WebSocket++ 0.8.2
C++ websocket client/server library
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endpoint.hpp
1/*
2 * Copyright (c) 2015, Peter Thorson. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 * * Redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer.
8 * * Redistributions in binary form must reproduce the above copyright
9 * notice, this list of conditions and the following disclaimer in the
10 * documentation and/or other materials provided with the distribution.
11 * * Neither the name of the WebSocket++ Project nor the
12 * names of its contributors may be used to endorse or promote products
13 * derived from this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
19 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
22 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
24 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 */
27
28#ifndef WEBSOCKETPP_TRANSPORT_ASIO_HPP
29#define WEBSOCKETPP_TRANSPORT_ASIO_HPP
30
31#include <websocketpp/transport/base/endpoint.hpp>
32#include <websocketpp/transport/asio/connection.hpp>
33#include <websocketpp/transport/asio/security/none.hpp>
34
35#include <websocketpp/uri.hpp>
36#include <websocketpp/logger/levels.hpp>
37
38#include <websocketpp/common/asio.hpp>
39#include <websocketpp/common/functional.hpp>
40
41#include <sstream>
42#include <string>
43
44namespace websocketpp {
45namespace transport {
46namespace asio {
47
49
53template <typename config>
54class endpoint : public config::socket_type {
55public:
58
60 typedef typename config::concurrency_type concurrency_type;
62 typedef typename config::socket_type socket_type;
64 typedef typename config::elog_type elog_type;
66 typedef typename config::alog_type alog_type;
67
69 typedef typename socket_type::socket_con_type socket_con_type;
71 typedef typename socket_con_type::ptr socket_con_ptr;
72
79
81 typedef lib::asio::io_service * io_service_ptr;
83 typedef lib::shared_ptr<lib::asio::ip::tcp::acceptor> acceptor_ptr;
85 typedef lib::shared_ptr<lib::asio::ip::tcp::resolver> resolver_ptr;
87 typedef lib::shared_ptr<lib::asio::steady_timer> timer_ptr;
89 typedef lib::shared_ptr<lib::asio::io_service::work> work_ptr;
90
92 typedef lib::function<lib::error_code(acceptor_ptr)> tcp_pre_bind_handler;
93
94 // generate and manage our own io_service
95 explicit endpoint()
96 : m_io_service(NULL)
97 , m_external_io_service(false)
98 , m_listen_backlog(lib::asio::socket_base::max_connections)
99 , m_reuse_addr(false)
100 , m_state(UNINITIALIZED)
101 {
102 //std::cout << "transport::asio::endpoint constructor" << std::endl;
103 }
104
105 ~endpoint() {
106 // clean up our io_service if we were initialized with an internal one.
107
108 // Explicitly destroy local objects
109 m_acceptor.reset();
110 m_resolver.reset();
111 m_work.reset();
112 if (m_state != UNINITIALIZED && !m_external_io_service) {
113 delete m_io_service;
114 }
115 }
116
120#ifdef _WEBSOCKETPP_DEFAULT_DELETE_FUNCTIONS_
121 endpoint(const endpoint & src) = delete;
122 endpoint& operator= (const endpoint & rhs) = delete;
123#else
124private:
125 endpoint(const endpoint & src);
126 endpoint & operator= (const endpoint & rhs);
127public:
128#endif // _WEBSOCKETPP_DEFAULT_DELETE_FUNCTIONS_
129
130#ifdef _WEBSOCKETPP_MOVE_SEMANTICS_
131 endpoint (endpoint && src)
132 : config::socket_type(std::move(src))
133 , m_tcp_pre_init_handler(src.m_tcp_pre_init_handler)
134 , m_tcp_post_init_handler(src.m_tcp_post_init_handler)
135 , m_io_service(src.m_io_service)
136 , m_external_io_service(src.m_external_io_service)
137 , m_acceptor(src.m_acceptor)
138 , m_listen_backlog(lib::asio::socket_base::max_connections)
139 , m_reuse_addr(src.m_reuse_addr)
140 , m_elog(src.m_elog)
141 , m_alog(src.m_alog)
142 , m_state(src.m_state)
143 {
144 src.m_io_service = NULL;
145 src.m_external_io_service = false;
146 src.m_acceptor = NULL;
147 src.m_state = UNINITIALIZED;
148 }
149
150 /*endpoint & operator= (const endpoint && rhs) {
151 if (this != &rhs) {
152 m_io_service = rhs.m_io_service;
153 m_external_io_service = rhs.m_external_io_service;
154 m_acceptor = rhs.m_acceptor;
155 m_listen_backlog = rhs.m_listen_backlog;
156 m_reuse_addr = rhs.m_reuse_addr;
157 m_state = rhs.m_state;
158
159 rhs.m_io_service = NULL;
160 rhs.m_external_io_service = false;
161 rhs.m_acceptor = NULL;
162 rhs.m_listen_backlog = lib::asio::socket_base::max_connections;
163 rhs.m_state = UNINITIALIZED;
164
165 // TODO: this needs to be updated
166 }
167 return *this;
168 }*/
169#endif // _WEBSOCKETPP_MOVE_SEMANTICS_
170
172 bool is_secure() const {
173 return socket_type::is_secure();
174 }
175
177
185 void init_asio(io_service_ptr ptr, lib::error_code & ec) {
186 if (m_state != UNINITIALIZED) {
187 m_elog->write(log::elevel::library,
188 "asio::init_asio called from the wrong state");
189 using websocketpp::error::make_error_code;
190 ec = make_error_code(websocketpp::error::invalid_state);
191 return;
192 }
193
194 m_alog->write(log::alevel::devel,"asio::init_asio");
195
196 m_io_service = ptr;
197 m_external_io_service = true;
198 m_acceptor.reset(new lib::asio::ip::tcp::acceptor(*m_io_service));
199
200 m_state = READY;
201 ec = lib::error_code();
202 }
203
205
213 lib::error_code ec;
214 init_asio(ptr,ec);
215 if (ec) { throw exception(ec); }
216 }
217
219
227 void init_asio(lib::error_code & ec) {
228 // Use a smart pointer until the call is successful and ownership has
229 // successfully been taken. Use unique_ptr when available.
230 // TODO: remove the use of auto_ptr when C++98/03 support is no longer
231 // necessary.
232#ifdef _WEBSOCKETPP_CPP11_MEMORY_
233 lib::unique_ptr<lib::asio::io_service> service(new lib::asio::io_service());
234#else
235 lib::auto_ptr<lib::asio::io_service> service(new lib::asio::io_service());
236#endif
237 init_asio(service.get(), ec);
238 if( !ec ) service.release(); // Call was successful, transfer ownership
239 m_external_io_service = false;
240 }
241
243
249 void init_asio() {
250 // Use a smart pointer until the call is successful and ownership has
251 // successfully been taken. Use unique_ptr when available.
252 // TODO: remove the use of auto_ptr when C++98/03 support is no longer
253 // necessary.
254#ifdef _WEBSOCKETPP_CPP11_MEMORY_
255 lib::unique_ptr<lib::asio::io_service> service(new lib::asio::io_service());
256#else
257 lib::auto_ptr<lib::asio::io_service> service(new lib::asio::io_service());
258#endif
259 init_asio( service.get() );
260 // If control got this far without an exception, then ownership has successfully been taken
261 service.release();
262 m_external_io_service = false;
263 }
264
266
275 m_tcp_pre_bind_handler = h;
276 }
277
279
288 void set_tcp_pre_init_handler(tcp_init_handler h) {
289 m_tcp_pre_init_handler = h;
290 }
291
293
302 void set_tcp_init_handler(tcp_init_handler h) {
304 }
305
307
317 void set_tcp_post_init_handler(tcp_init_handler h) {
318 m_tcp_post_init_handler = h;
319 }
320
322
342 void set_listen_backlog(int backlog) {
343 m_listen_backlog = backlog;
344 }
345
347
363 void set_reuse_addr(bool value) {
364 m_reuse_addr = value;
365 }
366
368
378 lib::asio::io_service & get_io_service() {
379 return *m_io_service;
380 }
381
383
395 lib::asio::ip::tcp::endpoint get_local_endpoint(lib::asio::error_code & ec) {
396 if (m_acceptor) {
397 return m_acceptor->local_endpoint(ec);
398 } else {
399 ec = lib::asio::error::make_error_code(lib::asio::error::bad_descriptor);
400 return lib::asio::ip::tcp::endpoint();
401 }
402 }
403
405
412 void listen(lib::asio::ip::tcp::endpoint const & ep, lib::error_code & ec)
413 {
414 if (m_state != READY) {
415 m_elog->write(log::elevel::library,
416 "asio::listen called from the wrong state");
417 using websocketpp::error::make_error_code;
418 ec = make_error_code(websocketpp::error::invalid_state);
419 return;
420 }
421
422 m_alog->write(log::alevel::devel,"asio::listen");
423
424 lib::asio::error_code bec;
425
426 m_acceptor->open(ep.protocol(),bec);
427 if (bec) {ec = clean_up_listen_after_error(bec);return;}
428
429 m_acceptor->set_option(lib::asio::socket_base::reuse_address(m_reuse_addr),bec);
430 if (bec) {ec = clean_up_listen_after_error(bec);return;}
431
432 // if a TCP pre-bind handler is present, run it
433 if (m_tcp_pre_bind_handler) {
434 ec = m_tcp_pre_bind_handler(m_acceptor);
435 if (ec) {
436 ec = clean_up_listen_after_error(ec);
437 return;
438 }
439 }
440
441 m_acceptor->bind(ep,bec);
442 if (bec) {ec = clean_up_listen_after_error(bec);return;}
443
444 m_acceptor->listen(m_listen_backlog,bec);
445 if (bec) {ec = clean_up_listen_after_error(bec);return;}
446
447 // Success
448 m_state = LISTENING;
449 ec = lib::error_code();
450 }
451
452
453
455
460 void listen(lib::asio::ip::tcp::endpoint const & ep) {
461 lib::error_code ec;
462 listen(ep,ec);
463 if (ec) { throw exception(ec); }
464 }
465
467
480 template <typename InternetProtocol>
481 void listen(InternetProtocol const & internet_protocol, uint16_t port,
482 lib::error_code & ec)
483 {
484 lib::asio::ip::tcp::endpoint ep(internet_protocol, port);
485 listen(ep,ec);
486 }
487
489
501 template <typename InternetProtocol>
502 void listen(InternetProtocol const & internet_protocol, uint16_t port)
503 {
504 lib::asio::ip::tcp::endpoint ep(internet_protocol, port);
505 listen(ep);
506 }
507
509
520 void listen(uint16_t port, lib::error_code & ec) {
521 listen(lib::asio::ip::tcp::v6(), port, ec);
522 }
523
525
536 void listen(uint16_t port) {
537 listen(lib::asio::ip::tcp::v6(), port);
538 }
539
541
556 void listen(std::string const & host, std::string const & service,
557 lib::error_code & ec)
558 {
559 using lib::asio::ip::tcp;
560 tcp::resolver r(*m_io_service);
561 tcp::resolver::query query(host, service);
562 tcp::resolver::iterator endpoint_iterator = r.resolve(query);
563 tcp::resolver::iterator end;
564 if (endpoint_iterator == end) {
565 m_elog->write(log::elevel::library,
566 "asio::listen could not resolve the supplied host or service");
567 ec = make_error_code(error::invalid_host_service);
568 return;
569 }
570 listen(*endpoint_iterator,ec);
571 }
572
574
589 void listen(std::string const & host, std::string const & service)
590 {
591 lib::error_code ec;
592 listen(host,service,ec);
593 if (ec) { throw exception(ec); }
594 }
595
597
604 void stop_listening(lib::error_code & ec) {
605 if (m_state != LISTENING) {
606 m_elog->write(log::elevel::library,
607 "asio::listen called from the wrong state");
608 using websocketpp::error::make_error_code;
609 ec = make_error_code(websocketpp::error::invalid_state);
610 return;
611 }
612
613 m_acceptor->close();
614 m_state = READY;
615 ec = lib::error_code();
616 }
617
619
626 lib::error_code ec;
627 stop_listening(ec);
628 if (ec) { throw exception(ec); }
629 }
630
632
635 bool is_listening() const {
636 return (m_state == LISTENING);
637 }
638
640 std::size_t run() {
641 return m_io_service->run();
642 }
643
645
648 std::size_t run_one() {
649 return m_io_service->run_one();
650 }
651
653 void stop() {
654 m_io_service->stop();
655 }
656
658 std::size_t poll() {
659 return m_io_service->poll();
660 }
661
663 std::size_t poll_one() {
664 return m_io_service->poll_one();
665 }
666
668 void reset() {
669 m_io_service->reset();
670 }
671
673 bool stopped() const {
674 return m_io_service->stopped();
675 }
676
678
690 m_work.reset(new lib::asio::io_service::work(*m_io_service));
691 }
692
694
702 m_work.reset();
703 }
704
706
717 timer_ptr set_timer(long duration, timer_handler callback) {
718 timer_ptr new_timer = lib::make_shared<lib::asio::steady_timer>(
719 *m_io_service,
720 lib::asio::milliseconds(duration)
721 );
722
723 new_timer->async_wait(
724 lib::bind(
726 this,
727 new_timer,
728 callback,
729 lib::placeholders::_1
730 )
731 );
732
733 return new_timer;
734 }
735
737
746 lib::asio::error_code const & ec)
747 {
748 if (ec) {
749 if (ec == lib::asio::error::operation_aborted) {
750 callback(make_error_code(transport::error::operation_aborted));
751 } else {
752 m_elog->write(log::elevel::info,
753 "asio handle_timer error: "+ec.message());
754 log_err(log::elevel::info,"asio handle_timer",ec);
755 callback(socket_con_type::translate_ec(ec));
756 }
757 } else {
758 callback(lib::error_code());
759 }
760 }
761
763
769 lib::error_code & ec)
770 {
771 if (m_state != LISTENING || !m_acceptor) {
772 using websocketpp::error::make_error_code;
774 return;
775 }
776
777 m_alog->write(log::alevel::devel, "asio::async_accept");
778
779 if (config::enable_multithreading) {
780 m_acceptor->async_accept(
781 tcon->get_raw_socket(),
782 tcon->get_strand()->wrap(lib::bind(
783 &type::handle_accept,
784 this,
785 callback,
786 lib::placeholders::_1
787 ))
788 );
789 } else {
790 m_acceptor->async_accept(
791 tcon->get_raw_socket(),
792 lib::bind(
793 &type::handle_accept,
794 this,
795 callback,
796 lib::placeholders::_1
797 )
798 );
799 }
800 }
801
803
808 lib::error_code ec;
809 async_accept(tcon,callback,ec);
810 if (ec) { throw exception(ec); }
811 }
812protected:
814
823 void init_logging(const lib::shared_ptr<alog_type>& a, const lib::shared_ptr<elog_type>& e) {
824 m_alog = a;
825 m_elog = e;
826 }
827
828 void handle_accept(accept_handler callback, lib::asio::error_code const &
829 asio_ec)
830 {
831 lib::error_code ret_ec;
832
833 m_alog->write(log::alevel::devel, "asio::handle_accept");
834
835 if (asio_ec) {
836 if (asio_ec == lib::asio::errc::operation_canceled) {
837 ret_ec = make_error_code(websocketpp::error::operation_canceled);
838 } else {
839 log_err(log::elevel::info,"asio handle_accept",asio_ec);
840 ret_ec = socket_con_type::translate_ec(asio_ec);
841 }
842 }
843
844 callback(ret_ec);
845 }
846
848 // TODO: there have to be some more failure conditions here
850 using namespace lib::asio::ip;
851
852 // Create a resolver
853 if (!m_resolver) {
854 m_resolver.reset(new lib::asio::ip::tcp::resolver(*m_io_service));
855 }
856
857 tcon->set_uri(u);
858
859 std::string proxy = tcon->get_proxy();
860 std::string host;
861 std::string port;
862
863 if (proxy.empty()) {
864 host = u->get_host();
865 port = u->get_port_str();
866 } else {
867 lib::error_code ec;
868
869 uri_ptr pu = lib::make_shared<uri>(proxy);
870
871 if (!pu->get_valid()) {
872 cb(make_error_code(error::proxy_invalid));
873 return;
874 }
875
876 ec = tcon->proxy_init(u->get_authority());
877 if (ec) {
878 cb(ec);
879 return;
880 }
881
882 host = pu->get_host();
883 port = pu->get_port_str();
884 }
885
886 tcp::resolver::query query(host,port);
887
888 if (m_alog->static_test(log::alevel::devel)) {
889 m_alog->write(log::alevel::devel,
890 "starting async DNS resolve for "+host+":"+port);
891 }
892
893 timer_ptr dns_timer;
894
895 dns_timer = tcon->set_timer(
896 config::timeout_dns_resolve,
897 lib::bind(
899 this,
900 dns_timer,
901 cb,
902 lib::placeholders::_1
903 )
904 );
905
906 if (config::enable_multithreading) {
907 m_resolver->async_resolve(
908 query,
909 tcon->get_strand()->wrap(lib::bind(
910 &type::handle_resolve,
911 this,
912 tcon,
913 dns_timer,
914 cb,
915 lib::placeholders::_1,
916 lib::placeholders::_2
917 ))
918 );
919 } else {
920 m_resolver->async_resolve(
921 query,
922 lib::bind(
923 &type::handle_resolve,
924 this,
925 tcon,
926 dns_timer,
927 cb,
928 lib::placeholders::_1,
929 lib::placeholders::_2
930 )
931 );
932 }
933 }
934
936
945 lib::error_code const & ec)
946 {
947 lib::error_code ret_ec;
948
949 if (ec) {
951 m_alog->write(log::alevel::devel,
952 "asio handle_resolve_timeout timer cancelled");
953 return;
954 }
955
956 log_err(log::elevel::devel,"asio handle_resolve_timeout",ec);
957 ret_ec = ec;
958 } else {
959 ret_ec = make_error_code(transport::error::timeout);
960 }
961
962 m_alog->write(log::alevel::devel,"DNS resolution timed out");
963 m_resolver->cancel();
964 callback(ret_ec);
965 }
966
967 void handle_resolve(transport_con_ptr tcon, timer_ptr dns_timer,
968 connect_handler callback, lib::asio::error_code const & ec,
969 lib::asio::ip::tcp::resolver::iterator iterator)
970 {
971 if (ec == lib::asio::error::operation_aborted ||
972 lib::asio::is_neg(dns_timer->expires_from_now()))
973 {
974 m_alog->write(log::alevel::devel,"async_resolve cancelled");
975 return;
976 }
977
978 dns_timer->cancel();
979
980 if (ec) {
981 log_err(log::elevel::info,"asio async_resolve",ec);
982 callback(socket_con_type::translate_ec(ec));
983 return;
984 }
985
986 if (m_alog->static_test(log::alevel::devel)) {
987 std::stringstream s;
988 s << "Async DNS resolve successful. Results: ";
989
990 lib::asio::ip::tcp::resolver::iterator it, end;
991 for (it = iterator; it != end; ++it) {
992 s << (*it).endpoint() << " ";
993 }
994
995 m_alog->write(log::alevel::devel,s.str());
996 }
997
998 m_alog->write(log::alevel::devel,"Starting async connect");
999
1000 timer_ptr con_timer;
1001
1002 con_timer = tcon->set_timer(
1003 config::timeout_connect,
1004 lib::bind(
1006 this,
1007 tcon,
1008 con_timer,
1009 callback,
1010 lib::placeholders::_1
1011 )
1012 );
1013
1014 if (config::enable_multithreading) {
1015 lib::asio::async_connect(
1016 tcon->get_raw_socket(),
1017 iterator,
1018 tcon->get_strand()->wrap(lib::bind(
1019 &type::handle_connect,
1020 this,
1021 tcon,
1022 con_timer,
1023 callback,
1024 lib::placeholders::_1
1025 ))
1026 );
1027 } else {
1028 lib::asio::async_connect(
1029 tcon->get_raw_socket(),
1030 iterator,
1031 lib::bind(
1032 &type::handle_connect,
1033 this,
1034 tcon,
1035 con_timer,
1036 callback,
1037 lib::placeholders::_1
1038 )
1039 );
1040 }
1041 }
1042
1044
1054 connect_handler callback, lib::error_code const & ec)
1055 {
1056 lib::error_code ret_ec;
1057
1058 if (ec) {
1060 m_alog->write(log::alevel::devel,
1061 "asio handle_connect_timeout timer cancelled");
1062 return;
1063 }
1064
1065 log_err(log::elevel::devel,"asio handle_connect_timeout",ec);
1066 ret_ec = ec;
1067 } else {
1068 ret_ec = make_error_code(transport::error::timeout);
1069 }
1070
1071 m_alog->write(log::alevel::devel,"TCP connect timed out");
1072 tcon->cancel_socket_checked();
1073 callback(ret_ec);
1074 }
1075
1076 void handle_connect(transport_con_ptr tcon, timer_ptr con_timer,
1077 connect_handler callback, lib::asio::error_code const & ec)
1078 {
1079 if (ec == lib::asio::error::operation_aborted ||
1080 lib::asio::is_neg(con_timer->expires_from_now()))
1081 {
1082 m_alog->write(log::alevel::devel,"async_connect cancelled");
1083 return;
1084 }
1085
1086 con_timer->cancel();
1087
1088 if (ec) {
1089 log_err(log::elevel::info,"asio async_connect",ec);
1090 callback(socket_con_type::translate_ec(ec));
1091 return;
1092 }
1093
1094 if (m_alog->static_test(log::alevel::devel)) {
1095 m_alog->write(log::alevel::devel,
1096 "Async connect to "+tcon->get_remote_endpoint()+" successful.");
1097 }
1098
1099 callback(lib::error_code());
1100 }
1101
1103
1113 lib::error_code init(transport_con_ptr tcon) {
1114 m_alog->write(log::alevel::devel, "transport::asio::init");
1115
1116 // Initialize the connection socket component
1117 socket_type::init(lib::static_pointer_cast<socket_con_type,
1118 transport_con_type>(tcon));
1119
1120 lib::error_code ec;
1121
1122 ec = tcon->init_asio(m_io_service);
1123 if (ec) {return ec;}
1124
1125 tcon->set_tcp_pre_init_handler(m_tcp_pre_init_handler);
1126 tcon->set_tcp_post_init_handler(m_tcp_post_init_handler);
1127
1128 return lib::error_code();
1129 }
1130private:
1132 template <typename error_type>
1133 void log_err(log::level l, char const * msg, error_type const & ec) {
1134 std::stringstream s;
1135 s << msg << " error: " << ec << " (" << ec.message() << ")";
1136 m_elog->write(l,s.str());
1137 }
1138
1140 template <typename error_type>
1141 lib::error_code clean_up_listen_after_error(error_type const & ec) {
1142 if (m_acceptor->is_open()) {
1143 m_acceptor->close();
1144 }
1145 log_err(log::elevel::info,"asio listen",ec);
1146 return socket_con_type::translate_ec(ec);
1147 }
1148
1149 enum state {
1150 UNINITIALIZED = 0,
1151 READY = 1,
1152 LISTENING = 2
1153 };
1154
1155 // Handlers
1156 tcp_pre_bind_handler m_tcp_pre_bind_handler;
1157 tcp_init_handler m_tcp_pre_init_handler;
1158 tcp_init_handler m_tcp_post_init_handler;
1159
1160 // Network Resources
1161 io_service_ptr m_io_service;
1162 bool m_external_io_service;
1163 acceptor_ptr m_acceptor;
1164 resolver_ptr m_resolver;
1165 work_ptr m_work;
1166
1167 // Network constants
1168 int m_listen_backlog;
1169 bool m_reuse_addr;
1170
1171 lib::shared_ptr<elog_type> m_elog;
1172 lib::shared_ptr<alog_type> m_alog;
1173
1174 // Transport state
1175 state m_state;
1176};
1177
1178} // namespace asio
1179} // namespace transport
1180} // namespace websocketpp
1181
1182#endif // WEBSOCKETPP_TRANSPORT_ASIO_HPP
Creates and manages connections associated with a WebSocket endpoint.
Definition endpoint.hpp:42
Asio based connection transport component.
lib::shared_ptr< type > ptr
Type of a shared pointer to this connection transport component.
Asio based endpoint transport component.
Definition endpoint.hpp:54
std::size_t run_one()
wraps the run_one method of the internal io_service object
Definition endpoint.hpp:648
socket_type::socket_con_type socket_con_type
Type of the socket connection component.
Definition endpoint.hpp:69
void stop_listening(lib::error_code &ec)
Stop listening (exception free)
Definition endpoint.hpp:604
config::socket_type socket_type
Type of the socket policy.
Definition endpoint.hpp:62
lib::shared_ptr< lib::asio::steady_timer > timer_ptr
Type of timer handle.
Definition endpoint.hpp:87
void async_connect(transport_con_ptr tcon, uri_ptr u, connect_handler cb)
Initiate a new connection.
Definition endpoint.hpp:849
void init_asio()
Initialize asio transport with internal io_service.
Definition endpoint.hpp:249
config::elog_type elog_type
Type of the error logging policy.
Definition endpoint.hpp:64
void init_logging(const lib::shared_ptr< alog_type > &a, const lib::shared_ptr< elog_type > &e)
Initialize logging.
Definition endpoint.hpp:823
bool is_secure() const
Return whether or not the endpoint produces secure connections.
Definition endpoint.hpp:172
void init_asio(io_service_ptr ptr)
initialize asio transport with external io_service
Definition endpoint.hpp:212
lib::asio::ip::tcp::endpoint get_local_endpoint(lib::asio::error_code &ec)
Get local TCP endpoint.
Definition endpoint.hpp:395
void set_reuse_addr(bool value)
Sets whether to use the SO_REUSEADDR flag when opening listening sockets.
Definition endpoint.hpp:363
void set_tcp_init_handler(tcp_init_handler h)
Sets the tcp pre init handler (deprecated)
Definition endpoint.hpp:302
void handle_timer(timer_ptr, timer_handler callback, lib::asio::error_code const &ec)
Timer handler.
Definition endpoint.hpp:745
void start_perpetual()
Marks the endpoint as perpetual, stopping it from exiting when empty.
Definition endpoint.hpp:689
void stop()
wraps the stop method of the internal io_service object
Definition endpoint.hpp:653
std::size_t run()
wraps the run method of the internal io_service object
Definition endpoint.hpp:640
void set_tcp_post_init_handler(tcp_init_handler h)
Sets the tcp post init handler.
Definition endpoint.hpp:317
void set_listen_backlog(int backlog)
Sets the maximum length of the queue of pending connections.
Definition endpoint.hpp:342
bool stopped() const
wraps the stopped method of the internal io_service object
Definition endpoint.hpp:673
timer_ptr set_timer(long duration, timer_handler callback)
Call back a function after a period of time.
Definition endpoint.hpp:717
void init_asio(io_service_ptr ptr, lib::error_code &ec)
initialize asio transport with external io_service (exception free)
Definition endpoint.hpp:185
socket_con_type::ptr socket_con_ptr
Type of a shared pointer to the socket connection component.
Definition endpoint.hpp:71
lib::error_code init(transport_con_ptr tcon)
Initialize a connection.
asio::connection< config > transport_con_type
Definition endpoint.hpp:75
void init_asio(lib::error_code &ec)
Initialize asio transport with internal io_service (exception free)
Definition endpoint.hpp:227
void async_accept(transport_con_ptr tcon, accept_handler callback)
Accept the next connection attempt and assign it to con.
Definition endpoint.hpp:807
void listen(uint16_t port)
Set up endpoint for listening on a port.
Definition endpoint.hpp:536
void listen(std::string const &host, std::string const &service, lib::error_code &ec)
Set up endpoint for listening on a host and service (exception free)
Definition endpoint.hpp:556
endpoint< config > type
Type of this endpoint transport component.
Definition endpoint.hpp:57
lib::asio::io_service & get_io_service()
Retrieve a reference to the endpoint's io_service.
Definition endpoint.hpp:378
config::concurrency_type concurrency_type
Type of the concurrency policy.
Definition endpoint.hpp:60
std::size_t poll()
wraps the poll method of the internal io_service object
Definition endpoint.hpp:658
void stop_perpetual()
Clears the endpoint's perpetual flag, allowing it to exit when empty.
Definition endpoint.hpp:701
lib::shared_ptr< lib::asio::ip::tcp::acceptor > acceptor_ptr
Type of a shared pointer to the acceptor being used.
Definition endpoint.hpp:83
void listen(lib::asio::ip::tcp::endpoint const &ep)
Set up endpoint for listening manually.
Definition endpoint.hpp:460
void handle_resolve_timeout(timer_ptr, connect_handler callback, lib::error_code const &ec)
DNS resolution timeout handler.
Definition endpoint.hpp:944
void listen(lib::asio::ip::tcp::endpoint const &ep, lib::error_code &ec)
Set up endpoint for listening manually (exception free)
Definition endpoint.hpp:412
transport_con_type::ptr transport_con_ptr
Definition endpoint.hpp:78
lib::shared_ptr< lib::asio::io_service::work > work_ptr
Type of a shared pointer to an io_service work object.
Definition endpoint.hpp:89
void reset()
wraps the reset method of the internal io_service object
Definition endpoint.hpp:668
void set_tcp_pre_bind_handler(tcp_pre_bind_handler h)
Sets the tcp pre bind handler.
Definition endpoint.hpp:274
config::alog_type alog_type
Type of the access logging policy.
Definition endpoint.hpp:66
lib::asio::io_service * io_service_ptr
Type of a pointer to the ASIO io_service being used.
Definition endpoint.hpp:81
void listen(InternetProtocol const &internet_protocol, uint16_t port)
Set up endpoint for listening with protocol and port.
Definition endpoint.hpp:502
void set_tcp_pre_init_handler(tcp_init_handler h)
Sets the tcp pre init handler.
Definition endpoint.hpp:288
void listen(std::string const &host, std::string const &service)
Set up endpoint for listening on a host and service.
Definition endpoint.hpp:589
void handle_connect_timeout(transport_con_ptr tcon, timer_ptr, connect_handler callback, lib::error_code const &ec)
Asio connect timeout handler.
void async_accept(transport_con_ptr tcon, accept_handler callback, lib::error_code &ec)
Accept the next connection attempt and assign it to con (exception free)
Definition endpoint.hpp:768
std::size_t poll_one()
wraps the poll_one method of the internal io_service object
Definition endpoint.hpp:663
void listen(InternetProtocol const &internet_protocol, uint16_t port, lib::error_code &ec)
Set up endpoint for listening with protocol and port (exception free)
Definition endpoint.hpp:481
void listen(uint16_t port, lib::error_code &ec)
Set up endpoint for listening on a port (exception free)
Definition endpoint.hpp:520
bool is_listening() const
Check if the endpoint is listening.
Definition endpoint.hpp:635
void stop_listening()
Stop listening.
Definition endpoint.hpp:625
lib::shared_ptr< lib::asio::ip::tcp::resolver > resolver_ptr
Type of a shared pointer to the resolver being used.
Definition endpoint.hpp:85
lib::function< lib::error_code(acceptor_ptr)> tcp_pre_bind_handler
Type of socket pre-bind handler.
Definition endpoint.hpp:92
@ operation_canceled
The requested operation was canceled.
Definition error.hpp:127
@ invalid_state
The connection was in the wrong state for this operation.
Definition error.hpp:74
@ proxy_invalid
Invalid Proxy URI.
Definition base.hpp:177
@ invalid_host_service
Invalid host or service.
Definition base.hpp:180
@ operation_aborted
Operation aborted.
lib::function< void(lib::error_code const &)> accept_handler
The type and signature of the callback passed to the accept method.
Definition endpoint.hpp:69
lib::function< void(lib::error_code const &)> timer_handler
The type and signature of the callback passed to the read method.
lib::function< void(lib::error_code const &)> connect_handler
The type and signature of the callback passed to the connect method.
Definition endpoint.hpp:72
Namespace for the WebSocket++ project.
Definition base64.hpp:41
lib::shared_ptr< uri > uri_ptr
Pointer to a URI.
Definition uri.hpp:352
static level const devel
Development messages (warning: very chatty)
Definition levels.hpp:141
static level const devel
Low level debugging information (warning: very chatty)
Definition levels.hpp:63
static level const library
Definition levels.hpp:66
static level const info
Definition levels.hpp:69