mirror of
https://github.com/matrix-construct/construct
synced 2024-12-11 08:02:59 +01:00
84 lines
1.5 KiB
C++
84 lines
1.5 KiB
C++
// Matrix Construct
|
|
//
|
|
// Copyright (C) Matrix Construct Developers, Authors & Contributors
|
|
// Copyright (C) 2016-2023 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.
|
|
|
|
decltype(ircd::m::vm::sequence::dock)
|
|
ircd::m::vm::sequence::dock;
|
|
|
|
decltype(ircd::m::vm::sequence::retired)
|
|
ircd::m::vm::sequence::retired;
|
|
|
|
decltype(ircd::m::vm::sequence::committed)
|
|
ircd::m::vm::sequence::committed;
|
|
|
|
decltype(ircd::m::vm::sequence::uncommitted)
|
|
ircd::m::vm::sequence::uncommitted;
|
|
|
|
uint64_t
|
|
ircd::m::vm::sequence::min()
|
|
{
|
|
const auto *const e
|
|
{
|
|
eval::seqmin()
|
|
};
|
|
|
|
return e? get(*e) : 0;
|
|
}
|
|
|
|
uint64_t
|
|
ircd::m::vm::sequence::max()
|
|
{
|
|
const auto *const e
|
|
{
|
|
eval::seqmax()
|
|
};
|
|
|
|
return e? get(*e) : 0;
|
|
}
|
|
|
|
uint64_t
|
|
ircd::m::vm::sequence::get(id::event::buf &event_id)
|
|
{
|
|
static constexpr auto column_idx
|
|
{
|
|
json::indexof<event, "event_id"_>()
|
|
};
|
|
|
|
auto &column
|
|
{
|
|
dbs::event_column.at(column_idx)
|
|
};
|
|
|
|
const auto it
|
|
{
|
|
column.rbegin()
|
|
};
|
|
|
|
if(!it)
|
|
{
|
|
// If this iterator is invalid the events db should
|
|
// be completely fresh.
|
|
assert(db::sequence(*dbs::events) == 0);
|
|
return 0;
|
|
}
|
|
|
|
const auto &ret
|
|
{
|
|
byte_view<uint64_t>(it->first)
|
|
};
|
|
|
|
event_id = it->second;
|
|
return ret;
|
|
}
|
|
|
|
const uint64_t &
|
|
ircd::m::vm::sequence::get(const eval &eval)
|
|
{
|
|
return eval.sequence;
|
|
}
|