void start()
{
socket_.async_receive([this](boost::system::error_code const& ec,
azmq::message & msg, size_t) {
if (ec)
return;
event_t event;
msg.buffer_copy(boost::asio::buffer(&event, sizeof(event)));
events_.push_back(event);
socket_.flush();
start();
});
}
void ChannelServer::nextMonitorEvent(StreamIdx idx, azmq::socket &socket) {
auto self = shared_from_this();
socket.async_receive([this, self, idx, &socket](
const error_code &ec, azmq::message &msg, size_t) {
if (ec == errc::operation_canceled) {
// We are shutting down.
return;
}
if (ec) {
BOOST_LOG_TRIVIAL(error) << "Error receiving streaming monitor "
"event; should not happen unless there "
"is a ZeroMQ-internal problem?";
nextMonitorEvent(idx, socket);
return;
}
if (!msg.more()) {
BOOST_LOG_TRIVIAL(error) << "Streaming monitor event only consists "
"of one part; should not happen unless "
"there is a ZeroMQ-internal problem?";
nextMonitorEvent(idx, socket);
return;
}
MonitorEvent event;
msg.buffer_copy(buffer(&event, sizeof(event)));
if (event.type == ZMQ_EVENT_ACCEPTED) {
addStreamSubscription(idx);
} else if (event.type == ZMQ_EVENT_DISCONNECTED) {
removeStreamSubscription(idx);
} else {
// This might be triggered if the ZeroMQ API is changed in the
// future. Have a look at the API docs to see if we need to handle
// that event type then. Currently, all the other events should not
// be triggered during normal operation of the server.
BOOST_LOG_TRIVIAL(info)
<< "Ignoring streaming socket monitor event: type = "
<< event.type << ", value = " << event.value;
}
socket.flush();
nextMonitorEvent(idx, socket);
});
}