bigsnitch/networkthread.cpp

#include "networkthread.h"
#include <iostream>

NetworkThread::NetworkThread(QObject *parent) :
        QObject(parent),
        context(1)
{

}

void NetworkThread::connect() {
    socket = new zmq::socket_t(context, zmq::socket_type::pair);
    int linger = 0;
    socket->setsockopt(ZMQ_LINGER, &linger, sizeof (linger));
    try {
        socket->bind("tcp://127.0.0.1:12345");
    } catch (zmq::error_t err) {
        qDebug() << "failed binding socket" << err.what();
        emit error(err.what());
        throw;
    };
    qDebug() << "connected";
}

void NetworkThread::disconnect() {
    delete socket;
    qDebug() << "disconnected";
}

void NetworkThread::reconnect() {
    this->disconnect();
    this->connect();
}

void NetworkThread::process() {
    connect();
    while(true) {
        zmq::message_t response;
        const auto ret = socket->recv(response, zmq::recv_flags::dontwait);
        if(!ret) {
            continue;
        }
        json j;
        try {
            j = json::parse(response.to_string());
        } catch (nlohmann::detail::parse_error& err) {
            qDebug() << err.what();
            qDebug() << "malformed json received " << response.to_string().c_str();
        }
        //std::cout << std::setw(4) << j << "\n\n";
        std::string msg_type;
        if(!json_get(j, msg_type, "msg")) {
            qDebug() << "broken message received " << response.to_string().c_str();
        } else if(msg_type == "response") {
            qDebug() << "received " << msg_type.c_str();
            emit httpMessage(j);
        } else if(msg_type == "request") {
            qDebug() << "received " << msg_type.c_str();
        } else if(msg_type == "ping") {
            qDebug() << "received " << msg_type.c_str();
        } else {
            qDebug() << "unknown or broken message type received: " << msg_type.c_str();
        }

        qDebug() << "sending ack";
        std::string m = "{\"msg\": \"ack\"}";
        socket->send(zmq::buffer(m.c_str(), m.length()), zmq::send_flags::dontwait);
    }
}