pematous commented on code in PR #437: URL: https://github.com/apache/qpid-proton/pull/437#discussion_r1928449219
########## cpp/examples/tx_send.cpp: ########## @@ -0,0 +1,175 @@ +/* + * + * 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_send : public proton::messaging_handler, proton::transaction_handler { + private: + proton::sender sender; + std::string url; + int total; + int batch_size; + int sent; + int batch_index = 0; + int current_batch = 0; + int committed = 0; + int confirmed = 0; + + proton::session session; + proton::transaction transaction; + public: + tx_send(const std::string &s, int c, int b): + url(s), total(c), batch_size(b), sent(0) {} + + void on_container_start(proton::container &c) override { + sender = c.open_sender(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; + transaction = t; + + send(sender); + } + + void on_sendable(proton::sender &s) override { + std::cout << " [OnSendable] transaction: " << &transaction + << std::endl; + send(s); + } + + void send(proton::sender &s) { + static int unique_id = 10000; + while (!transaction.is_empty() && sender.credit() && + (committed + current_batch) < total) { + proton::message msg; + std::map<std::string, int> m; + m["sequence"] = committed + current_batch; + + msg.id(unique_id++); + msg.body(m); + std::cout << "##### [example] transaction send msg: " << msg + << std::endl; + transaction.send(sender, msg); + current_batch += 1; + if(current_batch == batch_size) + { + std::cout << " >> Txn attempt commit" << std::endl; + if (batch_index % 2 == 0) { + transaction.commit(); + } else { + transaction.abort(); + } + + transaction = proton::transaction(); + batch_index++; + } + } + } + + void on_tracker_accept(proton::tracker &t) override { Review Comment: I believe on_tracker_accept method is extra and is never fired. If so, counting confirmed doesn't make much sense (confirmed variable is not used to anything btw). -- 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
