pematous commented on code in PR #437: URL: https://github.com/apache/qpid-proton/pull/437#discussion_r1928454057
########## cpp/examples/tx_recv.cpp: ########## @@ -0,0 +1,129 @@ +/* + * + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + * + */ + +#include "options.hpp" + +#include <proton/connection.hpp> +#include <proton/container.hpp> +#include <proton/message.hpp> +#include <proton/message_id.hpp> +#include <proton/messaging_handler.hpp> +#include <proton/types.hpp> +#include <proton/transaction.hpp> + +#include <iostream> +#include <map> +#include <string> + +#include <chrono> +#include <thread> + +class tx_recv : public proton::messaging_handler, proton::transaction_handler { + private: + proton::receiver receiver; + std::string url; + int expected; + int batch_size; + int current_batch = 0; + int committed = 0; + + proton::session session; + proton::transaction transaction; + public: + tx_recv(const std::string &s, int c, int b): + url(s), expected(c), batch_size(b) {} + + void on_container_start(proton::container &c) override { + receiver = c.open_receiver(url); + } + + void on_session_open(proton::session &s) override { + session = s; + std::cout << " [on_session_open] declare_txn started..." << std::endl; + s.declare_transaction(*this); + std::cout << " [on_session_open] declare_txn ended..." << std::endl; + } + + void on_transaction_declare_failed(proton::transaction) {} + void on_transaction_commit_failed(proton::transaction t) { + std::cout << "Transaction Commit Failed" << std::endl; + t.connection().close(); + exit(-1); + } + + void on_transaction_declared(proton::transaction t) override { + std::cout << "[on_transaction_declared] txn called " << (&t) + << std::endl; + std::cout << "[on_transaction_declared] txn is_empty " << (t.is_empty()) + << "\t" << transaction.is_empty() << std::endl; + receiver.add_credit(batch_size); + transaction = t; + } + + void on_message(proton::delivery &d, proton::message &msg) override { + std::cout<<"# MESSAGE: " << msg.id() <<": " << msg.body() << std::endl; + transaction.accept(d); Review Comment: btw. I'm thinking if transaction.accept() does actually have any effect? I mean, when I comment it out, the program behaves the same. btw. is this transaction accept any different from delivery accept? looks both settles the messages related to the delivery. Does explicit delivery settling play role in transaction mode? or are they mutually exclusive and only commits and aborts applies? Can ie. single message in transaction be rejected while other messages accepted? I tried to accept / reject the delivery and it seems to have no effect in transaction mode (while in python, doing so makes the messages to be threat outside of the transaction, just like a normal messages, https://issues.redhat.com/browse/ENTMQCL-513). -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: dev-unsubscr...@qpid.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@qpid.apache.org For additional commands, e-mail: dev-h...@qpid.apache.org
