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construct/include/ircd/m/events.h

69 lines
2.1 KiB
C++

/*
* charybdis: 21st Century IRC++d
*
* Copyright (C) 2016 Charybdis Development Team
* Copyright (C) 2016 Jason Volk <jason@zemos.net>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice is present in all copies.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
#pragma once
#define HAVE_IRCD_M_EVENTS_H
namespace ircd::m::events
{
IRCD_M_EXCEPTION(m::error, INVALID_TRANSITION, http::BAD_REQUEST)
struct transition;
using transition_list = std::list<struct transition *>;
extern transition_list transitions;
extern database *events;
using cursor = db::cursor<events, m::event>;
using const_iterator = cursor::const_iterator;
using iterator = const_iterator;
using where = cursor::where_type;
const_iterator find(const id &);
const_iterator begin();
const_iterator end();
void insert(event &);
void insert(const event &);
}
struct ircd::m::events::transition
{
struct method
{
std::function<bool (const event &)> valid;
std::function<void (const event &) noexcept> effects;
};
const char *name;
struct method method;
unique_const_iterator<events::transition_list> it;
virtual bool valid(const event &event) const;
virtual void effects(const event &e);
transition(const char *const &name, struct method method);
transition(const char *const &name);
virtual ~transition() noexcept;
};