nef_one_thread/pub.hpp

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/*
  SObjectizer 5.
*/
 
/*!
 * \file
 * \brief Functions for creating and binding of the single thread dispatcher
 * that provides noexcept guarantee for scheduling evt_finish demand.
 *
 * \since v.5.8.0
 */
 
#pragma once
 
#include <so_5/disp/nef_one_thread/params.hpp>
 
#include <so_5/declspec.hpp>
 
#include <so_5/disp_binder.hpp>
 
#include <string>
 
namespace so_5 {
 
namespace disp {
 
namespace nef_one_thread {
 
namespace impl
{
 
class dispatcher_handle_maker_t;
 
} /* namespace impl */
 
//
// dispatcher_handle_t
//
 
/*!
 * \brief A handle for %nef_one_thread dispatcher.
 *
 * \since v.5.8.0
 */
class [[nodiscard]] dispatcher_handle_t
  {
    friend class impl::dispatcher_handle_maker_t;
 
    //! Binder for the dispatcher.
    disp_binder_shptr_t m_binder;
 
    dispatcher_handle_t( disp_binder_shptr_t binder ) noexcept
      : m_binder{ std::move(binder) }
      {}
 
    //! Is this handle empty?
    bool
    empty() const noexcept { return !m_binder; }
 
  public :
    dispatcher_handle_t() noexcept = default;
 
    //! Get a binder for that dispatcher.
    [[nodiscard]]
    disp_binder_shptr_t
    binder() const noexcept
      {
        return m_binder;
      }
 
    //! Is this handle empty?
    operator bool() const noexcept { return empty(); }
 
    //! Does this handle contain a reference to dispatcher?
    bool
    operator!() const noexcept { return !empty(); }
 
    //! Drop the content of handle.
    void
    reset() noexcept { m_binder.reset(); }
  };
 
//
// make_dispatcher
//
/*!
 * \brief Create an instance of %nef_one_thread dispatcher.
 *
 * \par Usage sample
\code
auto my_disp = so_5::disp::nef_one_thread::make_dispatcher(
  env,
  "request_processor",
  so_5::disp::nef_one_thread::disp_params_t{}.tune_queue_params(
    []( so_5::disp::nef_one_thread::queue_traits::queue_params_t & p ) {
      p.lock_factory( so_5::disp::nef_one_thread::queue_traits::simple_lock_factory() );
    } ) );
auto coop = env.make_coop(
  // The main dispatcher for that coop will be
  // this instance of nef_one_thread dispatcher.
  my_disp.binder() );
\endcode
 *
 * \since v.5.8.0
 */
SO_5_FUNC dispatcher_handle_t
make_dispatcher(
  //! SObjectizer Environment to work in.
  environment_t & env,
  //! Value for creating names of data sources for
  //! run-time monitoring.
  const std::string_view data_sources_name_base,
  //! Parameters for the dispatcher.
  disp_params_t params );
 
//
// make_dispatcher
//
/*!
 * \brief Create an instance of %nef_one_thread dispatcher.
 *
 * \par Usage sample
\code
auto my_disp = so_5::disp::nef_one_thread::make_dispatcher(
  env,
  "request_processor" );
auto coop = env.make_coop(
  // The main dispatcher for that coop will be
  // this instance of nef_one_thread dispatcher.
  my_disp.binder() );
\endcode
 *
 * \since v.5.8.0
 */
inline dispatcher_handle_t
make_dispatcher(
  //! SObjectizer Environment to work in.
  environment_t & env,
  //! Value for creating names of data sources for
  //! run-time monitoring.
  const std::string_view data_sources_name_base )
  {
    return make_dispatcher( env, data_sources_name_base, disp_params_t{} );
  }
 
//
// make_dispatcher
//
/*!
 * \brief Create an instance of %nef_one_thread dispatcher.
 *
 * \par Usage sample
\code
auto my_disp = so_5::disp::nef_one_thread::make_dispatcher( env );
 
auto coop = env.make_coop(
  // The main dispatcher for that coop will be
  // private nef_one_thread dispatcher.
  my_disp.binder() );
\endcode
 *
 * \since v.5.8.0
 */
inline dispatcher_handle_t
make_dispatcher( environment_t & env )
  {
    return make_dispatcher( env, std::string_view{} );
  }
 
} /* namespace nef_one_thread */
 
} /* namespace disp */
 
} /* namespace so_5 */