mirror of
https://github.com/matrix-construct/construct
synced 2024-12-30 17:34:04 +01:00
160 lines
2.9 KiB
C++
160 lines
2.9 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.
|
|
|
|
//TODO: XXX remove fwd decl
|
|
namespace ircd::m::dbs
|
|
{
|
|
void _index_event_horizon(db::txn &, const event &, const write_opts &, const m::event::id &);
|
|
}
|
|
|
|
size_t
|
|
ircd::m::event::horizon::rebuild()
|
|
{
|
|
m::dbs::write_opts opts;
|
|
opts.appendix.reset();
|
|
opts.appendix.set(dbs::appendix::EVENT_HORIZON);
|
|
db::txn txn
|
|
{
|
|
*dbs::events
|
|
};
|
|
|
|
size_t ret(0);
|
|
m::events::for_each({0UL, -1UL}, [&ret, &txn, &opts]
|
|
(const m::event::idx &event_idx, const m::event &event)
|
|
{
|
|
const m::event::prev prev
|
|
{
|
|
event
|
|
};
|
|
|
|
m::for_each(prev, [&ret, &txn, &opts, &event_idx, &event]
|
|
(const m::event::id &event_id)
|
|
{
|
|
if(m::exists(event_id))
|
|
return true;
|
|
|
|
opts.event_idx = event_idx;
|
|
m::dbs::_index_event_horizon(txn, event, opts, event_id);
|
|
if(++ret % 1024 == 0)
|
|
log::info
|
|
{
|
|
m::log, "event::horizon rebuild @ %lu/%lu",
|
|
event_idx,
|
|
m::vm::sequence::retired,
|
|
};
|
|
|
|
return true;
|
|
});
|
|
|
|
return true;
|
|
});
|
|
|
|
txn();
|
|
return ret;
|
|
}
|
|
|
|
bool
|
|
ircd::m::event::horizon::has(const event::id &event_id)
|
|
{
|
|
char buf[m::dbs::EVENT_HORIZON_KEY_MAX_SIZE];
|
|
const string_view &key
|
|
{
|
|
m::dbs::event_horizon_key(buf, event_id, 0UL)
|
|
};
|
|
|
|
auto it
|
|
{
|
|
m::dbs::event_horizon.begin(key)
|
|
};
|
|
|
|
return bool(it);
|
|
}
|
|
|
|
size_t
|
|
ircd::m::event::horizon::count()
|
|
const
|
|
{
|
|
size_t ret(0);
|
|
for_each([&ret]
|
|
(const auto &, const auto &) noexcept
|
|
{
|
|
++ret;
|
|
return true;
|
|
});
|
|
|
|
return ret;
|
|
}
|
|
|
|
bool
|
|
ircd::m::event::horizon::has(const event::idx &event_idx)
|
|
const
|
|
{
|
|
return !for_each([&event_idx]
|
|
(const auto &, const auto &_event_idx) noexcept
|
|
{
|
|
// false to break; true to continue.
|
|
return _event_idx == event_idx? false : true;
|
|
});
|
|
}
|
|
|
|
bool
|
|
ircd::m::event::horizon::for_each(const closure_bool &closure)
|
|
const
|
|
{
|
|
if(!this->event_id)
|
|
return for_every(closure);
|
|
|
|
char buf[m::dbs::EVENT_HORIZON_KEY_MAX_SIZE];
|
|
const string_view &key
|
|
{
|
|
m::dbs::event_horizon_key(buf, event_id, 0UL)
|
|
};
|
|
|
|
for(auto it(m::dbs::event_horizon.begin(key)); it; ++it)
|
|
{
|
|
const auto &event_idx
|
|
{
|
|
std::get<0>(m::dbs::event_horizon_key(it->first))
|
|
};
|
|
|
|
if(!closure(event_id, event_idx))
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
ircd::m::event::horizon::for_every(const closure_bool &closure)
|
|
{
|
|
db::column &column{dbs::event_horizon};
|
|
for(auto it(column.begin()); it; ++it)
|
|
{
|
|
const auto &parts
|
|
{
|
|
split(it->first, "\0"_sv)
|
|
};
|
|
|
|
const auto &event_id
|
|
{
|
|
parts.first
|
|
};
|
|
|
|
const auto &event_idx
|
|
{
|
|
byte_view<event::idx>(parts.second)
|
|
};
|
|
|
|
if(!closure(event_id, event_idx))
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|