[Development] QtNetwork changes from QtDD SF 2011

[Thiago Macieira]

On Tuesday, 6 de December de 2011 12.24.11, Peter Hartmann wrote:
> Another interesting thing to note is that AFAIU with WebKit 2 there can 
> be multiple web processes per application, all using the same cache (and 
> cookie jar), so we would need to make the cache usable by several 
> applications at the same time.
> 
> Maybe Webkit people can elaborate or know how other ports do that...

That's a slightly different problem. With WebKit 2, we have different processes, 
so different instances of QAbstractNetworkCache. The problem then is not to 
make the class be thread-safe, but to make the cache methodology be multi-
process-safe.

For example, you cannot use QMutex. You need to make it safe against another 
process reading or writing to the cache at the same time without using the 
normal threading primitives.

-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center
     Intel Sweden AB - Registration Number: 556189-6027
     Knarrarnäsgatan 15, 164 40 Kista, Stockholm, Sweden
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