[Android-development] Any know issues qith QTcpSocket?

[Harri Pasanen]

Hi,

I don't have any concrete proof yet, just a feeling that something might 
be off in QTcpSocket on Android, as if QTcpSocket::readyRead signal 
would not always fire, or all the bytes would not be flushed when writing.

Does this ring a bell?

The reason I'm entertaining these thoughts is that I have remote control 
function in my app Stoppola, so basically the camera viewfinder is 
transmitted to another Stoppola so that you can shoot without touching 
the camera, which is important for stop motion filming.   At times the 
connection seems to freeze, but usually it resumes by itself.

I'm well aware that my protocol implementation over tcp/ip could be 
buggy, but I haven't yet found anything wrong with it when examining the 
code.  Furthermore, I only get this issue when talking Android to 
Android.  If I pair iOS, Linux or OSX with each other, or with Android 
everything seems to be working perfectly.

Right now my hypothesis is that QAbstractSocket::flush() is not 
necessarily called by the event loop on Android, so I'm trying adding 
manual calls to that.

But as I'm just guessing, before I start looking into packet analyzers, 
any ideas?


Thanks,

Harri