[Qt-interest] Qt-interest Digest, Vol 10, Issue 20

[Info]

Hi Thiago,

That's excellent news! I thought perhaps I was expecting too much in  
terms of accuracy but glad to hear it's fixed. Does the fix also cover  
the HTTPS upload? It would be fantastic if it does! I'm running the  
lastest 4.5.2 release and the behaviour is the same as the previous so  
I assume it must be in the 4.6.0 release, do you have any idea when  
this will be available?

Thanks!

On 2 Sep 2009, at 22:31, qt-interest-request at trolltech.com wrote:

> Em Quarta-feira 02 Setembro 2009, ?s 18:22:43, Info escreveu:
>> Hi,
>>
>> Does anyone use QNetworkAccessManager and QNetworkReply? I've some  
>> odd
>> behaviour with them in that the uploadProgress() event is fired and
>> has no real baring on the actual progress of the upload.
>
> That's a bug and has been fixed.
>
> I don't remember if we could fix it for the 4.5.x series, though.  
> I'm certain
> it's fixed for the upcoming 4.6.0.
>
> What happens is that the QNetworkReply class emits the signal when  
> it writes
> to its backend (the private QHttpNetworkConnection class). However,  
> since
> QTcpSocket's outgoing buffer is not bounded, QHttpNetworkConnection  
> ends up
> transferring all bytes from your source data directly into the  
> socket buffer.
> So we buffer everything in memory and then send as fast as the  
> kernel socket
> can send.
>
> The fix was to control the buffer size and stop reading from the  
> user once we
> reach a certain threshold.
> -- 
> Thiago Macieira - thiago.macieira (AT) nokia.com
>  Senior Product Manager - Nokia, Qt Development Frameworks
>     Sandakerveien 116, NO-0402 Oslo, Norway
>
> Qt Developer Days 2009 | Registration Now Open!
> Munich, Germany: Oct 12 - 14     San Francisco, California: Nov 2 - 4
>      http://qt.nokia.com/qtdevdays2009
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