boost/asio/impl/read_until.hpp
// // impl/read_until.hpp // ~~~~~~~~~~~~~~~~~~~ // // Copyright (c) 2003-2021 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 BOOST_ASIO_IMPL_READ_UNTIL_HPP #define BOOST_ASIO_IMPL_READ_UNTIL_HPP #if defined(_MSC_VER) && (_MSC_VER >= 1200) # pragma once #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) #include <algorithm> #include <string> #include <vector> #include <utility> #include <boost/asio/associator.hpp> #include <boost/asio/buffer.hpp> #include <boost/asio/buffers_iterator.hpp> #include <boost/asio/detail/base_from_cancellation_state.hpp> #include <boost/asio/detail/bind_handler.hpp> #include <boost/asio/detail/handler_alloc_helpers.hpp> #include <boost/asio/detail/handler_cont_helpers.hpp> #include <boost/asio/detail/handler_invoke_helpers.hpp> #include <boost/asio/detail/handler_tracking.hpp> #include <boost/asio/detail/handler_type_requirements.hpp> #include <boost/asio/detail/limits.hpp> #include <boost/asio/detail/non_const_lvalue.hpp> #include <boost/asio/detail/throw_error.hpp> #include <boost/asio/detail/push_options.hpp> namespace boost { 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 <typename Iterator1, typename Iterator2> std::pair<Iterator1, bool> 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(BOOST_ASIO_NO_DYNAMIC_BUFFER_V1) template <typename SyncReadStream, typename DynamicBuffer_v1> inline std::size_t read_until(SyncReadStream& s, BOOST_ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, char delim, typename constraint< is_dynamic_buffer_v1<typename decay<DynamicBuffer_v1>::type>::value >::type, typename constraint< !is_dynamic_buffer_v2<typename decay<DynamicBuffer_v1>::type>::value >::type) { boost::system::error_code ec; std::size_t bytes_transferred = read_until(s, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), delim, ec); boost::asio::detail::throw_error(ec, "read_until"); return bytes_transferred; } template <typename SyncReadStream, typename DynamicBuffer_v1> std::size_t read_until(SyncReadStream& s, BOOST_ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, char delim, boost::system::error_code& ec, typename constraint< is_dynamic_buffer_v1<typename decay<DynamicBuffer_v1>::type>::value >::type, typename constraint< !is_dynamic_buffer_v2<typename decay<DynamicBuffer_v1>::type>::value >::type) { typename decay<DynamicBuffer_v1>::type b( BOOST_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<buffers_type> 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 = boost::system::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::size_t>( std::max<std::size_t>(512, b.capacity() - b.size()), std::min<std::size_t>(65536, b.max_size() - b.size())); b.commit(s.read_some(b.prepare(bytes_to_read), ec)); if (ec) return 0; } } template <typename SyncReadStream, typename DynamicBuffer_v1> inline std::size_t read_until(SyncReadStream& s, BOOST_ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, BOOST_ASIO_STRING_VIEW_PARAM delim, typename constraint< is_dynamic_buffer_v1<typename decay<DynamicBuffer_v1>::type>::value >::type, typename constraint< !is_dynamic_buffer_v2<typename decay<DynamicBuffer_v1>::type>::value >::type) { boost::system::error_code ec; std::size_t bytes_transferred = read_until(s, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), delim, ec); boost::asio::detail::throw_error(ec, "read_until"); return bytes_transferred; } template <typename SyncReadStream, typename DynamicBuffer_v1> std::size_t read_until(SyncReadStream& s, BOOST_ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, BOOST_ASIO_STRING_VIEW_PARAM delim, boost::system::error_code& ec, typename constraint< is_dynamic_buffer_v1<typename decay<DynamicBuffer_v1>::type>::value >::type, typename constraint< !is_dynamic_buffer_v2<typename decay<DynamicBuffer_v1>::type>::value >::type) { typename decay<DynamicBuffer_v1>::type b( BOOST_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<buffers_type> 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<iterator, bool> result = detail::partial_search( start_pos, end, delim.begin(), delim.end()); if (result.first != end) { if (result.second) { // Full match. We're done. ec = boost::system::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::size_t>( std::max<std::size_t>(512, b.capacity() - b.size()), std::min<std::size_t>(65536, b.max_size() - b.size())); b.commit(s.read_some(b.prepare(bytes_to_read), ec)); if (ec) return 0; } } #if !defined(BOOST_ASIO_NO_EXTENSIONS) #if defined(BOOST_ASIO_HAS_BOOST_REGEX) template <typename SyncReadStream, typename DynamicBuffer_v1> inline std::size_t read_until(SyncReadStream& s, BOOST_ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, const boost::regex& expr, typename constraint< is_dynamic_buffer_v1<typename decay<DynamicBuffer_v1>::type>::value >::type, typename constraint< !is_dynamic_buffer_v2<typename decay<DynamicBuffer_v1>::type>::value >::type) { boost::system::error_code ec; std::size_t bytes_transferred = read_until(s, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), expr, ec); boost::asio::detail::throw_error(ec, "read_until"); return bytes_transferred; } template <typename SyncReadStream, typename DynamicBuffer_v1> std::size_t read_until(SyncReadStream& s, BOOST_ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, const boost::regex& expr, boost::system::error_code& ec, typename constraint< is_dynamic_buffer_v1<typename decay<DynamicBuffer_v1>::type>::value >::type, typename constraint< !is_dynamic_buffer_v2<typename decay<DynamicBuffer_v1>::type>::value >::type) { typename decay<DynamicBuffer_v1>::type b( BOOST_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<buffers_type> 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<iterator, typename std::vector<boost::sub_match<iterator> >::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 = boost::system::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::size_t>( std::max<std::size_t>(512, b.capacity() - b.size()), std::min<std::size_t>(65536, b.max_size() - b.size())); b.commit(s.read_some(b.prepare(bytes_to_read), ec)); if (ec) return 0; } } #endif // defined(BOOST_ASIO_HAS_BOOST_REGEX) template <typename SyncReadStream, typename DynamicBuffer_v1, typename MatchCondition> inline std::size_t read_until(SyncReadStream& s, BOOST_ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, MatchCondition match_condition, typename constraint< is_match_condition<MatchCondition>::value >::type, typename constraint< is_dynamic_buffer_v1<typename decay<DynamicBuffer_v1>::type>::value >::type, typename constraint< !is_dynamic_buffer_v2<typename decay<DynamicBuffer_v1>::type>::value >::type) { boost::system::error_code ec; std::size_t bytes_transferred = read_until(s, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), match_condition, ec); boost::asio::detail::throw_error(ec, "read_until"); return bytes_transferred; } template <typename SyncReadStream, typename DynamicBuffer_v1, typename MatchCondition> std::size_t read_until(SyncReadStream& s, BOOST_ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, MatchCondition match_condition, boost::system::error_code& ec, typename constraint< is_match_condition<MatchCondition>::value >::type, typename constraint< is_dynamic_buffer_v1<typename decay<DynamicBuffer_v1>::type>::value >::type, typename constraint< !is_dynamic_buffer_v2<typename decay<DynamicBuffer_v1>::type>::value >::type) { typename decay<DynamicBuffer_v1>::type b( BOOST_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<buffers_type> 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<iterator, bool> result = match_condition(start_pos, end); if (result.second) { // Full match. We're done. ec = boost::system::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::size_t>( std::max<std::size_t>(512, b.capacity() - b.size()), std::min<std::size_t>(65536, b.max_size() - b.size())); b.commit(s.read_some(b.prepare(bytes_to_read), ec)); if (ec) return 0; } } #if !defined(BOOST_ASIO_NO_IOSTREAM) template <typename SyncReadStream, typename Allocator> inline std::size_t read_until(SyncReadStream& s, boost::asio::basic_streambuf<Allocator>& b, char delim) { return read_until(s, basic_streambuf_ref<Allocator>(b), delim); } template <typename SyncReadStream, typename Allocator> inline std::size_t read_until(SyncReadStream& s, boost::asio::basic_streambuf<Allocator>& b, char delim, boost::system::error_code& ec) { return read_until(s, basic_streambuf_ref<Allocator>(b), delim, ec); } template <typename SyncReadStream, typename Allocator> inline std::size_t read_until(SyncReadStream& s, boost::asio::basic_streambuf<Allocator>& b, BOOST_ASIO_STRING_VIEW_PARAM delim) { return read_until(s, basic_streambuf_ref<Allocator>(b), delim); } template <typename SyncReadStream, typename Allocator> inline std::size_t read_until(SyncReadStream& s, boost::asio::basic_streambuf<Allocator>& b, BOOST_ASIO_STRING_VIEW_PARAM delim, boost::system::error_code& ec) { return read_until(s, basic_streambuf_ref<Allocator>(b), delim, ec); } #if defined(BOOST_ASIO_HAS_BOOST_REGEX) template <typename SyncReadStream, typename Allocator> inline std::size_t read_until(SyncReadStream& s, boost::asio::basic_streambuf<Allocator>& b, const boost::regex& expr) { return read_until(s, basic_streambuf_ref<Allocator>(b), expr); } template <typename SyncReadStream, typename Allocator> inline std::size_t read_until(SyncReadStream& s, boost::asio::basic_streambuf<Allocator>& b, const boost::regex& expr, boost::system::error_code& ec) { return read_until(s, basic_streambuf_ref<Allocator>(b), expr, ec); } #endif // defined(BOOST_ASIO_HAS_BOOST_REGEX) template <typename SyncReadStream, typename Allocator, typename MatchCondition> inline std::size_t read_until(SyncReadStream& s, boost::asio::basic_streambuf<Allocator>& b, MatchCondition match_condition, typename constraint<is_match_condition<MatchCondition>::value>::type) { return read_until(s, basic_streambuf_ref<Allocator>(b), match_condition); } template <typename SyncReadStream, typename Allocator, typename MatchCondition> inline std::size_t read_until(SyncReadStream& s, boost::asio::basic_streambuf<Allocator>& b, MatchCondition match_condition, boost::system::error_code& ec, typename constraint<is_match_condition<MatchCondition>::value>::type) { return read_until(s, basic_streambuf_ref<Allocator>(b), match_condition, ec); } #endif // !defined(BOOST_ASIO_NO_IOSTREAM) #endif // !defined(BOOST_ASIO_NO_EXTENSIONS) #endif // !defined(BOOST_ASIO_NO_DYNAMIC_BUFFER_V1) template <typename SyncReadStream, typename DynamicBuffer_v2> inline std::size_t read_until(SyncReadStream& s, DynamicBuffer_v2 buffers, char delim, typename constraint< is_dynamic_buffer_v2<DynamicBuffer_v2>::value >::type) { boost::system::error_code ec; std::size_t bytes_transferred = read_until(s, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), delim, ec); boost::asio::detail::throw_error(ec, "read_until"); return bytes_transferred; } template <typename SyncReadStream, typename DynamicBuffer_v2> std::size_t read_until(SyncReadStream& s, DynamicBuffer_v2 buffers, char delim, boost::system::error_code& ec, typename constraint< is_dynamic_buffer_v2<DynamicBuffer_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<buffers_type> iterator; buffers_type data_buffers = const_cast<const DynamicBuffer_v2&>(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 = boost::system::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::size_t>( std::max<std::size_t>(512, b.capacity() - b.size()), std::min<std::size_t>(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 <typename SyncReadStream, typename DynamicBuffer_v2> inline std::size_t read_until(SyncReadStream& s, DynamicBuffer_v2 buffers, BOOST_ASIO_STRING_VIEW_PARAM delim, typename constraint< is_dynamic_buffer_v2<DynamicBuffer_v2>::value >::type) { boost::system::error_code ec; std::size_t bytes_transferred = read_until(s, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), delim, ec); boost::asio::detail::throw_error(ec, "read_until"); return bytes_transferred; } template <typename SyncReadStream, typename DynamicBuffer_v2> std::size_t read_until(SyncReadStream& s, DynamicBuffer_v2 buffers, BOOST_ASIO_STRING_VIEW_PARAM delim, boost::system::error_code& ec, typename constraint< is_dynamic_buffer_v2<DynamicBuffer_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<buffers_type> iterator; buffers_type data_buffers = const_cast<const DynamicBuffer_v2&>(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<iterator, bool> result = detail::partial_search( start_pos, end, delim.begin(), delim.end()); if (result.first != end) { if (result.second) { // Full match. We're done. ec = boost::system::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::size_t>( std::max<std::size_t>(512, b.capacity() - b.size()), std::min<std::size_t>(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(BOOST_ASIO_NO_EXTENSIONS) #if defined(BOOST_ASIO_HAS_BOOST_REGEX) template <typename SyncReadStream, typename DynamicBuffer_v2> inline std::size_t read_until(SyncReadStream& s, DynamicBuffer_v2 buffers, const boost::regex& expr, typename constraint< is_dynamic_buffer_v2<DynamicBuffer_v2>::value >::type) { boost::system::error_code ec; std::size_t bytes_transferred = read_until(s, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), expr, ec); boost::asio::detail::throw_error(ec, "read_until"); return bytes_transferred; } template <typename SyncReadStream, typename DynamicBuffer_v2> std::size_t read_until(SyncReadStream& s, DynamicBuffer_v2 buffers, const boost::regex& expr, boost::system::error_code& ec, typename constraint< is_dynamic_buffer_v2<DynamicBuffer_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<buffers_type> iterator; buffers_type data_buffers = const_cast<const DynamicBuffer_v2&>(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<iterator, typename std::vector<boost::sub_match<iterator> >::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 = boost::system::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::size_t>( std::max<std::size_t>(512, b.capacity() - b.size()), std::min<std::size_t>(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(BOOST_ASIO_HAS_BOOST_REGEX) template <typename SyncReadStream, typename DynamicBuffer_v2, typename MatchCondition> inline std::size_t read_until(SyncReadStream& s, DynamicBuffer_v2 buffers, MatchCondition match_condition, typename constraint< is_match_condition<MatchCondition>::value >::type, typename constraint< is_dynamic_buffer_v2<DynamicBuffer_v2>::value >::type) { boost::system::error_code ec; std::size_t bytes_transferred = read_until(s, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), match_condition, ec); boost::asio::detail::throw_error(ec, "read_until"); return bytes_transferred; } template <typename SyncReadStream, typename DynamicBuffer_v2, typename MatchCondition> std::size_t read_until(SyncReadStream& s, DynamicBuffer_v2 buffers, MatchCondition match_condition, boost::system::error_code& ec, typename constraint< is_match_condition<MatchCondition>::value >::type, typename constraint< is_dynamic_buffer_v2<DynamicBuffer_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<buffers_type> iterator; buffers_type data_buffers = const_cast<const DynamicBuffer_v2&>(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<iterator, bool> result = match_condition(start_pos, end); if (result.second) { // Full match. We're done. ec = boost::system::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::size_t>( std::max<std::size_t>(512, b.capacity() - b.size()), std::min<std::size_t>(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(BOOST_ASIO_NO_EXTENSIONS) #if !defined(BOOST_ASIO_NO_DYNAMIC_BUFFER_V1) namespace detail { template <typename AsyncReadStream, typename DynamicBuffer_v1, typename ReadHandler> class read_until_delim_op_v1 : public base_from_cancellation_state<ReadHandler> { public: template <typename BufferSequence> read_until_delim_op_v1(AsyncReadStream& stream, BOOST_ASIO_MOVE_ARG(BufferSequence) buffers, char delim, ReadHandler& handler) : base_from_cancellation_state<ReadHandler>( handler, enable_partial_cancellation()), stream_(stream), buffers_(BOOST_ASIO_MOVE_CAST(BufferSequence)(buffers)), delim_(delim), start_(0), search_position_(0), handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)) { } #if defined(BOOST_ASIO_HAS_MOVE) read_until_delim_op_v1(const read_until_delim_op_v1& other) : base_from_cancellation_state<ReadHandler>(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) : base_from_cancellation_state<ReadHandler>( BOOST_ASIO_MOVE_CAST(base_from_cancellation_state< ReadHandler>)(other)), stream_(other.stream_), buffers_(BOOST_ASIO_MOVE_CAST(DynamicBuffer_v1)(other.buffers_)), delim_(other.delim_), start_(other.start_), search_position_(other.search_position_), handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(other.handler_)) { } #endif // defined(BOOST_ASIO_HAS_MOVE) void operator()(boost::system::error_code ec, std::size_t bytes_transferred, int start = 0) { const std::size_t not_found = (std::numeric_limits<std::size_t>::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<buffers_type> 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::size_t>( std::max<std::size_t>(512, buffers_.capacity() - buffers_.size()), std::min<std::size_t>(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. { BOOST_ASIO_HANDLER_LOCATION(( __FILE__, __LINE__, "async_read_until")); stream_.async_read_some(buffers_.prepare(bytes_to_read), BOOST_ASIO_MOVE_CAST(read_until_delim_op_v1)(*this)); } return; default: buffers_.commit(bytes_transferred); if (ec || bytes_transferred == 0) break; if (this->cancelled() != cancellation_type::none) { ec = error::operation_aborted; break; } } const boost::system::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_; BOOST_ASIO_MOVE_OR_LVALUE(ReadHandler)(handler_)(result_ec, result_n); } } //private: AsyncReadStream& stream_; DynamicBuffer_v1 buffers_; char delim_; int start_; std::size_t search_position_; ReadHandler handler_; }; template <typename AsyncReadStream, typename DynamicBuffer_v1, typename ReadHandler> inline asio_handler_allocate_is_deprecated asio_handler_allocate(std::size_t size, read_until_delim_op_v1<AsyncReadStream, DynamicBuffer_v1, ReadHandler>* this_handler) { #if defined(BOOST_ASIO_NO_DEPRECATED) boost_asio_handler_alloc_helpers::allocate(size, this_handler->handler_); return asio_handler_allocate_is_no_longer_used(); #else // defined(BOOST_ASIO_NO_DEPRECATED) return boost_asio_handler_alloc_helpers::allocate( size, this_handler->handler_); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream, typename DynamicBuffer_v1, typename ReadHandler> inline asio_handler_deallocate_is_deprecated asio_handler_deallocate(void* pointer, std::size_t size, read_until_delim_op_v1<AsyncReadStream, DynamicBuffer_v1, ReadHandler>* this_handler) { boost_asio_handler_alloc_helpers::deallocate( pointer, size, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_deallocate_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream, typename DynamicBuffer_v1, typename ReadHandler> inline bool asio_handler_is_continuation( read_until_delim_op_v1<AsyncReadStream, DynamicBuffer_v1, ReadHandler>* this_handler) { return this_handler->start_ == 0 ? true : boost_asio_handler_cont_helpers::is_continuation( this_handler->handler_); } template <typename Function, typename AsyncReadStream, typename DynamicBuffer_v1, typename ReadHandler> inline asio_handler_invoke_is_deprecated asio_handler_invoke(Function& function, read_until_delim_op_v1<AsyncReadStream, DynamicBuffer_v1, ReadHandler>* this_handler) { boost_asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename Function, typename AsyncReadStream, typename DynamicBuffer_v1, typename ReadHandler> inline asio_handler_invoke_is_deprecated asio_handler_invoke(const Function& function, read_until_delim_op_v1<AsyncReadStream, DynamicBuffer_v1, ReadHandler>* this_handler) { boost_asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream> 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 BOOST_ASIO_NOEXCEPT { return stream_.get_executor(); } template <typename ReadHandler, typename DynamicBuffer_v1> void operator()(BOOST_ASIO_MOVE_ARG(ReadHandler) handler, BOOST_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. BOOST_ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; non_const_lvalue<ReadHandler> handler2(handler); read_until_delim_op_v1<AsyncReadStream, typename decay<DynamicBuffer_v1>::type, typename decay<ReadHandler>::type>( stream_, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), delim, handler2.value)(boost::system::error_code(), 0, 1); } private: AsyncReadStream& stream_; }; } // namespace detail #if !defined(GENERATING_DOCUMENTATION) template <template <typename, typename> class Associator, typename AsyncReadStream, typename DynamicBuffer_v1, typename ReadHandler, typename DefaultCandidate> struct associator<Associator, detail::read_until_delim_op_v1<AsyncReadStream, DynamicBuffer_v1, ReadHandler>, DefaultCandidate> : Associator<ReadHandler, DefaultCandidate> { static typename Associator<ReadHandler, DefaultCandidate>::type get( const detail::read_until_delim_op_v1<AsyncReadStream, DynamicBuffer_v1, ReadHandler>& h, const DefaultCandidate& c = DefaultCandidate()) BOOST_ASIO_NOEXCEPT { return Associator<ReadHandler, DefaultCandidate>::get(h.handler_, c); } }; #endif // !defined(GENERATING_DOCUMENTATION) template <typename AsyncReadStream, typename DynamicBuffer_v1, BOOST_ASIO_COMPLETION_TOKEN_FOR(void (boost::system::error_code, std::size_t)) ReadHandler> BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (boost::system::error_code, std::size_t)) async_read_until(AsyncReadStream& s, BOOST_ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, char delim, BOOST_ASIO_MOVE_ARG(ReadHandler) handler, typename constraint< is_dynamic_buffer_v1<typename decay<DynamicBuffer_v1>::type>::value >::type, typename constraint< !is_dynamic_buffer_v2<typename decay<DynamicBuffer_v1>::type>::value >::type) { return async_initiate<ReadHandler, void (boost::system::error_code, std::size_t)>( detail::initiate_async_read_until_delim_v1<AsyncReadStream>(s), handler, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), delim); } namespace detail { template <typename AsyncReadStream, typename DynamicBuffer_v1, typename ReadHandler> class read_until_delim_string_op_v1 : public base_from_cancellation_state<ReadHandler> { public: template <typename BufferSequence> read_until_delim_string_op_v1(AsyncReadStream& stream, BOOST_ASIO_MOVE_ARG(BufferSequence) buffers, const std::string& delim, ReadHandler& handler) : base_from_cancellation_state<ReadHandler>( handler, enable_partial_cancellation()), stream_(stream), buffers_(BOOST_ASIO_MOVE_CAST(BufferSequence)(buffers)), delim_(delim), start_(0), search_position_(0), handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)) { } #if defined(BOOST_ASIO_HAS_MOVE) read_until_delim_string_op_v1(const read_until_delim_string_op_v1& other) : base_from_cancellation_state<ReadHandler>(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) : base_from_cancellation_state<ReadHandler>( BOOST_ASIO_MOVE_CAST(base_from_cancellation_state< ReadHandler>)(other)), stream_(other.stream_), buffers_(BOOST_ASIO_MOVE_CAST(DynamicBuffer_v1)(other.buffers_)), delim_(BOOST_ASIO_MOVE_CAST(std::string)(other.delim_)), start_(other.start_), search_position_(other.search_position_), handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(other.handler_)) { } #endif // defined(BOOST_ASIO_HAS_MOVE) void operator()(boost::system::error_code ec, std::size_t bytes_transferred, int start = 0) { const std::size_t not_found = (std::numeric_limits<std::size_t>::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<buffers_type> 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<iterator, bool> 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::size_t>( std::max<std::size_t>(512, buffers_.capacity() - buffers_.size()), std::min<std::size_t>(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. { BOOST_ASIO_HANDLER_LOCATION(( __FILE__, __LINE__, "async_read_until")); stream_.async_read_some(buffers_.prepare(bytes_to_read), BOOST_ASIO_MOVE_CAST(read_until_delim_string_op_v1)(*this)); } return; default: buffers_.commit(bytes_transferred); if (ec || bytes_transferred == 0) break; if (this->cancelled() != cancellation_type::none) { ec = error::operation_aborted; break; } } const boost::system::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_; BOOST_ASIO_MOVE_OR_LVALUE(ReadHandler)(handler_)(result_ec, result_n); } } //private: AsyncReadStream& stream_; DynamicBuffer_v1 buffers_; std::string delim_; int start_; std::size_t search_position_; ReadHandler handler_; }; template <typename AsyncReadStream, typename DynamicBuffer_v1, typename ReadHandler> inline asio_handler_allocate_is_deprecated asio_handler_allocate(std::size_t size, read_until_delim_string_op_v1<AsyncReadStream, DynamicBuffer_v1, ReadHandler>* this_handler) { #if defined(BOOST_ASIO_NO_DEPRECATED) boost_asio_handler_alloc_helpers::allocate(size, this_handler->handler_); return asio_handler_allocate_is_no_longer_used(); #else // defined(BOOST_ASIO_NO_DEPRECATED) return boost_asio_handler_alloc_helpers::allocate( size, this_handler->handler_); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream, typename DynamicBuffer_v1, typename ReadHandler> inline asio_handler_deallocate_is_deprecated asio_handler_deallocate(void* pointer, std::size_t size, read_until_delim_string_op_v1<AsyncReadStream, DynamicBuffer_v1, ReadHandler>* this_handler) { boost_asio_handler_alloc_helpers::deallocate( pointer, size, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_deallocate_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream, typename DynamicBuffer_v1, typename ReadHandler> inline bool asio_handler_is_continuation( read_until_delim_string_op_v1<AsyncReadStream, DynamicBuffer_v1, ReadHandler>* this_handler) { return this_handler->start_ == 0 ? true : boost_asio_handler_cont_helpers::is_continuation( this_handler->handler_); } template <typename Function, typename AsyncReadStream, typename DynamicBuffer_v1, typename ReadHandler> inline asio_handler_invoke_is_deprecated asio_handler_invoke(Function& function, read_until_delim_string_op_v1<AsyncReadStream, DynamicBuffer_v1, ReadHandler>* this_handler) { boost_asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename Function, typename AsyncReadStream, typename DynamicBuffer_v1, typename ReadHandler> inline asio_handler_invoke_is_deprecated asio_handler_invoke(const Function& function, read_until_delim_string_op_v1<AsyncReadStream, DynamicBuffer_v1, ReadHandler>* this_handler) { boost_asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream> 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 BOOST_ASIO_NOEXCEPT { return stream_.get_executor(); } template <typename ReadHandler, typename DynamicBuffer_v1> void operator()(BOOST_ASIO_MOVE_ARG(ReadHandler) handler, BOOST_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. BOOST_ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; non_const_lvalue<ReadHandler> handler2(handler); read_until_delim_string_op_v1<AsyncReadStream, typename decay<DynamicBuffer_v1>::type, typename decay<ReadHandler>::type>( stream_, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), delim, handler2.value)(boost::system::error_code(), 0, 1); } private: AsyncReadStream& stream_; }; } // namespace detail #if !defined(GENERATING_DOCUMENTATION) template <template <typename, typename> class Associator, typename AsyncReadStream, typename DynamicBuffer_v1, typename ReadHandler, typename DefaultCandidate> struct associator<Associator, detail::read_until_delim_string_op_v1<AsyncReadStream, DynamicBuffer_v1, ReadHandler>, DefaultCandidate> : Associator<ReadHandler, DefaultCandidate> { static typename Associator<ReadHandler, DefaultCandidate>::type get( const detail::read_until_delim_string_op_v1<AsyncReadStream, DynamicBuffer_v1, ReadHandler>& h, const DefaultCandidate& c = DefaultCandidate()) BOOST_ASIO_NOEXCEPT { return Associator<ReadHandler, DefaultCandidate>::get(h.handler_, c); } }; #endif // !defined(GENERATING_DOCUMENTATION) template <typename AsyncReadStream, typename DynamicBuffer_v1, BOOST_ASIO_COMPLETION_TOKEN_FOR(void (boost::system::error_code, std::size_t)) ReadHandler> BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (boost::system::error_code, std::size_t)) async_read_until(AsyncReadStream& s, BOOST_ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, BOOST_ASIO_STRING_VIEW_PARAM delim, BOOST_ASIO_MOVE_ARG(ReadHandler) handler, typename constraint< is_dynamic_buffer_v1<typename decay<DynamicBuffer_v1>::type>::value >::type, typename constraint< !is_dynamic_buffer_v2<typename decay<DynamicBuffer_v1>::type>::value >::type) { return async_initiate<ReadHandler, void (boost::system::error_code, std::size_t)>( detail::initiate_async_read_until_delim_string_v1<AsyncReadStream>(s), handler, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), static_cast<std::string>(delim)); } #if !defined(BOOST_ASIO_NO_EXTENSIONS) #if defined(BOOST_ASIO_HAS_BOOST_REGEX) namespace detail { template <typename AsyncReadStream, typename DynamicBuffer_v1, typename RegEx, typename ReadHandler> class read_until_expr_op_v1 : public base_from_cancellation_state<ReadHandler> { public: template <typename BufferSequence> read_until_expr_op_v1(AsyncReadStream& stream, BOOST_ASIO_MOVE_ARG(BufferSequence) buffers, const boost::regex& expr, ReadHandler& handler) : base_from_cancellation_state<ReadHandler>( handler, enable_partial_cancellation()), stream_(stream), buffers_(BOOST_ASIO_MOVE_CAST(BufferSequence)(buffers)), expr_(expr), start_(0), search_position_(0), handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)) { } #if defined(BOOST_ASIO_HAS_MOVE) read_until_expr_op_v1(const read_until_expr_op_v1& other) : base_from_cancellation_state<ReadHandler>(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) : base_from_cancellation_state<ReadHandler>( BOOST_ASIO_MOVE_CAST(base_from_cancellation_state< ReadHandler>)(other)), stream_(other.stream_), buffers_(BOOST_ASIO_MOVE_CAST(DynamicBuffer_v1)(other.buffers_)), expr_(other.expr_), start_(other.start_), search_position_(other.search_position_), handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(other.handler_)) { } #endif // defined(BOOST_ASIO_HAS_MOVE) void operator()(boost::system::error_code ec, std::size_t bytes_transferred, int start = 0) { const std::size_t not_found = (std::numeric_limits<std::size_t>::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<buffers_type> 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<iterator, typename std::vector<boost::sub_match<iterator> >::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::size_t>( std::max<std::size_t>(512, buffers_.capacity() - buffers_.size()), std::min<std::size_t>(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. { BOOST_ASIO_HANDLER_LOCATION(( __FILE__, __LINE__, "async_read_until")); stream_.async_read_some(buffers_.prepare(bytes_to_read), BOOST_ASIO_MOVE_CAST(read_until_expr_op_v1)(*this)); } return; default: buffers_.commit(bytes_transferred); if (ec || bytes_transferred == 0) break; if (this->cancelled() != cancellation_type::none) { ec = error::operation_aborted; break; } } const boost::system::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_; BOOST_ASIO_MOVE_OR_LVALUE(ReadHandler)(handler_)(result_ec, result_n); } } //private: AsyncReadStream& stream_; DynamicBuffer_v1 buffers_; RegEx expr_; int start_; std::size_t search_position_; ReadHandler handler_; }; template <typename AsyncReadStream, typename DynamicBuffer_v1, typename RegEx, typename ReadHandler> inline asio_handler_allocate_is_deprecated asio_handler_allocate(std::size_t size, read_until_expr_op_v1<AsyncReadStream, DynamicBuffer_v1, RegEx, ReadHandler>* this_handler) { #if defined(BOOST_ASIO_NO_DEPRECATED) boost_asio_handler_alloc_helpers::allocate(size, this_handler->handler_); return asio_handler_allocate_is_no_longer_used(); #else // defined(BOOST_ASIO_NO_DEPRECATED) return boost_asio_handler_alloc_helpers::allocate( size, this_handler->handler_); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream, typename DynamicBuffer_v1, typename RegEx, typename ReadHandler> inline asio_handler_deallocate_is_deprecated asio_handler_deallocate(void* pointer, std::size_t size, read_until_expr_op_v1<AsyncReadStream, DynamicBuffer_v1, RegEx, ReadHandler>* this_handler) { boost_asio_handler_alloc_helpers::deallocate( pointer, size, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_deallocate_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream, typename DynamicBuffer_v1, typename RegEx, typename ReadHandler> inline bool asio_handler_is_continuation( read_until_expr_op_v1<AsyncReadStream, DynamicBuffer_v1, RegEx, ReadHandler>* this_handler) { return this_handler->start_ == 0 ? true : boost_asio_handler_cont_helpers::is_continuation( this_handler->handler_); } template <typename Function, typename AsyncReadStream, typename DynamicBuffer_v1, typename RegEx, typename ReadHandler> inline asio_handler_invoke_is_deprecated asio_handler_invoke(Function& function, read_until_expr_op_v1<AsyncReadStream, DynamicBuffer_v1, RegEx, ReadHandler>* this_handler) { boost_asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename Function, typename AsyncReadStream, typename DynamicBuffer_v1, typename RegEx, typename ReadHandler> inline asio_handler_invoke_is_deprecated asio_handler_invoke(const Function& function, read_until_expr_op_v1<AsyncReadStream, DynamicBuffer_v1, RegEx, ReadHandler>* this_handler) { boost_asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream> 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 BOOST_ASIO_NOEXCEPT { return stream_.get_executor(); } template <typename ReadHandler, typename DynamicBuffer_v1, typename RegEx> void operator()(BOOST_ASIO_MOVE_ARG(ReadHandler) handler, BOOST_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. BOOST_ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; non_const_lvalue<ReadHandler> handler2(handler); read_until_expr_op_v1<AsyncReadStream, typename decay<DynamicBuffer_v1>::type, RegEx, typename decay<ReadHandler>::type>( stream_, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), expr, handler2.value)(boost::system::error_code(), 0, 1); } private: AsyncReadStream& stream_; }; } // namespace detail #if !defined(GENERATING_DOCUMENTATION) template <template <typename, typename> class Associator, typename AsyncReadStream, typename DynamicBuffer_v1, typename RegEx, typename ReadHandler, typename DefaultCandidate> struct associator<Associator, detail::read_until_expr_op_v1<AsyncReadStream, DynamicBuffer_v1, RegEx, ReadHandler>, DefaultCandidate> : Associator<ReadHandler, DefaultCandidate> { static typename Associator<ReadHandler, DefaultCandidate>::type get( const detail::read_until_expr_op_v1<AsyncReadStream, DynamicBuffer_v1, RegEx, ReadHandler>& h, const DefaultCandidate& c = DefaultCandidate()) BOOST_ASIO_NOEXCEPT { return Associator<ReadHandler, DefaultCandidate>::get(h.handler_, c); } }; #endif // !defined(GENERATING_DOCUMENTATION) template <typename AsyncReadStream, typename DynamicBuffer_v1, BOOST_ASIO_COMPLETION_TOKEN_FOR(void (boost::system::error_code, std::size_t)) ReadHandler> BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (boost::system::error_code, std::size_t)) async_read_until(AsyncReadStream& s, BOOST_ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, const boost::regex& expr, BOOST_ASIO_MOVE_ARG(ReadHandler) handler, typename constraint< is_dynamic_buffer_v1<typename decay<DynamicBuffer_v1>::type>::value >::type, typename constraint< !is_dynamic_buffer_v2<typename decay<DynamicBuffer_v1>::type>::value >::type) { return async_initiate<ReadHandler, void (boost::system::error_code, std::size_t)>( detail::initiate_async_read_until_expr_v1<AsyncReadStream>(s), handler, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), expr); } #endif // defined(BOOST_ASIO_HAS_BOOST_REGEX) namespace detail { template <typename AsyncReadStream, typename DynamicBuffer_v1, typename MatchCondition, typename ReadHandler> class read_until_match_op_v1 : public base_from_cancellation_state<ReadHandler> { public: template <typename BufferSequence> read_until_match_op_v1(AsyncReadStream& stream, BOOST_ASIO_MOVE_ARG(BufferSequence) buffers, MatchCondition match_condition, ReadHandler& handler) : base_from_cancellation_state<ReadHandler>( handler, enable_partial_cancellation()), stream_(stream), buffers_(BOOST_ASIO_MOVE_CAST(BufferSequence)(buffers)), match_condition_(match_condition), start_(0), search_position_(0), handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)) { } #if defined(BOOST_ASIO_HAS_MOVE) read_until_match_op_v1(const read_until_match_op_v1& other) : base_from_cancellation_state<ReadHandler>(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) : base_from_cancellation_state<ReadHandler>( BOOST_ASIO_MOVE_CAST(base_from_cancellation_state< ReadHandler>)(other)), stream_(other.stream_), buffers_(BOOST_ASIO_MOVE_CAST(DynamicBuffer_v1)(other.buffers_)), match_condition_(other.match_condition_), start_(other.start_), search_position_(other.search_position_), handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(other.handler_)) { } #endif // defined(BOOST_ASIO_HAS_MOVE) void operator()(boost::system::error_code ec, std::size_t bytes_transferred, int start = 0) { const std::size_t not_found = (std::numeric_limits<std::size_t>::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<buffers_type> 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<iterator, bool> 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::size_t>( std::max<std::size_t>(512, buffers_.capacity() - buffers_.size()), std::min<std::size_t>(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. { BOOST_ASIO_HANDLER_LOCATION(( __FILE__, __LINE__, "async_read_until")); stream_.async_read_some(buffers_.prepare(bytes_to_read), BOOST_ASIO_MOVE_CAST(read_until_match_op_v1)(*this)); } return; default: buffers_.commit(bytes_transferred); if (ec || bytes_transferred == 0) break; if (this->cancelled() != cancellation_type::none) { ec = error::operation_aborted; break; } } const boost::system::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_; BOOST_ASIO_MOVE_OR_LVALUE(ReadHandler)(handler_)(result_ec, result_n); } } //private: AsyncReadStream& stream_; DynamicBuffer_v1 buffers_; MatchCondition match_condition_; int start_; std::size_t search_position_; ReadHandler handler_; }; template <typename AsyncReadStream, typename DynamicBuffer_v1, typename MatchCondition, typename ReadHandler> inline asio_handler_allocate_is_deprecated asio_handler_allocate(std::size_t size, read_until_match_op_v1<AsyncReadStream, DynamicBuffer_v1, MatchCondition, ReadHandler>* this_handler) { #if defined(BOOST_ASIO_NO_DEPRECATED) boost_asio_handler_alloc_helpers::allocate(size, this_handler->handler_); return asio_handler_allocate_is_no_longer_used(); #else // defined(BOOST_ASIO_NO_DEPRECATED) return boost_asio_handler_alloc_helpers::allocate( size, this_handler->handler_); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream, typename DynamicBuffer_v1, typename MatchCondition, typename ReadHandler> inline asio_handler_deallocate_is_deprecated asio_handler_deallocate(void* pointer, std::size_t size, read_until_match_op_v1<AsyncReadStream, DynamicBuffer_v1, MatchCondition, ReadHandler>* this_handler) { boost_asio_handler_alloc_helpers::deallocate( pointer, size, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_deallocate_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream, typename DynamicBuffer_v1, typename MatchCondition, typename ReadHandler> inline bool asio_handler_is_continuation( read_until_match_op_v1<AsyncReadStream, DynamicBuffer_v1, MatchCondition, ReadHandler>* this_handler) { return this_handler->start_ == 0 ? true : boost_asio_handler_cont_helpers::is_continuation( this_handler->handler_); } template <typename Function, typename AsyncReadStream, typename DynamicBuffer_v1, typename MatchCondition, typename ReadHandler> inline asio_handler_invoke_is_deprecated asio_handler_invoke(Function& function, read_until_match_op_v1<AsyncReadStream, DynamicBuffer_v1, MatchCondition, ReadHandler>* this_handler) { boost_asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename Function, typename AsyncReadStream, typename DynamicBuffer_v1, typename MatchCondition, typename ReadHandler> inline asio_handler_invoke_is_deprecated asio_handler_invoke(const Function& function, read_until_match_op_v1<AsyncReadStream, DynamicBuffer_v1, MatchCondition, ReadHandler>* this_handler) { boost_asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream> 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 BOOST_ASIO_NOEXCEPT { return stream_.get_executor(); } template <typename ReadHandler, typename DynamicBuffer_v1, typename MatchCondition> void operator()(BOOST_ASIO_MOVE_ARG(ReadHandler) handler, BOOST_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. BOOST_ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; non_const_lvalue<ReadHandler> handler2(handler); read_until_match_op_v1<AsyncReadStream, typename decay<DynamicBuffer_v1>::type, MatchCondition, typename decay<ReadHandler>::type>( stream_, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), match_condition, handler2.value)(boost::system::error_code(), 0, 1); } private: AsyncReadStream& stream_; }; } // namespace detail #if !defined(GENERATING_DOCUMENTATION) template <template <typename, typename> class Associator, typename AsyncReadStream, typename DynamicBuffer_v1, typename MatchCondition, typename ReadHandler, typename DefaultCandidate> struct associator<Associator, detail::read_until_match_op_v1<AsyncReadStream, DynamicBuffer_v1, MatchCondition, ReadHandler>, DefaultCandidate> : Associator<ReadHandler, DefaultCandidate> { static typename Associator<ReadHandler, DefaultCandidate>::type get( const detail::read_until_match_op_v1<AsyncReadStream, DynamicBuffer_v1, MatchCondition, ReadHandler>& h, const DefaultCandidate& c = DefaultCandidate()) BOOST_ASIO_NOEXCEPT { return Associator<ReadHandler, DefaultCandidate>::get(h.handler_, c); } }; #endif // !defined(GENERATING_DOCUMENTATION) template <typename AsyncReadStream, typename DynamicBuffer_v1, typename MatchCondition, BOOST_ASIO_COMPLETION_TOKEN_FOR(void (boost::system::error_code, std::size_t)) ReadHandler> BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (boost::system::error_code, std::size_t)) async_read_until(AsyncReadStream& s, BOOST_ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, MatchCondition match_condition, BOOST_ASIO_MOVE_ARG(ReadHandler) handler, typename constraint< is_match_condition<MatchCondition>::value >::type, typename constraint< is_dynamic_buffer_v1<typename decay<DynamicBuffer_v1>::type>::value >::type, typename constraint< !is_dynamic_buffer_v2<typename decay<DynamicBuffer_v1>::type>::value >::type) { return async_initiate<ReadHandler, void (boost::system::error_code, std::size_t)>( detail::initiate_async_read_until_match_v1<AsyncReadStream>(s), handler, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), match_condition); } #if !defined(BOOST_ASIO_NO_IOSTREAM) template <typename AsyncReadStream, typename Allocator, BOOST_ASIO_COMPLETION_TOKEN_FOR(void (boost::system::error_code, std::size_t)) ReadHandler> inline BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (boost::system::error_code, std::size_t)) async_read_until(AsyncReadStream& s, boost::asio::basic_streambuf<Allocator>& b, char delim, BOOST_ASIO_MOVE_ARG(ReadHandler) handler) { return async_read_until(s, basic_streambuf_ref<Allocator>(b), delim, BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)); } template <typename AsyncReadStream, typename Allocator, BOOST_ASIO_COMPLETION_TOKEN_FOR(void (boost::system::error_code, std::size_t)) ReadHandler> inline BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (boost::system::error_code, std::size_t)) async_read_until(AsyncReadStream& s, boost::asio::basic_streambuf<Allocator>& b, BOOST_ASIO_STRING_VIEW_PARAM delim, BOOST_ASIO_MOVE_ARG(ReadHandler) handler) { return async_read_until(s, basic_streambuf_ref<Allocator>(b), delim, BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)); } #if defined(BOOST_ASIO_HAS_BOOST_REGEX) template <typename AsyncReadStream, typename Allocator, BOOST_ASIO_COMPLETION_TOKEN_FOR(void (boost::system::error_code, std::size_t)) ReadHandler> inline BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (boost::system::error_code, std::size_t)) async_read_until(AsyncReadStream& s, boost::asio::basic_streambuf<Allocator>& b, const boost::regex& expr, BOOST_ASIO_MOVE_ARG(ReadHandler) handler) { return async_read_until(s, basic_streambuf_ref<Allocator>(b), expr, BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)); } #endif // defined(BOOST_ASIO_HAS_BOOST_REGEX) template <typename AsyncReadStream, typename Allocator, typename MatchCondition, BOOST_ASIO_COMPLETION_TOKEN_FOR(void (boost::system::error_code, std::size_t)) ReadHandler> inline BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (boost::system::error_code, std::size_t)) async_read_until(AsyncReadStream& s, boost::asio::basic_streambuf<Allocator>& b, MatchCondition match_condition, BOOST_ASIO_MOVE_ARG(ReadHandler) handler, typename constraint<is_match_condition<MatchCondition>::value>::type) { return async_read_until(s, basic_streambuf_ref<Allocator>(b), match_condition, BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)); } #endif // !defined(BOOST_ASIO_NO_IOSTREAM) #endif // !defined(BOOST_ASIO_NO_EXTENSIONS) #endif // !defined(BOOST_ASIO_NO_DYNAMIC_BUFFER_V1) namespace detail { template <typename AsyncReadStream, typename DynamicBuffer_v2, typename ReadHandler> class read_until_delim_op_v2 : public base_from_cancellation_state<ReadHandler> { public: template <typename BufferSequence> read_until_delim_op_v2(AsyncReadStream& stream, BOOST_ASIO_MOVE_ARG(BufferSequence) buffers, char delim, ReadHandler& handler) : base_from_cancellation_state<ReadHandler>( handler, enable_partial_cancellation()), stream_(stream), buffers_(BOOST_ASIO_MOVE_CAST(BufferSequence)(buffers)), delim_(delim), start_(0), search_position_(0), bytes_to_read_(0), handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)) { } #if defined(BOOST_ASIO_HAS_MOVE) read_until_delim_op_v2(const read_until_delim_op_v2& other) : base_from_cancellation_state<ReadHandler>(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) : base_from_cancellation_state<ReadHandler>( BOOST_ASIO_MOVE_CAST(base_from_cancellation_state< ReadHandler>)(other)), stream_(other.stream_), buffers_(BOOST_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_(BOOST_ASIO_MOVE_CAST(ReadHandler)(other.handler_)) { } #endif // defined(BOOST_ASIO_HAS_MOVE) void operator()(boost::system::error_code ec, std::size_t bytes_transferred, int start = 0) { const std::size_t not_found = (std::numeric_limits<std::size_t>::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<buffers_type> iterator; buffers_type data_buffers = const_cast<const DynamicBuffer_v2&>(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::size_t>( std::max<std::size_t>(512, buffers_.capacity() - buffers_.size()), std::min<std::size_t>(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_); { BOOST_ASIO_HANDLER_LOCATION(( __FILE__, __LINE__, "async_read_until")); stream_.async_read_some(buffers_.data(pos, bytes_to_read_), BOOST_ASIO_MOVE_CAST(read_until_delim_op_v2)(*this)); } return; default: buffers_.shrink(bytes_to_read_ - bytes_transferred); if (ec || bytes_transferred == 0) break; if (this->cancelled() != cancellation_type::none) { ec = error::operation_aborted; break; } } const boost::system::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_; BOOST_ASIO_MOVE_OR_LVALUE(ReadHandler)(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 <typename AsyncReadStream, typename DynamicBuffer_v2, typename ReadHandler> inline asio_handler_allocate_is_deprecated asio_handler_allocate(std::size_t size, read_until_delim_op_v2<AsyncReadStream, DynamicBuffer_v2, ReadHandler>* this_handler) { #if defined(BOOST_ASIO_NO_DEPRECATED) boost_asio_handler_alloc_helpers::allocate(size, this_handler->handler_); return asio_handler_allocate_is_no_longer_used(); #else // defined(BOOST_ASIO_NO_DEPRECATED) return boost_asio_handler_alloc_helpers::allocate( size, this_handler->handler_); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream, typename DynamicBuffer_v2, typename ReadHandler> inline asio_handler_deallocate_is_deprecated asio_handler_deallocate(void* pointer, std::size_t size, read_until_delim_op_v2<AsyncReadStream, DynamicBuffer_v2, ReadHandler>* this_handler) { boost_asio_handler_alloc_helpers::deallocate( pointer, size, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_deallocate_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream, typename DynamicBuffer_v2, typename ReadHandler> inline bool asio_handler_is_continuation( read_until_delim_op_v2<AsyncReadStream, DynamicBuffer_v2, ReadHandler>* this_handler) { return this_handler->start_ == 0 ? true : boost_asio_handler_cont_helpers::is_continuation( this_handler->handler_); } template <typename Function, typename AsyncReadStream, typename DynamicBuffer_v2, typename ReadHandler> inline asio_handler_invoke_is_deprecated asio_handler_invoke(Function& function, read_until_delim_op_v2<AsyncReadStream, DynamicBuffer_v2, ReadHandler>* this_handler) { boost_asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename Function, typename AsyncReadStream, typename DynamicBuffer_v2, typename ReadHandler> inline asio_handler_invoke_is_deprecated asio_handler_invoke(const Function& function, read_until_delim_op_v2<AsyncReadStream, DynamicBuffer_v2, ReadHandler>* this_handler) { boost_asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream> 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 BOOST_ASIO_NOEXCEPT { return stream_.get_executor(); } template <typename ReadHandler, typename DynamicBuffer_v2> void operator()(BOOST_ASIO_MOVE_ARG(ReadHandler) handler, BOOST_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. BOOST_ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; non_const_lvalue<ReadHandler> handler2(handler); read_until_delim_op_v2<AsyncReadStream, typename decay<DynamicBuffer_v2>::type, typename decay<ReadHandler>::type>( stream_, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), delim, handler2.value)(boost::system::error_code(), 0, 1); } private: AsyncReadStream& stream_; }; } // namespace detail #if !defined(GENERATING_DOCUMENTATION) template <template <typename, typename> class Associator, typename AsyncReadStream, typename DynamicBuffer_v2, typename ReadHandler, typename DefaultCandidate> struct associator<Associator, detail::read_until_delim_op_v2<AsyncReadStream, DynamicBuffer_v2, ReadHandler>, DefaultCandidate> : Associator<ReadHandler, DefaultCandidate> { static typename Associator<ReadHandler, DefaultCandidate>::type get( const detail::read_until_delim_op_v2<AsyncReadStream, DynamicBuffer_v2, ReadHandler>& h, const DefaultCandidate& c = DefaultCandidate()) BOOST_ASIO_NOEXCEPT { return Associator<ReadHandler, DefaultCandidate>::get(h.handler_, c); } }; #endif // !defined(GENERATING_DOCUMENTATION) template <typename AsyncReadStream, typename DynamicBuffer_v2, BOOST_ASIO_COMPLETION_TOKEN_FOR(void (boost::system::error_code, std::size_t)) ReadHandler> BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (boost::system::error_code, std::size_t)) async_read_until(AsyncReadStream& s, DynamicBuffer_v2 buffers, char delim, BOOST_ASIO_MOVE_ARG(ReadHandler) handler, typename constraint< is_dynamic_buffer_v2<DynamicBuffer_v2>::value >::type) { return async_initiate<ReadHandler, void (boost::system::error_code, std::size_t)>( detail::initiate_async_read_until_delim_v2<AsyncReadStream>(s), handler, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), delim); } namespace detail { template <typename AsyncReadStream, typename DynamicBuffer_v2, typename ReadHandler> class read_until_delim_string_op_v2 : public base_from_cancellation_state<ReadHandler> { public: template <typename BufferSequence> read_until_delim_string_op_v2(AsyncReadStream& stream, BOOST_ASIO_MOVE_ARG(BufferSequence) buffers, const std::string& delim, ReadHandler& handler) : base_from_cancellation_state<ReadHandler>( handler, enable_partial_cancellation()), stream_(stream), buffers_(BOOST_ASIO_MOVE_CAST(BufferSequence)(buffers)), delim_(delim), start_(0), search_position_(0), bytes_to_read_(0), handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)) { } #if defined(BOOST_ASIO_HAS_MOVE) read_until_delim_string_op_v2(const read_until_delim_string_op_v2& other) : base_from_cancellation_state<ReadHandler>(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) : base_from_cancellation_state<ReadHandler>( BOOST_ASIO_MOVE_CAST(base_from_cancellation_state< ReadHandler>)(other)), stream_(other.stream_), buffers_(BOOST_ASIO_MOVE_CAST(DynamicBuffer_v2)(other.buffers_)), delim_(BOOST_ASIO_MOVE_CAST(std::string)(other.delim_)), start_(other.start_), search_position_(other.search_position_), bytes_to_read_(other.bytes_to_read_), handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(other.handler_)) { } #endif // defined(BOOST_ASIO_HAS_MOVE) void operator()(boost::system::error_code ec, std::size_t bytes_transferred, int start = 0) { const std::size_t not_found = (std::numeric_limits<std::size_t>::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<buffers_type> iterator; buffers_type data_buffers = const_cast<const DynamicBuffer_v2&>(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<iterator, bool> 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::size_t>( std::max<std::size_t>(512, buffers_.capacity() - buffers_.size()), std::min<std::size_t>(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_); { BOOST_ASIO_HANDLER_LOCATION(( __FILE__, __LINE__, "async_read_until")); stream_.async_read_some(buffers_.data(pos, bytes_to_read_), BOOST_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; if (this->cancelled() != cancellation_type::none) { ec = error::operation_aborted; break; } } const boost::system::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_; BOOST_ASIO_MOVE_OR_LVALUE(ReadHandler)(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 <typename AsyncReadStream, typename DynamicBuffer_v2, typename ReadHandler> inline asio_handler_allocate_is_deprecated asio_handler_allocate(std::size_t size, read_until_delim_string_op_v2<AsyncReadStream, DynamicBuffer_v2, ReadHandler>* this_handler) { #if defined(BOOST_ASIO_NO_DEPRECATED) boost_asio_handler_alloc_helpers::allocate(size, this_handler->handler_); return asio_handler_allocate_is_no_longer_used(); #else // defined(BOOST_ASIO_NO_DEPRECATED) return boost_asio_handler_alloc_helpers::allocate( size, this_handler->handler_); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream, typename DynamicBuffer_v2, typename ReadHandler> inline asio_handler_deallocate_is_deprecated asio_handler_deallocate(void* pointer, std::size_t size, read_until_delim_string_op_v2<AsyncReadStream, DynamicBuffer_v2, ReadHandler>* this_handler) { boost_asio_handler_alloc_helpers::deallocate( pointer, size, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_deallocate_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream, typename DynamicBuffer_v2, typename ReadHandler> inline bool asio_handler_is_continuation( read_until_delim_string_op_v2<AsyncReadStream, DynamicBuffer_v2, ReadHandler>* this_handler) { return this_handler->start_ == 0 ? true : boost_asio_handler_cont_helpers::is_continuation( this_handler->handler_); } template <typename Function, typename AsyncReadStream, typename DynamicBuffer_v2, typename ReadHandler> inline asio_handler_invoke_is_deprecated asio_handler_invoke(Function& function, read_until_delim_string_op_v2<AsyncReadStream, DynamicBuffer_v2, ReadHandler>* this_handler) { boost_asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename Function, typename AsyncReadStream, typename DynamicBuffer_v2, typename ReadHandler> inline asio_handler_invoke_is_deprecated asio_handler_invoke(const Function& function, read_until_delim_string_op_v2<AsyncReadStream, DynamicBuffer_v2, ReadHandler>* this_handler) { boost_asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream> 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 BOOST_ASIO_NOEXCEPT { return stream_.get_executor(); } template <typename ReadHandler, typename DynamicBuffer_v2> void operator()(BOOST_ASIO_MOVE_ARG(ReadHandler) handler, BOOST_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. BOOST_ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; non_const_lvalue<ReadHandler> handler2(handler); read_until_delim_string_op_v2<AsyncReadStream, typename decay<DynamicBuffer_v2>::type, typename decay<ReadHandler>::type>( stream_, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), delim, handler2.value)(boost::system::error_code(), 0, 1); } private: AsyncReadStream& stream_; }; } // namespace detail #if !defined(GENERATING_DOCUMENTATION) template <template <typename, typename> class Associator, typename AsyncReadStream, typename DynamicBuffer_v2, typename ReadHandler, typename DefaultCandidate> struct associator<Associator, detail::read_until_delim_string_op_v2<AsyncReadStream, DynamicBuffer_v2, ReadHandler>, DefaultCandidate> : Associator<ReadHandler, DefaultCandidate> { static typename Associator<ReadHandler, DefaultCandidate>::type get( const detail::read_until_delim_string_op_v2<AsyncReadStream, DynamicBuffer_v2, ReadHandler>& h, const DefaultCandidate& c = DefaultCandidate()) BOOST_ASIO_NOEXCEPT { return Associator<ReadHandler, DefaultCandidate>::get(h.handler_, c); } }; #endif // !defined(GENERATING_DOCUMENTATION) template <typename AsyncReadStream, typename DynamicBuffer_v2, BOOST_ASIO_COMPLETION_TOKEN_FOR(void (boost::system::error_code, std::size_t)) ReadHandler> BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (boost::system::error_code, std::size_t)) async_read_until(AsyncReadStream& s, DynamicBuffer_v2 buffers, BOOST_ASIO_STRING_VIEW_PARAM delim, BOOST_ASIO_MOVE_ARG(ReadHandler) handler, typename constraint< is_dynamic_buffer_v2<DynamicBuffer_v2>::value >::type) { return async_initiate<ReadHandler, void (boost::system::error_code, std::size_t)>( detail::initiate_async_read_until_delim_string_v2<AsyncReadStream>(s), handler, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), static_cast<std::string>(delim)); } #if !defined(BOOST_ASIO_NO_EXTENSIONS) #if defined(BOOST_ASIO_HAS_BOOST_REGEX) namespace detail { template <typename AsyncReadStream, typename DynamicBuffer_v2, typename RegEx, typename ReadHandler> class read_until_expr_op_v2 : public base_from_cancellation_state<ReadHandler> { public: template <typename BufferSequence> read_until_expr_op_v2(AsyncReadStream& stream, BOOST_ASIO_MOVE_ARG(BufferSequence) buffers, const boost::regex& expr, ReadHandler& handler) : base_from_cancellation_state<ReadHandler>( handler, enable_partial_cancellation()), stream_(stream), buffers_(BOOST_ASIO_MOVE_CAST(BufferSequence)(buffers)), expr_(expr), start_(0), search_position_(0), bytes_to_read_(0), handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)) { } #if defined(BOOST_ASIO_HAS_MOVE) read_until_expr_op_v2(const read_until_expr_op_v2& other) : base_from_cancellation_state<ReadHandler>(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) : base_from_cancellation_state<ReadHandler>( BOOST_ASIO_MOVE_CAST(base_from_cancellation_state< ReadHandler>)(other)), stream_(other.stream_), buffers_(BOOST_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_(BOOST_ASIO_MOVE_CAST(ReadHandler)(other.handler_)) { } #endif // defined(BOOST_ASIO_HAS_MOVE) void operator()(boost::system::error_code ec, std::size_t bytes_transferred, int start = 0) { const std::size_t not_found = (std::numeric_limits<std::size_t>::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<buffers_type> iterator; buffers_type data_buffers = const_cast<const DynamicBuffer_v2&>(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<iterator, typename std::vector<boost::sub_match<iterator> >::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::size_t>( std::max<std::size_t>(512, buffers_.capacity() - buffers_.size()), std::min<std::size_t>(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_); { BOOST_ASIO_HANDLER_LOCATION(( __FILE__, __LINE__, "async_read_until")); stream_.async_read_some(buffers_.data(pos, bytes_to_read_), BOOST_ASIO_MOVE_CAST(read_until_expr_op_v2)(*this)); } return; default: buffers_.shrink(bytes_to_read_ - bytes_transferred); if (ec || bytes_transferred == 0) break; if (this->cancelled() != cancellation_type::none) { ec = error::operation_aborted; break; } } const boost::system::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_; BOOST_ASIO_MOVE_OR_LVALUE(ReadHandler)(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 <typename AsyncReadStream, typename DynamicBuffer_v2, typename RegEx, typename ReadHandler> inline asio_handler_allocate_is_deprecated asio_handler_allocate(std::size_t size, read_until_expr_op_v2<AsyncReadStream, DynamicBuffer_v2, RegEx, ReadHandler>* this_handler) { #if defined(BOOST_ASIO_NO_DEPRECATED) boost_asio_handler_alloc_helpers::allocate(size, this_handler->handler_); return asio_handler_allocate_is_no_longer_used(); #else // defined(BOOST_ASIO_NO_DEPRECATED) return boost_asio_handler_alloc_helpers::allocate( size, this_handler->handler_); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream, typename DynamicBuffer_v2, typename RegEx, typename ReadHandler> inline asio_handler_deallocate_is_deprecated asio_handler_deallocate(void* pointer, std::size_t size, read_until_expr_op_v2<AsyncReadStream, DynamicBuffer_v2, RegEx, ReadHandler>* this_handler) { boost_asio_handler_alloc_helpers::deallocate( pointer, size, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_deallocate_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream, typename DynamicBuffer_v2, typename RegEx, typename ReadHandler> inline bool asio_handler_is_continuation( read_until_expr_op_v2<AsyncReadStream, DynamicBuffer_v2, RegEx, ReadHandler>* this_handler) { return this_handler->start_ == 0 ? true : boost_asio_handler_cont_helpers::is_continuation( this_handler->handler_); } template <typename Function, typename AsyncReadStream, typename DynamicBuffer_v2, typename RegEx, typename ReadHandler> inline asio_handler_invoke_is_deprecated asio_handler_invoke(Function& function, read_until_expr_op_v2<AsyncReadStream, DynamicBuffer_v2, RegEx, ReadHandler>* this_handler) { boost_asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename Function, typename AsyncReadStream, typename DynamicBuffer_v2, typename RegEx, typename ReadHandler> inline asio_handler_invoke_is_deprecated asio_handler_invoke(const Function& function, read_until_expr_op_v2<AsyncReadStream, DynamicBuffer_v2, RegEx, ReadHandler>* this_handler) { boost_asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream> 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 BOOST_ASIO_NOEXCEPT { return stream_.get_executor(); } template <typename ReadHandler, typename DynamicBuffer_v2, typename RegEx> void operator()(BOOST_ASIO_MOVE_ARG(ReadHandler) handler, BOOST_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. BOOST_ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; non_const_lvalue<ReadHandler> handler2(handler); read_until_expr_op_v2<AsyncReadStream, typename decay<DynamicBuffer_v2>::type, RegEx, typename decay<ReadHandler>::type>( stream_, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), expr, handler2.value)(boost::system::error_code(), 0, 1); } private: AsyncReadStream& stream_; }; } // namespace detail #if !defined(GENERATING_DOCUMENTATION) template <template <typename, typename> class Associator, typename AsyncReadStream, typename DynamicBuffer_v2, typename RegEx, typename ReadHandler, typename DefaultCandidate> struct associator<Associator, detail::read_until_expr_op_v2<AsyncReadStream, DynamicBuffer_v2, RegEx, ReadHandler>, DefaultCandidate> : Associator<ReadHandler, DefaultCandidate> { static typename Associator<ReadHandler, DefaultCandidate>::type get( const detail::read_until_expr_op_v2<AsyncReadStream, DynamicBuffer_v2, RegEx, ReadHandler>& h, const DefaultCandidate& c = DefaultCandidate()) BOOST_ASIO_NOEXCEPT { return Associator<ReadHandler, DefaultCandidate>::get(h.handler_, c); } }; #endif // !defined(GENERATING_DOCUMENTATION) template <typename AsyncReadStream, typename DynamicBuffer_v2, BOOST_ASIO_COMPLETION_TOKEN_FOR(void (boost::system::error_code, std::size_t)) ReadHandler> BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (boost::system::error_code, std::size_t)) async_read_until(AsyncReadStream& s, DynamicBuffer_v2 buffers, const boost::regex& expr, BOOST_ASIO_MOVE_ARG(ReadHandler) handler, typename constraint< is_dynamic_buffer_v2<DynamicBuffer_v2>::value >::type) { return async_initiate<ReadHandler, void (boost::system::error_code, std::size_t)>( detail::initiate_async_read_until_expr_v2<AsyncReadStream>(s), handler, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), expr); } #endif // defined(BOOST_ASIO_HAS_BOOST_REGEX) namespace detail { template <typename AsyncReadStream, typename DynamicBuffer_v2, typename MatchCondition, typename ReadHandler> class read_until_match_op_v2 : public base_from_cancellation_state<ReadHandler> { public: template <typename BufferSequence> read_until_match_op_v2(AsyncReadStream& stream, BOOST_ASIO_MOVE_ARG(BufferSequence) buffers, MatchCondition match_condition, ReadHandler& handler) : base_from_cancellation_state<ReadHandler>( handler, enable_partial_cancellation()), stream_(stream), buffers_(BOOST_ASIO_MOVE_CAST(BufferSequence)(buffers)), match_condition_(match_condition), start_(0), search_position_(0), bytes_to_read_(0), handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)) { } #if defined(BOOST_ASIO_HAS_MOVE) read_until_match_op_v2(const read_until_match_op_v2& other) : base_from_cancellation_state<ReadHandler>(other), stream_(other.stream_), buffers_(other.buffers_), match_condition_(other.match_condition_), start_(other.start_), search_position_(other.search_position_), bytes_to_read_(other.bytes_to_read_), handler_(other.handler_) { } read_until_match_op_v2(read_until_match_op_v2&& other) : base_from_cancellation_state<ReadHandler>( BOOST_ASIO_MOVE_CAST(base_from_cancellation_state< ReadHandler>)(other)), stream_(other.stream_), buffers_(BOOST_ASIO_MOVE_CAST(DynamicBuffer_v2)(other.buffers_)), match_condition_(other.match_condition_), start_(other.start_), search_position_(other.search_position_), bytes_to_read_(other.bytes_to_read_), handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(other.handler_)) { } #endif // defined(BOOST_ASIO_HAS_MOVE) void operator()(boost::system::error_code ec, std::size_t bytes_transferred, int start = 0) { const std::size_t not_found = (std::numeric_limits<std::size_t>::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<buffers_type> iterator; buffers_type data_buffers = const_cast<const DynamicBuffer_v2&>(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<iterator, bool> 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::size_t>( std::max<std::size_t>(512, buffers_.capacity() - buffers_.size()), std::min<std::size_t>(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_); { BOOST_ASIO_HANDLER_LOCATION(( __FILE__, __LINE__, "async_read_until")); stream_.async_read_some(buffers_.data(pos, bytes_to_read_), BOOST_ASIO_MOVE_CAST(read_until_match_op_v2)(*this)); } return; default: buffers_.shrink(bytes_to_read_ - bytes_transferred); if (ec || bytes_transferred == 0) break; if (this->cancelled() != cancellation_type::none) { ec = error::operation_aborted; break; } } const boost::system::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_; BOOST_ASIO_MOVE_OR_LVALUE(ReadHandler)(handler_)(result_ec, result_n); } } //private: AsyncReadStream& stream_; DynamicBuffer_v2 buffers_; MatchCondition match_condition_; int start_; std::size_t search_position_; std::size_t bytes_to_read_; ReadHandler handler_; }; template <typename AsyncReadStream, typename DynamicBuffer_v2, typename MatchCondition, typename ReadHandler> inline asio_handler_allocate_is_deprecated asio_handler_allocate(std::size_t size, read_until_match_op_v2<AsyncReadStream, DynamicBuffer_v2, MatchCondition, ReadHandler>* this_handler) { #if defined(BOOST_ASIO_NO_DEPRECATED) boost_asio_handler_alloc_helpers::allocate(size, this_handler->handler_); return asio_handler_allocate_is_no_longer_used(); #else // defined(BOOST_ASIO_NO_DEPRECATED) return boost_asio_handler_alloc_helpers::allocate( size, this_handler->handler_); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream, typename DynamicBuffer_v2, typename MatchCondition, typename ReadHandler> inline asio_handler_deallocate_is_deprecated asio_handler_deallocate(void* pointer, std::size_t size, read_until_match_op_v2<AsyncReadStream, DynamicBuffer_v2, MatchCondition, ReadHandler>* this_handler) { boost_asio_handler_alloc_helpers::deallocate( pointer, size, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_deallocate_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream, typename DynamicBuffer_v2, typename MatchCondition, typename ReadHandler> inline bool asio_handler_is_continuation( read_until_match_op_v2<AsyncReadStream, DynamicBuffer_v2, MatchCondition, ReadHandler>* this_handler) { return this_handler->start_ == 0 ? true : boost_asio_handler_cont_helpers::is_continuation( this_handler->handler_); } template <typename Function, typename AsyncReadStream, typename DynamicBuffer_v2, typename MatchCondition, typename ReadHandler> inline asio_handler_invoke_is_deprecated asio_handler_invoke(Function& function, read_until_match_op_v2<AsyncReadStream, DynamicBuffer_v2, MatchCondition, ReadHandler>* this_handler) { boost_asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename Function, typename AsyncReadStream, typename DynamicBuffer_v2, typename MatchCondition, typename ReadHandler> inline asio_handler_invoke_is_deprecated asio_handler_invoke(const Function& function, read_until_match_op_v2<AsyncReadStream, DynamicBuffer_v2, MatchCondition, ReadHandler>* this_handler) { boost_asio_handler_invoke_helpers::invoke( function, this_handler->handler_); #if defined(BOOST_ASIO_NO_DEPRECATED) return asio_handler_invoke_is_no_longer_used(); #endif // defined(BOOST_ASIO_NO_DEPRECATED) } template <typename AsyncReadStream> class initiate_async_read_until_match_v2 { public: typedef typename AsyncReadStream::executor_type executor_type; explicit initiate_async_read_until_match_v2(AsyncReadStream& stream) : stream_(stream) { } executor_type get_executor() const BOOST_ASIO_NOEXCEPT { return stream_.get_executor(); } template <typename ReadHandler, typename DynamicBuffer_v2, typename MatchCondition> void operator()(BOOST_ASIO_MOVE_ARG(ReadHandler) handler, BOOST_ASIO_MOVE_ARG(DynamicBuffer_v2) 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. BOOST_ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; non_const_lvalue<ReadHandler> handler2(handler); read_until_match_op_v2<AsyncReadStream, typename decay<DynamicBuffer_v2>::type, MatchCondition, typename decay<ReadHandler>::type>( stream_, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), match_condition, handler2.value)(boost::system::error_code(), 0, 1); } private: AsyncReadStream& stream_; }; } // namespace detail #if !defined(GENERATING_DOCUMENTATION) template <template <typename, typename> class Associator, typename AsyncReadStream, typename DynamicBuffer_v2, typename MatchCondition, typename ReadHandler, typename DefaultCandidate> struct associator<Associator, detail::read_until_match_op_v2<AsyncReadStream, DynamicBuffer_v2, MatchCondition, ReadHandler>, DefaultCandidate> : Associator<ReadHandler, DefaultCandidate> { static typename Associator<ReadHandler, DefaultCandidate>::type get( const detail::read_until_match_op_v2<AsyncReadStream, DynamicBuffer_v2, MatchCondition, ReadHandler>& h, const DefaultCandidate& c = DefaultCandidate()) BOOST_ASIO_NOEXCEPT { return Associator<ReadHandler, DefaultCandidate>::get(h.handler_, c); } }; #endif // !defined(GENERATING_DOCUMENTATION) template <typename AsyncReadStream, typename DynamicBuffer_v2, typename MatchCondition, BOOST_ASIO_COMPLETION_TOKEN_FOR(void (boost::system::error_code, std::size_t)) ReadHandler> BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (boost::system::error_code, std::size_t)) async_read_until(AsyncReadStream& s, DynamicBuffer_v2 buffers, MatchCondition match_condition, BOOST_ASIO_MOVE_ARG(ReadHandler) handler, typename constraint< is_match_condition<MatchCondition>::value >::type, typename constraint< is_dynamic_buffer_v2<DynamicBuffer_v2>::value >::type) { return async_initiate<ReadHandler, void (boost::system::error_code, std::size_t)>( detail::initiate_async_read_until_match_v2<AsyncReadStream>(s), handler, BOOST_ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), match_condition); } #endif // !defined(BOOST_ASIO_NO_EXTENSIONS) } // namespace asio } // namespace boost #include <boost/asio/detail/pop_options.hpp> #endif // BOOST_ASIO_IMPL_READ_UNTIL_HPP