/cinder_0.8.3_vc2008/boost/boost/asio/ip/resolver_query_base.hpp
C++ Header | 157 lines | 100 code | 26 blank | 31 comment | 8 complexity | 14818ee9d42e44ff41827d85e35ca090 MD5 | raw file
- //
- // ip/resolver_query_base.hpp
- // ~~~~~~~~~~~~~~~~~~~~~~~~~~
- //
- // Copyright (c) 2003-2011 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_IP_RESOLVER_QUERY_BASE_HPP
- #define BOOST_ASIO_IP_RESOLVER_QUERY_BASE_HPP
-
- #if defined(_MSC_VER) && (_MSC_VER >= 1200)
- # pragma once
- #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
- #include <boost/asio/detail/config.hpp>
- #include <boost/detail/workaround.hpp>
- #include <boost/asio/detail/socket_types.hpp>
-
- #include <boost/asio/detail/push_options.hpp>
-
- namespace boost {
- namespace asio {
- namespace ip {
-
- /// The resolver_query_base class is used as a base for the
- /// basic_resolver_query class templates to provide a common place to define
- /// the flag constants.
- class resolver_query_base
- {
- public:
- #if defined(GENERATING_DOCUMENTATION)
- /// A bitmask type (C++ Std [lib.bitmask.types]).
- typedef unspecified flags;
-
- /// Determine the canonical name of the host specified in the query.
- static const flags canonical_name = implementation_defined;
-
- /// Indicate that returned endpoint is intended for use as a locally bound
- /// socket endpoint.
- static const flags passive = implementation_defined;
-
- /// Host name should be treated as a numeric string defining an IPv4 or IPv6
- /// address and no name resolution should be attempted.
- static const flags numeric_host = implementation_defined;
-
- /// Service name should be treated as a numeric string defining a port number
- /// and no name resolution should be attempted.
- static const flags numeric_service = implementation_defined;
-
- /// If the query protocol family is specified as IPv6, return IPv4-mapped
- /// IPv6 addresses on finding no IPv6 addresses.
- static const flags v4_mapped = implementation_defined;
-
- /// If used with v4_mapped, return all matching IPv6 and IPv4 addresses.
- static const flags all_matching = implementation_defined;
-
- /// Only return IPv4 addresses if a non-loopback IPv4 address is configured
- /// for the system. Only return IPv6 addresses if a non-loopback IPv6 address
- /// is configured for the system.
- static const flags address_configured = implementation_defined;
- #else
- enum flags
- {
- canonical_name = AI_CANONNAME,
- passive = AI_PASSIVE,
- numeric_host = AI_NUMERICHOST,
- # if defined(AI_NUMERICSERV)
- numeric_service = AI_NUMERICSERV,
- # else
- numeric_service = 0,
- # endif
- // Note: QNX Neutrino 6.3 defines AI_V4MAPPED, AI_ALL and AI_ADDRCONFIG but
- // does not implement them. Therefore they are specifically excluded here.
- # if defined(AI_V4MAPPED) && !defined(__QNXNTO__)
- v4_mapped = AI_V4MAPPED,
- # else
- v4_mapped = 0,
- # endif
- # if defined(AI_ALL) && !defined(__QNXNTO__)
- all_matching = AI_ALL,
- # else
- all_matching = 0,
- # endif
- # if defined(AI_ADDRCONFIG) && !defined(__QNXNTO__)
- address_configured = AI_ADDRCONFIG
- # else
- address_configured = 0
- # endif
- };
-
- // Implement bitmask operations as shown in C++ Std [lib.bitmask.types].
-
- friend flags operator&(flags x, flags y)
- {
- return static_cast<flags>(
- static_cast<unsigned int>(x) & static_cast<unsigned int>(y));
- }
-
- friend flags operator|(flags x, flags y)
- {
- return static_cast<flags>(
- static_cast<unsigned int>(x) | static_cast<unsigned int>(y));
- }
-
- friend flags operator^(flags x, flags y)
- {
- return static_cast<flags>(
- static_cast<unsigned int>(x) ^ static_cast<unsigned int>(y));
- }
-
- friend flags operator~(flags x)
- {
- return static_cast<flags>(static_cast<unsigned int>(~x));
- }
-
- friend flags& operator&=(flags& x, flags y)
- {
- x = x & y;
- return x;
- }
-
- friend flags& operator|=(flags& x, flags y)
- {
- x = x | y;
- return x;
- }
-
- friend flags& operator^=(flags& x, flags y)
- {
- x = x ^ y;
- return x;
- }
- #endif
-
- protected:
- /// Protected destructor to prevent deletion through this type.
- ~resolver_query_base()
- {
- }
-
- #if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
- private:
- // Workaround to enable the empty base optimisation with Borland C++.
- char dummy_;
- #endif
- };
-
- } // namespace ip
- } // namespace asio
- } // namespace boost
-
- #include <boost/asio/detail/pop_options.hpp>
-
- #endif // BOOST_ASIO_IP_RESOLVER_QUERY_BASE_HPP