QSettings - Sync issue between two process

[kartlee]

Hi,

I am using Qsettings for non gui products to store its settings into xml files. This is written as a library which gets used in C, C++ programs. There will be 1 xml file file for each product. Each product might have more than one sub products and they are written into xml by subproduct grouping as follows -

File: "product1.xml"

@<product1>
<subproduct1>
<settings1>..</settings1>
....
<settingsn>..</settingsn>
</subproduct1>
...
<subproductn>
<settings1>..</settings1>
....
<settingsn>..</settingsn>
</subproductn>

</product1>@

File: productn.xml

@<productn>
<subproduct1>
<settings1>..</settings1>
....
<settingsn>..</settingsn>
</subproduct1>
...
<subproductn>
<settings1>..</settings1>
....
<settingsn>..</settingsn>
</subproductn>

</productn>@

The code in one process does the following -

@settings = new QSettings("product1.xml", XmlFormat);
settings.setValue("settings1",<value>)
sleep(20);
settings.setValue("settings2", <value2>)
settings.sync();@

When the first process goes to sleep, I start another process which does the following -

@settings = new QSettings("product1.xml", XmlFormat);
settings.remove("settings1")
settings.setValue("settings3", <value3>)
settings.sync();@

I would expect the settings1 to go away from product1.xml file but it still persist in the file - product1.xml at the end of above two process. I am not using QCoreApplication(..) in my settings library. Please point issues if there is anything wrong in the above design.

-Kartlee

[goetz]

The last sync wins and that's that of process 1.

[kartlee]

Hi,

Thanks for the reply. I realized the mistake am doing. Thanks again.

-Karthik