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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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55
syncapi/storage/sqlite3/output_room_events_table.go
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@ -105,7 +105,6 @@ const selectStateInRangeSQL = "" +
type outputRoomEventsStatements struct {
db *sql.DB
writer sqlutil.TransactionWriter
streamIDStatements *streamIDStatements
insertEventStmt *sql.Stmt
selectEventsStmt *sql.Stmt
@ -120,7 +119,6 @@ type outputRoomEventsStatements struct {
func NewSqliteEventsTable(db *sql.DB, streamID *streamIDStatements) (tables.Events, error) {
s := &outputRoomEventsStatements{
db: db,
writer: sqlutil.NewTransactionWriter(),
streamIDStatements: streamID,
}
_, err := db.Exec(outputRoomEventsSchema)
@ -159,10 +157,8 @@ func (s *outputRoomEventsStatements) UpdateEventJSON(ctx context.Context, event
if err != nil {
return err
}
return s.writer.Do(s.db, nil, func(txn *sql.Tx) error {
_, err = s.updateEventJSONStmt.ExecContext(ctx, headeredJSON, event.EventID())
return err
})
_, err = s.updateEventJSONStmt.ExecContext(ctx, headeredJSON, event.EventID())
return err
}
// selectStateInRange returns the state events between the two given PDU stream positions, exclusive of oldPos, inclusive of newPos.
@ -304,32 +300,27 @@ func (s *outputRoomEventsStatements) InsertEvent(
return 0, err
}
var streamPos types.StreamPosition
err = s.writer.Do(s.db, txn, func(txn *sql.Tx) error {
streamPos, err = s.streamIDStatements.nextStreamID(ctx, txn)
if err != nil {
return err
}
insertStmt := sqlutil.TxStmt(txn, s.insertEventStmt)
_, ierr := insertStmt.ExecContext(
ctx,
streamPos,
event.RoomID(),
event.EventID(),
headeredJSON,
event.Type(),
event.Sender(),
containsURL,
string(addStateJSON),
string(removeStateJSON),
sessionID,
txnID,
excludeFromSync,
excludeFromSync,
)
return ierr
})
streamPos, err := s.streamIDStatements.nextStreamID(ctx, txn)
if err != nil {
return 0, err
}
insertStmt := sqlutil.TxStmt(txn, s.insertEventStmt)
_, err = insertStmt.ExecContext(
ctx,
streamPos,
event.RoomID(),
event.EventID(),
headeredJSON,
event.Type(),
event.Sender(),
containsURL,
string(addStateJSON),
string(removeStateJSON),
sessionID,
txnID,
excludeFromSync,
excludeFromSync,
)
return streamPos, err
}