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construct/include/ircd/m/room/timeline.h
2019-05-07 16:10:24 -07:00

46 lines
1.1 KiB
C++

// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2019 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. The
// full license for this software is available in the LICENSE file.
#pragma once
#define HAVE_IRCD_M_ROOM_TIMELINE_H
namespace ircd::m
{
uint64_t latency(const room::timeline &, const room::timeline &);
}
/// Interface to room timeline
///
struct ircd::m::room::timeline
{
struct coord;
using closure = std::function<bool (const coord &, const event::idx &)>;
m::room room;
public:
bool has_past(const event::id &) const;
bool has_future(const event::id &) const;
bool for_each(const closure &, const coord &branch) const;
timeline(const m::room &);
timeline() = default;
timeline(const timeline &) = delete;
timeline &operator=(const timeline &) = delete;
static void rebuild(const m::room &);
};
struct ircd::m::room::timeline::coord
{
int64_t x {0};
int64_t y {0};
};