SimpleAsynchronousFileChannelImpl implRead() and implWrite() fail for named pipes

[Alan Bateman]

On 15/11/2013 19:08, Jeffrey Shaw wrote:
> Hello,
> I want to perform asynchronous reads and writes on named pipes in a 
> non-Windows environment. Named pipes are not seekable. 
> sun.nio.ch.IOUtil.read() and write() appear to have special behavior 
> defined for when position = -1 that does not involve seeking. 
> Unfortunately, sun.nio.ch 
> <http://sun.nio.ch>.SimpleAsynchronousFileChannelImpl readImpl() and 
> writeImpl() both throw exceptions if position < -1, even though 
> position = -1 is both allowed by the IOUtil functions and required for 
> use with named pipes.
>
> Is this a bug I or someone else can file?
>
> I haven't checked WindowsAsynchronousFileChannelImpl for the same problem.
>
> Thanks,
> Jeff
There isn't really any support for named pipe. It has come up a few 
times and wouldn't be too hard to have a SocketChannel or 
AsynchronousSocketChannel to a pipe. AsynchronousFileChannel is about 
accessing a file by position so I don't think this would be a good fit 
for pipes.

-Alan
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