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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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33
federationsender/storage/sqlite3/queue_json_table.go
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@ -50,7 +50,6 @@ const selectJSONSQL = "" +
type queueJSONStatements struct {
db *sql.DB
writer sqlutil.TransactionWriter
insertJSONStmt *sql.Stmt
//deleteJSONStmt *sql.Stmt - prepared at runtime due to variadic
//selectJSONStmt *sql.Stmt - prepared at runtime due to variadic
@ -58,8 +57,7 @@ type queueJSONStatements struct {
func NewSQLiteQueueJSONTable(db *sql.DB) (s *queueJSONStatements, err error) {
s = &queueJSONStatements{
db: db,
writer: sqlutil.NewTransactionWriter(),
db: db,
}
_, err = db.Exec(queueJSONSchema)
if err != nil {
@ -74,18 +72,15 @@ func NewSQLiteQueueJSONTable(db *sql.DB) (s *queueJSONStatements, err error) {
func (s *queueJSONStatements) InsertQueueJSON(
ctx context.Context, txn *sql.Tx, json string,
) (lastid int64, err error) {
err = s.writer.Do(s.db, txn, func(txn *sql.Tx) error {
stmt := sqlutil.TxStmt(txn, s.insertJSONStmt)
res, err := stmt.ExecContext(ctx, json)
if err != nil {
return fmt.Errorf("stmt.QueryContext: %w", err)
}
lastid, err = res.LastInsertId()
if err != nil {
return fmt.Errorf("res.LastInsertId: %w", err)
}
return nil
})
stmt := sqlutil.TxStmt(txn, s.insertJSONStmt)
res, err := stmt.ExecContext(ctx, json)
if err != nil {
return 0, fmt.Errorf("stmt.QueryContext: %w", err)
}
lastid, err = res.LastInsertId()
if err != nil {
return 0, fmt.Errorf("res.LastInsertId: %w", err)
}
return
}
@ -103,11 +98,9 @@ func (s *queueJSONStatements) DeleteQueueJSON(
iNIDs[k] = v
}
return s.writer.Do(s.db, txn, func(txn *sql.Tx) error {
stmt := sqlutil.TxStmt(txn, deleteStmt)
_, err = stmt.ExecContext(ctx, iNIDs...)
return err
})
stmt := sqlutil.TxStmt(txn, deleteStmt)
_, err = stmt.ExecContext(ctx, iNIDs...)
return err
}
func (s *queueJSONStatements) SelectQueueJSON(