Race condition

[noisecode3]

Fix race condition from worker thread that load level covers and the main thread using the the database connection at the same time? Do we need a look? This is not reproducible.

qt.sql.qsqlquery: QSqlQuery::value: unknown field name 'Picture.data'
QPixmap::scaled: Pixmap is a null pixmap
qt.sql.qsqlquery: QSqlQuery::value: unknown field name 'Picture.data'
QPixmap::scaled: Pixmap is a null pixmap
qt.sql.qsqlquery: QSqlQuery::value: unknown field name 'Picture.data'
QPixmap::scaled: Pixmap is a null pixmap
qt.sql.qsqlquery: QSqlQuery::value: unknown field name 'Picture.data'
QPixmap::scaled: Pixmap is a null pixmap
qt.sql.qsqlquery: QSqlQuery::value: unknown field name 'Picture.data'
QPixmap::scaled: Pixmap is a null pixmap
qt.sql.qsqlquery: QSqlQuery::value: unknown field name 'Picture.data'
QPixmap::scaled: Pixmap is a null pixmap
qt.sql.qsqlquery: QSqlQuery::value: unknown field name 'Picture.data'
QPixmap::scaled: Pixmap is a null pixmap
qt.sql.qsqlquery: QSqlQuery::value: unknown field name 'Picture.data'
QPixmap::scaled: Pixmap is a null pixmap
qt.sql.qsqlquery: QSqlQuery::value: unknown field name 'Picture.data'
QPixmap::scaled: Pixmap is a null pixmap
qt.sql.qsqlquery: QSqlQuery::value: unknown field name 'Picture.data'
QPixmap::scaled: Pixmap is a null pixmap
qt.sql.qsqlquery: QSqlQuery::value: unknown field name 'Picture.data'
QPixmap::scaled: Pixmap is a null pixmap
qt.sql.qsqlquery: QSqlQuery::value: unknown field name 'Picture.data'
QPixmap::scaled: Pixmap is a null pixmap
qt.sql.qsqlquery: QSqlQuery::value: unknown field name 'Picture.data'
QPixmap::scaled: Pixmap is a null pixmap
qt.sql.qsqlquery: QSqlQuery::value: unknown field name 'Picture.data'
QPixmap::scaled: Pixmap is a null pixmap
qt.sql.qsqlquery: QSqlQuery::value: unknown field name 'Picture.data'
QPixmap::scaled: Pixmap is a null pixmap
qt.sql.qsqlquery: QSqlQuery::value: unknown field name 'Picture.data'
QPixmap::scaled: Pixmap is a null pixmap
qt.sql.qsqlquery: QSqlQuery::value: unknown field name 'Picture.data'
QPixmap::scaled: Pixmap is a null pixmap
qt.sql.qsqlquery: QSqlQuery::value: unknown field name 'Picture.data'
QPixmap::scaled: Pixmap is a null pixmap
qt.sql.qsqlquery: QSqlQuery::value: unknown field name 'Picture.data'
QPixmap::scaled: Pixmap is a null pixmap
fish: Job 1, 'TombRaiderLinuxLauncher' terminated by signal SIGSEGV (Address boundary error)

[noisecode3]

There is only one way, the singleton data object must check what thread id its on and return a pointer to a QSqlDatabase for every thread when it preforms a query . With lazy initialization of the QSqlDatabase objects for every thread we can separate them without ever blocking them and still abstract away the owner of the data class by using the singleton still. There is no other way to separate them, we would have to have one model object for every thread that don't make any sense.

        Path path = Path(Path::resource);
        path << "tombll.db";

the first call is in Model::setup()
but here we should give Data the Path object to save
make the first main thread QSqlDatabase then lazy load them when it arrives from another thread?

What dose the bath duck 🦆 say?

[noisecode3]

Lets hope 46d767e fix this, but lets wait a week before closing.