CCats/gui/src/main.cpp

#include <QGuiApplication>
#include <QObject>
#include <QQmlApplicationEngine>
#include <QQmlComponent>
#include <QQmlContext>
#include <csignal>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <iostream>
#include <sys/prctl.h>
#include <sys/wait.h>
#include <unistd.h>

#include "qmlhandler.h"

using namespace std;
int inpipefd[2];
int outpipefd[2];
char buf[1024];

int main(int argc, char *argv[]) {
  qInfo() << "Program Start";

  pid_t pid = 0;
  char msg[256];
  int status;

  pipe(inpipefd);
  pipe(outpipefd);
  pid = fork();
  if (pid == 0) {
    // Child
    dup2(outpipefd[0], STDIN_FILENO);
    dup2(inpipefd[1], STDOUT_FILENO);
    dup2(inpipefd[1], STDERR_FILENO);

    // ask kernel to deliver SIGTERM in case the parent dies
    prctl(PR_SET_PDEATHSIG, SIGTERM);

    // Set the path to the CLI - pass argument h (help) for now
    // TODO: Change hardcoded path
    execl("../../cli/build/ccats-cli", "ccats-cli", "127.0.0.1", "--machine",
          (char *)NULL);

    exit(1);
  }

  close(outpipefd[0]);
  close(inpipefd[1]);

  // ########## Load GUI ##########

  QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);

  // This has to be here to fix warnings
  QCoreApplication::setOrganizationName("CCats");

  QGuiApplication app(argc, argv);

  QQmlApplicationEngine engine;

  QMLHandler qmlHandler;

  engine.rootContext()->setContextProperty("_qmlHandler", &qmlHandler);

  QQmlComponent component(&engine, QUrl(QStringLiteral("qrc:/main.qml")));

  QObject *object = component.create();

  return app.exec();
}