mirror of
https://github.com/matrix-construct/construct
synced 2024-10-01 05:08:59 +02:00
125 lines
2.1 KiB
C++
125 lines
2.1 KiB
C++
// Matrix Construct
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//
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// Copyright (C) Matrix Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2019 Jason Volk <jason@zemos.net>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice is present in all copies. The
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// full license for this software is available in the LICENSE file.
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ircd::mapi::header
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IRCD_MODULE
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{
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"Matrix room library; timeline modular components."
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};
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uint64_t
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ircd::m::latency(const room::timeline &a,
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const room::timeline &b)
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{
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return 0UL;
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}
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//
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// room::timeline::timeline
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//
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ircd::m::room::timeline::timeline(const m::room &room)
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:room{room}
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{
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}
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bool
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ircd::m::room::timeline::for_each(const closure &closure,
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const coord &branch)
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const
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{
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m::event::refs refs
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{
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room.event_id?
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index(room.event_id):
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room::index(room)
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};
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if(!refs.idx)
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return true;
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timeline::coord coord;
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if(!closure(coord, refs.idx))
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return false;
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for(++coord.y; coord.y <= branch.y; ++coord.y, coord.x = 0)
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{
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auto idx(0);
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refs.for_each(dbs::ref::NEXT, [&coord, &branch, &idx]
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(const auto &event_idx, const auto &)
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{
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if(coord.x <= branch.x)
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idx = event_idx;
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if(coord.x < branch.x)
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{
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++coord.x;
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return true;
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}
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else return false;
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});
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if(!idx)
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return true;
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if(!closure(coord, idx))
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return false;
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refs.idx = idx;
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}
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return true;
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}
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bool
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ircd::m::room::timeline::has_future(const event::id &event_id)
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const
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{
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return true;
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}
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bool
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ircd::m::room::timeline::has_past(const event::id &event_id)
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const
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{
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return true;
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}
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void
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ircd::m::room::timeline::rebuild(const m::room &room)
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{
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m::room::messages it
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{
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room, 0UL
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};
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if(!it)
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return;
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db::txn txn
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{
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*m::dbs::events
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};
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for(; it; ++it)
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{
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const m::event &event{*it};
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m::dbs::write_opts opts;
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opts.event_idx = it.event_idx();
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opts.appendix.reset();
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opts.appendix.set(dbs::appendix::EVENT_REFS);
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opts.event_refs.reset();
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opts.event_refs.set(uint(dbs::ref::NEXT));
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m::dbs::write(txn, event, opts);
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}
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txn();
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}
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