qd_link_t *qd_link(qd_node_t *node, qd_connection_t *conn, qd_direction_t dir, const char* name) { qd_link_t *link = new_qd_link_t(); link->pn_sess = pn_session(qd_connection_pn(conn)); pn_session_set_incoming_capacity(link->pn_sess, 1000000); if (dir == QD_OUTGOING) link->pn_link = pn_sender(link->pn_sess, name); else link->pn_link = pn_receiver(link->pn_sess, name); link->direction = dir; link->context = node->context; link->node = node; link->drain_mode = pn_link_get_drain(link->pn_link); link->remote_snd_settle_mode = pn_link_remote_snd_settle_mode(link->pn_link); link->close_sess_with_link = true; // // Keep the borrowed references // pn_incref(link->pn_link); pn_incref(link->pn_sess); pn_link_set_context(link->pn_link, link); pn_session_open(link->pn_sess); return link; }
void messaging_adapter::on_session_remote_open(proton_event &pe) { pn_session_t *session = pn_event_session(pe.pn_event()); class session s(make_wrapper(session)); delegate_.on_session_open(s); if (!is_local_open(pn_session_state(session)) && is_local_unititialised(pn_session_state(session))) { pn_session_open(session); } }
void process_connection(ldp_connection_t *conn, pn_event_t *event) { fprintf(stderr, "connection event %s\n", pn_event_type_name(pn_event_type(event))); if (pn_event_type(event) == PN_CONNECTION_REMOTE_STATE) { pn_session_t *session = pn_session(pn_event_connection(event)); pn_session_open(session); } }
static void pn_handshaker_dispatch(pn_handler_t *handler, pn_event_t *event, pn_event_type_t type) { switch (type) { case PN_CONNECTION_REMOTE_OPEN: { pn_connection_t *conn = pn_event_connection(event); if (pn_connection_state(conn) & PN_LOCAL_UNINIT) { pn_connection_open(conn); } } break; case PN_SESSION_REMOTE_OPEN: { pn_session_t *ssn = pn_event_session(event); if (pn_session_state(ssn) & PN_LOCAL_UNINIT) { pn_session_open(ssn); } } break; case PN_LINK_REMOTE_OPEN: { pn_link_t *link = pn_event_link(event); if (pn_link_state(link) & PN_LOCAL_UNINIT) { pn_terminus_copy(pn_link_source(link), pn_link_remote_source(link)); pn_terminus_copy(pn_link_target(link), pn_link_remote_target(link)); pn_link_open(link); } } break; case PN_CONNECTION_REMOTE_CLOSE: { pn_connection_t *conn = pn_event_connection(event); if (!(pn_connection_state(conn) & PN_LOCAL_CLOSED)) { pn_connection_close(conn); } } break; case PN_SESSION_REMOTE_CLOSE: { pn_session_t *ssn = pn_event_session(event); if (!(pn_session_state(ssn) & PN_LOCAL_CLOSED)) { pn_session_close(ssn); } } break; case PN_LINK_REMOTE_CLOSE: { pn_link_t *link = pn_event_link(event); if (!(pn_link_state(link) & PN_LOCAL_CLOSED)) { pn_link_close(link); } } break; default: break; } }
/* Common handler for simple client/server interactions, */ static pn_event_type_t common_handler(test_handler_t *th, pn_event_t *e) { pn_connection_t *c = pn_event_connection(e); pn_listener_t *l = pn_event_listener(e); switch (pn_event_type(e)) { /* Stop on these events */ case PN_TRANSPORT_CLOSED: case PN_PROACTOR_INACTIVE: case PN_PROACTOR_TIMEOUT: case PN_LISTENER_OPEN: return pn_event_type(e); case PN_LISTENER_ACCEPT: last_accepted = pn_connection(); pn_listener_accept2(l, last_accepted, NULL); pn_listener_close(l); /* Only accept one connection */ return PN_EVENT_NONE; case PN_CONNECTION_REMOTE_OPEN: pn_connection_open(c); /* Return the open (no-op if already open) */ return PN_EVENT_NONE; case PN_SESSION_REMOTE_OPEN: pn_session_open(pn_event_session(e)); return PN_EVENT_NONE; case PN_LINK_REMOTE_OPEN: pn_link_open(pn_event_link(e)); return PN_EVENT_NONE; case PN_CONNECTION_REMOTE_CLOSE: pn_connection_close(c); /* Return the close */ return PN_EVENT_NONE; /* Ignore these events */ case PN_CONNECTION_BOUND: case PN_CONNECTION_INIT: case PN_CONNECTION_LOCAL_CLOSE: case PN_CONNECTION_LOCAL_OPEN: case PN_LINK_INIT: case PN_LINK_LOCAL_OPEN: case PN_LISTENER_CLOSE: case PN_SESSION_INIT: case PN_SESSION_LOCAL_OPEN: case PN_TRANSPORT: case PN_TRANSPORT_ERROR: case PN_TRANSPORT_HEAD_CLOSED: case PN_TRANSPORT_TAIL_CLOSED: return PN_EVENT_NONE; default: TEST_ERRORF(th->t, "unexpected event %s", pn_event_type_name(pn_event_type(e))); return PN_EVENT_NONE; /* Fail the test but keep going */ } }
session connection::default_session() { connection_context& ctx = connection_context::get(pn_object()); if (!ctx.default_session) { // Note we can't use a proton::session here because we don't want to own // a session reference. The connection owns the session, owning it here as well // would create a circular ownership. ctx.default_session = pn_session(pn_object()); pn_session_open(ctx.default_session); } return make_wrapper(ctx.default_session); }
void messaging_adapter::on_session_remote_open(event &e) { proton_event *pe = dynamic_cast<proton_event*>(&e); if (pe) { messaging_event mevent(messaging_event::SESSION_OPEN, *pe); on_session_open(mevent); pn_session_t *session = pn_event_session(pe->pn_event()); if (!is_local_open(pn_session_state(session)) && is_local_unititialised(pn_session_state(session))) { pn_session_open(session); } } }
/* Test sending/receiving a message in chunks */ static void test_message_stream(test_t *t) { test_proactor_t tps[] ={ test_proactor(t, message_stream_handler), test_proactor(t, message_stream_handler) }; pn_proactor_t *client = tps[0].proactor; pn_listener_t *l = test_listen(&tps[1], ""); struct message_stream_context ctx = { 0 }; tps[0].handler.context = &ctx; tps[1].handler.context = &ctx; /* Encode a large (not very) message to send in chunks */ char *body = (char*)malloc(BODY); memset(body, 'x', BODY); pn_message_t *m = pn_message(); pn_data_put_binary(pn_message_body(m), pn_bytes(BODY, body)); free(body); ctx.size = message_encode(m, &ctx.send_buf); pn_message_free(m); pn_connection_t *c = pn_connection(); pn_proactor_connect2(client, c, NULL, listener_info(l).connect); pn_session_t *ssn = pn_session(c); pn_session_open(ssn); pn_link_t *snd = pn_sender(ssn, "x"); pn_link_open(snd); TEST_PROACTORS_RUN_UNTIL(tps, PN_LINK_FLOW); /* Send and receive the message in chunks */ do { pn_connection_wake(c); /* Initiate send/receive of one chunk */ do { /* May be multiple receives for one send */ TEST_PROACTORS_RUN_UNTIL(tps, PN_DELIVERY); } while (ctx.received < ctx.sent); } while (!ctx.complete); TEST_CHECK(t, ctx.received == ctx.size); TEST_CHECK(t, ctx.sent == ctx.size); TEST_CHECK(t, !memcmp(ctx.send_buf.start, ctx.recv_buf.start, ctx.size)); free(ctx.send_buf.start); free(ctx.recv_buf.start); TEST_PROACTORS_DESTROY(tps); }
boost::shared_ptr<SessionContext> ConnectionContext::newSession(bool transactional, const std::string& n) { qpid::sys::ScopedLock<qpid::sys::Monitor> l(lock); if (transactional) throw qpid::messaging::MessagingException("Transactions not yet supported"); std::string name = n.empty() ? qpid::framing::Uuid(true).str() : n; SessionMap::const_iterator i = sessions.find(name); if (i == sessions.end()) { boost::shared_ptr<SessionContext> s(new SessionContext(connection)); s->session = pn_session(connection); pn_session_open(s->session); sessions[name] = s; wakeupDriver(); while (pn_session_state(s->session) & PN_REMOTE_UNINIT) { wait(); } return s; } else { throw qpid::messaging::KeyError(std::string("Session already exists: ") + name); } }
pn_link_t *pn_messenger_link(pn_messenger_t *messenger, const char *address, bool sender) { char buf[(address ? strlen(address) : 0) + 1]; if (address) { strcpy(buf, address); } else { buf[0] = '\0'; } char *domain; char *name; parse_address(address ? buf : NULL, &domain, &name); pn_connection_t *connection = pn_messenger_domain(messenger, domain); if (!connection) return NULL; pn_link_t *link = pn_link_head(connection, PN_LOCAL_ACTIVE); while (link) { if (pn_is_sender(link) == sender) { const char *terminus = pn_is_sender(link) ? pn_target(link) : pn_source(link); if (pn_streq(name, terminus)) return link; } link = pn_link_next(link, PN_LOCAL_ACTIVE); } pn_session_t *ssn = pn_session(connection); pn_session_open(ssn); link = sender ? pn_sender(ssn, "sender-xxx") : pn_receiver(ssn, "receiver-xxx"); // XXX if (sender) { pn_set_target(link, name); pn_set_source(link, name); } else { pn_set_target(link, name); pn_set_source(link, name); } pn_link_open(link); return link; }
void pn_messenger_endpoints(pn_messenger_t *messenger, pn_connection_t *conn) { if (pn_connection_state(conn) | PN_LOCAL_UNINIT) { pn_connection_open(conn); } pn_session_t *ssn = pn_session_head(conn, PN_LOCAL_UNINIT); while (ssn) { pn_session_open(ssn); ssn = pn_session_next(ssn, PN_LOCAL_UNINIT); } pn_link_t *link = pn_link_head(conn, PN_LOCAL_UNINIT); while (link) { pn_set_source(link, pn_remote_source(link)); pn_set_target(link, pn_remote_target(link)); pn_link_open(link); link = pn_link_next(link, PN_LOCAL_UNINIT); } pn_messenger_flow(messenger); ssn = pn_session_head(conn, PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED); while (ssn) { pn_session_close(ssn); ssn = pn_session_next(ssn, PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED); } link = pn_link_head(conn, PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED); while (link) { pn_link_close(link); link = pn_link_next(link, PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED); } if (pn_connection_state(conn) == (PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED)) { pn_connection_close(conn); } }
void Interconnect::process() { QPID_LOG(trace, id << " processing interconnect"); if (closeRequested) { close(); } else { if ((pn_connection_state(connection) & UNINIT) == UNINIT) { QPID_LOG_CAT(debug, model, id << " interconnect open initiated"); pn_connection_set_container(connection, getBroker().getFederationTag().c_str()); setProperties(connection); pn_connection_open(connection); out.connectionEstablished(); setInterconnectDomain(domain); } if (!isOpened && (pn_connection_state(connection) & PN_REMOTE_ACTIVE)) { QPID_LOG_CAT(debug, model, id << " interconnect open completed, attaching link"); isOpened = true; readPeerProperties(); const char* containerid(pn_connection_remote_container(connection)); if (containerid) { setContainerId(std::string(containerid)); } opened(); getBroker().getConnectionObservers().opened(*this); pn_session_t* s = pn_session(connection); pn_session_open(s); boost::shared_ptr<Session> ssn(new Session(s, *this, out)); sessions[s] = ssn; pn_link_t* l = incoming ? pn_receiver(s, name.c_str()) : pn_sender(s, name.c_str()); pn_link_open(l); ssn->attach(l, source, target, relay); } Connection::process(); } }
void session::open() { pn_session_open(pn_object()); }
int main ( int argc, char ** argv ) { char info[1000]; int expected = (argc > 1) ? atoi(argv[1]) : 100000; int received = 0; int size = 32; int msg_size = 50; bool done = false; int initial_credit = 500, new_credit = 250, low_credit_limit = 250; char const * host = "0.0.0.0"; char const * port = "5672"; bool sasl_done = false; pn_driver_t * driver; pn_listener_t * listener; pn_connector_t * connector; pn_connection_t * connection; pn_session_t * session; pn_link_t * link; pn_delivery_t * delivery; char * message_data = (char *) malloc ( MY_BUF_SIZE ); int message_data_capacity = MY_BUF_SIZE; fprintf ( stderr, "drecv expecting %d messages.\n", expected ); driver = pn_driver ( ); if ( ! pn_listener(driver, host, port, 0) ) { fprintf ( stderr, "listener creation failed.\n" ); exit ( 1 ); } while ( ! done) { pn_driver_wait ( driver, -1 ); if ( (listener = pn_driver_listener(driver)) ) pn_listener_accept( listener ); if ( (connector = pn_driver_connector(driver)) ) { pn_connector_process ( connector ); if ( ! sasl_done ) if( ! (sasl_done = get_sasl_over_with(connector) )) continue; connection = pn_connector_connection ( connector ); /*========================================================= Open everything that is ready on the other side but not here. =========================================================*/ pn_state_t hes_ready_im_not = PN_LOCAL_UNINIT | PN_REMOTE_ACTIVE; if (pn_connection_state(connection) == hes_ready_im_not) pn_connection_open( connection); for ( session = pn_session_head(connection, hes_ready_im_not); session; session = pn_session_next(session, hes_ready_im_not) ) pn_session_open(session); for ( link = pn_link_head(connection, hes_ready_im_not); link; link = pn_link_next(link, hes_ready_im_not) ) { pn_terminus_copy(pn_link_source(link), pn_link_remote_source(link)); pn_terminus_copy(pn_link_target(link), pn_link_remote_target(link)); pn_link_open ( link ); if ( pn_link_is_receiver(link) ) pn_link_flow ( link, initial_credit ); } /*========================================================== Get all available deliveries. ==========================================================*/ for ( delivery = pn_work_head ( connection ); delivery; delivery = pn_work_next ( delivery ) ) { if ( pn_delivery_readable(delivery) ) { link = pn_delivery_link ( delivery ); while ( PN_EOS != pn_link_recv(link, message_data, MY_BUF_SIZE) ) ; pn_link_advance ( link ); pn_delivery_update ( delivery, PN_ACCEPTED ); pn_delivery_settle ( delivery ); if ( ++ received >= expected ) { sprintf ( info, "received %d messages", received ); print_timestamp ( stderr, info ); done = true; } // a progress report for long tests. if ( ! (received % 5000000) ) fprintf ( stderr, "received: %d\n", received ); if ( pn_link_credit(link) <= low_credit_limit ) pn_link_flow ( link, new_credit ); } else { // TODO // Why am I getting writables? // And what to do with them? } } /*=============================================================== Shut down everything that the other side has closed. ===============================================================*/ pn_state_t active_here_closed_there = PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED; if ( pn_connection_state(connection) == active_here_closed_there ) pn_connection_close ( connection ); for ( session = pn_session_head(connection, active_here_closed_there); session; session = pn_session_next(session, active_here_closed_there) ) pn_session_close ( session ); for ( link = pn_link_head(connection, active_here_closed_there); link; link = pn_link_next(link, active_here_closed_there) ) pn_link_close ( link ); if ( pn_connector_closed(connector) ) { pn_connection_free ( pn_connector_connection(connector) ); pn_connector_free ( connector ); done = true; } else pn_connector_process(connector); } } pn_driver_free(driver); return 0; }
int pn_event_handler(void *handler_context, void *conn_context, pn_event_t *event, qd_connection_t *qd_conn) { qd_container_t *container = (qd_container_t*) handler_context; pn_connection_t *conn = qd_connection_pn(qd_conn); pn_session_t *ssn; pn_link_t *pn_link; qd_link_t *qd_link; pn_delivery_t *delivery; switch (pn_event_type(event)) { case PN_CONNECTION_REMOTE_OPEN : qd_connection_set_user(qd_conn); if (pn_connection_state(conn) & PN_LOCAL_UNINIT) { // This Open is an externally initiated connection // Let policy engine decide qd_connection_set_event_stall(qd_conn, true); qd_conn->open_container = (void *)container; qd_connection_invoke_deferred(qd_conn, qd_policy_amqp_open, qd_conn); } else { // This Open is in response to an internally initiated connection notify_opened(container, qd_conn, conn_context); } break; case PN_CONNECTION_REMOTE_CLOSE : if (pn_connection_state(conn) == (PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED)) pn_connection_close(conn); break; case PN_SESSION_REMOTE_OPEN : if (!(pn_connection_state(conn) & PN_LOCAL_CLOSED)) { ssn = pn_event_session(event); if (pn_session_state(ssn) & PN_LOCAL_UNINIT) { if (qd_conn->policy_settings) { if (!qd_policy_approve_amqp_session(ssn, qd_conn)) { break; } qd_conn->n_sessions++; } qd_policy_apply_session_settings(ssn, qd_conn); pn_session_open(ssn); } } break; case PN_SESSION_REMOTE_CLOSE : if (!(pn_connection_state(conn) & PN_LOCAL_CLOSED)) { ssn = pn_event_session(event); if (pn_session_state(ssn) == (PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED)) { // remote has nuked our session. Check for any links that were // left open and forcibly detach them, since no detaches will // arrive on this session. pn_connection_t *conn = pn_session_connection(ssn); pn_link_t *pn_link = pn_link_head(conn, PN_LOCAL_ACTIVE | PN_REMOTE_ACTIVE); while (pn_link) { if (pn_link_session(pn_link) == ssn) { qd_link_t *qd_link = (qd_link_t*) pn_link_get_context(pn_link); if (qd_link && qd_link->node) { if (qd_conn->policy_settings) { if (qd_link->direction == QD_OUTGOING) { qd_conn->n_receivers--; assert(qd_conn->n_receivers >= 0); } else { qd_conn->n_senders--; assert(qd_conn->n_senders >= 0); } } qd_log(container->log_source, QD_LOG_NOTICE, "Aborting link '%s' due to parent session end", pn_link_name(pn_link)); qd_link->node->ntype->link_detach_handler(qd_link->node->context, qd_link, QD_LOST); } } pn_link = pn_link_next(pn_link, PN_LOCAL_ACTIVE | PN_REMOTE_ACTIVE); } if (qd_conn->policy_settings) { qd_conn->n_sessions--; } pn_session_close(ssn); } } break; case PN_LINK_REMOTE_OPEN : if (!(pn_connection_state(conn) & PN_LOCAL_CLOSED)) { pn_link = pn_event_link(event); if (pn_link_state(pn_link) & PN_LOCAL_UNINIT) { if (pn_link_is_sender(pn_link)) { if (qd_conn->policy_settings) { if (!qd_policy_approve_amqp_receiver_link(pn_link, qd_conn)) { break; } qd_conn->n_receivers++; } setup_outgoing_link(container, pn_link); } else { if (qd_conn->policy_settings) { if (!qd_policy_approve_amqp_sender_link(pn_link, qd_conn)) { break; } qd_conn->n_senders++; } setup_incoming_link(container, pn_link); } } else if (pn_link_state(pn_link) & PN_LOCAL_ACTIVE) handle_link_open(container, pn_link); } break; case PN_LINK_REMOTE_CLOSE : case PN_LINK_REMOTE_DETACH : if (!(pn_connection_state(conn) & PN_LOCAL_CLOSED)) { pn_link = pn_event_link(event); qd_link = (qd_link_t*) pn_link_get_context(pn_link); if (qd_link) { qd_node_t *node = qd_link->node; qd_detach_type_t dt = pn_event_type(event) == PN_LINK_REMOTE_CLOSE ? QD_CLOSED : QD_DETACHED; if (node) node->ntype->link_detach_handler(node->context, qd_link, dt); else if (qd_link->pn_link == pn_link) { pn_link_close(pn_link); } if (qd_conn->policy_counted && qd_conn->policy_settings) { if (pn_link_is_sender(pn_link)) { qd_conn->n_receivers--; qd_log(container->log_source, QD_LOG_TRACE, "Closed receiver link %s. n_receivers: %d", pn_link_name(pn_link), qd_conn->n_receivers); assert (qd_conn->n_receivers >= 0); } else { qd_conn->n_senders--; qd_log(container->log_source, QD_LOG_TRACE, "Closed sender link %s. n_senders: %d", pn_link_name(pn_link), qd_conn->n_senders); assert (qd_conn->n_senders >= 0); } } if (qd_link->close_sess_with_link && qd_link->pn_sess && pn_link_state(pn_link) == (PN_LOCAL_CLOSED | PN_REMOTE_CLOSED)) pn_session_close(qd_link->pn_sess); } } break; case PN_LINK_FLOW : pn_link = pn_event_link(event); qd_link = (qd_link_t*) pn_link_get_context(pn_link); if (qd_link && qd_link->node && qd_link->node->ntype->link_flow_handler) qd_link->node->ntype->link_flow_handler(qd_link->node->context, qd_link); break; case PN_DELIVERY : delivery = pn_event_delivery(event); if (pn_delivery_readable(delivery)) do_receive(delivery); if (pn_delivery_updated(delivery)) { do_updated(delivery); pn_delivery_clear(delivery); } break; case PN_EVENT_NONE : case PN_REACTOR_INIT : case PN_REACTOR_QUIESCED : case PN_REACTOR_FINAL : case PN_TIMER_TASK : case PN_CONNECTION_INIT : case PN_CONNECTION_BOUND : case PN_CONNECTION_UNBOUND : case PN_CONNECTION_LOCAL_OPEN : case PN_CONNECTION_LOCAL_CLOSE : case PN_CONNECTION_FINAL : case PN_SESSION_INIT : case PN_SESSION_LOCAL_OPEN : case PN_SESSION_LOCAL_CLOSE : case PN_SESSION_FINAL : case PN_LINK_INIT : case PN_LINK_LOCAL_OPEN : case PN_LINK_LOCAL_CLOSE : case PN_LINK_LOCAL_DETACH : case PN_LINK_FINAL : case PN_TRANSPORT : case PN_TRANSPORT_ERROR : case PN_TRANSPORT_HEAD_CLOSED : case PN_TRANSPORT_TAIL_CLOSED : case PN_TRANSPORT_CLOSED : case PN_TRANSPORT_AUTHENTICATED : case PN_SELECTABLE_INIT : case PN_SELECTABLE_UPDATED : case PN_SELECTABLE_READABLE : case PN_SELECTABLE_WRITABLE : case PN_SELECTABLE_ERROR : case PN_SELECTABLE_EXPIRED : case PN_SELECTABLE_FINAL : break; } return 1; }
void Connection::process() { QPID_LOG(trace, id << " process()"); if ((pn_connection_state(connection) & REQUIRES_OPEN) == REQUIRES_OPEN) { QPID_LOG_CAT(debug, model, id << " connection opened"); pn_connection_set_container(connection, broker.getFederationTag().c_str()); pn_connection_open(connection); } for (pn_session_t* s = pn_session_head(connection, REQUIRES_OPEN); s; s = pn_session_next(s, REQUIRES_OPEN)) { QPID_LOG_CAT(debug, model, id << " session begun"); pn_session_open(s); boost::shared_ptr<Session> ssn(new Session(s, broker, *this, out)); sessions[s] = ssn; } for (pn_link_t* l = pn_link_head(connection, REQUIRES_OPEN); l; l = pn_link_next(l, REQUIRES_OPEN)) { pn_link_open(l); Sessions::iterator session = sessions.find(pn_link_session(l)); if (session == sessions.end()) { QPID_LOG(error, id << " Link attached on unknown session!"); } else { try { session->second->attach(l); QPID_LOG_CAT(debug, protocol, id << " link " << l << " attached on " << pn_link_session(l)); } catch (const std::exception& e) { QPID_LOG_CAT(error, protocol, "Error on attach: " << e.what()); //TODO: set error details on detach when that is exposed via engine API pn_link_close(l); } } } //handle deliveries for (pn_delivery_t* delivery = pn_work_head(connection); delivery; delivery = pn_work_next(delivery)) { pn_link_t* link = pn_delivery_link(delivery); if (pn_link_is_receiver(link)) { Sessions::iterator i = sessions.find(pn_link_session(link)); if (i != sessions.end()) { i->second->readable(link, delivery); } else { pn_delivery_update(delivery, PN_REJECTED); } } else { //i.e. SENDER Sessions::iterator i = sessions.find(pn_link_session(link)); if (i != sessions.end()) { QPID_LOG(trace, id << " handling outgoing delivery for " << link << " on session " << pn_link_session(link)); i->second->writable(link, delivery); } else { QPID_LOG(error, id << " Got delivery for non-existent session: " << pn_link_session(link) << ", link: " << link); } } } for (pn_link_t* l = pn_link_head(connection, REQUIRES_CLOSE); l; l = pn_link_next(l, REQUIRES_CLOSE)) { pn_link_close(l); Sessions::iterator session = sessions.find(pn_link_session(l)); if (session == sessions.end()) { QPID_LOG(error, id << " peer attempted to detach link on unknown session!"); } else { session->second->detach(l); QPID_LOG_CAT(debug, model, id << " link detached"); } } for (pn_session_t* s = pn_session_head(connection, REQUIRES_CLOSE); s; s = pn_session_next(s, REQUIRES_CLOSE)) { pn_session_close(s); Sessions::iterator i = sessions.find(s); if (i != sessions.end()) { i->second->close(); sessions.erase(i); QPID_LOG_CAT(debug, model, id << " session ended"); } else { QPID_LOG(error, id << " peer attempted to close unrecognised session"); } } if ((pn_connection_state(connection) & REQUIRES_CLOSE) == REQUIRES_CLOSE) { QPID_LOG_CAT(debug, model, id << " connection closed"); pn_connection_close(connection); } }
void sender_dispatch(pn_handler_t *h, pn_event_t *event, pn_event_type_t type) { sender_context_t *sc = sender_context(h); switch (type) { case PN_CONNECTION_INIT: { pn_connection_t *conn = pn_event_connection(event); pn_connection_set_container(conn, pn_string_get(sc->container_id)); pn_connection_set_hostname(conn, pn_string_get(sc->hostname)); pn_connection_open(conn); pn_session_t *ssn = pn_session(conn); pn_session_open(ssn); pn_link_t *snd = pn_sender(ssn, "sender"); const char *path = pn_url_get_path(sc->send_url); if (path && strlen(path)) { pn_terminus_set_address(pn_link_target(snd), path); pn_terminus_set_address(pn_link_source(snd), path); } pn_link_open(snd); } break; case PN_LINK_FLOW: { pn_link_t *snd = pn_event_link(event); while (pn_link_credit(snd) > 0 && sc->sent < sc->opts->msg_count) { if (sc->sent == 0) statistics_start(sc->stats); char tag[8]; void *ptr = &tag; *((uint64_t *) ptr) = sc->sent; pn_delivery_t *dlv = pn_delivery(snd, pn_dtag(tag, 8)); // setup the message to send pn_message_t *msg = sc->message; pn_message_set_address(msg, sc->opts->targets.addresses[0]); sc->id.u.as_ulong = sc->sent; pn_message_set_correlation_id(msg, sc->id); pn_message_set_creation_time(msg, msgr_now()); size_t size = sc->encoded_data_size; int err = pn_message_encode(msg, sc->encoded_data, &size); check(err == 0, "message encoding error"); pn_link_send(snd, sc->encoded_data, size); pn_delivery_settle(dlv); sc->sent++; } if (sc->sent == sc->opts->msg_count && !sc->opts->get_replies) { pn_link_close(snd); pn_connection_t *conn = pn_event_connection(event); pn_connection_close(conn); } } break; case PN_LINK_INIT: { pn_link_t *link = pn_event_link(event); if (pn_link_is_receiver(link)) { // Response messages link. Could manage credit and deliveries in this handler but // a dedicated handler also works. pn_handler_t *replyto = replyto_handler(sc); pn_flowcontroller_t *fc = pn_flowcontroller(1024); pn_handler_add(replyto, fc); pn_decref(fc); pn_handshaker_t *handshaker = pn_handshaker(); pn_handler_add(replyto, handshaker); pn_decref(handshaker); pn_record_t *record = pn_link_attachments(link); pn_record_set_handler(record, replyto); pn_decref(replyto); } } break; case PN_CONNECTION_LOCAL_CLOSE: { statistics_report(sc->stats, sc->sent, sc->received); } break; default: break; } }
/* runs the protocol engine, allowing it to handle TCP socket I/O and timer * events in the background. */ static void *amqp1_thread(void *arg) { DBGPRINTF("omamqp1: Protocol thread started\n"); pn_handler_t *handler = (pn_handler_t *)arg; protocolState_t *ps = PROTOCOL_STATE(handler); const configSettings_t *cfg = ps->config; // have pn_reactor_process() exit after 5 sec to poll for commands pn_reactor_set_timeout(ps->reactor, 5000); pn_reactor_start(ps->reactor); while (!ps->stopped) { // setup a connection: const char *host = pn_url_get_host(cfg->url); const char *port = pn_url_get_port(cfg->url); if (!port) port = "5672"; #if PN_VERSION_MAJOR == 0 && PN_VERSION_MINOR >= 13 ps->conn = pn_reactor_connection_to_host(ps->reactor, host, port, handler); pn_connection_set_hostname(ps->conn, host); #else { char host_addr[300]; ps->conn = pn_reactor_connection(ps->reactor, handler); snprintf(host_addr, sizeof(host_addr), "%s:%s", host, port); pn_connection_set_hostname(ps->conn, host_addr); } #endif pn_connection_set_container(ps->conn, "rsyslogd-omamqp1"); #if PN_VERSION_MAJOR == 0 && PN_VERSION_MINOR >= 10 // proton version <= 0.9 did not support Cyrus SASL const char *user = cfg->username ? (char *)cfg->username : pn_url_get_username(cfg->url); if (user) pn_connection_set_user(ps->conn, user); const char *pword = cfg->password ? (char *) cfg->password : pn_url_get_password(cfg->url); if (pword) pn_connection_set_password(ps->conn, pword); #endif pn_connection_open(ps->conn); pn_session_t *ssn = pn_session(ps->conn); pn_session_open(ssn); ps->sender = pn_sender(ssn, (char *)cfg->target); pn_link_set_snd_settle_mode(ps->sender, PN_SND_UNSETTLED); char *addr = (char *)ps->config->target; pn_terminus_set_address(pn_link_target(ps->sender), addr); pn_terminus_set_address(pn_link_source(ps->sender), addr); pn_link_open(ps->sender); // run the protocol engine until the connection closes or thread is shut down sbool engine_running = true; while (engine_running) { engine_running = pn_reactor_process(ps->reactor); _poll_command(ps); } DBGPRINTF("omamqp1: reactor finished\n"); _abort_command(ps); // unblock main thread if necessary // delay reconnectDelay seconds before re-connecting: int delay = ps->config->reconnectDelay; while (delay-- > 0 && !ps->stopped) { srSleep(1, 0); _poll_command(ps); } } pn_reactor_stop(ps->reactor); // stop command is now done: threadIPC_t *ipc = ps->ipc; pthread_mutex_lock(&ipc->lock); ipc->result = RS_RET_OK; ipc->command = COMMAND_DONE; pthread_cond_signal(&ipc->condition); pthread_mutex_unlock(&ipc->lock); DBGPRINTF("omamqp1: Protocol thread stopped\n"); return 0; }
void connection_dispatch(pn_handler_t *h, pn_event_t *event, pn_event_type_t type) { connection_context_t *cc = connection_context(h); bool replying = cc->global->opts->reply; switch (type) { case PN_LINK_REMOTE_OPEN: { pn_link_t *link = pn_event_link(event); if (pn_link_is_receiver(link)) { check(cc->recv_link == NULL, "Multiple incomming links on one connection"); cc->recv_link = link; pn_connection_t *conn = pn_event_connection(event); pn_list_add(cc->global->active_connections, conn); if (cc->global->shutting_down) { pn_connection_close(conn); break; } if (replying) { // Set up a reply link and defer granting credit to the incoming link pn_connection_t *conn = pn_session_connection(pn_link_session(link)); pn_session_t *ssn = pn_session(conn); pn_session_open(ssn); char name[100]; // prefer a multiplatform uuid generator sprintf(name, "reply_sender_%d", cc->connection_id); cc->reply_link = pn_sender(ssn, name); pn_link_open(cc->reply_link); } else { pn_flowcontroller_t *fc = pn_flowcontroller(1024); pn_handler_add(h, fc); pn_decref(fc); } } } break; case PN_LINK_FLOW: { if (replying) { pn_link_t *reply_link = pn_event_link(event); // pn_flowcontroller handles the non-reply case check(reply_link == cc->reply_link, "internal error"); // Grant the sender as much credit as just given to us for replies int delta = pn_link_credit(reply_link) - pn_link_credit(cc->recv_link); if (delta > 0) pn_link_flow(cc->recv_link, delta); } } break; case PN_DELIVERY: { pn_link_t *recv_link = pn_event_link(event); pn_delivery_t *dlv = pn_event_delivery(event); if (pn_link_is_receiver(recv_link) && !pn_delivery_partial(dlv)) { if (cc->global->received == 0) statistics_start(cc->global->stats); size_t encoded_size = pn_delivery_pending(dlv); cc->global->encoded_data = ensure_buffer(cc->global->encoded_data, encoded_size, &cc->global->encoded_data_size); check(cc->global->encoded_data, "decoding buffer realloc failure"); ssize_t n = pn_link_recv(recv_link, cc->global->encoded_data, encoded_size); check(n == (ssize_t) encoded_size, "message data read fail"); pn_message_t *msg = cc->global->message; int err = pn_message_decode(msg, cc->global->encoded_data, n); check(err == 0, "message decode error"); cc->global->received++; pn_delivery_settle(dlv); statistics_msg_received(cc->global->stats, msg); if (replying) { const char *reply_addr = pn_message_get_reply_to(msg); if (reply_addr) { pn_link_t *rl = cc->reply_link; check(pn_link_credit(rl) > 0, "message received without corresponding reply credit"); LOG("Replying to: %s\n", reply_addr ); pn_message_set_address(msg, reply_addr); pn_message_set_creation_time(msg, msgr_now()); char tag[8]; void *ptr = &tag; *((uint64_t *) ptr) = cc->global->sent; pn_delivery_t *dlv = pn_delivery(rl, pn_dtag(tag, 8)); size_t size = cc->global->encoded_data_size; int err = pn_message_encode(msg, cc->global->encoded_data, &size); check(err == 0, "message encoding error"); pn_link_send(rl, cc->global->encoded_data, size); pn_delivery_settle(dlv); cc->global->sent++; } } } if (cc->global->received >= cc->global->opts->msg_count) { global_shutdown(cc->global); } } break; case PN_CONNECTION_UNBOUND: { pn_connection_t *conn = pn_event_connection(event); pn_list_remove(cc->global->active_connections, conn); pn_connection_release(conn); } break; default: break; } }
void session::open(const session_options &opts) { opts.apply(*this); pn_session_open(pn_object()); }
void server_callback(pn_connector_t *ctor) { pn_sasl_t *sasl = pn_connector_sasl(ctor); while (pn_sasl_state(sasl) != PN_SASL_PASS) { switch (pn_sasl_state(sasl)) { case PN_SASL_IDLE: return; case PN_SASL_CONF: pn_sasl_mechanisms(sasl, "PLAIN ANONYMOUS"); pn_sasl_server(sasl); break; case PN_SASL_STEP: { size_t n = pn_sasl_pending(sasl); char iresp[n]; pn_sasl_recv(sasl, iresp, n); printf("%s", pn_sasl_remote_mechanisms(sasl)); printf(" response = "); pn_print_data(iresp, n); printf("\n"); pn_sasl_done(sasl, PN_SASL_OK); pn_connector_set_connection(ctor, pn_connection()); } break; case PN_SASL_PASS: break; case PN_SASL_FAIL: return; } } pn_connection_t *conn = pn_connector_connection(ctor); struct server_context *ctx = pn_connector_context(ctor); char tagstr[1024]; char msg[10*1024]; char data[ctx->size + 16]; for (int i = 0; i < ctx->size; i++) { msg[i] = 'x'; } size_t ndata = pn_message_data(data, ctx->size + 16, msg, ctx->size); if (pn_connection_state(conn) == (PN_LOCAL_UNINIT | PN_REMOTE_ACTIVE)) { pn_connection_open(conn); } pn_session_t *ssn = pn_session_head(conn, PN_LOCAL_UNINIT | PN_REMOTE_ACTIVE); while (ssn) { pn_session_open(ssn); ssn = pn_session_next(ssn, PN_LOCAL_UNINIT | PN_REMOTE_ACTIVE); } pn_link_t *link = pn_link_head(conn, PN_LOCAL_UNINIT | PN_REMOTE_ACTIVE); while (link) { printf("%s, %s\n", pn_remote_source(link), pn_remote_target(link)); pn_set_source(link, pn_remote_source(link)); pn_set_target(link, pn_remote_target(link)); pn_link_open(link); if (pn_is_receiver(link)) { pn_flow(link, 100); } else { pn_delivery(link, pn_dtag("blah", 4)); } link = pn_link_next(link, PN_LOCAL_UNINIT | PN_REMOTE_ACTIVE); } pn_delivery_t *delivery = pn_work_head(conn); while (delivery) { pn_delivery_tag_t tag = pn_delivery_tag(delivery); pn_quote_data(tagstr, 1024, tag.bytes, tag.size); pn_link_t *link = pn_link(delivery); if (pn_readable(delivery)) { if (!ctx->quiet) { printf("received delivery: %s\n", tagstr); printf(" payload = \""); } while (true) { ssize_t n = pn_recv(link, msg, 1024); if (n == PN_EOS) { pn_advance(link); pn_disposition(delivery, PN_ACCEPTED); break; } else if (!ctx->quiet) { pn_print_data(msg, n); } } if (!ctx->quiet) printf("\"\n"); if (pn_credit(link) < 50) pn_flow(link, 100); } else if (pn_writable(delivery)) { pn_send(link, data, ndata); if (pn_advance(link)) { if (!ctx->quiet) printf("sent delivery: %s\n", tagstr); char tagbuf[16]; sprintf(tagbuf, "%i", ctx->count++); pn_delivery(link, pn_dtag(tagbuf, strlen(tagbuf))); } } if (pn_updated(delivery)) { if (!ctx->quiet) printf("disposition for %s: %u\n", tagstr, pn_remote_disposition(delivery)); pn_settle(delivery); } delivery = pn_work_next(delivery); } if (pn_connection_state(conn) == (PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED)) { pn_connection_close(conn); } ssn = pn_session_head(conn, PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED); while (ssn) { pn_session_close(ssn); ssn = pn_session_next(ssn, PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED); } link = pn_link_head(conn, PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED); while (link) { pn_link_close(link); link = pn_link_next(link, PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED); } }
void client_callback(pn_connector_t *ctor) { struct client_context *ctx = pn_connector_context(ctor); if (pn_connector_closed(ctor)) { ctx->done = true; } pn_sasl_t *sasl = pn_connector_sasl(ctor); while (pn_sasl_state(sasl) != PN_SASL_PASS) { pn_sasl_state_t st = pn_sasl_state(sasl); switch (st) { case PN_SASL_IDLE: return; case PN_SASL_CONF: if (ctx->mechanism && !strcmp(ctx->mechanism, "PLAIN")) { pn_sasl_plain(sasl, ctx->username, ctx->password); } else { pn_sasl_mechanisms(sasl, ctx->mechanism); pn_sasl_client(sasl); } break; case PN_SASL_STEP: if (pn_sasl_pending(sasl)) { fprintf(stderr, "challenge failed\n"); ctx->done = true; } return; case PN_SASL_FAIL: fprintf(stderr, "authentication failed\n"); ctx->done = true; return; case PN_SASL_PASS: break; } } pn_connection_t *connection = pn_connector_connection(ctor); char tagstr[1024]; char msg[ctx->size]; char data[ctx->size + 16]; for (int i = 0; i < ctx->size; i++) { msg[i] = 'x'; } size_t ndata = pn_message_data(data, ctx->size + 16, msg, ctx->size); if (!ctx->init) { ctx->init = true; char container[1024]; if (gethostname(container, 1024)) pn_fatal("hostname lookup failed"); pn_connection_set_container(connection, container); pn_connection_set_hostname(connection, ctx->hostname); pn_session_t *ssn = pn_session(connection); pn_connection_open(connection); pn_session_open(ssn); if (ctx->send_count) { pn_link_t *snd = pn_sender(ssn, "sender"); pn_set_target(snd, ctx->address); pn_link_open(snd); char buf[16]; for (int i = 0; i < ctx->send_count; i++) { sprintf(buf, "%x", i); pn_delivery(snd, pn_dtag(buf, strlen(buf))); } } if (ctx->recv_count) { pn_link_t *rcv = pn_receiver(ssn, "receiver"); pn_set_source(rcv, ctx->address); pn_link_open(rcv); pn_flow(rcv, ctx->recv_count < ctx->high ? ctx->recv_count : ctx->high); } } pn_delivery_t *delivery = pn_work_head(connection); while (delivery) { pn_delivery_tag_t tag = pn_delivery_tag(delivery); pn_quote_data(tagstr, 1024, tag.bytes, tag.size); pn_link_t *link = pn_link(delivery); if (pn_writable(delivery)) { pn_send(link, data, ndata); if (pn_advance(link)) { if (!ctx->quiet) printf("sent delivery: %s\n", tagstr); } } else if (pn_readable(delivery)) { if (!ctx->quiet) { printf("received delivery: %s\n", tagstr); printf(" payload = \""); } while (true) { size_t n = pn_recv(link, msg, 1024); if (n == PN_EOS) { pn_advance(link); pn_disposition(delivery, PN_ACCEPTED); pn_settle(delivery); if (!--ctx->recv_count) { pn_link_close(link); } break; } else if (!ctx->quiet) { pn_print_data(msg, n); } } if (!ctx->quiet) printf("\"\n"); if (pn_credit(link) < ctx->low && pn_credit(link) < ctx->recv_count) { pn_flow(link, (ctx->recv_count < ctx->high ? ctx->recv_count : ctx->high) - pn_credit(link)); } } if (pn_updated(delivery)) { if (!ctx->quiet) printf("disposition for %s: %u\n", tagstr, pn_remote_disposition(delivery)); pn_clear(delivery); pn_settle(delivery); if (!--ctx->send_count) { pn_link_close(link); } } delivery = pn_work_next(delivery); } if (!ctx->send_count && !ctx->recv_count) { printf("closing\n"); // XXX: how do we close the session? //pn_close((pn_endpoint_t *) ssn); pn_connection_close(connection); } if (pn_connection_state(connection) == (PN_LOCAL_CLOSED | PN_REMOTE_CLOSED)) { ctx->done = true; } }
/* Process each event posted by the reactor. */ static void event_handler(pn_handler_t *handler, pn_event_t *event, pn_event_type_t type) { app_data_t *data = GET_APP_DATA(handler); switch (type) { case PN_CONNECTION_INIT: { // Create and open all the endpoints needed to send a message // pn_connection_t *conn; pn_session_t *ssn; pn_link_t *sender; conn = pn_event_connection(event); pn_connection_open(conn); ssn = pn_session(conn); pn_session_open(ssn); sender = pn_sender(ssn, "MySender"); // we do not wait for ack until the last message pn_link_set_snd_settle_mode(sender, PN_SND_MIXED); if (!data->anon) { pn_terminus_set_address(pn_link_target(sender), data->target); } pn_link_open(sender); } break; case PN_LINK_FLOW: { // the remote has given us some credit, now we can send messages // static long tag = 0; // a simple tag generator pn_delivery_t *delivery; pn_link_t *sender = pn_event_link(event); int credit = pn_link_credit(sender); while (credit > 0 && data->count > 0) { --credit; --data->count; ++tag; delivery = pn_delivery(sender, pn_dtag((const char *)&tag, sizeof(tag))); pn_link_send(sender, data->msg_data, data->msg_len); pn_link_advance(sender); if (data->count > 0) { // send pre-settled until the last one, then wait for an ack on // the last sent message. This allows the sender to send // messages as fast as possible and then exit when the consumer // has dealt with the last one. // pn_delivery_settle(delivery); } } } break; case PN_DELIVERY: { // Since the example sends all messages but the last pre-settled // (pre-acked), only the last message's delivery will get updated with // the remote state (acked/nacked). // pn_delivery_t *dlv = pn_event_delivery(event); if (pn_delivery_updated(dlv) && pn_delivery_remote_state(dlv)) { uint64_t rs = pn_delivery_remote_state(dlv); int done = 1; switch (rs) { case PN_RECEIVED: // This is not a terminal state - it is informational, and the // peer is still processing the message. done = 0; break; case PN_ACCEPTED: pn_delivery_settle(dlv); if (!quiet) fprintf(stdout, "Send complete!\n"); break; case PN_REJECTED: case PN_RELEASED: case PN_MODIFIED: pn_delivery_settle(dlv); fprintf(stderr, "Message not accepted - code:%lu\n", (unsigned long)rs); break; default: // ??? no other terminal states defined, so ignore anything else pn_delivery_settle(dlv); fprintf(stderr, "Unknown delivery failure - code=%lu\n", (unsigned long)rs); break; } if (done) { // initiate clean shutdown of the endpoints pn_link_t *link = pn_delivery_link(dlv); pn_session_t *ssn = pn_link_session(link); pn_link_close(link); pn_session_close(ssn); pn_connection_close(pn_session_connection(ssn)); } } } break; case PN_TRANSPORT_ERROR: { // The connection to the peer failed. // pn_transport_t *tport = pn_event_transport(event); pn_condition_t *cond = pn_transport_condition(tport); fprintf(stderr, "Network transport failed!\n"); if (pn_condition_is_set(cond)) { const char *name = pn_condition_get_name(cond); const char *desc = pn_condition_get_description(cond); fprintf(stderr, " Error: %s Description: %s\n", (name) ? name : "<error name not provided>", (desc) ? desc : "<no description provided>"); } // pn_reactor_process() will exit with a false return value, stopping // the main loop. } break; default: break; } }