123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156 |
- #ifndef BOOST_ASIO_IP_BASIC_RESOLVER_ITERATOR_HPP
- #define BOOST_ASIO_IP_BASIC_RESOLVER_ITERATOR_HPP
- #if defined(_MSC_VER) && (_MSC_VER >= 1200)
- # pragma once
- #endif
- #include <boost/asio/detail/push_options.hpp>
- #include <boost/asio/detail/push_options.hpp>
- #include <boost/iterator/iterator_facade.hpp>
- #include <boost/optional.hpp>
- #include <boost/shared_ptr.hpp>
- #include <cstring>
- #include <string>
- #include <vector>
- #include <boost/asio/detail/pop_options.hpp>
- #include <boost/asio/detail/socket_ops.hpp>
- #include <boost/asio/detail/socket_types.hpp>
- #include <boost/asio/ip/basic_resolver_entry.hpp>
- namespace boost {
- namespace asio {
- namespace ip {
- template <typename InternetProtocol>
- class basic_resolver_iterator
- : public boost::iterator_facade<
- basic_resolver_iterator<InternetProtocol>,
- const basic_resolver_entry<InternetProtocol>,
- boost::forward_traversal_tag>
- {
- public:
-
- basic_resolver_iterator()
- {
- }
-
- static basic_resolver_iterator create(
- boost::asio::detail::addrinfo_type* address_info,
- const std::string& host_name, const std::string& service_name)
- {
- basic_resolver_iterator iter;
- if (!address_info)
- return iter;
- std::string actual_host_name = host_name;
- if (address_info->ai_canonname)
- actual_host_name = address_info->ai_canonname;
- iter.values_.reset(new values_type);
- while (address_info)
- {
- if (address_info->ai_family == PF_INET
- || address_info->ai_family == PF_INET6)
- {
- using namespace std;
- typename InternetProtocol::endpoint endpoint;
- endpoint.resize(static_cast<std::size_t>(address_info->ai_addrlen));
- memcpy(endpoint.data(), address_info->ai_addr,
- address_info->ai_addrlen);
- iter.values_->push_back(
- basic_resolver_entry<InternetProtocol>(endpoint,
- actual_host_name, service_name));
- }
- address_info = address_info->ai_next;
- }
- if (iter.values_->size())
- iter.iter_ = iter.values_->begin();
- else
- iter.values_.reset();
- return iter;
- }
-
- static basic_resolver_iterator create(
- const typename InternetProtocol::endpoint& endpoint,
- const std::string& host_name, const std::string& service_name)
- {
- basic_resolver_iterator iter;
- iter.values_.reset(new values_type);
- iter.values_->push_back(
- basic_resolver_entry<InternetProtocol>(
- endpoint, host_name, service_name));
- iter.iter_ = iter.values_->begin();
- return iter;
- }
- private:
- friend class boost::iterator_core_access;
- void increment()
- {
- if (++*iter_ == values_->end())
- {
-
- values_.reset();
- typedef typename values_type::const_iterator values_iterator_type;
- iter_.reset();
- }
- }
- bool equal(const basic_resolver_iterator& other) const
- {
- if (!values_ && !other.values_)
- return true;
- if (values_ != other.values_)
- return false;
- return *iter_ == *other.iter_;
- }
- const basic_resolver_entry<InternetProtocol>& dereference() const
- {
- return **iter_;
- }
- typedef std::vector<basic_resolver_entry<InternetProtocol> > values_type;
- typedef typename values_type::const_iterator values_iter_type;
- boost::shared_ptr<values_type> values_;
- boost::optional<values_iter_type> iter_;
- };
- }
- }
- }
- #include <boost/asio/detail/pop_options.hpp>
- #endif
|