Function main

src/examples/long_lived_framework.cpp:557–685

int main(int argc, char** argv)
{
  Flags flags;
  Try<flags::Warnings> load = flags.load("MESOS_EXAMPLE_", argc, argv);

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

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

  mesos::internal::logging::initialize(argv[0], false);

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

  const Resources resources = Resources::parse(
      "cpus:" + stringify(CPUS_PER_EXECUTOR) +
      ";mem:" + stringify(MEM_PER_EXECUTOR)).get();

  ExecutorInfo executor;
  executor.mutable_executor_id()->set_value("default");
  executor.mutable_resources()->CopyFrom(resources);
  executor.set_name(EXECUTOR_NAME);

  // Determine the command to run the executor based on three possibilities:
  //   1) `--executor_command` was set, which overrides the below cases.
  //   2) We are in the Mesos build directory, so the targeted executable
  //      is actually a libtool wrapper script.
  //   3) We have not detected the Mesos build directory, so assume the
  //      executor is in the same directory as the framework.
  string command;

  // Find this executable's directory to locate executor.
  if (flags.executor_command.isSome()) {
    command = flags.executor_command.get();
  } else if (flags.build_dir.isSome()) {
    command = path::join(flags.build_dir.get(), "src", EXECUTOR_BINARY);
  } else {
    command =
      path::join(os::realpath(Path(argv[0]).dirname()).get(), EXECUTOR_BINARY);
  }

  executor.mutable_command()->set_value(command);

  if (flags.executor_uris.isSome() && flags.executor_uri.isSome()) {
    EXIT(EXIT_FAILURE)
      << "Flag '--executor_uris' shall not be used with '--executor_uri'";
  }

  // Copy `--executor_uri` into the command.
  if (flags.executor_uri.isSome()) {