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/config.hpp"
  
  #include <map>
  #include <mutex>
  #include <atomic>
  #include <stdexcept>
  
  #include "caf/atom.hpp"
  #include "caf/config.hpp"
  #include "caf/logger.hpp"
  #include "caf/message.hpp"
  #include "caf/actor_addr.hpp"
  #include "caf/actor_cast.hpp"
  #include "caf/actor_system.hpp"
  #include "caf/abstract_actor.hpp"
  #include "caf/actor_registry.hpp"
  #include "caf/execution_unit.hpp"
  #include "caf/mailbox_element.hpp"
  #include "caf/system_messages.hpp"
  #include "caf/default_attachable.hpp"
  #include "caf/actor_control_block.hpp"
  
  #include "caf/detail/disposer.hpp"
  #include "caf/detail/enum_to_string.hpp"
  #include "caf/detail/shared_spinlock.hpp"
  
  namespace caf {
  
  // exit_state_ is guaranteed to be set to 0, i.e., exit_reason::not_exited,
  // by std::atomic<> constructor
  
  actor_control_block* abstract_actor::ctrl() const {
    return actor_control_block::from(this);
  }
  
  abstract_actor::~abstract_actor() {
    // nop
  }
  
  void abstract_actor::on_destroy() {
    // nop
  }
  
  void abstract_actor::enqueue(strong_actor_ptr sender, message_id mid,
                               message msg, execution_unit* host) {
    enqueue(make_mailbox_element(sender, mid, {}, std::move(msg)), host);
  }
  
  abstract_actor::abstract_actor(actor_config& cfg)
      : abstract_channel(cfg.flags) {
    // nop
  }
  
  actor_addr abstract_actor::address() const {
    return actor_addr{actor_control_block::from(this)};
  }
  
  std::set<std::string> abstract_actor::message_types() const {
    // defaults to untyped
    return std::set<std::string>{};
  }
  
  actor_id abstract_actor::id() const noexcept {
    return actor_control_block::from(this)->id();
  }
  
  node_id abstract_actor::node() const noexcept {
    return actor_control_block::from(this)->node();
  }
  
  actor_system& abstract_actor::home_system() const noexcept {
    return *(actor_control_block::from(this)->home_system);
  }
  
  void abstract_actor::register_at_system() {
    if (getf(is_registered_flag))
      return;
    setf(is_registered_flag);
    home_system().registry().inc_running();
  }
  
  void abstract_actor::unregister_from_system() {
    if (!getf(is_registered_flag))
      return;
    unsetf(is_registered_flag);
    home_system().registry().dec_running();
  }
  
  } // namespace caf
  