QSqlDatabase::close() sigsev exception

**Raccoon29** · 4th December 2009, 09:07

Hello,

posting code here is quite endless because is a big lot of code...I don't want to waste your precious time

Instead I ask for tips about a strange behavior:
I have a nice QSqlDatabase object, valid, open and cute, everything works fine. Once in a day it has to be closed, so I do

Qt Code:

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// QVector<QSqlDatabase> *vHandle;   // vector of connections
// int vIndex;      // current index=0,  vHandle->count()=1
QSqlDatabase app=vHandle->at(vIndex);
app.close();      // ! exception
vHandle->replace(vIndex,app);

// QVector<QSqlDatabase> *vHandle;   // vector of connections
// int vIndex;      // current index=0,  vHandle->count()=1
QSqlDatabase app=vHandle->at(vIndex);
app.close();      // ! exception
vHandle->replace(vIndex,app);

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app.close() raises exception, in detail QMYSQLDriver::close() does, and more in detail mysql_close(d->mysql) does (I can't go deeper debugging).
So the question is: why should QSqlDatabase::close() raise exception? Aware of this I could find my issue easier.

EDIT: it is not just close()! Also mysql_real_query raises exception when executing query (QSqlQuery::exec())... now I have to understand why it has to crash instead of warn/fail/anything-else-nicer... any idea?

Thanks thanks thanks.