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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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26
federationsender/storage/sqlite3/joined_hosts_table.go
View file

@ -65,7 +65,6 @@ const selectJoinedHostsForRoomsSQL = "" +
type joinedHostsStatements struct {
db *sql.DB
writer sqlutil.TransactionWriter
insertJoinedHostsStmt *sql.Stmt
deleteJoinedHostsStmt *sql.Stmt
selectJoinedHostsStmt *sql.Stmt
@ -75,8 +74,7 @@ type joinedHostsStatements struct {
func NewSQLiteJoinedHostsTable(db *sql.DB) (s *joinedHostsStatements, err error) {
s = &joinedHostsStatements{
db: db,
writer: sqlutil.NewTransactionWriter(),
db: db,
}
_, err = db.Exec(joinedHostsSchema)
if err != nil {
@ -103,25 +101,21 @@ func (s *joinedHostsStatements) InsertJoinedHosts(
roomID, eventID string,
serverName gomatrixserverlib.ServerName,
) error {
return s.writer.Do(s.db, txn, func(txn *sql.Tx) error {
stmt := sqlutil.TxStmt(txn, s.insertJoinedHostsStmt)
_, err := stmt.ExecContext(ctx, roomID, eventID, serverName)
return err
})
stmt := sqlutil.TxStmt(txn, s.insertJoinedHostsStmt)
_, err := stmt.ExecContext(ctx, roomID, eventID, serverName)
return err
}
func (s *joinedHostsStatements) DeleteJoinedHosts(
ctx context.Context, txn *sql.Tx, eventIDs []string,
) error {
return s.writer.Do(s.db, txn, func(txn *sql.Tx) error {
for _, eventID := range eventIDs {
stmt := sqlutil.TxStmt(txn, s.deleteJoinedHostsStmt)
if _, err := stmt.ExecContext(ctx, eventID); err != nil {
return err
}
for _, eventID := range eventIDs {
stmt := sqlutil.TxStmt(txn, s.deleteJoinedHostsStmt)
if _, err := stmt.ExecContext(ctx, eventID); err != nil {
return err
}
return nil
})
}
return nil
}
func (s *joinedHostsStatements) SelectJoinedHostsWithTx(