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author | Remko Tronçon <git@el-tramo.be> | 2010-02-11 12:14:00 (GMT) |
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committer | Remko Tronçon <git@el-tramo.be> | 2010-02-11 12:14:00 (GMT) |
commit | 0efa7c32aaf21a29b42b5926cc116007056843be (patch) | |
tree | 882f663a5dd0e65694bf6077b71086dd77fd7ff8 /3rdParty/Boost/boost/asio/read_until.hpp | |
parent | 1d20eabbc32274b491b4c2bedf73d19933d97bfd (diff) | |
download | swift-contrib-0efa7c32aaf21a29b42b5926cc116007056843be.zip swift-contrib-0efa7c32aaf21a29b42b5926cc116007056843be.tar.bz2 |
Moved some modules into separate git modules.
Diffstat (limited to '3rdParty/Boost/boost/asio/read_until.hpp')
m--------- | 3rdParty/Boost | 0 | ||||
-rw-r--r-- | 3rdParty/Boost/boost/asio/read_until.hpp | 841 |
2 files changed, 0 insertions, 841 deletions
diff --git a/3rdParty/Boost b/3rdParty/Boost new file mode 160000 +Subproject 3bbdbc8cf1996f23d9a366da8bac0f97be6ad79 diff --git a/3rdParty/Boost/boost/asio/read_until.hpp b/3rdParty/Boost/boost/asio/read_until.hpp deleted file mode 100644 index 6144e60..0000000 --- a/3rdParty/Boost/boost/asio/read_until.hpp +++ /dev/null @@ -1,841 +0,0 @@ -// -// read_until.hpp -// ~~~~~~~~~~~~~~ -// -// Copyright (c) 2003-2008 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_READ_UNTIL_HPP -#define BOOST_ASIO_READ_UNTIL_HPP - -#if defined(_MSC_VER) && (_MSC_VER >= 1200) -# pragma once -#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) - -#include <boost/asio/detail/push_options.hpp> - -#include <boost/asio/detail/push_options.hpp> -#include <cstddef> -#include <boost/config.hpp> -#include <boost/regex.hpp> -#include <boost/type_traits/is_function.hpp> -#include <boost/type_traits/remove_pointer.hpp> -#include <boost/utility/enable_if.hpp> -#include <boost/detail/workaround.hpp> -#include <string> -#include <boost/asio/detail/pop_options.hpp> - -#include <boost/asio/basic_streambuf.hpp> -#include <boost/asio/error.hpp> - -namespace boost { -namespace asio { - -namespace detail -{ -#if BOOST_WORKAROUND(__CODEGEARC__, BOOST_TESTED_AT(0x610)) - template <typename T> - struct has_result_type - { - template <typename U> struct inner - { - struct big { char a[100]; }; - static big helper(U, ...); - static char helper(U, typename U::result_type* = 0); - }; - static const T& ref(); - enum { value = (sizeof((inner<const T&>::helper)((ref)())) == 1) }; - }; -#else // BOOST_WORKAROUND(__CODEGEARC__, BOOST_TESTED_AT(0x610)) - template <typename T> - struct has_result_type - { - struct big { char a[100]; }; - template <typename U> static big helper(U, ...); - template <typename U> static char helper(U, typename U::result_type* = 0); - static const T& ref(); - enum { value = (sizeof((helper)((ref)())) == 1) }; - }; -#endif // BOOST_WORKAROUND(__CODEGEARC__, BOOST_TESTED_AT(0x610)) -} // namespace detail - -/// Type trait used to determine whether a type can be used as a match condition -/// function with read_until and async_read_until. -template <typename T> -struct is_match_condition -{ -#if defined(GENERATING_DOCUMENTATION) - /// The value member is true if the type may be used as a match condition. - static const bool value; -#else - enum - { - value = boost::is_function<typename boost::remove_pointer<T>::type>::value - || detail::has_result_type<T>::value - }; -#endif -}; - -/** - * @defgroup read_until boost::asio::read_until - * - * @brief Read data into a streambuf until it contains a delimiter, matches a - * regular expression, or a function object indicates a match. - */ -/*@{*/ - -/// Read data into a streambuf until it contains a specified delimiter. -/** - * This function is used to read data into the specified streambuf until the - * streambuf's get area contains the specified delimiter. The call will block - * until one of the following conditions is true: - * - * @li The get area of the streambuf contains the specified delimiter. - * - * @li An error occurred. - * - * This operation is implemented in terms of zero or more calls to the stream's - * read_some function. If the streambuf's get area already contains the - * delimiter, the function returns immediately. - * - * @param s The stream from which the data is to be read. The type must support - * the SyncReadStream concept. - * - * @param b A streambuf object into which the data will be read. - * - * @param delim The delimiter character. - * - * @returns The number of bytes in the streambuf's get area up to and including - * the delimiter. - * - * @throws boost::system::system_error Thrown on failure. - * - * @note After a successful read_until operation, the streambuf may contain - * additional data beyond the delimiter. An application will typically leave - * that data in the streambuf for a subsequent read_until operation to examine. - * - * @par Example - * To read data into a streambuf until a newline is encountered: - * @code boost::asio::streambuf b; - * boost::asio::read_until(s, b, '\n'); - * std::istream is(&b); - * std::string line; - * std::getline(is, line); @endcode - */ -template <typename SyncReadStream, typename Allocator> -std::size_t read_until(SyncReadStream& s, - boost::asio::basic_streambuf<Allocator>& b, char delim); - -/// Read data into a streambuf until it contains a specified delimiter. -/** - * This function is used to read data into the specified streambuf until the - * streambuf's get area contains the specified delimiter. The call will block - * until one of the following conditions is true: - * - * @li The get area of the streambuf contains the specified delimiter. - * - * @li An error occurred. - * - * This operation is implemented in terms of zero or more calls to the stream's - * read_some function. If the streambuf's get area already contains the - * delimiter, the function returns immediately. - * - * @param s The stream from which the data is to be read. The type must support - * the SyncReadStream concept. - * - * @param b A streambuf object into which the data will be read. - * - * @param delim The delimiter character. - * - * @param ec Set to indicate what error occurred, if any. - * - * @returns The number of bytes in the streambuf's get area up to and including - * the delimiter. Returns 0 if an error occurred. - * - * @note After a successful read_until operation, the streambuf may contain - * additional data beyond the delimiter. An application will typically leave - * that data in the streambuf for a subsequent read_until operation to examine. - */ -template <typename SyncReadStream, typename Allocator> -std::size_t read_until(SyncReadStream& s, - boost::asio::basic_streambuf<Allocator>& b, char delim, - boost::system::error_code& ec); - -/// Read data into a streambuf until it contains a specified delimiter. -/** - * This function is used to read data into the specified streambuf until the - * streambuf's get area contains the specified delimiter. The call will block - * until one of the following conditions is true: - * - * @li The get area of the streambuf contains the specified delimiter. - * - * @li An error occurred. - * - * This operation is implemented in terms of zero or more calls to the stream's - * read_some function. If the streambuf's get area already contains the - * delimiter, the function returns immediately. - * - * @param s The stream from which the data is to be read. The type must support - * the SyncReadStream concept. - * - * @param b A streambuf object into which the data will be read. - * - * @param delim The delimiter string. - * - * @returns The number of bytes in the streambuf's get area up to and including - * the delimiter. - * - * @throws boost::system::system_error Thrown on failure. - * - * @note After a successful read_until operation, the streambuf may contain - * additional data beyond the delimiter. An application will typically leave - * that data in the streambuf for a subsequent read_until operation to examine. - * - * @par Example - * To read data into a streambuf until a newline is encountered: - * @code boost::asio::streambuf b; - * boost::asio::read_until(s, b, "\r\n"); - * std::istream is(&b); - * std::string line; - * std::getline(is, line); @endcode - */ -template <typename SyncReadStream, typename Allocator> -std::size_t read_until(SyncReadStream& s, - boost::asio::basic_streambuf<Allocator>& b, const std::string& delim); - -/// Read data into a streambuf until it contains a specified delimiter. -/** - * This function is used to read data into the specified streambuf until the - * streambuf's get area contains the specified delimiter. The call will block - * until one of the following conditions is true: - * - * @li The get area of the streambuf contains the specified delimiter. - * - * @li An error occurred. - * - * This operation is implemented in terms of zero or more calls to the stream's - * read_some function. If the streambuf's get area already contains the - * delimiter, the function returns immediately. - * - * @param s The stream from which the data is to be read. The type must support - * the SyncReadStream concept. - * - * @param b A streambuf object into which the data will be read. - * - * @param delim The delimiter string. - * - * @param ec Set to indicate what error occurred, if any. - * - * @returns The number of bytes in the streambuf's get area up to and including - * the delimiter. Returns 0 if an error occurred. - * - * @note After a successful read_until operation, the streambuf may contain - * additional data beyond the delimiter. An application will typically leave - * that data in the streambuf for a subsequent read_until operation to examine. - */ -template <typename SyncReadStream, typename Allocator> -std::size_t read_until(SyncReadStream& s, - boost::asio::basic_streambuf<Allocator>& b, const std::string& delim, - boost::system::error_code& ec); - -/// Read data into a streambuf until some part of the data it contains matches -/// a regular expression. -/** - * This function is used to read data into the specified streambuf until the - * streambuf's get area contains some data that matches a regular expression. - * The call will block until one of the following conditions is true: - * - * @li A substring of the streambuf's get area matches the regular expression. - * - * @li An error occurred. - * - * This operation is implemented in terms of zero or more calls to the stream's - * read_some function. If the streambuf's get area already contains data that - * matches the regular expression, the function returns immediately. - * - * @param s The stream from which the data is to be read. The type must support - * the SyncReadStream concept. - * - * @param b A streambuf object into which the data will be read. - * - * @param expr The regular expression. - * - * @returns The number of bytes in the streambuf's get area up to and including - * the substring that matches the regular expression. - * - * @throws boost::system::system_error Thrown on failure. - * - * @note After a successful read_until operation, the streambuf may contain - * additional data beyond that which matched the regular expression. An - * application will typically leave that data in the streambuf for a subsequent - * read_until operation to examine. - * - * @par Example - * To read data into a streambuf until a CR-LF sequence is encountered: - * @code boost::asio::streambuf b; - * boost::asio::read_until(s, b, boost::regex("\r\n")); - * std::istream is(&b); - * std::string line; - * std::getline(is, line); @endcode - */ -template <typename SyncReadStream, typename Allocator> -std::size_t read_until(SyncReadStream& s, - boost::asio::basic_streambuf<Allocator>& b, const boost::regex& expr); - -/// Read data into a streambuf until some part of the data it contains matches -/// a regular expression. -/** - * This function is used to read data into the specified streambuf until the - * streambuf's get area contains some data that matches a regular expression. - * The call will block until one of the following conditions is true: - * - * @li A substring of the streambuf's get area matches the regular expression. - * - * @li An error occurred. - * - * This operation is implemented in terms of zero or more calls to the stream's - * read_some function. If the streambuf's get area already contains data that - * matches the regular expression, the function returns immediately. - * - * @param s The stream from which the data is to be read. The type must support - * the SyncReadStream concept. - * - * @param b A streambuf object into which the data will be read. - * - * @param expr The regular expression. - * - * @param ec Set to indicate what error occurred, if any. - * - * @returns The number of bytes in the streambuf's get area up to and including - * the substring that matches the regular expression. Returns 0 if an error - * occurred. - * - * @note After a successful read_until operation, the streambuf may contain - * additional data beyond that which matched the regular expression. An - * application will typically leave that data in the streambuf for a subsequent - * read_until operation to examine. - */ -template <typename SyncReadStream, typename Allocator> -std::size_t read_until(SyncReadStream& s, - boost::asio::basic_streambuf<Allocator>& b, const boost::regex& expr, - boost::system::error_code& ec); - -/// Read data into a streambuf until a function object indicates a match. -/** - * This function is used to read data into the specified streambuf until a - * user-defined match condition function object, when applied to the data - * contained in the streambuf, indicates a successful match. The call will - * block until one of the following conditions is true: - * - * @li The match condition function object returns a std::pair where the second - * element evaluates to true. - * - * @li An error occurred. - * - * This operation is implemented in terms of zero or more calls to the stream's - * read_some function. If the match condition function object already indicates - * a match, the function returns immediately. - * - * @param s The stream from which the data is to be read. The type must support - * the SyncReadStream concept. - * - * @param b A streambuf object into which the data will be read. - * - * @param match_condition The function object to be called to determine whether - * a match exists. The signature of the function object must be: - * @code pair<iterator, bool> match_condition(iterator begin, iterator end); - * @endcode - * where @c iterator represents the type: - * @code buffers_iterator<basic_streambuf<Allocator>::const_buffers_type> - * @endcode - * The iterator parameters @c begin and @c end define the range of bytes to be - * scanned to determine whether there is a match. The @c first member of the - * return value is an iterator marking one-past-the-end of the bytes that have - * been consumed by the match function. This iterator is used to calculate the - * @c begin parameter for any subsequent invocation of the match condition. The - * @c second member of the return value is true if a match has been found, false - * otherwise. - * - * @returns The number of bytes in the streambuf's get area that have been fully - * consumed by the match function. - * - * @throws boost::system::system_error Thrown on failure. - * - * @note After a successful read_until operation, the streambuf may contain - * additional data beyond that which matched the function object. An application - * will typically leave that data in the streambuf for a subsequent - * - * @note The default implementation of the @c is_match_condition type trait - * evaluates to true for function pointers and function objects with a - * @c result_type typedef. It must be specialised for other user-defined - * function objects. - * - * @par Examples - * To read data into a streambuf until whitespace is encountered: - * @code typedef boost::asio::buffers_iterator< - * boost::asio::streambuf::const_buffers_type> iterator; - * - * std::pair<iterator, bool> - * match_whitespace(iterator begin, iterator end) - * { - * iterator i = begin; - * while (i != end) - * if (std::isspace(*i++)) - * return std::make_pair(i, true); - * return std::make_pair(i, false); - * } - * ... - * boost::asio::streambuf b; - * boost::asio::read_until(s, b, match_whitespace); - * @endcode - * - * To read data into a streambuf until a matching character is found: - * @code class match_char - * { - * public: - * explicit match_char(char c) : c_(c) {} - * - * template <typename Iterator> - * std::pair<Iterator, bool> operator()( - * Iterator begin, Iterator end) const - * { - * Iterator i = begin; - * while (i != end) - * if (c_ == *i++) - * return std::make_pair(i, true); - * return std::make_pair(i, false); - * } - * - * private: - * char c_; - * }; - * - * namespace asio { - * template <> struct is_match_condition<match_char> - * : public boost::true_type {}; - * } // namespace asio - * ... - * boost::asio::streambuf b; - * boost::asio::read_until(s, b, match_char('a')); - * @endcode - */ -template <typename SyncReadStream, typename Allocator, typename MatchCondition> -std::size_t read_until(SyncReadStream& s, - boost::asio::basic_streambuf<Allocator>& b, MatchCondition match_condition, - typename boost::enable_if<is_match_condition<MatchCondition> >::type* = 0); - -/// Read data into a streambuf until a function object indicates a match. -/** - * This function is used to read data into the specified streambuf until a - * user-defined match condition function object, when applied to the data - * contained in the streambuf, indicates a successful match. The call will - * block until one of the following conditions is true: - * - * @li The match condition function object returns a std::pair where the second - * element evaluates to true. - * - * @li An error occurred. - * - * This operation is implemented in terms of zero or more calls to the stream's - * read_some function. If the match condition function object already indicates - * a match, the function returns immediately. - * - * @param s The stream from which the data is to be read. The type must support - * the SyncReadStream concept. - * - * @param b A streambuf object into which the data will be read. - * - * @param match_condition The function object to be called to determine whether - * a match exists. The signature of the function object must be: - * @code pair<iterator, bool> match_condition(iterator begin, iterator end); - * @endcode - * where @c iterator represents the type: - * @code buffers_iterator<basic_streambuf<Allocator>::const_buffers_type> - * @endcode - * The iterator parameters @c begin and @c end define the range of bytes to be - * scanned to determine whether there is a match. The @c first member of the - * return value is an iterator marking one-past-the-end of the bytes that have - * been consumed by the match function. This iterator is used to calculate the - * @c begin parameter for any subsequent invocation of the match condition. The - * @c second member of the return value is true if a match has been found, false - * otherwise. - * - * @param ec Set to indicate what error occurred, if any. - * - * @returns The number of bytes in the streambuf's get area that have been fully - * consumed by the match function. Returns 0 if an error occurred. - * - * @note After a successful read_until operation, the streambuf may contain - * additional data beyond that which matched the function object. An application - * will typically leave that data in the streambuf for a subsequent - * - * @note The default implementation of the @c is_match_condition type trait - * evaluates to true for function pointers and function objects with a - * @c result_type typedef. It must be specialised for other user-defined - * function objects. - */ -template <typename SyncReadStream, typename Allocator, typename MatchCondition> -std::size_t read_until(SyncReadStream& s, - boost::asio::basic_streambuf<Allocator>& b, - MatchCondition match_condition, boost::system::error_code& ec, - typename boost::enable_if<is_match_condition<MatchCondition> >::type* = 0); - -/*@}*/ -/** - * @defgroup async_read_until boost::asio::async_read_until - * - * @brief Start an asynchronous operation to read data into a streambuf until it - * contains a delimiter, matches a regular expression, or a function object - * indicates a match. - */ -/*@{*/ - -/// Start an asynchronous operation to read data into a streambuf until it -/// contains a specified delimiter. -/** - * This function is used to asynchronously read data into the specified - * streambuf until the streambuf's get area contains the specified delimiter. - * The function call always returns immediately. The asynchronous operation - * will continue until one of the following conditions is true: - * - * @li The get area of the streambuf contains the specified delimiter. - * - * @li An error occurred. - * - * This operation is implemented in terms of zero or more calls to the stream's - * async_read_some function. If the streambuf's get area already contains the - * delimiter, the asynchronous operation completes immediately. - * - * @param s The stream from which the data is to be read. The type must support - * the AsyncReadStream concept. - * - * @param b A streambuf object into which the data will be read. Ownership of - * the streambuf is retained by the caller, which must guarantee that it remains - * valid until the handler is called. - * - * @param delim The delimiter character. - * - * @param handler The handler to be called when the read operation completes. - * Copies will be made of the handler as required. The function signature of the - * handler must be: - * @code void handler( - * // Result of operation. - * const boost::system::error_code& error, - * - * // The number of bytes in the streambuf's get - * // area up to and including the delimiter. - * // 0 if an error occurred. - * std::size_t bytes_transferred - * ); @endcode - * Regardless of whether the asynchronous operation completes immediately or - * not, the handler will not be invoked from within this function. Invocation of - * the handler will be performed in a manner equivalent to using - * boost::asio::io_service::post(). - * - * @note After a successful async_read_until operation, the streambuf may - * contain additional data beyond the delimiter. An application will typically - * leave that data in the streambuf for a subsequent async_read_until operation - * to examine. - * - * @par Example - * To asynchronously read data into a streambuf until a newline is encountered: - * @code boost::asio::streambuf b; - * ... - * void handler(const boost::system::error_code& e, std::size_t size) - * { - * if (!e) - * { - * std::istream is(&b); - * std::string line; - * std::getline(is, line); - * ... - * } - * } - * ... - * boost::asio::async_read_until(s, b, '\n', handler); @endcode - */ -template <typename AsyncReadStream, typename Allocator, typename ReadHandler> -void async_read_until(AsyncReadStream& s, - boost::asio::basic_streambuf<Allocator>& b, - char delim, ReadHandler handler); - -/// Start an asynchronous operation to read data into a streambuf until it -/// contains a specified delimiter. -/** - * This function is used to asynchronously read data into the specified - * streambuf until the streambuf's get area contains the specified delimiter. - * The function call always returns immediately. The asynchronous operation - * will continue until one of the following conditions is true: - * - * @li The get area of the streambuf contains the specified delimiter. - * - * @li An error occurred. - * - * This operation is implemented in terms of zero or more calls to the stream's - * async_read_some function. If the streambuf's get area already contains the - * delimiter, the asynchronous operation completes immediately. - * - * @param s The stream from which the data is to be read. The type must support - * the AsyncReadStream concept. - * - * @param b A streambuf object into which the data will be read. Ownership of - * the streambuf is retained by the caller, which must guarantee that it remains - * valid until the handler is called. - * - * @param delim The delimiter string. - * - * @param handler The handler to be called when the read operation completes. - * Copies will be made of the handler as required. The function signature of the - * handler must be: - * @code void handler( - * // Result of operation. - * const boost::system::error_code& error, - * - * // The number of bytes in the streambuf's get - * // area up to and including the delimiter. - * // 0 if an error occurred. - * std::size_t bytes_transferred - * ); @endcode - * Regardless of whether the asynchronous operation completes immediately or - * not, the handler will not be invoked from within this function. Invocation of - * the handler will be performed in a manner equivalent to using - * boost::asio::io_service::post(). - * - * @note After a successful async_read_until operation, the streambuf may - * contain additional data beyond the delimiter. An application will typically - * leave that data in the streambuf for a subsequent async_read_until operation - * to examine. - * - * @par Example - * To asynchronously read data into a streambuf until a newline is encountered: - * @code boost::asio::streambuf b; - * ... - * void handler(const boost::system::error_code& e, std::size_t size) - * { - * if (!e) - * { - * std::istream is(&b); - * std::string line; - * std::getline(is, line); - * ... - * } - * } - * ... - * boost::asio::async_read_until(s, b, "\r\n", handler); @endcode - */ -template <typename AsyncReadStream, typename Allocator, typename ReadHandler> -void async_read_until(AsyncReadStream& s, - boost::asio::basic_streambuf<Allocator>& b, const std::string& delim, - ReadHandler handler); - -/// Start an asynchronous operation to read data into a streambuf until some -/// part of its data matches a regular expression. -/** - * This function is used to asynchronously read data into the specified - * streambuf until the streambuf's get area contains some data that matches a - * regular expression. The function call always returns immediately. The - * asynchronous operation will continue until one of the following conditions - * is true: - * - * @li A substring of the streambuf's get area matches the regular expression. - * - * @li An error occurred. - * - * This operation is implemented in terms of zero or more calls to the stream's - * async_read_some function. If the streambuf's get area already contains data - * that matches the regular expression, the function returns immediately. - * - * @param s The stream from which the data is to be read. The type must support - * the AsyncReadStream concept. - * - * @param b A streambuf object into which the data will be read. Ownership of - * the streambuf is retained by the caller, which must guarantee that it remains - * valid until the handler is called. - * - * @param expr The regular expression. - * - * @param handler The handler to be called when the read operation completes. - * Copies will be made of the handler as required. The function signature of the - * handler must be: - * @code void handler( - * // Result of operation. - * const boost::system::error_code& error, - * - * // The number of bytes in the streambuf's get - * // area up to and including the substring - * // that matches the regular. expression. - * // 0 if an error occurred. - * std::size_t bytes_transferred - * ); @endcode - * Regardless of whether the asynchronous operation completes immediately or - * not, the handler will not be invoked from within this function. Invocation of - * the handler will be performed in a manner equivalent to using - * boost::asio::io_service::post(). - * - * @note After a successful async_read_until operation, the streambuf may - * contain additional data beyond that which matched the regular expression. An - * application will typically leave that data in the streambuf for a subsequent - * async_read_until operation to examine. - * - * @par Example - * To asynchronously read data into a streambuf until a CR-LF sequence is - * encountered: - * @code boost::asio::streambuf b; - * ... - * void handler(const boost::system::error_code& e, std::size_t size) - * { - * if (!e) - * { - * std::istream is(&b); - * std::string line; - * std::getline(is, line); - * ... - * } - * } - * ... - * boost::asio::async_read_until(s, b, boost::regex("\r\n"), handler); @endcode - */ -template <typename AsyncReadStream, typename Allocator, typename ReadHandler> -void async_read_until(AsyncReadStream& s, - boost::asio::basic_streambuf<Allocator>& b, const boost::regex& expr, - ReadHandler handler); - -/// Start an asynchronous operation to read data into a streambuf until a -/// function object indicates a match. -/** - * This function is used to asynchronously read data into the specified - * streambuf until a user-defined match condition function object, when applied - * to the data contained in the streambuf, indicates a successful match. The - * function call always returns immediately. The asynchronous operation will - * continue until one of the following conditions is true: - * - * @li The match condition function object returns a std::pair where the second - * element evaluates to true. - * - * @li An error occurred. - * - * This operation is implemented in terms of zero or more calls to the stream's - * async_read_some function. If the match condition function object already - * indicates a match, the operation completes immediately. - * - * @param s The stream from which the data is to be read. The type must support - * the AsyncReadStream concept. - * - * @param b A streambuf object into which the data will be read. - * - * @param match_condition The function object to be called to determine whether - * a match exists. The signature of the function object must be: - * @code pair<iterator, bool> match_condition(iterator begin, iterator end); - * @endcode - * where @c iterator represents the type: - * @code buffers_iterator<basic_streambuf<Allocator>::const_buffers_type> - * @endcode - * The iterator parameters @c begin and @c end define the range of bytes to be - * scanned to determine whether there is a match. The @c first member of the - * return value is an iterator marking one-past-the-end of the bytes that have - * been consumed by the match function. This iterator is used to calculate the - * @c begin parameter for any subsequent invocation of the match condition. The - * @c second member of the return value is true if a match has been found, false - * otherwise. - * - * @param handler The handler to be called when the read operation completes. - * Copies will be made of the handler as required. The function signature of the - * handler must be: - * @code void handler( - * // Result of operation. - * const boost::system::error_code& error, - * - * // The number of bytes in the streambuf's get - * // area that have been fully consumed by the - * // match function. O if an error occurred. - * std::size_t bytes_transferred - * ); @endcode - * Regardless of whether the asynchronous operation completes immediately or - * not, the handler will not be invoked from within this function. Invocation of - * the handler will be performed in a manner equivalent to using - * boost::asio::io_service::post(). - * - * @note After a successful async_read_until operation, the streambuf may - * contain additional data beyond that which matched the function object. An - * application will typically leave that data in the streambuf for a subsequent - * async_read_until operation to examine. - * - * @note The default implementation of the @c is_match_condition type trait - * evaluates to true for function pointers and function objects with a - * @c result_type typedef. It must be specialised for other user-defined - * function objects. - * - * @par Examples - * To asynchronously read data into a streambuf until whitespace is encountered: - * @code typedef boost::asio::buffers_iterator< - * boost::asio::streambuf::const_buffers_type> iterator; - * - * std::pair<iterator, bool> - * match_whitespace(iterator begin, iterator end) - * { - * iterator i = begin; - * while (i != end) - * if (std::isspace(*i++)) - * return std::make_pair(i, true); - * return std::make_pair(i, false); - * } - * ... - * void handler(const boost::system::error_code& e, std::size_t size); - * ... - * boost::asio::streambuf b; - * boost::asio::async_read_until(s, b, match_whitespace, handler); - * @endcode - * - * To asynchronously read data into a streambuf until a matching character is - * found: - * @code class match_char - * { - * public: - * explicit match_char(char c) : c_(c) {} - * - * template <typename Iterator> - * std::pair<Iterator, bool> operator()( - * Iterator begin, Iterator end) const - * { - * Iterator i = begin; - * while (i != end) - * if (c_ == *i++) - * return std::make_pair(i, true); - * return std::make_pair(i, false); - * } - * - * private: - * char c_; - * }; - * - * namespace asio { - * template <> struct is_match_condition<match_char> - * : public boost::true_type {}; - * } // namespace asio - * ... - * void handler(const boost::system::error_code& e, std::size_t size); - * ... - * boost::asio::streambuf b; - * boost::asio::async_read_until(s, b, match_char('a'), handler); - * @endcode - */ -template <typename AsyncReadStream, typename Allocator, - typename MatchCondition, typename ReadHandler> -void async_read_until(AsyncReadStream& s, - boost::asio::basic_streambuf<Allocator>& b, - MatchCondition match_condition, ReadHandler handler, - typename boost::enable_if<is_match_condition<MatchCondition> >::type* = 0); - -/*@}*/ - -} // namespace asio -} // namespace boost - -#include <boost/asio/impl/read_until.ipp> - -#include <boost/asio/detail/pop_options.hpp> - -#endif // BOOST_ASIO_READ_UNTIL_HPP |