* Update copyright notice.
* Version bump.
* Fix out-of-bounds address_v4::broadcast() return value on 64-bit systems.
* Use correct interrupt method when timerfd is not available. Fixes#5045
[SVN r68200]
- It is now evaluated before the first call to the underlying
*_some() operation, as well as after every operation.
- The return value is a number of bytes, which indicates the maximum
length to be transferred on the subsequent *_some() operation. If
the return value is 0 then the composed operation completes.
Add missing unit tests for read_at and write_at.
[SVN r48418]
