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Only load members of newly joined rooms (#2389)

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* Only load members of newly joined rooms

* Comment that the query is prepared at runtime

Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
This commit is contained in:
Till 2022-04-28 18:53:28 +02:00 committed by GitHub
parent c6ea2c9ff2
commit 2a5b8e0306
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GPG Key ID: 4AEE18F83AFDEB23
7 changed files with 102 additions and 9 deletions
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14
syncapi/notifier/notifier.go
View File

@ -333,6 +333,20 @@ func (n *Notifier) Load(ctx context.Context, db storage.Database) error {
return nil
}
// LoadRooms loads the membership states required to notify users correctly.
func (n *Notifier) LoadRooms(ctx context.Context, db storage.Database, roomIDs []string) error {
n.lock.Lock()
defer n.lock.Unlock()
roomToUsers, err := db.AllJoinedUsersInRoom(ctx, roomIDs)
if err != nil {
return err
}
n.setUsersJoinedToRooms(roomToUsers)
return nil
}
// CurrentPosition returns the current sync position
func (n *Notifier) CurrentPosition() types.StreamingToken {
n.lock.RLock()

3
syncapi/storage/interface.go
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@ -52,6 +52,9 @@ type Database interface {
// AllJoinedUsersInRooms returns a map of room ID to a list of all joined user IDs.
AllJoinedUsersInRooms(ctx context.Context) (map[string][]string, error)
// AllJoinedUsersInRoom returns a map of room ID to a list of all joined user IDs for a given room.
AllJoinedUsersInRoom(ctx context.Context, roomIDs []string) (map[string][]string, error)
// AllPeekingDevicesInRooms returns a map of room ID to a list of all peeking devices.
AllPeekingDevicesInRooms(ctx context.Context) (map[string][]types.PeekingDevice, error)
// Events lookups a list of event by their event ID.

34
syncapi/storage/postgres/current_room_state_table.go
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@ -93,6 +93,9 @@ const selectCurrentStateSQL = "" +
const selectJoinedUsersSQL = "" +
"SELECT room_id, state_key FROM syncapi_current_room_state WHERE type = 'm.room.member' AND membership = 'join'"
const selectJoinedUsersInRoomSQL = "" +
"SELECT room_id, state_key FROM syncapi_current_room_state WHERE type = 'm.room.member' AND membership = 'join' AND room_id = ANY($1)"
const selectStateEventSQL = "" +
"SELECT headered_event_json FROM syncapi_current_room_state WHERE room_id = $1 AND type = $2 AND state_key = $3"
@ -112,6 +115,7 @@ type currentRoomStateStatements struct {
selectRoomIDsWithAnyMembershipStmt *sql.Stmt
selectCurrentStateStmt *sql.Stmt
selectJoinedUsersStmt *sql.Stmt
selectJoinedUsersInRoomStmt *sql.Stmt
selectEventsWithEventIDsStmt *sql.Stmt
selectStateEventStmt *sql.Stmt
}
@ -143,6 +147,9 @@ func NewPostgresCurrentRoomStateTable(db *sql.DB) (tables.CurrentRoomState, erro
if s.selectJoinedUsersStmt, err = db.Prepare(selectJoinedUsersSQL); err != nil {
return nil, err
}
if s.selectJoinedUsersInRoomStmt, err = db.Prepare(selectJoinedUsersInRoomSQL); err != nil {
return nil, err
}
if s.selectEventsWithEventIDsStmt, err = db.Prepare(selectEventsWithEventIDsSQL); err != nil {
return nil, err
}
@ -163,9 +170,32 @@ func (s *currentRoomStateStatements) SelectJoinedUsers(
defer internal.CloseAndLogIfError(ctx, rows, "selectJoinedUsers: rows.close() failed")
result := make(map[string][]string)
var roomID string
var userID string
for rows.Next() {
if err := rows.Scan(&roomID, &userID); err != nil {
return nil, err
}
users := result[roomID]
users = append(users, userID)
result[roomID] = users
}
return result, rows.Err()
}
// SelectJoinedUsersInRoom returns a map of room ID to a list of joined user IDs for a given room.
func (s *currentRoomStateStatements) SelectJoinedUsersInRoom(
ctx context.Context, roomIDs []string,
) (map[string][]string, error) {
rows, err := s.selectJoinedUsersInRoomStmt.QueryContext(ctx, pq.StringArray(roomIDs))
if err != nil {
return nil, err
}
defer internal.CloseAndLogIfError(ctx, rows, "selectJoinedUsers: rows.close() failed")
result := make(map[string][]string)
var userID, roomID string
for rows.Next() {
var roomID string
var userID string
if err := rows.Scan(&roomID, &userID); err != nil {
return nil, err
}

4
syncapi/storage/shared/syncserver.go
View File

@ -168,6 +168,10 @@ func (d *Database) AllJoinedUsersInRooms(ctx context.Context) (map[string][]stri
return d.CurrentRoomState.SelectJoinedUsers(ctx)
}
func (d *Database) AllJoinedUsersInRoom(ctx context.Context, roomIDs []string) (map[string][]string, error) {
return d.CurrentRoomState.SelectJoinedUsersInRoom(ctx, roomIDs)
}
func (d *Database) AllPeekingDevicesInRooms(ctx context.Context) (map[string][]types.PeekingDevice, error) {
return d.Peeks.SelectPeekingDevices(ctx)
}

49
syncapi/storage/sqlite3/current_room_state_table.go
View File

@ -77,6 +77,9 @@ const selectCurrentStateSQL = "" +
const selectJoinedUsersSQL = "" +
"SELECT room_id, state_key FROM syncapi_current_room_state WHERE type = 'm.room.member' AND membership = 'join'"
const selectJoinedUsersInRoomSQL = "" +
"SELECT room_id, state_key FROM syncapi_current_room_state WHERE type = 'm.room.member' AND membership = 'join' AND room_id IN ($1)"
const selectStateEventSQL = "" +
"SELECT headered_event_json FROM syncapi_current_room_state WHERE room_id = $1 AND type = $2 AND state_key = $3"
@ -97,7 +100,8 @@ type currentRoomStateStatements struct {
selectRoomIDsWithMembershipStmt *sql.Stmt
selectRoomIDsWithAnyMembershipStmt *sql.Stmt
selectJoinedUsersStmt *sql.Stmt
selectStateEventStmt *sql.Stmt
//selectJoinedUsersInRoomStmt *sql.Stmt - prepared at runtime due to variadic
selectStateEventStmt *sql.Stmt
}
func NewSqliteCurrentRoomStateTable(db *sql.DB, streamID *StreamIDStatements) (tables.CurrentRoomState, error) {
@ -127,13 +131,16 @@ func NewSqliteCurrentRoomStateTable(db *sql.DB, streamID *StreamIDStatements) (t
if s.selectJoinedUsersStmt, err = db.Prepare(selectJoinedUsersSQL); err != nil {
return nil, err
}
//if s.selectJoinedUsersInRoomStmt, err = db.Prepare(selectJoinedUsersInRoomSQL); err != nil {
// return nil, err
//}
if s.selectStateEventStmt, err = db.Prepare(selectStateEventSQL); err != nil {
return nil, err
}
return s, nil
}
// JoinedMemberLists returns a map of room ID to a list of joined user IDs.
// SelectJoinedUsers returns a map of room ID to a list of joined user IDs.
func (s *currentRoomStateStatements) SelectJoinedUsers(
ctx context.Context,
) (map[string][]string, error) {
@ -144,9 +151,9 @@ func (s *currentRoomStateStatements) SelectJoinedUsers(
defer internal.CloseAndLogIfError(ctx, rows, "selectJoinedUsers: rows.close() failed")
result := make(map[string][]string)
var roomID string
var userID string
for rows.Next() {
var roomID string
var userID string
if err := rows.Scan(&roomID, &userID); err != nil {
return nil, err
}
@ -157,6 +164,40 @@ func (s *currentRoomStateStatements) SelectJoinedUsers(
return result, nil
}
// SelectJoinedUsersInRoom returns a map of room ID to a list of joined user IDs for a given room.
func (s *currentRoomStateStatements) SelectJoinedUsersInRoom(
ctx context.Context, roomIDs []string,
) (map[string][]string, error) {
query := strings.Replace(selectJoinedUsersInRoomSQL, "($1)", sqlutil.QueryVariadic(len(roomIDs)), 1)
params := make([]interface{}, 0, len(roomIDs))
for _, roomID := range roomIDs {
params = append(params, roomID)
}
stmt, err := s.db.Prepare(query)
if err != nil {
return nil, fmt.Errorf("SelectJoinedUsersInRoom s.db.Prepare: %w", err)
}
defer internal.CloseAndLogIfError(ctx, stmt, "SelectJoinedUsersInRoom: stmt.close() failed")
rows, err := stmt.QueryContext(ctx, params...)
if err != nil {
return nil, err
}
defer internal.CloseAndLogIfError(ctx, rows, "SelectJoinedUsersInRoom: rows.close() failed")
result := make(map[string][]string)
var userID, roomID string
for rows.Next() {
if err := rows.Scan(&roomID, &userID); err != nil {
return nil, err
}
users := result[roomID]
users = append(users, userID)
result[roomID] = users
}
return result, rows.Err()
}
// SelectRoomIDsWithMembership returns the list of room IDs which have the given user in the given membership state.
func (s *currentRoomStateStatements) SelectRoomIDsWithMembership(
ctx context.Context,

2
syncapi/storage/tables/interface.go
View File

@ -102,6 +102,8 @@ type CurrentRoomState interface {
SelectRoomIDsWithAnyMembership(ctx context.Context, txn *sql.Tx, userID string) (map[string]string, error)
// SelectJoinedUsers returns a map of room ID to a list of joined user IDs.
SelectJoinedUsers(ctx context.Context) (map[string][]string, error)
// SelectJoinedUsersInRoom returns a map of room ID to a list of joined user IDs for a given room.
SelectJoinedUsersInRoom(ctx context.Context, roomIDs []string) (map[string][]string, error)
}
// BackwardsExtremities keeps track of backwards extremities for a room.

5
syncapi/streams/stream_presence.go
View File

@ -67,9 +67,8 @@ func (p *PresenceStreamProvider) IncrementalSync(
// add newly joined rooms user presences
newlyJoined := joinedRooms(req.Response, req.Device.UserID)
if len(newlyJoined) > 0 {
// TODO: This refreshes all lists and is quite expensive
// The notifier should update the lists itself
if err = p.notifier.Load(ctx, p.DB); err != nil {
// TODO: Check if this is working better than before.
if err = p.notifier.LoadRooms(ctx, p.DB, newlyJoined); err != nil {
req.Log.WithError(err).Error("unable to refresh notifier lists")
return from
}