How setCaching works?

[qwe3]

Hi,

I would like to check many times ( for example in a loop ) if file exists. This file is in a share folder ( samba ) and sometimes this share folder isn't exists. I check QFileInfo class and I find method setCaching. So I thought, that if I did:

    QFileInfo fileInfo(R"(\\192.168.200.200\someFile.txt)");
    fileInfo.setCaching(false);
    for(int i=0;i<10;i++)
    {
        qInfo()<<fileInfo.exists();
    }

I will have to check 10 times for example 25 seconds ( so for all 250 seconds ). But I have to wait only once - 25 seconds. Next 9 times was very fast ( less than 1 seconds for all ), so ( 26 seconds for all ).

I would like to check if file exists 10 times, not using cache, so I would like to wait 250 seconds.

I know about connectToHost, but this method sometimes not works for me ( I know that folder exists ( I can go to it using windows explorer ), but connectToHost can't connect to it ).

[JonB]

@qwe3
The timing may have nothing to do with Qt implementation code (especially with your no caching). It may be that the timings/behaviour come from the OS/Samba behaviour.

[JoeCFD]

This post is deleted!

[JoeCFD]

https://forum.qt.io/topic/87578/issue-with-qfilesystemwatcher-in-linux-system-with-directory-shared-by-windows-using-cifs-protocol/9