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ircd:Ⓜ️:dbs: Checkpoint the meta-index "state_head for event_id in room_id"

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This commit is contained in:
Jason Volk 2018-02-04 19:34:59 -08:00
parent 42bd702d8f
commit 7b48bc9f40
2 changed files with 22 additions and 10 deletions
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26
ircd/m/dbs.cc
View file

@ -16,6 +16,7 @@ namespace ircd::m
extern std::set<std::shared_ptr<indexer>> indexers;
extern const std::unique_ptr<indexer> indexer_origin_joined;
extern const std::unique_ptr<indexer> indexer_state_head_for_event_id_in_room_id;
}
struct ircd::m::indexer
@ -29,7 +30,8 @@ struct ircd::m::indexer
std::string name;
virtual void operator()(const event &, db::txn &txn, const db::op &op) const {}
virtual void operator()(const event &, db::txn &, const db::op &op) const {}
virtual void operator()(const event &, db::txn &, const db::op &op, const string_view &) const {}
indexer(std::string name)
:name{std::move(name)}
@ -104,9 +106,6 @@ ircd::m::dbs::write(const event &event,
txn, at<"event_id"_>(event), event
};
if(defined(json::get<"state_key"_>(event)))
state::append_nodes(txn, event);
append_indexes(event, txn);
}
@ -120,6 +119,14 @@ ircd::m::dbs::append_indexes(const event &event,
indexer(event, txn, db::op::SET);
}
if(defined(json::get<"state_key"_>(event)))
{
char headbuf[state::ID_MAX_SZ];
const auto head{state::insert(txn, headbuf, event)};
const m::indexer &indexer{*indexer_state_head_for_event_id_in_room_id};
indexer(event, txn, db::op::SET, head);
}
if(json::get<"type"_>(event) == "m.room.member")
{
const m::indexer &indexer{*indexer_origin_joined};
@ -526,7 +533,7 @@ struct ircd::m::indexer::concat_v
std::string col_c;
void operator()(const event &, db::txn &, const db::op &op) const final override;
void operator()(const event &, db::txn &, const db::op &op, const string_view &) const;
void operator()(const event &, db::txn &, const db::op &op, const string_view &) const final override;
concat_v(std::string col_a, std::string col_b, std::string col_c)
:indexer
@ -696,7 +703,7 @@ struct ircd::m::indexer::concat_3vs
std::string col_b2;
std::string col_c;
void operator()(const event &, db::txn &, const db::op &op, const string_view &prev_event_id) const;
void operator()(const event &, db::txn &, const db::op &op, const string_view &prev_event_id) const final override;
concat_3vs(std::string col_a, std::string col_b0, std::string col_b1, std::string col_b2, std::string col_c)
:indexer
@ -790,7 +797,6 @@ decltype(ircd::m::indexers)
ircd::m::indexers
{{
std::make_shared<ircd::m::indexer::concat>("event_id", "sender"),
std::make_shared<ircd::m::indexer::concat>("event_id", "room_id"),
std::make_shared<ircd::m::indexer::concat_s>("origin", "room_id"),
std::make_shared<ircd::m::indexer::concat_2v>("event_id", "type", "state_key", "room_id"),
std::make_shared<ircd::m::indexer::concat_3vs>("prev_event_id", "type", "state_key", "event_id", "room_id"),
@ -802,6 +808,12 @@ ircd::m::indexer_origin_joined
std::make_unique<ircd::m::indexer::concat_s>("origin", "room_id", "origin_joined in room_id")
};
decltype(ircd::m::indexer_state_head_for_event_id_in_room_id)
ircd::m::indexer_state_head_for_event_id_in_room_id
{
std::make_unique<ircd::m::indexer::concat_v>("state_head", "event_id", "room_id")
};
//
//
//

6
modules/db/events.cc
View file

@ -398,10 +398,10 @@ const database::descriptor event_id_in_sender
event_id_in,
};
const database::descriptor event_id_in_room_id
const database::descriptor state_head_for_event_id_in_room_id
{
// name
"event_id in room_id",
"state_head for event_id in room_id",
// explanation
R"(### developer note:
@ -742,7 +742,7 @@ const database::description events_description
// * broad but useful in cases
// ? eliminate for prev_event?
// ? eliminate/combine with state tree related?
event_id_in_room_id,
state_head_for_event_id_in_room_id,
// (room_id, origin) => ()
// Sequence of all origins for a room, EVER