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/*
Itay Marom
Cisco Systems, Inc.
*/
/*
Copyright (c) 2015-2015 Cisco Systems, Inc.
Licensed 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 "trex_publisher.h"
#include <zmq.h>
#include <assert.h>
#include <sstream>
#include <iostream>
/**
* create the publisher
*
*/
bool
TrexPublisher::Create(uint16_t port, bool disable){
if (disable) {
return (true);
}
m_context = zmq_ctx_new();
if ( m_context == 0 ) {
show_zmq_last_error("can't connect to ZMQ library");
}
m_publisher = zmq_socket (m_context, ZMQ_PUB);
if ( m_context == 0 ) {
show_zmq_last_error("can't create ZMQ socket");
}
std::stringstream ss;
ss << "tcp://*:" << port;
int rc = zmq_bind (m_publisher, ss.str().c_str());
if (rc != 0 ) {
show_zmq_last_error("can't bind to ZMQ socket at " + ss.str());
}
std::cout << "zmq publisher at: " << ss.str() << "\n";
return (true);
}
void
TrexPublisher::Delete(){
if (m_publisher) {
zmq_close (m_publisher);
m_publisher = NULL;
}
if (m_context) {
zmq_ctx_destroy (m_context);
m_context = NULL;
}
}
void
TrexPublisher::publish_json(const std::string &s){
if (m_publisher) {
int size = zmq_send (m_publisher, s.c_str(), s.length(), 0);
assert(size == s.length());
}
}
void
TrexPublisher::publish_event(TrexPublisherEvent *ev) {
Json::FastWriter writer;
Json::Value value;
std::string s;
value["name"] = "event";
value["type"] = ev->get_type();
ev->to_json(value["data"]);
s = writer.write(value);
publish_json(s);
}
/**
* error handling
*
*/
void
TrexPublisher::show_zmq_last_error(const std::string &err){
std::cout << " ERROR " << err << "\n";
std::cout << " ZMQ: " << zmq_strerror (zmq_errno ());
exit(-1);
}
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