mirror of
https://github.com/ecency/ecency-mobile.git
synced 2024-12-21 12:21:31 +03:00
136 lines
4.9 KiB
C++
136 lines
4.9 KiB
C++
// Copyright 2008 Christophe Henry
|
|
// henry UNDERSCORE christophe AT hotmail DOT com
|
|
// This is an extended version of the state machine available in the boost::mpl library
|
|
// Distributed under the same license as the original.
|
|
// Copyright for the original version:
|
|
// Copyright 2005 David Abrahams and Aleksey Gurtovoy. Distributed
|
|
// under the Boost Software License, Version 1.0. (See accompanying
|
|
// file LICENSE_1_0.txt or copy at
|
|
// http://www.boost.org/LICENSE_1_0.txt)
|
|
|
|
#ifndef BOOST_MSM_FRONT_STATES_H
|
|
#define BOOST_MSM_FRONT_STATES_H
|
|
|
|
#include <boost/mpl/bool.hpp>
|
|
#include <boost/mpl/vector.hpp>
|
|
#include <boost/msm/front/common_states.hpp>
|
|
#include <boost/msm/row_tags.hpp>
|
|
#include <boost/msm/back/metafunctions.hpp>
|
|
|
|
namespace boost { namespace msm { namespace front
|
|
{
|
|
|
|
struct no_sm_ptr
|
|
{
|
|
// tags
|
|
typedef ::boost::mpl::bool_<false> needs_sm;
|
|
};
|
|
struct sm_ptr
|
|
{
|
|
// tags
|
|
typedef ::boost::mpl::bool_<true> needs_sm;
|
|
};
|
|
// kept for backward compatibility
|
|
struct NoSMPtr
|
|
{
|
|
// tags
|
|
typedef ::boost::mpl::bool_<false> needs_sm;
|
|
};
|
|
struct SMPtr
|
|
{
|
|
// tags
|
|
typedef ::boost::mpl::bool_<true> needs_sm;
|
|
};
|
|
|
|
// provides the typedefs and interface. Concrete states derive from it.
|
|
// template argument: pointer-to-fsm policy
|
|
template<class BASE = default_base_state,class SMPtrPolicy = no_sm_ptr>
|
|
struct state : public boost::msm::front::detail::state_base<BASE>, SMPtrPolicy
|
|
{
|
|
// tags
|
|
// default: no flag
|
|
typedef ::boost::mpl::vector0<> flag_list;
|
|
typedef ::boost::mpl::vector0<> internal_flag_list;
|
|
//default: no deferred events
|
|
typedef ::boost::mpl::vector0<> deferred_events;
|
|
};
|
|
|
|
// terminate state simply defines the TerminateFlag flag
|
|
// template argument: pointer-to-fsm policy
|
|
template<class BASE = default_base_state,class SMPtrPolicy = no_sm_ptr>
|
|
struct terminate_state : public boost::msm::front::detail::state_base<BASE>, SMPtrPolicy
|
|
{
|
|
// tags
|
|
typedef ::boost::mpl::vector0<> flag_list;
|
|
typedef ::boost::mpl::vector< boost::msm::TerminateFlag> internal_flag_list;
|
|
//default: no deferred events
|
|
typedef ::boost::mpl::vector0<> deferred_events;
|
|
};
|
|
|
|
// terminate state simply defines the InterruptedFlag and EndInterruptFlag<EndInterruptEvent> flags
|
|
// template argument: event which ends the interrupt
|
|
// template argument: pointer-to-fsm policy
|
|
template <class EndInterruptEvent,class BASE = default_base_state,class SMPtrPolicy = no_sm_ptr>
|
|
struct interrupt_state : public boost::msm::front::detail::state_base<BASE>, SMPtrPolicy
|
|
{
|
|
// tags
|
|
typedef ::boost::mpl::vector0<> flag_list;
|
|
typedef typename boost::msm::back::build_interrupt_state_flag_list<
|
|
typename boost::msm::back::get_interrupt_events<EndInterruptEvent>::type
|
|
>::type internal_flag_list;
|
|
|
|
//default: no deferred events
|
|
typedef ::boost::mpl::vector0<> deferred_events;
|
|
};
|
|
|
|
// not a state but a bunch of extra typedefs to handle direct entry into a composite state. To be derived from
|
|
// template argument: zone index of this state
|
|
template <int ZoneIndex=-1>
|
|
struct explicit_entry
|
|
{
|
|
typedef int explicit_entry_state;
|
|
enum {zone_index=ZoneIndex};
|
|
};
|
|
|
|
// to be derived from. Makes a type an entry (pseudo) state. Actually an almost full-fledged state
|
|
// template argument: containing composite
|
|
// template argument: zone index of this state
|
|
// template argument: pointer-to-fsm policy
|
|
template<int ZoneIndex=-1,class BASE = default_base_state,class SMPtrPolicy = no_sm_ptr>
|
|
struct entry_pseudo_state
|
|
: public boost::msm::front::detail::state_base<BASE>,SMPtrPolicy
|
|
{
|
|
// tags
|
|
typedef int pseudo_entry;
|
|
enum {zone_index=ZoneIndex};
|
|
typedef int explicit_entry_state;
|
|
// default: no flag
|
|
typedef ::boost::mpl::vector0<> flag_list;
|
|
typedef ::boost::mpl::vector0<> internal_flag_list;
|
|
//default: no deferred events
|
|
typedef ::boost::mpl::vector0<> deferred_events;
|
|
};
|
|
|
|
// to be derived from. Makes a state an exit (pseudo) state. Actually an almost full-fledged state
|
|
// template argument: event to forward
|
|
// template argument: pointer-to-fsm policy
|
|
template<class Event,class BASE = default_base_state,class SMPtrPolicy = no_sm_ptr>
|
|
struct exit_pseudo_state : public boost::msm::front::detail::state_base<BASE> , SMPtrPolicy
|
|
{
|
|
typedef Event event;
|
|
typedef BASE Base;
|
|
typedef SMPtrPolicy PtrPolicy;
|
|
typedef int pseudo_exit;
|
|
|
|
// default: no flag
|
|
typedef ::boost::mpl::vector0<> flag_list;
|
|
typedef ::boost::mpl::vector0<> internal_flag_list;
|
|
//default: no deferred events
|
|
typedef ::boost::mpl::vector0<> deferred_events;
|
|
};
|
|
|
|
}}}
|
|
|
|
#endif //BOOST_MSM_FRONT_STATES_H
|
|
|