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9 | 9 |
|
10 | 10 | #include<string> |
11 | 11 | #include<utility> |
12 | | -#include<asio/io_service.hpp> |
13 | | -#include<asio/ip/udp.hpp> |
14 | | -#include<asio/placeholders.hpp> |
15 | | -#include<asio/strand.hpp> |
| 12 | +#include<memory> |
| 13 | +#include<unordered_map> |
| 14 | +#include<boost/asio/io_service.hpp> |
| 15 | +#include<boost/asio/ip/udp.hpp> |
| 16 | +#include<boost/asio/placeholders.hpp> |
| 17 | +#include<boost/asio/strand.hpp> |
16 | 18 | #include<functional> |
17 | | -#include<boost/enable_shared_from_this.hpp> |
18 | 19 | #include<boost/lexical_cast.hpp> |
19 | 20 | #include<boost/unordered_map.hpp> |
20 | 21 | #include<boost/algorithm/string/case_conv.hpp> |
|
24 | 25 | #include<network/protocol/http/client/connection/async_resolver.hpp> |
25 | 26 |
|
26 | 27 | namespacenetwork {namespacehttp { |
27 | | -structasync_resolver_pimpl :boost::enable_shared_from_this<async_resolver_pimpl> { |
28 | | -typedef resolver_delegate::resolve_completion_function resolve_completion_function; |
29 | | -async_resolver_pimpl(asio::io_service & service,bool cache_resolved); |
30 | | -voidresolve(std::stringconst & host, |
31 | | -uint16_t port, |
32 | | - resolve_completion_function once_resolved); |
33 | | -voidclear_resolved_cache(); |
34 | | -private: |
35 | | - asio::ip::udp::resolver resolver_; |
36 | | -bool cache_resolved_; |
37 | | -typedef asio::ip::udp::resolver::iterator |
38 | | -resolver_iterator; |
39 | | -typedefboost::unordered_map<std::string, std::pair<resolver_iterator,resolver_iterator> > |
40 | | -endpoint_cache; |
41 | | - endpoint_cache endpoint_cache_; |
42 | | -boost::scoped_ptr<asio::io_service::strand> resolver_strand_; |
| 28 | +structasync_resolver_pimpl :std::enable_shared_from_this<async_resolver_pimpl> { |
| 29 | +typedef resolver_delegate::resolve_completion_function resolve_completion_function; |
| 30 | +async_resolver_pimpl(boost::asio::io_service & service,bool cache_resolved); |
| 31 | +voidresolve(std::stringconst & host, |
| 32 | +uint16_t port, |
| 33 | +resolve_completion_function once_resolved); |
| 34 | +voidclear_resolved_cache(); |
| 35 | +private: |
| 36 | + boost::asio::ip::udp::resolver resolver_; |
| 37 | +bool cache_resolved_; |
| 38 | +typedefboost::asio::ip::udp::resolver::iterator |
| 39 | + resolver_iterator; |
| 40 | +typedefstd::unordered_map<std::string, std::pair<resolver_iterator,resolver_iterator> > |
| 41 | + endpoint_cache; |
| 42 | +endpoint_cache endpoint_cache_; |
| 43 | + std::unique_ptr<boost::asio::io_service::strand> resolver_strand_; |
43 | 44 |
|
44 | | -voidhandle_resolve(std::stringconst & host, |
45 | | - resolve_completion_function once_resolved, |
46 | | -asio::error_codeconst & ec, |
47 | | - resolver_iterator endpoint_iterator); |
48 | | -}; |
49 | | -
|
50 | | -async_resolver_pimpl::async_resolver_pimpl(asio::io_service & service,bool cache_resolved) |
| 45 | +voidhandle_resolve(std::stringconst & host, |
| 46 | +resolve_completion_function once_resolved, |
| 47 | + boost::system::error_codeconst & ec, |
| 48 | +resolver_iterator endpoint_iterator); |
| 49 | +}; |
| 50 | + |
| 51 | +async_resolver_pimpl::async_resolver_pimpl(boost::asio::io_service & service,bool cache_resolved) |
51 | 52 | : resolver_(service), |
52 | | -cache_resolved_(cache_resolved), |
53 | | -endpoint_cache_(), |
54 | | -resolver_strand_(new(std::nothrow) asio::io_service::strand(service)) |
55 | | -{ |
56 | | -// Do nothing |
57 | | -} |
| 53 | +cache_resolved_(cache_resolved), |
| 54 | + endpoint_cache_(), |
| 55 | + resolver_strand_(new(std::nothrow)boost::asio::io_service::strand(service)) |
| 56 | +{ |
| 57 | +// Do nothing |
| 58 | +} |
58 | 59 |
|
59 | | -voidasync_resolver_pimpl::clear_resolved_cache() { |
60 | | -if (cache_resolved_) |
61 | | -endpoint_cache().swap(endpoint_cache_); |
62 | | -} |
| 60 | +voidasync_resolver_pimpl::clear_resolved_cache() { |
| 61 | +if (cache_resolved_) |
| 62 | +endpoint_cache().swap(endpoint_cache_); |
| 63 | +} |
63 | 64 |
|
64 | | -voidasync_resolver_pimpl::resolve(std::stringconst & host, |
65 | | - boost::uint16_t port, |
66 | | - resolve_completion_function once_resolved) { |
67 | | -if (!resolver_strand_.get()) |
68 | | -BOOST_THROW_EXCEPTION(std::runtime_error( |
69 | | -"Uninitialized resolver strand, ran out of memory.")); |
| 65 | +voidasync_resolver_pimpl::resolve(std::stringconst & host, |
| 66 | +boost::uint16_t port, |
| 67 | +resolve_completion_function once_resolved) { |
| 68 | +if (!resolver_strand_.get()) |
| 69 | +BOOST_THROW_EXCEPTION(std::runtime_error( |
| 70 | +"Uninitialized resolver strand, ran out of memory.")); |
70 | 71 |
|
71 | | -if (cache_resolved_) { |
72 | | - endpoint_cache::iterator iter = |
73 | | - endpoint_cache_.find(boost::to_lower_copy(host)); |
74 | | -if (iter != endpoint_cache_.end()) { |
75 | | - asio::error_code ignored; |
76 | | -once_resolved(ignored, iter->second); |
77 | | -return; |
| 72 | +if (cache_resolved_) { |
| 73 | + endpoint_cache::iterator iter = |
| 74 | + endpoint_cache_.find(boost::to_lower_copy(host)); |
| 75 | +if (iter != endpoint_cache_.end()) { |
| 76 | + boost::system::error_code ignored; |
| 77 | +once_resolved(ignored, iter->second); |
| 78 | +return; |
| 79 | + } |
78 | 80 | } |
79 | | - } |
80 | 81 |
|
81 | | - std::string port_str = boost::lexical_cast<std::string>(port); |
82 | | - asio::ip::udp::resolver::queryquery(host, port_str); |
83 | | -usingnamespacestd::placeholders; |
84 | | - resolver_.async_resolve( |
85 | | - query, |
86 | | - resolver_strand_->wrap( |
87 | | -std::bind( |
88 | | - &async_resolver_pimpl::handle_resolve, |
89 | | -async_resolver_pimpl::shared_from_this(), |
90 | | -boost::to_lower_copy(host), |
91 | | - once_resolved, |
92 | | - _1, |
93 | | - _2))); |
94 | | -} |
| 82 | + std::string port_str = boost::lexical_cast<std::string>(port); |
| 83 | + boost::asio::ip::udp::resolver::queryquery(host, port_str); |
| 84 | +usingnamespacestd::placeholders; |
| 85 | + resolver_.async_resolve(query, |
| 86 | + resolver_strand_->wrap(std::bind(&async_resolver_pimpl::handle_resolve, |
| 87 | +async_resolver_pimpl::shared_from_this(), |
| 88 | +boost::to_lower_copy(host), |
| 89 | + once_resolved, |
| 90 | + _1, |
| 91 | + _2))); |
| 92 | + } |
95 | 93 |
|
96 | | -voidasync_resolver_pimpl::handle_resolve(std::stringconst & host, |
97 | | - resolve_completion_function once_resolved, |
98 | | -asio::error_codeconst & ec, |
99 | | - resolver_iterator endpoint_iterator) { |
100 | | - endpoint_cache::iterator iter; |
101 | | -bool inserted =false; |
102 | | -if (!ec && cache_resolved_) { |
103 | | -boost::fusion::tie(iter, inserted) = |
| 94 | +voidasync_resolver_pimpl::handle_resolve(std::stringconst & host, |
| 95 | +resolve_completion_function once_resolved, |
| 96 | + boost::system::error_codeconst & ec, |
| 97 | +resolver_iterator endpoint_iterator) { |
| 98 | +endpoint_cache::iterator iter; |
| 99 | +bool inserted =false; |
| 100 | +if (!ec && cache_resolved_) { |
| 101 | +boost::fusion::tie(iter, inserted) = |
104 | 102 | endpoint_cache_.insert( |
105 | | -std::make_pair(host, |
106 | | -std::make_pair(endpoint_iterator, |
107 | | -resolver_iterator()))); |
108 | | -once_resolved(ec, iter->second); |
109 | | - }else { |
110 | | -once_resolved(ec,std::make_pair(endpoint_iterator,resolver_iterator())); |
| 103 | +std::make_pair(host, |
| 104 | +std::make_pair(endpoint_iterator, |
| 105 | +resolver_iterator()))); |
| 106 | +once_resolved(ec, iter->second); |
| 107 | + }else { |
| 108 | +once_resolved(ec,std::make_pair(endpoint_iterator,resolver_iterator())); |
| 109 | + } |
111 | 110 | } |
112 | | -} |
113 | | - |
114 | | -async_resolver::async_resolver(asio::io_service & service,bool cache_resolved) |
115 | | -: pimpl(new (std::nothrow) async_resolver_pimpl(service, cache_resolved)) |
116 | | -{} |
117 | | - |
118 | | -voidasync_resolver::resolve(std::stringconst & host, |
119 | | -uint16_t port, |
120 | | - resolve_completion_function once_resolved) { |
121 | | -BOOST_ASSERT(pimpl.get() &&"Uninitialized pimpl, probably ran out of memory."); |
122 | | - pimpl->resolve(host, port, once_resolved); |
123 | | -} |
124 | 111 |
|
125 | | -voidasync_resolver::clear_resolved_cache() { |
126 | | -BOOST_ASSERT(pimpl.get() &&"Uninitialized pimpl, probably ran out of memory."); |
127 | | - pimpl->clear_resolved_cache(); |
128 | | -} |
129 | | - |
130 | | -async_resolver::~async_resolver() { |
131 | | -// Do nothing |
132 | | -} |
| 112 | +async_resolver::async_resolver(boost::asio::io_service & service,bool cache_resolved) |
| 113 | + : pimpl(new (std::nothrow) async_resolver_pimpl(service, cache_resolved)) |
| 114 | + {} |
133 | 115 |
|
| 116 | +voidasync_resolver::resolve(std::stringconst & host, |
| 117 | +uint16_t port, |
| 118 | + resolve_completion_function once_resolved) { |
| 119 | +BOOST_ASSERT(pimpl.get() &&"Uninitialized pimpl, probably ran out of memory."); |
| 120 | + pimpl->resolve(host, port, once_resolved); |
| 121 | + } |
| 122 | + |
| 123 | +voidasync_resolver::clear_resolved_cache() { |
| 124 | +BOOST_ASSERT(pimpl.get() &&"Uninitialized pimpl, probably ran out of memory."); |
| 125 | + pimpl->clear_resolved_cache(); |
| 126 | + } |
| 127 | + |
| 128 | +async_resolver::~async_resolver() { |
| 129 | +// Do nothing |
| 130 | + } |
| 131 | + |
134 | 132 | }// namespace http |
135 | 133 | }// namespace network |
136 | | -
|
| 134 | + |
137 | 135 | #endif/* NETWORK_PROTOCOL_HTTP_CLIENT_CONNECTION_ASYNC_RESOLVER_IPP_20111126*/ |