Fix error reporting in TDS SQL driver.
The error and message handlers used by the freetds library were getting reset to back to the default every time a database was opened. The Qt TDS SQL driver was calling dbinit() from QTDSDriver::open(). This had two problems: 1. dbinit() would reset the error handler previously set by a call to dberrhandle(). A db error would then cause the application to abort. 2. freetds expects dbinit() and dbexit() to be called symmetrically. Opening multiple database connections would result in freetds not cleaning up on application close. Solved by moving the dbinit() call into the QTDSDriver constructor. Change-Id: I59018d83238672c903b96a4d7f3f21b664c3ff4c Reviewed-by: Andy Shaw <andy.shaw@digia.com> Reviewed-by: Mark Brand <mabrand@mabrand.nl>
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@ -138,10 +138,11 @@ QSqlError qMakeError(const QString& err, QSqlError::ErrorType type, int errNo =
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class QTDSDriverPrivate
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{
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public:
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QTDSDriverPrivate(): login(0) {}
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QTDSDriverPrivate(): login(0), initialized(false) {}
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LOGINREC* login; // login information
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QString hostName;
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QString db;
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bool initialized;
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};
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@ -537,6 +538,7 @@ QVariant QTDSDriver::handle() const
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void QTDSDriver::init()
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{
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d = new QTDSDriverPrivate();
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d->initialized = (dbinit() == SUCCEED);
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// the following two code-lines will fail compilation on some FreeTDS versions
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// just comment them out if you have FreeTDS (you won't get any errors and warnings then)
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dberrhandle((QERRHANDLE)qTdsErrHandler);
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@ -578,7 +580,7 @@ bool QTDSDriver::open(const QString & db,
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{
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if (isOpen())
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close();
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if (!dbinit()) {
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if (!d->initialized) {
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setOpenError(true);
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return false;
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}
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@ -86,6 +86,8 @@ private slots:
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void eventNotification_data() { generic_data(); }
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void eventNotification();
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void addDatabase();
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void errorReporting_data();
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void errorReporting();
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//database specific tests
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void recordMySQL_data() { generic_data("QMYSQL"); }
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@ -442,6 +444,36 @@ void tst_QSqlDatabase::addDatabase()
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QVERIFY(!QSqlDatabase::contains("INVALID_CONNECTION"));
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}
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void tst_QSqlDatabase::errorReporting_data()
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{
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QTest::addColumn<QString>("driver");
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QTest::newRow("QTDS") << QString::fromLatin1("QTDS");
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QTest::newRow("QTDS7") << QString::fromLatin1("QTDS7");
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}
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void tst_QSqlDatabase::errorReporting()
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{
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QFETCH(QString, driver);
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if (!QSqlDatabase::drivers().contains(driver))
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QSKIP(QString::fromLatin1("Database driver %1 not available").arg(driver).toLocal8Bit().constData());
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const QString dbName = QLatin1String("errorReportingDb-") + driver;
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QSqlDatabase db = QSqlDatabase::addDatabase(driver, dbName);
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db.setHostName(QLatin1String("127.0.0.1"));
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db.setDatabaseName(QLatin1String("NonExistantDatabase"));
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db.setUserName(QLatin1String("InvalidUser"));
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db.setPassword(QLatin1String("IncorrectPassword"));
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QVERIFY(!db.open());
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db = QSqlDatabase();
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QSqlDatabase::removeDatabase(dbName);
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}
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void tst_QSqlDatabase::open()
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{
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QFETCH(QString, dbName);
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