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authorRemko Tronçon <git@el-tramo.be>2009-06-01 08:48:42 (GMT)
committerRemko Tronçon <git@el-tramo.be>2009-06-01 09:24:28 (GMT)
commit2812bddd81f8a1b804c7460f4e14cd0aa393d129 (patch)
treed46294f35150c4f0f43deaf2d31fceaf945ae715 /3rdParty/Boost/boost/asio/ip/basic_endpoint.hpp
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+//
+// basic_endpoint.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_IP_BASIC_ENDPOINT_HPP
+#define BOOST_ASIO_IP_BASIC_ENDPOINT_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 <boost/throw_exception.hpp>
+#include <boost/detail/workaround.hpp>
+#include <cstring>
+#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
+# include <ostream>
+#endif // BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
+#include <sstream>
+#include <boost/asio/detail/pop_options.hpp>
+
+#include <boost/asio/error.hpp>
+#include <boost/asio/ip/address.hpp>
+#include <boost/asio/detail/socket_ops.hpp>
+#include <boost/asio/detail/socket_types.hpp>
+
+namespace boost {
+namespace asio {
+namespace ip {
+
+/// Describes an endpoint for a version-independent IP socket.
+/**
+ * The boost::asio::ip::basic_endpoint class template describes an endpoint that
+ * may be associated with a particular socket.
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Unsafe.
+ *
+ * @par Concepts:
+ * Endpoint.
+ */
+template <typename InternetProtocol>
+class basic_endpoint
+{
+public:
+ /// The protocol type associated with the endpoint.
+ typedef InternetProtocol protocol_type;
+
+ /// The type of the endpoint structure. This type is dependent on the
+ /// underlying implementation of the socket layer.
+#if defined(GENERATING_DOCUMENTATION)
+ typedef implementation_defined data_type;
+#else
+ typedef boost::asio::detail::socket_addr_type data_type;
+#endif
+
+ /// Default constructor.
+ basic_endpoint()
+ : data_()
+ {
+ data_.v4.sin_family = AF_INET;
+ data_.v4.sin_port = 0;
+ data_.v4.sin_addr.s_addr = INADDR_ANY;
+ }
+
+ /// Construct an endpoint using a port number, specified in the host's byte
+ /// order. The IP address will be the any address (i.e. INADDR_ANY or
+ /// in6addr_any). This constructor would typically be used for accepting new
+ /// connections.
+ /**
+ * @par Examples
+ * To initialise an IPv4 TCP endpoint for port 1234, use:
+ * @code
+ * boost::asio::ip::tcp::endpoint ep(boost::asio::ip::tcp::v4(), 1234);
+ * @endcode
+ *
+ * To specify an IPv6 UDP endpoint for port 9876, use:
+ * @code
+ * boost::asio::ip::udp::endpoint ep(boost::asio::ip::udp::v6(), 9876);
+ * @endcode
+ */
+ basic_endpoint(const InternetProtocol& protocol, unsigned short port_num)
+ : data_()
+ {
+ using namespace std; // For memcpy.
+ if (protocol.family() == PF_INET)
+ {
+ data_.v4.sin_family = AF_INET;
+ data_.v4.sin_port =
+ boost::asio::detail::socket_ops::host_to_network_short(port_num);
+ data_.v4.sin_addr.s_addr = INADDR_ANY;
+ }
+ else
+ {
+ data_.v6.sin6_family = AF_INET6;
+ data_.v6.sin6_port =
+ boost::asio::detail::socket_ops::host_to_network_short(port_num);
+ data_.v6.sin6_flowinfo = 0;
+ boost::asio::detail::in6_addr_type tmp_addr = IN6ADDR_ANY_INIT;
+ data_.v6.sin6_addr = tmp_addr;
+ data_.v6.sin6_scope_id = 0;
+ }
+ }
+
+ /// Construct an endpoint using a port number and an IP address. This
+ /// constructor may be used for accepting connections on a specific interface
+ /// or for making a connection to a remote endpoint.
+ basic_endpoint(const boost::asio::ip::address& addr, unsigned short port_num)
+ : data_()
+ {
+ using namespace std; // For memcpy.
+ if (addr.is_v4())
+ {
+ data_.v4.sin_family = AF_INET;
+ data_.v4.sin_port =
+ boost::asio::detail::socket_ops::host_to_network_short(port_num);
+ data_.v4.sin_addr.s_addr =
+ boost::asio::detail::socket_ops::host_to_network_long(
+ addr.to_v4().to_ulong());
+ }
+ else
+ {
+ data_.v6.sin6_family = AF_INET6;
+ data_.v6.sin6_port =
+ boost::asio::detail::socket_ops::host_to_network_short(port_num);
+ data_.v6.sin6_flowinfo = 0;
+ boost::asio::ip::address_v6 v6_addr = addr.to_v6();
+ boost::asio::ip::address_v6::bytes_type bytes = v6_addr.to_bytes();
+ memcpy(data_.v6.sin6_addr.s6_addr, bytes.elems, 16);
+ data_.v6.sin6_scope_id = v6_addr.scope_id();
+ }
+ }
+
+ /// Copy constructor.
+ basic_endpoint(const basic_endpoint& other)
+ : data_(other.data_)
+ {
+ }
+
+ /// Assign from another endpoint.
+ basic_endpoint& operator=(const basic_endpoint& other)
+ {
+ data_ = other.data_;
+ return *this;
+ }
+
+ /// The protocol associated with the endpoint.
+ protocol_type protocol() const
+ {
+ if (is_v4())
+ return InternetProtocol::v4();
+ return InternetProtocol::v6();
+ }
+
+ /// Get the underlying endpoint in the native type.
+ data_type* data()
+ {
+ return &data_.base;
+ }
+
+ /// Get the underlying endpoint in the native type.
+ const data_type* data() const
+ {
+ return &data_.base;
+ }
+
+ /// Get the underlying size of the endpoint in the native type.
+ std::size_t size() const
+ {
+ if (is_v4())
+ return sizeof(boost::asio::detail::sockaddr_in4_type);
+ else
+ return sizeof(boost::asio::detail::sockaddr_in6_type);
+ }
+
+ /// Set the underlying size of the endpoint in the native type.
+ void resize(std::size_t size)
+ {
+ if (size > sizeof(boost::asio::detail::sockaddr_storage_type))
+ {
+ boost::system::system_error e(boost::asio::error::invalid_argument);
+ boost::throw_exception(e);
+ }
+ }
+
+ /// Get the capacity of the endpoint in the native type.
+ std::size_t capacity() const
+ {
+ return sizeof(boost::asio::detail::sockaddr_storage_type);
+ }
+
+ /// Get the port associated with the endpoint. The port number is always in
+ /// the host's byte order.
+ unsigned short port() const
+ {
+ if (is_v4())
+ {
+ return boost::asio::detail::socket_ops::network_to_host_short(
+ data_.v4.sin_port);
+ }
+ else
+ {
+ return boost::asio::detail::socket_ops::network_to_host_short(
+ data_.v6.sin6_port);
+ }
+ }
+
+ /// Set the port associated with the endpoint. The port number is always in
+ /// the host's byte order.
+ void port(unsigned short port_num)
+ {
+ if (is_v4())
+ {
+ data_.v4.sin_port
+ = boost::asio::detail::socket_ops::host_to_network_short(port_num);
+ }
+ else
+ {
+ data_.v6.sin6_port
+ = boost::asio::detail::socket_ops::host_to_network_short(port_num);
+ }
+ }
+
+ /// Get the IP address associated with the endpoint.
+ boost::asio::ip::address address() const
+ {
+ using namespace std; // For memcpy.
+ if (is_v4())
+ {
+ return boost::asio::ip::address_v4(
+ boost::asio::detail::socket_ops::network_to_host_long(
+ data_.v4.sin_addr.s_addr));
+ }
+ else
+ {
+ boost::asio::ip::address_v6::bytes_type bytes;
+ memcpy(bytes.elems, data_.v6.sin6_addr.s6_addr, 16);
+ return boost::asio::ip::address_v6(bytes, data_.v6.sin6_scope_id);
+ }
+ }
+
+ /// Set the IP address associated with the endpoint.
+ void address(const boost::asio::ip::address& addr)
+ {
+ basic_endpoint<InternetProtocol> tmp_endpoint(addr, port());
+ data_ = tmp_endpoint.data_;
+ }
+
+ /// Compare two endpoints for equality.
+ friend bool operator==(const basic_endpoint<InternetProtocol>& e1,
+ const basic_endpoint<InternetProtocol>& e2)
+ {
+ return e1.address() == e2.address() && e1.port() == e2.port();
+ }
+
+ /// Compare two endpoints for inequality.
+ friend bool operator!=(const basic_endpoint<InternetProtocol>& e1,
+ const basic_endpoint<InternetProtocol>& e2)
+ {
+ return e1.address() != e2.address() || e1.port() != e2.port();
+ }
+
+ /// Compare endpoints for ordering.
+ friend bool operator<(const basic_endpoint<InternetProtocol>& e1,
+ const basic_endpoint<InternetProtocol>& e2)
+ {
+ if (e1.address() < e2.address())
+ return true;
+ if (e1.address() != e2.address())
+ return false;
+ return e1.port() < e2.port();
+ }
+
+private:
+ // Helper function to determine whether the endpoint is IPv4.
+ bool is_v4() const
+ {
+ return data_.base.sa_family == AF_INET;
+ }
+
+ // The underlying IP socket address.
+ union data_union
+ {
+ boost::asio::detail::socket_addr_type base;
+ boost::asio::detail::sockaddr_storage_type storage;
+ boost::asio::detail::sockaddr_in4_type v4;
+ boost::asio::detail::sockaddr_in6_type v6;
+ } data_;
+};
+
+/// Output an endpoint as a string.
+/**
+ * Used to output a human-readable string for a specified endpoint.
+ *
+ * @param os The output stream to which the string will be written.
+ *
+ * @param endpoint The endpoint to be written.
+ *
+ * @return The output stream.
+ *
+ * @relates boost::asio::ip::basic_endpoint
+ */
+#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
+template <typename InternetProtocol>
+std::ostream& operator<<(std::ostream& os,
+ const basic_endpoint<InternetProtocol>& endpoint)
+{
+ const address& addr = endpoint.address();
+ boost::system::error_code ec;
+ std::string a = addr.to_string(ec);
+ if (ec)
+ {
+ if (os.exceptions() & std::ios::failbit)
+ boost::asio::detail::throw_error(ec);
+ else
+ os.setstate(std::ios_base::failbit);
+ }
+ else
+ {
+ std::ostringstream tmp_os;
+ tmp_os.imbue(std::locale::classic());
+ if (addr.is_v4())
+ tmp_os << a;
+ else
+ tmp_os << '[' << a << ']';
+ tmp_os << ':' << endpoint.port();
+ os << tmp_os.str();
+ }
+ return os;
+}
+#else // BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
+template <typename Elem, typename Traits, typename InternetProtocol>
+std::basic_ostream<Elem, Traits>& operator<<(
+ std::basic_ostream<Elem, Traits>& os,
+ const basic_endpoint<InternetProtocol>& endpoint)
+{
+ const address& addr = endpoint.address();
+ boost::system::error_code ec;
+ std::string a = addr.to_string(ec);
+ if (ec)
+ {
+ if (os.exceptions() & std::ios::failbit)
+ boost::asio::detail::throw_error(ec);
+ else
+ os.setstate(std::ios_base::failbit);
+ }
+ else
+ {
+ std::ostringstream tmp_os;
+ tmp_os.imbue(std::locale::classic());
+ if (addr.is_v4())
+ tmp_os << a;
+ else
+ tmp_os << '[' << a << ']';
+ tmp_os << ':' << endpoint.port();
+ os << tmp_os.str();
+ }
+ return os;
+}
+#endif // BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
+
+} // namespace ip
+} // namespace asio
+} // namespace boost
+
+#include <boost/asio/detail/pop_options.hpp>
+
+#endif // BOOST_ASIO_IP_BASIC_ENDPOINT_HPP