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ircd:Ⓜ️ Reenable one of the m::room::members iterations now over the state b-tree.

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This commit is contained in:
Jason Volk 2018-02-08 21:03:25 -08:00
parent ec2f44f409
commit 62dbef1df6
1 changed files with 31 additions and 7 deletions
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38
ircd/m/room.cc
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@ -381,19 +381,43 @@ ircd::m::room::get(const string_view &type,
const event::closure &closure)
const
{
const vm::query<vm::where::equal> query
const event::id::buf event_id_buf
{
{ "room_id", room_id },
{ "type", type },
{ "state_key", state_key },
!event_id? head(room_id) : string_view{}
};
return m::vm::test(query, [&closure]
(const auto &event)
const event::id event_id
{
this->event_id? this->event_id : event_id_buf
};
m::state::id_buffer state_root_buf;
const auto state_root
{
dbs::state_root(state_root_buf, room_id, event_id)
};
bool ret{false};
m::state::get(state_root, type, state_key, [&closure, &ret]
(const string_view &event_id)
{
static const event _dummy_;
std::array<db::cell, dbs::event_columns> cell;
db::row row
{
*dbs::events, event_id, _dummy_, cell
};
if(!row.valid(event_id))
return;
m::event event;
assign(event, row, event_id);
ret = true;
closure(event);
return true;
});
return ret;
}
bool