28 #ifndef WEBSOCKETPP_TRANSPORT_ASIO_HPP 29 #define WEBSOCKETPP_TRANSPORT_ASIO_HPP 31 #include <websocketpp/transport/base/endpoint.hpp> 32 #include <websocketpp/transport/asio/connection.hpp> 33 #include <websocketpp/transport/asio/security/none.hpp> 35 #include <websocketpp/uri.hpp> 36 #include <websocketpp/logger/levels.hpp> 38 #include <websocketpp/common/functional.hpp> 43 namespace websocketpp {
52 template <
typename config>
53 class endpoint :
public config::socket_type {
56 typedef endpoint<config> type;
59 typedef typename config::concurrency_type concurrency_type;
61 typedef typename config::socket_type socket_type;
63 typedef typename config::elog_type elog_type;
65 typedef typename config::alog_type alog_type;
68 typedef typename socket_type::socket_con_type socket_con_type;
70 typedef typename socket_con_type::ptr socket_con_ptr;
74 typedef asio::connection<config> transport_con_type;
77 typedef typename transport_con_type::ptr transport_con_ptr;
80 typedef lib::asio::io_service * io_service_ptr;
82 typedef lib::shared_ptr<lib::asio::ip::tcp::acceptor> acceptor_ptr;
84 typedef lib::shared_ptr<lib::asio::ip::tcp::resolver> resolver_ptr;
86 typedef lib::shared_ptr<lib::asio::steady_timer> timer_ptr;
88 typedef lib::shared_ptr<lib::asio::io_service::work> work_ptr;
93 , m_external_io_service(
false)
96 , m_state(UNINITIALIZED)
108 if (m_state != UNINITIALIZED && !m_external_io_service) {
116 #ifdef _WEBSOCKETPP_DEFAULT_DELETE_FUNCTIONS_ 117 endpoint(
const endpoint & src) =
delete;
118 endpoint& operator= (
const endpoint & rhs) =
delete;
121 endpoint(
const endpoint & src);
122 endpoint & operator= (
const endpoint & rhs);
126 #ifdef _WEBSOCKETPP_MOVE_SEMANTICS_ 127 endpoint (endpoint && src)
128 : config::socket_type(std::move(src))
129 , m_tcp_pre_init_handler(src.m_tcp_pre_init_handler)
130 , m_tcp_post_init_handler(src.m_tcp_post_init_handler)
131 , m_io_service(src.m_io_service)
132 , m_external_io_service(src.m_external_io_service)
133 , m_acceptor(src.m_acceptor)
134 , m_listen_backlog(lib::asio::socket_base::max_connections)
135 , m_reuse_addr(src.m_reuse_addr)
138 , m_state(src.m_state)
140 src.m_io_service = NULL;
141 src.m_external_io_service =
false;
142 src.m_acceptor = NULL;
143 src.m_state = UNINITIALIZED;
168 bool is_secure()
const {
169 return socket_type::is_secure();
181 void init_asio(io_service_ptr ptr, lib::error_code & ec) {
182 if (m_state != UNINITIALIZED) {
183 m_elog->write(log::elevel::library,
184 "asio::init_asio called from the wrong state");
185 using websocketpp::error::make_error_code;
186 ec = make_error_code(websocketpp::error::invalid_state);
190 m_alog->write(log::alevel::devel,
"asio::init_asio");
193 m_external_io_service =
true;
194 m_acceptor = lib::make_shared<lib::asio::ip::tcp::acceptor>(
195 lib::ref(*m_io_service));
198 ec = lib::error_code();
209 void init_asio(io_service_ptr ptr) {
212 if (ec) {
throw exception(ec); }
224 void init_asio(lib::error_code & ec) {
229 #ifdef _WEBSOCKETPP_CPP11_MEMORY_ 230 lib::unique_ptr<lib::asio::io_service> service(
new lib::asio::io_service());
232 lib::auto_ptr<lib::asio::io_service> service(
new lib::asio::io_service());
234 init_asio(service.get(), ec);
235 if( !ec ) service.release();
236 m_external_io_service =
false;
251 #ifdef _WEBSOCKETPP_CPP11_MEMORY_ 252 lib::unique_ptr<lib::asio::io_service> service(
new lib::asio::io_service());
254 lib::auto_ptr<lib::asio::io_service> service(
new lib::asio::io_service());
256 init_asio( service.get() );
259 m_external_io_service =
false;
272 void set_tcp_pre_init_handler(tcp_init_handler h) {
273 m_tcp_pre_init_handler = h;
286 void set_tcp_init_handler(tcp_init_handler h) {
287 set_tcp_pre_init_handler(h);
301 void set_tcp_post_init_handler(tcp_init_handler h) {
302 m_tcp_post_init_handler = h;
324 void set_listen_backlog(
int backlog) {
325 m_listen_backlog = backlog;
342 void set_reuse_addr(
bool value) {
343 m_reuse_addr = value;
357 lib::asio::io_service & get_io_service() {
358 return *m_io_service;
374 lib::asio::ip::tcp::endpoint get_local_endpoint(lib::asio::error_code & ec) {
376 return m_acceptor->local_endpoint(ec);
378 ec = lib::asio::error::make_error_code(lib::asio::error::bad_descriptor);
379 return lib::asio::ip::tcp::endpoint();
391 void listen(lib::asio::ip::tcp::endpoint
const & ep, lib::error_code & ec)
393 if (m_state != READY) {
394 m_elog->write(log::elevel::library,
395 "asio::listen called from the wrong state");
396 using websocketpp::error::make_error_code;
397 ec = make_error_code(websocketpp::error::invalid_state);
401 m_alog->write(log::alevel::devel,
"asio::listen");
403 lib::asio::error_code bec;
405 m_acceptor->open(ep.protocol(),bec);
407 m_acceptor->set_option(lib::asio::socket_base::reuse_address(m_reuse_addr),bec);
410 m_acceptor->bind(ep,bec);
413 m_acceptor->listen(m_listen_backlog,bec);
416 if (m_acceptor->is_open()) {
419 log_err(log::elevel::info,
"asio listen",bec);
420 ec = make_error_code(error::pass_through);
423 ec = lib::error_code();
433 void listen(lib::asio::ip::tcp::endpoint
const & ep) {
436 if (ec) {
throw exception(ec); }
453 template <
typename InternetProtocol>
454 void listen(InternetProtocol
const & internet_protocol, uint16_t port,
455 lib::error_code & ec)
457 lib::asio::ip::tcp::endpoint ep(internet_protocol, port);
474 template <
typename InternetProtocol>
475 void listen(InternetProtocol
const & internet_protocol, uint16_t port)
477 lib::asio::ip::tcp::endpoint ep(internet_protocol, port);
493 void listen(uint16_t port, lib::error_code & ec) {
494 listen(lib::asio::ip::tcp::v6(), port, ec);
509 void listen(uint16_t port) {
510 listen(lib::asio::ip::tcp::v6(), port);
529 void listen(std::string
const & host, std::string
const & service,
530 lib::error_code & ec)
532 using lib::asio::ip::tcp;
533 tcp::resolver r(*m_io_service);
534 tcp::resolver::query query(host, service);
535 tcp::resolver::iterator endpoint_iterator = r.resolve(query);
536 tcp::resolver::iterator end;
537 if (endpoint_iterator == end) {
538 m_elog->write(log::elevel::library,
539 "asio::listen could not resolve the supplied host or service");
540 ec = make_error_code(error::invalid_host_service);
543 listen(*endpoint_iterator,ec);
562 void listen(std::string
const & host, std::string
const & service)
565 listen(host,service,ec);
566 if (ec) {
throw exception(ec); }
577 void stop_listening(lib::error_code & ec) {
578 if (m_state != LISTENING) {
579 m_elog->write(log::elevel::library,
580 "asio::listen called from the wrong state");
581 using websocketpp::error::make_error_code;
582 ec = make_error_code(websocketpp::error::invalid_state);
588 ec = lib::error_code();
598 void stop_listening() {
601 if (ec) {
throw exception(ec); }
608 bool is_listening()
const {
609 return (m_state == LISTENING);
614 return m_io_service->run();
621 std::size_t run_one() {
622 return m_io_service->run_one();
627 m_io_service->stop();
632 return m_io_service->poll();
636 std::size_t poll_one() {
637 return m_io_service->poll_one();
642 m_io_service->reset();
646 bool stopped()
const {
647 return m_io_service->stopped();
662 void start_perpetual() {
663 m_work = lib::make_shared<lib::asio::io_service::work>(
664 lib::ref(*m_io_service)
676 void stop_perpetual() {
692 timer_ptr set_timer(
long duration, timer_handler callback) {
693 timer_ptr new_timer = lib::make_shared<lib::asio::steady_timer>(
695 lib::asio::milliseconds(duration)
698 new_timer->async_wait(
704 lib::placeholders::_1
720 void handle_timer(timer_ptr, timer_handler callback,
721 lib::asio::error_code
const & ec)
724 if (ec == lib::asio::error::operation_aborted) {
725 callback(make_error_code(transport::error::operation_aborted));
727 m_elog->write(log::elevel::info,
728 "asio handle_timer error: "+ec.message());
729 log_err(log::elevel::info,
"asio handle_timer",ec);
730 callback(make_error_code(error::pass_through));
733 callback(lib::error_code());
743 void async_accept(transport_con_ptr tcon, accept_handler callback,
744 lib::error_code & ec)
746 if (m_state != LISTENING) {
747 using websocketpp::error::make_error_code;
748 ec = make_error_code(websocketpp::error::async_accept_not_listening);
752 m_alog->write(log::alevel::devel,
"asio::async_accept");
754 if (config::enable_multithreading) {
755 m_acceptor->async_accept(
756 tcon->get_raw_socket(),
757 tcon->get_strand()->wrap(lib::bind(
758 &type::handle_accept,
761 lib::placeholders::_1
765 m_acceptor->async_accept(
766 tcon->get_raw_socket(),
768 &type::handle_accept,
771 lib::placeholders::_1
782 void async_accept(transport_con_ptr tcon, accept_handler callback) {
784 async_accept(tcon,callback,ec);
785 if (ec) {
throw exception(ec); }
798 void init_logging(alog_type* a, elog_type* e) {
803 void handle_accept(accept_handler callback, lib::asio::error_code
const &
806 lib::error_code ret_ec;
808 m_alog->write(log::alevel::devel,
"asio::handle_accept");
811 if (asio_ec == lib::asio::errc::operation_canceled) {
812 ret_ec = make_error_code(websocketpp::error::operation_canceled);
814 log_err(log::elevel::info,
"asio handle_accept",asio_ec);
815 ret_ec = make_error_code(error::pass_through);
824 void async_connect(transport_con_ptr tcon, uri_ptr u, connect_handler cb) {
825 using namespace lib::asio::ip;
829 m_resolver = lib::make_shared<lib::asio::ip::tcp::resolver>(
830 lib::ref(*m_io_service));
835 std::string proxy = tcon->get_proxy();
840 host = u->get_host();
841 port = u->get_port_str();
845 uri_ptr pu = lib::make_shared<uri>(proxy);
847 if (!pu->get_valid()) {
848 cb(make_error_code(error::proxy_invalid));
852 ec = tcon->proxy_init(u->get_authority());
858 host = pu->get_host();
859 port = pu->get_port_str();
862 tcp::resolver::query query(host,port);
864 if (m_alog->static_test(log::alevel::devel)) {
865 m_alog->write(log::alevel::devel,
866 "starting async DNS resolve for "+host+
":"+port);
871 dns_timer = tcon->set_timer(
872 config::timeout_dns_resolve,
874 &type::handle_resolve_timeout,
878 lib::placeholders::_1
882 if (config::enable_multithreading) {
883 m_resolver->async_resolve(
885 tcon->get_strand()->wrap(lib::bind(
886 &type::handle_resolve,
891 lib::placeholders::_1,
892 lib::placeholders::_2
896 m_resolver->async_resolve(
899 &type::handle_resolve,
904 lib::placeholders::_1,
905 lib::placeholders::_2
920 void handle_resolve_timeout(timer_ptr, connect_handler callback,
921 lib::error_code
const & ec)
923 lib::error_code ret_ec;
926 if (ec == transport::error::operation_aborted) {
927 m_alog->write(log::alevel::devel,
928 "asio handle_resolve_timeout timer cancelled");
932 log_err(log::elevel::devel,
"asio handle_resolve_timeout",ec);
935 ret_ec = make_error_code(transport::error::timeout);
938 m_alog->write(log::alevel::devel,
"DNS resolution timed out");
939 m_resolver->cancel();
943 void handle_resolve(transport_con_ptr tcon, timer_ptr dns_timer,
944 connect_handler callback, lib::asio::error_code
const & ec,
945 lib::asio::ip::tcp::resolver::iterator iterator)
947 if (ec == lib::asio::error::operation_aborted ||
948 lib::asio::is_neg(dns_timer->expires_from_now()))
950 m_alog->write(log::alevel::devel,
"async_resolve cancelled");
957 log_err(log::elevel::info,
"asio async_resolve",ec);
958 callback(make_error_code(error::pass_through));
962 if (m_alog->static_test(log::alevel::devel)) {
964 s <<
"Async DNS resolve successful. Results: ";
966 lib::asio::ip::tcp::resolver::iterator it, end;
967 for (it = iterator; it != end; ++it) {
968 s << (*it).endpoint() <<
" ";
971 m_alog->write(log::alevel::devel,s.str());
974 m_alog->write(log::alevel::devel,
"Starting async connect");
978 con_timer = tcon->set_timer(
979 config::timeout_connect,
981 &type::handle_connect_timeout,
986 lib::placeholders::_1
990 if (config::enable_multithreading) {
991 lib::asio::async_connect(
992 tcon->get_raw_socket(),
994 tcon->get_strand()->wrap(lib::bind(
995 &type::handle_connect,
1000 lib::placeholders::_1
1004 lib::asio::async_connect(
1005 tcon->get_raw_socket(),
1008 &type::handle_connect,
1013 lib::placeholders::_1
1029 void handle_connect_timeout(transport_con_ptr tcon, timer_ptr,
1030 connect_handler callback, lib::error_code
const & ec)
1032 lib::error_code ret_ec;
1035 if (ec == transport::error::operation_aborted) {
1036 m_alog->write(log::alevel::devel,
1037 "asio handle_connect_timeout timer cancelled");
1041 log_err(log::elevel::devel,
"asio handle_connect_timeout",ec);
1044 ret_ec = make_error_code(transport::error::timeout);
1047 m_alog->write(log::alevel::devel,
"TCP connect timed out");
1048 tcon->cancel_socket_checked();
1052 void handle_connect(transport_con_ptr tcon, timer_ptr con_timer,
1053 connect_handler callback, lib::asio::error_code
const & ec)
1055 if (ec == lib::asio::error::operation_aborted ||
1056 lib::asio::is_neg(con_timer->expires_from_now()))
1058 m_alog->write(log::alevel::devel,
"async_connect cancelled");
1062 con_timer->cancel();
1065 log_err(log::elevel::info,
"asio async_connect",ec);
1066 callback(make_error_code(error::pass_through));
1070 if (m_alog->static_test(log::alevel::devel)) {
1071 m_alog->write(log::alevel::devel,
1072 "Async connect to "+tcon->get_remote_endpoint()+
" successful.");
1075 callback(lib::error_code());
1089 lib::error_code init(transport_con_ptr tcon) {
1090 m_alog->write(log::alevel::devel,
"transport::asio::init");
1093 socket_type::init(lib::static_pointer_cast<socket_con_type,
1094 transport_con_type>(tcon));
1098 ec = tcon->init_asio(m_io_service);
1099 if (ec) {
return ec;}
1101 tcon->set_tcp_pre_init_handler(m_tcp_pre_init_handler);
1102 tcon->set_tcp_post_init_handler(m_tcp_post_init_handler);
1104 return lib::error_code();
1108 template <
typename error_type>
1109 void log_err(log::level l,
char const * msg, error_type
const & ec) {
1110 std::stringstream s;
1111 s << msg <<
" error: " << ec <<
" (" << ec.message() <<
")";
1112 m_elog->write(l,s.str());
1122 tcp_init_handler m_tcp_pre_init_handler;
1123 tcp_init_handler m_tcp_post_init_handler;
1126 io_service_ptr m_io_service;
1127 bool m_external_io_service;
1128 acceptor_ptr m_acceptor;
1129 resolver_ptr m_resolver;
1133 int m_listen_backlog;