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77dec8e703
Fix compile error in regex overload of async_read_until.hpp. Fixes #5688 Explicitly specify the signal() function from the global namespace. Fixes #5722 Don't read the clock unless the heap is non-empty. Change the SSL buffers sizes so that they're large enough to hold a complete TLS record. Fixes #5854 Make sure the synchronous null_buffers operations obey the user's non_blocking setting. Fixes #5756 Set size of select fd_set at runtime when using Windows. Disable warning due to const qualifier being applied to function type. Fix crash due to gcc_x86_fenced_block that shows up when using the Intel C++ compiler. Fixes #5763 Specialise operations for buffer sequences that are arrays of exactly two buffers. Initialise all OpenSSL algorithms. Fix error mapping when session is gracefully shut down. Various performance improvements: * Split the task_io_service's run and poll code. * Use thread-local operation queues in single-threaded use cases (i.e. concurrency_hint is 1) to eliminate a lock/unlock pair. * Only fence block exit when a handler is being run directly out of the io_service. * Prefer x86 mfence-based fenced block when available. * Use a plain ol' long for the atomic_count when all thread support is disabled. * Allow some epoll_reactor speculative operations to be performed without holding the lock. * Improve locality of reference by performing an epoll_reactor's I/O operation immediately before the corresponding handler is called. This also improves scalability across CPUs when multiple threads are running the io_service. * Pass same error_code variable through to each operation's complete() function. * Optimise creation of and access to the io_service implementation. Remove unused state in HTTP server examples. Add latency test programs. [SVN r74863]
96 lines
2.3 KiB
C++
96 lines
2.3 KiB
C++
//
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// request_parser.hpp
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// ~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef HTTP_SERVER3_REQUEST_PARSER_HPP
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#define HTTP_SERVER3_REQUEST_PARSER_HPP
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#include <boost/logic/tribool.hpp>
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#include <boost/tuple/tuple.hpp>
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namespace http {
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namespace server3 {
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struct request;
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/// Parser for incoming requests.
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class request_parser
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{
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public:
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/// Construct ready to parse the request method.
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request_parser();
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/// Reset to initial parser state.
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void reset();
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/// Parse some data. The tribool return value is true when a complete request
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/// has been parsed, false if the data is invalid, indeterminate when more
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/// data is required. The InputIterator return value indicates how much of the
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/// input has been consumed.
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template <typename InputIterator>
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boost::tuple<boost::tribool, InputIterator> parse(request& req,
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InputIterator begin, InputIterator end)
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{
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while (begin != end)
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{
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boost::tribool result = consume(req, *begin++);
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if (result || !result)
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return boost::make_tuple(result, begin);
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}
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boost::tribool result = boost::indeterminate;
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return boost::make_tuple(result, begin);
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}
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private:
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/// Handle the next character of input.
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boost::tribool consume(request& req, char input);
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/// Check if a byte is an HTTP character.
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static bool is_char(int c);
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/// Check if a byte is an HTTP control character.
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static bool is_ctl(int c);
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/// Check if a byte is defined as an HTTP tspecial character.
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static bool is_tspecial(int c);
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/// Check if a byte is a digit.
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static bool is_digit(int c);
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/// The current state of the parser.
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enum state
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{
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method_start,
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method,
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uri,
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http_version_h,
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http_version_t_1,
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http_version_t_2,
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http_version_p,
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http_version_slash,
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http_version_major_start,
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http_version_major,
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http_version_minor_start,
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http_version_minor,
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expecting_newline_1,
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header_line_start,
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header_lws,
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header_name,
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space_before_header_value,
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header_value,
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expecting_newline_2,
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expecting_newline_3
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} state_;
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};
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} // namespace server3
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} // namespace http
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#endif // HTTP_SERVER3_REQUEST_PARSER_HPP
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