which supports ReadLockWithTimeout()
* commented the code in many more places
* understood the problem of making the read/write locking
work: While it would be possible for each window to
remove the processed region from the global dirty region
in read lock mode (since it is guaranteed not remove
a region not intersecting with its own visible region),
multiple window threads can still not do this at the same
time, since BRegion itself is not threadsafe of course.
* I need to figure out a way for the window threads to be
able to access and modify all needed data in read only mode,
I think this means to divide the global dirty region into
each window again, so that each window thread can simply
clear its own dirty region instead of excluding it from
the global region. Yeah, that might work.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15230 a95241bf-73f2-0310-859d-f6bbb57e9c96
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