Function main

src/launcher/default_executor.cpp:1686–1835

int main(int argc, char** argv)
{
  mesos::FrameworkID frameworkId;
  mesos::ExecutorID executorId;
  string scheme = "http"; // Default scheme.
  ::URL agent;
  string sandboxDirectory;
  Flags flags;

  // Load flags from command line.
  Try<flags::Warnings> load = flags.load(None(), &argc, &argv);

  if (flags.help) {
    cout << flags.usage() << endl;
    return EXIT_SUCCESS;
  }

  if (load.isError()) {
    cerr << flags.usage(load.error()) << endl;
    return EXIT_FAILURE;
  }

  mesos::internal::logging::initialize(argv[0], true, flags); // Catch signals.

  // Log any flag warnings (after logging is initialized).
  foreach (const flags::Warning& warning, load->warnings) {
    LOG(WARNING) << warning.message;
  }

  Option<string> value = os::getenv("MESOS_FRAMEWORK_ID");
  if (value.isNone()) {
    EXIT(EXIT_FAILURE)
      << "Expecting 'MESOS_FRAMEWORK_ID' to be set in the environment";
  }
  frameworkId.set_value(value.get());

  value = os::getenv("MESOS_EXECUTOR_ID");
  if (value.isNone()) {
    EXIT(EXIT_FAILURE)
      << "Expecting 'MESOS_EXECUTOR_ID' to be set in the environment";
  }
  executorId.set_value(value.get());

#ifdef USE_SSL_SOCKET
  // TODO(gkleiman): Update this once the deprecation cycle is over (see
  // MESOS-6492).
  value = os::getenv("SSL_ENABLED");
  if (value.isNone()) {
    value = os::getenv("LIBPROCESS_SSL_ENABLED");
  }

  if (value.isSome() && (value.get() == "1" || value.get() == "true")) {
    scheme = "https";
  }
#endif

  value = os::getenv("MESOS_SLAVE_PID");
  if (value.isNone()) {