63e88f80
 Hu Chunming
提交三方库
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//
// ip/icmp.hpp
// ~~~~~~~~~~~
//
// Copyright (c) 2003-2022 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_ICMP_HPP
#define BOOST_ASIO_IP_ICMP_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/asio/detail/socket_types.hpp>
#include <boost/asio/basic_raw_socket.hpp>
#include <boost/asio/ip/basic_endpoint.hpp>
#include <boost/asio/ip/basic_resolver.hpp>
#include <boost/asio/ip/basic_resolver_iterator.hpp>
#include <boost/asio/ip/basic_resolver_query.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace ip {
/// Encapsulates the flags needed for ICMP.
/**
* The boost::asio::ip::icmp class contains flags necessary for ICMP sockets.
*
* @par Thread Safety
* @e Distinct @e objects: Safe.@n
* @e Shared @e objects: Safe.
*
* @par Concepts:
* Protocol, InternetProtocol.
*/
class icmp
{
public:
/// The type of a ICMP endpoint.
typedef basic_endpoint<icmp> endpoint;
/// Construct to represent the IPv4 ICMP protocol.
static icmp v4() BOOST_ASIO_NOEXCEPT
{
return icmp(BOOST_ASIO_OS_DEF(IPPROTO_ICMP),
BOOST_ASIO_OS_DEF(AF_INET));
}
/// Construct to represent the IPv6 ICMP protocol.
static icmp v6() BOOST_ASIO_NOEXCEPT
{
return icmp(BOOST_ASIO_OS_DEF(IPPROTO_ICMPV6),
BOOST_ASIO_OS_DEF(AF_INET6));
}
/// Obtain an identifier for the type of the protocol.
int type() const BOOST_ASIO_NOEXCEPT
{
return BOOST_ASIO_OS_DEF(SOCK_RAW);
}
/// Obtain an identifier for the protocol.
int protocol() const BOOST_ASIO_NOEXCEPT
{
return protocol_;
}
/// Obtain an identifier for the protocol family.
int family() const BOOST_ASIO_NOEXCEPT
{
return family_;
}
/// The ICMP socket type.
typedef basic_raw_socket<icmp> socket;
/// The ICMP resolver type.
typedef basic_resolver<icmp> resolver;
/// Compare two protocols for equality.
friend bool operator==(const icmp& p1, const icmp& p2)
{
return p1.protocol_ == p2.protocol_ && p1.family_ == p2.family_;
}
/// Compare two protocols for inequality.
friend bool operator!=(const icmp& p1, const icmp& p2)
{
return p1.protocol_ != p2.protocol_ || p1.family_ != p2.family_;
}
private:
// Construct with a specific family.
explicit icmp(int protocol_id, int protocol_family) BOOST_ASIO_NOEXCEPT
: protocol_(protocol_id),
family_(protocol_family)
{
}
int protocol_;
int family_;
};
} // namespace ip
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_IP_ICMP_HPP
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