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https://issues.apache.org/jira/browse/PROTON-1442?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17915739#comment-17915739
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ASF GitHub Bot commented on PROTON-1442:
----------------------------------------
pematous commented on code in PR #437:
URL: https://github.com/apache/qpid-proton/pull/437#discussion_r1923949914
##########
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);
+ current_batch += 1;
+ if(current_batch == batch_size) {
+ transaction = proton::transaction(); // null
+ }
+ }
+
+ void on_transaction_committed(proton::transaction t) override {
+ committed += current_batch;
+ current_batch = 0;
+ std::cout<<" [OnTxnCommitted] Committed:"<< committed<< std::endl;
+ if(committed == expected) {
+ std::cout << "All messages committed" << std::endl;
+ t.connection().close();
+ }
+ else {
+ session.declare_transaction(*this);
+ }
+ }
+
+};
+
+int main(int argc, char **argv) {
+ std::string address("127.0.0.1:5672/examples");
+ int message_count = 9;
Review Comment:
I would expect the defaults to be the same for tx_send and tx_recv
(currently tx_send defaults to 6 messages while tx_recv to 9)
> [c++] Support for transactions
> ------------------------------
>
> Key: PROTON-1442
> URL: https://issues.apache.org/jira/browse/PROTON-1442
> Project: Qpid Proton
> Issue Type: Improvement
> Components: cpp-binding
> Reporter: Radim Kubis
> Assignee: Rakhi Kumari
> Priority: Major
>
> Support for transactions in Qpid Proton C++.
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