mirror of
https://github.com/matrix-construct/construct
synced 2024-06-25 21:38:18 +02:00
153 lines
2.5 KiB
C++
153 lines
2.5 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.
|
|
|
|
ircd::mapi::header
|
|
IRCD_MODULE
|
|
{
|
|
"Matrix room library; timeline modular components."
|
|
};
|
|
|
|
uint64_t
|
|
ircd::m::latency(const room::timeline &a,
|
|
const room::timeline &b)
|
|
{
|
|
return 0UL;
|
|
}
|
|
|
|
//
|
|
// room::timeline::timeline
|
|
//
|
|
|
|
ircd::m::room::timeline::timeline(const m::room &room)
|
|
:room{room}
|
|
{
|
|
}
|
|
|
|
bool
|
|
ircd::m::room::timeline::for_each(const closure &closure)
|
|
const
|
|
{
|
|
struct coord coord;
|
|
return for_each(coord, closure);
|
|
}
|
|
|
|
bool
|
|
ircd::m::room::timeline::for_each(coord &coord,
|
|
const closure &closure)
|
|
const
|
|
{
|
|
events it
|
|
{
|
|
this->room, uint64_t(coord.y)
|
|
};
|
|
|
|
if(!it)
|
|
return true;
|
|
|
|
event::idx next(it.event_idx()); do
|
|
{
|
|
const auto last(coord);
|
|
coord = closure(coord, next);
|
|
if(coord.x == last.x && coord.y == last.y)
|
|
return true;
|
|
|
|
if(coord.y != last.y)
|
|
if(!it.seek(coord.y))
|
|
return true;
|
|
|
|
next = timeline::next(it.event_idx(), coord.x);
|
|
if(next == 0 && coord.x == 0)
|
|
continue;
|
|
|
|
if(next == it.event_idx())
|
|
return false;
|
|
|
|
if(next == 0)
|
|
coord.x = 0;
|
|
}
|
|
while(1);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
ircd::m::room::timeline::has_future(const event::id &event_id)
|
|
const
|
|
{
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
ircd::m::room::timeline::has_past(const event::id &event_id)
|
|
const
|
|
{
|
|
|
|
return true;
|
|
}
|
|
|
|
//
|
|
// static util
|
|
//
|
|
|
|
void
|
|
ircd::m::room::timeline::rebuild(const m::room &room)
|
|
{
|
|
m::room::events it
|
|
{
|
|
room, 0UL
|
|
};
|
|
|
|
if(!it)
|
|
return;
|
|
|
|
db::txn txn
|
|
{
|
|
*m::dbs::events
|
|
};
|
|
|
|
for(; it; ++it)
|
|
{
|
|
const m::event &event{*it};
|
|
m::dbs::write_opts opts;
|
|
opts.event_idx = it.event_idx();
|
|
opts.appendix.reset();
|
|
opts.appendix.set(dbs::appendix::EVENT_REFS);
|
|
opts.event_refs.reset();
|
|
opts.event_refs.set(uint(dbs::ref::NEXT));
|
|
m::dbs::write(txn, event, opts);
|
|
}
|
|
|
|
txn();
|
|
}
|
|
|
|
ircd::m::event::idx
|
|
ircd::m::room::timeline::next(const event::idx &event_idx,
|
|
const int64_t &x)
|
|
{
|
|
const m::event::refs refs
|
|
{
|
|
event_idx
|
|
};
|
|
|
|
int64_t _x(0);
|
|
event::idx ret(0);
|
|
refs.for_each(dbs::ref::NEXT, [&_x, &x, &ret]
|
|
(const auto &event_idx, const auto &)
|
|
{
|
|
if(_x++ < x)
|
|
return true;
|
|
|
|
ret = event_idx;
|
|
return false;
|
|
});
|
|
|
|
return ret;
|
|
}
|