AsynchronousFileChannel.open() - is it blocking?

[Vitaly Davidovich]

It's probably safe to assume that any method that doesn't return a Future
or accepts a CompletionHandler runs synchronously.

On Thu, Mar 1, 2012 at 5:52 PM, Zhong Yu <zhong.j.yu at gmail.com> wrote:

> Is open() a potentially blocking action? Apparently so because some
> sanity checking (e.g. existence of the file) requires disk spin. If
> that's the case, it should probably be explicitly documented.
>
> And after open(), are following methods blocking or non-blocking?
>
>    size();
>    truncate();
>
> Thanks,
> Zhong Yu
>
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