RE: aio LSB testcases

["Wichmann, Mats D" <mats.d.wichmann@intel.com>]

> > > test with pipe
> > testing not supported on pipes
> > > test with pty
> > etc...
> > 
> > How does it know? What decided that testing is not supported or even
> > appropriate with pipes, tty, pty etc. What does testing 
> with pipe really
> > mean here?
> 
> I've seen this error as well but I don't know what causes it.

The implementation is supposed to tell you this.
You're supposed to inquire if a file descriptor
supports async I/O by doing:

pathconf(fd, _POSIX_ASYNC_IO)

I imagine this is what the test suite is doing...


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