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Use TransactionWriter in roomserver SQLite (#1208)

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Neil Alexander 2020-07-21 10:48:49 +01:00 • committed by GitHub
parent 489f34fed7
commit d76eb1b994
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14 changed files with 259 additions and 148 deletions
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71
roomserver/storage/sqlite3/invite_table.go
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@ -63,6 +63,8 @@ SELECT invite_event_id FROM roomserver_invites WHERE room_nid = $1 AND target_ni
`
type inviteStatements struct {
db *sql.DB
writer *sqlutil.TransactionWriter
insertInviteEventStmt *sql.Stmt
selectInviteActiveForUserInRoomStmt *sql.Stmt
updateInviteRetiredStmt *sql.Stmt
@ -70,7 +72,10 @@ type inviteStatements struct {
}
func NewSqliteInvitesTable(db *sql.DB) (tables.Invites, error) {
s := &inviteStatements{}
s := &inviteStatements{
db: db,
writer: sqlutil.NewTransactionWriter(),
}
_, err := db.Exec(inviteSchema)
if err != nil {
return nil, err
@ -90,42 +95,48 @@ func (s *inviteStatements) InsertInviteEvent(
targetUserNID, senderUserNID types.EventStateKeyNID,
inviteEventJSON []byte,
) (bool, error) {
stmt := sqlutil.TxStmt(txn, s.insertInviteEventStmt)
result, err := stmt.ExecContext(
ctx, inviteEventID, roomNID, targetUserNID, senderUserNID, inviteEventJSON,
)
if err != nil {
return false, err
}
count, err := result.RowsAffected()
if err != nil {
return false, err
}
return count != 0, nil
var count int64
err := s.writer.Do(s.db, txn, func(txn *sql.Tx) error {
stmt := sqlutil.TxStmt(txn, s.insertInviteEventStmt)
result, err := stmt.ExecContext(
ctx, inviteEventID, roomNID, targetUserNID, senderUserNID, inviteEventJSON,
)
if err != nil {
return err
}
count, err = result.RowsAffected()
if err != nil {
return err
}
return nil
})
return count != 0, err
}
func (s *inviteStatements) UpdateInviteRetired(
ctx context.Context,
txn *sql.Tx, roomNID types.RoomNID, targetUserNID types.EventStateKeyNID,
) (eventIDs []string, err error) {
// gather all the event IDs we will retire
stmt := sqlutil.TxStmt(txn, s.selectInvitesAboutToRetireStmt)
rows, err := stmt.QueryContext(ctx, roomNID, targetUserNID)
if err != nil {
return nil, err
}
defer (func() { err = rows.Close() })()
for rows.Next() {
var inviteEventID string
if err = rows.Scan(&inviteEventID); err != nil {
return nil, err
err = s.writer.Do(s.db, txn, func(txn *sql.Tx) error {
// gather all the event IDs we will retire
stmt := sqlutil.TxStmt(txn, s.selectInvitesAboutToRetireStmt)
rows, err := stmt.QueryContext(ctx, roomNID, targetUserNID)
if err != nil {
return err
}
eventIDs = append(eventIDs, inviteEventID)
}
// now retire the invites
stmt = sqlutil.TxStmt(txn, s.updateInviteRetiredStmt)
_, err = stmt.ExecContext(ctx, roomNID, targetUserNID)
defer (func() { err = rows.Close() })()
for rows.Next() {
var inviteEventID string
if err = rows.Scan(&inviteEventID); err != nil {
return err
}
eventIDs = append(eventIDs, inviteEventID)
}
// now retire the invites
stmt = sqlutil.TxStmt(txn, s.updateInviteRetiredStmt)
_, err = stmt.ExecContext(ctx, roomNID, targetUserNID)
return err
})
return
}