Qpid Proton C++ API  0.37.0
simple_send.cpp

An example of sending a fixed number of messages and tracking their (asynchronous) acknowledgement. Messages are sent through the 'examples' node on an intermediary accessible on 127.0.0.1:5672.

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#include "options.hpp"
#include <proton/types.hpp>
#include <iostream>
#include <map>
class simple_send : public proton::messaging_handler {
private:
std::string url;
std::string user;
std::string password;
bool reconnect;
int sent;
int confirmed;
int total;
public:
simple_send(const std::string &s, const std::string &u, const std::string &p, bool r, int c) :
url(s), user(u), password(p), reconnect(r), sent(0), confirmed(0), total(c) {}
if (!user.empty()) co.user(user);
if (!password.empty()) co.password(password);
if (reconnect) co.reconnect(proton::reconnect_options());
sender = c.open_sender(url, co);
}
if (c.reconnected()) {
sent = confirmed; // Re-send unconfirmed messages after a reconnect
}
}
void on_sendable(proton::sender &s) override {
while (s.credit() && sent < total) {
std::map<std::string, int> m;
m["sequence"] = sent + 1;
msg.id(sent + 1);
msg.body(m);
s.send(msg);
sent++;
}
}
void on_tracker_accept(proton::tracker &t) override {
confirmed++;
if (confirmed == total) {
std::cout << "all messages confirmed" << std::endl;
}
}
sent = confirmed;
}
};
int main(int argc, char **argv) {
std::string address("127.0.0.1:5672/examples");
std::string user;
std::string password;
bool reconnect = false;
int message_count = 100;
example::options opts(argc, argv);
opts.add_value(address, 'a', "address", "connect and send to URL", "URL");
opts.add_value(user, 'u', "user", "authenticate as USER", "USER");
opts.add_value(password, 'p', "password", "authenticate with PASSWORD", "PASSWORD");
opts.add_flag(reconnect, 'r', "reconnect", "reconnect on connection failure");
opts.add_value(message_count, 'm', "messages", "send COUNT messages", "COUNT");
try {
opts.parse();
simple_send send(address, user, password, reconnect, message_count);
return 0;
} catch (const example::bad_option& e) {
std::cout << opts << std::endl << e.what() << std::endl;
} catch (const std::exception& e) {
std::cerr << e.what() << std::endl;
}
return 1;
}
Options for creating a connection.
Definition: connection_options.hpp:67
connection_options & user(const std::string &)
Set the user name used to authenticate the connection.
connection_options & password(const std::string &)
Set the password used to authenticate the connection.
connection_options & reconnect(const reconnect_options &)
Unsettled API - Set reconnect timing options.
A connection to a remote AMQP peer.
Definition: connection.hpp:47
void close()
Close the connection.
bool reconnected() const
Unsettled API - True if this connection has been automatically re-connected.
A top-level container of connections, sessions, and links.
Definition: container.hpp:49
void run()
Run the container in the current thread.
returned< sender > open_sender(const std::string &addr_url)
Open a connection and sender for addr_url.
An AMQP message.
Definition: message.hpp:48
void id(const message_id &)
Set the message ID.
void body(const value &x)
Set the body. Equivalent to body() = x.
Handler for Proton messaging events.
Definition: messaging_handler.hpp:69
virtual void on_connection_open(connection &)
The remote peer opened the connection: called once on initial open, and again on each successful auto...
virtual void on_tracker_accept(tracker &)
The receiving peer accepted a transfer.
virtual void on_sendable(sender &)
A message can be sent.
virtual void on_transport_close(transport &)
The final event for a connection: there will be no more reconnect attempts and no more event function...
virtual void on_container_start(container &)
The container event loop is starting.
Unsettled API - Options for reconnect and failover after connection loss.
Definition: reconnect_options.hpp:49
A channel for sending messages.
Definition: sender.hpp:40
tracker send(const message &m)
Send a message on the sender.
A tracker for a sent message.
Definition: tracker.hpp:41
class connection connection() const
Return the connection for this transfer.
A network channel supporting an AMQP connection.
Definition: transport.hpp:37
A connection to a remote AMQP peer.
Options for creating a connection.
A top-level container of connections, sessions, and links.
An AMQP message.
An AMQP message ID.
Handler for Proton messaging events.
Unsettled API - Options for reconnect and failover after connection loss.
A tracker for a sent message.
Proton types used to represent AMQP types.