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Component-wide TransactionWriters (#1290)

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* Offset updates take place using TransactionWriter

* Refactor TransactionWriter in current state server

* Refactor TransactionWriter in federation sender

* Refactor TransactionWriter in key server

* Refactor TransactionWriter in media API

* Refactor TransactionWriter in server key API

* Refactor TransactionWriter in sync API

* Refactor TransactionWriter in user API

* Fix deadlocking Sync API tests

* Un-deadlock device database

* Fix appservice API

* Rename TransactionWriters to Writers

* Move writers up a layer in sync API

* Document sqlutil.Writer interface

* Add note to Writer documentation
This commit is contained in:
Neil Alexander 2020-08-21 10:42:08 +01:00 • committed by GitHub
parent 5aaf32bbed
commit 9d53351dc2
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GPG key ID: 4AEE18F83AFDEB23
56 changed files with 483 additions and 483 deletions
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20
federationsender/storage/sqlite3/blacklist_table.go
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@ -42,7 +42,6 @@ const deleteBlacklistSQL = "" +
type blacklistStatements struct {
db *sql.DB
writer sqlutil.TransactionWriter
insertBlacklistStmt *sql.Stmt
selectBlacklistStmt *sql.Stmt
deleteBlacklistStmt *sql.Stmt
@ -50,8 +49,7 @@ type blacklistStatements struct {
func NewSQLiteBlacklistTable(db *sql.DB) (s *blacklistStatements, err error) {
s = &blacklistStatements{
db: db,
writer: sqlutil.NewTransactionWriter(),
db: db,
}
_, err = db.Exec(blacklistSchema)
if err != nil {
@ -75,11 +73,9 @@ func NewSQLiteBlacklistTable(db *sql.DB) (s *blacklistStatements, err error) {
func (s *blacklistStatements) InsertBlacklist(
ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName,
) error {
return s.writer.Do(s.db, txn, func(txn *sql.Tx) error {
stmt := sqlutil.TxStmt(txn, s.insertBlacklistStmt)
_, err := stmt.ExecContext(ctx, serverName)
return err
})
stmt := sqlutil.TxStmt(txn, s.insertBlacklistStmt)
_, err := stmt.ExecContext(ctx, serverName)
return err
}
// selectRoomForUpdate locks the row for the room and returns the last_event_id.
@ -105,9 +101,7 @@ func (s *blacklistStatements) SelectBlacklist(
func (s *blacklistStatements) DeleteBlacklist(
ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName,
) error {
return s.writer.Do(s.db, txn, func(txn *sql.Tx) error {
stmt := sqlutil.TxStmt(txn, s.deleteBlacklistStmt)
_, err := stmt.ExecContext(ctx, serverName)
return err
})
stmt := sqlutil.TxStmt(txn, s.deleteBlacklistStmt)
_, err := stmt.ExecContext(ctx, serverName)
return err
}