Christopher Kohlhoff bb6bfd4b5a Change the CompletionCondition concept so that: ...

- 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]

2008-08-28 12:11:47 +00:00

22 KiB

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