text: /******************************************************************************
   *                       ____    _    _____                                   *
   *                      / ___|  / \  |  ___|    C++                           *
   *                     | |     / _ \ | |_       Actor                         *
   *                     | |___ / ___ \|  _|      Framework                     *
   *                      \____/_/   \_|_|                                      *
   *                                                                            *
   * Copyright 2011-2018 Dominik Charousset                                     *
   *                                                                            *
   * Distributed under the terms and conditions of the BSD 3-Clause License or  *
   * (at your option) under the terms and conditions of the Boost Software      *
   * License 1.0. See accompanying files LICENSE and LICENSE_ALTERNATIVE.       *
   *                                                                            *
   * If you did not receive a copy of the license files, see                    *
   * http://opensource.org/licenses/BSD-3-Clause and                            *
   * http://www.boost.org/LICENSE_1_0.txt.                                      *
   ******************************************************************************/
  
  #include "caf/openssl/remote_actor.hpp"
  
  #include "caf/atom.hpp"
  #include "caf/expected.hpp"
  #include "caf/function_view.hpp"
  #include "caf/sec.hpp"
  
  #include "caf/openssl/manager.hpp"
  
  namespace caf::openssl {
  
  /// Establish a new connection to the actor at `host` on given `port`.
  /// @param host Valid hostname or IP address.
  /// @param port TCP port.
  /// @returns An `actor` to the proxy instance representing
  ///          a remote actor or an `error`.
  expected<strong_actor_ptr> remote_actor(actor_system& sys,
                                          const std::set<std::string>& mpi,
                                          std::string host, uint16_t port) {
    CAF_LOG_TRACE(CAF_ARG(mpi) << CAF_ARG(host) << CAF_ARG(port));
    expected<strong_actor_ptr> res{strong_actor_ptr{nullptr}};
    auto f = make_function_view(sys.openssl_manager().actor_handle());
    auto x = f(connect_atom::value, std::move(host), port);
    if (!x)
      return std::move(x.error());
    auto& tup = *x;
    auto& ptr = get<1>(tup);
    if (!ptr)
      return sec::no_actor_published_at_port;
    auto& found_mpi = get<2>(tup);
    if (sys.assignable(found_mpi, mpi))
      return std::move(ptr);
    return sec::unexpected_actor_messaging_interface;
  }
  
  } // namespace caf
  