Block reading of X properties

[Lubos Lunak]

 Hello,

 I'm considering adding this optimization to kdelibs but first I'd need more 
testing for it, as it uses some kind of internal code of Xlib and I have no 
idea how it compiles/works on other platforms. Are there still people using 
KDE with some other X than X.org/XFree86? Could you please try if kdelibs 
with this patch compiles and works?

 As for technical details, each XGetWindowProperty() call for reading one X 
property means one X server roundtrip, i.e. sending request to X server and 
waiting for an answer (and the context switches and possibly transferring 
over network and so on). The patch allows grouping of such requests resulting 
in only one roundtrip for the whole group. It doesn't actually save as much 
as I originally expected, but I guess it could be still worth adding it, at 
least for people running remote X (well, since I've already written it 
anyway).

 Thanks

-- 
Lubos Lunak
KDE developer
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