New shared pointer - revision 2

[Mirko Boehm]

On Saturday 10 September 2005 04:32, Frerich Raabe wrote:
> based on your feedback, I modificated the previously presented shared
> pointer a little:
>
> - All functions are documented now. In particular, get() got a warning
> which explains that the reference counting is circumvented, so you better
> be careful.
> - Inspired by a comment from Adriaan, I added a 'detach()' function which
> detaches a pointer. 'p.detach();' is simply nicer than 'p = p.copy();'
> - As requested by Thiago. Instead of an int, QAtomic is used as the type
> for the reference count. Pointer assignments are done via qAtomicSetPtr.
> This hopefully improves thread-safety.
>
> I also added a little testcase which exercises all functions a little bit
> and checks whether certain assertions still hold.
I would like to state the obvious here: Since mit is a shared pointer, make 
sure the class is thread-safe (which is not trivial). The reference counting 
has to work acros thread boundaries. 

Everybody who attended akademy has seen me evangelizing on this topic :-)

--Mirko.
-- 
KDE e.V.: http://www.kde.org/areas/kde-ev/
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