How to write data immediatly to socket without using flush and waitFOrBytesWritten with QTCPSocket

Question

In my application, While writing to socket the data is not written immediately. But if i use the flush() or waitForByteWritten(msec) then it get written. But here the only problem with flush() and waitforByteWritten() is its creating a performance bottleneck.

If i use it then performance is not so good. But if i doesn't use flush()/waitforBytesWritten() then data itself doesn't transfer immediately.

Is there any flag or something so that data can be written as the data is written to buffer.

if you are `write()`ing small chunks of data within small time intervals, maybe you should disable [Nagle's Algorithm](https://en.wikipedia.org/wiki/Nagle%27s_algorithm), using [`tcpSocket->setSocketOption(QAbstractSocket::LowDelayOption, 1);`](https://doc.qt.io/qt-5/qabstractsocket.html#setSocketOption) — Mike, Jul 01 '16 at 17:03

score 0 · Answer 1 · answered Jul 01 '16 at 19:10

0

You're blocking the event loop. Don't do that. The code that writes to the socket should return as soon as it's done.

answered Jul 01 '16 at 19:10

Kuba hasn't forgotten Monica

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How to write data immediatly to socket without using flush and waitFOrBytesWritten with QTCPSocket

1 Answers1