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/asio.hpp>
39 #include <websocketpp/common/functional.hpp>
53 template <
typename config>
54 class endpoint :
public config::socket_type {
57 typedef endpoint<config>
type;
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;
97 , m_external_io_service(
false)
98 , m_listen_backlog(lib::asio::socket_base::max_connections)
100 , m_state(UNINITIALIZED)
112 if (m_state != UNINITIALIZED && !m_external_io_service) {
120 #ifdef _WEBSOCKETPP_DEFAULT_DELETE_FUNCTIONS_
121 endpoint(
const endpoint & src) =
delete;
122 endpoint& operator= (
const endpoint & rhs) =
delete;
125 endpoint(
const endpoint & src);
126 endpoint & operator= (
const endpoint & rhs);
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)
142 , m_state(src.m_state)
144 src.m_io_service = NULL;
145 src.m_external_io_service =
false;
146 src.m_acceptor = NULL;
147 src.m_state = UNINITIALIZED;
186 if (m_state != UNINITIALIZED) {
188 "asio::init_asio called from the wrong state");
197 m_external_io_service =
true;
198 m_acceptor = lib::make_shared<lib::asio::ip::tcp::acceptor>(
199 lib::ref(*m_io_service));
202 ec = lib::error_code();
234 lib::unique_ptr<lib::asio::io_service> service(
new lib::asio::io_service());
236 lib::auto_ptr<lib::asio::io_service> service(
new lib::asio::io_service());
238 init_asio(service.get(), ec);
239 if( !ec ) service.release();
240 m_external_io_service =
false;
256 lib::unique_ptr<lib::asio::io_service> service(
new lib::asio::io_service());
258 lib::auto_ptr<lib::asio::io_service> service(
new lib::asio::io_service());
260 init_asio( service.get() );
263 m_external_io_service =
false;
276 m_tcp_pre_bind_handler = h;
290 m_tcp_pre_init_handler = h;
304 set_tcp_pre_init_handler(h);
319 m_tcp_post_init_handler = h;
344 m_listen_backlog = backlog;
365 m_reuse_addr = value;
380 return *m_io_service;
398 return m_acceptor->local_endpoint(ec);
400 ec = lib::asio::error::make_error_code(lib::asio::error::bad_descriptor);
401 return lib::asio::ip::tcp::endpoint();
413 void listen(lib::asio::ip::tcp::endpoint
const & ep, lib::error_code & ec)
415 if (m_state != READY) {
417 "asio::listen called from the wrong state");
425 lib::asio::error_code bec;
427 m_acceptor->open(ep.protocol(),bec);
428 if (bec) {ec = clean_up_listen_after_error(bec);
return;}
430 m_acceptor->set_option(lib::asio::socket_base::reuse_address(m_reuse_addr),bec);
431 if (bec) {ec = clean_up_listen_after_error(bec);
return;}
434 if (m_tcp_pre_bind_handler) {
435 ec = m_tcp_pre_bind_handler(m_acceptor);
437 ec = clean_up_listen_after_error(ec);
442 m_acceptor->bind(ep,bec);
443 if (bec) {ec = clean_up_listen_after_error(bec);
return;}
445 m_acceptor->listen(m_listen_backlog,bec);
446 if (bec) {ec = clean_up_listen_after_error(bec);
return;}
450 ec = lib::error_code();
461 void listen(lib::asio::ip::tcp::endpoint
const & ep) {
481 template <
typename InternetProtocol>
482 void listen(InternetProtocol
const & internet_protocol, uint16_t port,
483 lib::error_code & ec)
485 lib::asio::ip::tcp::endpoint ep(internet_protocol, port);
502 template <
typename InternetProtocol>
503 void listen(InternetProtocol
const & internet_protocol, uint16_t port)
505 lib::asio::ip::tcp::endpoint ep(internet_protocol, port);
521 void listen(uint16_t port, lib::error_code & ec) {
522 listen(lib::asio::ip::tcp::v6(), port, ec);
538 listen(lib::asio::ip::tcp::v6(), port);
557 void listen(std::string
const & host, std::string
const & service,
558 lib::error_code & ec)
560 using lib::asio::ip::tcp;
561 tcp::resolver r(*m_io_service);
562 tcp::resolver::query query(host, service);
563 tcp::resolver::iterator endpoint_iterator = r.resolve(query);
564 tcp::resolver::iterator end;
565 if (endpoint_iterator == end) {
567 "asio::listen could not resolve the supplied host or service");
571 listen(*endpoint_iterator,ec);
590 void listen(std::string
const & host, std::string
const & service)
593 listen(host,service,ec);
606 if (m_state != LISTENING) {
608 "asio::listen called from the wrong state");
616 ec = lib::error_code();
637 return (m_state == LISTENING);
642 return m_io_service->run();
650 return m_io_service->run_one();
655 m_io_service->stop();
660 return m_io_service->poll();
665 return m_io_service->poll_one();
670 m_io_service->reset();
675 return m_io_service->stopped();
691 m_work = lib::make_shared<lib::asio::io_service::work>(
692 lib::ref(*m_io_service)
721 timer_ptr new_timer = lib::make_shared<lib::asio::steady_timer>(
723 lib::asio::milliseconds(duration)
726 new_timer->async_wait(
732 lib::placeholders::_1
749 lib::asio::error_code
const & ec)
752 if (ec == lib::asio::error::operation_aborted) {
753 callback(make_error_code(transport::error::operation_aborted));
756 "asio handle_timer error: "+ec.message());
758 callback(socket_con_type::translate_ec(ec));
761 callback(lib::error_code());
772 lib::error_code & ec)
774 if (m_state != LISTENING || !m_acceptor) {
782 if (config::enable_multithreading) {
783 m_acceptor->async_accept(
784 tcon->get_raw_socket(),
785 tcon->get_strand()->wrap(lib::bind(
786 &type::handle_accept,
789 lib::placeholders::_1
793 m_acceptor->async_accept(
794 tcon->get_raw_socket(),
796 &type::handle_accept,
799 lib::placeholders::_1
812 async_accept(tcon,callback,ec);
831 void handle_accept(
accept_handler callback, lib::asio::error_code
const &
834 lib::error_code ret_ec;
839 if (asio_ec == lib::asio::errc::operation_canceled) {
853 using namespace lib::asio::ip;
857 m_resolver = lib::make_shared<lib::asio::ip::tcp::resolver>(
858 lib::ref(*m_io_service));
863 std::string proxy = tcon->get_proxy();
868 host = u->get_host();
869 port = u->get_port_str();
873 uri_ptr pu = lib::make_shared<uri>(proxy);
875 if (!pu->get_valid()) {
876 cb(make_error_code(error::proxy_invalid));
880 ec = tcon->proxy_init(u->get_authority());
886 host = pu->get_host();
887 port = pu->get_port_str();
890 tcp::resolver::query query(host,port);
894 "starting async DNS resolve for "+host+
":"+port);
899 dns_timer = tcon->set_timer(
900 config::timeout_dns_resolve,
902 &type::handle_resolve_timeout,
906 lib::placeholders::_1
910 if (config::enable_multithreading) {
911 m_resolver->async_resolve(
913 tcon->get_strand()->wrap(lib::bind(
914 &type::handle_resolve,
919 lib::placeholders::_1,
920 lib::placeholders::_2
924 m_resolver->async_resolve(
927 &type::handle_resolve,
932 lib::placeholders::_1,
933 lib::placeholders::_2
949 lib::error_code
const & ec)
951 lib::error_code ret_ec;
956 "asio handle_resolve_timeout timer cancelled");
967 m_resolver->cancel();
973 lib::asio::ip::tcp::resolver::iterator iterator)
975 if (ec == lib::asio::error::operation_aborted ||
976 lib::asio::is_neg(dns_timer->expires_from_now()))
986 callback(socket_con_type::translate_ec(ec));
992 s <<
"Async DNS resolve successful. Results: ";
994 lib::asio::ip::tcp::resolver::iterator it, end;
995 for (it = iterator; it != end; ++it) {
996 s << (*it).endpoint() <<
" ";
1006 con_timer = tcon->set_timer(
1007 config::timeout_connect,
1009 &type::handle_connect_timeout,
1014 lib::placeholders::_1
1018 if (config::enable_multithreading) {
1019 lib::asio::async_connect(
1020 tcon->get_raw_socket(),
1022 tcon->get_strand()->wrap(lib::bind(
1023 &type::handle_connect,
1028 lib::placeholders::_1
1032 lib::asio::async_connect(
1033 tcon->get_raw_socket(),
1036 &type::handle_connect,
1041 lib::placeholders::_1
1060 lib::error_code ret_ec;
1065 "asio handle_connect_timeout timer cancelled");
1076 tcon->cancel_socket_checked();
1083 if (ec == lib::asio::error::operation_aborted ||
1084 lib::asio::is_neg(con_timer->expires_from_now()))
1090 con_timer->cancel();
1094 callback(socket_con_type::translate_ec(ec));
1100 "Async connect to "+tcon->get_remote_endpoint()+
" successful.");
1103 callback(lib::error_code());
1126 ec = tcon->init_asio(m_io_service);
1127 if (ec) {
return ec;}
1129 tcon->set_tcp_pre_init_handler(m_tcp_pre_init_handler);
1130 tcon->set_tcp_post_init_handler(m_tcp_post_init_handler);
1132 return lib::error_code();
1136 template <
typename error_type>
1137 void log_err(log::level l,
char const * msg, error_type
const & ec) {
1138 std::stringstream s;
1139 s << msg <<
" error: " << ec <<
" (" << ec.message() <<
")";
1140 m_elog->write(l,s.str());
1144 template <
typename error_type>
1145 lib::error_code clean_up_listen_after_error(error_type
const & ec) {
1146 if (m_acceptor->is_open()) {
1147 m_acceptor->close();
1161 tcp_init_handler m_tcp_pre_init_handler;
1162 tcp_init_handler m_tcp_post_init_handler;
1166 bool m_external_io_service;
1172 int m_listen_backlog;