_(result_ec, result_n); } } //private: AsyncReadStream& stream_; DynamicBuffer_v1 buffers_; MatchCondition match_condition_; int start_; std::size_t search_position_; ReadHandler handler_; }; template inline asio_handler_allocate_is_deprecated asio_handler_allocate(std::size_t size, read_until_match_op_v1* this_handler) { #if defined(ASIO_NO_DEPRECATED) asio_handler_alloc_helpers::allocate(size, this_handler->handler_); return asio_handler_allocate_is_no_longer_used(); #else // defined(ASIO_NO_DEPRECATED) return asio_handler_alloc_helpers::allocate( size, this_handler->handler_); #endif // defined(ASIO_NO_DEPRECATED) } template inline asio_handler_deallocate_is_deprecated asio_handler_deallocate(void* pointer, std::size_t size, read_until_match_op_v1* this_handler) { asio_handler_alloc_helpers::deallocate( pointer, size, this_handler->handler_); #if defined(ASIO_NO_DEPRECATED) return asio_handler_deallocate_is_no_longer_used(); #endif // defined(ASIO_NO_DEPRECATED) } template inline bool asio_handler_is_continuation( read_until_match_op_v1* this_handler) { return this_handler->start_ == 0 ? true : asio_handler_cont_helpers::is_continuation( this_handler->handler_); } template inline asio_handler_invoke_is_deprecated asio_handler_invoke(Function& function, read_until_match_op_v1* this_handler) { asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(ASIO_NO_DEPRECATED) } template inline asio_handler_invoke_is_deprecated asio_handler_invoke(const Function& function, read_until_match_op_v1* this_handler) { asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(ASIO_NO_DEPRECATED) } template class initiate_async_read_until_match_v1 { public: typedef typename AsyncReadStream::executor_type executor_type; explicit initiate_async_read_until_match_v1(AsyncReadStream& stream) : stream_(stream) { } executor_type get_executor() const ASIO_NOEXCEPT { return stream_.get_executor(); } template void operator()(ASIO_MOVE_ARG(ReadHandler) handler, ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, MatchCondition match_condition) const { // If you get an error on the following line it means that your handler // does not meet the documented type requirements for a ReadHandler. ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; non_const_lvalue handler2(handler); read_until_match_op_v1::type, MatchCondition, typename decay::type>( stream_, ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), match_condition, handler2.value)(asio::error_code(), 0, 1); } private: AsyncReadStream& stream_; }; } // namespace detail #if !defined(GENERATING_DOCUMENTATION) template struct associated_allocator< detail::read_until_match_op_v1, Allocator> { typedef typename associated_allocator::type type; static type get( const detail::read_until_match_op_v1& h, const Allocator& a = Allocator()) ASIO_NOEXCEPT { return associated_allocator::get(h.handler_, a); } }; template struct associated_executor< detail::read_until_match_op_v1, Executor> : detail::associated_executor_forwarding_base { typedef typename associated_executor::type type; static type get( const detail::read_until_match_op_v1& h, const Executor& ex = Executor()) ASIO_NOEXCEPT { return associated_executor::get(h.handler_, ex); } }; #endif // !defined(GENERATING_DOCUMENTATION) template ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (asio::error_code, std::size_t)) async_read_until(AsyncReadStream& s, ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, MatchCondition match_condition, ASIO_MOVE_ARG(ReadHandler) handler, typename enable_if< is_match_condition::value && is_dynamic_buffer_v1::type>::value && !is_dynamic_buffer_v2::type>::value >::type*) { return async_initiate( detail::initiate_async_read_until_match_v1(s), handler, ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), match_condition); } #if !defined(ASIO_NO_IOSTREAM) template inline ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (asio::error_code, std::size_t)) async_read_until(AsyncReadStream& s, asio::basic_streambuf& b, char delim, ASIO_MOVE_ARG(ReadHandler) handler) { return async_read_until(s, basic_streambuf_ref(b), delim, ASIO_MOVE_CAST(ReadHandler)(handler)); } template inline ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (asio::error_code, std::size_t)) async_read_until(AsyncReadStream& s, asio::basic_streambuf& b, ASIO_STRING_VIEW_PARAM delim, ASIO_MOVE_ARG(ReadHandler) handler) { return async_read_until(s, basic_streambuf_ref(b), delim, ASIO_MOVE_CAST(ReadHandler)(handler)); } #if defined(ASIO_HAS_BOOST_REGEX) template inline ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (asio::error_code, std::size_t)) async_read_until(AsyncReadStream& s, asio::basic_streambuf& b, const boost::regex& expr, ASIO_MOVE_ARG(ReadHandler) handler) { return async_read_until(s, basic_streambuf_ref(b), expr, ASIO_MOVE_CAST(ReadHandler)(handler)); } #endif // defined(ASIO_HAS_BOOST_REGEX) template inline ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (asio::error_code, std::size_t)) async_read_until(AsyncReadStream& s, asio::basic_streambuf& b, MatchCondition match_condition, ASIO_MOVE_ARG(ReadHandler) handler, typename enable_if::value>::type*) { return async_read_until(s, basic_streambuf_ref(b), match_condition, ASIO_MOVE_CAST(ReadHandler)(handler)); } #endif // !defined(ASIO_NO_IOSTREAM) #endif // !defined(ASIO_NO_EXTENSIONS) #endif // !defined(ASIO_NO_DYNAMIC_BUFFER_V1) namespace detail { template class read_until_delim_op_v2 { public: template read_until_delim_op_v2(AsyncReadStream& stream, ASIO_MOVE_ARG(BufferSequence) buffers, char delim, ReadHandler& handler) : stream_(stream), buffers_(ASIO_MOVE_CAST(BufferSequence)(buffers)), delim_(delim), start_(0), search_position_(0), bytes_to_read_(0), handler_(ASIO_MOVE_CAST(ReadHandler)(handler)) { } #if defined(ASIO_HAS_MOVE) read_until_delim_op_v2(const read_until_delim_op_v2& other) : stream_(other.stream_), buffers_(other.buffers_), delim_(other.delim_), start_(other.start_), search_position_(other.search_position_), bytes_to_read_(other.bytes_to_read_), handler_(other.handler_) { } read_until_delim_op_v2(read_until_delim_op_v2&& other) : stream_(other.stream_), buffers_(ASIO_MOVE_CAST(DynamicBuffer_v2)(other.buffers_)), delim_(other.delim_), start_(other.start_), search_position_(other.search_position_), bytes_to_read_(other.bytes_to_read_), handler_(ASIO_MOVE_CAST(ReadHandler)(other.handler_)) { } #endif // defined(ASIO_HAS_MOVE) void operator()(const asio::error_code& ec, std::size_t bytes_transferred, int start = 0) { const std::size_t not_found = (std::numeric_limits::max)(); std::size_t pos; switch (start_ = start) { case 1: for (;;) { { // Determine the range of the data to be searched. typedef typename DynamicBuffer_v2::const_buffers_type buffers_type; typedef buffers_iterator iterator; buffers_type data_buffers = const_cast(buffers_).data( 0, buffers_.size()); iterator begin = iterator::begin(data_buffers); iterator start_pos = begin + search_position_; iterator end = iterator::end(data_buffers); // Look for a match. iterator iter = std::find(start_pos, end, delim_); if (iter != end) { // Found a match. We're done. search_position_ = iter - begin + 1; bytes_to_read_ = 0; } // No match yet. Check if buffer is full. else if (buffers_.size() == buffers_.max_size()) { search_position_ = not_found; bytes_to_read_ = 0; } // Need to read some more data. else { // Next search can start with the new data. search_position_ = end - begin; bytes_to_read_ = std::min( std::max(512, buffers_.capacity() - buffers_.size()), std::min(65536, buffers_.max_size() - buffers_.size())); } } // Check if we're done. if (!start && bytes_to_read_ == 0) break; // Start a new asynchronous read operation to obtain more data. pos = buffers_.size(); buffers_.grow(bytes_to_read_); { ASIO_HANDLER_LOCATION(( __FILE__, __LINE__, "async_read_until")); stream_.async_read_some(buffers_.data(pos, bytes_to_read_), ASIO_MOVE_CAST(read_until_delim_op_v2)(*this)); } return; default: buffers_.shrink(bytes_to_read_ - bytes_transferred); if (ec || bytes_transferred == 0) break; } const asio::error_code result_ec = (search_position_ == not_found) ? error::not_found : ec; const std::size_t result_n = (ec || search_position_ == not_found) ? 0 : search_position_; handler_(result_ec, result_n); } } //private: AsyncReadStream& stream_; DynamicBuffer_v2 buffers_; char delim_; int start_; std::size_t search_position_; std::size_t bytes_to_read_; ReadHandler handler_; }; template inline asio_handler_allocate_is_deprecated asio_handler_allocate(std::size_t size, read_until_delim_op_v2* this_handler) { #if defined(ASIO_NO_DEPRECATED) asio_handler_alloc_helpers::allocate(size, this_handler->handler_); return asio_handler_allocate_is_no_longer_used(); #else // defined(ASIO_NO_DEPRECATED) return asio_handler_alloc_helpers::allocate( size, this_handler->handler_); #endif // defined(ASIO_NO_DEPRECATED) } template inline asio_handler_deallocate_is_deprecated asio_handler_deallocate(void* pointer, std::size_t size, read_until_delim_op_v2* this_handler) { asio_handler_alloc_helpers::deallocate( pointer, size, this_handler->handler_); #if defined(ASIO_NO_DEPRECATED) return asio_handler_deallocate_is_no_longer_used(); #endif // defined(ASIO_NO_DEPRECATED) } template inline bool asio_handler_is_continuation( read_until_delim_op_v2* this_handler) { return this_handler->start_ == 0 ? true : asio_handler_cont_helpers::is_continuation( this_handler->handler_); } template inline asio_handler_invoke_is_deprecated asio_handler_invoke(Function& function, read_until_delim_op_v2* this_handler) { asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(ASIO_NO_DEPRECATED) } template inline asio_handler_invoke_is_deprecated asio_handler_invoke(const Function& function, read_until_delim_op_v2* this_handler) { asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(ASIO_NO_DEPRECATED) } template class initiate_async_read_until_delim_v2 { public: typedef typename AsyncReadStream::executor_type executor_type; explicit initiate_async_read_until_delim_v2(AsyncReadStream& stream) : stream_(stream) { } executor_type get_executor() const ASIO_NOEXCEPT { return stream_.get_executor(); } template void operator()(ASIO_MOVE_ARG(ReadHandler) handler, ASIO_MOVE_ARG(DynamicBuffer_v2) buffers, char delim) const { // If you get an error on the following line it means that your handler // does not meet the documented type requirements for a ReadHandler. ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; non_const_lvalue handler2(handler); read_until_delim_op_v2::type, typename decay::type>( stream_, ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), delim, handler2.value)(asio::error_code(), 0, 1); } private: AsyncReadStream& stream_; }; } // namespace detail #if !defined(GENERATING_DOCUMENTATION) template struct associated_allocator< detail::read_until_delim_op_v2, Allocator> { typedef typename associated_allocator::type type; static type get( const detail::read_until_delim_op_v2& h, const Allocator& a = Allocator()) ASIO_NOEXCEPT { return associated_allocator::get(h.handler_, a); } }; template struct associated_executor< detail::read_until_delim_op_v2, Executor> : detail::associated_executor_forwarding_base { typedef typename associated_executor::type type; static type get( const detail::read_until_delim_op_v2& h, const Executor& ex = Executor()) ASIO_NOEXCEPT { return associated_executor::get(h.handler_, ex); } }; #endif // !defined(GENERATING_DOCUMENTATION) template ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (asio::error_code, std::size_t)) async_read_until(AsyncReadStream& s, DynamicBuffer_v2 buffers, char delim, ASIO_MOVE_ARG(ReadHandler) handler, typename enable_if< is_dynamic_buffer_v2::value >::type*) { return async_initiate( detail::initiate_async_read_until_delim_v2(s), handler, ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), delim); } namespace detail { template class read_until_delim_string_op_v2 { public: template read_until_delim_string_op_v2(AsyncReadStream& stream, ASIO_MOVE_ARG(BufferSequence) buffers, const std::string& delim, ReadHandler& handler) : stream_(stream), buffers_(ASIO_MOVE_CAST(BufferSequence)(buffers)), delim_(delim), start_(0), search_position_(0), bytes_to_read_(0), handler_(ASIO_MOVE_CAST(ReadHandler)(handler)) { } #if defined(ASIO_HAS_MOVE) read_until_delim_string_op_v2(const read_until_delim_string_op_v2& other) : stream_(other.stream_), buffers_(other.buffers_), delim_(other.delim_), start_(other.start_), search_position_(other.search_position_), bytes_to_read_(other.bytes_to_read_), handler_(other.handler_) { } read_until_delim_string_op_v2(read_until_delim_string_op_v2&& other) : stream_(other.stream_), buffers_(ASIO_MOVE_CAST(DynamicBuffer_v2)(other.buffers_)), delim_(ASIO_MOVE_CAST(std::string)(other.delim_)), start_(other.start_), search_position_(other.search_position_), bytes_to_read_(other.bytes_to_read_), handler_(ASIO_MOVE_CAST(ReadHandler)(other.handler_)) { } #endif // defined(ASIO_HAS_MOVE) void operator()(const asio::error_code& ec, std::size_t bytes_transferred, int start = 0) { const std::size_t not_found = (std::numeric_limits::max)(); std::size_t pos; switch (start_ = start) { case 1: for (;;) { { // Determine the range of the data to be searched. typedef typename DynamicBuffer_v2::const_buffers_type buffers_type; typedef buffers_iterator iterator; buffers_type data_buffers = const_cast(buffers_).data( 0, buffers_.size()); iterator begin = iterator::begin(data_buffers); iterator start_pos = begin + search_position_; iterator end = iterator::end(data_buffers); // Look for a match. std::pair result = detail::partial_search( start_pos, end, delim_.begin(), delim_.end()); if (result.first != end && result.second) { // Full match. We're done. search_position_ = result.first - begin + delim_.length(); bytes_to_read_ = 0; } // No match yet. Check if buffer is full. else if (buffers_.size() == buffers_.max_size()) { search_position_ = not_found; bytes_to_read_ = 0; } // Need to read some more data. else { if (result.first != end) { // Partial match. Next search needs to start from beginning of // match. search_position_ = result.first - begin; } else { // Next search can start with the new data. search_position_ = end - begin; } bytes_to_read_ = std::min( std::max(512, buffers_.capacity() - buffers_.size()), std::min(65536, buffers_.max_size() - buffers_.size())); } } // Check if we're done. if (!start && bytes_to_read_ == 0) break; // Start a new asynchronous read operation to obtain more data. pos = buffers_.size(); buffers_.grow(bytes_to_read_); { ASIO_HANDLER_LOCATION(( __FILE__, __LINE__, "async_read_until")); stream_.async_read_some(buffers_.data(pos, bytes_to_read_), ASIO_MOVE_CAST(read_until_delim_string_op_v2)(*this)); } return; default: buffers_.shrink(bytes_to_read_ - bytes_transferred); if (ec || bytes_transferred == 0) break; } const asio::error_code result_ec = (search_position_ == not_found) ? error::not_found : ec; const std::size_t result_n = (ec || search_position_ == not_found) ? 0 : search_position_; handler_(result_ec, result_n); } } //private: AsyncReadStream& stream_; DynamicBuffer_v2 buffers_; std::string delim_; int start_; std::size_t search_position_; std::size_t bytes_to_read_; ReadHandler handler_; }; template inline asio_handler_allocate_is_deprecated asio_handler_allocate(std::size_t size, read_until_delim_string_op_v2* this_handler) { #if defined(ASIO_NO_DEPRECATED) asio_handler_alloc_helpers::allocate(size, this_handler->handler_); return asio_handler_allocate_is_no_longer_used(); #else // defined(ASIO_NO_DEPRECATED) return asio_handler_alloc_helpers::allocate( size, this_handler->handler_); #endif // defined(ASIO_NO_DEPRECATED) } template inline asio_handler_deallocate_is_deprecated asio_handler_deallocate(void* pointer, std::size_t size, read_until_delim_string_op_v2* this_handler) { asio_handler_alloc_helpers::deallocate( pointer, size, this_handler->handler_); #if defined(ASIO_NO_DEPRECATED) return asio_handler_deallocate_is_no_longer_used(); #endif // defined(ASIO_NO_DEPRECATED) } template inline bool asio_handler_is_continuation( read_until_delim_string_op_v2* this_handler) { return this_handler->start_ == 0 ? true : asio_handler_cont_helpers::is_continuation( this_handler->handler_); } template inline asio_handler_invoke_is_deprecated asio_handler_invoke(Function& function, read_until_delim_string_op_v2* this_handler) { asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(ASIO_NO_DEPRECATED) } template inline asio_handler_invoke_is_deprecated asio_handler_invoke(const Function& function, read_until_delim_string_op_v2* this_handler) { asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(ASIO_NO_DEPRECATED) } template class initiate_async_read_until_delim_string_v2 { public: typedef typename AsyncReadStream::executor_type executor_type; explicit initiate_async_read_until_delim_string_v2(AsyncReadStream& stream) : stream_(stream) { } executor_type get_executor() const ASIO_NOEXCEPT { return stream_.get_executor(); } template void operator()(ASIO_MOVE_ARG(ReadHandler) handler, ASIO_MOVE_ARG(DynamicBuffer_v2) buffers, const std::string& delim) const { // If you get an error on the following line it means that your handler // does not meet the documented type requirements for a ReadHandler. ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; non_const_lvalue handler2(handler); read_until_delim_string_op_v2::type, typename decay::type>( stream_, ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), delim, handler2.value)(asio::error_code(), 0, 1); } private: AsyncReadStream& stream_; }; } // namespace detail #if !defined(GENERATING_DOCUMENTATION) template struct associated_allocator< detail::read_until_delim_string_op_v2, Allocator> { typedef typename associated_allocator::type type; static type get( const detail::read_until_delim_string_op_v2& h, const Allocator& a = Allocator()) ASIO_NOEXCEPT { return associated_allocator::get(h.handler_, a); } }; template struct associated_executor< detail::read_until_delim_string_op_v2, Executor> : detail::associated_executor_forwarding_base { typedef typename associated_executor::type type; static type get( const detail::read_until_delim_string_op_v2& h, const Executor& ex = Executor()) ASIO_NOEXCEPT { return associated_executor::get(h.handler_, ex); } }; #endif // !defined(GENERATING_DOCUMENTATION) template ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (asio::error_code, std::size_t)) async_read_until(AsyncReadStream& s, DynamicBuffer_v2 buffers, ASIO_STRING_VIEW_PARAM delim, ASIO_MOVE_ARG(ReadHandler) handler, typename enable_if< is_dynamic_buffer_v2::value >::type*) { return async_initiate( detail::initiate_async_read_until_delim_string_v2(s), handler, ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), static_cast(delim)); } #if !defined(ASIO_NO_EXTENSIONS) #if defined(ASIO_HAS_BOOST_REGEX) namespace detail { template class read_until_expr_op_v2 { public: template read_until_expr_op_v2(AsyncReadStream& stream, ASIO_MOVE_ARG(BufferSequence) buffers, const boost::regex& expr, ReadHandler& handler) : stream_(stream), buffers_(ASIO_MOVE_CAST(BufferSequence)(buffers)), expr_(expr), start_(0), search_position_(0), bytes_to_read_(0), handler_(ASIO_MOVE_CAST(ReadHandler)(handler)) { } #if defined(ASIO_HAS_MOVE) read_until_expr_op_v2(const read_until_expr_op_v2& other) : stream_(other.stream_), buffers_(other.buffers_), expr_(other.expr_), start_(other.start_), search_position_(other.search_position_), bytes_to_read_(other.bytes_to_read_), handler_(other.handler_) { } read_until_expr_op_v2(read_until_expr_op_v2&& other) : stream_(other.stream_), buffers_(ASIO_MOVE_CAST(DynamicBuffer_v2)(other.buffers_)), expr_(other.expr_), start_(other.start_), search_position_(other.search_position_), bytes_to_read_(other.bytes_to_read_), handler_(ASIO_MOVE_CAST(ReadHandler)(other.handler_)) { } #endif // defined(ASIO_HAS_MOVE) void operator()(const asio::error_code& ec, std::size_t bytes_transferred, int start = 0) { const std::size_t not_found = (std::numeric_limits::max)(); std::size_t pos; switch (start_ = start) { case 1: for (;;) { { // Determine the range of the data to be searched. typedef typename DynamicBuffer_v2::const_buffers_type buffers_type; typedef buffers_iterator iterator; buffers_type data_buffers = const_cast(buffers_).data( 0, buffers_.size()); iterator begin = iterator::begin(data_buffers); iterator start_pos = begin + search_position_; iterator end = iterator::end(data_buffers); // Look for a match. boost::match_results >::allocator_type> match_results; bool match = regex_search(start_pos, end, match_results, expr_, boost::match_default | boost::match_partial); if (match && match_results[0].matched) { // Full match. We're done. search_position_ = match_results[0].second - begin; bytes_to_read_ = 0; } // No match yet. Check if buffer is full. else if (buffers_.size() == buffers_.max_size()) { search_position_ = not_found; bytes_to_read_ = 0; } // Need to read some more data. else { if (match) { // Partial match. Next search needs to start from beginning of // match. search_position_ = match_results[0].first - begin; } else { // Next search can start with the new data. search_position_ = end - begin; } bytes_to_read_ = std::min( std::max(512, buffers_.capacity() - buffers_.size()), std::min(65536, buffers_.max_size() - buffers_.size())); } } // Check if we're done. if (!start && bytes_to_read_ == 0) break; // Start a new asynchronous read operation to obtain more data. pos = buffers_.size(); buffers_.grow(bytes_to_read_); { ASIO_HANDLER_LOCATION(( __FILE__, __LINE__, "async_read_until")); stream_.async_read_some(buffers_.data(pos, bytes_to_read_), ASIO_MOVE_CAST(read_until_expr_op_v2)(*this)); } return; default: buffers_.shrink(bytes_to_read_ - bytes_transferred); if (ec || bytes_transferred == 0) break; } const asio::error_code result_ec = (search_position_ == not_found) ? error::not_found : ec; const std::size_t result_n = (ec || search_position_ == not_found) ? 0 : search_position_; handler_(result_ec, result_n); } } //private: AsyncReadStream& stream_; DynamicBuffer_v2 buffers_; RegEx expr_; int start_; std::size_t search_position_; std::size_t bytes_to_read_; ReadHandler handler_; }; template inline asio_handler_allocate_is_deprecated asio_handler_allocate(std::size_t size, read_until_expr_op_v2* this_handler) { #if defined(ASIO_NO_DEPRECATED) asio_handler_alloc_helpers::allocate(size, this_handler->handler_); return asio_handler_allocate_is_no_longer_used(); #else // defined(ASIO_NO_DEPRECATED) return asio_handler_alloc_helpers::allocate( size, this_handler->handler_); #endif // defined(ASIO_NO_DEPRECATED) } template inline asio_handler_deallocate_is_deprecated asio_handler_deallocate(void* pointer, std::size_t size, read_until_expr_op_v2* this_handler) { asio_handler_alloc_helpers::deallocate( pointer, size, this_handler->handler_); #if defined(ASIO_NO_DEPRECATED) return asio_handler_deallocate_is_no_longer_used(); #endif // defined(ASIO_NO_DEPRECATED) } template inline bool asio_handler_is_continuation( read_until_expr_op_v2* this_handler) { return this_handler->start_ == 0 ? true : asio_handler_cont_helpers::is_continuation( this_handler->handler_); } template inline asio_handler_invoke_is_deprecated asio_handler_invoke(Function& function, read_until_expr_op_v2* this_handler) { asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(ASIO_NO_DEPRECATED) } template inline asio_handler_invoke_is_deprecated asio_handler_invoke(const Function& function, read_until_expr_op_v2* this_handler) { asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(ASIO_NO_DEPRECATED) } template class initiate_async_read_until_expr_v2 { public: typedef typename AsyncReadStream::executor_type executor_type; explicit initiate_async_read_until_expr_v2(AsyncReadStream& stream) : stream_(stream) { } executor_type get_executor() const ASIO_NOEXCEPT { return stream_.get_executor(); } template void operator()(ASIO_MOVE_ARG(ReadHandler) handler, ASIO_MOVE_ARG(DynamicBuffer_v2) buffers, const RegEx& expr) const { // If you get an error on the following line it means that your handler // does not meet the documented type requirements for a ReadHandler. ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; non_const_lvalue handler2(handler); read_until_expr_op_v2::type, RegEx, typename decay::type>( stream_, ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), expr, handler2.value)(asio::error_code(), 0, 1); } private: AsyncReadStream& stream_; }; } // namespace detail #if !defined(GENERATING_DOCUMENTATION) template struct associated_allocator< detail::read_until_expr_op_v2, Allocator> { typedef typename associated_allocator::type type; static type get( const detail::read_until_expr_op_v2& h, const Allocator& a = Allocator()) ASIO_NOEXCEPT { return associated_allocator::get(h.handler_, a); } }; template struct associated_executor< detail::read_until_expr_op_v2