QTextStream and transactions

tungsteno

Why does not QTextStream support transactions and, hence, the managment of fragmentation, as opposed to QDataStream?

VRonin

QDataStream only provides a convenient interface over the transaction, the actual transaction is handled by the QIODevice directly: https://doc.qt.io/qt-5/qiodevice.html#startTransaction
You are free to use transactions with QTextStream you just need a couple more lines of code.

instead of dataStream.startTransaction() you would use textStream.device()->startTransaction();
instead of if(dataStream.commitTransaction()){/*do stuff*/} you would use:

if(textStream.status() == QTextStream::Ok){
textStream.device()->commitTransaction();
/*do stuff*/
}
else{
textStream.device()->rollbackTransaction();
}